Index: unittests/ASTMatchers/ASTMatchersTest.h =================================================================== --- unittests/ASTMatchers/ASTMatchersTest.h +++ unittests/ASTMatchers/ASTMatchersTest.h @@ -278,7 +278,79 @@ Code, AMatcher, std::move(FindResultVerifier), false); } -} // end namespace ast_matchers -} // end namespace clang +// Implements a run method that returns whether BoundNodes contains a +// Decl bound to Id that can be dynamically cast to T. +// Optionally checks that the check succeeded a specific number of times. +template +class VerifyIdIsBoundTo : public BoundNodesCallback { +public: + // Create an object that checks that a node of type \c T was bound to \c Id. + // Does not check for a certain number of matches. + explicit VerifyIdIsBoundTo(llvm::StringRef Id) + : Id(Id), ExpectedCount(-1), Count(0) {} + + // Create an object that checks that a node of type \c T was bound to \c Id. + // Checks that there were exactly \c ExpectedCount matches. + VerifyIdIsBoundTo(llvm::StringRef Id, int ExpectedCount) + : Id(Id), ExpectedCount(ExpectedCount), Count(0) {} + + // Create an object that checks that a node of type \c T was bound to \c Id. + // Checks that there was exactly one match with the name \c ExpectedName. + // Note that \c T must be a NamedDecl for this to work. + VerifyIdIsBoundTo(llvm::StringRef Id, llvm::StringRef ExpectedName, + int ExpectedCount = 1) + : Id(Id), ExpectedCount(ExpectedCount), Count(0), + ExpectedName(ExpectedName) {} + + void onEndOfTranslationUnit() override { + if (ExpectedCount != -1) + EXPECT_EQ(ExpectedCount, Count); + if (!ExpectedName.empty()) + EXPECT_EQ(ExpectedName, Name); + Count = 0; + Name.clear(); + } + + ~VerifyIdIsBoundTo() override { + EXPECT_EQ(0, Count); + EXPECT_EQ("", Name); + } + + bool run(const BoundNodes *Nodes) override { + const BoundNodes::IDToNodeMap &M = Nodes->getMap(); + if (Nodes->getNodeAs(Id)) { + ++Count; + if (const NamedDecl *Named = Nodes->getNodeAs(Id)) { + Name = Named->getNameAsString(); + } else if (const NestedNameSpecifier *NNS = + Nodes->getNodeAs(Id)) { + llvm::raw_string_ostream OS(Name); + NNS->print(OS, PrintingPolicy(LangOptions())); + } + BoundNodes::IDToNodeMap::const_iterator I = M.find(Id); + EXPECT_NE(M.end(), I); + if (I != M.end()) + EXPECT_EQ(Nodes->getNodeAs(Id), I->second.get()); + return true; + } + EXPECT_TRUE(M.count(Id) == 0 || + M.find(Id)->second.template get() == nullptr); + return false; + } + + bool run(const BoundNodes *Nodes, ASTContext *Context) override { + return run(Nodes); + } + +private: + const std::string Id; + const int ExpectedCount; + int Count; + const std::string ExpectedName; + std::string Name; +}; + +} // namespace ast_matchers +} // namespace clang #endif // LLVM_CLANG_UNITTESTS_AST_MATCHERS_AST_MATCHERS_TEST_H Index: unittests/ASTMatchers/ASTMatchersTest.cpp =================================================================== --- unittests/ASTMatchers/ASTMatchersTest.cpp +++ /dev/null @@ -1,5621 +0,0 @@ -//===- unittest/Tooling/ASTMatchersTest.cpp - AST matcher unit tests ------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -#include "ASTMatchersTest.h" -#include "clang/AST/PrettyPrinter.h" -#include "clang/ASTMatchers/ASTMatchFinder.h" -#include "clang/ASTMatchers/ASTMatchers.h" -#include "clang/Tooling/Tooling.h" -#include "llvm/ADT/Triple.h" -#include "llvm/Support/Host.h" -#include "gtest/gtest.h" - -namespace clang { -namespace ast_matchers { - -#if GTEST_HAS_DEATH_TEST -TEST(HasNameDeathTest, DiesOnEmptyName) { - ASSERT_DEBUG_DEATH({ - DeclarationMatcher HasEmptyName = recordDecl(hasName("")); - EXPECT_TRUE(notMatches("class X {};", HasEmptyName)); - }, ""); -} - -TEST(HasNameDeathTest, DiesOnEmptyPattern) { - ASSERT_DEBUG_DEATH({ - DeclarationMatcher HasEmptyName = recordDecl(matchesName("")); - EXPECT_TRUE(notMatches("class X {};", HasEmptyName)); - }, ""); -} - -TEST(IsDerivedFromDeathTest, DiesOnEmptyBaseName) { - ASSERT_DEBUG_DEATH({ - DeclarationMatcher IsDerivedFromEmpty = cxxRecordDecl(isDerivedFrom("")); - EXPECT_TRUE(notMatches("class X {};", IsDerivedFromEmpty)); - }, ""); -} -#endif - -TEST(Finder, DynamicOnlyAcceptsSomeMatchers) { - MatchFinder Finder; - EXPECT_TRUE(Finder.addDynamicMatcher(decl(), nullptr)); - EXPECT_TRUE(Finder.addDynamicMatcher(callExpr(), nullptr)); - EXPECT_TRUE(Finder.addDynamicMatcher(constantArrayType(hasSize(42)), - nullptr)); - - // Do not accept non-toplevel matchers. - EXPECT_FALSE(Finder.addDynamicMatcher(isArrow(), nullptr)); - EXPECT_FALSE(Finder.addDynamicMatcher(hasName("x"), nullptr)); -} - -TEST(Decl, MatchesDeclarations) { - EXPECT_TRUE(notMatches("", decl(usingDecl()))); - EXPECT_TRUE(matches("namespace x { class X {}; } using x::X;", - decl(usingDecl()))); -} - -TEST(NameableDeclaration, MatchesVariousDecls) { - DeclarationMatcher NamedX = namedDecl(hasName("X")); - EXPECT_TRUE(matches("typedef int X;", NamedX)); - EXPECT_TRUE(matches("int X;", NamedX)); - EXPECT_TRUE(matches("class foo { virtual void X(); };", NamedX)); - EXPECT_TRUE(matches("void foo() try { } catch(int X) { }", NamedX)); - EXPECT_TRUE(matches("void foo() { int X; }", NamedX)); - EXPECT_TRUE(matches("namespace X { }", NamedX)); - EXPECT_TRUE(matches("enum X { A, B, C };", NamedX)); - - EXPECT_TRUE(notMatches("#define X 1", NamedX)); -} - -TEST(NameableDeclaration, REMatchesVariousDecls) { - DeclarationMatcher NamedX = namedDecl(matchesName("::X")); - EXPECT_TRUE(matches("typedef int Xa;", NamedX)); - EXPECT_TRUE(matches("int Xb;", NamedX)); - EXPECT_TRUE(matches("class foo { virtual void Xc(); };", NamedX)); - EXPECT_TRUE(matches("void foo() try { } catch(int Xdef) { }", NamedX)); - EXPECT_TRUE(matches("void foo() { int Xgh; }", NamedX)); - EXPECT_TRUE(matches("namespace Xij { }", NamedX)); - EXPECT_TRUE(matches("enum X { A, B, C };", NamedX)); - - EXPECT_TRUE(notMatches("#define Xkl 1", NamedX)); - - DeclarationMatcher StartsWithNo = namedDecl(matchesName("::no")); - EXPECT_TRUE(matches("int no_foo;", StartsWithNo)); - EXPECT_TRUE(matches("class foo { virtual void nobody(); };", StartsWithNo)); - - DeclarationMatcher Abc = namedDecl(matchesName("a.*b.*c")); - EXPECT_TRUE(matches("int abc;", Abc)); - EXPECT_TRUE(matches("int aFOObBARc;", Abc)); - EXPECT_TRUE(notMatches("int cab;", Abc)); - EXPECT_TRUE(matches("int cabc;", Abc)); - - DeclarationMatcher StartsWithK = namedDecl(matchesName(":k[^:]*$")); - EXPECT_TRUE(matches("int k;", StartsWithK)); - EXPECT_TRUE(matches("int kAbc;", StartsWithK)); - EXPECT_TRUE(matches("namespace x { int kTest; }", StartsWithK)); - EXPECT_TRUE(matches("class C { int k; };", StartsWithK)); - EXPECT_TRUE(notMatches("class C { int ckc; };", StartsWithK)); -} - -TEST(DeclarationMatcher, MatchClass) { - DeclarationMatcher ClassMatcher(recordDecl()); - llvm::Triple Triple(llvm::sys::getDefaultTargetTriple()); - if (Triple.getOS() != llvm::Triple::Win32 || - Triple.getEnvironment() != llvm::Triple::MSVC) - EXPECT_FALSE(matches("", ClassMatcher)); - else - // Matches class type_info. - EXPECT_TRUE(matches("", ClassMatcher)); - - DeclarationMatcher ClassX = recordDecl(recordDecl(hasName("X"))); - EXPECT_TRUE(matches("class X;", ClassX)); - EXPECT_TRUE(matches("class X {};", ClassX)); - EXPECT_TRUE(matches("template class X {};", ClassX)); - EXPECT_TRUE(notMatches("", ClassX)); -} - -TEST(DeclarationMatcher, ClassIsDerived) { - DeclarationMatcher IsDerivedFromX = cxxRecordDecl(isDerivedFrom("X")); - - EXPECT_TRUE(matches("class X {}; class Y : public X {};", IsDerivedFromX)); - EXPECT_TRUE(notMatches("class X {};", IsDerivedFromX)); - EXPECT_TRUE(notMatches("class X;", IsDerivedFromX)); - EXPECT_TRUE(notMatches("class Y;", IsDerivedFromX)); - EXPECT_TRUE(notMatches("", IsDerivedFromX)); - - DeclarationMatcher IsAX = cxxRecordDecl(isSameOrDerivedFrom("X")); - - EXPECT_TRUE(matches("class X {}; class Y : public X {};", IsAX)); - EXPECT_TRUE(matches("class X {};", IsAX)); - EXPECT_TRUE(matches("class X;", IsAX)); - EXPECT_TRUE(notMatches("class Y;", IsAX)); - EXPECT_TRUE(notMatches("", IsAX)); - - DeclarationMatcher ZIsDerivedFromX = - cxxRecordDecl(hasName("Z"), isDerivedFrom("X")); - EXPECT_TRUE( - matches("class X {}; class Y : public X {}; class Z : public Y {};", - ZIsDerivedFromX)); - EXPECT_TRUE( - matches("class X {};" - "template class Y : public X {};" - "class Z : public Y {};", ZIsDerivedFromX)); - EXPECT_TRUE(matches("class X {}; template class Z : public X {};", - ZIsDerivedFromX)); - EXPECT_TRUE( - matches("template class X {}; " - "template class Z : public X {};", - ZIsDerivedFromX)); - EXPECT_TRUE( - matches("template class X {}; " - "template class Z : public X {};", - ZIsDerivedFromX)); - EXPECT_TRUE( - notMatches("template class A { class Z : public X {}; };", - ZIsDerivedFromX)); - EXPECT_TRUE( - matches("template class A { public: class Z : public X {}; }; " - "class X{}; void y() { A::Z z; }", ZIsDerivedFromX)); - EXPECT_TRUE( - matches("template class X {}; " - "template class A { class Z : public X {}; };", - ZIsDerivedFromX)); - EXPECT_TRUE( - notMatches("template class X> class A { " - " class Z : public X {}; };", ZIsDerivedFromX)); - EXPECT_TRUE( - matches("template class X> class A { " - " public: class Z : public X {}; }; " - "template class X {}; void y() { A::Z z; }", - ZIsDerivedFromX)); - EXPECT_TRUE( - notMatches("template class A { class Z : public X::D {}; };", - ZIsDerivedFromX)); - EXPECT_TRUE( - matches("template class A { public: " - " class Z : public X::D {}; }; " - "class Y { public: class X {}; typedef X D; }; " - "void y() { A::Z z; }", ZIsDerivedFromX)); - EXPECT_TRUE( - matches("class X {}; typedef X Y; class Z : public Y {};", - ZIsDerivedFromX)); - EXPECT_TRUE( - matches("template class Y { typedef typename T::U X; " - " class Z : public X {}; };", ZIsDerivedFromX)); - EXPECT_TRUE(matches("class X {}; class Z : public ::X {};", - ZIsDerivedFromX)); - EXPECT_TRUE( - notMatches("template class X {}; " - "template class A { class Z : public X::D {}; };", - ZIsDerivedFromX)); - EXPECT_TRUE( - matches("template class X { public: typedef X D; }; " - "template class A { public: " - " class Z : public X::D {}; }; void y() { A::Z z; }", - ZIsDerivedFromX)); - EXPECT_TRUE( - notMatches("template class A { class Z : public X::D::E {}; };", - ZIsDerivedFromX)); - EXPECT_TRUE( - matches("class X {}; typedef X V; typedef V W; class Z : public W {};", - ZIsDerivedFromX)); - EXPECT_TRUE( - matches("class X {}; class Y : public X {}; " - "typedef Y V; typedef V W; class Z : public W {};", - ZIsDerivedFromX)); - EXPECT_TRUE( - matches("template class X {}; " - "template class A { class Z : public X {}; };", - ZIsDerivedFromX)); - EXPECT_TRUE( - notMatches("template class D { typedef X A; typedef A B; " - " typedef B C; class Z : public C {}; };", - ZIsDerivedFromX)); - EXPECT_TRUE( - matches("class X {}; typedef X A; typedef A B; " - "class Z : public B {};", ZIsDerivedFromX)); - EXPECT_TRUE( - matches("class X {}; typedef X A; typedef A B; typedef B C; " - "class Z : public C {};", ZIsDerivedFromX)); - EXPECT_TRUE( - matches("class U {}; typedef U X; typedef X V; " - "class Z : public V {};", ZIsDerivedFromX)); - EXPECT_TRUE( - matches("class Base {}; typedef Base X; " - "class Z : public Base {};", ZIsDerivedFromX)); - EXPECT_TRUE( - matches("class Base {}; typedef Base Base2; typedef Base2 X; " - "class Z : public Base {};", ZIsDerivedFromX)); - EXPECT_TRUE( - notMatches("class Base {}; class Base2 {}; typedef Base2 X; " - "class Z : public Base {};", ZIsDerivedFromX)); - EXPECT_TRUE( - matches("class A {}; typedef A X; typedef A Y; " - "class Z : public Y {};", ZIsDerivedFromX)); - EXPECT_TRUE( - notMatches("template class Z;" - "template <> class Z {};" - "template class Z : public Z {};", - IsDerivedFromX)); - EXPECT_TRUE( - matches("template class X;" - "template <> class X {};" - "template class X : public X {};", - IsDerivedFromX)); - EXPECT_TRUE(matches( - "class X {};" - "template class Z;" - "template <> class Z {};" - "template class Z : public Z, public X {};", - ZIsDerivedFromX)); - EXPECT_TRUE( - notMatches("template struct X;" - "template struct X : public X {};", - cxxRecordDecl(isDerivedFrom(recordDecl(hasName("Some")))))); - EXPECT_TRUE(matches( - "struct A {};" - "template struct X;" - "template struct X : public X {};" - "template<> struct X<0> : public A {};" - "struct B : public X<42> {};", - cxxRecordDecl(hasName("B"), isDerivedFrom(recordDecl(hasName("A")))))); - - // FIXME: Once we have better matchers for template type matching, - // get rid of the Variable(...) matching and match the right template - // declarations directly. - const char *RecursiveTemplateOneParameter = - "class Base1 {}; class Base2 {};" - "template class Z;" - "template <> class Z : public Base1 {};" - "template <> class Z : public Base2 {};" - "template <> class Z : public Z {};" - "template <> class Z : public Z {};" - "template class Z : public Z, public Z {};" - "void f() { Z z_float; Z z_double; Z z_char; }"; - EXPECT_TRUE(matches( - RecursiveTemplateOneParameter, - varDecl(hasName("z_float"), - hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1"))))))); - EXPECT_TRUE(notMatches( - RecursiveTemplateOneParameter, - varDecl(hasName("z_float"), - hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base2"))))))); - EXPECT_TRUE(matches( - RecursiveTemplateOneParameter, - varDecl(hasName("z_char"), - hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1"), - isDerivedFrom("Base2"))))))); - - const char *RecursiveTemplateTwoParameters = - "class Base1 {}; class Base2 {};" - "template class Z;" - "template class Z : public Base1 {};" - "template class Z : public Base2 {};" - "template class Z : public Z {};" - "template class Z : public Z {};" - "template class Z : " - " public Z, public Z {};" - "void f() { Z z_float; Z z_double; " - " Z z_char; }"; - EXPECT_TRUE(matches( - RecursiveTemplateTwoParameters, - varDecl(hasName("z_float"), - hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1"))))))); - EXPECT_TRUE(notMatches( - RecursiveTemplateTwoParameters, - varDecl(hasName("z_float"), - hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base2"))))))); - EXPECT_TRUE(matches( - RecursiveTemplateTwoParameters, - varDecl(hasName("z_char"), - hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1"), - isDerivedFrom("Base2"))))))); - EXPECT_TRUE(matches( - "namespace ns { class X {}; class Y : public X {}; }", - cxxRecordDecl(isDerivedFrom("::ns::X")))); - EXPECT_TRUE(notMatches( - "class X {}; class Y : public X {};", - cxxRecordDecl(isDerivedFrom("::ns::X")))); - - EXPECT_TRUE(matches( - "class X {}; class Y : public X {};", - cxxRecordDecl(isDerivedFrom(recordDecl(hasName("X")).bind("test"))))); - - EXPECT_TRUE(matches( - "template class X {};" - "template using Z = X;" - "template class Y : Z {};", - cxxRecordDecl(isDerivedFrom(namedDecl(hasName("X")))))); -} - -TEST(DeclarationMatcher, hasMethod) { - EXPECT_TRUE(matches("class A { void func(); };", - cxxRecordDecl(hasMethod(hasName("func"))))); - EXPECT_TRUE(notMatches("class A { void func(); };", - cxxRecordDecl(hasMethod(isPublic())))); -} - -TEST(DeclarationMatcher, ClassDerivedFromDependentTemplateSpecialization) { - EXPECT_TRUE(matches( - "template struct A {" - " template struct F {};" - "};" - "template struct B : A::template F {};" - "B b;", - cxxRecordDecl(hasName("B"), isDerivedFrom(recordDecl())))); -} - -TEST(DeclarationMatcher, hasDeclContext) { - EXPECT_TRUE(matches( - "namespace N {" - " namespace M {" - " class D {};" - " }" - "}", - recordDecl(hasDeclContext(namespaceDecl(hasName("M")))))); - EXPECT_TRUE(notMatches( - "namespace N {" - " namespace M {" - " class D {};" - " }" - "}", - recordDecl(hasDeclContext(namespaceDecl(hasName("N")))))); - - EXPECT_TRUE(matches("namespace {" - " namespace M {" - " class D {};" - " }" - "}", - recordDecl(hasDeclContext(namespaceDecl( - hasName("M"), hasDeclContext(namespaceDecl())))))); - - EXPECT_TRUE(matches("class D{};", decl(hasDeclContext(decl())))); -} - -TEST(DeclarationMatcher, translationUnitDecl) { - const std::string Code = "int MyVar1;\n" - "namespace NameSpace {\n" - "int MyVar2;\n" - "} // namespace NameSpace\n"; - EXPECT_TRUE(matches( - Code, varDecl(hasName("MyVar1"), hasDeclContext(translationUnitDecl())))); - EXPECT_FALSE(matches( - Code, varDecl(hasName("MyVar2"), hasDeclContext(translationUnitDecl())))); - EXPECT_TRUE(matches( - Code, - varDecl(hasName("MyVar2"), - hasDeclContext(decl(hasDeclContext(translationUnitDecl())))))); -} - -TEST(DeclarationMatcher, LinkageSpecification) { - EXPECT_TRUE(matches("extern \"C\" { void foo() {}; }", linkageSpecDecl())); - EXPECT_TRUE(notMatches("void foo() {};", linkageSpecDecl())); -} - -TEST(ClassTemplate, DoesNotMatchClass) { - DeclarationMatcher ClassX = classTemplateDecl(hasName("X")); - EXPECT_TRUE(notMatches("class X;", ClassX)); - EXPECT_TRUE(notMatches("class X {};", ClassX)); -} - -TEST(ClassTemplate, MatchesClassTemplate) { - DeclarationMatcher ClassX = classTemplateDecl(hasName("X")); - EXPECT_TRUE(matches("template class X {};", ClassX)); - EXPECT_TRUE(matches("class Z { template class X {}; };", ClassX)); -} - -TEST(ClassTemplate, DoesNotMatchClassTemplateExplicitSpecialization) { - EXPECT_TRUE(notMatches("template class X { };" - "template<> class X { int a; };", - classTemplateDecl(hasName("X"), - hasDescendant(fieldDecl(hasName("a")))))); -} - -TEST(ClassTemplate, DoesNotMatchClassTemplatePartialSpecialization) { - EXPECT_TRUE(notMatches("template class X { };" - "template class X { int a; };", - classTemplateDecl(hasName("X"), - hasDescendant(fieldDecl(hasName("a")))))); -} - -TEST(AllOf, AllOverloadsWork) { - const char Program[] = - "struct T { };" - "int f(int, T*, int, int);" - "void g(int x) { T t; f(x, &t, 3, 4); }"; - EXPECT_TRUE(matches(Program, - callExpr(allOf(callee(functionDecl(hasName("f"))), - hasArgument(0, declRefExpr(to(varDecl()))))))); - EXPECT_TRUE(matches(Program, - callExpr(allOf(callee(functionDecl(hasName("f"))), - hasArgument(0, declRefExpr(to(varDecl()))), - hasArgument(1, hasType(pointsTo( - recordDecl(hasName("T"))))))))); - EXPECT_TRUE(matches(Program, - callExpr(allOf(callee(functionDecl(hasName("f"))), - hasArgument(0, declRefExpr(to(varDecl()))), - hasArgument(1, hasType(pointsTo( - recordDecl(hasName("T"))))), - hasArgument(2, integerLiteral(equals(3))))))); - EXPECT_TRUE(matches(Program, - callExpr(allOf(callee(functionDecl(hasName("f"))), - hasArgument(0, declRefExpr(to(varDecl()))), - hasArgument(1, hasType(pointsTo( - recordDecl(hasName("T"))))), - hasArgument(2, integerLiteral(equals(3))), - hasArgument(3, integerLiteral(equals(4))))))); -} - -TEST(ConstructVariadic, MismatchedTypes_Regression) { - EXPECT_TRUE( - matches("const int a = 0;", - internal::DynTypedMatcher::constructVariadic( - internal::DynTypedMatcher::VO_AnyOf, - ast_type_traits::ASTNodeKind::getFromNodeKind(), - {isConstQualified(), arrayType()}) - .convertTo())); -} - -TEST(DeclarationMatcher, MatchAnyOf) { - DeclarationMatcher YOrZDerivedFromX = cxxRecordDecl( - anyOf(hasName("Y"), allOf(isDerivedFrom("X"), hasName("Z")))); - EXPECT_TRUE(matches("class X {}; class Z : public X {};", YOrZDerivedFromX)); - EXPECT_TRUE(matches("class Y {};", YOrZDerivedFromX)); - EXPECT_TRUE( - notMatches("class X {}; class W : public X {};", YOrZDerivedFromX)); - EXPECT_TRUE(notMatches("class Z {};", YOrZDerivedFromX)); - - DeclarationMatcher XOrYOrZOrU = - recordDecl(anyOf(hasName("X"), hasName("Y"), hasName("Z"), hasName("U"))); - EXPECT_TRUE(matches("class X {};", XOrYOrZOrU)); - EXPECT_TRUE(notMatches("class V {};", XOrYOrZOrU)); - - DeclarationMatcher XOrYOrZOrUOrV = - recordDecl(anyOf(hasName("X"), hasName("Y"), hasName("Z"), hasName("U"), - hasName("V"))); - EXPECT_TRUE(matches("class X {};", XOrYOrZOrUOrV)); - EXPECT_TRUE(matches("class Y {};", XOrYOrZOrUOrV)); - EXPECT_TRUE(matches("class Z {};", XOrYOrZOrUOrV)); - EXPECT_TRUE(matches("class U {};", XOrYOrZOrUOrV)); - EXPECT_TRUE(matches("class V {};", XOrYOrZOrUOrV)); - EXPECT_TRUE(notMatches("class A {};", XOrYOrZOrUOrV)); - - StatementMatcher MixedTypes = stmt(anyOf(ifStmt(), binaryOperator())); - EXPECT_TRUE(matches("int F() { return 1 + 2; }", MixedTypes)); - EXPECT_TRUE(matches("int F() { if (true) return 1; }", MixedTypes)); - EXPECT_TRUE(notMatches("int F() { return 1; }", MixedTypes)); - - EXPECT_TRUE( - matches("void f() try { } catch (int) { } catch (...) { }", - cxxCatchStmt(anyOf(hasDescendant(varDecl()), isCatchAll())))); -} - -TEST(DeclarationMatcher, MatchHas) { - DeclarationMatcher HasClassX = recordDecl(has(recordDecl(hasName("X")))); - EXPECT_TRUE(matches("class Y { class X {}; };", HasClassX)); - EXPECT_TRUE(matches("class X {};", HasClassX)); - - DeclarationMatcher YHasClassX = - recordDecl(hasName("Y"), has(recordDecl(hasName("X")))); - EXPECT_TRUE(matches("class Y { class X {}; };", YHasClassX)); - EXPECT_TRUE(notMatches("class X {};", YHasClassX)); - EXPECT_TRUE( - notMatches("class Y { class Z { class X {}; }; };", YHasClassX)); -} - -TEST(DeclarationMatcher, MatchHasRecursiveAllOf) { - DeclarationMatcher Recursive = - recordDecl( - has(recordDecl( - has(recordDecl(hasName("X"))), - has(recordDecl(hasName("Y"))), - hasName("Z"))), - has(recordDecl( - has(recordDecl(hasName("A"))), - has(recordDecl(hasName("B"))), - hasName("C"))), - hasName("F")); - - EXPECT_TRUE(matches( - "class F {" - " class Z {" - " class X {};" - " class Y {};" - " };" - " class C {" - " class A {};" - " class B {};" - " };" - "};", Recursive)); - - EXPECT_TRUE(matches( - "class F {" - " class Z {" - " class A {};" - " class X {};" - " class Y {};" - " };" - " class C {" - " class X {};" - " class A {};" - " class B {};" - " };" - "};", Recursive)); - - EXPECT_TRUE(matches( - "class O1 {" - " class O2 {" - " class F {" - " class Z {" - " class A {};" - " class X {};" - " class Y {};" - " };" - " class C {" - " class X {};" - " class A {};" - " class B {};" - " };" - " };" - " };" - "};", Recursive)); -} - -TEST(DeclarationMatcher, MatchHasRecursiveAnyOf) { - DeclarationMatcher Recursive = - recordDecl( - anyOf( - has(recordDecl( - anyOf( - has(recordDecl( - hasName("X"))), - has(recordDecl( - hasName("Y"))), - hasName("Z")))), - has(recordDecl( - anyOf( - hasName("C"), - has(recordDecl( - hasName("A"))), - has(recordDecl( - hasName("B")))))), - hasName("F"))); - - EXPECT_TRUE(matches("class F {};", Recursive)); - EXPECT_TRUE(matches("class Z {};", Recursive)); - EXPECT_TRUE(matches("class C {};", Recursive)); - EXPECT_TRUE(matches("class M { class N { class X {}; }; };", Recursive)); - EXPECT_TRUE(matches("class M { class N { class B {}; }; };", Recursive)); - EXPECT_TRUE( - matches("class O1 { class O2 {" - " class M { class N { class B {}; }; }; " - "}; };", Recursive)); -} - -TEST(DeclarationMatcher, MatchNot) { - DeclarationMatcher NotClassX = - cxxRecordDecl( - isDerivedFrom("Y"), - unless(hasName("X"))); - EXPECT_TRUE(notMatches("", NotClassX)); - EXPECT_TRUE(notMatches("class Y {};", NotClassX)); - EXPECT_TRUE(matches("class Y {}; class Z : public Y {};", NotClassX)); - EXPECT_TRUE(notMatches("class Y {}; class X : public Y {};", NotClassX)); - EXPECT_TRUE( - notMatches("class Y {}; class Z {}; class X : public Y {};", - NotClassX)); - - DeclarationMatcher ClassXHasNotClassY = - recordDecl( - hasName("X"), - has(recordDecl(hasName("Z"))), - unless( - has(recordDecl(hasName("Y"))))); - EXPECT_TRUE(matches("class X { class Z {}; };", ClassXHasNotClassY)); - EXPECT_TRUE(notMatches("class X { class Y {}; class Z {}; };", - ClassXHasNotClassY)); - - DeclarationMatcher NamedNotRecord = - namedDecl(hasName("Foo"), unless(recordDecl())); - EXPECT_TRUE(matches("void Foo(){}", NamedNotRecord)); - EXPECT_TRUE(notMatches("struct Foo {};", NamedNotRecord)); -} - -TEST(DeclarationMatcher, HasDescendant) { - DeclarationMatcher ZDescendantClassX = - recordDecl( - hasDescendant(recordDecl(hasName("X"))), - hasName("Z")); - EXPECT_TRUE(matches("class Z { class X {}; };", ZDescendantClassX)); - EXPECT_TRUE( - matches("class Z { class Y { class X {}; }; };", ZDescendantClassX)); - EXPECT_TRUE( - matches("class Z { class A { class Y { class X {}; }; }; };", - ZDescendantClassX)); - EXPECT_TRUE( - matches("class Z { class A { class B { class Y { class X {}; }; }; }; };", - ZDescendantClassX)); - EXPECT_TRUE(notMatches("class Z {};", ZDescendantClassX)); - - DeclarationMatcher ZDescendantClassXHasClassY = - recordDecl( - hasDescendant(recordDecl(has(recordDecl(hasName("Y"))), - hasName("X"))), - hasName("Z")); - EXPECT_TRUE(matches("class Z { class X { class Y {}; }; };", - ZDescendantClassXHasClassY)); - EXPECT_TRUE( - matches("class Z { class A { class B { class X { class Y {}; }; }; }; };", - ZDescendantClassXHasClassY)); - EXPECT_TRUE(notMatches( - "class Z {" - " class A {" - " class B {" - " class X {" - " class C {" - " class Y {};" - " };" - " };" - " }; " - " };" - "};", ZDescendantClassXHasClassY)); - - DeclarationMatcher ZDescendantClassXDescendantClassY = - recordDecl( - hasDescendant(recordDecl(hasDescendant(recordDecl(hasName("Y"))), - hasName("X"))), - hasName("Z")); - EXPECT_TRUE( - matches("class Z { class A { class X { class B { class Y {}; }; }; }; };", - ZDescendantClassXDescendantClassY)); - EXPECT_TRUE(matches( - "class Z {" - " class A {" - " class X {" - " class B {" - " class Y {};" - " };" - " class Y {};" - " };" - " };" - "};", ZDescendantClassXDescendantClassY)); -} - -TEST(DeclarationMatcher, HasDescendantMemoization) { - DeclarationMatcher CannotMemoize = - decl(hasDescendant(typeLoc().bind("x")), has(decl())); - EXPECT_TRUE(matches("void f() { int i; }", CannotMemoize)); -} - -TEST(DeclarationMatcher, HasDescendantMemoizationUsesRestrictKind) { - auto Name = hasName("i"); - auto VD = internal::Matcher(Name).dynCastTo(); - auto RD = internal::Matcher(Name).dynCastTo(); - // Matching VD first should not make a cache hit for RD. - EXPECT_TRUE(notMatches("void f() { int i; }", - decl(hasDescendant(VD), hasDescendant(RD)))); - EXPECT_TRUE(notMatches("void f() { int i; }", - decl(hasDescendant(RD), hasDescendant(VD)))); - // Not matching RD first should not make a cache hit for VD either. - EXPECT_TRUE(matches("void f() { int i; }", - decl(anyOf(hasDescendant(RD), hasDescendant(VD))))); -} - -TEST(DeclarationMatcher, HasAncestorMemoization) { - // This triggers an hasAncestor with a TemplateArgument in the bound nodes. - // That node can't be memoized so we have to check for it before trying to put - // it on the cache. - DeclarationMatcher CannotMemoize = classTemplateSpecializationDecl( - hasAnyTemplateArgument(templateArgument().bind("targ")), - forEach(fieldDecl(hasAncestor(forStmt())))); - - EXPECT_TRUE(notMatches("template struct S;" - "template <> struct S{ int i; int j; };", - CannotMemoize)); -} - -TEST(DeclarationMatcher, HasAttr) { - EXPECT_TRUE(matches("struct __attribute__((warn_unused)) X {};", - decl(hasAttr(clang::attr::WarnUnused)))); - EXPECT_FALSE(matches("struct X {};", - decl(hasAttr(clang::attr::WarnUnused)))); -} - -TEST(DeclarationMatcher, MatchCudaDecl) { - EXPECT_TRUE(matchesWithCuda("__global__ void f() { }" - "void g() { f<<<1, 2>>>(); }", - cudaKernelCallExpr())); - EXPECT_TRUE(matchesWithCuda("__attribute__((device)) void f() {}", - hasAttr(clang::attr::CUDADevice))); - EXPECT_TRUE(notMatchesWithCuda("void f() {}", - cudaKernelCallExpr())); - EXPECT_FALSE(notMatchesWithCuda("__attribute__((global)) void f() {}", - hasAttr(clang::attr::CUDAGlobal))); -} - -// Implements a run method that returns whether BoundNodes contains a -// Decl bound to Id that can be dynamically cast to T. -// Optionally checks that the check succeeded a specific number of times. -template -class VerifyIdIsBoundTo : public BoundNodesCallback { -public: - // Create an object that checks that a node of type \c T was bound to \c Id. - // Does not check for a certain number of matches. - explicit VerifyIdIsBoundTo(llvm::StringRef Id) - : Id(Id), ExpectedCount(-1), Count(0) {} - - // Create an object that checks that a node of type \c T was bound to \c Id. - // Checks that there were exactly \c ExpectedCount matches. - VerifyIdIsBoundTo(llvm::StringRef Id, int ExpectedCount) - : Id(Id), ExpectedCount(ExpectedCount), Count(0) {} - - // Create an object that checks that a node of type \c T was bound to \c Id. - // Checks that there was exactly one match with the name \c ExpectedName. - // Note that \c T must be a NamedDecl for this to work. - VerifyIdIsBoundTo(llvm::StringRef Id, llvm::StringRef ExpectedName, - int ExpectedCount = 1) - : Id(Id), ExpectedCount(ExpectedCount), Count(0), - ExpectedName(ExpectedName) {} - - void onEndOfTranslationUnit() override { - if (ExpectedCount != -1) - EXPECT_EQ(ExpectedCount, Count); - if (!ExpectedName.empty()) - EXPECT_EQ(ExpectedName, Name); - Count = 0; - Name.clear(); - } - - ~VerifyIdIsBoundTo() override { - EXPECT_EQ(0, Count); - EXPECT_EQ("", Name); - } - - bool run(const BoundNodes *Nodes) override { - const BoundNodes::IDToNodeMap &M = Nodes->getMap(); - if (Nodes->getNodeAs(Id)) { - ++Count; - if (const NamedDecl *Named = Nodes->getNodeAs(Id)) { - Name = Named->getNameAsString(); - } else if (const NestedNameSpecifier *NNS = - Nodes->getNodeAs(Id)) { - llvm::raw_string_ostream OS(Name); - NNS->print(OS, PrintingPolicy(LangOptions())); - } - BoundNodes::IDToNodeMap::const_iterator I = M.find(Id); - EXPECT_NE(M.end(), I); - if (I != M.end()) - EXPECT_EQ(Nodes->getNodeAs(Id), I->second.get()); - return true; - } - EXPECT_TRUE(M.count(Id) == 0 || - M.find(Id)->second.template get() == nullptr); - return false; - } - - bool run(const BoundNodes *Nodes, ASTContext *Context) override { - return run(Nodes); - } - -private: - const std::string Id; - const int ExpectedCount; - int Count; - const std::string ExpectedName; - std::string Name; -}; - -TEST(HasDescendant, MatchesDescendantTypes) { - EXPECT_TRUE(matches("void f() { int i = 3; }", - decl(hasDescendant(loc(builtinType()))))); - EXPECT_TRUE(matches("void f() { int i = 3; }", - stmt(hasDescendant(builtinType())))); - - EXPECT_TRUE(matches("void f() { int i = 3; }", - stmt(hasDescendant(loc(builtinType()))))); - EXPECT_TRUE(matches("void f() { int i = 3; }", - stmt(hasDescendant(qualType(builtinType()))))); - - EXPECT_TRUE(notMatches("void f() { float f = 2.0f; }", - stmt(hasDescendant(isInteger())))); - - EXPECT_TRUE(matchAndVerifyResultTrue( - "void f() { int a; float c; int d; int e; }", - functionDecl(forEachDescendant( - varDecl(hasDescendant(isInteger())).bind("x"))), - llvm::make_unique>("x", 3))); -} - -TEST(HasDescendant, MatchesDescendantsOfTypes) { - EXPECT_TRUE(matches("void f() { int*** i; }", - qualType(hasDescendant(builtinType())))); - EXPECT_TRUE(matches("void f() { int*** i; }", - qualType(hasDescendant( - pointerType(pointee(builtinType())))))); - EXPECT_TRUE(matches("void f() { int*** i; }", - typeLoc(hasDescendant(loc(builtinType()))))); - - EXPECT_TRUE(matchAndVerifyResultTrue( - "void f() { int*** i; }", - qualType(asString("int ***"), forEachDescendant(pointerType().bind("x"))), - llvm::make_unique>("x", 2))); -} - -TEST(Has, MatchesChildrenOfTypes) { - EXPECT_TRUE(matches("int i;", - varDecl(hasName("i"), has(isInteger())))); - EXPECT_TRUE(notMatches("int** i;", - varDecl(hasName("i"), has(isInteger())))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "int (*f)(float, int);", - qualType(functionType(), forEach(qualType(isInteger()).bind("x"))), - llvm::make_unique>("x", 2))); -} - -TEST(Has, MatchesChildTypes) { - EXPECT_TRUE(matches( - "int* i;", - varDecl(hasName("i"), hasType(qualType(has(builtinType())))))); - EXPECT_TRUE(notMatches( - "int* i;", - varDecl(hasName("i"), hasType(qualType(has(pointerType())))))); -} - -TEST(ValueDecl, Matches) { - EXPECT_TRUE(matches("enum EnumType { EnumValue };", - valueDecl(hasType(asString("enum EnumType"))))); - EXPECT_TRUE(matches("void FunctionDecl();", - valueDecl(hasType(asString("void (void)"))))); -} - -TEST(Enum, DoesNotMatchClasses) { - EXPECT_TRUE(notMatches("class X {};", enumDecl(hasName("X")))); -} - -TEST(Enum, MatchesEnums) { - EXPECT_TRUE(matches("enum X {};", enumDecl(hasName("X")))); -} - -TEST(EnumConstant, Matches) { - DeclarationMatcher Matcher = enumConstantDecl(hasName("A")); - EXPECT_TRUE(matches("enum X{ A };", Matcher)); - EXPECT_TRUE(notMatches("enum X{ B };", Matcher)); - EXPECT_TRUE(notMatches("enum X {};", Matcher)); -} - -TEST(StatementMatcher, Has) { - StatementMatcher HasVariableI = - expr(hasType(pointsTo(recordDecl(hasName("X")))), - has(declRefExpr(to(varDecl(hasName("i")))))); - - EXPECT_TRUE(matches( - "class X; X *x(int); void c() { int i; x(i); }", HasVariableI)); - EXPECT_TRUE(notMatches( - "class X; X *x(int); void c() { int i; x(42); }", HasVariableI)); -} - -TEST(StatementMatcher, HasDescendant) { - StatementMatcher HasDescendantVariableI = - expr(hasType(pointsTo(recordDecl(hasName("X")))), - hasDescendant(declRefExpr(to(varDecl(hasName("i")))))); - - EXPECT_TRUE(matches( - "class X; X *x(bool); bool b(int); void c() { int i; x(b(i)); }", - HasDescendantVariableI)); - EXPECT_TRUE(notMatches( - "class X; X *x(bool); bool b(int); void c() { int i; x(b(42)); }", - HasDescendantVariableI)); -} - -TEST(TypeMatcher, MatchesClassType) { - TypeMatcher TypeA = hasDeclaration(recordDecl(hasName("A"))); - - EXPECT_TRUE(matches("class A { public: A *a; };", TypeA)); - EXPECT_TRUE(notMatches("class A {};", TypeA)); - - TypeMatcher TypeDerivedFromA = - hasDeclaration(cxxRecordDecl(isDerivedFrom("A"))); - - EXPECT_TRUE(matches("class A {}; class B : public A { public: B *b; };", - TypeDerivedFromA)); - EXPECT_TRUE(notMatches("class A {};", TypeA)); - - TypeMatcher TypeAHasClassB = hasDeclaration( - recordDecl(hasName("A"), has(recordDecl(hasName("B"))))); - - EXPECT_TRUE( - matches("class A { public: A *a; class B {}; };", TypeAHasClassB)); - - EXPECT_TRUE(matchesC("struct S {}; void f(void) { struct S s; }", - varDecl(hasType(namedDecl(hasName("S")))))); -} - -TEST(TypeMatcher, MatchesDeclTypes) { - // TypedefType -> TypedefNameDecl - EXPECT_TRUE(matches("typedef int I; void f(I i);", - parmVarDecl(hasType(namedDecl(hasName("I")))))); - // ObjCObjectPointerType - EXPECT_TRUE(matchesObjC("@interface Foo @end void f(Foo *f);", - parmVarDecl(hasType(objcObjectPointerType())))); - // ObjCObjectPointerType -> ObjCInterfaceType -> ObjCInterfaceDecl - EXPECT_TRUE(matchesObjC( - "@interface Foo @end void f(Foo *f);", - parmVarDecl(hasType(pointsTo(objcInterfaceDecl(hasName("Foo"))))))); - // TemplateTypeParmType - EXPECT_TRUE(matches("template void f(T t);", - parmVarDecl(hasType(templateTypeParmType())))); - // TemplateTypeParmType -> TemplateTypeParmDecl - EXPECT_TRUE(matches("template void f(T t);", - parmVarDecl(hasType(namedDecl(hasName("T")))))); - // InjectedClassNameType - EXPECT_TRUE(matches("template struct S {" - " void f(S s);" - "};", - parmVarDecl(hasType(injectedClassNameType())))); - EXPECT_TRUE(notMatches("template struct S {" - " void g(S s);" - "};", - parmVarDecl(hasType(injectedClassNameType())))); - // InjectedClassNameType -> CXXRecordDecl - EXPECT_TRUE(matches("template struct S {" - " void f(S s);" - "};", - parmVarDecl(hasType(namedDecl(hasName("S")))))); - - static const char Using[] = "template " - "struct Base {" - " typedef T Foo;" - "};" - "" - "template " - "struct S : private Base {" - " using typename Base::Foo;" - " void f(Foo);" - "};"; - // UnresolvedUsingTypenameDecl - EXPECT_TRUE(matches(Using, unresolvedUsingTypenameDecl(hasName("Foo")))); - // UnresolvedUsingTypenameType -> UnresolvedUsingTypenameDecl - EXPECT_TRUE(matches(Using, parmVarDecl(hasType(namedDecl(hasName("Foo")))))); -} - -TEST(Matcher, BindMatchedNodes) { - DeclarationMatcher ClassX = has(recordDecl(hasName("::X")).bind("x")); - - EXPECT_TRUE(matchAndVerifyResultTrue("class X {};", - ClassX, llvm::make_unique>("x"))); - - EXPECT_TRUE(matchAndVerifyResultFalse("class X {};", - ClassX, llvm::make_unique>("other-id"))); - - TypeMatcher TypeAHasClassB = hasDeclaration( - recordDecl(hasName("A"), has(recordDecl(hasName("B")).bind("b")))); - - EXPECT_TRUE(matchAndVerifyResultTrue("class A { public: A *a; class B {}; };", - TypeAHasClassB, - llvm::make_unique>("b"))); - - StatementMatcher MethodX = - callExpr(callee(cxxMethodDecl(hasName("x")))).bind("x"); - - EXPECT_TRUE(matchAndVerifyResultTrue("class A { void x() { x(); } };", - MethodX, - llvm::make_unique>("x"))); -} - -TEST(Matcher, BindTheSameNameInAlternatives) { - StatementMatcher matcher = anyOf( - binaryOperator(hasOperatorName("+"), - hasLHS(expr().bind("x")), - hasRHS(integerLiteral(equals(0)))), - binaryOperator(hasOperatorName("+"), - hasLHS(integerLiteral(equals(0))), - hasRHS(expr().bind("x")))); - - EXPECT_TRUE(matchAndVerifyResultTrue( - // The first branch of the matcher binds x to 0 but then fails. - // The second branch binds x to f() and succeeds. - "int f() { return 0 + f(); }", - matcher, - llvm::make_unique>("x"))); -} - -TEST(Matcher, BindsIDForMemoizedResults) { - // Using the same matcher in two match expressions will make memoization - // kick in. - DeclarationMatcher ClassX = recordDecl(hasName("X")).bind("x"); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A { class B { class X {}; }; };", - DeclarationMatcher(anyOf( - recordDecl(hasName("A"), hasDescendant(ClassX)), - recordDecl(hasName("B"), hasDescendant(ClassX)))), - llvm::make_unique>("x", 2))); -} - -TEST(HasDeclaration, HasDeclarationOfEnumType) { - EXPECT_TRUE(matches("enum X {}; void y(X *x) { x; }", - expr(hasType(pointsTo( - qualType(hasDeclaration(enumDecl(hasName("X"))))))))); -} - -TEST(HasDeclaration, HasGetDeclTraitTest) { - EXPECT_TRUE(internal::has_getDecl::value); - EXPECT_TRUE(internal::has_getDecl::value); - EXPECT_FALSE(internal::has_getDecl::value); -} - -TEST(HasDeclaration, HasDeclarationOfTypeWithDecl) { - EXPECT_TRUE(matches("typedef int X; X a;", - varDecl(hasName("a"), - hasType(typedefType(hasDeclaration(decl())))))); - - // FIXME: Add tests for other types with getDecl() (e.g. RecordType) -} - -TEST(HasDeclaration, HasDeclarationOfTemplateSpecializationType) { - EXPECT_TRUE(matches("template class A {}; A a;", - varDecl(hasType(templateSpecializationType( - hasDeclaration(namedDecl(hasName("A")))))))); -} - -TEST(HasType, TakesQualTypeMatcherAndMatchesExpr) { - TypeMatcher ClassX = hasDeclaration(recordDecl(hasName("X"))); - EXPECT_TRUE( - matches("class X {}; void y(X &x) { x; }", expr(hasType(ClassX)))); - EXPECT_TRUE( - notMatches("class X {}; void y(X *x) { x; }", - expr(hasType(ClassX)))); - EXPECT_TRUE( - matches("class X {}; void y(X *x) { x; }", - expr(hasType(pointsTo(ClassX))))); -} - -TEST(HasType, TakesQualTypeMatcherAndMatchesValueDecl) { - TypeMatcher ClassX = hasDeclaration(recordDecl(hasName("X"))); - EXPECT_TRUE( - matches("class X {}; void y() { X x; }", varDecl(hasType(ClassX)))); - EXPECT_TRUE( - notMatches("class X {}; void y() { X *x; }", varDecl(hasType(ClassX)))); - EXPECT_TRUE( - matches("class X {}; void y() { X *x; }", - varDecl(hasType(pointsTo(ClassX))))); -} - -TEST(HasType, TakesDeclMatcherAndMatchesExpr) { - DeclarationMatcher ClassX = recordDecl(hasName("X")); - EXPECT_TRUE( - matches("class X {}; void y(X &x) { x; }", expr(hasType(ClassX)))); - EXPECT_TRUE( - notMatches("class X {}; void y(X *x) { x; }", - expr(hasType(ClassX)))); -} - -TEST(HasType, TakesDeclMatcherAndMatchesValueDecl) { - DeclarationMatcher ClassX = recordDecl(hasName("X")); - EXPECT_TRUE( - matches("class X {}; void y() { X x; }", varDecl(hasType(ClassX)))); - EXPECT_TRUE( - notMatches("class X {}; void y() { X *x; }", varDecl(hasType(ClassX)))); -} - -TEST(HasType, MatchesTypedefDecl) { - EXPECT_TRUE(matches("typedef int X;", typedefDecl(hasType(asString("int"))))); - EXPECT_TRUE(matches("typedef const int T;", - typedefDecl(hasType(asString("const int"))))); - EXPECT_TRUE(notMatches("typedef const int T;", - typedefDecl(hasType(asString("int"))))); - EXPECT_TRUE(matches("typedef int foo; typedef foo bar;", - typedefDecl(hasType(asString("foo")), hasName("bar")))); -} - -TEST(HasType, MatchesTypedefNameDecl) { - EXPECT_TRUE(matches("using X = int;", typedefNameDecl(hasType(asString("int"))))); - EXPECT_TRUE(matches("using T = const int;", - typedefNameDecl(hasType(asString("const int"))))); - EXPECT_TRUE(notMatches("using T = const int;", - typedefNameDecl(hasType(asString("int"))))); - EXPECT_TRUE(matches("using foo = int; using bar = foo;", - typedefNameDecl(hasType(asString("foo")), hasName("bar")))); -} - -TEST(HasTypeLoc, MatchesDeclaratorDecls) { - EXPECT_TRUE(matches("int x;", - varDecl(hasName("x"), hasTypeLoc(loc(asString("int")))))); - - // Make sure we don't crash on implicit constructors. - EXPECT_TRUE(notMatches("class X {}; X x;", - declaratorDecl(hasTypeLoc(loc(asString("int")))))); -} - -TEST(Matcher, Call) { - // FIXME: Do we want to overload Call() to directly take - // Matcher, too? - StatementMatcher MethodX = - callExpr(hasDeclaration(cxxMethodDecl(hasName("x")))); - - EXPECT_TRUE(matches("class Y { void x() { x(); } };", MethodX)); - EXPECT_TRUE(notMatches("class Y { void x() {} };", MethodX)); - - StatementMatcher MethodOnY = - cxxMemberCallExpr(on(hasType(recordDecl(hasName("Y"))))); - - EXPECT_TRUE( - matches("class Y { public: void x(); }; void z() { Y y; y.x(); }", - MethodOnY)); - EXPECT_TRUE( - matches("class Y { public: void x(); }; void z(Y &y) { y.x(); }", - MethodOnY)); - EXPECT_TRUE( - notMatches("class Y { public: void x(); }; void z(Y *&y) { y->x(); }", - MethodOnY)); - EXPECT_TRUE( - notMatches("class Y { public: void x(); }; void z(Y y[]) { y->x(); }", - MethodOnY)); - EXPECT_TRUE( - notMatches("class Y { public: void x(); }; void z() { Y *y; y->x(); }", - MethodOnY)); - - StatementMatcher MethodOnYPointer = - cxxMemberCallExpr(on(hasType(pointsTo(recordDecl(hasName("Y")))))); - - EXPECT_TRUE( - matches("class Y { public: void x(); }; void z() { Y *y; y->x(); }", - MethodOnYPointer)); - EXPECT_TRUE( - matches("class Y { public: void x(); }; void z(Y *&y) { y->x(); }", - MethodOnYPointer)); - EXPECT_TRUE( - matches("class Y { public: void x(); }; void z(Y y[]) { y->x(); }", - MethodOnYPointer)); - EXPECT_TRUE( - notMatches("class Y { public: void x(); }; void z() { Y y; y.x(); }", - MethodOnYPointer)); - EXPECT_TRUE( - notMatches("class Y { public: void x(); }; void z(Y &y) { y.x(); }", - MethodOnYPointer)); -} - -TEST(Matcher, Lambda) { - EXPECT_TRUE(matches("auto f = [] (int i) { return i; };", - lambdaExpr())); -} - -TEST(Matcher, ForRange) { - EXPECT_TRUE(matches("int as[] = { 1, 2, 3 };" - "void f() { for (auto &a : as); }", - cxxForRangeStmt())); - EXPECT_TRUE(notMatches("void f() { for (int i; i<5; ++i); }", - cxxForRangeStmt())); -} - -TEST(Matcher, SubstNonTypeTemplateParm) { - EXPECT_FALSE(matches("template\n" - "struct A { static const int n = 0; };\n" - "struct B : public A<42> {};", - substNonTypeTemplateParmExpr())); - EXPECT_TRUE(matches("template\n" - "struct A { static const int n = N; };\n" - "struct B : public A<42> {};", - substNonTypeTemplateParmExpr())); -} - -TEST(Matcher, NonTypeTemplateParmDecl) { - EXPECT_TRUE(matches("template void f();", - nonTypeTemplateParmDecl(hasName("N")))); - EXPECT_TRUE( - notMatches("template void f();", nonTypeTemplateParmDecl())); -} - -TEST(Matcher, templateTypeParmDecl) { - EXPECT_TRUE(matches("template void f();", - templateTypeParmDecl(hasName("T")))); - EXPECT_TRUE( - notMatches("template void f();", templateTypeParmDecl())); -} - -TEST(Matcher, UserDefinedLiteral) { - EXPECT_TRUE(matches("constexpr char operator \"\" _inc (const char i) {" - " return i + 1;" - "}" - "char c = 'a'_inc;", - userDefinedLiteral())); -} - -TEST(Matcher, FlowControl) { - EXPECT_TRUE(matches("void f() { while(true) { break; } }", breakStmt())); - EXPECT_TRUE(matches("void f() { while(true) { continue; } }", - continueStmt())); - EXPECT_TRUE(matches("void f() { goto FOO; FOO: ;}", gotoStmt())); - EXPECT_TRUE(matches("void f() { goto FOO; FOO: ;}", - labelStmt( - hasDeclaration( - labelDecl(hasName("FOO")))))); - EXPECT_TRUE(matches("void f() { FOO: ; void *ptr = &&FOO; goto *ptr; }", - addrLabelExpr())); - EXPECT_TRUE(matches("void f() { return; }", returnStmt())); -} - -TEST(HasType, MatchesAsString) { - EXPECT_TRUE( - matches("class Y { public: void x(); }; void z() {Y* y; y->x(); }", - cxxMemberCallExpr(on(hasType(asString("class Y *")))))); - EXPECT_TRUE( - matches("class X { void x(int x) {} };", - cxxMethodDecl(hasParameter(0, hasType(asString("int")))))); - EXPECT_TRUE(matches("namespace ns { struct A {}; } struct B { ns::A a; };", - fieldDecl(hasType(asString("ns::A"))))); - EXPECT_TRUE(matches("namespace { struct A {}; } struct B { A a; };", - fieldDecl(hasType(asString("struct (anonymous namespace)::A"))))); -} - -TEST(Matcher, OverloadedOperatorCall) { - StatementMatcher OpCall = cxxOperatorCallExpr(); - // Unary operator - EXPECT_TRUE(matches("class Y { }; " - "bool operator!(Y x) { return false; }; " - "Y y; bool c = !y;", OpCall)); - // No match -- special operators like "new", "delete" - // FIXME: operator new takes size_t, for which we need stddef.h, for which - // we need to figure out include paths in the test. - // EXPECT_TRUE(NotMatches("#include \n" - // "class Y { }; " - // "void *operator new(size_t size) { return 0; } " - // "Y *y = new Y;", OpCall)); - EXPECT_TRUE(notMatches("class Y { }; " - "void operator delete(void *p) { } " - "void a() {Y *y = new Y; delete y;}", OpCall)); - // Binary operator - EXPECT_TRUE(matches("class Y { }; " - "bool operator&&(Y x, Y y) { return true; }; " - "Y a; Y b; bool c = a && b;", - OpCall)); - // No match -- normal operator, not an overloaded one. - EXPECT_TRUE(notMatches("bool x = true, y = true; bool t = x && y;", OpCall)); - EXPECT_TRUE(notMatches("int t = 5 << 2;", OpCall)); -} - -TEST(Matcher, HasOperatorNameForOverloadedOperatorCall) { - StatementMatcher OpCallAndAnd = - cxxOperatorCallExpr(hasOverloadedOperatorName("&&")); - EXPECT_TRUE(matches("class Y { }; " - "bool operator&&(Y x, Y y) { return true; }; " - "Y a; Y b; bool c = a && b;", OpCallAndAnd)); - StatementMatcher OpCallLessLess = - cxxOperatorCallExpr(hasOverloadedOperatorName("<<")); - EXPECT_TRUE(notMatches("class Y { }; " - "bool operator&&(Y x, Y y) { return true; }; " - "Y a; Y b; bool c = a && b;", - OpCallLessLess)); - StatementMatcher OpStarCall = - cxxOperatorCallExpr(hasOverloadedOperatorName("*")); - EXPECT_TRUE(matches("class Y; int operator*(Y &); void f(Y &y) { *y; }", - OpStarCall)); - DeclarationMatcher ClassWithOpStar = - cxxRecordDecl(hasMethod(hasOverloadedOperatorName("*"))); - EXPECT_TRUE(matches("class Y { int operator*(); };", - ClassWithOpStar)); - EXPECT_TRUE(notMatches("class Y { void myOperator(); };", - ClassWithOpStar)) ; - DeclarationMatcher AnyOpStar = functionDecl(hasOverloadedOperatorName("*")); - EXPECT_TRUE(matches("class Y; int operator*(Y &);", AnyOpStar)); - EXPECT_TRUE(matches("class Y { int operator*(); };", AnyOpStar)); -} - -TEST(Matcher, NestedOverloadedOperatorCalls) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class Y { }; " - "Y& operator&&(Y& x, Y& y) { return x; }; " - "Y a; Y b; Y c; Y d = a && b && c;", - cxxOperatorCallExpr(hasOverloadedOperatorName("&&")).bind("x"), - llvm::make_unique>("x", 2))); - EXPECT_TRUE(matches("class Y { }; " - "Y& operator&&(Y& x, Y& y) { return x; }; " - "Y a; Y b; Y c; Y d = a && b && c;", - cxxOperatorCallExpr(hasParent(cxxOperatorCallExpr())))); - EXPECT_TRUE( - matches("class Y { }; " - "Y& operator&&(Y& x, Y& y) { return x; }; " - "Y a; Y b; Y c; Y d = a && b && c;", - cxxOperatorCallExpr(hasDescendant(cxxOperatorCallExpr())))); -} - -TEST(Matcher, ThisPointerType) { - StatementMatcher MethodOnY = - cxxMemberCallExpr(thisPointerType(recordDecl(hasName("Y")))); - - EXPECT_TRUE( - matches("class Y { public: void x(); }; void z() { Y y; y.x(); }", - MethodOnY)); - EXPECT_TRUE( - matches("class Y { public: void x(); }; void z(Y &y) { y.x(); }", - MethodOnY)); - EXPECT_TRUE( - matches("class Y { public: void x(); }; void z(Y *&y) { y->x(); }", - MethodOnY)); - EXPECT_TRUE( - matches("class Y { public: void x(); }; void z(Y y[]) { y->x(); }", - MethodOnY)); - EXPECT_TRUE( - matches("class Y { public: void x(); }; void z() { Y *y; y->x(); }", - MethodOnY)); - - EXPECT_TRUE(matches( - "class Y {" - " public: virtual void x();" - "};" - "class X : public Y {" - " public: virtual void x();" - "};" - "void z() { X *x; x->Y::x(); }", MethodOnY)); -} - -TEST(Matcher, VariableUsage) { - StatementMatcher Reference = - declRefExpr(to( - varDecl(hasInitializer( - cxxMemberCallExpr(thisPointerType(recordDecl(hasName("Y")))))))); - - EXPECT_TRUE(matches( - "class Y {" - " public:" - " bool x() const;" - "};" - "void z(const Y &y) {" - " bool b = y.x();" - " if (b) {}" - "}", Reference)); - - EXPECT_TRUE(notMatches( - "class Y {" - " public:" - " bool x() const;" - "};" - "void z(const Y &y) {" - " bool b = y.x();" - "}", Reference)); -} - -TEST(Matcher, VarDecl_Storage) { - auto M = varDecl(hasName("X"), hasLocalStorage()); - EXPECT_TRUE(matches("void f() { int X; }", M)); - EXPECT_TRUE(notMatches("int X;", M)); - EXPECT_TRUE(notMatches("void f() { static int X; }", M)); - - M = varDecl(hasName("X"), hasGlobalStorage()); - EXPECT_TRUE(notMatches("void f() { int X; }", M)); - EXPECT_TRUE(matches("int X;", M)); - EXPECT_TRUE(matches("void f() { static int X; }", M)); -} - -TEST(Matcher, VarDecl_StorageDuration) { - std::string T = - "void f() { int x; static int y; } int a;"; - - EXPECT_TRUE(matches(T, varDecl(hasName("x"), hasAutomaticStorageDuration()))); - EXPECT_TRUE( - notMatches(T, varDecl(hasName("y"), hasAutomaticStorageDuration()))); - EXPECT_TRUE( - notMatches(T, varDecl(hasName("a"), hasAutomaticStorageDuration()))); - - EXPECT_TRUE(matches(T, varDecl(hasName("y"), hasStaticStorageDuration()))); - EXPECT_TRUE(matches(T, varDecl(hasName("a"), hasStaticStorageDuration()))); - EXPECT_TRUE(notMatches(T, varDecl(hasName("x"), hasStaticStorageDuration()))); - - // FIXME: It is really hard to test with thread_local itself because not all - // targets support TLS, which causes this to be an error depending on what - // platform the test is being run on. We do not have access to the TargetInfo - // object to be able to test whether the platform supports TLS or not. - EXPECT_TRUE(notMatches(T, varDecl(hasName("x"), hasThreadStorageDuration()))); - EXPECT_TRUE(notMatches(T, varDecl(hasName("y"), hasThreadStorageDuration()))); - EXPECT_TRUE(notMatches(T, varDecl(hasName("a"), hasThreadStorageDuration()))); -} - -TEST(Matcher, FindsVarDeclInFunctionParameter) { - EXPECT_TRUE(matches( - "void f(int i) {}", - varDecl(hasName("i")))); -} - -TEST(Matcher, CalledVariable) { - StatementMatcher CallOnVariableY = - cxxMemberCallExpr(on(declRefExpr(to(varDecl(hasName("y")))))); - - EXPECT_TRUE(matches( - "class Y { public: void x() { Y y; y.x(); } };", CallOnVariableY)); - EXPECT_TRUE(matches( - "class Y { public: void x() const { Y y; y.x(); } };", CallOnVariableY)); - EXPECT_TRUE(matches( - "class Y { public: void x(); };" - "class X : public Y { void z() { X y; y.x(); } };", CallOnVariableY)); - EXPECT_TRUE(matches( - "class Y { public: void x(); };" - "class X : public Y { void z() { X *y; y->x(); } };", CallOnVariableY)); - EXPECT_TRUE(notMatches( - "class Y { public: void x(); };" - "class X : public Y { void z() { unsigned long y; ((X*)y)->x(); } };", - CallOnVariableY)); -} - -TEST(UnaryExprOrTypeTraitExpr, MatchesSizeOfAndAlignOf) { - EXPECT_TRUE(matches("void x() { int a = sizeof(a); }", - unaryExprOrTypeTraitExpr())); - EXPECT_TRUE(notMatches("void x() { int a = sizeof(a); }", - alignOfExpr(anything()))); - // FIXME: Uncomment once alignof is enabled. - // EXPECT_TRUE(matches("void x() { int a = alignof(a); }", - // unaryExprOrTypeTraitExpr())); - // EXPECT_TRUE(notMatches("void x() { int a = alignof(a); }", - // sizeOfExpr())); -} - -TEST(UnaryExpressionOrTypeTraitExpression, MatchesCorrectType) { - EXPECT_TRUE(matches("void x() { int a = sizeof(a); }", sizeOfExpr( - hasArgumentOfType(asString("int"))))); - EXPECT_TRUE(notMatches("void x() { int a = sizeof(a); }", sizeOfExpr( - hasArgumentOfType(asString("float"))))); - EXPECT_TRUE(matches( - "struct A {}; void x() { A a; int b = sizeof(a); }", - sizeOfExpr(hasArgumentOfType(hasDeclaration(recordDecl(hasName("A"))))))); - EXPECT_TRUE(notMatches("void x() { int a = sizeof(a); }", sizeOfExpr( - hasArgumentOfType(hasDeclaration(recordDecl(hasName("string"))))))); -} - -TEST(MemberExpression, DoesNotMatchClasses) { - EXPECT_TRUE(notMatches("class Y { void x() {} };", memberExpr())); -} - -TEST(MemberExpression, MatchesMemberFunctionCall) { - EXPECT_TRUE(matches("class Y { void x() { x(); } };", memberExpr())); -} - -TEST(MemberExpression, MatchesVariable) { - EXPECT_TRUE( - matches("class Y { void x() { this->y; } int y; };", memberExpr())); - EXPECT_TRUE( - matches("class Y { void x() { y; } int y; };", memberExpr())); - EXPECT_TRUE( - matches("class Y { void x() { Y y; y.y; } int y; };", memberExpr())); -} - -TEST(MemberExpression, MatchesStaticVariable) { - EXPECT_TRUE(matches("class Y { void x() { this->y; } static int y; };", - memberExpr())); - EXPECT_TRUE(notMatches("class Y { void x() { y; } static int y; };", - memberExpr())); - EXPECT_TRUE(notMatches("class Y { void x() { Y::y; } static int y; };", - memberExpr())); -} - -TEST(IsInteger, MatchesIntegers) { - EXPECT_TRUE(matches("int i = 0;", varDecl(hasType(isInteger())))); - EXPECT_TRUE(matches( - "long long i = 0; void f(long long) { }; void g() {f(i);}", - callExpr(hasArgument(0, declRefExpr( - to(varDecl(hasType(isInteger())))))))); -} - -TEST(IsInteger, ReportsNoFalsePositives) { - EXPECT_TRUE(notMatches("int *i;", varDecl(hasType(isInteger())))); - EXPECT_TRUE(notMatches("struct T {}; T t; void f(T *) { }; void g() {f(&t);}", - callExpr(hasArgument(0, declRefExpr( - to(varDecl(hasType(isInteger())))))))); -} - -TEST(IsAnyPointer, MatchesPointers) { - EXPECT_TRUE(matches("int* i = nullptr;", varDecl(hasType(isAnyPointer())))); -} - -TEST(IsAnyPointer, MatchesObjcPointer) { - EXPECT_TRUE(matchesObjC("@interface Foo @end Foo *f;", - varDecl(hasType(isAnyPointer())))); -} - -TEST(IsAnyPointer, ReportsNoFalsePositives) { - EXPECT_TRUE(notMatches("int i = 0;", varDecl(hasType(isAnyPointer())))); -} - -TEST(IsAnyCharacter, MatchesCharacters) { - EXPECT_TRUE(matches("char i = 0;", varDecl(hasType(isAnyCharacter())))); -} - -TEST(IsAnyCharacter, ReportsNoFalsePositives) { - EXPECT_TRUE(notMatches("int i;", varDecl(hasType(isAnyCharacter())))); -} - -TEST(IsArrow, MatchesMemberVariablesViaArrow) { - EXPECT_TRUE(matches("class Y { void x() { this->y; } int y; };", - memberExpr(isArrow()))); - EXPECT_TRUE(matches("class Y { void x() { y; } int y; };", - memberExpr(isArrow()))); - EXPECT_TRUE(notMatches("class Y { void x() { (*this).y; } int y; };", - memberExpr(isArrow()))); -} - -TEST(IsArrow, MatchesStaticMemberVariablesViaArrow) { - EXPECT_TRUE(matches("class Y { void x() { this->y; } static int y; };", - memberExpr(isArrow()))); - EXPECT_TRUE(notMatches("class Y { void x() { y; } static int y; };", - memberExpr(isArrow()))); - EXPECT_TRUE(notMatches("class Y { void x() { (*this).y; } static int y; };", - memberExpr(isArrow()))); -} - -TEST(IsArrow, MatchesMemberCallsViaArrow) { - EXPECT_TRUE(matches("class Y { void x() { this->x(); } };", - memberExpr(isArrow()))); - EXPECT_TRUE(matches("class Y { void x() { x(); } };", - memberExpr(isArrow()))); - EXPECT_TRUE(notMatches("class Y { void x() { Y y; y.x(); } };", - memberExpr(isArrow()))); -} - -TEST(Callee, MatchesDeclarations) { - StatementMatcher CallMethodX = callExpr(callee(cxxMethodDecl(hasName("x")))); - - EXPECT_TRUE(matches("class Y { void x() { x(); } };", CallMethodX)); - EXPECT_TRUE(notMatches("class Y { void x() {} };", CallMethodX)); - - CallMethodX = callExpr(callee(cxxConversionDecl())); - EXPECT_TRUE( - matches("struct Y { operator int() const; }; int i = Y();", CallMethodX)); - EXPECT_TRUE(notMatches("struct Y { operator int() const; }; Y y = Y();", - CallMethodX)); -} - -TEST(ConversionDeclaration, IsExplicit) { - EXPECT_TRUE(matches("struct S { explicit operator int(); };", - cxxConversionDecl(isExplicit()))); - EXPECT_TRUE(notMatches("struct S { operator int(); };", - cxxConversionDecl(isExplicit()))); -} - -TEST(Callee, MatchesMemberExpressions) { - EXPECT_TRUE(matches("class Y { void x() { this->x(); } };", - callExpr(callee(memberExpr())))); - EXPECT_TRUE( - notMatches("class Y { void x() { this->x(); } };", callExpr(callee(callExpr())))); -} - -TEST(Function, MatchesFunctionDeclarations) { - StatementMatcher CallFunctionF = callExpr(callee(functionDecl(hasName("f")))); - - EXPECT_TRUE(matches("void f() { f(); }", CallFunctionF)); - EXPECT_TRUE(notMatches("void f() { }", CallFunctionF)); - - if (llvm::Triple(llvm::sys::getDefaultTargetTriple()).getOS() != - llvm::Triple::Win32) { - // FIXME: Make this work for MSVC. - // Dependent contexts, but a non-dependent call. - EXPECT_TRUE(matches("void f(); template void g() { f(); }", - CallFunctionF)); - EXPECT_TRUE( - matches("void f(); template struct S { void g() { f(); } };", - CallFunctionF)); - } - - // Depedent calls don't match. - EXPECT_TRUE( - notMatches("void f(int); template void g(T t) { f(t); }", - CallFunctionF)); - EXPECT_TRUE( - notMatches("void f(int);" - "template struct S { void g(T t) { f(t); } };", - CallFunctionF)); - - EXPECT_TRUE(matches("void f(...);", functionDecl(isVariadic()))); - EXPECT_TRUE(notMatches("void f(int);", functionDecl(isVariadic()))); - EXPECT_TRUE(notMatches("template void f(Ts...);", - functionDecl(isVariadic()))); - EXPECT_TRUE(notMatches("void f();", functionDecl(isVariadic()))); - EXPECT_TRUE(notMatchesC("void f();", functionDecl(isVariadic()))); - EXPECT_TRUE(matches("void f(...);", functionDecl(parameterCountIs(0)))); - EXPECT_TRUE(matchesC("void f();", functionDecl(parameterCountIs(0)))); - EXPECT_TRUE(matches("void f(int, ...);", functionDecl(parameterCountIs(1)))); -} - -TEST(FunctionTemplate, MatchesFunctionTemplateDeclarations) { - EXPECT_TRUE( - matches("template void f(T t) {}", - functionTemplateDecl(hasName("f")))); -} - -TEST(FunctionTemplate, DoesNotMatchFunctionDeclarations) { - EXPECT_TRUE( - notMatches("void f(double d); void f(int t) {}", - functionTemplateDecl(hasName("f")))); -} - -TEST(FunctionTemplate, DoesNotMatchFunctionTemplateSpecializations) { - EXPECT_TRUE( - notMatches("void g(); template void f(T t) {}" - "template <> void f(int t) { g(); }", - functionTemplateDecl(hasName("f"), - hasDescendant(declRefExpr(to( - functionDecl(hasName("g")))))))); -} - -TEST(Matcher, Argument) { - StatementMatcher CallArgumentY = callExpr( - hasArgument(0, declRefExpr(to(varDecl(hasName("y")))))); - - EXPECT_TRUE(matches("void x(int) { int y; x(y); }", CallArgumentY)); - EXPECT_TRUE( - matches("class X { void x(int) { int y; x(y); } };", CallArgumentY)); - EXPECT_TRUE(notMatches("void x(int) { int z; x(z); }", CallArgumentY)); - - StatementMatcher WrongIndex = callExpr( - hasArgument(42, declRefExpr(to(varDecl(hasName("y")))))); - EXPECT_TRUE(notMatches("void x(int) { int y; x(y); }", WrongIndex)); -} - -TEST(Matcher, AnyArgument) { - StatementMatcher CallArgumentY = callExpr( - hasAnyArgument( - ignoringParenImpCasts(declRefExpr(to(varDecl(hasName("y"))))))); - EXPECT_TRUE(matches("void x(int, int) { int y; x(1, y); }", CallArgumentY)); - EXPECT_TRUE(matches("void x(int, int) { int y; x(y, 42); }", CallArgumentY)); - EXPECT_TRUE(notMatches("void x(int, int) { x(1, 2); }", CallArgumentY)); - - StatementMatcher ImplicitCastedArgument = callExpr( - hasAnyArgument(implicitCastExpr())); - EXPECT_TRUE(matches("void x(long) { int y; x(y); }", ImplicitCastedArgument)); -} - -TEST(ForEachArgumentWithParam, ReportsNoFalsePositives) { - StatementMatcher ArgumentY = - declRefExpr(to(varDecl(hasName("y")))).bind("arg"); - DeclarationMatcher IntParam = parmVarDecl(hasType(isInteger())).bind("param"); - StatementMatcher CallExpr = - callExpr(forEachArgumentWithParam(ArgumentY, IntParam)); - - // IntParam does not match. - EXPECT_TRUE(notMatches("void f(int* i) { int* y; f(y); }", CallExpr)); - // ArgumentY does not match. - EXPECT_TRUE(notMatches("void f(int i) { int x; f(x); }", CallExpr)); -} - -TEST(ForEachArgumentWithParam, MatchesCXXMemberCallExpr) { - StatementMatcher ArgumentY = - declRefExpr(to(varDecl(hasName("y")))).bind("arg"); - DeclarationMatcher IntParam = parmVarDecl(hasType(isInteger())).bind("param"); - StatementMatcher CallExpr = - callExpr(forEachArgumentWithParam(ArgumentY, IntParam)); - EXPECT_TRUE(matchAndVerifyResultTrue( - "struct S {" - " const S& operator[](int i) { return *this; }" - "};" - "void f(S S1) {" - " int y = 1;" - " S1[y];" - "}", - CallExpr, llvm::make_unique>("param", 1))); - - StatementMatcher CallExpr2 = - callExpr(forEachArgumentWithParam(ArgumentY, IntParam)); - EXPECT_TRUE(matchAndVerifyResultTrue( - "struct S {" - " static void g(int i);" - "};" - "void f() {" - " int y = 1;" - " S::g(y);" - "}", - CallExpr2, llvm::make_unique>("param", 1))); -} - -TEST(ForEachArgumentWithParam, MatchesCallExpr) { - StatementMatcher ArgumentY = - declRefExpr(to(varDecl(hasName("y")))).bind("arg"); - DeclarationMatcher IntParam = parmVarDecl(hasType(isInteger())).bind("param"); - StatementMatcher CallExpr = - callExpr(forEachArgumentWithParam(ArgumentY, IntParam)); - - EXPECT_TRUE( - matchAndVerifyResultTrue("void f(int i) { int y; f(y); }", CallExpr, - llvm::make_unique>( - "param"))); - EXPECT_TRUE( - matchAndVerifyResultTrue("void f(int i) { int y; f(y); }", CallExpr, - llvm::make_unique>( - "arg"))); - - EXPECT_TRUE(matchAndVerifyResultTrue( - "void f(int i, int j) { int y; f(y, y); }", CallExpr, - llvm::make_unique>("param", 2))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "void f(int i, int j) { int y; f(y, y); }", CallExpr, - llvm::make_unique>("arg", 2))); -} - -TEST(ForEachArgumentWithParam, MatchesConstructExpr) { - StatementMatcher ArgumentY = - declRefExpr(to(varDecl(hasName("y")))).bind("arg"); - DeclarationMatcher IntParam = parmVarDecl(hasType(isInteger())).bind("param"); - StatementMatcher ConstructExpr = - cxxConstructExpr(forEachArgumentWithParam(ArgumentY, IntParam)); - - EXPECT_TRUE(matchAndVerifyResultTrue( - "struct C {" - " C(int i) {}" - "};" - "int y = 0;" - "C Obj(y);", - ConstructExpr, - llvm::make_unique>("param"))); -} - -TEST(ForEachArgumentWithParam, HandlesBoundNodesForNonMatches) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "void g(int i, int j) {" - " int a;" - " int b;" - " int c;" - " g(a, 0);" - " g(a, b);" - " g(0, b);" - "}", - functionDecl( - forEachDescendant(varDecl().bind("v")), - forEachDescendant(callExpr(forEachArgumentWithParam( - declRefExpr(to(decl(equalsBoundNode("v")))), parmVarDecl())))), - llvm::make_unique>("v", 4))); -} - -TEST(Matcher, ArgumentCount) { - StatementMatcher Call1Arg = callExpr(argumentCountIs(1)); - - EXPECT_TRUE(matches("void x(int) { x(0); }", Call1Arg)); - EXPECT_TRUE(matches("class X { void x(int) { x(0); } };", Call1Arg)); - EXPECT_TRUE(notMatches("void x(int, int) { x(0, 0); }", Call1Arg)); -} - -TEST(Matcher, ParameterCount) { - DeclarationMatcher Function1Arg = functionDecl(parameterCountIs(1)); - EXPECT_TRUE(matches("void f(int i) {}", Function1Arg)); - EXPECT_TRUE(matches("class X { void f(int i) {} };", Function1Arg)); - EXPECT_TRUE(notMatches("void f() {}", Function1Arg)); - EXPECT_TRUE(notMatches("void f(int i, int j, int k) {}", Function1Arg)); - EXPECT_TRUE(matches("void f(int i, ...) {};", Function1Arg)); -} - -TEST(Matcher, References) { - DeclarationMatcher ReferenceClassX = varDecl( - hasType(references(recordDecl(hasName("X"))))); - EXPECT_TRUE(matches("class X {}; void y(X y) { X &x = y; }", - ReferenceClassX)); - EXPECT_TRUE( - matches("class X {}; void y(X y) { const X &x = y; }", ReferenceClassX)); - // The match here is on the implicit copy constructor code for - // class X, not on code 'X x = y'. - EXPECT_TRUE( - matches("class X {}; void y(X y) { X x = y; }", ReferenceClassX)); - EXPECT_TRUE( - notMatches("class X {}; extern X x;", ReferenceClassX)); - EXPECT_TRUE( - notMatches("class X {}; void y(X *y) { X *&x = y; }", ReferenceClassX)); -} - -TEST(QualType, hasCanonicalType) { - EXPECT_TRUE(notMatches("typedef int &int_ref;" - "int a;" - "int_ref b = a;", - varDecl(hasType(qualType(referenceType()))))); - EXPECT_TRUE( - matches("typedef int &int_ref;" - "int a;" - "int_ref b = a;", - varDecl(hasType(qualType(hasCanonicalType(referenceType())))))); -} - -TEST(QualType, hasLocalQualifiers) { - EXPECT_TRUE(notMatches("typedef const int const_int; const_int i = 1;", - varDecl(hasType(hasLocalQualifiers())))); - EXPECT_TRUE(matches("int *const j = nullptr;", - varDecl(hasType(hasLocalQualifiers())))); - EXPECT_TRUE(matches("int *volatile k;", - varDecl(hasType(hasLocalQualifiers())))); - EXPECT_TRUE(notMatches("int m;", - varDecl(hasType(hasLocalQualifiers())))); -} - -TEST(HasParameter, CallsInnerMatcher) { - EXPECT_TRUE(matches("class X { void x(int) {} };", - cxxMethodDecl(hasParameter(0, varDecl())))); - EXPECT_TRUE(notMatches("class X { void x(int) {} };", - cxxMethodDecl(hasParameter(0, hasName("x"))))); -} - -TEST(HasParameter, DoesNotMatchIfIndexOutOfBounds) { - EXPECT_TRUE(notMatches("class X { void x(int) {} };", - cxxMethodDecl(hasParameter(42, varDecl())))); -} - -TEST(HasType, MatchesParameterVariableTypesStrictly) { - EXPECT_TRUE(matches( - "class X { void x(X x) {} };", - cxxMethodDecl(hasParameter(0, hasType(recordDecl(hasName("X"))))))); - EXPECT_TRUE(notMatches( - "class X { void x(const X &x) {} };", - cxxMethodDecl(hasParameter(0, hasType(recordDecl(hasName("X"))))))); - EXPECT_TRUE(matches("class X { void x(const X *x) {} };", - cxxMethodDecl(hasParameter( - 0, hasType(pointsTo(recordDecl(hasName("X")))))))); - EXPECT_TRUE(matches("class X { void x(const X &x) {} };", - cxxMethodDecl(hasParameter( - 0, hasType(references(recordDecl(hasName("X")))))))); -} - -TEST(HasAnyParameter, MatchesIndependentlyOfPosition) { - EXPECT_TRUE(matches( - "class Y {}; class X { void x(X x, Y y) {} };", - cxxMethodDecl(hasAnyParameter(hasType(recordDecl(hasName("X"))))))); - EXPECT_TRUE(matches( - "class Y {}; class X { void x(Y y, X x) {} };", - cxxMethodDecl(hasAnyParameter(hasType(recordDecl(hasName("X"))))))); -} - -TEST(Returns, MatchesReturnTypes) { - EXPECT_TRUE(matches("class Y { int f() { return 1; } };", - functionDecl(returns(asString("int"))))); - EXPECT_TRUE(notMatches("class Y { int f() { return 1; } };", - functionDecl(returns(asString("float"))))); - EXPECT_TRUE(matches("class Y { Y getMe() { return *this; } };", - functionDecl(returns(hasDeclaration( - recordDecl(hasName("Y"))))))); -} - -TEST(IsExternC, MatchesExternCFunctionDeclarations) { - EXPECT_TRUE(matches("extern \"C\" void f() {}", functionDecl(isExternC()))); - EXPECT_TRUE(matches("extern \"C\" { void f() {} }", - functionDecl(isExternC()))); - EXPECT_TRUE(notMatches("void f() {}", functionDecl(isExternC()))); -} - -TEST(IsDefaulted, MatchesDefaultedFunctionDeclarations) { - EXPECT_TRUE(notMatches("class A { ~A(); };", - functionDecl(hasName("~A"), isDefaulted()))); - EXPECT_TRUE(matches("class B { ~B() = default; };", - functionDecl(hasName("~B"), isDefaulted()))); -} - -TEST(IsDeleted, MatchesDeletedFunctionDeclarations) { - EXPECT_TRUE( - notMatches("void Func();", functionDecl(hasName("Func"), isDeleted()))); - EXPECT_TRUE(matches("void Func() = delete;", - functionDecl(hasName("Func"), isDeleted()))); -} - -TEST(IsNoThrow, MatchesNoThrowFunctionDeclarations) { - EXPECT_TRUE(notMatches("void f();", functionDecl(isNoThrow()))); - EXPECT_TRUE(notMatches("void f() throw(int);", functionDecl(isNoThrow()))); - EXPECT_TRUE( - notMatches("void f() noexcept(false);", functionDecl(isNoThrow()))); - EXPECT_TRUE(matches("void f() throw();", functionDecl(isNoThrow()))); - EXPECT_TRUE(matches("void f() noexcept;", functionDecl(isNoThrow()))); -} - -TEST(isConstexpr, MatchesConstexprDeclarations) { - EXPECT_TRUE(matches("constexpr int foo = 42;", - varDecl(hasName("foo"), isConstexpr()))); - EXPECT_TRUE(matches("constexpr int bar();", - functionDecl(hasName("bar"), isConstexpr()))); -} - -TEST(HasAnyParameter, DoesntMatchIfInnerMatcherDoesntMatch) { - EXPECT_TRUE(notMatches( - "class Y {}; class X { void x(int) {} };", - cxxMethodDecl(hasAnyParameter(hasType(recordDecl(hasName("X"))))))); -} - -TEST(HasAnyParameter, DoesNotMatchThisPointer) { - EXPECT_TRUE(notMatches("class Y {}; class X { void x() {} };", - cxxMethodDecl(hasAnyParameter( - hasType(pointsTo(recordDecl(hasName("X")))))))); -} - -TEST(HasName, MatchesParameterVariableDeclarations) { - EXPECT_TRUE(matches("class Y {}; class X { void x(int x) {} };", - cxxMethodDecl(hasAnyParameter(hasName("x"))))); - EXPECT_TRUE(notMatches("class Y {}; class X { void x(int) {} };", - cxxMethodDecl(hasAnyParameter(hasName("x"))))); -} - -TEST(Matcher, MatchesClassTemplateSpecialization) { - EXPECT_TRUE(matches("template struct A {};" - "template<> struct A {};", - classTemplateSpecializationDecl())); - EXPECT_TRUE(matches("template struct A {}; A a;", - classTemplateSpecializationDecl())); - EXPECT_TRUE(notMatches("template struct A {};", - classTemplateSpecializationDecl())); -} - -TEST(DeclaratorDecl, MatchesDeclaratorDecls) { - EXPECT_TRUE(matches("int x;", declaratorDecl())); - EXPECT_TRUE(notMatches("class A {};", declaratorDecl())); -} - -TEST(ParmVarDecl, MatchesParmVars) { - EXPECT_TRUE(matches("void f(int x);", parmVarDecl())); - EXPECT_TRUE(notMatches("void f();", parmVarDecl())); -} - -TEST(Matcher, MatchesTypeTemplateArgument) { - EXPECT_TRUE(matches( - "template struct B {};" - "B b;", - classTemplateSpecializationDecl(hasAnyTemplateArgument(refersToType( - asString("int")))))); -} - -TEST(Matcher, MatchesDeclarationReferenceTemplateArgument) { - EXPECT_TRUE(matches( - "struct B { int next; };" - "template struct A {};" - "A<&B::next> a;", - classTemplateSpecializationDecl(hasAnyTemplateArgument( - refersToDeclaration(fieldDecl(hasName("next"))))))); - - EXPECT_TRUE(notMatches( - "template struct A {};" - "A a;", - classTemplateSpecializationDecl(hasAnyTemplateArgument( - refersToDeclaration(decl()))))); - - EXPECT_TRUE(matches( - "struct B { int next; };" - "template struct A {};" - "A<&B::next> a;", - templateSpecializationType(hasAnyTemplateArgument(isExpr( - hasDescendant(declRefExpr(to(fieldDecl(hasName("next")))))))))); - - EXPECT_TRUE(notMatches( - "template struct A {};" - "A a;", - templateSpecializationType(hasAnyTemplateArgument( - refersToDeclaration(decl()))))); -} - -TEST(Matcher, MatchesSpecificArgument) { - EXPECT_TRUE(matches( - "template class A {};" - "A a;", - classTemplateSpecializationDecl(hasTemplateArgument( - 1, refersToType(asString("int")))))); - EXPECT_TRUE(notMatches( - "template class A {};" - "A a;", - classTemplateSpecializationDecl(hasTemplateArgument( - 1, refersToType(asString("int")))))); - - EXPECT_TRUE(matches( - "template class A {};" - "A a;", - templateSpecializationType(hasTemplateArgument( - 1, refersToType(asString("int")))))); - EXPECT_TRUE(notMatches( - "template class A {};" - "A a;", - templateSpecializationType(hasTemplateArgument( - 1, refersToType(asString("int")))))); -} - -TEST(TemplateArgument, Matches) { - EXPECT_TRUE(matches("template struct C {}; C c;", - classTemplateSpecializationDecl( - hasAnyTemplateArgument(templateArgument())))); - EXPECT_TRUE(matches( - "template struct C {}; C c;", - templateSpecializationType(hasAnyTemplateArgument(templateArgument())))); -} - -TEST(TemplateArgumentCountIs, Matches) { - EXPECT_TRUE( - matches("template struct C {}; C c;", - classTemplateSpecializationDecl(templateArgumentCountIs(1)))); - EXPECT_TRUE( - notMatches("template struct C {}; C c;", - classTemplateSpecializationDecl(templateArgumentCountIs(2)))); - - EXPECT_TRUE(matches("template struct C {}; C c;", - templateSpecializationType(templateArgumentCountIs(1)))); - EXPECT_TRUE( - notMatches("template struct C {}; C c;", - templateSpecializationType(templateArgumentCountIs(2)))); -} - -TEST(IsIntegral, Matches) { - EXPECT_TRUE(matches("template struct C {}; C<42> c;", - classTemplateSpecializationDecl( - hasAnyTemplateArgument(isIntegral())))); - EXPECT_TRUE(notMatches("template struct C {}; C c;", - classTemplateSpecializationDecl(hasAnyTemplateArgument( - templateArgument(isIntegral()))))); -} - -TEST(RefersToIntegralType, Matches) { - EXPECT_TRUE(matches("template struct C {}; C<42> c;", - classTemplateSpecializationDecl( - hasAnyTemplateArgument(refersToIntegralType( - asString("int")))))); - EXPECT_TRUE(notMatches("template struct C {}; C<42> c;", - classTemplateSpecializationDecl(hasAnyTemplateArgument( - refersToIntegralType(asString("int")))))); -} - -TEST(EqualsIntegralValue, Matches) { - EXPECT_TRUE(matches("template struct C {}; C<42> c;", - classTemplateSpecializationDecl( - hasAnyTemplateArgument(equalsIntegralValue("42"))))); - EXPECT_TRUE(matches("template struct C {}; C<-42> c;", - classTemplateSpecializationDecl( - hasAnyTemplateArgument(equalsIntegralValue("-42"))))); - EXPECT_TRUE(matches("template struct C {}; C<-0042> c;", - classTemplateSpecializationDecl( - hasAnyTemplateArgument(equalsIntegralValue("-34"))))); - EXPECT_TRUE(notMatches("template struct C {}; C<42> c;", - classTemplateSpecializationDecl(hasAnyTemplateArgument( - equalsIntegralValue("0042"))))); -} - -TEST(Matcher, MatchesAccessSpecDecls) { - EXPECT_TRUE(matches("class C { public: int i; };", accessSpecDecl())); - EXPECT_TRUE( - matches("class C { public: int i; };", accessSpecDecl(isPublic()))); - EXPECT_TRUE( - notMatches("class C { public: int i; };", accessSpecDecl(isProtected()))); - EXPECT_TRUE( - notMatches("class C { public: int i; };", accessSpecDecl(isPrivate()))); - - EXPECT_TRUE(notMatches("class C { int i; };", accessSpecDecl())); -} - -TEST(Matcher, MatchesFinal) { - EXPECT_TRUE(matches("class X final {};", cxxRecordDecl(isFinal()))); - EXPECT_TRUE(matches("class X { virtual void f() final; };", - cxxMethodDecl(isFinal()))); - EXPECT_TRUE(notMatches("class X {};", cxxRecordDecl(isFinal()))); - EXPECT_TRUE( - notMatches("class X { virtual void f(); };", cxxMethodDecl(isFinal()))); -} - -TEST(Matcher, MatchesVirtualMethod) { - EXPECT_TRUE(matches("class X { virtual int f(); };", - cxxMethodDecl(isVirtual(), hasName("::X::f")))); - EXPECT_TRUE(notMatches("class X { int f(); };", cxxMethodDecl(isVirtual()))); -} - -TEST(Matcher, MatchesVirtualAsWrittenMethod) { - EXPECT_TRUE(matches("class A { virtual int f(); };" - "class B : public A { int f(); };", - cxxMethodDecl(isVirtualAsWritten(), hasName("::A::f")))); - EXPECT_TRUE( - notMatches("class A { virtual int f(); };" - "class B : public A { int f(); };", - cxxMethodDecl(isVirtualAsWritten(), hasName("::B::f")))); -} - -TEST(Matcher, MatchesPureMethod) { - EXPECT_TRUE(matches("class X { virtual int f() = 0; };", - cxxMethodDecl(isPure(), hasName("::X::f")))); - EXPECT_TRUE(notMatches("class X { int f(); };", cxxMethodDecl(isPure()))); -} - -TEST(Matcher, MatchesCopyAssignmentOperator) { - EXPECT_TRUE(matches("class X { X &operator=(X); };", - cxxMethodDecl(isCopyAssignmentOperator()))); - EXPECT_TRUE(matches("class X { X &operator=(X &); };", - cxxMethodDecl(isCopyAssignmentOperator()))); - EXPECT_TRUE(matches("class X { X &operator=(const X &); };", - cxxMethodDecl(isCopyAssignmentOperator()))); - EXPECT_TRUE(matches("class X { X &operator=(volatile X &); };", - cxxMethodDecl(isCopyAssignmentOperator()))); - EXPECT_TRUE(matches("class X { X &operator=(const volatile X &); };", - cxxMethodDecl(isCopyAssignmentOperator()))); - EXPECT_TRUE(notMatches("class X { X &operator=(X &&); };", - cxxMethodDecl(isCopyAssignmentOperator()))); -} - -TEST(Matcher, MatchesMoveAssignmentOperator) { - EXPECT_TRUE(notMatches("class X { X &operator=(X); };", - cxxMethodDecl(isMoveAssignmentOperator()))); - EXPECT_TRUE(matches("class X { X &operator=(X &&); };", - cxxMethodDecl(isMoveAssignmentOperator()))); - EXPECT_TRUE(matches("class X { X &operator=(const X &&); };", - cxxMethodDecl(isMoveAssignmentOperator()))); - EXPECT_TRUE(matches("class X { X &operator=(volatile X &&); };", - cxxMethodDecl(isMoveAssignmentOperator()))); - EXPECT_TRUE(matches("class X { X &operator=(const volatile X &&); };", - cxxMethodDecl(isMoveAssignmentOperator()))); - EXPECT_TRUE(notMatches("class X { X &operator=(X &); };", - cxxMethodDecl(isMoveAssignmentOperator()))); -} - -TEST(Matcher, MatchesConstMethod) { - EXPECT_TRUE( - matches("struct A { void foo() const; };", cxxMethodDecl(isConst()))); - EXPECT_TRUE( - notMatches("struct A { void foo(); };", cxxMethodDecl(isConst()))); -} - -TEST(Matcher, MatchesOverridingMethod) { - EXPECT_TRUE(matches("class X { virtual int f(); }; " - "class Y : public X { int f(); };", - cxxMethodDecl(isOverride(), hasName("::Y::f")))); - EXPECT_TRUE(notMatches("class X { virtual int f(); }; " - "class Y : public X { int f(); };", - cxxMethodDecl(isOverride(), hasName("::X::f")))); - EXPECT_TRUE(notMatches("class X { int f(); }; " - "class Y : public X { int f(); };", - cxxMethodDecl(isOverride()))); - EXPECT_TRUE(notMatches("class X { int f(); int f(int); }; ", - cxxMethodDecl(isOverride()))); - EXPECT_TRUE( - matches("template struct Y : Base { void f() override;};", - cxxMethodDecl(isOverride(), hasName("::Y::f")))); -} - -TEST(Matcher, ConstructorCall) { - StatementMatcher Constructor = cxxConstructExpr(); - - EXPECT_TRUE( - matches("class X { public: X(); }; void x() { X x; }", Constructor)); - EXPECT_TRUE( - matches("class X { public: X(); }; void x() { X x = X(); }", - Constructor)); - EXPECT_TRUE( - matches("class X { public: X(int); }; void x() { X x = 0; }", - Constructor)); - EXPECT_TRUE(matches("class X {}; void x(int) { X x; }", Constructor)); -} - -TEST(Matcher, ConstructorArgument) { - StatementMatcher Constructor = cxxConstructExpr( - hasArgument(0, declRefExpr(to(varDecl(hasName("y")))))); - - EXPECT_TRUE( - matches("class X { public: X(int); }; void x() { int y; X x(y); }", - Constructor)); - EXPECT_TRUE( - matches("class X { public: X(int); }; void x() { int y; X x = X(y); }", - Constructor)); - EXPECT_TRUE( - matches("class X { public: X(int); }; void x() { int y; X x = y; }", - Constructor)); - EXPECT_TRUE( - notMatches("class X { public: X(int); }; void x() { int z; X x(z); }", - Constructor)); - - StatementMatcher WrongIndex = cxxConstructExpr( - hasArgument(42, declRefExpr(to(varDecl(hasName("y")))))); - EXPECT_TRUE( - notMatches("class X { public: X(int); }; void x() { int y; X x(y); }", - WrongIndex)); -} - -TEST(Matcher, ConstructorArgumentCount) { - StatementMatcher Constructor1Arg = cxxConstructExpr(argumentCountIs(1)); - - EXPECT_TRUE( - matches("class X { public: X(int); }; void x() { X x(0); }", - Constructor1Arg)); - EXPECT_TRUE( - matches("class X { public: X(int); }; void x() { X x = X(0); }", - Constructor1Arg)); - EXPECT_TRUE( - matches("class X { public: X(int); }; void x() { X x = 0; }", - Constructor1Arg)); - EXPECT_TRUE( - notMatches("class X { public: X(int, int); }; void x() { X x(0, 0); }", - Constructor1Arg)); -} - -TEST(Matcher, ConstructorListInitialization) { - StatementMatcher ConstructorListInit = - cxxConstructExpr(isListInitialization()); - - EXPECT_TRUE( - matches("class X { public: X(int); }; void x() { X x{0}; }", - ConstructorListInit)); - EXPECT_FALSE( - matches("class X { public: X(int); }; void x() { X x(0); }", - ConstructorListInit)); -} - -TEST(Matcher,ThisExpr) { - EXPECT_TRUE( - matches("struct X { int a; int f () { return a; } };", cxxThisExpr())); - EXPECT_TRUE( - notMatches("struct X { int f () { int a; return a; } };", cxxThisExpr())); -} - -TEST(Matcher, BindTemporaryExpression) { - StatementMatcher TempExpression = cxxBindTemporaryExpr(); - - std::string ClassString = "class string { public: string(); ~string(); }; "; - - EXPECT_TRUE( - matches(ClassString + - "string GetStringByValue();" - "void FunctionTakesString(string s);" - "void run() { FunctionTakesString(GetStringByValue()); }", - TempExpression)); - - EXPECT_TRUE( - notMatches(ClassString + - "string* GetStringPointer(); " - "void FunctionTakesStringPtr(string* s);" - "void run() {" - " string* s = GetStringPointer();" - " FunctionTakesStringPtr(GetStringPointer());" - " FunctionTakesStringPtr(s);" - "}", - TempExpression)); - - EXPECT_TRUE( - notMatches("class no_dtor {};" - "no_dtor GetObjByValue();" - "void ConsumeObj(no_dtor param);" - "void run() { ConsumeObj(GetObjByValue()); }", - TempExpression)); -} - -TEST(MaterializeTemporaryExpr, MatchesTemporary) { - std::string ClassString = - "class string { public: string(); int length(); }; "; - - EXPECT_TRUE( - matches(ClassString + - "string GetStringByValue();" - "void FunctionTakesString(string s);" - "void run() { FunctionTakesString(GetStringByValue()); }", - materializeTemporaryExpr())); - - EXPECT_TRUE( - notMatches(ClassString + - "string* GetStringPointer(); " - "void FunctionTakesStringPtr(string* s);" - "void run() {" - " string* s = GetStringPointer();" - " FunctionTakesStringPtr(GetStringPointer());" - " FunctionTakesStringPtr(s);" - "}", - materializeTemporaryExpr())); - - EXPECT_TRUE( - notMatches(ClassString + - "string GetStringByValue();" - "void run() { int k = GetStringByValue().length(); }", - materializeTemporaryExpr())); - - EXPECT_TRUE( - notMatches(ClassString + - "string GetStringByValue();" - "void run() { GetStringByValue(); }", - materializeTemporaryExpr())); -} - -TEST(ConstructorDeclaration, SimpleCase) { - EXPECT_TRUE(matches("class Foo { Foo(int i); };", - cxxConstructorDecl(ofClass(hasName("Foo"))))); - EXPECT_TRUE(notMatches("class Foo { Foo(int i); };", - cxxConstructorDecl(ofClass(hasName("Bar"))))); -} - -TEST(ConstructorDeclaration, IsImplicit) { - // This one doesn't match because the constructor is not added by the - // compiler (it is not needed). - EXPECT_TRUE(notMatches("class Foo { };", - cxxConstructorDecl(isImplicit()))); - // The compiler added the implicit default constructor. - EXPECT_TRUE(matches("class Foo { }; Foo* f = new Foo();", - cxxConstructorDecl(isImplicit()))); - EXPECT_TRUE(matches("class Foo { Foo(){} };", - cxxConstructorDecl(unless(isImplicit())))); - // The compiler added an implicit assignment operator. - EXPECT_TRUE(matches("struct A { int x; } a = {0}, b = a; void f() { a = b; }", - cxxMethodDecl(isImplicit(), hasName("operator=")))); -} - -TEST(ConstructorDeclaration, IsExplicit) { - EXPECT_TRUE(matches("struct S { explicit S(int); };", - cxxConstructorDecl(isExplicit()))); - EXPECT_TRUE(notMatches("struct S { S(int); };", - cxxConstructorDecl(isExplicit()))); -} - -TEST(ConstructorDeclaration, Kinds) { - EXPECT_TRUE(matches("struct S { S(); };", - cxxConstructorDecl(isDefaultConstructor()))); - EXPECT_TRUE(notMatches("struct S { S(); };", - cxxConstructorDecl(isCopyConstructor()))); - EXPECT_TRUE(notMatches("struct S { S(); };", - cxxConstructorDecl(isMoveConstructor()))); - - EXPECT_TRUE(notMatches("struct S { S(const S&); };", - cxxConstructorDecl(isDefaultConstructor()))); - EXPECT_TRUE(matches("struct S { S(const S&); };", - cxxConstructorDecl(isCopyConstructor()))); - EXPECT_TRUE(notMatches("struct S { S(const S&); };", - cxxConstructorDecl(isMoveConstructor()))); - - EXPECT_TRUE(notMatches("struct S { S(S&&); };", - cxxConstructorDecl(isDefaultConstructor()))); - EXPECT_TRUE(notMatches("struct S { S(S&&); };", - cxxConstructorDecl(isCopyConstructor()))); - EXPECT_TRUE(matches("struct S { S(S&&); };", - cxxConstructorDecl(isMoveConstructor()))); -} - -TEST(ConstructorDeclaration, IsUserProvided) { - EXPECT_TRUE(notMatches("struct S { int X = 0; };", - cxxConstructorDecl(isUserProvided()))); - EXPECT_TRUE(notMatches("struct S { S() = default; };", - cxxConstructorDecl(isUserProvided()))); - EXPECT_TRUE(notMatches("struct S { S() = delete; };", - cxxConstructorDecl(isUserProvided()))); - EXPECT_TRUE( - matches("struct S { S(); };", cxxConstructorDecl(isUserProvided()))); - EXPECT_TRUE(matches("struct S { S(); }; S::S(){}", - cxxConstructorDecl(isUserProvided()))); -} - -TEST(ConstructorDeclaration, IsDelegatingConstructor) { - EXPECT_TRUE(notMatches("struct S { S(); S(int); int X; };", - cxxConstructorDecl(isDelegatingConstructor()))); - EXPECT_TRUE(notMatches("struct S { S(){} S(int X) : X(X) {} int X; };", - cxxConstructorDecl(isDelegatingConstructor()))); - EXPECT_TRUE(matches( - "struct S { S() : S(0) {} S(int X) : X(X) {} int X; };", - cxxConstructorDecl(isDelegatingConstructor(), parameterCountIs(0)))); - EXPECT_TRUE(matches( - "struct S { S(); S(int X); int X; }; S::S(int X) : S() {}", - cxxConstructorDecl(isDelegatingConstructor(), parameterCountIs(1)))); -} - -TEST(DestructorDeclaration, MatchesVirtualDestructor) { - EXPECT_TRUE(matches("class Foo { virtual ~Foo(); };", - cxxDestructorDecl(ofClass(hasName("Foo"))))); -} - -TEST(DestructorDeclaration, DoesNotMatchImplicitDestructor) { - EXPECT_TRUE(notMatches("class Foo {};", - cxxDestructorDecl(ofClass(hasName("Foo"))))); -} - -TEST(HasAnyConstructorInitializer, SimpleCase) { - EXPECT_TRUE( - notMatches("class Foo { Foo() { } };", - cxxConstructorDecl(hasAnyConstructorInitializer(anything())))); - EXPECT_TRUE( - matches("class Foo {" - " Foo() : foo_() { }" - " int foo_;" - "};", - cxxConstructorDecl(hasAnyConstructorInitializer(anything())))); -} - -TEST(HasAnyConstructorInitializer, ForField) { - static const char Code[] = - "class Baz { };" - "class Foo {" - " Foo() : foo_() { }" - " Baz foo_;" - " Baz bar_;" - "};"; - EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( - forField(hasType(recordDecl(hasName("Baz")))))))); - EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( - forField(hasName("foo_")))))); - EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( - forField(hasType(recordDecl(hasName("Bar")))))))); -} - -TEST(HasAnyConstructorInitializer, WithInitializer) { - static const char Code[] = - "class Foo {" - " Foo() : foo_(0) { }" - " int foo_;" - "};"; - EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( - withInitializer(integerLiteral(equals(0))))))); - EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( - withInitializer(integerLiteral(equals(1))))))); -} - -TEST(HasAnyConstructorInitializer, IsWritten) { - static const char Code[] = - "struct Bar { Bar(){} };" - "class Foo {" - " Foo() : foo_() { }" - " Bar foo_;" - " Bar bar_;" - "};"; - EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( - allOf(forField(hasName("foo_")), isWritten()))))); - EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( - allOf(forField(hasName("bar_")), isWritten()))))); - EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( - allOf(forField(hasName("bar_")), unless(isWritten())))))); -} - -TEST(HasAnyConstructorInitializer, IsBaseInitializer) { - static const char Code[] = - "struct B {};" - "struct D : B {" - " int I;" - " D(int i) : I(i) {}" - "};" - "struct E : B {" - " E() : B() {}" - "};"; - EXPECT_TRUE(matches(Code, cxxConstructorDecl(allOf( - hasAnyConstructorInitializer(allOf(isBaseInitializer(), isWritten())), - hasName("E"))))); - EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(allOf( - hasAnyConstructorInitializer(allOf(isBaseInitializer(), isWritten())), - hasName("D"))))); - EXPECT_TRUE(matches(Code, cxxConstructorDecl(allOf( - hasAnyConstructorInitializer(allOf(isMemberInitializer(), isWritten())), - hasName("D"))))); - EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(allOf( - hasAnyConstructorInitializer(allOf(isMemberInitializer(), isWritten())), - hasName("E"))))); -} - -TEST(Matcher, NewExpression) { - StatementMatcher New = cxxNewExpr(); - - EXPECT_TRUE(matches("class X { public: X(); }; void x() { new X; }", New)); - EXPECT_TRUE( - matches("class X { public: X(); }; void x() { new X(); }", New)); - EXPECT_TRUE( - matches("class X { public: X(int); }; void x() { new X(0); }", New)); - EXPECT_TRUE(matches("class X {}; void x(int) { new X; }", New)); -} - -TEST(Matcher, NewExpressionArgument) { - StatementMatcher New = cxxConstructExpr( - hasArgument(0, declRefExpr(to(varDecl(hasName("y")))))); - - EXPECT_TRUE( - matches("class X { public: X(int); }; void x() { int y; new X(y); }", - New)); - EXPECT_TRUE( - matches("class X { public: X(int); }; void x() { int y; new X(y); }", - New)); - EXPECT_TRUE( - notMatches("class X { public: X(int); }; void x() { int z; new X(z); }", - New)); - - StatementMatcher WrongIndex = cxxConstructExpr( - hasArgument(42, declRefExpr(to(varDecl(hasName("y")))))); - EXPECT_TRUE( - notMatches("class X { public: X(int); }; void x() { int y; new X(y); }", - WrongIndex)); -} - -TEST(Matcher, NewExpressionArgumentCount) { - StatementMatcher New = cxxConstructExpr(argumentCountIs(1)); - - EXPECT_TRUE( - matches("class X { public: X(int); }; void x() { new X(0); }", New)); - EXPECT_TRUE( - notMatches("class X { public: X(int, int); }; void x() { new X(0, 0); }", - New)); -} - -TEST(Matcher, DeleteExpression) { - EXPECT_TRUE(matches("struct A {}; void f(A* a) { delete a; }", - cxxDeleteExpr())); -} - -TEST(Matcher, DefaultArgument) { - StatementMatcher Arg = cxxDefaultArgExpr(); - - EXPECT_TRUE(matches("void x(int, int = 0) { int y; x(y); }", Arg)); - EXPECT_TRUE( - matches("class X { void x(int, int = 0) { int y; x(y); } };", Arg)); - EXPECT_TRUE(notMatches("void x(int, int = 0) { int y; x(y, 0); }", Arg)); -} - -TEST(Matcher, StringLiterals) { - StatementMatcher Literal = stringLiteral(); - EXPECT_TRUE(matches("const char *s = \"string\";", Literal)); - // wide string - EXPECT_TRUE(matches("const wchar_t *s = L\"string\";", Literal)); - // with escaped characters - EXPECT_TRUE(matches("const char *s = \"\x05five\";", Literal)); - // no matching -- though the data type is the same, there is no string literal - EXPECT_TRUE(notMatches("const char s[1] = {'a'};", Literal)); -} - -TEST(StringLiteral, HasSize) { - StatementMatcher Literal = stringLiteral(hasSize(4)); - EXPECT_TRUE(matches("const char *s = \"abcd\";", Literal)); - // wide string - EXPECT_TRUE(matches("const wchar_t *s = L\"abcd\";", Literal)); - // with escaped characters - EXPECT_TRUE(matches("const char *s = \"\x05\x06\x07\x08\";", Literal)); - // no matching, too small - EXPECT_TRUE(notMatches("const char *s = \"ab\";", Literal)); -} - -TEST(Matcher, CharacterLiterals) { - StatementMatcher CharLiteral = characterLiteral(); - EXPECT_TRUE(matches("const char c = 'c';", CharLiteral)); - // wide character - EXPECT_TRUE(matches("const char c = L'c';", CharLiteral)); - // wide character, Hex encoded, NOT MATCHED! - EXPECT_TRUE(notMatches("const wchar_t c = 0x2126;", CharLiteral)); - EXPECT_TRUE(notMatches("const char c = 0x1;", CharLiteral)); -} - -TEST(Matcher, IntegerLiterals) { - StatementMatcher HasIntLiteral = integerLiteral(); - EXPECT_TRUE(matches("int i = 10;", HasIntLiteral)); - EXPECT_TRUE(matches("int i = 0x1AB;", HasIntLiteral)); - EXPECT_TRUE(matches("int i = 10L;", HasIntLiteral)); - EXPECT_TRUE(matches("int i = 10U;", HasIntLiteral)); - - // Non-matching cases (character literals, float and double) - EXPECT_TRUE(notMatches("int i = L'a';", - HasIntLiteral)); // this is actually a character - // literal cast to int - EXPECT_TRUE(notMatches("int i = 'a';", HasIntLiteral)); - EXPECT_TRUE(notMatches("int i = 1e10;", HasIntLiteral)); - EXPECT_TRUE(notMatches("int i = 10.0;", HasIntLiteral)); -} - -TEST(Matcher, FloatLiterals) { - StatementMatcher HasFloatLiteral = floatLiteral(); - EXPECT_TRUE(matches("float i = 10.0;", HasFloatLiteral)); - EXPECT_TRUE(matches("float i = 10.0f;", HasFloatLiteral)); - EXPECT_TRUE(matches("double i = 10.0;", HasFloatLiteral)); - EXPECT_TRUE(matches("double i = 10.0L;", HasFloatLiteral)); - EXPECT_TRUE(matches("double i = 1e10;", HasFloatLiteral)); - EXPECT_TRUE(matches("double i = 5.0;", floatLiteral(equals(5.0)))); - EXPECT_TRUE(matches("double i = 5.0;", floatLiteral(equals(5.0f)))); - EXPECT_TRUE( - matches("double i = 5.0;", floatLiteral(equals(llvm::APFloat(5.0))))); - - EXPECT_TRUE(notMatches("float i = 10;", HasFloatLiteral)); - EXPECT_TRUE(notMatches("double i = 5.0;", floatLiteral(equals(6.0)))); - EXPECT_TRUE(notMatches("double i = 5.0;", floatLiteral(equals(6.0f)))); - EXPECT_TRUE( - notMatches("double i = 5.0;", floatLiteral(equals(llvm::APFloat(6.0))))); -} - -TEST(Matcher, NullPtrLiteral) { - EXPECT_TRUE(matches("int* i = nullptr;", cxxNullPtrLiteralExpr())); -} - -TEST(Matcher, GNUNullExpr) { - EXPECT_TRUE(matches("int* i = __null;", gnuNullExpr())); -} - -TEST(Matcher, AtomicExpr) { - EXPECT_TRUE(matches("void foo() { int *ptr; __atomic_load_n(ptr, 1); }", - atomicExpr())); -} - -TEST(Matcher, Initializers) { - const char *ToMatch = "void foo() { struct point { double x; double y; };" - " struct point ptarray[10] = " - " { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; }"; - EXPECT_TRUE(matchesConditionally( - ToMatch, - initListExpr( - has( - cxxConstructExpr( - requiresZeroInitialization())), - has( - initListExpr( - hasType(asString("struct point")), - has(floatLiteral(equals(1.0))), - has(implicitValueInitExpr( - hasType(asString("double")))))), - has( - initListExpr( - hasType(asString("struct point")), - has(floatLiteral(equals(2.0))), - has(floatLiteral(equals(1.0))))) - ), true, "-std=gnu++98")); - - EXPECT_TRUE(matchesC99(ToMatch, - initListExpr( - hasSyntacticForm( - initListExpr( - has( - designatedInitExpr( - designatorCountIs(2), - has(floatLiteral( - equals(1.0))), - has(integerLiteral( - equals(2))))), - has( - designatedInitExpr( - designatorCountIs(2), - has(floatLiteral( - equals(2.0))), - has(integerLiteral( - equals(2))))), - has( - designatedInitExpr( - designatorCountIs(2), - has(floatLiteral( - equals(1.0))), - has(integerLiteral( - equals(0))))) - ))))); -} - -TEST(Matcher, ParenListExpr) { - EXPECT_TRUE( - matches("template class foo { void bar() { foo X(*this); } };" - "template class foo;", - varDecl(hasInitializer(parenListExpr(has(unaryOperator())))))); -} - -TEST(Matcher, StmtExpr) { - EXPECT_TRUE(matches("void declToImport() { int C = ({int X=4; X;}); }", - varDecl(hasInitializer(stmtExpr())))); -} - -TEST(Matcher, ImportPredefinedExpr) { - // __func__ expands as StringLiteral("foo") - EXPECT_TRUE(matches("void foo() { __func__; }", - predefinedExpr( - hasType(asString("const char [4]")), - has(stringLiteral())))); -} - -TEST(Matcher, AsmStatement) { - EXPECT_TRUE(matches("void foo() { __asm(\"mov al, 2\"); }", asmStmt())); -} - -TEST(Matcher, Conditions) { - StatementMatcher Condition = - ifStmt(hasCondition(cxxBoolLiteral(equals(true)))); - - EXPECT_TRUE(matches("void x() { if (true) {} }", Condition)); - EXPECT_TRUE(notMatches("void x() { if (false) {} }", Condition)); - EXPECT_TRUE(notMatches("void x() { bool a = true; if (a) {} }", Condition)); - EXPECT_TRUE(notMatches("void x() { if (true || false) {} }", Condition)); - EXPECT_TRUE(notMatches("void x() { if (1) {} }", Condition)); -} - -TEST(IfStmt, ChildTraversalMatchers) { - EXPECT_TRUE(matches("void f() { if (false) true; else false; }", - ifStmt(hasThen(cxxBoolLiteral(equals(true)))))); - EXPECT_TRUE(notMatches("void f() { if (false) false; else true; }", - ifStmt(hasThen(cxxBoolLiteral(equals(true)))))); - EXPECT_TRUE(matches("void f() { if (false) false; else true; }", - ifStmt(hasElse(cxxBoolLiteral(equals(true)))))); - EXPECT_TRUE(notMatches("void f() { if (false) true; else false; }", - ifStmt(hasElse(cxxBoolLiteral(equals(true)))))); -} - -TEST(MatchBinaryOperator, HasOperatorName) { - StatementMatcher OperatorOr = binaryOperator(hasOperatorName("||")); - - EXPECT_TRUE(matches("void x() { true || false; }", OperatorOr)); - EXPECT_TRUE(notMatches("void x() { true && false; }", OperatorOr)); -} - -TEST(MatchBinaryOperator, HasLHSAndHasRHS) { - StatementMatcher OperatorTrueFalse = - binaryOperator(hasLHS(cxxBoolLiteral(equals(true))), - hasRHS(cxxBoolLiteral(equals(false)))); - - EXPECT_TRUE(matches("void x() { true || false; }", OperatorTrueFalse)); - EXPECT_TRUE(matches("void x() { true && false; }", OperatorTrueFalse)); - EXPECT_TRUE(notMatches("void x() { false || true; }", OperatorTrueFalse)); - - StatementMatcher OperatorIntPointer = arraySubscriptExpr( - hasLHS(hasType(isInteger())), hasRHS(hasType(pointsTo(qualType())))); - EXPECT_TRUE(matches("void x() { 1[\"abc\"]; }", OperatorIntPointer)); - EXPECT_TRUE(notMatches("void x() { \"abc\"[1]; }", OperatorIntPointer)); -} - -TEST(MatchBinaryOperator, HasEitherOperand) { - StatementMatcher HasOperand = - binaryOperator(hasEitherOperand(cxxBoolLiteral(equals(false)))); - - EXPECT_TRUE(matches("void x() { true || false; }", HasOperand)); - EXPECT_TRUE(matches("void x() { false && true; }", HasOperand)); - EXPECT_TRUE(notMatches("void x() { true || true; }", HasOperand)); -} - -TEST(Matcher, BinaryOperatorTypes) { - // Integration test that verifies the AST provides all binary operators in - // a way we expect. - // FIXME: Operator ',' - EXPECT_TRUE( - matches("void x() { 3, 4; }", binaryOperator(hasOperatorName(",")))); - EXPECT_TRUE( - matches("bool b; bool c = (b = true);", - binaryOperator(hasOperatorName("=")))); - EXPECT_TRUE( - matches("bool b = 1 != 2;", binaryOperator(hasOperatorName("!=")))); - EXPECT_TRUE( - matches("bool b = 1 == 2;", binaryOperator(hasOperatorName("==")))); - EXPECT_TRUE(matches("bool b = 1 < 2;", binaryOperator(hasOperatorName("<")))); - EXPECT_TRUE( - matches("bool b = 1 <= 2;", binaryOperator(hasOperatorName("<=")))); - EXPECT_TRUE( - matches("int i = 1 << 2;", binaryOperator(hasOperatorName("<<")))); - EXPECT_TRUE( - matches("int i = 1; int j = (i <<= 2);", - binaryOperator(hasOperatorName("<<=")))); - EXPECT_TRUE(matches("bool b = 1 > 2;", binaryOperator(hasOperatorName(">")))); - EXPECT_TRUE( - matches("bool b = 1 >= 2;", binaryOperator(hasOperatorName(">=")))); - EXPECT_TRUE( - matches("int i = 1 >> 2;", binaryOperator(hasOperatorName(">>")))); - EXPECT_TRUE( - matches("int i = 1; int j = (i >>= 2);", - binaryOperator(hasOperatorName(">>=")))); - EXPECT_TRUE( - matches("int i = 42 ^ 23;", binaryOperator(hasOperatorName("^")))); - EXPECT_TRUE( - matches("int i = 42; int j = (i ^= 42);", - binaryOperator(hasOperatorName("^=")))); - EXPECT_TRUE( - matches("int i = 42 % 23;", binaryOperator(hasOperatorName("%")))); - EXPECT_TRUE( - matches("int i = 42; int j = (i %= 42);", - binaryOperator(hasOperatorName("%=")))); - EXPECT_TRUE( - matches("bool b = 42 &23;", binaryOperator(hasOperatorName("&")))); - EXPECT_TRUE( - matches("bool b = true && false;", - binaryOperator(hasOperatorName("&&")))); - EXPECT_TRUE( - matches("bool b = true; bool c = (b &= false);", - binaryOperator(hasOperatorName("&=")))); - EXPECT_TRUE( - matches("bool b = 42 | 23;", binaryOperator(hasOperatorName("|")))); - EXPECT_TRUE( - matches("bool b = true || false;", - binaryOperator(hasOperatorName("||")))); - EXPECT_TRUE( - matches("bool b = true; bool c = (b |= false);", - binaryOperator(hasOperatorName("|=")))); - EXPECT_TRUE( - matches("int i = 42 *23;", binaryOperator(hasOperatorName("*")))); - EXPECT_TRUE( - matches("int i = 42; int j = (i *= 23);", - binaryOperator(hasOperatorName("*=")))); - EXPECT_TRUE( - matches("int i = 42 / 23;", binaryOperator(hasOperatorName("/")))); - EXPECT_TRUE( - matches("int i = 42; int j = (i /= 23);", - binaryOperator(hasOperatorName("/=")))); - EXPECT_TRUE( - matches("int i = 42 + 23;", binaryOperator(hasOperatorName("+")))); - EXPECT_TRUE( - matches("int i = 42; int j = (i += 23);", - binaryOperator(hasOperatorName("+=")))); - EXPECT_TRUE( - matches("int i = 42 - 23;", binaryOperator(hasOperatorName("-")))); - EXPECT_TRUE( - matches("int i = 42; int j = (i -= 23);", - binaryOperator(hasOperatorName("-=")))); - EXPECT_TRUE( - matches("struct A { void x() { void (A::*a)(); (this->*a)(); } };", - binaryOperator(hasOperatorName("->*")))); - EXPECT_TRUE( - matches("struct A { void x() { void (A::*a)(); ((*this).*a)(); } };", - binaryOperator(hasOperatorName(".*")))); - - // Member expressions as operators are not supported in matches. - EXPECT_TRUE( - notMatches("struct A { void x(A *a) { a->x(this); } };", - binaryOperator(hasOperatorName("->")))); - - // Initializer assignments are not represented as operator equals. - EXPECT_TRUE( - notMatches("bool b = true;", binaryOperator(hasOperatorName("=")))); - - // Array indexing is not represented as operator. - EXPECT_TRUE(notMatches("int a[42]; void x() { a[23]; }", unaryOperator())); - - // Overloaded operators do not match at all. - EXPECT_TRUE(notMatches( - "struct A { bool operator&&(const A &a) const { return false; } };" - "void x() { A a, b; a && b; }", - binaryOperator())); -} - -TEST(MatchUnaryOperator, HasOperatorName) { - StatementMatcher OperatorNot = unaryOperator(hasOperatorName("!")); - - EXPECT_TRUE(matches("void x() { !true; } ", OperatorNot)); - EXPECT_TRUE(notMatches("void x() { true; } ", OperatorNot)); -} - -TEST(MatchUnaryOperator, HasUnaryOperand) { - StatementMatcher OperatorOnFalse = - unaryOperator(hasUnaryOperand(cxxBoolLiteral(equals(false)))); - - EXPECT_TRUE(matches("void x() { !false; }", OperatorOnFalse)); - EXPECT_TRUE(notMatches("void x() { !true; }", OperatorOnFalse)); -} - -TEST(Matcher, UnaryOperatorTypes) { - // Integration test that verifies the AST provides all unary operators in - // a way we expect. - EXPECT_TRUE(matches("bool b = !true;", unaryOperator(hasOperatorName("!")))); - EXPECT_TRUE( - matches("bool b; bool *p = &b;", unaryOperator(hasOperatorName("&")))); - EXPECT_TRUE(matches("int i = ~ 1;", unaryOperator(hasOperatorName("~")))); - EXPECT_TRUE( - matches("bool *p; bool b = *p;", unaryOperator(hasOperatorName("*")))); - EXPECT_TRUE( - matches("int i; int j = +i;", unaryOperator(hasOperatorName("+")))); - EXPECT_TRUE( - matches("int i; int j = -i;", unaryOperator(hasOperatorName("-")))); - EXPECT_TRUE( - matches("int i; int j = ++i;", unaryOperator(hasOperatorName("++")))); - EXPECT_TRUE( - matches("int i; int j = i++;", unaryOperator(hasOperatorName("++")))); - EXPECT_TRUE( - matches("int i; int j = --i;", unaryOperator(hasOperatorName("--")))); - EXPECT_TRUE( - matches("int i; int j = i--;", unaryOperator(hasOperatorName("--")))); - - // We don't match conversion operators. - EXPECT_TRUE(notMatches("int i; double d = (double)i;", unaryOperator())); - - // Function calls are not represented as operator. - EXPECT_TRUE(notMatches("void f(); void x() { f(); }", unaryOperator())); - - // Overloaded operators do not match at all. - // FIXME: We probably want to add that. - EXPECT_TRUE(notMatches( - "struct A { bool operator!() const { return false; } };" - "void x() { A a; !a; }", unaryOperator(hasOperatorName("!")))); -} - -TEST(Matcher, ConditionalOperator) { - StatementMatcher Conditional = conditionalOperator( - hasCondition(cxxBoolLiteral(equals(true))), - hasTrueExpression(cxxBoolLiteral(equals(false)))); - - EXPECT_TRUE(matches("void x() { true ? false : true; }", Conditional)); - EXPECT_TRUE(notMatches("void x() { false ? false : true; }", Conditional)); - EXPECT_TRUE(notMatches("void x() { true ? true : false; }", Conditional)); - - StatementMatcher ConditionalFalse = conditionalOperator( - hasFalseExpression(cxxBoolLiteral(equals(false)))); - - EXPECT_TRUE(matches("void x() { true ? true : false; }", ConditionalFalse)); - EXPECT_TRUE( - notMatches("void x() { true ? false : true; }", ConditionalFalse)); - - EXPECT_TRUE(matches("void x() { true ? true : false; }", ConditionalFalse)); - EXPECT_TRUE( - notMatches("void x() { true ? false : true; }", ConditionalFalse)); -} - -TEST(Matcher, BinaryConditionalOperator) { - StatementMatcher AlwaysOne = binaryConditionalOperator( - hasCondition(implicitCastExpr( - has( - opaqueValueExpr( - hasSourceExpression((integerLiteral(equals(1)))))))), - hasFalseExpression(integerLiteral(equals(0)))); - - EXPECT_TRUE(matches("void x() { 1 ?: 0; }", AlwaysOne)); - - StatementMatcher FourNotFive = binaryConditionalOperator( - hasTrueExpression(opaqueValueExpr( - hasSourceExpression((integerLiteral(equals(4)))))), - hasFalseExpression(integerLiteral(equals(5)))); - - EXPECT_TRUE(matches("void x() { 4 ?: 5; }", FourNotFive)); -} - -TEST(ArraySubscriptMatchers, ArraySubscripts) { - EXPECT_TRUE(matches("int i[2]; void f() { i[1] = 1; }", - arraySubscriptExpr())); - EXPECT_TRUE(notMatches("int i; void f() { i = 1; }", - arraySubscriptExpr())); -} - -TEST(ArraySubscriptMatchers, ArrayIndex) { - EXPECT_TRUE(matches( - "int i[2]; void f() { i[1] = 1; }", - arraySubscriptExpr(hasIndex(integerLiteral(equals(1)))))); - EXPECT_TRUE(matches( - "int i[2]; void f() { 1[i] = 1; }", - arraySubscriptExpr(hasIndex(integerLiteral(equals(1)))))); - EXPECT_TRUE(notMatches( - "int i[2]; void f() { i[1] = 1; }", - arraySubscriptExpr(hasIndex(integerLiteral(equals(0)))))); -} - -TEST(ArraySubscriptMatchers, MatchesArrayBase) { - EXPECT_TRUE(matches( - "int i[2]; void f() { i[1] = 2; }", - arraySubscriptExpr(hasBase(implicitCastExpr( - hasSourceExpression(declRefExpr())))))); -} - -TEST(Matcher, HasNameSupportsNamespaces) { - EXPECT_TRUE(matches("namespace a { namespace b { class C; } }", - recordDecl(hasName("a::b::C")))); - EXPECT_TRUE(matches("namespace a { namespace b { class C; } }", - recordDecl(hasName("::a::b::C")))); - EXPECT_TRUE(matches("namespace a { namespace b { class C; } }", - recordDecl(hasName("b::C")))); - EXPECT_TRUE(matches("namespace a { namespace b { class C; } }", - recordDecl(hasName("C")))); - EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", - recordDecl(hasName("c::b::C")))); - EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", - recordDecl(hasName("a::c::C")))); - EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", - recordDecl(hasName("a::b::A")))); - EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", - recordDecl(hasName("::C")))); - EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", - recordDecl(hasName("::b::C")))); - EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", - recordDecl(hasName("z::a::b::C")))); - EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", - recordDecl(hasName("a+b::C")))); - EXPECT_TRUE(notMatches("namespace a { namespace b { class AC; } }", - recordDecl(hasName("C")))); -} - -TEST(Matcher, HasNameSupportsOuterClasses) { - EXPECT_TRUE( - matches("class A { class B { class C; }; };", - recordDecl(hasName("A::B::C")))); - EXPECT_TRUE( - matches("class A { class B { class C; }; };", - recordDecl(hasName("::A::B::C")))); - EXPECT_TRUE( - matches("class A { class B { class C; }; };", - recordDecl(hasName("B::C")))); - EXPECT_TRUE( - matches("class A { class B { class C; }; };", - recordDecl(hasName("C")))); - EXPECT_TRUE( - notMatches("class A { class B { class C; }; };", - recordDecl(hasName("c::B::C")))); - EXPECT_TRUE( - notMatches("class A { class B { class C; }; };", - recordDecl(hasName("A::c::C")))); - EXPECT_TRUE( - notMatches("class A { class B { class C; }; };", - recordDecl(hasName("A::B::A")))); - EXPECT_TRUE( - notMatches("class A { class B { class C; }; };", - recordDecl(hasName("::C")))); - EXPECT_TRUE( - notMatches("class A { class B { class C; }; };", - recordDecl(hasName("::B::C")))); - EXPECT_TRUE(notMatches("class A { class B { class C; }; };", - recordDecl(hasName("z::A::B::C")))); - EXPECT_TRUE( - notMatches("class A { class B { class C; }; };", - recordDecl(hasName("A+B::C")))); -} - -TEST(Matcher, HasNameSupportsInlinedNamespaces) { - std::string code = "namespace a { inline namespace b { class C; } }"; - EXPECT_TRUE(matches(code, recordDecl(hasName("a::b::C")))); - EXPECT_TRUE(matches(code, recordDecl(hasName("a::C")))); - EXPECT_TRUE(matches(code, recordDecl(hasName("::a::b::C")))); - EXPECT_TRUE(matches(code, recordDecl(hasName("::a::C")))); -} - -TEST(Matcher, HasNameSupportsAnonymousNamespaces) { - std::string code = "namespace a { namespace { class C; } }"; - EXPECT_TRUE( - matches(code, recordDecl(hasName("a::(anonymous namespace)::C")))); - EXPECT_TRUE(matches(code, recordDecl(hasName("a::C")))); - EXPECT_TRUE( - matches(code, recordDecl(hasName("::a::(anonymous namespace)::C")))); - EXPECT_TRUE(matches(code, recordDecl(hasName("::a::C")))); -} - -TEST(Matcher, HasNameSupportsAnonymousOuterClasses) { - EXPECT_TRUE(matches("class A { class { class C; } x; };", - recordDecl(hasName("A::(anonymous class)::C")))); - EXPECT_TRUE(matches("class A { class { class C; } x; };", - recordDecl(hasName("::A::(anonymous class)::C")))); - EXPECT_FALSE(matches("class A { class { class C; } x; };", - recordDecl(hasName("::A::C")))); - EXPECT_TRUE(matches("class A { struct { class C; } x; };", - recordDecl(hasName("A::(anonymous struct)::C")))); - EXPECT_TRUE(matches("class A { struct { class C; } x; };", - recordDecl(hasName("::A::(anonymous struct)::C")))); - EXPECT_FALSE(matches("class A { struct { class C; } x; };", - recordDecl(hasName("::A::C")))); -} - -TEST(Matcher, HasNameSupportsFunctionScope) { - std::string code = - "namespace a { void F(int a) { struct S { int m; }; int i; } }"; - EXPECT_TRUE(matches(code, varDecl(hasName("i")))); - EXPECT_FALSE(matches(code, varDecl(hasName("F()::i")))); - - EXPECT_TRUE(matches(code, fieldDecl(hasName("m")))); - EXPECT_TRUE(matches(code, fieldDecl(hasName("S::m")))); - EXPECT_TRUE(matches(code, fieldDecl(hasName("F(int)::S::m")))); - EXPECT_TRUE(matches(code, fieldDecl(hasName("a::F(int)::S::m")))); - EXPECT_TRUE(matches(code, fieldDecl(hasName("::a::F(int)::S::m")))); -} - -TEST(Matcher, HasAnyName) { - const std::string Code = "namespace a { namespace b { class C; } }"; - - EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("XX", "a::b::C")))); - EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("a::b::C", "XX")))); - EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("XX::C", "a::b::C")))); - EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("XX", "C")))); - - EXPECT_TRUE(notMatches(Code, recordDecl(hasAnyName("::C", "::b::C")))); - EXPECT_TRUE( - matches(Code, recordDecl(hasAnyName("::C", "::b::C", "::a::b::C")))); - - std::vector Names = {"::C", "::b::C", "::a::b::C"}; - EXPECT_TRUE(matches(Code, recordDecl(hasAnyName(Names)))); -} - -TEST(Matcher, IsDefinition) { - DeclarationMatcher DefinitionOfClassA = - recordDecl(hasName("A"), isDefinition()); - EXPECT_TRUE(matches("class A {};", DefinitionOfClassA)); - EXPECT_TRUE(notMatches("class A;", DefinitionOfClassA)); - - DeclarationMatcher DefinitionOfVariableA = - varDecl(hasName("a"), isDefinition()); - EXPECT_TRUE(matches("int a;", DefinitionOfVariableA)); - EXPECT_TRUE(notMatches("extern int a;", DefinitionOfVariableA)); - - DeclarationMatcher DefinitionOfMethodA = - cxxMethodDecl(hasName("a"), isDefinition()); - EXPECT_TRUE(matches("class A { void a() {} };", DefinitionOfMethodA)); - EXPECT_TRUE(notMatches("class A { void a(); };", DefinitionOfMethodA)); -} - -TEST(Matcher, OfClass) { - StatementMatcher Constructor = cxxConstructExpr(hasDeclaration(cxxMethodDecl( - ofClass(hasName("X"))))); - - EXPECT_TRUE( - matches("class X { public: X(); }; void x(int) { X x; }", Constructor)); - EXPECT_TRUE( - matches("class X { public: X(); }; void x(int) { X x = X(); }", - Constructor)); - EXPECT_TRUE( - notMatches("class Y { public: Y(); }; void x(int) { Y y; }", - Constructor)); -} - -TEST(Matcher, VisitsTemplateInstantiations) { - EXPECT_TRUE(matches( - "class A { public: void x(); };" - "template class B { public: void y() { T t; t.x(); } };" - "void f() { B b; b.y(); }", - callExpr(callee(cxxMethodDecl(hasName("x")))))); - - EXPECT_TRUE(matches( - "class A { public: void x(); };" - "class C {" - " public:" - " template class B { public: void y() { T t; t.x(); } };" - "};" - "void f() {" - " C::B b; b.y();" - "}", - recordDecl(hasName("C"), hasDescendant(callExpr( - callee(cxxMethodDecl(hasName("x")))))))); -} - -TEST(Matcher, HandlesNullQualTypes) { - // FIXME: Add a Type matcher so we can replace uses of this - // variable with Type(True()) - const TypeMatcher AnyType = anything(); - - // We don't really care whether this matcher succeeds; we're testing that - // it completes without crashing. - EXPECT_TRUE(matches( - "struct A { };" - "template " - "void f(T t) {" - " T local_t(t /* this becomes a null QualType in the AST */);" - "}" - "void g() {" - " f(0);" - "}", - expr(hasType(TypeMatcher( - anyOf( - TypeMatcher(hasDeclaration(anything())), - pointsTo(AnyType), - references(AnyType) - // Other QualType matchers should go here. - )))))); -} - -// For testing AST_MATCHER_P(). -AST_MATCHER_P(Decl, just, internal::Matcher, AMatcher) { - // Make sure all special variables are used: node, match_finder, - // bound_nodes_builder, and the parameter named 'AMatcher'. - return AMatcher.matches(Node, Finder, Builder); -} - -TEST(AstMatcherPMacro, Works) { - DeclarationMatcher HasClassB = just(has(recordDecl(hasName("B")).bind("b"))); - - EXPECT_TRUE(matchAndVerifyResultTrue("class A { class B {}; };", - HasClassB, llvm::make_unique>("b"))); - - EXPECT_TRUE(matchAndVerifyResultFalse("class A { class B {}; };", - HasClassB, llvm::make_unique>("a"))); - - EXPECT_TRUE(matchAndVerifyResultFalse("class A { class C {}; };", - HasClassB, llvm::make_unique>("b"))); -} - -AST_POLYMORPHIC_MATCHER_P(polymorphicHas, - AST_POLYMORPHIC_SUPPORTED_TYPES(Decl, Stmt), - internal::Matcher, AMatcher) { - return Finder->matchesChildOf( - Node, AMatcher, Builder, - ASTMatchFinder::TK_IgnoreImplicitCastsAndParentheses, - ASTMatchFinder::BK_First); -} - -TEST(AstPolymorphicMatcherPMacro, Works) { - DeclarationMatcher HasClassB = - polymorphicHas(recordDecl(hasName("B")).bind("b")); - - EXPECT_TRUE(matchAndVerifyResultTrue("class A { class B {}; };", - HasClassB, llvm::make_unique>("b"))); - - EXPECT_TRUE(matchAndVerifyResultFalse("class A { class B {}; };", - HasClassB, llvm::make_unique>("a"))); - - EXPECT_TRUE(matchAndVerifyResultFalse("class A { class C {}; };", - HasClassB, llvm::make_unique>("b"))); - - StatementMatcher StatementHasClassB = - polymorphicHas(recordDecl(hasName("B"))); - - EXPECT_TRUE(matches("void x() { class B {}; }", StatementHasClassB)); -} - -TEST(For, FindsForLoops) { - EXPECT_TRUE(matches("void f() { for(;;); }", forStmt())); - EXPECT_TRUE(matches("void f() { if(true) for(;;); }", forStmt())); - EXPECT_TRUE(notMatches("int as[] = { 1, 2, 3 };" - "void f() { for (auto &a : as); }", - forStmt())); -} - -TEST(For, ForLoopInternals) { - EXPECT_TRUE(matches("void f(){ int i; for (; i < 3 ; ); }", - forStmt(hasCondition(anything())))); - EXPECT_TRUE(matches("void f() { for (int i = 0; ;); }", - forStmt(hasLoopInit(anything())))); -} - -TEST(For, ForRangeLoopInternals) { - EXPECT_TRUE(matches("void f(){ int a[] {1, 2}; for (int i : a); }", - cxxForRangeStmt(hasLoopVariable(anything())))); - EXPECT_TRUE(matches( - "void f(){ int a[] {1, 2}; for (int i : a); }", - cxxForRangeStmt(hasRangeInit(declRefExpr(to(varDecl(hasName("a")))))))); -} - -TEST(For, NegativeForLoopInternals) { - EXPECT_TRUE(notMatches("void f(){ for (int i = 0; ; ++i); }", - forStmt(hasCondition(expr())))); - EXPECT_TRUE(notMatches("void f() {int i; for (; i < 4; ++i) {} }", - forStmt(hasLoopInit(anything())))); -} - -TEST(For, ReportsNoFalsePositives) { - EXPECT_TRUE(notMatches("void f() { ; }", forStmt())); - EXPECT_TRUE(notMatches("void f() { if(true); }", forStmt())); -} - -TEST(CompoundStatement, HandlesSimpleCases) { - EXPECT_TRUE(notMatches("void f();", compoundStmt())); - EXPECT_TRUE(matches("void f() {}", compoundStmt())); - EXPECT_TRUE(matches("void f() {{}}", compoundStmt())); -} - -TEST(CompoundStatement, DoesNotMatchEmptyStruct) { - // It's not a compound statement just because there's "{}" in the source - // text. This is an AST search, not grep. - EXPECT_TRUE(notMatches("namespace n { struct S {}; }", - compoundStmt())); - EXPECT_TRUE(matches("namespace n { struct S { void f() {{}} }; }", - compoundStmt())); -} - -TEST(HasBody, FindsBodyOfForWhileDoLoops) { - EXPECT_TRUE(matches("void f() { for(;;) {} }", - forStmt(hasBody(compoundStmt())))); - EXPECT_TRUE(notMatches("void f() { for(;;); }", - forStmt(hasBody(compoundStmt())))); - EXPECT_TRUE(matches("void f() { while(true) {} }", - whileStmt(hasBody(compoundStmt())))); - EXPECT_TRUE(matches("void f() { do {} while(true); }", - doStmt(hasBody(compoundStmt())))); - EXPECT_TRUE(matches("void f() { int p[2]; for (auto x : p) {} }", - cxxForRangeStmt(hasBody(compoundStmt())))); - EXPECT_TRUE(matches("void f() {}", functionDecl(hasBody(compoundStmt())))); - EXPECT_TRUE(notMatches("void f();", functionDecl(hasBody(compoundStmt())))); - EXPECT_TRUE(matches("void f(); void f() {}", - functionDecl(hasBody(compoundStmt())))); -} - -TEST(HasAnySubstatement, MatchesForTopLevelCompoundStatement) { - // The simplest case: every compound statement is in a function - // definition, and the function body itself must be a compound - // statement. - EXPECT_TRUE(matches("void f() { for (;;); }", - compoundStmt(hasAnySubstatement(forStmt())))); -} - -TEST(HasAnySubstatement, IsNotRecursive) { - // It's really "has any immediate substatement". - EXPECT_TRUE(notMatches("void f() { if (true) for (;;); }", - compoundStmt(hasAnySubstatement(forStmt())))); -} - -TEST(HasAnySubstatement, MatchesInNestedCompoundStatements) { - EXPECT_TRUE(matches("void f() { if (true) { for (;;); } }", - compoundStmt(hasAnySubstatement(forStmt())))); -} - -TEST(HasAnySubstatement, FindsSubstatementBetweenOthers) { - EXPECT_TRUE(matches("void f() { 1; 2; 3; for (;;); 4; 5; 6; }", - compoundStmt(hasAnySubstatement(forStmt())))); -} - -TEST(StatementCountIs, FindsNoStatementsInAnEmptyCompoundStatement) { - EXPECT_TRUE(matches("void f() { }", - compoundStmt(statementCountIs(0)))); - EXPECT_TRUE(notMatches("void f() {}", - compoundStmt(statementCountIs(1)))); -} - -TEST(StatementCountIs, AppearsToMatchOnlyOneCount) { - EXPECT_TRUE(matches("void f() { 1; }", - compoundStmt(statementCountIs(1)))); - EXPECT_TRUE(notMatches("void f() { 1; }", - compoundStmt(statementCountIs(0)))); - EXPECT_TRUE(notMatches("void f() { 1; }", - compoundStmt(statementCountIs(2)))); -} - -TEST(StatementCountIs, WorksWithMultipleStatements) { - EXPECT_TRUE(matches("void f() { 1; 2; 3; }", - compoundStmt(statementCountIs(3)))); -} - -TEST(StatementCountIs, WorksWithNestedCompoundStatements) { - EXPECT_TRUE(matches("void f() { { 1; } { 1; 2; 3; 4; } }", - compoundStmt(statementCountIs(1)))); - EXPECT_TRUE(matches("void f() { { 1; } { 1; 2; 3; 4; } }", - compoundStmt(statementCountIs(2)))); - EXPECT_TRUE(notMatches("void f() { { 1; } { 1; 2; 3; 4; } }", - compoundStmt(statementCountIs(3)))); - EXPECT_TRUE(matches("void f() { { 1; } { 1; 2; 3; 4; } }", - compoundStmt(statementCountIs(4)))); -} - -TEST(Member, WorksInSimplestCase) { - EXPECT_TRUE(matches("struct { int first; } s; int i(s.first);", - memberExpr(member(hasName("first"))))); -} - -TEST(Member, DoesNotMatchTheBaseExpression) { - // Don't pick out the wrong part of the member expression, this should - // be checking the member (name) only. - EXPECT_TRUE(notMatches("struct { int i; } first; int i(first.i);", - memberExpr(member(hasName("first"))))); -} - -TEST(Member, MatchesInMemberFunctionCall) { - EXPECT_TRUE(matches("void f() {" - " struct { void first() {}; } s;" - " s.first();" - "};", - memberExpr(member(hasName("first"))))); -} - -TEST(Member, MatchesMember) { - EXPECT_TRUE(matches( - "struct A { int i; }; void f() { A a; a.i = 2; }", - memberExpr(hasDeclaration(fieldDecl(hasType(isInteger())))))); - EXPECT_TRUE(notMatches( - "struct A { float f; }; void f() { A a; a.f = 2.0f; }", - memberExpr(hasDeclaration(fieldDecl(hasType(isInteger())))))); -} - -TEST(Member, UnderstandsAccess) { - EXPECT_TRUE(matches( - "struct A { int i; };", fieldDecl(isPublic(), hasName("i")))); - EXPECT_TRUE(notMatches( - "struct A { int i; };", fieldDecl(isProtected(), hasName("i")))); - EXPECT_TRUE(notMatches( - "struct A { int i; };", fieldDecl(isPrivate(), hasName("i")))); - - EXPECT_TRUE(notMatches( - "class A { int i; };", fieldDecl(isPublic(), hasName("i")))); - EXPECT_TRUE(notMatches( - "class A { int i; };", fieldDecl(isProtected(), hasName("i")))); - EXPECT_TRUE(matches( - "class A { int i; };", fieldDecl(isPrivate(), hasName("i")))); - - EXPECT_TRUE(notMatches( - "class A { protected: int i; };", fieldDecl(isPublic(), hasName("i")))); - EXPECT_TRUE(matches("class A { protected: int i; };", - fieldDecl(isProtected(), hasName("i")))); - EXPECT_TRUE(notMatches( - "class A { protected: int i; };", fieldDecl(isPrivate(), hasName("i")))); - - // Non-member decls have the AccessSpecifier AS_none and thus aren't matched. - EXPECT_TRUE(notMatches("int i;", varDecl(isPublic(), hasName("i")))); - EXPECT_TRUE(notMatches("int i;", varDecl(isProtected(), hasName("i")))); - EXPECT_TRUE(notMatches("int i;", varDecl(isPrivate(), hasName("i")))); -} - -TEST(Member, MatchesMemberAllocationFunction) { - // Fails in C++11 mode - EXPECT_TRUE(matchesConditionally( - "namespace std { typedef typeof(sizeof(int)) size_t; }" - "class X { void *operator new(std::size_t); };", - cxxMethodDecl(ofClass(hasName("X"))), true, "-std=gnu++98")); - - EXPECT_TRUE(matches("class X { void operator delete(void*); };", - cxxMethodDecl(ofClass(hasName("X"))))); - - // Fails in C++11 mode - EXPECT_TRUE(matchesConditionally( - "namespace std { typedef typeof(sizeof(int)) size_t; }" - "class X { void operator delete[](void*, std::size_t); };", - cxxMethodDecl(ofClass(hasName("X"))), true, "-std=gnu++98")); -} - -TEST(HasObjectExpression, DoesNotMatchMember) { - EXPECT_TRUE(notMatches( - "class X {}; struct Z { X m; }; void f(Z z) { z.m; }", - memberExpr(hasObjectExpression(hasType(recordDecl(hasName("X"))))))); -} - -TEST(HasObjectExpression, MatchesBaseOfVariable) { - EXPECT_TRUE(matches( - "struct X { int m; }; void f(X x) { x.m; }", - memberExpr(hasObjectExpression(hasType(recordDecl(hasName("X"))))))); - EXPECT_TRUE(matches( - "struct X { int m; }; void f(X* x) { x->m; }", - memberExpr(hasObjectExpression( - hasType(pointsTo(recordDecl(hasName("X")))))))); -} - -TEST(HasObjectExpression, - MatchesObjectExpressionOfImplicitlyFormedMemberExpression) { - EXPECT_TRUE(matches( - "class X {}; struct S { X m; void f() { this->m; } };", - memberExpr(hasObjectExpression( - hasType(pointsTo(recordDecl(hasName("S")))))))); - EXPECT_TRUE(matches( - "class X {}; struct S { X m; void f() { m; } };", - memberExpr(hasObjectExpression( - hasType(pointsTo(recordDecl(hasName("S")))))))); -} - -TEST(Field, DoesNotMatchNonFieldMembers) { - EXPECT_TRUE(notMatches("class X { void m(); };", fieldDecl(hasName("m")))); - EXPECT_TRUE(notMatches("class X { class m {}; };", fieldDecl(hasName("m")))); - EXPECT_TRUE(notMatches("class X { enum { m }; };", fieldDecl(hasName("m")))); - EXPECT_TRUE(notMatches("class X { enum m {}; };", fieldDecl(hasName("m")))); -} - -TEST(Field, MatchesField) { - EXPECT_TRUE(matches("class X { int m; };", fieldDecl(hasName("m")))); -} - -TEST(IsVolatileQualified, QualifiersMatch) { - EXPECT_TRUE(matches("volatile int i = 42;", - varDecl(hasType(isVolatileQualified())))); - EXPECT_TRUE(notMatches("volatile int *i;", - varDecl(hasType(isVolatileQualified())))); - EXPECT_TRUE(matches("typedef volatile int v_int; v_int i = 42;", - varDecl(hasType(isVolatileQualified())))); -} - -TEST(IsConstQualified, MatchesConstInt) { - EXPECT_TRUE(matches("const int i = 42;", - varDecl(hasType(isConstQualified())))); -} - -TEST(IsConstQualified, MatchesConstPointer) { - EXPECT_TRUE(matches("int i = 42; int* const p(&i);", - varDecl(hasType(isConstQualified())))); -} - -TEST(IsConstQualified, MatchesThroughTypedef) { - EXPECT_TRUE(matches("typedef const int const_int; const_int i = 42;", - varDecl(hasType(isConstQualified())))); - EXPECT_TRUE(matches("typedef int* int_ptr; const int_ptr p(0);", - varDecl(hasType(isConstQualified())))); -} - -TEST(IsConstQualified, DoesNotMatchInappropriately) { - EXPECT_TRUE(notMatches("typedef int nonconst_int; nonconst_int i = 42;", - varDecl(hasType(isConstQualified())))); - EXPECT_TRUE(notMatches("int const* p;", - varDecl(hasType(isConstQualified())))); -} - -TEST(CastExpression, MatchesExplicitCasts) { - EXPECT_TRUE(matches("char *p = reinterpret_cast(&p);",castExpr())); - EXPECT_TRUE(matches("void *p = (void *)(&p);", castExpr())); - EXPECT_TRUE(matches("char q, *p = const_cast(&q);", castExpr())); - EXPECT_TRUE(matches("char c = char(0);", castExpr())); -} -TEST(CastExpression, MatchesImplicitCasts) { - // This test creates an implicit cast from int to char. - EXPECT_TRUE(matches("char c = 0;", castExpr())); - // This test creates an implicit cast from lvalue to rvalue. - EXPECT_TRUE(matches("char c = 0, d = c;", castExpr())); -} - -TEST(CastExpression, DoesNotMatchNonCasts) { - EXPECT_TRUE(notMatches("char c = '0';", castExpr())); - EXPECT_TRUE(notMatches("char c, &q = c;", castExpr())); - EXPECT_TRUE(notMatches("int i = (0);", castExpr())); - EXPECT_TRUE(notMatches("int i = 0;", castExpr())); -} - -TEST(ReinterpretCast, MatchesSimpleCase) { - EXPECT_TRUE(matches("char* p = reinterpret_cast(&p);", - cxxReinterpretCastExpr())); -} - -TEST(ReinterpretCast, DoesNotMatchOtherCasts) { - EXPECT_TRUE(notMatches("char* p = (char*)(&p);", cxxReinterpretCastExpr())); - EXPECT_TRUE(notMatches("char q, *p = const_cast(&q);", - cxxReinterpretCastExpr())); - EXPECT_TRUE(notMatches("void* p = static_cast(&p);", - cxxReinterpretCastExpr())); - EXPECT_TRUE(notMatches("struct B { virtual ~B() {} }; struct D : B {};" - "B b;" - "D* p = dynamic_cast(&b);", - cxxReinterpretCastExpr())); -} - -TEST(FunctionalCast, MatchesSimpleCase) { - std::string foo_class = "class Foo { public: Foo(const char*); };"; - EXPECT_TRUE(matches(foo_class + "void r() { Foo f = Foo(\"hello world\"); }", - cxxFunctionalCastExpr())); -} - -TEST(FunctionalCast, DoesNotMatchOtherCasts) { - std::string FooClass = "class Foo { public: Foo(const char*); };"; - EXPECT_TRUE( - notMatches(FooClass + "void r() { Foo f = (Foo) \"hello world\"; }", - cxxFunctionalCastExpr())); - EXPECT_TRUE( - notMatches(FooClass + "void r() { Foo f = \"hello world\"; }", - cxxFunctionalCastExpr())); -} - -TEST(DynamicCast, MatchesSimpleCase) { - EXPECT_TRUE(matches("struct B { virtual ~B() {} }; struct D : B {};" - "B b;" - "D* p = dynamic_cast(&b);", - cxxDynamicCastExpr())); -} - -TEST(StaticCast, MatchesSimpleCase) { - EXPECT_TRUE(matches("void* p(static_cast(&p));", - cxxStaticCastExpr())); -} - -TEST(StaticCast, DoesNotMatchOtherCasts) { - EXPECT_TRUE(notMatches("char* p = (char*)(&p);", cxxStaticCastExpr())); - EXPECT_TRUE(notMatches("char q, *p = const_cast(&q);", - cxxStaticCastExpr())); - EXPECT_TRUE(notMatches("void* p = reinterpret_cast(&p);", - cxxStaticCastExpr())); - EXPECT_TRUE(notMatches("struct B { virtual ~B() {} }; struct D : B {};" - "B b;" - "D* p = dynamic_cast(&b);", - cxxStaticCastExpr())); -} - -TEST(CStyleCast, MatchesSimpleCase) { - EXPECT_TRUE(matches("int i = (int) 2.2f;", cStyleCastExpr())); -} - -TEST(CStyleCast, DoesNotMatchOtherCasts) { - EXPECT_TRUE(notMatches("char* p = static_cast(0);" - "char q, *r = const_cast(&q);" - "void* s = reinterpret_cast(&s);" - "struct B { virtual ~B() {} }; struct D : B {};" - "B b;" - "D* t = dynamic_cast(&b);", - cStyleCastExpr())); -} - -TEST(HasDestinationType, MatchesSimpleCase) { - EXPECT_TRUE(matches("char* p = static_cast(0);", - cxxStaticCastExpr(hasDestinationType( - pointsTo(TypeMatcher(anything())))))); -} - -TEST(HasImplicitDestinationType, MatchesSimpleCase) { - // This test creates an implicit const cast. - EXPECT_TRUE(matches("int x; const int i = x;", - implicitCastExpr( - hasImplicitDestinationType(isInteger())))); - // This test creates an implicit array-to-pointer cast. - EXPECT_TRUE(matches("int arr[3]; int *p = arr;", - implicitCastExpr(hasImplicitDestinationType( - pointsTo(TypeMatcher(anything())))))); -} - -TEST(HasImplicitDestinationType, DoesNotMatchIncorrectly) { - // This test creates an implicit cast from int to char. - EXPECT_TRUE(notMatches("char c = 0;", - implicitCastExpr(hasImplicitDestinationType( - unless(anything()))))); - // This test creates an implicit array-to-pointer cast. - EXPECT_TRUE(notMatches("int arr[3]; int *p = arr;", - implicitCastExpr(hasImplicitDestinationType( - unless(anything()))))); -} - -TEST(ImplicitCast, MatchesSimpleCase) { - // This test creates an implicit const cast. - EXPECT_TRUE(matches("int x = 0; const int y = x;", - varDecl(hasInitializer(implicitCastExpr())))); - // This test creates an implicit cast from int to char. - EXPECT_TRUE(matches("char c = 0;", - varDecl(hasInitializer(implicitCastExpr())))); - // This test creates an implicit array-to-pointer cast. - EXPECT_TRUE(matches("int arr[6]; int *p = arr;", - varDecl(hasInitializer(implicitCastExpr())))); -} - -TEST(ImplicitCast, DoesNotMatchIncorrectly) { - // This test verifies that implicitCastExpr() matches exactly when implicit casts - // are present, and that it ignores explicit and paren casts. - - // These two test cases have no casts. - EXPECT_TRUE(notMatches("int x = 0;", - varDecl(hasInitializer(implicitCastExpr())))); - EXPECT_TRUE(notMatches("int x = 0, &y = x;", - varDecl(hasInitializer(implicitCastExpr())))); - - EXPECT_TRUE(notMatches("int x = 0; double d = (double) x;", - varDecl(hasInitializer(implicitCastExpr())))); - EXPECT_TRUE(notMatches("const int *p; int *q = const_cast(p);", - varDecl(hasInitializer(implicitCastExpr())))); - - EXPECT_TRUE(notMatches("int x = (0);", - varDecl(hasInitializer(implicitCastExpr())))); -} - -TEST(IgnoringImpCasts, MatchesImpCasts) { - // This test checks that ignoringImpCasts matches when implicit casts are - // present and its inner matcher alone does not match. - // Note that this test creates an implicit const cast. - EXPECT_TRUE(matches("int x = 0; const int y = x;", - varDecl(hasInitializer(ignoringImpCasts( - declRefExpr(to(varDecl(hasName("x"))))))))); - // This test creates an implict cast from int to char. - EXPECT_TRUE(matches("char x = 0;", - varDecl(hasInitializer(ignoringImpCasts( - integerLiteral(equals(0))))))); -} - -TEST(IgnoringImpCasts, DoesNotMatchIncorrectly) { - // These tests verify that ignoringImpCasts does not match if the inner - // matcher does not match. - // Note that the first test creates an implicit const cast. - EXPECT_TRUE(notMatches("int x; const int y = x;", - varDecl(hasInitializer(ignoringImpCasts( - unless(anything())))))); - EXPECT_TRUE(notMatches("int x; int y = x;", - varDecl(hasInitializer(ignoringImpCasts( - unless(anything())))))); - - // These tests verify that ignoringImplictCasts does not look through explicit - // casts or parentheses. - EXPECT_TRUE(notMatches("char* p = static_cast(0);", - varDecl(hasInitializer(ignoringImpCasts( - integerLiteral()))))); - EXPECT_TRUE(notMatches("int i = (0);", - varDecl(hasInitializer(ignoringImpCasts( - integerLiteral()))))); - EXPECT_TRUE(notMatches("float i = (float)0;", - varDecl(hasInitializer(ignoringImpCasts( - integerLiteral()))))); - EXPECT_TRUE(notMatches("float i = float(0);", - varDecl(hasInitializer(ignoringImpCasts( - integerLiteral()))))); -} - -TEST(IgnoringImpCasts, MatchesWithoutImpCasts) { - // This test verifies that expressions that do not have implicit casts - // still match the inner matcher. - EXPECT_TRUE(matches("int x = 0; int &y = x;", - varDecl(hasInitializer(ignoringImpCasts( - declRefExpr(to(varDecl(hasName("x"))))))))); -} - -TEST(IgnoringParenCasts, MatchesParenCasts) { - // This test checks that ignoringParenCasts matches when parentheses and/or - // casts are present and its inner matcher alone does not match. - EXPECT_TRUE(matches("int x = (0);", - varDecl(hasInitializer(ignoringParenCasts( - integerLiteral(equals(0))))))); - EXPECT_TRUE(matches("int x = (((((0)))));", - varDecl(hasInitializer(ignoringParenCasts( - integerLiteral(equals(0))))))); - - // This test creates an implict cast from int to char in addition to the - // parentheses. - EXPECT_TRUE(matches("char x = (0);", - varDecl(hasInitializer(ignoringParenCasts( - integerLiteral(equals(0))))))); - - EXPECT_TRUE(matches("char x = (char)0;", - varDecl(hasInitializer(ignoringParenCasts( - integerLiteral(equals(0))))))); - EXPECT_TRUE(matches("char* p = static_cast(0);", - varDecl(hasInitializer(ignoringParenCasts( - integerLiteral(equals(0))))))); -} - -TEST(IgnoringParenCasts, MatchesWithoutParenCasts) { - // This test verifies that expressions that do not have any casts still match. - EXPECT_TRUE(matches("int x = 0;", - varDecl(hasInitializer(ignoringParenCasts( - integerLiteral(equals(0))))))); -} - -TEST(IgnoringParenCasts, DoesNotMatchIncorrectly) { - // These tests verify that ignoringImpCasts does not match if the inner - // matcher does not match. - EXPECT_TRUE(notMatches("int x = ((0));", - varDecl(hasInitializer(ignoringParenCasts( - unless(anything())))))); - - // This test creates an implicit cast from int to char in addition to the - // parentheses. - EXPECT_TRUE(notMatches("char x = ((0));", - varDecl(hasInitializer(ignoringParenCasts( - unless(anything())))))); - - EXPECT_TRUE(notMatches("char *x = static_cast((0));", - varDecl(hasInitializer(ignoringParenCasts( - unless(anything())))))); -} - -TEST(IgnoringParenAndImpCasts, MatchesParenImpCasts) { - // This test checks that ignoringParenAndImpCasts matches when - // parentheses and/or implicit casts are present and its inner matcher alone - // does not match. - // Note that this test creates an implicit const cast. - EXPECT_TRUE(matches("int x = 0; const int y = x;", - varDecl(hasInitializer(ignoringParenImpCasts( - declRefExpr(to(varDecl(hasName("x"))))))))); - // This test creates an implicit cast from int to char. - EXPECT_TRUE(matches("const char x = (0);", - varDecl(hasInitializer(ignoringParenImpCasts( - integerLiteral(equals(0))))))); -} - -TEST(IgnoringParenAndImpCasts, MatchesWithoutParenImpCasts) { - // This test verifies that expressions that do not have parentheses or - // implicit casts still match. - EXPECT_TRUE(matches("int x = 0; int &y = x;", - varDecl(hasInitializer(ignoringParenImpCasts( - declRefExpr(to(varDecl(hasName("x"))))))))); - EXPECT_TRUE(matches("int x = 0;", - varDecl(hasInitializer(ignoringParenImpCasts( - integerLiteral(equals(0))))))); -} - -TEST(IgnoringParenAndImpCasts, DoesNotMatchIncorrectly) { - // These tests verify that ignoringParenImpCasts does not match if - // the inner matcher does not match. - // This test creates an implicit cast. - EXPECT_TRUE(notMatches("char c = ((3));", - varDecl(hasInitializer(ignoringParenImpCasts( - unless(anything())))))); - // These tests verify that ignoringParenAndImplictCasts does not look - // through explicit casts. - EXPECT_TRUE(notMatches("float y = (float(0));", - varDecl(hasInitializer(ignoringParenImpCasts( - integerLiteral()))))); - EXPECT_TRUE(notMatches("float y = (float)0;", - varDecl(hasInitializer(ignoringParenImpCasts( - integerLiteral()))))); - EXPECT_TRUE(notMatches("char* p = static_cast(0);", - varDecl(hasInitializer(ignoringParenImpCasts( - integerLiteral()))))); -} - -TEST(HasSourceExpression, MatchesImplicitCasts) { - EXPECT_TRUE(matches("class string {}; class URL { public: URL(string s); };" - "void r() {string a_string; URL url = a_string; }", - implicitCastExpr( - hasSourceExpression(cxxConstructExpr())))); -} - -TEST(HasSourceExpression, MatchesExplicitCasts) { - EXPECT_TRUE(matches("float x = static_cast(42);", - explicitCastExpr( - hasSourceExpression(hasDescendant( - expr(integerLiteral())))))); -} - -TEST(Statement, DoesNotMatchDeclarations) { - EXPECT_TRUE(notMatches("class X {};", stmt())); -} - -TEST(Statement, MatchesCompoundStatments) { - EXPECT_TRUE(matches("void x() {}", stmt())); -} - -TEST(DeclarationStatement, DoesNotMatchCompoundStatements) { - EXPECT_TRUE(notMatches("void x() {}", declStmt())); -} - -TEST(DeclarationStatement, MatchesVariableDeclarationStatements) { - EXPECT_TRUE(matches("void x() { int a; }", declStmt())); -} - -TEST(ExprWithCleanups, MatchesExprWithCleanups) { - EXPECT_TRUE(matches("struct Foo { ~Foo(); };" - "const Foo f = Foo();", - varDecl(hasInitializer(exprWithCleanups())))); - EXPECT_FALSE(matches("struct Foo { };" - "const Foo f = Foo();", - varDecl(hasInitializer(exprWithCleanups())))); -} - -TEST(InitListExpression, MatchesInitListExpression) { - EXPECT_TRUE(matches("int a[] = { 1, 2 };", - initListExpr(hasType(asString("int [2]"))))); - EXPECT_TRUE(matches("struct B { int x, y; }; B b = { 5, 6 };", - initListExpr(hasType(recordDecl(hasName("B")))))); - EXPECT_TRUE(matches("struct S { S(void (*a)()); };" - "void f();" - "S s[1] = { &f };", - declRefExpr(to(functionDecl(hasName("f")))))); - EXPECT_TRUE( - matches("int i[1] = {42, [0] = 43};", integerLiteral(equals(42)))); -} - -TEST(UsingDeclaration, MatchesUsingDeclarations) { - EXPECT_TRUE(matches("namespace X { int x; } using X::x;", - usingDecl())); -} - -TEST(UsingDeclaration, MatchesShadowUsingDelcarations) { - EXPECT_TRUE(matches("namespace f { int a; } using f::a;", - usingDecl(hasAnyUsingShadowDecl(hasName("a"))))); -} - -TEST(UsingDeclaration, MatchesSpecificTarget) { - EXPECT_TRUE(matches("namespace f { int a; void b(); } using f::b;", - usingDecl(hasAnyUsingShadowDecl( - hasTargetDecl(functionDecl()))))); - EXPECT_TRUE(notMatches("namespace f { int a; void b(); } using f::a;", - usingDecl(hasAnyUsingShadowDecl( - hasTargetDecl(functionDecl()))))); -} - -TEST(UsingDeclaration, ThroughUsingDeclaration) { - EXPECT_TRUE(matches( - "namespace a { void f(); } using a::f; void g() { f(); }", - declRefExpr(throughUsingDecl(anything())))); - EXPECT_TRUE(notMatches( - "namespace a { void f(); } using a::f; void g() { a::f(); }", - declRefExpr(throughUsingDecl(anything())))); -} - -TEST(UsingDirectiveDeclaration, MatchesUsingNamespace) { - EXPECT_TRUE(matches("namespace X { int x; } using namespace X;", - usingDirectiveDecl())); - EXPECT_FALSE( - matches("namespace X { int x; } using X::x;", usingDirectiveDecl())); -} - -TEST(SingleDecl, IsSingleDecl) { - StatementMatcher SingleDeclStmt = - declStmt(hasSingleDecl(varDecl(hasInitializer(anything())))); - EXPECT_TRUE(matches("void f() {int a = 4;}", SingleDeclStmt)); - EXPECT_TRUE(notMatches("void f() {int a;}", SingleDeclStmt)); - EXPECT_TRUE(notMatches("void f() {int a = 4, b = 3;}", - SingleDeclStmt)); -} - -TEST(DeclStmt, ContainsDeclaration) { - DeclarationMatcher MatchesInit = varDecl(hasInitializer(anything())); - - EXPECT_TRUE(matches("void f() {int a = 4;}", - declStmt(containsDeclaration(0, MatchesInit)))); - EXPECT_TRUE(matches("void f() {int a = 4, b = 3;}", - declStmt(containsDeclaration(0, MatchesInit), - containsDeclaration(1, MatchesInit)))); - unsigned WrongIndex = 42; - EXPECT_TRUE(notMatches("void f() {int a = 4, b = 3;}", - declStmt(containsDeclaration(WrongIndex, - MatchesInit)))); -} - -TEST(DeclCount, DeclCountIsCorrect) { - EXPECT_TRUE(matches("void f() {int i,j;}", - declStmt(declCountIs(2)))); - EXPECT_TRUE(notMatches("void f() {int i,j; int k;}", - declStmt(declCountIs(3)))); - EXPECT_TRUE(notMatches("void f() {int i,j, k, l;}", - declStmt(declCountIs(3)))); -} - -TEST(While, MatchesWhileLoops) { - EXPECT_TRUE(notMatches("void x() {}", whileStmt())); - EXPECT_TRUE(matches("void x() { while(true); }", whileStmt())); - EXPECT_TRUE(notMatches("void x() { do {} while(true); }", whileStmt())); -} - -TEST(Do, MatchesDoLoops) { - EXPECT_TRUE(matches("void x() { do {} while(true); }", doStmt())); - EXPECT_TRUE(matches("void x() { do ; while(false); }", doStmt())); -} - -TEST(Do, DoesNotMatchWhileLoops) { - EXPECT_TRUE(notMatches("void x() { while(true) {} }", doStmt())); -} - -TEST(SwitchCase, MatchesCase) { - EXPECT_TRUE(matches("void x() { switch(42) { case 42:; } }", switchCase())); - EXPECT_TRUE(matches("void x() { switch(42) { default:; } }", switchCase())); - EXPECT_TRUE(matches("void x() { switch(42) default:; }", switchCase())); - EXPECT_TRUE(notMatches("void x() { switch(42) {} }", switchCase())); -} - -TEST(SwitchCase, MatchesSwitch) { - EXPECT_TRUE(matches("void x() { switch(42) { case 42:; } }", switchStmt())); - EXPECT_TRUE(matches("void x() { switch(42) { default:; } }", switchStmt())); - EXPECT_TRUE(matches("void x() { switch(42) default:; }", switchStmt())); - EXPECT_TRUE(notMatches("void x() {}", switchStmt())); -} - -TEST(SwitchCase, MatchesEachCase) { - EXPECT_TRUE(notMatches("void x() { switch(42); }", - switchStmt(forEachSwitchCase(caseStmt())))); - EXPECT_TRUE(matches("void x() { switch(42) case 42:; }", - switchStmt(forEachSwitchCase(caseStmt())))); - EXPECT_TRUE(matches("void x() { switch(42) { case 42:; } }", - switchStmt(forEachSwitchCase(caseStmt())))); - EXPECT_TRUE(notMatches( - "void x() { if (1) switch(42) { case 42: switch (42) { default:; } } }", - ifStmt(has(switchStmt(forEachSwitchCase(defaultStmt())))))); - EXPECT_TRUE(matches("void x() { switch(42) { case 1+1: case 4:; } }", - switchStmt(forEachSwitchCase( - caseStmt(hasCaseConstant(integerLiteral())))))); - EXPECT_TRUE(notMatches("void x() { switch(42) { case 1+1: case 2+2:; } }", - switchStmt(forEachSwitchCase( - caseStmt(hasCaseConstant(integerLiteral())))))); - EXPECT_TRUE(notMatches("void x() { switch(42) { case 1 ... 2:; } }", - switchStmt(forEachSwitchCase( - caseStmt(hasCaseConstant(integerLiteral())))))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "void x() { switch (42) { case 1: case 2: case 3: default:; } }", - switchStmt(forEachSwitchCase(caseStmt().bind("x"))), - llvm::make_unique>("x", 3))); -} - -TEST(ForEachConstructorInitializer, MatchesInitializers) { - EXPECT_TRUE(matches( - "struct X { X() : i(42), j(42) {} int i, j; };", - cxxConstructorDecl(forEachConstructorInitializer(cxxCtorInitializer())))); -} - -TEST(ExceptionHandling, SimpleCases) { - EXPECT_TRUE(matches("void foo() try { } catch(int X) { }", cxxCatchStmt())); - EXPECT_TRUE(matches("void foo() try { } catch(int X) { }", cxxTryStmt())); - EXPECT_TRUE( - notMatches("void foo() try { } catch(int X) { }", cxxThrowExpr())); - EXPECT_TRUE(matches("void foo() try { throw; } catch(int X) { }", - cxxThrowExpr())); - EXPECT_TRUE(matches("void foo() try { throw 5;} catch(int X) { }", - cxxThrowExpr())); - EXPECT_TRUE(matches("void foo() try { throw; } catch(...) { }", - cxxCatchStmt(isCatchAll()))); - EXPECT_TRUE(notMatches("void foo() try { throw; } catch(int) { }", - cxxCatchStmt(isCatchAll()))); - EXPECT_TRUE(matches("void foo() try {} catch(int X) { }", - varDecl(isExceptionVariable()))); - EXPECT_TRUE(notMatches("void foo() try { int X; } catch (...) { }", - varDecl(isExceptionVariable()))); -} - -TEST(ParenExpression, SimpleCases) { - EXPECT_TRUE(matches("int i = (3);", parenExpr())); - EXPECT_TRUE(matches("int i = (3 + 7);", parenExpr())); - EXPECT_TRUE(notMatches("int i = 3;", parenExpr())); - EXPECT_TRUE(notMatches("int foo() { return 1; }; int a = foo();", - parenExpr())); -} - -TEST(HasConditionVariableStatement, DoesNotMatchCondition) { - EXPECT_TRUE(notMatches( - "void x() { if(true) {} }", - ifStmt(hasConditionVariableStatement(declStmt())))); - EXPECT_TRUE(notMatches( - "void x() { int x; if((x = 42)) {} }", - ifStmt(hasConditionVariableStatement(declStmt())))); -} - -TEST(HasConditionVariableStatement, MatchesConditionVariables) { - EXPECT_TRUE(matches( - "void x() { if(int* a = 0) {} }", - ifStmt(hasConditionVariableStatement(declStmt())))); -} - -TEST(ForEach, BindsOneNode) { - EXPECT_TRUE(matchAndVerifyResultTrue("class C { int x; };", - recordDecl(hasName("C"), forEach(fieldDecl(hasName("x")).bind("x"))), - llvm::make_unique>("x", 1))); -} - -TEST(ForEach, BindsMultipleNodes) { - EXPECT_TRUE(matchAndVerifyResultTrue("class C { int x; int y; int z; };", - recordDecl(hasName("C"), forEach(fieldDecl().bind("f"))), - llvm::make_unique>("f", 3))); -} - -TEST(ForEach, BindsRecursiveCombinations) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class C { class D { int x; int y; }; class E { int y; int z; }; };", - recordDecl(hasName("C"), - forEach(recordDecl(forEach(fieldDecl().bind("f"))))), - llvm::make_unique>("f", 4))); -} - -TEST(ForEachDescendant, BindsOneNode) { - EXPECT_TRUE(matchAndVerifyResultTrue("class C { class D { int x; }; };", - recordDecl(hasName("C"), - forEachDescendant(fieldDecl(hasName("x")).bind("x"))), - llvm::make_unique>("x", 1))); -} - -TEST(ForEachDescendant, NestedForEachDescendant) { - DeclarationMatcher m = recordDecl( - isDefinition(), decl().bind("x"), hasName("C")); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A { class B { class C {}; }; };", - recordDecl(hasName("A"), anyOf(m, forEachDescendant(m))), - llvm::make_unique>("x", "C"))); - - // Check that a partial match of 'm' that binds 'x' in the - // first part of anyOf(m, anything()) will not overwrite the - // binding created by the earlier binding in the hasDescendant. - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A { class B { class C {}; }; };", - recordDecl(hasName("A"), allOf(hasDescendant(m), anyOf(m, anything()))), - llvm::make_unique>("x", "C"))); -} - -TEST(ForEachDescendant, BindsMultipleNodes) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class C { class D { int x; int y; }; " - " class E { class F { int y; int z; }; }; };", - recordDecl(hasName("C"), forEachDescendant(fieldDecl().bind("f"))), - llvm::make_unique>("f", 4))); -} - -TEST(ForEachDescendant, BindsRecursiveCombinations) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class C { class D { " - " class E { class F { class G { int y; int z; }; }; }; }; };", - recordDecl(hasName("C"), forEachDescendant(recordDecl( - forEachDescendant(fieldDecl().bind("f"))))), - llvm::make_unique>("f", 8))); -} - -TEST(ForEachDescendant, BindsCombinations) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "void f() { if(true) {} if (true) {} while (true) {} if (true) {} while " - "(true) {} }", - compoundStmt(forEachDescendant(ifStmt().bind("if")), - forEachDescendant(whileStmt().bind("while"))), - llvm::make_unique>("if", 6))); -} - -TEST(Has, DoesNotDeleteBindings) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class X { int a; };", recordDecl(decl().bind("x"), has(fieldDecl())), - llvm::make_unique>("x", 1))); -} - -TEST(LoopingMatchers, DoNotOverwritePreviousMatchResultOnFailure) { - // Those matchers cover all the cases where an inner matcher is called - // and there is not a 1:1 relationship between the match of the outer - // matcher and the match of the inner matcher. - // The pattern to look for is: - // ... return InnerMatcher.matches(...); ... - // In which case no special handling is needed. - // - // On the other hand, if there are multiple alternative matches - // (for example forEach*) or matches might be discarded (for example has*) - // the implementation must make sure that the discarded matches do not - // affect the bindings. - // When new such matchers are added, add a test here that: - // - matches a simple node, and binds it as the first thing in the matcher: - // recordDecl(decl().bind("x"), hasName("X"))) - // - uses the matcher under test afterwards in a way that not the first - // alternative is matched; for anyOf, that means the first branch - // would need to return false; for hasAncestor, it means that not - // the direct parent matches the inner matcher. - - EXPECT_TRUE(matchAndVerifyResultTrue( - "class X { int y; };", - recordDecl( - recordDecl().bind("x"), hasName("::X"), - anyOf(forEachDescendant(recordDecl(hasName("Y"))), anything())), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class X {};", recordDecl(recordDecl().bind("x"), hasName("::X"), - anyOf(unless(anything()), anything())), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "template class X {}; X x;", - classTemplateSpecializationDecl( - decl().bind("x"), - hasAnyTemplateArgument(refersToType(asString("int")))), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class X { void f(); void g(); };", - cxxRecordDecl(decl().bind("x"), hasMethod(hasName("g"))), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class X { X() : a(1), b(2) {} double a; int b; };", - recordDecl(decl().bind("x"), - has(cxxConstructorDecl( - hasAnyConstructorInitializer(forField(hasName("b")))))), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "void x(int, int) { x(0, 42); }", - callExpr(expr().bind("x"), hasAnyArgument(integerLiteral(equals(42)))), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "void x(int, int y) {}", - functionDecl(decl().bind("x"), hasAnyParameter(hasName("y"))), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "void x() { return; if (true) {} }", - functionDecl(decl().bind("x"), - has(compoundStmt(hasAnySubstatement(ifStmt())))), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "namespace X { void b(int); void b(); }" - "using X::b;", - usingDecl(decl().bind("x"), hasAnyUsingShadowDecl(hasTargetDecl( - functionDecl(parameterCountIs(1))))), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A{}; class B{}; class C : B, A {};", - cxxRecordDecl(decl().bind("x"), isDerivedFrom("::A")), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A{}; typedef A B; typedef A C; typedef A D;" - "class E : A {};", - cxxRecordDecl(decl().bind("x"), isDerivedFrom("C")), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A { class B { void f() {} }; };", - functionDecl(decl().bind("x"), hasAncestor(recordDecl(hasName("::A")))), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "template struct A { struct B {" - " void f() { if(true) {} }" - "}; };" - "void t() { A::B b; b.f(); }", - ifStmt(stmt().bind("x"), hasAncestor(recordDecl(hasName("::A")))), - llvm::make_unique>("x", 2))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A {};", - recordDecl(hasName("::A"), decl().bind("x"), unless(hasName("fooble"))), - llvm::make_unique>("x", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A { A() : s(), i(42) {} const char *s; int i; };", - cxxConstructorDecl(hasName("::A::A"), decl().bind("x"), - forEachConstructorInitializer(forField(hasName("i")))), - llvm::make_unique>("x", 1))); -} - -TEST(ForEachDescendant, BindsCorrectNodes) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class C { void f(); int i; };", - recordDecl(hasName("C"), forEachDescendant(decl().bind("decl"))), - llvm::make_unique>("decl", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class C { void f() {} int i; };", - recordDecl(hasName("C"), forEachDescendant(decl().bind("decl"))), - llvm::make_unique>("decl", 1))); -} - -TEST(FindAll, BindsNodeOnMatch) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A {};", - recordDecl(hasName("::A"), findAll(recordDecl(hasName("::A")).bind("v"))), - llvm::make_unique>("v", 1))); -} - -TEST(FindAll, BindsDescendantNodeOnMatch) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A { int a; int b; };", - recordDecl(hasName("::A"), findAll(fieldDecl().bind("v"))), - llvm::make_unique>("v", 2))); -} - -TEST(FindAll, BindsNodeAndDescendantNodesOnOneMatch) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A { int a; int b; };", - recordDecl(hasName("::A"), - findAll(decl(anyOf(recordDecl(hasName("::A")).bind("v"), - fieldDecl().bind("v"))))), - llvm::make_unique>("v", 3))); - - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A { class B {}; class C {}; };", - recordDecl(hasName("::A"), findAll(recordDecl(isDefinition()).bind("v"))), - llvm::make_unique>("v", 3))); -} - -TEST(EachOf, TriggersForEachMatch) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A { int a; int b; };", - recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")), - has(fieldDecl(hasName("b")).bind("v")))), - llvm::make_unique>("v", 2))); -} - -TEST(EachOf, BehavesLikeAnyOfUnlessBothMatch) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A { int a; int c; };", - recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")), - has(fieldDecl(hasName("b")).bind("v")))), - llvm::make_unique>("v", 1))); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class A { int c; int b; };", - recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")), - has(fieldDecl(hasName("b")).bind("v")))), - llvm::make_unique>("v", 1))); - EXPECT_TRUE(notMatches( - "class A { int c; int d; };", - recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")), - has(fieldDecl(hasName("b")).bind("v")))))); -} - -TEST(IsTemplateInstantiation, MatchesImplicitClassTemplateInstantiation) { - // Make sure that we can both match the class by name (::X) and by the type - // the template was instantiated with (via a field). - - EXPECT_TRUE(matches( - "template class X {}; class A {}; X x;", - cxxRecordDecl(hasName("::X"), isTemplateInstantiation()))); - - EXPECT_TRUE(matches( - "template class X { T t; }; class A {}; X x;", - cxxRecordDecl(isTemplateInstantiation(), hasDescendant( - fieldDecl(hasType(recordDecl(hasName("A")))))))); -} - -TEST(IsTemplateInstantiation, MatchesImplicitFunctionTemplateInstantiation) { - EXPECT_TRUE(matches( - "template void f(T t) {} class A {}; void g() { f(A()); }", - functionDecl(hasParameter(0, hasType(recordDecl(hasName("A")))), - isTemplateInstantiation()))); -} - -TEST(IsTemplateInstantiation, MatchesExplicitClassTemplateInstantiation) { - EXPECT_TRUE(matches( - "template class X { T t; }; class A {};" - "template class X;", - cxxRecordDecl(isTemplateInstantiation(), hasDescendant( - fieldDecl(hasType(recordDecl(hasName("A")))))))); -} - -TEST(IsTemplateInstantiation, - MatchesInstantiationOfPartiallySpecializedClassTemplate) { - EXPECT_TRUE(matches( - "template class X {};" - "template class X {}; class A {}; X x;", - cxxRecordDecl(hasName("::X"), isTemplateInstantiation()))); -} - -TEST(IsTemplateInstantiation, - MatchesInstantiationOfClassTemplateNestedInNonTemplate) { - EXPECT_TRUE(matches( - "class A {};" - "class X {" - " template class Y { U u; };" - " Y y;" - "};", - cxxRecordDecl(hasName("::X::Y"), isTemplateInstantiation()))); -} - -TEST(IsTemplateInstantiation, DoesNotMatchInstantiationsInsideOfInstantiation) { - // FIXME: Figure out whether this makes sense. It doesn't affect the - // normal use case as long as the uppermost instantiation always is marked - // as template instantiation, but it might be confusing as a predicate. - EXPECT_TRUE(matches( - "class A {};" - "template class X {" - " template class Y { U u; };" - " Y y;" - "}; X x;", - cxxRecordDecl(hasName("::X::Y"), unless(isTemplateInstantiation())))); -} - -TEST(IsTemplateInstantiation, DoesNotMatchExplicitClassTemplateSpecialization) { - EXPECT_TRUE(notMatches( - "template class X {}; class A {};" - "template <> class X {}; X x;", - cxxRecordDecl(hasName("::X"), isTemplateInstantiation()))); -} - -TEST(IsTemplateInstantiation, DoesNotMatchNonTemplate) { - EXPECT_TRUE(notMatches( - "class A {}; class Y { A a; };", - cxxRecordDecl(isTemplateInstantiation()))); -} - -TEST(IsInstantiated, MatchesInstantiation) { - EXPECT_TRUE( - matches("template class A { T i; }; class Y { A a; };", - cxxRecordDecl(isInstantiated()))); -} - -TEST(IsInstantiated, NotMatchesDefinition) { - EXPECT_TRUE(notMatches("template class A { T i; };", - cxxRecordDecl(isInstantiated()))); -} - -TEST(IsInTemplateInstantiation, MatchesInstantiationStmt) { - EXPECT_TRUE(matches("template struct A { A() { T i; } };" - "class Y { A a; }; Y y;", - declStmt(isInTemplateInstantiation()))); -} - -TEST(IsInTemplateInstantiation, NotMatchesDefinitionStmt) { - EXPECT_TRUE(notMatches("template struct A { void x() { T i; } };", - declStmt(isInTemplateInstantiation()))); -} - -TEST(IsInstantiated, MatchesFunctionInstantiation) { - EXPECT_TRUE( - matches("template void A(T t) { T i; } void x() { A(0); }", - functionDecl(isInstantiated()))); -} - -TEST(IsInstantiated, NotMatchesFunctionDefinition) { - EXPECT_TRUE(notMatches("template void A(T t) { T i; }", - varDecl(isInstantiated()))); -} - -TEST(IsInTemplateInstantiation, MatchesFunctionInstantiationStmt) { - EXPECT_TRUE( - matches("template void A(T t) { T i; } void x() { A(0); }", - declStmt(isInTemplateInstantiation()))); -} - -TEST(IsInTemplateInstantiation, NotMatchesFunctionDefinitionStmt) { - EXPECT_TRUE(notMatches("template void A(T t) { T i; }", - declStmt(isInTemplateInstantiation()))); -} - -TEST(IsInTemplateInstantiation, Sharing) { - auto Matcher = binaryOperator(unless(isInTemplateInstantiation())); - // FIXME: Node sharing is an implementation detail, exposing it is ugly - // and makes the matcher behave in non-obvious ways. - EXPECT_TRUE(notMatches( - "int j; template void A(T t) { j += 42; } void x() { A(0); }", - Matcher)); - EXPECT_TRUE(matches( - "int j; template void A(T t) { j += t; } void x() { A(0); }", - Matcher)); -} - -TEST(IsExplicitTemplateSpecialization, - DoesNotMatchPrimaryTemplate) { - EXPECT_TRUE(notMatches( - "template class X {};", - cxxRecordDecl(isExplicitTemplateSpecialization()))); - EXPECT_TRUE(notMatches( - "template void f(T t);", - functionDecl(isExplicitTemplateSpecialization()))); -} - -TEST(IsExplicitTemplateSpecialization, - DoesNotMatchExplicitTemplateInstantiations) { - EXPECT_TRUE(notMatches( - "template class X {};" - "template class X; extern template class X;", - cxxRecordDecl(isExplicitTemplateSpecialization()))); - EXPECT_TRUE(notMatches( - "template void f(T t) {}" - "template void f(int t); extern template void f(long t);", - functionDecl(isExplicitTemplateSpecialization()))); -} - -TEST(IsExplicitTemplateSpecialization, - DoesNotMatchImplicitTemplateInstantiations) { - EXPECT_TRUE(notMatches( - "template class X {}; X x;", - cxxRecordDecl(isExplicitTemplateSpecialization()))); - EXPECT_TRUE(notMatches( - "template void f(T t); void g() { f(10); }", - functionDecl(isExplicitTemplateSpecialization()))); -} - -TEST(IsExplicitTemplateSpecialization, - MatchesExplicitTemplateSpecializations) { - EXPECT_TRUE(matches( - "template class X {};" - "template<> class X {};", - cxxRecordDecl(isExplicitTemplateSpecialization()))); - EXPECT_TRUE(matches( - "template void f(T t) {}" - "template<> void f(int t) {}", - functionDecl(isExplicitTemplateSpecialization()))); -} - -TEST(HasAncenstor, MatchesDeclarationAncestors) { - EXPECT_TRUE(matches( - "class A { class B { class C {}; }; };", - recordDecl(hasName("C"), hasAncestor(recordDecl(hasName("A")))))); -} - -TEST(HasAncenstor, FailsIfNoAncestorMatches) { - EXPECT_TRUE(notMatches( - "class A { class B { class C {}; }; };", - recordDecl(hasName("C"), hasAncestor(recordDecl(hasName("X")))))); -} - -TEST(HasAncestor, MatchesDeclarationsThatGetVisitedLater) { - EXPECT_TRUE(matches( - "class A { class B { void f() { C c; } class C {}; }; };", - varDecl(hasName("c"), hasType(recordDecl(hasName("C"), - hasAncestor(recordDecl(hasName("A")))))))); -} - -TEST(HasAncenstor, MatchesStatementAncestors) { - EXPECT_TRUE(matches( - "void f() { if (true) { while (false) { 42; } } }", - integerLiteral(equals(42), hasAncestor(ifStmt())))); -} - -TEST(HasAncestor, DrillsThroughDifferentHierarchies) { - EXPECT_TRUE(matches( - "void f() { if (true) { int x = 42; } }", - integerLiteral(equals(42), hasAncestor(functionDecl(hasName("f")))))); -} - -TEST(HasAncestor, BindsRecursiveCombinations) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class C { class D { class E { class F { int y; }; }; }; };", - fieldDecl(hasAncestor(recordDecl(hasAncestor(recordDecl().bind("r"))))), - llvm::make_unique>("r", 1))); -} - -TEST(HasAncestor, BindsCombinationsWithHasDescendant) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class C { class D { class E { class F { int y; }; }; }; };", - fieldDecl(hasAncestor( - decl( - hasDescendant(recordDecl(isDefinition(), - hasAncestor(recordDecl()))) - ).bind("d") - )), - llvm::make_unique>("d", "E"))); -} - -TEST(HasAncestor, MatchesClosestAncestor) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "template struct C {" - " void f(int) {" - " struct I { void g(T) { int x; } } i; i.g(42);" - " }" - "};" - "template struct C;", - varDecl(hasName("x"), - hasAncestor(functionDecl(hasParameter( - 0, varDecl(hasType(asString("int"))))).bind("f"))).bind("v"), - llvm::make_unique>("f", "g", 2))); -} - -TEST(HasAncestor, MatchesInTemplateInstantiations) { - EXPECT_TRUE(matches( - "template struct A { struct B { struct C { T t; }; }; }; " - "A::B::C a;", - fieldDecl(hasType(asString("int")), - hasAncestor(recordDecl(hasName("A")))))); -} - -TEST(HasAncestor, MatchesInImplicitCode) { - EXPECT_TRUE(matches( - "struct X {}; struct A { A() {} X x; };", - cxxConstructorDecl( - hasAnyConstructorInitializer(withInitializer(expr( - hasAncestor(recordDecl(hasName("A"))))))))); -} - -TEST(HasParent, MatchesOnlyParent) { - EXPECT_TRUE(matches( - "void f() { if (true) { int x = 42; } }", - compoundStmt(hasParent(ifStmt())))); - EXPECT_TRUE(notMatches( - "void f() { for (;;) { int x = 42; } }", - compoundStmt(hasParent(ifStmt())))); - EXPECT_TRUE(notMatches( - "void f() { if (true) for (;;) { int x = 42; } }", - compoundStmt(hasParent(ifStmt())))); -} - -TEST(HasAncestor, MatchesAllAncestors) { - EXPECT_TRUE(matches( - "template struct C { static void f() { 42; } };" - "void t() { C::f(); }", - integerLiteral( - equals(42), - allOf( - hasAncestor(cxxRecordDecl(isTemplateInstantiation())), - hasAncestor(cxxRecordDecl(unless(isTemplateInstantiation()))))))); -} - -TEST(HasAncestor, ImplicitArrayCopyCtorDeclRefExpr) { - EXPECT_TRUE(matches("struct MyClass {\n" - " int c[1];\n" - " static MyClass Create() { return MyClass(); }\n" - "};", - declRefExpr(to(decl(hasAncestor(decl())))))); -} - -TEST(HasAncestor, AnonymousUnionMemberExpr) { - EXPECT_TRUE(matches("int F() {\n" - " union { int i; };\n" - " return i;\n" - "}\n", - memberExpr(member(hasAncestor(decl()))))); - EXPECT_TRUE(matches("void f() {\n" - " struct {\n" - " struct { int a; int b; };\n" - " } s;\n" - " s.a = 4;\n" - "}\n", - memberExpr(member(hasAncestor(decl()))))); - EXPECT_TRUE(matches("void f() {\n" - " struct {\n" - " struct { int a; int b; };\n" - " } s;\n" - " s.a = 4;\n" - "}\n", - declRefExpr(to(decl(hasAncestor(decl())))))); -} - -TEST(HasAncestor, NonParmDependentTemplateParmVarDeclRefExpr) { - EXPECT_TRUE(matches("struct PartitionAllocator {\n" - " template\n" - " static int quantizedSize(int count) {\n" - " return count;\n" - " }\n" - " void f() { quantizedSize(10); }\n" - "};", - declRefExpr(to(decl(hasAncestor(decl())))))); -} - -TEST(HasAncestor, AddressOfExplicitSpecializationFunction) { - EXPECT_TRUE(matches("template void f();\n" - "template <> void f();\n" - "void (*get_f())() { return f; }\n", - declRefExpr(to(decl(hasAncestor(decl())))))); -} - -TEST(HasParent, MatchesAllParents) { - EXPECT_TRUE(matches( - "template struct C { static void f() { 42; } };" - "void t() { C::f(); }", - integerLiteral( - equals(42), - hasParent(compoundStmt(hasParent(functionDecl( - hasParent(cxxRecordDecl(isTemplateInstantiation()))))))))); - EXPECT_TRUE( - matches("template struct C { static void f() { 42; } };" - "void t() { C::f(); }", - integerLiteral( - equals(42), - hasParent(compoundStmt(hasParent(functionDecl(hasParent( - cxxRecordDecl(unless(isTemplateInstantiation())))))))))); - EXPECT_TRUE(matches( - "template struct C { static void f() { 42; } };" - "void t() { C::f(); }", - integerLiteral(equals(42), - hasParent(compoundStmt( - allOf(hasParent(functionDecl(hasParent( - cxxRecordDecl(isTemplateInstantiation())))), - hasParent(functionDecl(hasParent(cxxRecordDecl( - unless(isTemplateInstantiation()))))))))))); - EXPECT_TRUE( - notMatches("template struct C { static void f() {} };" - "void t() { C::f(); }", - compoundStmt(hasParent(recordDecl())))); -} - -TEST(HasParent, NoDuplicateParents) { - class HasDuplicateParents : public BoundNodesCallback { - public: - bool run(const BoundNodes *Nodes) override { return false; } - bool run(const BoundNodes *Nodes, ASTContext *Context) override { - const Stmt *Node = Nodes->getNodeAs("node"); - std::set Parents; - for (const auto &Parent : Context->getParents(*Node)) { - if (!Parents.insert(Parent.getMemoizationData()).second) { - return true; - } - } - return false; - } - }; - EXPECT_FALSE(matchAndVerifyResultTrue( - "template int Foo() { return 1 + 2; }\n" - "int x = Foo() + Foo();", - stmt().bind("node"), llvm::make_unique())); -} - -TEST(TypeMatching, MatchesTypes) { - EXPECT_TRUE(matches("struct S {};", qualType().bind("loc"))); -} - -TEST(TypeMatching, MatchesBool) { - EXPECT_TRUE(matches("struct S { bool func(); };", - cxxMethodDecl(returns(booleanType())))); - EXPECT_TRUE(notMatches("struct S { void func(); };", - cxxMethodDecl(returns(booleanType())))); -} - -TEST(TypeMatching, MatchesVoid) { - EXPECT_TRUE(matches("struct S { void func(); };", - cxxMethodDecl(returns(voidType())))); -} - -TEST(TypeMatching, MatchesRealFloats) { - EXPECT_TRUE(matches("struct S { float func(); };", - cxxMethodDecl(returns(realFloatingPointType())))); - EXPECT_TRUE(notMatches("struct S { int func(); };", - cxxMethodDecl(returns(realFloatingPointType())))); - EXPECT_TRUE(matches("struct S { long double func(); };", - cxxMethodDecl(returns(realFloatingPointType())))); -} - -TEST(TypeMatching, MatchesArrayTypes) { - EXPECT_TRUE(matches("int a[] = {2,3};", arrayType())); - EXPECT_TRUE(matches("int a[42];", arrayType())); - EXPECT_TRUE(matches("void f(int b) { int a[b]; }", arrayType())); - - EXPECT_TRUE(notMatches("struct A {}; A a[7];", - arrayType(hasElementType(builtinType())))); - - EXPECT_TRUE(matches( - "int const a[] = { 2, 3 };", - qualType(arrayType(hasElementType(builtinType()))))); - EXPECT_TRUE(matches( - "int const a[] = { 2, 3 };", - qualType(isConstQualified(), arrayType(hasElementType(builtinType()))))); - EXPECT_TRUE(matches( - "typedef const int T; T x[] = { 1, 2 };", - qualType(isConstQualified(), arrayType()))); - - EXPECT_TRUE(notMatches( - "int a[] = { 2, 3 };", - qualType(isConstQualified(), arrayType(hasElementType(builtinType()))))); - EXPECT_TRUE(notMatches( - "int a[] = { 2, 3 };", - qualType(arrayType(hasElementType(isConstQualified(), builtinType()))))); - EXPECT_TRUE(notMatches( - "int const a[] = { 2, 3 };", - qualType(arrayType(hasElementType(builtinType())), - unless(isConstQualified())))); - - EXPECT_TRUE(matches("int a[2];", - constantArrayType(hasElementType(builtinType())))); - EXPECT_TRUE(matches("const int a = 0;", qualType(isInteger()))); -} - -TEST(TypeMatching, DecayedType) { - EXPECT_TRUE(matches("void f(int i[]);", valueDecl(hasType(decayedType(hasDecayedType(pointerType())))))); - EXPECT_TRUE(notMatches("int i[7];", decayedType())); -} - -TEST(TypeMatching, MatchesComplexTypes) { - EXPECT_TRUE(matches("_Complex float f;", complexType())); - EXPECT_TRUE(matches( - "_Complex float f;", - complexType(hasElementType(builtinType())))); - EXPECT_TRUE(notMatches( - "_Complex float f;", - complexType(hasElementType(isInteger())))); -} - -TEST(TypeMatching, MatchesConstantArrayTypes) { - EXPECT_TRUE(matches("int a[2];", constantArrayType())); - EXPECT_TRUE(notMatches( - "void f() { int a[] = { 2, 3 }; int b[a[0]]; }", - constantArrayType(hasElementType(builtinType())))); - - EXPECT_TRUE(matches("int a[42];", constantArrayType(hasSize(42)))); - EXPECT_TRUE(matches("int b[2*21];", constantArrayType(hasSize(42)))); - EXPECT_TRUE(notMatches("int c[41], d[43];", constantArrayType(hasSize(42)))); -} - -TEST(TypeMatching, MatchesDependentSizedArrayTypes) { - EXPECT_TRUE(matches( - "template class array { T data[Size]; };", - dependentSizedArrayType())); - EXPECT_TRUE(notMatches( - "int a[42]; int b[] = { 2, 3 }; void f() { int c[b[0]]; }", - dependentSizedArrayType())); -} - -TEST(TypeMatching, MatchesIncompleteArrayType) { - EXPECT_TRUE(matches("int a[] = { 2, 3 };", incompleteArrayType())); - EXPECT_TRUE(matches("void f(int a[]) {}", incompleteArrayType())); - - EXPECT_TRUE(notMatches("int a[42]; void f() { int b[a[0]]; }", - incompleteArrayType())); -} - -TEST(TypeMatching, MatchesVariableArrayType) { - EXPECT_TRUE(matches("void f(int b) { int a[b]; }", variableArrayType())); - EXPECT_TRUE(notMatches("int a[] = {2, 3}; int b[42];", variableArrayType())); - - EXPECT_TRUE(matches( - "void f(int b) { int a[b]; }", - variableArrayType(hasSizeExpr(ignoringImpCasts(declRefExpr(to( - varDecl(hasName("b"))))))))); -} - -TEST(TypeMatching, MatchesAtomicTypes) { - if (llvm::Triple(llvm::sys::getDefaultTargetTriple()).getOS() != - llvm::Triple::Win32) { - // FIXME: Make this work for MSVC. - EXPECT_TRUE(matches("_Atomic(int) i;", atomicType())); - - EXPECT_TRUE(matches("_Atomic(int) i;", - atomicType(hasValueType(isInteger())))); - EXPECT_TRUE(notMatches("_Atomic(float) f;", - atomicType(hasValueType(isInteger())))); - } -} - -TEST(TypeMatching, MatchesAutoTypes) { - EXPECT_TRUE(matches("auto i = 2;", autoType())); - EXPECT_TRUE(matches("int v[] = { 2, 3 }; void f() { for (int i : v) {} }", - autoType())); - - // FIXME: Matching against the type-as-written can't work here, because the - // type as written was not deduced. - //EXPECT_TRUE(matches("auto a = 1;", - // autoType(hasDeducedType(isInteger())))); - //EXPECT_TRUE(notMatches("auto b = 2.0;", - // autoType(hasDeducedType(isInteger())))); -} - -TEST(TypeMatching, MatchesFunctionTypes) { - EXPECT_TRUE(matches("int (*f)(int);", functionType())); - EXPECT_TRUE(matches("void f(int i) {}", functionType())); -} - -TEST(TypeMatching, MatchesFunctionProtoTypes) { - EXPECT_TRUE(matches("int (*f)(int);", functionProtoType())); - EXPECT_TRUE(matches("void f(int i);", functionProtoType())); - EXPECT_TRUE(matches("void f();", functionProtoType(parameterCountIs(0)))); - EXPECT_TRUE(notMatchesC("void f();", functionProtoType())); - EXPECT_TRUE( - matchesC("void f(void);", functionProtoType(parameterCountIs(0)))); -} - -TEST(TypeMatching, MatchesParenType) { - EXPECT_TRUE( - matches("int (*array)[4];", varDecl(hasType(pointsTo(parenType()))))); - EXPECT_TRUE(notMatches("int *array[4];", varDecl(hasType(parenType())))); - - EXPECT_TRUE(matches( - "int (*ptr_to_func)(int);", - varDecl(hasType(pointsTo(parenType(innerType(functionType()))))))); - EXPECT_TRUE(notMatches( - "int (*ptr_to_array)[4];", - varDecl(hasType(pointsTo(parenType(innerType(functionType()))))))); -} - -TEST(TypeMatching, PointerTypes) { - // FIXME: Reactive when these tests can be more specific (not matching - // implicit code on certain platforms), likely when we have hasDescendant for - // Types/TypeLocs. - //EXPECT_TRUE(matchAndVerifyResultTrue( - // "int* a;", - // pointerTypeLoc(pointeeLoc(typeLoc().bind("loc"))), - // llvm::make_unique>("loc", 1))); - //EXPECT_TRUE(matchAndVerifyResultTrue( - // "int* a;", - // pointerTypeLoc().bind("loc"), - // llvm::make_unique>("loc", 1))); - EXPECT_TRUE(matches( - "int** a;", - loc(pointerType(pointee(qualType()))))); - EXPECT_TRUE(matches( - "int** a;", - loc(pointerType(pointee(pointerType()))))); - EXPECT_TRUE(matches( - "int* b; int* * const a = &b;", - loc(qualType(isConstQualified(), pointerType())))); - - std::string Fragment = "struct A { int i; }; int A::* ptr = &A::i;"; - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), - hasType(blockPointerType())))); - EXPECT_TRUE(matches(Fragment, varDecl(hasName("ptr"), - hasType(memberPointerType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), - hasType(pointerType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), - hasType(referenceType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), - hasType(lValueReferenceType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), - hasType(rValueReferenceType())))); - - Fragment = "int *ptr;"; - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), - hasType(blockPointerType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), - hasType(memberPointerType())))); - EXPECT_TRUE(matches(Fragment, varDecl(hasName("ptr"), - hasType(pointerType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), - hasType(referenceType())))); - - Fragment = "int a; int &ref = a;"; - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), - hasType(blockPointerType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), - hasType(memberPointerType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), - hasType(pointerType())))); - EXPECT_TRUE(matches(Fragment, varDecl(hasName("ref"), - hasType(referenceType())))); - EXPECT_TRUE(matches(Fragment, varDecl(hasName("ref"), - hasType(lValueReferenceType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), - hasType(rValueReferenceType())))); - - Fragment = "int &&ref = 2;"; - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), - hasType(blockPointerType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), - hasType(memberPointerType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), - hasType(pointerType())))); - EXPECT_TRUE(matches(Fragment, varDecl(hasName("ref"), - hasType(referenceType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), - hasType(lValueReferenceType())))); - EXPECT_TRUE(matches(Fragment, varDecl(hasName("ref"), - hasType(rValueReferenceType())))); -} - -TEST(TypeMatching, AutoRefTypes) { - std::string Fragment = "auto a = 1;" - "auto b = a;" - "auto &c = a;" - "auto &&d = c;" - "auto &&e = 2;"; - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("a"), - hasType(referenceType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("b"), - hasType(referenceType())))); - EXPECT_TRUE(matches(Fragment, varDecl(hasName("c"), - hasType(referenceType())))); - EXPECT_TRUE(matches(Fragment, varDecl(hasName("c"), - hasType(lValueReferenceType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("c"), - hasType(rValueReferenceType())))); - EXPECT_TRUE(matches(Fragment, varDecl(hasName("d"), - hasType(referenceType())))); - EXPECT_TRUE(matches(Fragment, varDecl(hasName("d"), - hasType(lValueReferenceType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("d"), - hasType(rValueReferenceType())))); - EXPECT_TRUE(matches(Fragment, varDecl(hasName("e"), - hasType(referenceType())))); - EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("e"), - hasType(lValueReferenceType())))); - EXPECT_TRUE(matches(Fragment, varDecl(hasName("e"), - hasType(rValueReferenceType())))); -} - -TEST(TypeMatching, PointeeTypes) { - EXPECT_TRUE(matches("int b; int &a = b;", - referenceType(pointee(builtinType())))); - EXPECT_TRUE(matches("int *a;", pointerType(pointee(builtinType())))); - - EXPECT_TRUE(matches("int *a;", - loc(pointerType(pointee(builtinType()))))); - - EXPECT_TRUE(matches( - "int const *A;", - pointerType(pointee(isConstQualified(), builtinType())))); - EXPECT_TRUE(notMatches( - "int *A;", - pointerType(pointee(isConstQualified(), builtinType())))); -} - -TEST(TypeMatching, MatchesPointersToConstTypes) { - EXPECT_TRUE(matches("int b; int * const a = &b;", - loc(pointerType()))); - EXPECT_TRUE(matches("int b; int * const a = &b;", - loc(pointerType()))); - EXPECT_TRUE(matches( - "int b; const int * a = &b;", - loc(pointerType(pointee(builtinType()))))); - EXPECT_TRUE(matches( - "int b; const int * a = &b;", - pointerType(pointee(builtinType())))); -} - -TEST(TypeMatching, MatchesTypedefTypes) { - EXPECT_TRUE(matches("typedef int X; X a;", varDecl(hasName("a"), - hasType(typedefType())))); -} - -TEST(TypeMatching, MatchesTemplateSpecializationType) { - EXPECT_TRUE(matches("template class A{}; A a;", - templateSpecializationType())); -} - -TEST(TypeMatching, MatchesRecordType) { - EXPECT_TRUE(matches("class C{}; C c;", recordType())); - EXPECT_TRUE(matches("struct S{}; S s;", - recordType(hasDeclaration(recordDecl(hasName("S")))))); - EXPECT_TRUE(notMatches("int i;", - recordType(hasDeclaration(recordDecl(hasName("S")))))); -} - -TEST(TypeMatching, MatchesElaboratedType) { - EXPECT_TRUE(matches( - "namespace N {" - " namespace M {" - " class D {};" - " }" - "}" - "N::M::D d;", elaboratedType())); - EXPECT_TRUE(matches("class C {} c;", elaboratedType())); - EXPECT_TRUE(notMatches("class C {}; C c;", elaboratedType())); -} - -TEST(ElaboratedTypeNarrowing, hasQualifier) { - EXPECT_TRUE(matches( - "namespace N {" - " namespace M {" - " class D {};" - " }" - "}" - "N::M::D d;", - elaboratedType(hasQualifier(hasPrefix(specifiesNamespace(hasName("N"))))))); - EXPECT_TRUE(notMatches( - "namespace M {" - " class D {};" - "}" - "M::D d;", - elaboratedType(hasQualifier(hasPrefix(specifiesNamespace(hasName("N"))))))); - EXPECT_TRUE(notMatches( - "struct D {" - "} d;", - elaboratedType(hasQualifier(nestedNameSpecifier())))); -} - -TEST(ElaboratedTypeNarrowing, namesType) { - EXPECT_TRUE(matches( - "namespace N {" - " namespace M {" - " class D {};" - " }" - "}" - "N::M::D d;", - elaboratedType(elaboratedType(namesType(recordType( - hasDeclaration(namedDecl(hasName("D"))))))))); - EXPECT_TRUE(notMatches( - "namespace M {" - " class D {};" - "}" - "M::D d;", - elaboratedType(elaboratedType(namesType(typedefType()))))); -} - -TEST(TypeMatching, MatchesSubstTemplateTypeParmType) { - const std::string code = "template " - "int F() {" - " return 1 + T();" - "}" - "int i = F();"; - EXPECT_FALSE(matches(code, binaryOperator(hasLHS( - expr(hasType(substTemplateTypeParmType())))))); - EXPECT_TRUE(matches(code, binaryOperator(hasRHS( - expr(hasType(substTemplateTypeParmType())))))); -} - -TEST(NNS, MatchesNestedNameSpecifiers) { - EXPECT_TRUE(matches("namespace ns { struct A {}; } ns::A a;", - nestedNameSpecifier())); - EXPECT_TRUE(matches("template class A { typename T::B b; };", - nestedNameSpecifier())); - EXPECT_TRUE(matches("struct A { void f(); }; void A::f() {}", - nestedNameSpecifier())); - EXPECT_TRUE(matches("namespace a { namespace b {} } namespace ab = a::b;", - nestedNameSpecifier())); - - EXPECT_TRUE(matches( - "struct A { static void f() {} }; void g() { A::f(); }", - nestedNameSpecifier())); - EXPECT_TRUE(notMatches( - "struct A { static void f() {} }; void g(A* a) { a->f(); }", - nestedNameSpecifier())); -} - -TEST(NullStatement, SimpleCases) { - EXPECT_TRUE(matches("void f() {int i;;}", nullStmt())); - EXPECT_TRUE(notMatches("void f() {int i;}", nullStmt())); -} - -TEST(NS, Anonymous) { - EXPECT_TRUE(notMatches("namespace N {}", namespaceDecl(isAnonymous()))); - EXPECT_TRUE(matches("namespace {}", namespaceDecl(isAnonymous()))); -} - -TEST(NS, Alias) { - EXPECT_TRUE(matches("namespace test {} namespace alias = ::test;", - namespaceAliasDecl(hasName("alias")))); -} - -TEST(NNS, MatchesTypes) { - NestedNameSpecifierMatcher Matcher = nestedNameSpecifier( - specifiesType(hasDeclaration(recordDecl(hasName("A"))))); - EXPECT_TRUE(matches("struct A { struct B {}; }; A::B b;", Matcher)); - EXPECT_TRUE(matches("struct A { struct B { struct C {}; }; }; A::B::C c;", - Matcher)); - EXPECT_TRUE(notMatches("namespace A { struct B {}; } A::B b;", Matcher)); -} - -TEST(NNS, MatchesNamespaceDecls) { - NestedNameSpecifierMatcher Matcher = nestedNameSpecifier( - specifiesNamespace(hasName("ns"))); - EXPECT_TRUE(matches("namespace ns { struct A {}; } ns::A a;", Matcher)); - EXPECT_TRUE(notMatches("namespace xx { struct A {}; } xx::A a;", Matcher)); - EXPECT_TRUE(notMatches("struct ns { struct A {}; }; ns::A a;", Matcher)); -} - -TEST(NNS, BindsNestedNameSpecifiers) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "namespace ns { struct E { struct B {}; }; } ns::E::B b;", - nestedNameSpecifier(specifiesType(asString("struct ns::E"))).bind("nns"), - llvm::make_unique>( - "nns", "ns::struct E::"))); -} - -TEST(NNS, BindsNestedNameSpecifierLocs) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "namespace ns { struct B {}; } ns::B b;", - loc(nestedNameSpecifier()).bind("loc"), - llvm::make_unique>("loc", 1))); -} - -TEST(NNS, MatchesNestedNameSpecifierPrefixes) { - EXPECT_TRUE(matches( - "struct A { struct B { struct C {}; }; }; A::B::C c;", - nestedNameSpecifier(hasPrefix(specifiesType(asString("struct A")))))); - EXPECT_TRUE(matches( - "struct A { struct B { struct C {}; }; }; A::B::C c;", - nestedNameSpecifierLoc(hasPrefix( - specifiesTypeLoc(loc(qualType(asString("struct A")))))))); -} - -TEST(NNS, DescendantsOfNestedNameSpecifiers) { - std::string Fragment = - "namespace a { struct A { struct B { struct C {}; }; }; };" - "void f() { a::A::B::C c; }"; - EXPECT_TRUE(matches( - Fragment, - nestedNameSpecifier(specifiesType(asString("struct a::A::B")), - hasDescendant(nestedNameSpecifier( - specifiesNamespace(hasName("a"))))))); - EXPECT_TRUE(notMatches( - Fragment, - nestedNameSpecifier(specifiesType(asString("struct a::A::B")), - has(nestedNameSpecifier( - specifiesNamespace(hasName("a"))))))); - EXPECT_TRUE(matches( - Fragment, - nestedNameSpecifier(specifiesType(asString("struct a::A")), - has(nestedNameSpecifier( - specifiesNamespace(hasName("a"))))))); - - // Not really useful because a NestedNameSpecifier can af at most one child, - // but to complete the interface. - EXPECT_TRUE(matchAndVerifyResultTrue( - Fragment, - nestedNameSpecifier(specifiesType(asString("struct a::A::B")), - forEach(nestedNameSpecifier().bind("x"))), - llvm::make_unique>("x", 1))); -} - -TEST(NNS, NestedNameSpecifiersAsDescendants) { - std::string Fragment = - "namespace a { struct A { struct B { struct C {}; }; }; };" - "void f() { a::A::B::C c; }"; - EXPECT_TRUE(matches( - Fragment, - decl(hasDescendant(nestedNameSpecifier(specifiesType( - asString("struct a::A"))))))); - EXPECT_TRUE(matchAndVerifyResultTrue( - Fragment, - functionDecl(hasName("f"), - forEachDescendant(nestedNameSpecifier().bind("x"))), - // Nested names: a, a::A and a::A::B. - llvm::make_unique>("x", 3))); -} - -TEST(NNSLoc, DescendantsOfNestedNameSpecifierLocs) { - std::string Fragment = - "namespace a { struct A { struct B { struct C {}; }; }; };" - "void f() { a::A::B::C c; }"; - EXPECT_TRUE(matches( - Fragment, - nestedNameSpecifierLoc(loc(specifiesType(asString("struct a::A::B"))), - hasDescendant(loc(nestedNameSpecifier( - specifiesNamespace(hasName("a")))))))); - EXPECT_TRUE(notMatches( - Fragment, - nestedNameSpecifierLoc(loc(specifiesType(asString("struct a::A::B"))), - has(loc(nestedNameSpecifier( - specifiesNamespace(hasName("a")))))))); - EXPECT_TRUE(matches( - Fragment, - nestedNameSpecifierLoc(loc(specifiesType(asString("struct a::A"))), - has(loc(nestedNameSpecifier( - specifiesNamespace(hasName("a")))))))); - - EXPECT_TRUE(matchAndVerifyResultTrue( - Fragment, - nestedNameSpecifierLoc(loc(specifiesType(asString("struct a::A::B"))), - forEach(nestedNameSpecifierLoc().bind("x"))), - llvm::make_unique>("x", 1))); -} - -TEST(NNSLoc, NestedNameSpecifierLocsAsDescendants) { - std::string Fragment = - "namespace a { struct A { struct B { struct C {}; }; }; };" - "void f() { a::A::B::C c; }"; - EXPECT_TRUE(matches( - Fragment, - decl(hasDescendant(loc(nestedNameSpecifier(specifiesType( - asString("struct a::A")))))))); - EXPECT_TRUE(matchAndVerifyResultTrue( - Fragment, - functionDecl(hasName("f"), - forEachDescendant(nestedNameSpecifierLoc().bind("x"))), - // Nested names: a, a::A and a::A::B. - llvm::make_unique>("x", 3))); -} - -template class VerifyMatchOnNode : public BoundNodesCallback { -public: - VerifyMatchOnNode(StringRef Id, const internal::Matcher &InnerMatcher, - StringRef InnerId) - : Id(Id), InnerMatcher(InnerMatcher), InnerId(InnerId) { - } - - bool run(const BoundNodes *Nodes) override { return false; } - - bool run(const BoundNodes *Nodes, ASTContext *Context) override { - const T *Node = Nodes->getNodeAs(Id); - return selectFirst(InnerId, match(InnerMatcher, *Node, *Context)) != - nullptr; - } -private: - std::string Id; - internal::Matcher InnerMatcher; - std::string InnerId; -}; - -TEST(MatchFinder, CanMatchDeclarationsRecursively) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class X { class Y {}; };", recordDecl(hasName("::X")).bind("X"), - llvm::make_unique>( - "X", decl(hasDescendant(recordDecl(hasName("X::Y")).bind("Y"))), - "Y"))); - EXPECT_TRUE(matchAndVerifyResultFalse( - "class X { class Y {}; };", recordDecl(hasName("::X")).bind("X"), - llvm::make_unique>( - "X", decl(hasDescendant(recordDecl(hasName("X::Z")).bind("Z"))), - "Z"))); -} - -TEST(MatchFinder, CanMatchStatementsRecursively) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "void f() { if (1) { for (;;) { } } }", ifStmt().bind("if"), - llvm::make_unique>( - "if", stmt(hasDescendant(forStmt().bind("for"))), "for"))); - EXPECT_TRUE(matchAndVerifyResultFalse( - "void f() { if (1) { for (;;) { } } }", ifStmt().bind("if"), - llvm::make_unique>( - "if", stmt(hasDescendant(declStmt().bind("decl"))), "decl"))); -} - -TEST(MatchFinder, CanMatchSingleNodesRecursively) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class X { class Y {}; };", recordDecl(hasName("::X")).bind("X"), - llvm::make_unique>( - "X", recordDecl(has(recordDecl(hasName("X::Y")).bind("Y"))), "Y"))); - EXPECT_TRUE(matchAndVerifyResultFalse( - "class X { class Y {}; };", recordDecl(hasName("::X")).bind("X"), - llvm::make_unique>( - "X", recordDecl(has(recordDecl(hasName("X::Z")).bind("Z"))), "Z"))); -} - -template -class VerifyAncestorHasChildIsEqual : public BoundNodesCallback { -public: - bool run(const BoundNodes *Nodes) override { return false; } - - bool run(const BoundNodes *Nodes, ASTContext *Context) override { - const T *Node = Nodes->getNodeAs(""); - return verify(*Nodes, *Context, Node); - } - - bool verify(const BoundNodes &Nodes, ASTContext &Context, const Stmt *Node) { - // Use the original typed pointer to verify we can pass pointers to subtypes - // to equalsNode. - const T *TypedNode = cast(Node); - return selectFirst( - "", match(stmt(hasParent( - stmt(has(stmt(equalsNode(TypedNode)))).bind(""))), - *Node, Context)) != nullptr; - } - bool verify(const BoundNodes &Nodes, ASTContext &Context, const Decl *Node) { - // Use the original typed pointer to verify we can pass pointers to subtypes - // to equalsNode. - const T *TypedNode = cast(Node); - return selectFirst( - "", match(decl(hasParent( - decl(has(decl(equalsNode(TypedNode)))).bind(""))), - *Node, Context)) != nullptr; - } - bool verify(const BoundNodes &Nodes, ASTContext &Context, const Type *Node) { - // Use the original typed pointer to verify we can pass pointers to subtypes - // to equalsNode. - const T *TypedNode = cast(Node); - const auto *Dec = Nodes.getNodeAs("decl"); - return selectFirst( - "", match(fieldDecl(hasParent(decl(has(fieldDecl( - hasType(type(equalsNode(TypedNode)).bind(""))))))), - *Dec, Context)) != nullptr; - } -}; - -TEST(IsEqualTo, MatchesNodesByIdentity) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "class X { class Y {}; };", recordDecl(hasName("::X::Y")).bind(""), - llvm::make_unique>())); - EXPECT_TRUE(matchAndVerifyResultTrue( - "void f() { if (true) if(true) {} }", ifStmt().bind(""), - llvm::make_unique>())); - EXPECT_TRUE(matchAndVerifyResultTrue( - "class X { class Y {} y; };", - fieldDecl(hasName("y"), hasType(type().bind(""))).bind("decl"), - llvm::make_unique>())); -} - -TEST(MatchFinder, CheckProfiling) { - MatchFinder::MatchFinderOptions Options; - llvm::StringMap Records; - Options.CheckProfiling.emplace(Records); - MatchFinder Finder(std::move(Options)); - - struct NamedCallback : public MatchFinder::MatchCallback { - void run(const MatchFinder::MatchResult &Result) override {} - StringRef getID() const override { return "MyID"; } - } Callback; - Finder.addMatcher(decl(), &Callback); - std::unique_ptr Factory( - newFrontendActionFactory(&Finder)); - ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), "int x;")); - - EXPECT_EQ(1u, Records.size()); - EXPECT_EQ("MyID", Records.begin()->getKey()); -} - -class VerifyStartOfTranslationUnit : public MatchFinder::MatchCallback { -public: - VerifyStartOfTranslationUnit() : Called(false) {} - void run(const MatchFinder::MatchResult &Result) override { - EXPECT_TRUE(Called); - } - void onStartOfTranslationUnit() override { Called = true; } - bool Called; -}; - -TEST(MatchFinder, InterceptsStartOfTranslationUnit) { - MatchFinder Finder; - VerifyStartOfTranslationUnit VerifyCallback; - Finder.addMatcher(decl(), &VerifyCallback); - std::unique_ptr Factory( - newFrontendActionFactory(&Finder)); - ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), "int x;")); - EXPECT_TRUE(VerifyCallback.Called); - - VerifyCallback.Called = false; - std::unique_ptr AST(tooling::buildASTFromCode("int x;")); - ASSERT_TRUE(AST.get()); - Finder.matchAST(AST->getASTContext()); - EXPECT_TRUE(VerifyCallback.Called); -} - -class VerifyEndOfTranslationUnit : public MatchFinder::MatchCallback { -public: - VerifyEndOfTranslationUnit() : Called(false) {} - void run(const MatchFinder::MatchResult &Result) override { - EXPECT_FALSE(Called); - } - void onEndOfTranslationUnit() override { Called = true; } - bool Called; -}; - -TEST(MatchFinder, InterceptsEndOfTranslationUnit) { - MatchFinder Finder; - VerifyEndOfTranslationUnit VerifyCallback; - Finder.addMatcher(decl(), &VerifyCallback); - std::unique_ptr Factory( - newFrontendActionFactory(&Finder)); - ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), "int x;")); - EXPECT_TRUE(VerifyCallback.Called); - - VerifyCallback.Called = false; - std::unique_ptr AST(tooling::buildASTFromCode("int x;")); - ASSERT_TRUE(AST.get()); - Finder.matchAST(AST->getASTContext()); - EXPECT_TRUE(VerifyCallback.Called); -} - -TEST(Matcher, matchOverEntireASTContext) { - std::unique_ptr AST = - clang::tooling::buildASTFromCode("struct { int *foo; };"); - ASSERT_TRUE(AST.get()); - auto PT = selectFirst( - "x", match(pointerType().bind("x"), AST->getASTContext())); - EXPECT_NE(nullptr, PT); -} - -TEST(EqualsBoundNodeMatcher, QualType) { - EXPECT_TRUE(matches( - "int i = 1;", varDecl(hasType(qualType().bind("type")), - hasInitializer(ignoringParenImpCasts( - hasType(qualType(equalsBoundNode("type")))))))); - EXPECT_TRUE(notMatches("int i = 1.f;", - varDecl(hasType(qualType().bind("type")), - hasInitializer(ignoringParenImpCasts(hasType( - qualType(equalsBoundNode("type")))))))); -} - -TEST(EqualsBoundNodeMatcher, NonMatchingTypes) { - EXPECT_TRUE(notMatches( - "int i = 1;", varDecl(namedDecl(hasName("i")).bind("name"), - hasInitializer(ignoringParenImpCasts( - hasType(qualType(equalsBoundNode("type")))))))); -} - -TEST(EqualsBoundNodeMatcher, Stmt) { - EXPECT_TRUE( - matches("void f() { if(true) {} }", - stmt(allOf(ifStmt().bind("if"), - hasParent(stmt(has(stmt(equalsBoundNode("if"))))))))); - - EXPECT_TRUE(notMatches( - "void f() { if(true) { if (true) {} } }", - stmt(allOf(ifStmt().bind("if"), has(stmt(equalsBoundNode("if"))))))); -} - -TEST(EqualsBoundNodeMatcher, Decl) { - EXPECT_TRUE(matches( - "class X { class Y {}; };", - decl(allOf(recordDecl(hasName("::X::Y")).bind("record"), - hasParent(decl(has(decl(equalsBoundNode("record"))))))))); - - EXPECT_TRUE(notMatches("class X { class Y {}; };", - decl(allOf(recordDecl(hasName("::X")).bind("record"), - has(decl(equalsBoundNode("record"))))))); -} - -TEST(EqualsBoundNodeMatcher, Type) { - EXPECT_TRUE(matches( - "class X { int a; int b; };", - recordDecl( - has(fieldDecl(hasName("a"), hasType(type().bind("t")))), - has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t")))))))); - - EXPECT_TRUE(notMatches( - "class X { int a; double b; };", - recordDecl( - has(fieldDecl(hasName("a"), hasType(type().bind("t")))), - has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t")))))))); -} - -TEST(EqualsBoundNodeMatcher, UsingForEachDescendant) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "int f() {" - " if (1) {" - " int i = 9;" - " }" - " int j = 10;" - " {" - " float k = 9.0;" - " }" - " return 0;" - "}", - // Look for variable declarations within functions whose type is the same - // as the function return type. - functionDecl(returns(qualType().bind("type")), - forEachDescendant(varDecl(hasType( - qualType(equalsBoundNode("type")))).bind("decl"))), - // Only i and j should match, not k. - llvm::make_unique>("decl", 2))); -} - -TEST(EqualsBoundNodeMatcher, FiltersMatchedCombinations) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "void f() {" - " int x;" - " double d;" - " x = d + x - d + x;" - "}", - functionDecl( - hasName("f"), forEachDescendant(varDecl().bind("d")), - forEachDescendant(declRefExpr(to(decl(equalsBoundNode("d")))))), - llvm::make_unique>("d", 5))); -} - -TEST(EqualsBoundNodeMatcher, UnlessDescendantsOfAncestorsMatch) { - EXPECT_TRUE(matchAndVerifyResultTrue( - "struct StringRef { int size() const; const char* data() const; };" - "void f(StringRef v) {" - " v.data();" - "}", - cxxMemberCallExpr( - callee(cxxMethodDecl(hasName("data"))), - on(declRefExpr(to( - varDecl(hasType(recordDecl(hasName("StringRef")))).bind("var")))), - unless(hasAncestor(stmt(hasDescendant(cxxMemberCallExpr( - callee(cxxMethodDecl(anyOf(hasName("size"), hasName("length")))), - on(declRefExpr(to(varDecl(equalsBoundNode("var"))))))))))) - .bind("data"), - llvm::make_unique>("data", 1))); - - EXPECT_FALSE(matches( - "struct StringRef { int size() const; const char* data() const; };" - "void f(StringRef v) {" - " v.data();" - " v.size();" - "}", - cxxMemberCallExpr( - callee(cxxMethodDecl(hasName("data"))), - on(declRefExpr(to( - varDecl(hasType(recordDecl(hasName("StringRef")))).bind("var")))), - unless(hasAncestor(stmt(hasDescendant(cxxMemberCallExpr( - callee(cxxMethodDecl(anyOf(hasName("size"), hasName("length")))), - on(declRefExpr(to(varDecl(equalsBoundNode("var"))))))))))) - .bind("data"))); -} - -TEST(TypedefDeclMatcher, Match) { - EXPECT_TRUE(matches("typedef int typedefDeclTest;", - typedefDecl(hasName("typedefDeclTest")))); - EXPECT_TRUE(notMatches("using typedefDeclTest2 = int;", - typedefDecl(hasName("typedefDeclTest2")))); -} - -TEST(TypeAliasDeclMatcher, Match) { - EXPECT_TRUE(matches("using typeAliasTest2 = int;", - typeAliasDecl(hasName("typeAliasTest2")))); - EXPECT_TRUE(notMatches("typedef int typeAliasTest;", - typeAliasDecl(hasName("typeAliasTest")))); -} - -TEST(TypedefNameDeclMatcher, Match) { - EXPECT_TRUE(matches("typedef int typedefNameDeclTest1;", - typedefNameDecl(hasName("typedefNameDeclTest1")))); - EXPECT_TRUE(matches("using typedefNameDeclTest2 = int;", - typedefNameDecl(hasName("typedefNameDeclTest2")))); -} - -TEST(IsInlineMatcher, IsInline) { - EXPECT_TRUE(matches("void g(); inline void f();", - functionDecl(isInline(), hasName("f")))); - EXPECT_TRUE(matches("namespace n { inline namespace m {} }", - namespaceDecl(isInline(), hasName("m")))); -} - -// FIXME: Figure out how to specify paths so the following tests pass on -// Windows. -#ifndef LLVM_ON_WIN32 - -TEST(Matcher, IsExpansionInMainFileMatcher) { - EXPECT_TRUE(matches("class X {};", - recordDecl(hasName("X"), isExpansionInMainFile()))); - EXPECT_TRUE(notMatches("", recordDecl(isExpansionInMainFile()))); - FileContentMappings M; - M.push_back(std::make_pair("/other", "class X {};")); - EXPECT_TRUE(matchesConditionally("#include \n", - recordDecl(isExpansionInMainFile()), false, - "-isystem/", M)); -} - -TEST(Matcher, IsExpansionInSystemHeader) { - FileContentMappings M; - M.push_back(std::make_pair("/other", "class X {};")); - EXPECT_TRUE(matchesConditionally( - "#include \"other\"\n", recordDecl(isExpansionInSystemHeader()), true, - "-isystem/", M)); - EXPECT_TRUE(matchesConditionally("#include \"other\"\n", - recordDecl(isExpansionInSystemHeader()), - false, "-I/", M)); - EXPECT_TRUE(notMatches("class X {};", - recordDecl(isExpansionInSystemHeader()))); - EXPECT_TRUE(notMatches("", recordDecl(isExpansionInSystemHeader()))); -} - -TEST(Matcher, IsExpansionInFileMatching) { - FileContentMappings M; - M.push_back(std::make_pair("/foo", "class A {};")); - M.push_back(std::make_pair("/bar", "class B {};")); - EXPECT_TRUE(matchesConditionally( - "#include \n" - "#include \n" - "class X {};", - recordDecl(isExpansionInFileMatching("b.*"), hasName("B")), true, - "-isystem/", M)); - EXPECT_TRUE(matchesConditionally( - "#include \n" - "#include \n" - "class X {};", - recordDecl(isExpansionInFileMatching("f.*"), hasName("X")), false, - "-isystem/", M)); -} - -#endif // LLVM_ON_WIN32 - - -TEST(ObjCMessageExprMatcher, SimpleExprs) { - // don't find ObjCMessageExpr where none are present - EXPECT_TRUE(notMatchesObjC("", objcMessageExpr(anything()))); - - std::string Objc1String = - "@interface Str " - " - (Str *)uppercaseString:(Str *)str;" - "@end " - "@interface foo " - "- (void)meth:(Str *)text;" - "@end " - " " - "@implementation foo " - "- (void) meth:(Str *)text { " - " [self contents];" - " Str *up = [text uppercaseString];" - "} " - "@end "; - EXPECT_TRUE(matchesObjC( - Objc1String, - objcMessageExpr(anything()))); - EXPECT_TRUE(matchesObjC( - Objc1String, - objcMessageExpr(hasSelector("contents")))); - EXPECT_TRUE(matchesObjC( - Objc1String, - objcMessageExpr(matchesSelector("cont*")))); - EXPECT_FALSE(matchesObjC( - Objc1String, - objcMessageExpr(matchesSelector("?cont*")))); - EXPECT_TRUE(notMatchesObjC( - Objc1String, - objcMessageExpr(hasSelector("contents"), hasNullSelector()))); - EXPECT_TRUE(matchesObjC( - Objc1String, - objcMessageExpr(hasSelector("contents"), hasUnarySelector()))); - EXPECT_TRUE(matchesObjC( - Objc1String, - objcMessageExpr(hasSelector("contents"), numSelectorArgs(0)))); - EXPECT_TRUE(matchesObjC( - Objc1String, - objcMessageExpr(matchesSelector("uppercase*"), - argumentCountIs(0) - ))); -} - -TEST(NullPointerConstants, Basic) { - EXPECT_TRUE(matches("#define NULL ((void *)0)\n" - "void *v1 = NULL;", expr(nullPointerConstant()))); - EXPECT_TRUE(matches("void *v2 = nullptr;", expr(nullPointerConstant()))); - EXPECT_TRUE(matches("void *v3 = __null;", expr(nullPointerConstant()))); - EXPECT_TRUE(matches("char *cp = (char *)0;", expr(nullPointerConstant()))); - EXPECT_TRUE(matches("int *ip = 0;", expr(nullPointerConstant()))); - EXPECT_TRUE(notMatches("int i = 0;", expr(nullPointerConstant()))); -} - -TEST(StatementMatcher, HasReturnValue) { - StatementMatcher RetVal = returnStmt(hasReturnValue(binaryOperator())); - EXPECT_TRUE(matches("int F() { int a, b; return a + b; }", RetVal)); - EXPECT_FALSE(matches("int F() { int a; return a; }", RetVal)); - EXPECT_FALSE(matches("void F() { return; }", RetVal)); -} - -TEST(StatementMatcher, ForFunction) { - const auto CppString1 = - "struct PosVec {" - " PosVec& operator=(const PosVec&) {" - " auto x = [] { return 1; };" - " return *this;" - " }" - "};"; - const auto CppString2 = - "void F() {" - " struct S {" - " void F2() {" - " return;" - " }" - " };" - "}"; - EXPECT_TRUE( - matches( - CppString1, - returnStmt(forFunction(hasName("operator=")), - has(unaryOperator(hasOperatorName("*")))))); - EXPECT_TRUE( - notMatches( - CppString1, - returnStmt(forFunction(hasName("operator=")), - has(integerLiteral())))); - EXPECT_TRUE( - matches( - CppString1, - returnStmt(forFunction(hasName("operator()")), - has(integerLiteral())))); - EXPECT_TRUE(matches(CppString2, returnStmt(forFunction(hasName("F2"))))); - EXPECT_TRUE(notMatches(CppString2, returnStmt(forFunction(hasName("F"))))); -} - -} // end namespace ast_matchers -} // end namespace clang Index: unittests/ASTMatchers/ASTTraversalMatchersTest.cpp =================================================================== --- /dev/null +++ unittests/ASTMatchers/ASTTraversalMatchersTest.cpp @@ -0,0 +1,1981 @@ +//===- unittest/Tooling/ASTTravelsalMatchersTest.cpp - matchers unit tests ===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "ASTMatchersTest.h" +#include "clang/AST/PrettyPrinter.h" +#include "clang/ASTMatchers/ASTMatchFinder.h" +#include "clang/ASTMatchers/ASTMatchers.h" +#include "clang/Tooling/Tooling.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Support/Host.h" +#include "gtest/gtest.h" + +namespace clang { +namespace ast_matchers { + + + +TEST(DeclarationMatcher, hasMethod) { + EXPECT_TRUE(matches("class A { void func(); };", + cxxRecordDecl(hasMethod(hasName("func"))))); + EXPECT_TRUE(notMatches("class A { void func(); };", + cxxRecordDecl(hasMethod(isPublic())))); +} + +TEST(DeclarationMatcher, ClassDerivedFromDependentTemplateSpecialization) { + EXPECT_TRUE(matches( + "template struct A {" + " template struct F {};" + "};" + "template struct B : A::template F {};" + "B b;", + cxxRecordDecl(hasName("B"), isDerivedFrom(recordDecl())))); +} + +TEST(DeclarationMatcher, hasDeclContext) { + EXPECT_TRUE(matches( + "namespace N {" + " namespace M {" + " class D {};" + " }" + "}", + recordDecl(hasDeclContext(namespaceDecl(hasName("M")))))); + EXPECT_TRUE(notMatches( + "namespace N {" + " namespace M {" + " class D {};" + " }" + "}", + recordDecl(hasDeclContext(namespaceDecl(hasName("N")))))); + + EXPECT_TRUE(matches("namespace {" + " namespace M {" + " class D {};" + " }" + "}", + recordDecl(hasDeclContext(namespaceDecl( + hasName("M"), hasDeclContext(namespaceDecl())))))); + + EXPECT_TRUE(matches("class D{};", decl(hasDeclContext(decl())))); +} + +TEST(HasDescendant, MatchesDescendantTypes) { + EXPECT_TRUE(matches("void f() { int i = 3; }", + decl(hasDescendant(loc(builtinType()))))); + EXPECT_TRUE(matches("void f() { int i = 3; }", + stmt(hasDescendant(builtinType())))); + + EXPECT_TRUE(matches("void f() { int i = 3; }", + stmt(hasDescendant(loc(builtinType()))))); + EXPECT_TRUE(matches("void f() { int i = 3; }", + stmt(hasDescendant(qualType(builtinType()))))); + + EXPECT_TRUE(notMatches("void f() { float f = 2.0f; }", + stmt(hasDescendant(isInteger())))); + + EXPECT_TRUE(matchAndVerifyResultTrue( + "void f() { int a; float c; int d; int e; }", + functionDecl(forEachDescendant( + varDecl(hasDescendant(isInteger())).bind("x"))), + llvm::make_unique>("x", 3))); +} + +TEST(HasDescendant, MatchesDescendantsOfTypes) { + EXPECT_TRUE(matches("void f() { int*** i; }", + qualType(hasDescendant(builtinType())))); + EXPECT_TRUE(matches("void f() { int*** i; }", + qualType(hasDescendant( + pointerType(pointee(builtinType())))))); + EXPECT_TRUE(matches("void f() { int*** i; }", + typeLoc(hasDescendant(loc(builtinType()))))); + + EXPECT_TRUE(matchAndVerifyResultTrue( + "void f() { int*** i; }", + qualType(asString("int ***"), forEachDescendant(pointerType().bind("x"))), + llvm::make_unique>("x", 2))); +} + + +TEST(Has, MatchesChildrenOfTypes) { + EXPECT_TRUE(matches("int i;", + varDecl(hasName("i"), has(isInteger())))); + EXPECT_TRUE(notMatches("int** i;", + varDecl(hasName("i"), has(isInteger())))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "int (*f)(float, int);", + qualType(functionType(), forEach(qualType(isInteger()).bind("x"))), + llvm::make_unique>("x", 2))); +} + +TEST(Has, MatchesChildTypes) { + EXPECT_TRUE(matches( + "int* i;", + varDecl(hasName("i"), hasType(qualType(has(builtinType())))))); + EXPECT_TRUE(notMatches( + "int* i;", + varDecl(hasName("i"), hasType(qualType(has(pointerType())))))); +} + +TEST(StatementMatcher, Has) { + StatementMatcher HasVariableI = + expr(hasType(pointsTo(recordDecl(hasName("X")))), + has(declRefExpr(to(varDecl(hasName("i")))))); + + EXPECT_TRUE(matches( + "class X; X *x(int); void c() { int i; x(i); }", HasVariableI)); + EXPECT_TRUE(notMatches( + "class X; X *x(int); void c() { int i; x(42); }", HasVariableI)); +} + +TEST(StatementMatcher, HasDescendant) { + StatementMatcher HasDescendantVariableI = + expr(hasType(pointsTo(recordDecl(hasName("X")))), + hasDescendant(declRefExpr(to(varDecl(hasName("i")))))); + + EXPECT_TRUE(matches( + "class X; X *x(bool); bool b(int); void c() { int i; x(b(i)); }", + HasDescendantVariableI)); + EXPECT_TRUE(notMatches( + "class X; X *x(bool); bool b(int); void c() { int i; x(b(42)); }", + HasDescendantVariableI)); +} + +TEST(TypeMatcher, MatchesClassType) { + TypeMatcher TypeA = hasDeclaration(recordDecl(hasName("A"))); + + EXPECT_TRUE(matches("class A { public: A *a; };", TypeA)); + EXPECT_TRUE(notMatches("class A {};", TypeA)); + + TypeMatcher TypeDerivedFromA = + hasDeclaration(cxxRecordDecl(isDerivedFrom("A"))); + + EXPECT_TRUE(matches("class A {}; class B : public A { public: B *b; };", + TypeDerivedFromA)); + EXPECT_TRUE(notMatches("class A {};", TypeA)); + + TypeMatcher TypeAHasClassB = hasDeclaration( + recordDecl(hasName("A"), has(recordDecl(hasName("B"))))); + + EXPECT_TRUE( + matches("class A { public: A *a; class B {}; };", TypeAHasClassB)); + + EXPECT_TRUE(matchesC("struct S {}; void f(void) { struct S s; }", + varDecl(hasType(namedDecl(hasName("S")))))); +} + +TEST(TypeMatcher, MatchesDeclTypes) { + // TypedefType -> TypedefNameDecl + EXPECT_TRUE(matches("typedef int I; void f(I i);", + parmVarDecl(hasType(namedDecl(hasName("I")))))); + // ObjCObjectPointerType + EXPECT_TRUE(matchesObjC("@interface Foo @end void f(Foo *f);", + parmVarDecl(hasType(objcObjectPointerType())))); + // ObjCObjectPointerType -> ObjCInterfaceType -> ObjCInterfaceDecl + EXPECT_TRUE(matchesObjC( + "@interface Foo @end void f(Foo *f);", + parmVarDecl(hasType(pointsTo(objcInterfaceDecl(hasName("Foo"))))))); + // TemplateTypeParmType + EXPECT_TRUE(matches("template void f(T t);", + parmVarDecl(hasType(templateTypeParmType())))); + // TemplateTypeParmType -> TemplateTypeParmDecl + EXPECT_TRUE(matches("template void f(T t);", + parmVarDecl(hasType(namedDecl(hasName("T")))))); + // InjectedClassNameType + EXPECT_TRUE(matches("template struct S {" + " void f(S s);" + "};", + parmVarDecl(hasType(injectedClassNameType())))); + EXPECT_TRUE(notMatches("template struct S {" + " void g(S s);" + "};", + parmVarDecl(hasType(injectedClassNameType())))); + // InjectedClassNameType -> CXXRecordDecl + EXPECT_TRUE(matches("template struct S {" + " void f(S s);" + "};", + parmVarDecl(hasType(namedDecl(hasName("S")))))); + + static const char Using[] = "template " + "struct Base {" + " typedef T Foo;" + "};" + "" + "template " + "struct S : private Base {" + " using typename Base::Foo;" + " void f(Foo);" + "};"; + // UnresolvedUsingTypenameDecl + EXPECT_TRUE(matches(Using, unresolvedUsingTypenameDecl(hasName("Foo")))); + // UnresolvedUsingTypenameType -> UnresolvedUsingTypenameDecl + EXPECT_TRUE(matches(Using, parmVarDecl(hasType(namedDecl(hasName("Foo")))))); +} + +TEST(HasDeclaration, HasDeclarationOfEnumType) { + EXPECT_TRUE(matches("enum X {}; void y(X *x) { x; }", + expr(hasType(pointsTo( + qualType(hasDeclaration(enumDecl(hasName("X"))))))))); +} + +TEST(HasDeclaration, HasGetDeclTraitTest) { + EXPECT_TRUE(internal::has_getDecl::value); + EXPECT_TRUE(internal::has_getDecl::value); + EXPECT_FALSE(internal::has_getDecl::value); +} + +TEST(HasDeclaration, HasDeclarationOfTypeWithDecl) { + EXPECT_TRUE(matches("typedef int X; X a;", + varDecl(hasName("a"), + hasType(typedefType(hasDeclaration(decl())))))); + + // FIXME: Add tests for other types with getDecl() (e.g. RecordType) +} + +TEST(HasDeclaration, HasDeclarationOfTemplateSpecializationType) { + EXPECT_TRUE(matches("template class A {}; A a;", + varDecl(hasType(templateSpecializationType( + hasDeclaration(namedDecl(hasName("A")))))))); +} + +TEST(HasType, TakesQualTypeMatcherAndMatchesExpr) { + TypeMatcher ClassX = hasDeclaration(recordDecl(hasName("X"))); + EXPECT_TRUE( + matches("class X {}; void y(X &x) { x; }", expr(hasType(ClassX)))); + EXPECT_TRUE( + notMatches("class X {}; void y(X *x) { x; }", + expr(hasType(ClassX)))); + EXPECT_TRUE( + matches("class X {}; void y(X *x) { x; }", + expr(hasType(pointsTo(ClassX))))); +} + +TEST(HasType, TakesQualTypeMatcherAndMatchesValueDecl) { + TypeMatcher ClassX = hasDeclaration(recordDecl(hasName("X"))); + EXPECT_TRUE( + matches("class X {}; void y() { X x; }", varDecl(hasType(ClassX)))); + EXPECT_TRUE( + notMatches("class X {}; void y() { X *x; }", varDecl(hasType(ClassX)))); + EXPECT_TRUE( + matches("class X {}; void y() { X *x; }", + varDecl(hasType(pointsTo(ClassX))))); +} + +TEST(HasType, TakesDeclMatcherAndMatchesExpr) { + DeclarationMatcher ClassX = recordDecl(hasName("X")); + EXPECT_TRUE( + matches("class X {}; void y(X &x) { x; }", expr(hasType(ClassX)))); + EXPECT_TRUE( + notMatches("class X {}; void y(X *x) { x; }", + expr(hasType(ClassX)))); +} + +TEST(HasType, TakesDeclMatcherAndMatchesValueDecl) { + DeclarationMatcher ClassX = recordDecl(hasName("X")); + EXPECT_TRUE( + matches("class X {}; void y() { X x; }", varDecl(hasType(ClassX)))); + EXPECT_TRUE( + notMatches("class X {}; void y() { X *x; }", varDecl(hasType(ClassX)))); +} + +TEST(HasType, MatchesTypedefDecl) { + EXPECT_TRUE(matches("typedef int X;", typedefDecl(hasType(asString("int"))))); + EXPECT_TRUE(matches("typedef const int T;", + typedefDecl(hasType(asString("const int"))))); + EXPECT_TRUE(notMatches("typedef const int T;", + typedefDecl(hasType(asString("int"))))); + EXPECT_TRUE(matches("typedef int foo; typedef foo bar;", + typedefDecl(hasType(asString("foo")), hasName("bar")))); +} + +TEST(HasType, MatchesTypedefNameDecl) { + EXPECT_TRUE(matches("using X = int;", typedefNameDecl(hasType(asString("int"))))); + EXPECT_TRUE(matches("using T = const int;", + typedefNameDecl(hasType(asString("const int"))))); + EXPECT_TRUE(notMatches("using T = const int;", + typedefNameDecl(hasType(asString("int"))))); + EXPECT_TRUE(matches("using foo = int; using bar = foo;", + typedefNameDecl(hasType(asString("foo")), hasName("bar")))); +} + +TEST(HasTypeLoc, MatchesDeclaratorDecls) { + EXPECT_TRUE(matches("int x;", + varDecl(hasName("x"), hasTypeLoc(loc(asString("int")))))); + + // Make sure we don't crash on implicit constructors. + EXPECT_TRUE(notMatches("class X {}; X x;", + declaratorDecl(hasTypeLoc(loc(asString("int")))))); +} + + +TEST(Callee, MatchesDeclarations) { + StatementMatcher CallMethodX = callExpr(callee(cxxMethodDecl(hasName("x")))); + + EXPECT_TRUE(matches("class Y { void x() { x(); } };", CallMethodX)); + EXPECT_TRUE(notMatches("class Y { void x() {} };", CallMethodX)); + + CallMethodX = callExpr(callee(cxxConversionDecl())); + EXPECT_TRUE( + matches("struct Y { operator int() const; }; int i = Y();", CallMethodX)); + EXPECT_TRUE(notMatches("struct Y { operator int() const; }; Y y = Y();", + CallMethodX)); +} + +TEST(Callee, MatchesMemberExpressions) { + EXPECT_TRUE(matches("class Y { void x() { this->x(); } };", + callExpr(callee(memberExpr())))); + EXPECT_TRUE( + notMatches("class Y { void x() { this->x(); } };", callExpr(callee(callExpr())))); +} + +TEST(Matcher, Argument) { + StatementMatcher CallArgumentY = callExpr( + hasArgument(0, declRefExpr(to(varDecl(hasName("y")))))); + + EXPECT_TRUE(matches("void x(int) { int y; x(y); }", CallArgumentY)); + EXPECT_TRUE( + matches("class X { void x(int) { int y; x(y); } };", CallArgumentY)); + EXPECT_TRUE(notMatches("void x(int) { int z; x(z); }", CallArgumentY)); + + StatementMatcher WrongIndex = callExpr( + hasArgument(42, declRefExpr(to(varDecl(hasName("y")))))); + EXPECT_TRUE(notMatches("void x(int) { int y; x(y); }", WrongIndex)); +} + +TEST(Matcher, AnyArgument) { + StatementMatcher CallArgumentY = callExpr( + hasAnyArgument( + ignoringParenImpCasts(declRefExpr(to(varDecl(hasName("y"))))))); + EXPECT_TRUE(matches("void x(int, int) { int y; x(1, y); }", CallArgumentY)); + EXPECT_TRUE(matches("void x(int, int) { int y; x(y, 42); }", CallArgumentY)); + EXPECT_TRUE(notMatches("void x(int, int) { x(1, 2); }", CallArgumentY)); + + StatementMatcher ImplicitCastedArgument = callExpr( + hasAnyArgument(implicitCastExpr())); + EXPECT_TRUE(matches("void x(long) { int y; x(y); }", ImplicitCastedArgument)); +} + +TEST(ForEachArgumentWithParam, ReportsNoFalsePositives) { + StatementMatcher ArgumentY = + declRefExpr(to(varDecl(hasName("y")))).bind("arg"); + DeclarationMatcher IntParam = parmVarDecl(hasType(isInteger())).bind("param"); + StatementMatcher CallExpr = + callExpr(forEachArgumentWithParam(ArgumentY, IntParam)); + + // IntParam does not match. + EXPECT_TRUE(notMatches("void f(int* i) { int* y; f(y); }", CallExpr)); + // ArgumentY does not match. + EXPECT_TRUE(notMatches("void f(int i) { int x; f(x); }", CallExpr)); +} + +TEST(ForEachArgumentWithParam, MatchesCXXMemberCallExpr) { + StatementMatcher ArgumentY = + declRefExpr(to(varDecl(hasName("y")))).bind("arg"); + DeclarationMatcher IntParam = parmVarDecl(hasType(isInteger())).bind("param"); + StatementMatcher CallExpr = + callExpr(forEachArgumentWithParam(ArgumentY, IntParam)); + EXPECT_TRUE(matchAndVerifyResultTrue( + "struct S {" + " const S& operator[](int i) { return *this; }" + "};" + "void f(S S1) {" + " int y = 1;" + " S1[y];" + "}", + CallExpr, llvm::make_unique>("param", 1))); + + StatementMatcher CallExpr2 = + callExpr(forEachArgumentWithParam(ArgumentY, IntParam)); + EXPECT_TRUE(matchAndVerifyResultTrue( + "struct S {" + " static void g(int i);" + "};" + "void f() {" + " int y = 1;" + " S::g(y);" + "}", + CallExpr2, llvm::make_unique>("param", 1))); +} + +TEST(ForEachArgumentWithParam, MatchesCallExpr) { + StatementMatcher ArgumentY = + declRefExpr(to(varDecl(hasName("y")))).bind("arg"); + DeclarationMatcher IntParam = parmVarDecl(hasType(isInteger())).bind("param"); + StatementMatcher CallExpr = + callExpr(forEachArgumentWithParam(ArgumentY, IntParam)); + + EXPECT_TRUE( + matchAndVerifyResultTrue("void f(int i) { int y; f(y); }", CallExpr, + llvm::make_unique>( + "param"))); + EXPECT_TRUE( + matchAndVerifyResultTrue("void f(int i) { int y; f(y); }", CallExpr, + llvm::make_unique>( + "arg"))); + + EXPECT_TRUE(matchAndVerifyResultTrue( + "void f(int i, int j) { int y; f(y, y); }", CallExpr, + llvm::make_unique>("param", 2))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "void f(int i, int j) { int y; f(y, y); }", CallExpr, + llvm::make_unique>("arg", 2))); +} + +TEST(ForEachArgumentWithParam, MatchesConstructExpr) { + StatementMatcher ArgumentY = + declRefExpr(to(varDecl(hasName("y")))).bind("arg"); + DeclarationMatcher IntParam = parmVarDecl(hasType(isInteger())).bind("param"); + StatementMatcher ConstructExpr = + cxxConstructExpr(forEachArgumentWithParam(ArgumentY, IntParam)); + + EXPECT_TRUE(matchAndVerifyResultTrue( + "struct C {" + " C(int i) {}" + "};" + "int y = 0;" + "C Obj(y);", + ConstructExpr, + llvm::make_unique>("param"))); +} + +TEST(ForEachArgumentWithParam, HandlesBoundNodesForNonMatches) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "void g(int i, int j) {" + " int a;" + " int b;" + " int c;" + " g(a, 0);" + " g(a, b);" + " g(0, b);" + "}", + functionDecl( + forEachDescendant(varDecl().bind("v")), + forEachDescendant(callExpr(forEachArgumentWithParam( + declRefExpr(to(decl(equalsBoundNode("v")))), parmVarDecl())))), + llvm::make_unique>("v", 4))); +} + +TEST(QualType, hasCanonicalType) { + EXPECT_TRUE(notMatches("typedef int &int_ref;" + "int a;" + "int_ref b = a;", + varDecl(hasType(qualType(referenceType()))))); + EXPECT_TRUE( + matches("typedef int &int_ref;" + "int a;" + "int_ref b = a;", + varDecl(hasType(qualType(hasCanonicalType(referenceType())))))); +} + +TEST(HasParameter, CallsInnerMatcher) { + EXPECT_TRUE(matches("class X { void x(int) {} };", + cxxMethodDecl(hasParameter(0, varDecl())))); + EXPECT_TRUE(notMatches("class X { void x(int) {} };", + cxxMethodDecl(hasParameter(0, hasName("x"))))); +} + +TEST(HasParameter, DoesNotMatchIfIndexOutOfBounds) { + EXPECT_TRUE(notMatches("class X { void x(int) {} };", + cxxMethodDecl(hasParameter(42, varDecl())))); +} + +TEST(HasType, MatchesParameterVariableTypesStrictly) { + EXPECT_TRUE(matches( + "class X { void x(X x) {} };", + cxxMethodDecl(hasParameter(0, hasType(recordDecl(hasName("X"))))))); + EXPECT_TRUE(notMatches( + "class X { void x(const X &x) {} };", + cxxMethodDecl(hasParameter(0, hasType(recordDecl(hasName("X"))))))); + EXPECT_TRUE(matches("class X { void x(const X *x) {} };", + cxxMethodDecl(hasParameter( + 0, hasType(pointsTo(recordDecl(hasName("X")))))))); + EXPECT_TRUE(matches("class X { void x(const X &x) {} };", + cxxMethodDecl(hasParameter( + 0, hasType(references(recordDecl(hasName("X")))))))); +} + +TEST(HasAnyParameter, MatchesIndependentlyOfPosition) { + EXPECT_TRUE(matches( + "class Y {}; class X { void x(X x, Y y) {} };", + cxxMethodDecl(hasAnyParameter(hasType(recordDecl(hasName("X"))))))); + EXPECT_TRUE(matches( + "class Y {}; class X { void x(Y y, X x) {} };", + cxxMethodDecl(hasAnyParameter(hasType(recordDecl(hasName("X"))))))); +} + +TEST(Returns, MatchesReturnTypes) { + EXPECT_TRUE(matches("class Y { int f() { return 1; } };", + functionDecl(returns(asString("int"))))); + EXPECT_TRUE(notMatches("class Y { int f() { return 1; } };", + functionDecl(returns(asString("float"))))); + EXPECT_TRUE(matches("class Y { Y getMe() { return *this; } };", + functionDecl(returns(hasDeclaration( + recordDecl(hasName("Y"))))))); +} + +TEST(HasAnyParameter, DoesntMatchIfInnerMatcherDoesntMatch) { + EXPECT_TRUE(notMatches( + "class Y {}; class X { void x(int) {} };", + cxxMethodDecl(hasAnyParameter(hasType(recordDecl(hasName("X"))))))); +} + +TEST(HasAnyParameter, DoesNotMatchThisPointer) { + EXPECT_TRUE(notMatches("class Y {}; class X { void x() {} };", + cxxMethodDecl(hasAnyParameter( + hasType(pointsTo(recordDecl(hasName("X")))))))); +} + +TEST(HasName, MatchesParameterVariableDeclarations) { + EXPECT_TRUE(matches("class Y {}; class X { void x(int x) {} };", + cxxMethodDecl(hasAnyParameter(hasName("x"))))); + EXPECT_TRUE(notMatches("class Y {}; class X { void x(int) {} };", + cxxMethodDecl(hasAnyParameter(hasName("x"))))); +} + +TEST(Matcher, MatchesTypeTemplateArgument) { + EXPECT_TRUE(matches( + "template struct B {};" + "B b;", + classTemplateSpecializationDecl(hasAnyTemplateArgument(refersToType( + asString("int")))))); +} + +TEST(Matcher, MatchesDeclarationReferenceTemplateArgument) { + EXPECT_TRUE(matches( + "struct B { int next; };" + "template struct A {};" + "A<&B::next> a;", + classTemplateSpecializationDecl(hasAnyTemplateArgument( + refersToDeclaration(fieldDecl(hasName("next"))))))); + + EXPECT_TRUE(notMatches( + "template struct A {};" + "A a;", + classTemplateSpecializationDecl(hasAnyTemplateArgument( + refersToDeclaration(decl()))))); + + EXPECT_TRUE(matches( + "struct B { int next; };" + "template struct A {};" + "A<&B::next> a;", + templateSpecializationType(hasAnyTemplateArgument(isExpr( + hasDescendant(declRefExpr(to(fieldDecl(hasName("next")))))))))); + + EXPECT_TRUE(notMatches( + "template struct A {};" + "A a;", + templateSpecializationType(hasAnyTemplateArgument( + refersToDeclaration(decl()))))); +} + + +TEST(Matcher, MatchesSpecificArgument) { + EXPECT_TRUE(matches( + "template class A {};" + "A a;", + classTemplateSpecializationDecl(hasTemplateArgument( + 1, refersToType(asString("int")))))); + EXPECT_TRUE(notMatches( + "template class A {};" + "A a;", + classTemplateSpecializationDecl(hasTemplateArgument( + 1, refersToType(asString("int")))))); + + EXPECT_TRUE(matches( + "template class A {};" + "A a;", + templateSpecializationType(hasTemplateArgument( + 1, refersToType(asString("int")))))); + EXPECT_TRUE(notMatches( + "template class A {};" + "A a;", + templateSpecializationType(hasTemplateArgument( + 1, refersToType(asString("int")))))); +} + +TEST(TemplateArgument, Matches) { + EXPECT_TRUE(matches("template struct C {}; C c;", + classTemplateSpecializationDecl( + hasAnyTemplateArgument(templateArgument())))); + EXPECT_TRUE(matches( + "template struct C {}; C c;", + templateSpecializationType(hasAnyTemplateArgument(templateArgument())))); +} + +TEST(RefersToIntegralType, Matches) { + EXPECT_TRUE(matches("template struct C {}; C<42> c;", + classTemplateSpecializationDecl( + hasAnyTemplateArgument(refersToIntegralType( + asString("int")))))); + EXPECT_TRUE(notMatches("template struct C {}; C<42> c;", + classTemplateSpecializationDecl(hasAnyTemplateArgument( + refersToIntegralType(asString("int")))))); +} + +TEST(ConstructorDeclaration, SimpleCase) { + EXPECT_TRUE(matches("class Foo { Foo(int i); };", + cxxConstructorDecl(ofClass(hasName("Foo"))))); + EXPECT_TRUE(notMatches("class Foo { Foo(int i); };", + cxxConstructorDecl(ofClass(hasName("Bar"))))); +} + +TEST(DestructorDeclaration, MatchesVirtualDestructor) { + EXPECT_TRUE(matches("class Foo { virtual ~Foo(); };", + cxxDestructorDecl(ofClass(hasName("Foo"))))); +} + +TEST(DestructorDeclaration, DoesNotMatchImplicitDestructor) { + EXPECT_TRUE(notMatches("class Foo {};", + cxxDestructorDecl(ofClass(hasName("Foo"))))); +} + +TEST(HasAnyConstructorInitializer, SimpleCase) { + EXPECT_TRUE( + notMatches("class Foo { Foo() { } };", + cxxConstructorDecl(hasAnyConstructorInitializer(anything())))); + EXPECT_TRUE( + matches("class Foo {" + " Foo() : foo_() { }" + " int foo_;" + "};", + cxxConstructorDecl(hasAnyConstructorInitializer(anything())))); +} + +TEST(HasAnyConstructorInitializer, ForField) { + static const char Code[] = + "class Baz { };" + "class Foo {" + " Foo() : foo_() { }" + " Baz foo_;" + " Baz bar_;" + "};"; + EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( + forField(hasType(recordDecl(hasName("Baz")))))))); + EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( + forField(hasName("foo_")))))); + EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( + forField(hasType(recordDecl(hasName("Bar")))))))); +} + +TEST(HasAnyConstructorInitializer, WithInitializer) { + static const char Code[] = + "class Foo {" + " Foo() : foo_(0) { }" + " int foo_;" + "};"; + EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( + withInitializer(integerLiteral(equals(0))))))); + EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( + withInitializer(integerLiteral(equals(1))))))); +} + +TEST(HasAnyConstructorInitializer, IsWritten) { + static const char Code[] = + "struct Bar { Bar(){} };" + "class Foo {" + " Foo() : foo_() { }" + " Bar foo_;" + " Bar bar_;" + "};"; + EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( + allOf(forField(hasName("foo_")), isWritten()))))); + EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( + allOf(forField(hasName("bar_")), isWritten()))))); + EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( + allOf(forField(hasName("bar_")), unless(isWritten())))))); +} + +TEST(HasAnyConstructorInitializer, IsBaseInitializer) { + static const char Code[] = + "struct B {};" + "struct D : B {" + " int I;" + " D(int i) : I(i) {}" + "};" + "struct E : B {" + " E() : B() {}" + "};"; + EXPECT_TRUE(matches(Code, cxxConstructorDecl(allOf( + hasAnyConstructorInitializer(allOf(isBaseInitializer(), isWritten())), + hasName("E"))))); + EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(allOf( + hasAnyConstructorInitializer(allOf(isBaseInitializer(), isWritten())), + hasName("D"))))); + EXPECT_TRUE(matches(Code, cxxConstructorDecl(allOf( + hasAnyConstructorInitializer(allOf(isMemberInitializer(), isWritten())), + hasName("D"))))); + EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(allOf( + hasAnyConstructorInitializer(allOf(isMemberInitializer(), isWritten())), + hasName("E"))))); +} + +TEST(IfStmt, ChildTraversalMatchers) { + EXPECT_TRUE(matches("void f() { if (false) true; else false; }", + ifStmt(hasThen(cxxBoolLiteral(equals(true)))))); + EXPECT_TRUE(notMatches("void f() { if (false) false; else true; }", + ifStmt(hasThen(cxxBoolLiteral(equals(true)))))); + EXPECT_TRUE(matches("void f() { if (false) false; else true; }", + ifStmt(hasElse(cxxBoolLiteral(equals(true)))))); + EXPECT_TRUE(notMatches("void f() { if (false) true; else false; }", + ifStmt(hasElse(cxxBoolLiteral(equals(true)))))); +} + +TEST(MatchBinaryOperator, HasOperatorName) { + StatementMatcher OperatorOr = binaryOperator(hasOperatorName("||")); + + EXPECT_TRUE(matches("void x() { true || false; }", OperatorOr)); + EXPECT_TRUE(notMatches("void x() { true && false; }", OperatorOr)); +} + +TEST(MatchBinaryOperator, HasLHSAndHasRHS) { + StatementMatcher OperatorTrueFalse = + binaryOperator(hasLHS(cxxBoolLiteral(equals(true))), + hasRHS(cxxBoolLiteral(equals(false)))); + + EXPECT_TRUE(matches("void x() { true || false; }", OperatorTrueFalse)); + EXPECT_TRUE(matches("void x() { true && false; }", OperatorTrueFalse)); + EXPECT_TRUE(notMatches("void x() { false || true; }", OperatorTrueFalse)); + + StatementMatcher OperatorIntPointer = arraySubscriptExpr( + hasLHS(hasType(isInteger())), hasRHS(hasType(pointsTo(qualType())))); + EXPECT_TRUE(matches("void x() { 1[\"abc\"]; }", OperatorIntPointer)); + EXPECT_TRUE(notMatches("void x() { \"abc\"[1]; }", OperatorIntPointer)); +} + +TEST(MatchBinaryOperator, HasEitherOperand) { + StatementMatcher HasOperand = + binaryOperator(hasEitherOperand(cxxBoolLiteral(equals(false)))); + + EXPECT_TRUE(matches("void x() { true || false; }", HasOperand)); + EXPECT_TRUE(matches("void x() { false && true; }", HasOperand)); + EXPECT_TRUE(notMatches("void x() { true || true; }", HasOperand)); +} + +TEST(Matcher, BinaryOperatorTypes) { + // Integration test that verifies the AST provides all binary operators in + // a way we expect. + // FIXME: Operator ',' + EXPECT_TRUE( + matches("void x() { 3, 4; }", binaryOperator(hasOperatorName(",")))); + EXPECT_TRUE( + matches("bool b; bool c = (b = true);", + binaryOperator(hasOperatorName("=")))); + EXPECT_TRUE( + matches("bool b = 1 != 2;", binaryOperator(hasOperatorName("!=")))); + EXPECT_TRUE( + matches("bool b = 1 == 2;", binaryOperator(hasOperatorName("==")))); + EXPECT_TRUE(matches("bool b = 1 < 2;", binaryOperator(hasOperatorName("<")))); + EXPECT_TRUE( + matches("bool b = 1 <= 2;", binaryOperator(hasOperatorName("<=")))); + EXPECT_TRUE( + matches("int i = 1 << 2;", binaryOperator(hasOperatorName("<<")))); + EXPECT_TRUE( + matches("int i = 1; int j = (i <<= 2);", + binaryOperator(hasOperatorName("<<=")))); + EXPECT_TRUE(matches("bool b = 1 > 2;", binaryOperator(hasOperatorName(">")))); + EXPECT_TRUE( + matches("bool b = 1 >= 2;", binaryOperator(hasOperatorName(">=")))); + EXPECT_TRUE( + matches("int i = 1 >> 2;", binaryOperator(hasOperatorName(">>")))); + EXPECT_TRUE( + matches("int i = 1; int j = (i >>= 2);", + binaryOperator(hasOperatorName(">>=")))); + EXPECT_TRUE( + matches("int i = 42 ^ 23;", binaryOperator(hasOperatorName("^")))); + EXPECT_TRUE( + matches("int i = 42; int j = (i ^= 42);", + binaryOperator(hasOperatorName("^=")))); + EXPECT_TRUE( + matches("int i = 42 % 23;", binaryOperator(hasOperatorName("%")))); + EXPECT_TRUE( + matches("int i = 42; int j = (i %= 42);", + binaryOperator(hasOperatorName("%=")))); + EXPECT_TRUE( + matches("bool b = 42 &23;", binaryOperator(hasOperatorName("&")))); + EXPECT_TRUE( + matches("bool b = true && false;", + binaryOperator(hasOperatorName("&&")))); + EXPECT_TRUE( + matches("bool b = true; bool c = (b &= false);", + binaryOperator(hasOperatorName("&=")))); + EXPECT_TRUE( + matches("bool b = 42 | 23;", binaryOperator(hasOperatorName("|")))); + EXPECT_TRUE( + matches("bool b = true || false;", + binaryOperator(hasOperatorName("||")))); + EXPECT_TRUE( + matches("bool b = true; bool c = (b |= false);", + binaryOperator(hasOperatorName("|=")))); + EXPECT_TRUE( + matches("int i = 42 *23;", binaryOperator(hasOperatorName("*")))); + EXPECT_TRUE( + matches("int i = 42; int j = (i *= 23);", + binaryOperator(hasOperatorName("*=")))); + EXPECT_TRUE( + matches("int i = 42 / 23;", binaryOperator(hasOperatorName("/")))); + EXPECT_TRUE( + matches("int i = 42; int j = (i /= 23);", + binaryOperator(hasOperatorName("/=")))); + EXPECT_TRUE( + matches("int i = 42 + 23;", binaryOperator(hasOperatorName("+")))); + EXPECT_TRUE( + matches("int i = 42; int j = (i += 23);", + binaryOperator(hasOperatorName("+=")))); + EXPECT_TRUE( + matches("int i = 42 - 23;", binaryOperator(hasOperatorName("-")))); + EXPECT_TRUE( + matches("int i = 42; int j = (i -= 23);", + binaryOperator(hasOperatorName("-=")))); + EXPECT_TRUE( + matches("struct A { void x() { void (A::*a)(); (this->*a)(); } };", + binaryOperator(hasOperatorName("->*")))); + EXPECT_TRUE( + matches("struct A { void x() { void (A::*a)(); ((*this).*a)(); } };", + binaryOperator(hasOperatorName(".*")))); + + // Member expressions as operators are not supported in matches. + EXPECT_TRUE( + notMatches("struct A { void x(A *a) { a->x(this); } };", + binaryOperator(hasOperatorName("->")))); + + // Initializer assignments are not represented as operator equals. + EXPECT_TRUE( + notMatches("bool b = true;", binaryOperator(hasOperatorName("=")))); + + // Array indexing is not represented as operator. + EXPECT_TRUE(notMatches("int a[42]; void x() { a[23]; }", unaryOperator())); + + // Overloaded operators do not match at all. + EXPECT_TRUE(notMatches( + "struct A { bool operator&&(const A &a) const { return false; } };" + "void x() { A a, b; a && b; }", + binaryOperator())); +} + +TEST(MatchUnaryOperator, HasOperatorName) { + StatementMatcher OperatorNot = unaryOperator(hasOperatorName("!")); + + EXPECT_TRUE(matches("void x() { !true; } ", OperatorNot)); + EXPECT_TRUE(notMatches("void x() { true; } ", OperatorNot)); +} + +TEST(MatchUnaryOperator, HasUnaryOperand) { + StatementMatcher OperatorOnFalse = + unaryOperator(hasUnaryOperand(cxxBoolLiteral(equals(false)))); + + EXPECT_TRUE(matches("void x() { !false; }", OperatorOnFalse)); + EXPECT_TRUE(notMatches("void x() { !true; }", OperatorOnFalse)); +} + +TEST(Matcher, UnaryOperatorTypes) { + // Integration test that verifies the AST provides all unary operators in + // a way we expect. + EXPECT_TRUE(matches("bool b = !true;", unaryOperator(hasOperatorName("!")))); + EXPECT_TRUE( + matches("bool b; bool *p = &b;", unaryOperator(hasOperatorName("&")))); + EXPECT_TRUE(matches("int i = ~ 1;", unaryOperator(hasOperatorName("~")))); + EXPECT_TRUE( + matches("bool *p; bool b = *p;", unaryOperator(hasOperatorName("*")))); + EXPECT_TRUE( + matches("int i; int j = +i;", unaryOperator(hasOperatorName("+")))); + EXPECT_TRUE( + matches("int i; int j = -i;", unaryOperator(hasOperatorName("-")))); + EXPECT_TRUE( + matches("int i; int j = ++i;", unaryOperator(hasOperatorName("++")))); + EXPECT_TRUE( + matches("int i; int j = i++;", unaryOperator(hasOperatorName("++")))); + EXPECT_TRUE( + matches("int i; int j = --i;", unaryOperator(hasOperatorName("--")))); + EXPECT_TRUE( + matches("int i; int j = i--;", unaryOperator(hasOperatorName("--")))); + + // We don't match conversion operators. + EXPECT_TRUE(notMatches("int i; double d = (double)i;", unaryOperator())); + + // Function calls are not represented as operator. + EXPECT_TRUE(notMatches("void f(); void x() { f(); }", unaryOperator())); + + // Overloaded operators do not match at all. + // FIXME: We probably want to add that. + EXPECT_TRUE(notMatches( + "struct A { bool operator!() const { return false; } };" + "void x() { A a; !a; }", unaryOperator(hasOperatorName("!")))); +} + +TEST(ArraySubscriptMatchers, ArrayIndex) { + EXPECT_TRUE(matches( + "int i[2]; void f() { i[1] = 1; }", + arraySubscriptExpr(hasIndex(integerLiteral(equals(1)))))); + EXPECT_TRUE(matches( + "int i[2]; void f() { 1[i] = 1; }", + arraySubscriptExpr(hasIndex(integerLiteral(equals(1)))))); + EXPECT_TRUE(notMatches( + "int i[2]; void f() { i[1] = 1; }", + arraySubscriptExpr(hasIndex(integerLiteral(equals(0)))))); +} + +TEST(ArraySubscriptMatchers, MatchesArrayBase) { + EXPECT_TRUE(matches( + "int i[2]; void f() { i[1] = 2; }", + arraySubscriptExpr(hasBase(implicitCastExpr( + hasSourceExpression(declRefExpr())))))); +} + +TEST(Matcher, OfClass) { + StatementMatcher Constructor = cxxConstructExpr(hasDeclaration(cxxMethodDecl( + ofClass(hasName("X"))))); + + EXPECT_TRUE( + matches("class X { public: X(); }; void x(int) { X x; }", Constructor)); + EXPECT_TRUE( + matches("class X { public: X(); }; void x(int) { X x = X(); }", + Constructor)); + EXPECT_TRUE( + notMatches("class Y { public: Y(); }; void x(int) { Y y; }", + Constructor)); +} + +TEST(Matcher, VisitsTemplateInstantiations) { + EXPECT_TRUE(matches( + "class A { public: void x(); };" + "template class B { public: void y() { T t; t.x(); } };" + "void f() { B b; b.y(); }", + callExpr(callee(cxxMethodDecl(hasName("x")))))); + + EXPECT_TRUE(matches( + "class A { public: void x(); };" + "class C {" + " public:" + " template class B { public: void y() { T t; t.x(); } };" + "};" + "void f() {" + " C::B b; b.y();" + "}", + recordDecl(hasName("C"), hasDescendant(callExpr( + callee(cxxMethodDecl(hasName("x")))))))); +} + +TEST(For, ForLoopInternals) { + EXPECT_TRUE(matches("void f(){ int i; for (; i < 3 ; ); }", + forStmt(hasCondition(anything())))); + EXPECT_TRUE(matches("void f() { for (int i = 0; ;); }", + forStmt(hasLoopInit(anything())))); +} + +TEST(For, ForRangeLoopInternals) { + EXPECT_TRUE(matches("void f(){ int a[] {1, 2}; for (int i : a); }", + cxxForRangeStmt(hasLoopVariable(anything())))); + EXPECT_TRUE(matches( + "void f(){ int a[] {1, 2}; for (int i : a); }", + cxxForRangeStmt(hasRangeInit(declRefExpr(to(varDecl(hasName("a")))))))); +} + +TEST(For, NegativeForLoopInternals) { + EXPECT_TRUE(notMatches("void f(){ for (int i = 0; ; ++i); }", + forStmt(hasCondition(expr())))); + EXPECT_TRUE(notMatches("void f() {int i; for (; i < 4; ++i) {} }", + forStmt(hasLoopInit(anything())))); +} + +TEST(HasBody, FindsBodyOfForWhileDoLoops) { + EXPECT_TRUE(matches("void f() { for(;;) {} }", + forStmt(hasBody(compoundStmt())))); + EXPECT_TRUE(notMatches("void f() { for(;;); }", + forStmt(hasBody(compoundStmt())))); + EXPECT_TRUE(matches("void f() { while(true) {} }", + whileStmt(hasBody(compoundStmt())))); + EXPECT_TRUE(matches("void f() { do {} while(true); }", + doStmt(hasBody(compoundStmt())))); + EXPECT_TRUE(matches("void f() { int p[2]; for (auto x : p) {} }", + cxxForRangeStmt(hasBody(compoundStmt())))); + EXPECT_TRUE(matches("void f() {}", functionDecl(hasBody(compoundStmt())))); + EXPECT_TRUE(notMatches("void f();", functionDecl(hasBody(compoundStmt())))); + EXPECT_TRUE(matches("void f(); void f() {}", + functionDecl(hasBody(compoundStmt())))); +} + +TEST(HasAnySubstatement, MatchesForTopLevelCompoundStatement) { + // The simplest case: every compound statement is in a function + // definition, and the function body itself must be a compound + // statement. + EXPECT_TRUE(matches("void f() { for (;;); }", + compoundStmt(hasAnySubstatement(forStmt())))); +} + +TEST(HasAnySubstatement, IsNotRecursive) { + // It's really "has any immediate substatement". + EXPECT_TRUE(notMatches("void f() { if (true) for (;;); }", + compoundStmt(hasAnySubstatement(forStmt())))); +} + +TEST(HasAnySubstatement, MatchesInNestedCompoundStatements) { + EXPECT_TRUE(matches("void f() { if (true) { for (;;); } }", + compoundStmt(hasAnySubstatement(forStmt())))); +} + +TEST(HasAnySubstatement, FindsSubstatementBetweenOthers) { + EXPECT_TRUE(matches("void f() { 1; 2; 3; for (;;); 4; 5; 6; }", + compoundStmt(hasAnySubstatement(forStmt())))); +} + +TEST(Member, MatchesMemberAllocationFunction) { + // Fails in C++11 mode + EXPECT_TRUE(matchesConditionally( + "namespace std { typedef typeof(sizeof(int)) size_t; }" + "class X { void *operator new(std::size_t); };", + cxxMethodDecl(ofClass(hasName("X"))), true, "-std=gnu++98")); + + EXPECT_TRUE(matches("class X { void operator delete(void*); };", + cxxMethodDecl(ofClass(hasName("X"))))); + + // Fails in C++11 mode + EXPECT_TRUE(matchesConditionally( + "namespace std { typedef typeof(sizeof(int)) size_t; }" + "class X { void operator delete[](void*, std::size_t); };", + cxxMethodDecl(ofClass(hasName("X"))), true, "-std=gnu++98")); +} + +TEST(HasDestinationType, MatchesSimpleCase) { + EXPECT_TRUE(matches("char* p = static_cast(0);", + cxxStaticCastExpr(hasDestinationType( + pointsTo(TypeMatcher(anything())))))); +} + +TEST(HasImplicitDestinationType, MatchesSimpleCase) { + // This test creates an implicit const cast. + EXPECT_TRUE(matches("int x; const int i = x;", + implicitCastExpr( + hasImplicitDestinationType(isInteger())))); + // This test creates an implicit array-to-pointer cast. + EXPECT_TRUE(matches("int arr[3]; int *p = arr;", + implicitCastExpr(hasImplicitDestinationType( + pointsTo(TypeMatcher(anything())))))); +} + +TEST(HasImplicitDestinationType, DoesNotMatchIncorrectly) { + // This test creates an implicit cast from int to char. + EXPECT_TRUE(notMatches("char c = 0;", + implicitCastExpr(hasImplicitDestinationType( + unless(anything()))))); + // This test creates an implicit array-to-pointer cast. + EXPECT_TRUE(notMatches("int arr[3]; int *p = arr;", + implicitCastExpr(hasImplicitDestinationType( + unless(anything()))))); +} + +TEST(IgnoringImpCasts, MatchesImpCasts) { + // This test checks that ignoringImpCasts matches when implicit casts are + // present and its inner matcher alone does not match. + // Note that this test creates an implicit const cast. + EXPECT_TRUE(matches("int x = 0; const int y = x;", + varDecl(hasInitializer(ignoringImpCasts( + declRefExpr(to(varDecl(hasName("x"))))))))); + // This test creates an implict cast from int to char. + EXPECT_TRUE(matches("char x = 0;", + varDecl(hasInitializer(ignoringImpCasts( + integerLiteral(equals(0))))))); +} + +TEST(IgnoringImpCasts, DoesNotMatchIncorrectly) { + // These tests verify that ignoringImpCasts does not match if the inner + // matcher does not match. + // Note that the first test creates an implicit const cast. + EXPECT_TRUE(notMatches("int x; const int y = x;", + varDecl(hasInitializer(ignoringImpCasts( + unless(anything())))))); + EXPECT_TRUE(notMatches("int x; int y = x;", + varDecl(hasInitializer(ignoringImpCasts( + unless(anything())))))); + + // These tests verify that ignoringImplictCasts does not look through explicit + // casts or parentheses. + EXPECT_TRUE(notMatches("char* p = static_cast(0);", + varDecl(hasInitializer(ignoringImpCasts( + integerLiteral()))))); + EXPECT_TRUE(notMatches("int i = (0);", + varDecl(hasInitializer(ignoringImpCasts( + integerLiteral()))))); + EXPECT_TRUE(notMatches("float i = (float)0;", + varDecl(hasInitializer(ignoringImpCasts( + integerLiteral()))))); + EXPECT_TRUE(notMatches("float i = float(0);", + varDecl(hasInitializer(ignoringImpCasts( + integerLiteral()))))); +} + +TEST(IgnoringImpCasts, MatchesWithoutImpCasts) { + // This test verifies that expressions that do not have implicit casts + // still match the inner matcher. + EXPECT_TRUE(matches("int x = 0; int &y = x;", + varDecl(hasInitializer(ignoringImpCasts( + declRefExpr(to(varDecl(hasName("x"))))))))); +} + +TEST(IgnoringParenCasts, MatchesParenCasts) { + // This test checks that ignoringParenCasts matches when parentheses and/or + // casts are present and its inner matcher alone does not match. + EXPECT_TRUE(matches("int x = (0);", + varDecl(hasInitializer(ignoringParenCasts( + integerLiteral(equals(0))))))); + EXPECT_TRUE(matches("int x = (((((0)))));", + varDecl(hasInitializer(ignoringParenCasts( + integerLiteral(equals(0))))))); + + // This test creates an implict cast from int to char in addition to the + // parentheses. + EXPECT_TRUE(matches("char x = (0);", + varDecl(hasInitializer(ignoringParenCasts( + integerLiteral(equals(0))))))); + + EXPECT_TRUE(matches("char x = (char)0;", + varDecl(hasInitializer(ignoringParenCasts( + integerLiteral(equals(0))))))); + EXPECT_TRUE(matches("char* p = static_cast(0);", + varDecl(hasInitializer(ignoringParenCasts( + integerLiteral(equals(0))))))); +} + +TEST(IgnoringParenCasts, MatchesWithoutParenCasts) { + // This test verifies that expressions that do not have any casts still match. + EXPECT_TRUE(matches("int x = 0;", + varDecl(hasInitializer(ignoringParenCasts( + integerLiteral(equals(0))))))); +} + +TEST(IgnoringParenCasts, DoesNotMatchIncorrectly) { + // These tests verify that ignoringImpCasts does not match if the inner + // matcher does not match. + EXPECT_TRUE(notMatches("int x = ((0));", + varDecl(hasInitializer(ignoringParenCasts( + unless(anything())))))); + + // This test creates an implicit cast from int to char in addition to the + // parentheses. + EXPECT_TRUE(notMatches("char x = ((0));", + varDecl(hasInitializer(ignoringParenCasts( + unless(anything())))))); + + EXPECT_TRUE(notMatches("char *x = static_cast((0));", + varDecl(hasInitializer(ignoringParenCasts( + unless(anything())))))); +} + +TEST(IgnoringParenAndImpCasts, MatchesParenImpCasts) { + // This test checks that ignoringParenAndImpCasts matches when + // parentheses and/or implicit casts are present and its inner matcher alone + // does not match. + // Note that this test creates an implicit const cast. + EXPECT_TRUE(matches("int x = 0; const int y = x;", + varDecl(hasInitializer(ignoringParenImpCasts( + declRefExpr(to(varDecl(hasName("x"))))))))); + // This test creates an implicit cast from int to char. + EXPECT_TRUE(matches("const char x = (0);", + varDecl(hasInitializer(ignoringParenImpCasts( + integerLiteral(equals(0))))))); +} + +TEST(IgnoringParenAndImpCasts, MatchesWithoutParenImpCasts) { + // This test verifies that expressions that do not have parentheses or + // implicit casts still match. + EXPECT_TRUE(matches("int x = 0; int &y = x;", + varDecl(hasInitializer(ignoringParenImpCasts( + declRefExpr(to(varDecl(hasName("x"))))))))); + EXPECT_TRUE(matches("int x = 0;", + varDecl(hasInitializer(ignoringParenImpCasts( + integerLiteral(equals(0))))))); +} + +TEST(IgnoringParenAndImpCasts, DoesNotMatchIncorrectly) { + // These tests verify that ignoringParenImpCasts does not match if + // the inner matcher does not match. + // This test creates an implicit cast. + EXPECT_TRUE(notMatches("char c = ((3));", + varDecl(hasInitializer(ignoringParenImpCasts( + unless(anything())))))); + // These tests verify that ignoringParenAndImplictCasts does not look + // through explicit casts. + EXPECT_TRUE(notMatches("float y = (float(0));", + varDecl(hasInitializer(ignoringParenImpCasts( + integerLiteral()))))); + EXPECT_TRUE(notMatches("float y = (float)0;", + varDecl(hasInitializer(ignoringParenImpCasts( + integerLiteral()))))); + EXPECT_TRUE(notMatches("char* p = static_cast(0);", + varDecl(hasInitializer(ignoringParenImpCasts( + integerLiteral()))))); +} + +TEST(HasSourceExpression, MatchesImplicitCasts) { + EXPECT_TRUE(matches("class string {}; class URL { public: URL(string s); };" + "void r() {string a_string; URL url = a_string; }", + implicitCastExpr( + hasSourceExpression(cxxConstructExpr())))); +} + +TEST(HasSourceExpression, MatchesExplicitCasts) { + EXPECT_TRUE(matches("float x = static_cast(42);", + explicitCastExpr( + hasSourceExpression(hasDescendant( + expr(integerLiteral())))))); +} + +TEST(UsingDeclaration, MatchesSpecificTarget) { + EXPECT_TRUE(matches("namespace f { int a; void b(); } using f::b;", + usingDecl(hasAnyUsingShadowDecl( + hasTargetDecl(functionDecl()))))); + EXPECT_TRUE(notMatches("namespace f { int a; void b(); } using f::a;", + usingDecl(hasAnyUsingShadowDecl( + hasTargetDecl(functionDecl()))))); +} + +TEST(UsingDeclaration, ThroughUsingDeclaration) { + EXPECT_TRUE(matches( + "namespace a { void f(); } using a::f; void g() { f(); }", + declRefExpr(throughUsingDecl(anything())))); + EXPECT_TRUE(notMatches( + "namespace a { void f(); } using a::f; void g() { a::f(); }", + declRefExpr(throughUsingDecl(anything())))); +} + +TEST(SingleDecl, IsSingleDecl) { + StatementMatcher SingleDeclStmt = + declStmt(hasSingleDecl(varDecl(hasInitializer(anything())))); + EXPECT_TRUE(matches("void f() {int a = 4;}", SingleDeclStmt)); + EXPECT_TRUE(notMatches("void f() {int a;}", SingleDeclStmt)); + EXPECT_TRUE(notMatches("void f() {int a = 4, b = 3;}", + SingleDeclStmt)); +} + +TEST(DeclStmt, ContainsDeclaration) { + DeclarationMatcher MatchesInit = varDecl(hasInitializer(anything())); + + EXPECT_TRUE(matches("void f() {int a = 4;}", + declStmt(containsDeclaration(0, MatchesInit)))); + EXPECT_TRUE(matches("void f() {int a = 4, b = 3;}", + declStmt(containsDeclaration(0, MatchesInit), + containsDeclaration(1, MatchesInit)))); + unsigned WrongIndex = 42; + EXPECT_TRUE(notMatches("void f() {int a = 4, b = 3;}", + declStmt(containsDeclaration(WrongIndex, + MatchesInit)))); +} + +TEST(SwitchCase, MatchesEachCase) { + EXPECT_TRUE(notMatches("void x() { switch(42); }", + switchStmt(forEachSwitchCase(caseStmt())))); + EXPECT_TRUE(matches("void x() { switch(42) case 42:; }", + switchStmt(forEachSwitchCase(caseStmt())))); + EXPECT_TRUE(matches("void x() { switch(42) { case 42:; } }", + switchStmt(forEachSwitchCase(caseStmt())))); + EXPECT_TRUE(notMatches( + "void x() { if (1) switch(42) { case 42: switch (42) { default:; } } }", + ifStmt(has(switchStmt(forEachSwitchCase(defaultStmt())))))); + EXPECT_TRUE(matches("void x() { switch(42) { case 1+1: case 4:; } }", + switchStmt(forEachSwitchCase( + caseStmt(hasCaseConstant(integerLiteral())))))); + EXPECT_TRUE(notMatches("void x() { switch(42) { case 1+1: case 2+2:; } }", + switchStmt(forEachSwitchCase( + caseStmt(hasCaseConstant(integerLiteral())))))); + EXPECT_TRUE(notMatches("void x() { switch(42) { case 1 ... 2:; } }", + switchStmt(forEachSwitchCase( + caseStmt(hasCaseConstant(integerLiteral())))))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "void x() { switch (42) { case 1: case 2: case 3: default:; } }", + switchStmt(forEachSwitchCase(caseStmt().bind("x"))), + llvm::make_unique>("x", 3))); +} + +TEST(ForEachConstructorInitializer, MatchesInitializers) { + EXPECT_TRUE(matches( + "struct X { X() : i(42), j(42) {} int i, j; };", + cxxConstructorDecl(forEachConstructorInitializer(cxxCtorInitializer())))); +} + +TEST(HasConditionVariableStatement, DoesNotMatchCondition) { + EXPECT_TRUE(notMatches( + "void x() { if(true) {} }", + ifStmt(hasConditionVariableStatement(declStmt())))); + EXPECT_TRUE(notMatches( + "void x() { int x; if((x = 42)) {} }", + ifStmt(hasConditionVariableStatement(declStmt())))); +} + +TEST(HasConditionVariableStatement, MatchesConditionVariables) { + EXPECT_TRUE(matches( + "void x() { if(int* a = 0) {} }", + ifStmt(hasConditionVariableStatement(declStmt())))); +} + +TEST(ForEach, BindsOneNode) { + EXPECT_TRUE(matchAndVerifyResultTrue("class C { int x; };", + recordDecl(hasName("C"), forEach(fieldDecl(hasName("x")).bind("x"))), + llvm::make_unique>("x", 1))); +} + +TEST(ForEach, BindsMultipleNodes) { + EXPECT_TRUE(matchAndVerifyResultTrue("class C { int x; int y; int z; };", + recordDecl(hasName("C"), forEach(fieldDecl().bind("f"))), + llvm::make_unique>("f", 3))); +} + +TEST(ForEach, BindsRecursiveCombinations) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class C { class D { int x; int y; }; class E { int y; int z; }; };", + recordDecl(hasName("C"), + forEach(recordDecl(forEach(fieldDecl().bind("f"))))), + llvm::make_unique>("f", 4))); +} + +TEST(ForEachDescendant, BindsOneNode) { + EXPECT_TRUE(matchAndVerifyResultTrue("class C { class D { int x; }; };", + recordDecl(hasName("C"), + forEachDescendant(fieldDecl(hasName("x")).bind("x"))), + llvm::make_unique>("x", 1))); +} + +TEST(ForEachDescendant, NestedForEachDescendant) { + DeclarationMatcher m = recordDecl( + isDefinition(), decl().bind("x"), hasName("C")); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A { class B { class C {}; }; };", + recordDecl(hasName("A"), anyOf(m, forEachDescendant(m))), + llvm::make_unique>("x", "C"))); + + // Check that a partial match of 'm' that binds 'x' in the + // first part of anyOf(m, anything()) will not overwrite the + // binding created by the earlier binding in the hasDescendant. + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A { class B { class C {}; }; };", + recordDecl(hasName("A"), allOf(hasDescendant(m), anyOf(m, anything()))), + llvm::make_unique>("x", "C"))); +} + +TEST(ForEachDescendant, BindsMultipleNodes) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class C { class D { int x; int y; }; " + " class E { class F { int y; int z; }; }; };", + recordDecl(hasName("C"), forEachDescendant(fieldDecl().bind("f"))), + llvm::make_unique>("f", 4))); +} + +TEST(ForEachDescendant, BindsRecursiveCombinations) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class C { class D { " + " class E { class F { class G { int y; int z; }; }; }; }; };", + recordDecl(hasName("C"), forEachDescendant(recordDecl( + forEachDescendant(fieldDecl().bind("f"))))), + llvm::make_unique>("f", 8))); +} + +TEST(ForEachDescendant, BindsCombinations) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "void f() { if(true) {} if (true) {} while (true) {} if (true) {} while " + "(true) {} }", + compoundStmt(forEachDescendant(ifStmt().bind("if")), + forEachDescendant(whileStmt().bind("while"))), + llvm::make_unique>("if", 6))); +} + +TEST(Has, DoesNotDeleteBindings) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class X { int a; };", recordDecl(decl().bind("x"), has(fieldDecl())), + llvm::make_unique>("x", 1))); +} + +TEST(LoopingMatchers, DoNotOverwritePreviousMatchResultOnFailure) { + // Those matchers cover all the cases where an inner matcher is called + // and there is not a 1:1 relationship between the match of the outer + // matcher and the match of the inner matcher. + // The pattern to look for is: + // ... return InnerMatcher.matches(...); ... + // In which case no special handling is needed. + // + // On the other hand, if there are multiple alternative matches + // (for example forEach*) or matches might be discarded (for example has*) + // the implementation must make sure that the discarded matches do not + // affect the bindings. + // When new such matchers are added, add a test here that: + // - matches a simple node, and binds it as the first thing in the matcher: + // recordDecl(decl().bind("x"), hasName("X"))) + // - uses the matcher under test afterwards in a way that not the first + // alternative is matched; for anyOf, that means the first branch + // would need to return false; for hasAncestor, it means that not + // the direct parent matches the inner matcher. + + EXPECT_TRUE(matchAndVerifyResultTrue( + "class X { int y; };", + recordDecl( + recordDecl().bind("x"), hasName("::X"), + anyOf(forEachDescendant(recordDecl(hasName("Y"))), anything())), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class X {};", recordDecl(recordDecl().bind("x"), hasName("::X"), + anyOf(unless(anything()), anything())), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "template class X {}; X x;", + classTemplateSpecializationDecl( + decl().bind("x"), + hasAnyTemplateArgument(refersToType(asString("int")))), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class X { void f(); void g(); };", + cxxRecordDecl(decl().bind("x"), hasMethod(hasName("g"))), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class X { X() : a(1), b(2) {} double a; int b; };", + recordDecl(decl().bind("x"), + has(cxxConstructorDecl( + hasAnyConstructorInitializer(forField(hasName("b")))))), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "void x(int, int) { x(0, 42); }", + callExpr(expr().bind("x"), hasAnyArgument(integerLiteral(equals(42)))), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "void x(int, int y) {}", + functionDecl(decl().bind("x"), hasAnyParameter(hasName("y"))), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "void x() { return; if (true) {} }", + functionDecl(decl().bind("x"), + has(compoundStmt(hasAnySubstatement(ifStmt())))), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "namespace X { void b(int); void b(); }" + "using X::b;", + usingDecl(decl().bind("x"), hasAnyUsingShadowDecl(hasTargetDecl( + functionDecl(parameterCountIs(1))))), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A{}; class B{}; class C : B, A {};", + cxxRecordDecl(decl().bind("x"), isDerivedFrom("::A")), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A{}; typedef A B; typedef A C; typedef A D;" + "class E : A {};", + cxxRecordDecl(decl().bind("x"), isDerivedFrom("C")), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A { class B { void f() {} }; };", + functionDecl(decl().bind("x"), hasAncestor(recordDecl(hasName("::A")))), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "template struct A { struct B {" + " void f() { if(true) {} }" + "}; };" + "void t() { A::B b; b.f(); }", + ifStmt(stmt().bind("x"), hasAncestor(recordDecl(hasName("::A")))), + llvm::make_unique>("x", 2))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A {};", + recordDecl(hasName("::A"), decl().bind("x"), unless(hasName("fooble"))), + llvm::make_unique>("x", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A { A() : s(), i(42) {} const char *s; int i; };", + cxxConstructorDecl(hasName("::A::A"), decl().bind("x"), + forEachConstructorInitializer(forField(hasName("i")))), + llvm::make_unique>("x", 1))); +} + +TEST(ForEachDescendant, BindsCorrectNodes) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class C { void f(); int i; };", + recordDecl(hasName("C"), forEachDescendant(decl().bind("decl"))), + llvm::make_unique>("decl", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class C { void f() {} int i; };", + recordDecl(hasName("C"), forEachDescendant(decl().bind("decl"))), + llvm::make_unique>("decl", 1))); +} + +TEST(FindAll, BindsNodeOnMatch) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A {};", + recordDecl(hasName("::A"), findAll(recordDecl(hasName("::A")).bind("v"))), + llvm::make_unique>("v", 1))); +} + +TEST(FindAll, BindsDescendantNodeOnMatch) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A { int a; int b; };", + recordDecl(hasName("::A"), findAll(fieldDecl().bind("v"))), + llvm::make_unique>("v", 2))); +} + +TEST(FindAll, BindsNodeAndDescendantNodesOnOneMatch) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A { int a; int b; };", + recordDecl(hasName("::A"), + findAll(decl(anyOf(recordDecl(hasName("::A")).bind("v"), + fieldDecl().bind("v"))))), + llvm::make_unique>("v", 3))); + + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A { class B {}; class C {}; };", + recordDecl(hasName("::A"), findAll(recordDecl(isDefinition()).bind("v"))), + llvm::make_unique>("v", 3))); +} + +TEST(HasAncenstor, MatchesDeclarationAncestors) { + EXPECT_TRUE(matches( + "class A { class B { class C {}; }; };", + recordDecl(hasName("C"), hasAncestor(recordDecl(hasName("A")))))); +} + +TEST(HasAncenstor, FailsIfNoAncestorMatches) { + EXPECT_TRUE(notMatches( + "class A { class B { class C {}; }; };", + recordDecl(hasName("C"), hasAncestor(recordDecl(hasName("X")))))); +} + +TEST(HasAncestor, MatchesDeclarationsThatGetVisitedLater) { + EXPECT_TRUE(matches( + "class A { class B { void f() { C c; } class C {}; }; };", + varDecl(hasName("c"), hasType(recordDecl(hasName("C"), + hasAncestor(recordDecl(hasName("A")))))))); +} + +TEST(HasAncenstor, MatchesStatementAncestors) { + EXPECT_TRUE(matches( + "void f() { if (true) { while (false) { 42; } } }", + integerLiteral(equals(42), hasAncestor(ifStmt())))); +} + +TEST(HasAncestor, DrillsThroughDifferentHierarchies) { + EXPECT_TRUE(matches( + "void f() { if (true) { int x = 42; } }", + integerLiteral(equals(42), hasAncestor(functionDecl(hasName("f")))))); +} + +TEST(HasAncestor, BindsRecursiveCombinations) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class C { class D { class E { class F { int y; }; }; }; };", + fieldDecl(hasAncestor(recordDecl(hasAncestor(recordDecl().bind("r"))))), + llvm::make_unique>("r", 1))); +} + +TEST(HasAncestor, BindsCombinationsWithHasDescendant) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class C { class D { class E { class F { int y; }; }; }; };", + fieldDecl(hasAncestor( + decl( + hasDescendant(recordDecl(isDefinition(), + hasAncestor(recordDecl()))) + ).bind("d") + )), + llvm::make_unique>("d", "E"))); +} + +TEST(HasAncestor, MatchesClosestAncestor) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "template struct C {" + " void f(int) {" + " struct I { void g(T) { int x; } } i; i.g(42);" + " }" + "};" + "template struct C;", + varDecl(hasName("x"), + hasAncestor(functionDecl(hasParameter( + 0, varDecl(hasType(asString("int"))))).bind("f"))).bind("v"), + llvm::make_unique>("f", "g", 2))); +} + +TEST(HasAncestor, MatchesInTemplateInstantiations) { + EXPECT_TRUE(matches( + "template struct A { struct B { struct C { T t; }; }; }; " + "A::B::C a;", + fieldDecl(hasType(asString("int")), + hasAncestor(recordDecl(hasName("A")))))); +} + +TEST(HasAncestor, MatchesInImplicitCode) { + EXPECT_TRUE(matches( + "struct X {}; struct A { A() {} X x; };", + cxxConstructorDecl( + hasAnyConstructorInitializer(withInitializer(expr( + hasAncestor(recordDecl(hasName("A"))))))))); +} + +TEST(HasParent, MatchesOnlyParent) { + EXPECT_TRUE(matches( + "void f() { if (true) { int x = 42; } }", + compoundStmt(hasParent(ifStmt())))); + EXPECT_TRUE(notMatches( + "void f() { for (;;) { int x = 42; } }", + compoundStmt(hasParent(ifStmt())))); + EXPECT_TRUE(notMatches( + "void f() { if (true) for (;;) { int x = 42; } }", + compoundStmt(hasParent(ifStmt())))); +} + +TEST(HasAncestor, MatchesAllAncestors) { + EXPECT_TRUE(matches( + "template struct C { static void f() { 42; } };" + "void t() { C::f(); }", + integerLiteral( + equals(42), + allOf( + hasAncestor(cxxRecordDecl(isTemplateInstantiation())), + hasAncestor(cxxRecordDecl(unless(isTemplateInstantiation()))))))); +} + +TEST(HasAncestor, ImplicitArrayCopyCtorDeclRefExpr) { + EXPECT_TRUE(matches("struct MyClass {\n" + " int c[1];\n" + " static MyClass Create() { return MyClass(); }\n" + "};", + declRefExpr(to(decl(hasAncestor(decl())))))); +} + +TEST(HasAncestor, AnonymousUnionMemberExpr) { + EXPECT_TRUE(matches("int F() {\n" + " union { int i; };\n" + " return i;\n" + "}\n", + memberExpr(member(hasAncestor(decl()))))); + EXPECT_TRUE(matches("void f() {\n" + " struct {\n" + " struct { int a; int b; };\n" + " } s;\n" + " s.a = 4;\n" + "}\n", + memberExpr(member(hasAncestor(decl()))))); + EXPECT_TRUE(matches("void f() {\n" + " struct {\n" + " struct { int a; int b; };\n" + " } s;\n" + " s.a = 4;\n" + "}\n", + declRefExpr(to(decl(hasAncestor(decl())))))); +} +TEST(HasAncestor, NonParmDependentTemplateParmVarDeclRefExpr) { + EXPECT_TRUE(matches("struct PartitionAllocator {\n" + " template\n" + " static int quantizedSize(int count) {\n" + " return count;\n" + " }\n" + " void f() { quantizedSize(10); }\n" + "};", + declRefExpr(to(decl(hasAncestor(decl())))))); +} + +TEST(HasAncestor, AddressOfExplicitSpecializationFunction) { + EXPECT_TRUE(matches("template void f();\n" + "template <> void f();\n" + "void (*get_f())() { return f; }\n", + declRefExpr(to(decl(hasAncestor(decl())))))); +} + +TEST(HasParent, MatchesAllParents) { + EXPECT_TRUE(matches( + "template struct C { static void f() { 42; } };" + "void t() { C::f(); }", + integerLiteral( + equals(42), + hasParent(compoundStmt(hasParent(functionDecl( + hasParent(cxxRecordDecl(isTemplateInstantiation()))))))))); + EXPECT_TRUE( + matches("template struct C { static void f() { 42; } };" + "void t() { C::f(); }", + integerLiteral( + equals(42), + hasParent(compoundStmt(hasParent(functionDecl(hasParent( + cxxRecordDecl(unless(isTemplateInstantiation())))))))))); + EXPECT_TRUE(matches( + "template struct C { static void f() { 42; } };" + "void t() { C::f(); }", + integerLiteral(equals(42), + hasParent(compoundStmt( + allOf(hasParent(functionDecl(hasParent( + cxxRecordDecl(isTemplateInstantiation())))), + hasParent(functionDecl(hasParent(cxxRecordDecl( + unless(isTemplateInstantiation()))))))))))); + EXPECT_TRUE( + notMatches("template struct C { static void f() {} };" + "void t() { C::f(); }", + compoundStmt(hasParent(recordDecl())))); +} + +TEST(HasParent, NoDuplicateParents) { + class HasDuplicateParents : public BoundNodesCallback { + public: + bool run(const BoundNodes *Nodes) override { return false; } + bool run(const BoundNodes *Nodes, ASTContext *Context) override { + const Stmt *Node = Nodes->getNodeAs("node"); + std::set Parents; + for (const auto &Parent : Context->getParents(*Node)) { + if (!Parents.insert(Parent.getMemoizationData()).second) { + return true; + } + } + return false; + } + }; + EXPECT_FALSE(matchAndVerifyResultTrue( + "template int Foo() { return 1 + 2; }\n" + "int x = Foo() + Foo();", + stmt().bind("node"), llvm::make_unique())); +} + +TEST(TypeMatching, PointeeTypes) { + EXPECT_TRUE(matches("int b; int &a = b;", + referenceType(pointee(builtinType())))); + EXPECT_TRUE(matches("int *a;", pointerType(pointee(builtinType())))); + + EXPECT_TRUE(matches("int *a;", + loc(pointerType(pointee(builtinType()))))); + + EXPECT_TRUE(matches( + "int const *A;", + pointerType(pointee(isConstQualified(), builtinType())))); + EXPECT_TRUE(notMatches( + "int *A;", + pointerType(pointee(isConstQualified(), builtinType())))); +} + +TEST(ElaboratedTypeNarrowing, hasQualifier) { + EXPECT_TRUE(matches( + "namespace N {" + " namespace M {" + " class D {};" + " }" + "}" + "N::M::D d;", + elaboratedType(hasQualifier(hasPrefix(specifiesNamespace(hasName("N"))))))); + EXPECT_TRUE(notMatches( + "namespace M {" + " class D {};" + "}" + "M::D d;", + elaboratedType(hasQualifier(hasPrefix(specifiesNamespace(hasName("N"))))))); + EXPECT_TRUE(notMatches( + "struct D {" + "} d;", + elaboratedType(hasQualifier(nestedNameSpecifier())))); +} + +TEST(ElaboratedTypeNarrowing, namesType) { + EXPECT_TRUE(matches( + "namespace N {" + " namespace M {" + " class D {};" + " }" + "}" + "N::M::D d;", + elaboratedType(elaboratedType(namesType(recordType( + hasDeclaration(namedDecl(hasName("D"))))))))); + EXPECT_TRUE(notMatches( + "namespace M {" + " class D {};" + "}" + "M::D d;", + elaboratedType(elaboratedType(namesType(typedefType()))))); +} + +TEST(NNS, BindsNestedNameSpecifiers) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "namespace ns { struct E { struct B {}; }; } ns::E::B b;", + nestedNameSpecifier(specifiesType(asString("struct ns::E"))).bind("nns"), + llvm::make_unique>( + "nns", "ns::struct E::"))); +} + +TEST(NNS, BindsNestedNameSpecifierLocs) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "namespace ns { struct B {}; } ns::B b;", + loc(nestedNameSpecifier()).bind("loc"), + llvm::make_unique>("loc", 1))); +} + +TEST(NNS, DescendantsOfNestedNameSpecifiers) { + std::string Fragment = + "namespace a { struct A { struct B { struct C {}; }; }; };" + "void f() { a::A::B::C c; }"; + EXPECT_TRUE(matches( + Fragment, + nestedNameSpecifier(specifiesType(asString("struct a::A::B")), + hasDescendant(nestedNameSpecifier( + specifiesNamespace(hasName("a"))))))); + EXPECT_TRUE(notMatches( + Fragment, + nestedNameSpecifier(specifiesType(asString("struct a::A::B")), + has(nestedNameSpecifier( + specifiesNamespace(hasName("a"))))))); + EXPECT_TRUE(matches( + Fragment, + nestedNameSpecifier(specifiesType(asString("struct a::A")), + has(nestedNameSpecifier( + specifiesNamespace(hasName("a"))))))); + + // Not really useful because a NestedNameSpecifier can af at most one child, + // but to complete the interface. + EXPECT_TRUE(matchAndVerifyResultTrue( + Fragment, + nestedNameSpecifier(specifiesType(asString("struct a::A::B")), + forEach(nestedNameSpecifier().bind("x"))), + llvm::make_unique>("x", 1))); +} + +TEST(NNS, NestedNameSpecifiersAsDescendants) { + std::string Fragment = + "namespace a { struct A { struct B { struct C {}; }; }; };" + "void f() { a::A::B::C c; }"; + EXPECT_TRUE(matches( + Fragment, + decl(hasDescendant(nestedNameSpecifier(specifiesType( + asString("struct a::A"))))))); + EXPECT_TRUE(matchAndVerifyResultTrue( + Fragment, + functionDecl(hasName("f"), + forEachDescendant(nestedNameSpecifier().bind("x"))), + // Nested names: a, a::A and a::A::B. + llvm::make_unique>("x", 3))); +} + +TEST(NNSLoc, DescendantsOfNestedNameSpecifierLocs) { + std::string Fragment = + "namespace a { struct A { struct B { struct C {}; }; }; };" + "void f() { a::A::B::C c; }"; + EXPECT_TRUE(matches( + Fragment, + nestedNameSpecifierLoc(loc(specifiesType(asString("struct a::A::B"))), + hasDescendant(loc(nestedNameSpecifier( + specifiesNamespace(hasName("a")))))))); + EXPECT_TRUE(notMatches( + Fragment, + nestedNameSpecifierLoc(loc(specifiesType(asString("struct a::A::B"))), + has(loc(nestedNameSpecifier( + specifiesNamespace(hasName("a")))))))); + EXPECT_TRUE(matches( + Fragment, + nestedNameSpecifierLoc(loc(specifiesType(asString("struct a::A"))), + has(loc(nestedNameSpecifier( + specifiesNamespace(hasName("a")))))))); + + EXPECT_TRUE(matchAndVerifyResultTrue( + Fragment, + nestedNameSpecifierLoc(loc(specifiesType(asString("struct a::A::B"))), + forEach(nestedNameSpecifierLoc().bind("x"))), + llvm::make_unique>("x", 1))); +} + +TEST(NNSLoc, NestedNameSpecifierLocsAsDescendants) { + std::string Fragment = + "namespace a { struct A { struct B { struct C {}; }; }; };" + "void f() { a::A::B::C c; }"; + EXPECT_TRUE(matches( + Fragment, + decl(hasDescendant(loc(nestedNameSpecifier(specifiesType( + asString("struct a::A")))))))); + EXPECT_TRUE(matchAndVerifyResultTrue( + Fragment, + functionDecl(hasName("f"), + forEachDescendant(nestedNameSpecifierLoc().bind("x"))), + // Nested names: a, a::A and a::A::B. + llvm::make_unique>("x", 3))); +} +template class VerifyMatchOnNode : public BoundNodesCallback { +public: + VerifyMatchOnNode(StringRef Id, const internal::Matcher &InnerMatcher, + StringRef InnerId) + : Id(Id), InnerMatcher(InnerMatcher), InnerId(InnerId) { + } + + bool run(const BoundNodes *Nodes) override { return false; } + + bool run(const BoundNodes *Nodes, ASTContext *Context) override { + const T *Node = Nodes->getNodeAs(Id); + return selectFirst(InnerId, match(InnerMatcher, *Node, *Context)) != + nullptr; + } +private: + std::string Id; + internal::Matcher InnerMatcher; + std::string InnerId; +}; + +TEST(MatchFinder, CanMatchDeclarationsRecursively) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class X { class Y {}; };", recordDecl(hasName("::X")).bind("X"), + llvm::make_unique>( + "X", decl(hasDescendant(recordDecl(hasName("X::Y")).bind("Y"))), + "Y"))); + EXPECT_TRUE(matchAndVerifyResultFalse( + "class X { class Y {}; };", recordDecl(hasName("::X")).bind("X"), + llvm::make_unique>( + "X", decl(hasDescendant(recordDecl(hasName("X::Z")).bind("Z"))), + "Z"))); +} + +TEST(MatchFinder, CanMatchStatementsRecursively) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "void f() { if (1) { for (;;) { } } }", ifStmt().bind("if"), + llvm::make_unique>( + "if", stmt(hasDescendant(forStmt().bind("for"))), "for"))); + EXPECT_TRUE(matchAndVerifyResultFalse( + "void f() { if (1) { for (;;) { } } }", ifStmt().bind("if"), + llvm::make_unique>( + "if", stmt(hasDescendant(declStmt().bind("decl"))), "decl"))); +} + +TEST(MatchFinder, CanMatchSingleNodesRecursively) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class X { class Y {}; };", recordDecl(hasName("::X")).bind("X"), + llvm::make_unique>( + "X", recordDecl(has(recordDecl(hasName("X::Y")).bind("Y"))), "Y"))); + EXPECT_TRUE(matchAndVerifyResultFalse( + "class X { class Y {}; };", recordDecl(hasName("::X")).bind("X"), + llvm::make_unique>( + "X", recordDecl(has(recordDecl(hasName("X::Z")).bind("Z"))), "Z"))); +} + +TEST(StatementMatcher, HasReturnValue) { + StatementMatcher RetVal = returnStmt(hasReturnValue(binaryOperator())); + EXPECT_TRUE(matches("int F() { int a, b; return a + b; }", RetVal)); + EXPECT_FALSE(matches("int F() { int a; return a; }", RetVal)); + EXPECT_FALSE(matches("void F() { return; }", RetVal)); +} + +TEST(StatementMatcher, ForFunction) { + const auto CppString1 = + "struct PosVec {" + " PosVec& operator=(const PosVec&) {" + " auto x = [] { return 1; };" + " return *this;" + " }" + "};"; + const auto CppString2 = + "void F() {" + " struct S {" + " void F2() {" + " return;" + " }" + " };" + "}"; + EXPECT_TRUE( + matches( + CppString1, + returnStmt(forFunction(hasName("operator=")), + has(unaryOperator(hasOperatorName("*")))))); + EXPECT_TRUE( + notMatches( + CppString1, + returnStmt(forFunction(hasName("operator=")), + has(integerLiteral())))); + EXPECT_TRUE( + matches( + CppString1, + returnStmt(forFunction(hasName("operator()")), + has(integerLiteral())))); + EXPECT_TRUE(matches(CppString2, returnStmt(forFunction(hasName("F2"))))); + EXPECT_TRUE(notMatches(CppString2, returnStmt(forFunction(hasName("F"))))); +} + +} // namespace ast_matchers +} // namespace clang \ No newline at end of file Index: unittests/ASTMatchers/CMakeLists.txt =================================================================== --- unittests/ASTMatchers/CMakeLists.txt +++ unittests/ASTMatchers/CMakeLists.txt @@ -5,11 +5,17 @@ # By default MSVC has a 2^16 limit on the number of sections in an object file, # and this needs more than that. if (MSVC) - set_source_files_properties(ASTMatchersTest.cpp PROPERTIES COMPILE_FLAGS /bigobj) + set_source_files_properties(InternalASTMatchersTest.cpp PROPERTIES COMPILE_FLAGS /bigobj) + set_source_files_properties(NodeMatchersTest.cpp PROPERTIES COMPILE_FLAGS /bigobj) + set_source_files_properties(NarrowingMatchersTest.cpp PROPERTIES COMPILE_FLAGS /bigobj) + set_source_files_properties(ASTTraversalMatchersTest.cpp PROPERTIES COMPILE_FLAGS /bigobj) endif() add_clang_unittest(ASTMatchersTests - ASTMatchersTest.cpp) + InternalASTMatchersTest.cpp + NodeMatchersTest.cpp + NarrowingMatchersTest.cpp + ASTTraversalMatchersTest.cpp) target_link_libraries(ASTMatchersTests clangAST Index: unittests/ASTMatchers/InternalASTMatchersTest.cpp =================================================================== --- /dev/null +++ unittests/ASTMatchers/InternalASTMatchersTest.cpp @@ -0,0 +1,240 @@ +//===- unittest/Tooling/ASTMatchersTest.cpp - AST matcher unit tests ------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "ASTMatchersTest.h" +#include "clang/AST/PrettyPrinter.h" +#include "clang/ASTMatchers/ASTMatchFinder.h" +#include "clang/ASTMatchers/ASTMatchers.h" +#include "clang/Tooling/Tooling.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Support/Host.h" +#include "gtest/gtest.h" + +namespace clang { +namespace ast_matchers { + +#if GTEST_HAS_DEATH_TEST +TEST(HasNameDeathTest, DiesOnEmptyName) { + ASSERT_DEBUG_DEATH({ + DeclarationMatcher HasEmptyName = recordDecl(hasName("")); + EXPECT_TRUE(notMatches("class X {};", HasEmptyName)); + }, ""); +} + +TEST(HasNameDeathTest, DiesOnEmptyPattern) { + ASSERT_DEBUG_DEATH({ + DeclarationMatcher HasEmptyName = recordDecl(matchesName("")); + EXPECT_TRUE(notMatches("class X {};", HasEmptyName)); + }, ""); +} + +TEST(IsDerivedFromDeathTest, DiesOnEmptyBaseName) { + ASSERT_DEBUG_DEATH({ + DeclarationMatcher IsDerivedFromEmpty = cxxRecordDecl(isDerivedFrom("")); + EXPECT_TRUE(notMatches("class X {};", IsDerivedFromEmpty)); + }, ""); +} +#endif + +TEST(ConstructVariadic, MismatchedTypes_Regression) { + EXPECT_TRUE( + matches("const int a = 0;", + internal::DynTypedMatcher::constructVariadic( + internal::DynTypedMatcher::VO_AnyOf, + ast_type_traits::ASTNodeKind::getFromNodeKind(), + {isConstQualified(), arrayType()}) + .convertTo())); +} + +// For testing AST_MATCHER_P(). +AST_MATCHER_P(Decl, just, internal::Matcher, AMatcher) { + // Make sure all special variables are used: node, match_finder, + // bound_nodes_builder, and the parameter named 'AMatcher'. + return AMatcher.matches(Node, Finder, Builder); +} + +TEST(AstMatcherPMacro, Works) { + DeclarationMatcher HasClassB = just(has(recordDecl(hasName("B")).bind("b"))); + + EXPECT_TRUE(matchAndVerifyResultTrue("class A { class B {}; };", + HasClassB, llvm::make_unique>("b"))); + + EXPECT_TRUE(matchAndVerifyResultFalse("class A { class B {}; };", + HasClassB, llvm::make_unique>("a"))); + + EXPECT_TRUE(matchAndVerifyResultFalse("class A { class C {}; };", + HasClassB, llvm::make_unique>("b"))); +} + +AST_POLYMORPHIC_MATCHER_P(polymorphicHas, + AST_POLYMORPHIC_SUPPORTED_TYPES(Decl, Stmt), + internal::Matcher, AMatcher) { + return Finder->matchesChildOf( + Node, AMatcher, Builder, + ASTMatchFinder::TK_IgnoreImplicitCastsAndParentheses, + ASTMatchFinder::BK_First); +} + +TEST(AstPolymorphicMatcherPMacro, Works) { + DeclarationMatcher HasClassB = + polymorphicHas(recordDecl(hasName("B")).bind("b")); + + EXPECT_TRUE(matchAndVerifyResultTrue("class A { class B {}; };", + HasClassB, llvm::make_unique>("b"))); + + EXPECT_TRUE(matchAndVerifyResultFalse("class A { class B {}; };", + HasClassB, llvm::make_unique>("a"))); + + EXPECT_TRUE(matchAndVerifyResultFalse("class A { class C {}; };", + HasClassB, llvm::make_unique>("b"))); + + StatementMatcher StatementHasClassB = + polymorphicHas(recordDecl(hasName("B"))); + + EXPECT_TRUE(matches("void x() { class B {}; }", StatementHasClassB)); +} + +TEST(MatchFinder, CheckProfiling) { + MatchFinder::MatchFinderOptions Options; + llvm::StringMap Records; + Options.CheckProfiling.emplace(Records); + MatchFinder Finder(std::move(Options)); + + struct NamedCallback : public MatchFinder::MatchCallback { + void run(const MatchFinder::MatchResult &Result) override {} + StringRef getID() const override { return "MyID"; } + } Callback; + Finder.addMatcher(decl(), &Callback); + std::unique_ptr Factory( + newFrontendActionFactory(&Finder)); + ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), "int x;")); + + EXPECT_EQ(1u, Records.size()); + EXPECT_EQ("MyID", Records.begin()->getKey()); +} + +class VerifyStartOfTranslationUnit : public MatchFinder::MatchCallback { +public: + VerifyStartOfTranslationUnit() : Called(false) {} + void run(const MatchFinder::MatchResult &Result) override { + EXPECT_TRUE(Called); + } + void onStartOfTranslationUnit() override { Called = true; } + bool Called; +}; + +TEST(MatchFinder, InterceptsStartOfTranslationUnit) { + MatchFinder Finder; + VerifyStartOfTranslationUnit VerifyCallback; + Finder.addMatcher(decl(), &VerifyCallback); + std::unique_ptr Factory( + newFrontendActionFactory(&Finder)); + ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), "int x;")); + EXPECT_TRUE(VerifyCallback.Called); + + VerifyCallback.Called = false; + std::unique_ptr AST(tooling::buildASTFromCode("int x;")); + ASSERT_TRUE(AST.get()); + Finder.matchAST(AST->getASTContext()); + EXPECT_TRUE(VerifyCallback.Called); +} + +class VerifyEndOfTranslationUnit : public MatchFinder::MatchCallback { +public: + VerifyEndOfTranslationUnit() : Called(false) {} + void run(const MatchFinder::MatchResult &Result) override { + EXPECT_FALSE(Called); + } + void onEndOfTranslationUnit() override { Called = true; } + bool Called; +}; + +TEST(MatchFinder, InterceptsEndOfTranslationUnit) { + MatchFinder Finder; + VerifyEndOfTranslationUnit VerifyCallback; + Finder.addMatcher(decl(), &VerifyCallback); + std::unique_ptr Factory( + newFrontendActionFactory(&Finder)); + ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), "int x;")); + EXPECT_TRUE(VerifyCallback.Called); + + VerifyCallback.Called = false; + std::unique_ptr AST(tooling::buildASTFromCode("int x;")); + ASSERT_TRUE(AST.get()); + Finder.matchAST(AST->getASTContext()); + EXPECT_TRUE(VerifyCallback.Called); +} + +TEST(Matcher, matchOverEntireASTContext) { + std::unique_ptr AST = + clang::tooling::buildASTFromCode("struct { int *foo; };"); + ASSERT_TRUE(AST.get()); + auto PT = selectFirst( + "x", match(pointerType().bind("x"), AST->getASTContext())); + EXPECT_NE(nullptr, PT); +} + +TEST(IsInlineMatcher, IsInline) { + EXPECT_TRUE(matches("void g(); inline void f();", + functionDecl(isInline(), hasName("f")))); + EXPECT_TRUE(matches("namespace n { inline namespace m {} }", + namespaceDecl(isInline(), hasName("m")))); +} + +// FIXME: Figure out how to specify paths so the following tests pass on +// Windows. +#ifndef LLVM_ON_WIN32 + +TEST(Matcher, IsExpansionInMainFileMatcher) { + EXPECT_TRUE(matches("class X {};", + recordDecl(hasName("X"), isExpansionInMainFile()))); + EXPECT_TRUE(notMatches("", recordDecl(isExpansionInMainFile()))); + FileContentMappings M; + M.push_back(std::make_pair("/other", "class X {};")); + EXPECT_TRUE(matchesConditionally("#include \n", + recordDecl(isExpansionInMainFile()), false, + "-isystem/", M)); +} + +TEST(Matcher, IsExpansionInSystemHeader) { + FileContentMappings M; + M.push_back(std::make_pair("/other", "class X {};")); + EXPECT_TRUE(matchesConditionally( + "#include \"other\"\n", recordDecl(isExpansionInSystemHeader()), true, + "-isystem/", M)); + EXPECT_TRUE(matchesConditionally("#include \"other\"\n", + recordDecl(isExpansionInSystemHeader()), + false, "-I/", M)); + EXPECT_TRUE(notMatches("class X {};", + recordDecl(isExpansionInSystemHeader()))); + EXPECT_TRUE(notMatches("", recordDecl(isExpansionInSystemHeader()))); +} + +TEST(Matcher, IsExpansionInFileMatching) { + FileContentMappings M; + M.push_back(std::make_pair("/foo", "class A {};")); + M.push_back(std::make_pair("/bar", "class B {};")); + EXPECT_TRUE(matchesConditionally( + "#include \n" + "#include \n" + "class X {};", + recordDecl(isExpansionInFileMatching("b.*"), hasName("B")), true, + "-isystem/", M)); + EXPECT_TRUE(matchesConditionally( + "#include \n" + "#include \n" + "class X {};", + recordDecl(isExpansionInFileMatching("f.*"), hasName("X")), false, + "-isystem/", M)); +} + +#endif // LLVM_ON_WIN32 + +} // end namespace ast_matchers +} // end namespace clang Index: unittests/ASTMatchers/NarrowingMatchersTest.cpp =================================================================== --- /dev/null +++ unittests/ASTMatchers/NarrowingMatchersTest.cpp @@ -0,0 +1,1867 @@ +//===- unittest/Tooling/NarrowingMatchersTest.cpp - AST matcher unit tests ===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "ASTMatchersTest.h" +#include "clang/AST/PrettyPrinter.h" +#include "clang/ASTMatchers/ASTMatchFinder.h" +#include "clang/ASTMatchers/ASTMatchers.h" +#include "clang/Tooling/Tooling.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Support/Host.h" +#include "gtest/gtest.h" + +namespace clang { +namespace ast_matchers { + + +TEST(AllOf, AllOverloadsWork) { + const char Program[] = + "struct T { };" + "int f(int, T*, int, int);" + "void g(int x) { T t; f(x, &t, 3, 4); }"; + EXPECT_TRUE(matches(Program, + callExpr(allOf(callee(functionDecl(hasName("f"))), + hasArgument(0, declRefExpr(to(varDecl()))))))); + EXPECT_TRUE(matches(Program, + callExpr(allOf(callee(functionDecl(hasName("f"))), + hasArgument(0, declRefExpr(to(varDecl()))), + hasArgument(1, hasType(pointsTo( + recordDecl(hasName("T"))))))))); + EXPECT_TRUE(matches(Program, + callExpr(allOf(callee(functionDecl(hasName("f"))), + hasArgument(0, declRefExpr(to(varDecl()))), + hasArgument(1, hasType(pointsTo( + recordDecl(hasName("T"))))), + hasArgument(2, integerLiteral(equals(3))))))); + EXPECT_TRUE(matches(Program, + callExpr(allOf(callee(functionDecl(hasName("f"))), + hasArgument(0, declRefExpr(to(varDecl()))), + hasArgument(1, hasType(pointsTo( + recordDecl(hasName("T"))))), + hasArgument(2, integerLiteral(equals(3))), + hasArgument(3, integerLiteral(equals(4))))))); +} + +TEST(DeclarationMatcher, MatchHas) { + DeclarationMatcher HasClassX = recordDecl(has(recordDecl(hasName("X")))); + EXPECT_TRUE(matches("class Y { class X {}; };", HasClassX)); + EXPECT_TRUE(matches("class X {};", HasClassX)); + + DeclarationMatcher YHasClassX = + recordDecl(hasName("Y"), has(recordDecl(hasName("X")))); + EXPECT_TRUE(matches("class Y { class X {}; };", YHasClassX)); + EXPECT_TRUE(notMatches("class X {};", YHasClassX)); + EXPECT_TRUE( + notMatches("class Y { class Z { class X {}; }; };", YHasClassX)); +} + +TEST(DeclarationMatcher, MatchHasRecursiveAllOf) { + DeclarationMatcher Recursive = + recordDecl( + has(recordDecl( + has(recordDecl(hasName("X"))), + has(recordDecl(hasName("Y"))), + hasName("Z"))), + has(recordDecl( + has(recordDecl(hasName("A"))), + has(recordDecl(hasName("B"))), + hasName("C"))), + hasName("F")); + + EXPECT_TRUE(matches( + "class F {" + " class Z {" + " class X {};" + " class Y {};" + " };" + " class C {" + " class A {};" + " class B {};" + " };" + "};", Recursive)); + + EXPECT_TRUE(matches( + "class F {" + " class Z {" + " class A {};" + " class X {};" + " class Y {};" + " };" + " class C {" + " class X {};" + " class A {};" + " class B {};" + " };" + "};", Recursive)); + + EXPECT_TRUE(matches( + "class O1 {" + " class O2 {" + " class F {" + " class Z {" + " class A {};" + " class X {};" + " class Y {};" + " };" + " class C {" + " class X {};" + " class A {};" + " class B {};" + " };" + " };" + " };" + "};", Recursive)); +} + +TEST(DeclarationMatcher, MatchHasRecursiveAnyOf) { + DeclarationMatcher Recursive = + recordDecl( + anyOf( + has(recordDecl( + anyOf( + has(recordDecl( + hasName("X"))), + has(recordDecl( + hasName("Y"))), + hasName("Z")))), + has(recordDecl( + anyOf( + hasName("C"), + has(recordDecl( + hasName("A"))), + has(recordDecl( + hasName("B")))))), + hasName("F"))); + + EXPECT_TRUE(matches("class F {};", Recursive)); + EXPECT_TRUE(matches("class Z {};", Recursive)); + EXPECT_TRUE(matches("class C {};", Recursive)); + EXPECT_TRUE(matches("class M { class N { class X {}; }; };", Recursive)); + EXPECT_TRUE(matches("class M { class N { class B {}; }; };", Recursive)); + EXPECT_TRUE( + matches("class O1 { class O2 {" + " class M { class N { class B {}; }; }; " + "}; };", Recursive)); +} + +TEST(DeclarationMatcher, MatchNot) { + DeclarationMatcher NotClassX = + cxxRecordDecl( + isDerivedFrom("Y"), + unless(hasName("X"))); + EXPECT_TRUE(notMatches("", NotClassX)); + EXPECT_TRUE(notMatches("class Y {};", NotClassX)); + EXPECT_TRUE(matches("class Y {}; class Z : public Y {};", NotClassX)); + EXPECT_TRUE(notMatches("class Y {}; class X : public Y {};", NotClassX)); + EXPECT_TRUE( + notMatches("class Y {}; class Z {}; class X : public Y {};", + NotClassX)); + + DeclarationMatcher ClassXHasNotClassY = + recordDecl( + hasName("X"), + has(recordDecl(hasName("Z"))), + unless( + has(recordDecl(hasName("Y"))))); + EXPECT_TRUE(matches("class X { class Z {}; };", ClassXHasNotClassY)); + EXPECT_TRUE(notMatches("class X { class Y {}; class Z {}; };", + ClassXHasNotClassY)); + + DeclarationMatcher NamedNotRecord = + namedDecl(hasName("Foo"), unless(recordDecl())); + EXPECT_TRUE(matches("void Foo(){}", NamedNotRecord)); + EXPECT_TRUE(notMatches("struct Foo {};", NamedNotRecord)); +} + +TEST(DeclarationMatcher, HasDescendant) { + DeclarationMatcher ZDescendantClassX = + recordDecl( + hasDescendant(recordDecl(hasName("X"))), + hasName("Z")); + EXPECT_TRUE(matches("class Z { class X {}; };", ZDescendantClassX)); + EXPECT_TRUE( + matches("class Z { class Y { class X {}; }; };", ZDescendantClassX)); + EXPECT_TRUE( + matches("class Z { class A { class Y { class X {}; }; }; };", + ZDescendantClassX)); + EXPECT_TRUE( + matches("class Z { class A { class B { class Y { class X {}; }; }; }; };", + ZDescendantClassX)); + EXPECT_TRUE(notMatches("class Z {};", ZDescendantClassX)); + + DeclarationMatcher ZDescendantClassXHasClassY = + recordDecl( + hasDescendant(recordDecl(has(recordDecl(hasName("Y"))), + hasName("X"))), + hasName("Z")); + EXPECT_TRUE(matches("class Z { class X { class Y {}; }; };", + ZDescendantClassXHasClassY)); + EXPECT_TRUE( + matches("class Z { class A { class B { class X { class Y {}; }; }; }; };", + ZDescendantClassXHasClassY)); + EXPECT_TRUE(notMatches( + "class Z {" + " class A {" + " class B {" + " class X {" + " class C {" + " class Y {};" + " };" + " };" + " }; " + " };" + "};", ZDescendantClassXHasClassY)); + + DeclarationMatcher ZDescendantClassXDescendantClassY = + recordDecl( + hasDescendant(recordDecl(hasDescendant(recordDecl(hasName("Y"))), + hasName("X"))), + hasName("Z")); + EXPECT_TRUE( + matches("class Z { class A { class X { class B { class Y {}; }; }; }; };", + ZDescendantClassXDescendantClassY)); + EXPECT_TRUE(matches( + "class Z {" + " class A {" + " class X {" + " class B {" + " class Y {};" + " };" + " class Y {};" + " };" + " };" + "};", ZDescendantClassXDescendantClassY)); +} + +TEST(DeclarationMatcher, HasDescendantMemoization) { + DeclarationMatcher CannotMemoize = + decl(hasDescendant(typeLoc().bind("x")), has(decl())); + EXPECT_TRUE(matches("void f() { int i; }", CannotMemoize)); +} + +TEST(DeclarationMatcher, HasDescendantMemoizationUsesRestrictKind) { + auto Name = hasName("i"); + auto VD = internal::Matcher(Name).dynCastTo(); + auto RD = internal::Matcher(Name).dynCastTo(); + // Matching VD first should not make a cache hit for RD. + EXPECT_TRUE(notMatches("void f() { int i; }", + decl(hasDescendant(VD), hasDescendant(RD)))); + EXPECT_TRUE(notMatches("void f() { int i; }", + decl(hasDescendant(RD), hasDescendant(VD)))); + // Not matching RD first should not make a cache hit for VD either. + EXPECT_TRUE(matches("void f() { int i; }", + decl(anyOf(hasDescendant(RD), hasDescendant(VD))))); +} + +TEST(DeclarationMatcher, HasAncestorMemoization) { + // This triggers an hasAncestor with a TemplateArgument in the bound nodes. + // That node can't be memoized so we have to check for it before trying to put + // it on the cache. + DeclarationMatcher CannotMemoize = classTemplateSpecializationDecl( + hasAnyTemplateArgument(templateArgument().bind("targ")), + forEach(fieldDecl(hasAncestor(forStmt())))); + + EXPECT_TRUE(notMatches("template struct S;" + "template <> struct S{ int i; int j; };", + CannotMemoize)); +} + +TEST(DeclarationMatcher, HasAttr) { + EXPECT_TRUE(matches("struct __attribute__((warn_unused)) X {};", + decl(hasAttr(clang::attr::WarnUnused)))); + EXPECT_FALSE(matches("struct X {};", + decl(hasAttr(clang::attr::WarnUnused)))); +} + + +TEST(DeclarationMatcher, MatchAnyOf) { + DeclarationMatcher YOrZDerivedFromX = cxxRecordDecl( + anyOf(hasName("Y"), allOf(isDerivedFrom("X"), hasName("Z")))); + EXPECT_TRUE(matches("class X {}; class Z : public X {};", YOrZDerivedFromX)); + EXPECT_TRUE(matches("class Y {};", YOrZDerivedFromX)); + EXPECT_TRUE( + notMatches("class X {}; class W : public X {};", YOrZDerivedFromX)); + EXPECT_TRUE(notMatches("class Z {};", YOrZDerivedFromX)); + + DeclarationMatcher XOrYOrZOrU = + recordDecl(anyOf(hasName("X"), hasName("Y"), hasName("Z"), hasName("U"))); + EXPECT_TRUE(matches("class X {};", XOrYOrZOrU)); + EXPECT_TRUE(notMatches("class V {};", XOrYOrZOrU)); + + DeclarationMatcher XOrYOrZOrUOrV = + recordDecl(anyOf(hasName("X"), hasName("Y"), hasName("Z"), hasName("U"), + hasName("V"))); + EXPECT_TRUE(matches("class X {};", XOrYOrZOrUOrV)); + EXPECT_TRUE(matches("class Y {};", XOrYOrZOrUOrV)); + EXPECT_TRUE(matches("class Z {};", XOrYOrZOrUOrV)); + EXPECT_TRUE(matches("class U {};", XOrYOrZOrUOrV)); + EXPECT_TRUE(matches("class V {};", XOrYOrZOrUOrV)); + EXPECT_TRUE(notMatches("class A {};", XOrYOrZOrUOrV)); + + StatementMatcher MixedTypes = stmt(anyOf(ifStmt(), binaryOperator())); + EXPECT_TRUE(matches("int F() { return 1 + 2; }", MixedTypes)); + EXPECT_TRUE(matches("int F() { if (true) return 1; }", MixedTypes)); + EXPECT_TRUE(notMatches("int F() { return 1; }", MixedTypes)); + + EXPECT_TRUE( + matches("void f() try { } catch (int) { } catch (...) { }", + cxxCatchStmt(anyOf(hasDescendant(varDecl()), isCatchAll())))); +} + + + + +TEST(DeclarationMatcher, ClassIsDerived) { + DeclarationMatcher IsDerivedFromX = cxxRecordDecl(isDerivedFrom("X")); + + EXPECT_TRUE(matches("class X {}; class Y : public X {};", IsDerivedFromX)); + EXPECT_TRUE(notMatches("class X {};", IsDerivedFromX)); + EXPECT_TRUE(notMatches("class X;", IsDerivedFromX)); + EXPECT_TRUE(notMatches("class Y;", IsDerivedFromX)); + EXPECT_TRUE(notMatches("", IsDerivedFromX)); + + DeclarationMatcher IsAX = cxxRecordDecl(isSameOrDerivedFrom("X")); + + EXPECT_TRUE(matches("class X {}; class Y : public X {};", IsAX)); + EXPECT_TRUE(matches("class X {};", IsAX)); + EXPECT_TRUE(matches("class X;", IsAX)); + EXPECT_TRUE(notMatches("class Y;", IsAX)); + EXPECT_TRUE(notMatches("", IsAX)); + + DeclarationMatcher ZIsDerivedFromX = + cxxRecordDecl(hasName("Z"), isDerivedFrom("X")); + EXPECT_TRUE( + matches("class X {}; class Y : public X {}; class Z : public Y {};", + ZIsDerivedFromX)); + EXPECT_TRUE( + matches("class X {};" + "template class Y : public X {};" + "class Z : public Y {};", ZIsDerivedFromX)); + EXPECT_TRUE(matches("class X {}; template class Z : public X {};", + ZIsDerivedFromX)); + EXPECT_TRUE( + matches("template class X {}; " + "template class Z : public X {};", + ZIsDerivedFromX)); + EXPECT_TRUE( + matches("template class X {}; " + "template class Z : public X {};", + ZIsDerivedFromX)); + EXPECT_TRUE( + notMatches("template class A { class Z : public X {}; };", + ZIsDerivedFromX)); + EXPECT_TRUE( + matches("template class A { public: class Z : public X {}; }; " + "class X{}; void y() { A::Z z; }", ZIsDerivedFromX)); + EXPECT_TRUE( + matches("template class X {}; " + "template class A { class Z : public X {}; };", + ZIsDerivedFromX)); + EXPECT_TRUE( + notMatches("template class X> class A { " + " class Z : public X {}; };", ZIsDerivedFromX)); + EXPECT_TRUE( + matches("template class X> class A { " + " public: class Z : public X {}; }; " + "template class X {}; void y() { A::Z z; }", + ZIsDerivedFromX)); + EXPECT_TRUE( + notMatches("template class A { class Z : public X::D {}; };", + ZIsDerivedFromX)); + EXPECT_TRUE( + matches("template class A { public: " + " class Z : public X::D {}; }; " + "class Y { public: class X {}; typedef X D; }; " + "void y() { A::Z z; }", ZIsDerivedFromX)); + EXPECT_TRUE( + matches("class X {}; typedef X Y; class Z : public Y {};", + ZIsDerivedFromX)); + EXPECT_TRUE( + matches("template class Y { typedef typename T::U X; " + " class Z : public X {}; };", ZIsDerivedFromX)); + EXPECT_TRUE(matches("class X {}; class Z : public ::X {};", + ZIsDerivedFromX)); + EXPECT_TRUE( + notMatches("template class X {}; " + "template class A { class Z : public X::D {}; };", + ZIsDerivedFromX)); + EXPECT_TRUE( + matches("template class X { public: typedef X D; }; " + "template class A { public: " + " class Z : public X::D {}; }; void y() { A::Z z; }", + ZIsDerivedFromX)); + EXPECT_TRUE( + notMatches("template class A { class Z : public X::D::E {}; };", + ZIsDerivedFromX)); + EXPECT_TRUE( + matches("class X {}; typedef X V; typedef V W; class Z : public W {};", + ZIsDerivedFromX)); + EXPECT_TRUE( + matches("class X {}; class Y : public X {}; " + "typedef Y V; typedef V W; class Z : public W {};", + ZIsDerivedFromX)); + EXPECT_TRUE( + matches("template class X {}; " + "template class A { class Z : public X {}; };", + ZIsDerivedFromX)); + EXPECT_TRUE( + notMatches("template class D { typedef X A; typedef A B; " + " typedef B C; class Z : public C {}; };", + ZIsDerivedFromX)); + EXPECT_TRUE( + matches("class X {}; typedef X A; typedef A B; " + "class Z : public B {};", ZIsDerivedFromX)); + EXPECT_TRUE( + matches("class X {}; typedef X A; typedef A B; typedef B C; " + "class Z : public C {};", ZIsDerivedFromX)); + EXPECT_TRUE( + matches("class U {}; typedef U X; typedef X V; " + "class Z : public V {};", ZIsDerivedFromX)); + EXPECT_TRUE( + matches("class Base {}; typedef Base X; " + "class Z : public Base {};", ZIsDerivedFromX)); + EXPECT_TRUE( + matches("class Base {}; typedef Base Base2; typedef Base2 X; " + "class Z : public Base {};", ZIsDerivedFromX)); + EXPECT_TRUE( + notMatches("class Base {}; class Base2 {}; typedef Base2 X; " + "class Z : public Base {};", ZIsDerivedFromX)); + EXPECT_TRUE( + matches("class A {}; typedef A X; typedef A Y; " + "class Z : public Y {};", ZIsDerivedFromX)); + EXPECT_TRUE( + notMatches("template class Z;" + "template <> class Z {};" + "template class Z : public Z {};", + IsDerivedFromX)); + EXPECT_TRUE( + matches("template class X;" + "template <> class X {};" + "template class X : public X {};", + IsDerivedFromX)); + EXPECT_TRUE(matches( + "class X {};" + "template class Z;" + "template <> class Z {};" + "template class Z : public Z, public X {};", + ZIsDerivedFromX)); + EXPECT_TRUE( + notMatches("template struct X;" + "template struct X : public X {};", + cxxRecordDecl(isDerivedFrom(recordDecl(hasName("Some")))))); + EXPECT_TRUE(matches( + "struct A {};" + "template struct X;" + "template struct X : public X {};" + "template<> struct X<0> : public A {};" + "struct B : public X<42> {};", + cxxRecordDecl(hasName("B"), isDerivedFrom(recordDecl(hasName("A")))))); + + // FIXME: Once we have better matchers for template type matching, + // get rid of the Variable(...) matching and match the right template + // declarations directly. + const char *RecursiveTemplateOneParameter = + "class Base1 {}; class Base2 {};" + "template class Z;" + "template <> class Z : public Base1 {};" + "template <> class Z : public Base2 {};" + "template <> class Z : public Z {};" + "template <> class Z : public Z {};" + "template class Z : public Z, public Z {};" + "void f() { Z z_float; Z z_double; Z z_char; }"; + EXPECT_TRUE(matches( + RecursiveTemplateOneParameter, + varDecl(hasName("z_float"), + hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1"))))))); + EXPECT_TRUE(notMatches( + RecursiveTemplateOneParameter, + varDecl(hasName("z_float"), + hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base2"))))))); + EXPECT_TRUE(matches( + RecursiveTemplateOneParameter, + varDecl(hasName("z_char"), + hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1"), + isDerivedFrom("Base2"))))))); + + const char *RecursiveTemplateTwoParameters = + "class Base1 {}; class Base2 {};" + "template class Z;" + "template class Z : public Base1 {};" + "template class Z : public Base2 {};" + "template class Z : public Z {};" + "template class Z : public Z {};" + "template class Z : " + " public Z, public Z {};" + "void f() { Z z_float; Z z_double; " + " Z z_char; }"; + EXPECT_TRUE(matches( + RecursiveTemplateTwoParameters, + varDecl(hasName("z_float"), + hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1"))))))); + EXPECT_TRUE(notMatches( + RecursiveTemplateTwoParameters, + varDecl(hasName("z_float"), + hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base2"))))))); + EXPECT_TRUE(matches( + RecursiveTemplateTwoParameters, + varDecl(hasName("z_char"), + hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1"), + isDerivedFrom("Base2"))))))); + EXPECT_TRUE(matches( + "namespace ns { class X {}; class Y : public X {}; }", + cxxRecordDecl(isDerivedFrom("::ns::X")))); + EXPECT_TRUE(notMatches( + "class X {}; class Y : public X {};", + cxxRecordDecl(isDerivedFrom("::ns::X")))); + + EXPECT_TRUE(matches( + "class X {}; class Y : public X {};", + cxxRecordDecl(isDerivedFrom(recordDecl(hasName("X")).bind("test"))))); + + EXPECT_TRUE(matches( + "template class X {};" + "template using Z = X;" + "template class Y : Z {};", + cxxRecordDecl(isDerivedFrom(namedDecl(hasName("X")))))); +} + +TEST(Matcher, BindMatchedNodes) { + DeclarationMatcher ClassX = has(recordDecl(hasName("::X")).bind("x")); + + EXPECT_TRUE(matchAndVerifyResultTrue("class X {};", + ClassX, llvm::make_unique>("x"))); + + EXPECT_TRUE(matchAndVerifyResultFalse("class X {};", + ClassX, llvm::make_unique>("other-id"))); + + TypeMatcher TypeAHasClassB = hasDeclaration( + recordDecl(hasName("A"), has(recordDecl(hasName("B")).bind("b")))); + + EXPECT_TRUE(matchAndVerifyResultTrue("class A { public: A *a; class B {}; };", + TypeAHasClassB, + llvm::make_unique>("b"))); + + StatementMatcher MethodX = + callExpr(callee(cxxMethodDecl(hasName("x")))).bind("x"); + + EXPECT_TRUE(matchAndVerifyResultTrue("class A { void x() { x(); } };", + MethodX, + llvm::make_unique>("x"))); +} + +TEST(Matcher, BindTheSameNameInAlternatives) { + StatementMatcher matcher = anyOf( + binaryOperator(hasOperatorName("+"), + hasLHS(expr().bind("x")), + hasRHS(integerLiteral(equals(0)))), + binaryOperator(hasOperatorName("+"), + hasLHS(integerLiteral(equals(0))), + hasRHS(expr().bind("x")))); + + EXPECT_TRUE(matchAndVerifyResultTrue( + // The first branch of the matcher binds x to 0 but then fails. + // The second branch binds x to f() and succeeds. + "int f() { return 0 + f(); }", + matcher, + llvm::make_unique>("x"))); +} + +TEST(Matcher, BindsIDForMemoizedResults) { + // Using the same matcher in two match expressions will make memoization + // kick in. + DeclarationMatcher ClassX = recordDecl(hasName("X")).bind("x"); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A { class B { class X {}; }; };", + DeclarationMatcher(anyOf( + recordDecl(hasName("A"), hasDescendant(ClassX)), + recordDecl(hasName("B"), hasDescendant(ClassX)))), + llvm::make_unique>("x", 2))); +} + +TEST(HasType, MatchesAsString) { + EXPECT_TRUE( + matches("class Y { public: void x(); }; void z() {Y* y; y->x(); }", + cxxMemberCallExpr(on(hasType(asString("class Y *")))))); + EXPECT_TRUE( + matches("class X { void x(int x) {} };", + cxxMethodDecl(hasParameter(0, hasType(asString("int")))))); + EXPECT_TRUE(matches("namespace ns { struct A {}; } struct B { ns::A a; };", + fieldDecl(hasType(asString("ns::A"))))); + EXPECT_TRUE(matches("namespace { struct A {}; } struct B { A a; };", + fieldDecl(hasType(asString("struct (anonymous namespace)::A"))))); +} + +TEST(Matcher, HasOperatorNameForOverloadedOperatorCall) { + StatementMatcher OpCallAndAnd = + cxxOperatorCallExpr(hasOverloadedOperatorName("&&")); + EXPECT_TRUE(matches("class Y { }; " + "bool operator&&(Y x, Y y) { return true; }; " + "Y a; Y b; bool c = a && b;", OpCallAndAnd)); + StatementMatcher OpCallLessLess = + cxxOperatorCallExpr(hasOverloadedOperatorName("<<")); + EXPECT_TRUE(notMatches("class Y { }; " + "bool operator&&(Y x, Y y) { return true; }; " + "Y a; Y b; bool c = a && b;", + OpCallLessLess)); + StatementMatcher OpStarCall = + cxxOperatorCallExpr(hasOverloadedOperatorName("*")); + EXPECT_TRUE(matches("class Y; int operator*(Y &); void f(Y &y) { *y; }", + OpStarCall)); + DeclarationMatcher ClassWithOpStar = + cxxRecordDecl(hasMethod(hasOverloadedOperatorName("*"))); + EXPECT_TRUE(matches("class Y { int operator*(); };", + ClassWithOpStar)); + EXPECT_TRUE(notMatches("class Y { void myOperator(); };", + ClassWithOpStar)) ; + DeclarationMatcher AnyOpStar = functionDecl(hasOverloadedOperatorName("*")); + EXPECT_TRUE(matches("class Y; int operator*(Y &);", AnyOpStar)); + EXPECT_TRUE(matches("class Y { int operator*(); };", AnyOpStar)); +} + + +TEST(Matcher, NestedOverloadedOperatorCalls) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class Y { }; " + "Y& operator&&(Y& x, Y& y) { return x; }; " + "Y a; Y b; Y c; Y d = a && b && c;", + cxxOperatorCallExpr(hasOverloadedOperatorName("&&")).bind("x"), + llvm::make_unique>("x", 2))); + EXPECT_TRUE(matches("class Y { }; " + "Y& operator&&(Y& x, Y& y) { return x; }; " + "Y a; Y b; Y c; Y d = a && b && c;", + cxxOperatorCallExpr(hasParent(cxxOperatorCallExpr())))); + EXPECT_TRUE( + matches("class Y { }; " + "Y& operator&&(Y& x, Y& y) { return x; }; " + "Y a; Y b; Y c; Y d = a && b && c;", + cxxOperatorCallExpr(hasDescendant(cxxOperatorCallExpr())))); +} + +TEST(Matcher, VarDecl_Storage) { + auto M = varDecl(hasName("X"), hasLocalStorage()); + EXPECT_TRUE(matches("void f() { int X; }", M)); + EXPECT_TRUE(notMatches("int X;", M)); + EXPECT_TRUE(notMatches("void f() { static int X; }", M)); + + M = varDecl(hasName("X"), hasGlobalStorage()); + EXPECT_TRUE(notMatches("void f() { int X; }", M)); + EXPECT_TRUE(matches("int X;", M)); + EXPECT_TRUE(matches("void f() { static int X; }", M)); +} + +TEST(Matcher, VarDecl_StorageDuration) { + std::string T = + "void f() { int x; static int y; } int a;"; + + EXPECT_TRUE(matches(T, varDecl(hasName("x"), hasAutomaticStorageDuration()))); + EXPECT_TRUE( + notMatches(T, varDecl(hasName("y"), hasAutomaticStorageDuration()))); + EXPECT_TRUE( + notMatches(T, varDecl(hasName("a"), hasAutomaticStorageDuration()))); + + EXPECT_TRUE(matches(T, varDecl(hasName("y"), hasStaticStorageDuration()))); + EXPECT_TRUE(matches(T, varDecl(hasName("a"), hasStaticStorageDuration()))); + EXPECT_TRUE(notMatches(T, varDecl(hasName("x"), hasStaticStorageDuration()))); + + // FIXME: It is really hard to test with thread_local itself because not all + // targets support TLS, which causes this to be an error depending on what + // platform the test is being run on. We do not have access to the TargetInfo + // object to be able to test whether the platform supports TLS or not. + EXPECT_TRUE(notMatches(T, varDecl(hasName("x"), hasThreadStorageDuration()))); + EXPECT_TRUE(notMatches(T, varDecl(hasName("y"), hasThreadStorageDuration()))); + EXPECT_TRUE(notMatches(T, varDecl(hasName("a"), hasThreadStorageDuration()))); +} + +TEST(Matcher, FindsVarDeclInFunctionParameter) { + EXPECT_TRUE(matches( + "void f(int i) {}", + varDecl(hasName("i")))); +} + +TEST(UnaryExpressionOrTypeTraitExpression, MatchesCorrectType) { + EXPECT_TRUE(matches("void x() { int a = sizeof(a); }", sizeOfExpr( + hasArgumentOfType(asString("int"))))); + EXPECT_TRUE(notMatches("void x() { int a = sizeof(a); }", sizeOfExpr( + hasArgumentOfType(asString("float"))))); + EXPECT_TRUE(matches( + "struct A {}; void x() { A a; int b = sizeof(a); }", + sizeOfExpr(hasArgumentOfType(hasDeclaration(recordDecl(hasName("A"))))))); + EXPECT_TRUE(notMatches("void x() { int a = sizeof(a); }", sizeOfExpr( + hasArgumentOfType(hasDeclaration(recordDecl(hasName("string"))))))); +} + +TEST(IsInteger, MatchesIntegers) { + EXPECT_TRUE(matches("int i = 0;", varDecl(hasType(isInteger())))); + EXPECT_TRUE(matches( + "long long i = 0; void f(long long) { }; void g() {f(i);}", + callExpr(hasArgument(0, declRefExpr( + to(varDecl(hasType(isInteger())))))))); +} + +TEST(IsInteger, ReportsNoFalsePositives) { + EXPECT_TRUE(notMatches("int *i;", varDecl(hasType(isInteger())))); + EXPECT_TRUE(notMatches("struct T {}; T t; void f(T *) { }; void g() {f(&t);}", + callExpr(hasArgument(0, declRefExpr( + to(varDecl(hasType(isInteger())))))))); +} + +TEST(IsAnyPointer, MatchesPointers) { + EXPECT_TRUE(matches("int* i = nullptr;", varDecl(hasType(isAnyPointer())))); +} + +TEST(IsAnyPointer, MatchesObjcPointer) { + EXPECT_TRUE(matchesObjC("@interface Foo @end Foo *f;", + varDecl(hasType(isAnyPointer())))); +} + +TEST(IsAnyPointer, ReportsNoFalsePositives) { + EXPECT_TRUE(notMatches("int i = 0;", varDecl(hasType(isAnyPointer())))); +} + +TEST(IsAnyCharacter, MatchesCharacters) { + EXPECT_TRUE(matches("char i = 0;", varDecl(hasType(isAnyCharacter())))); +} + +TEST(IsAnyCharacter, ReportsNoFalsePositives) { + EXPECT_TRUE(notMatches("int i;", varDecl(hasType(isAnyCharacter())))); +} + +TEST(IsArrow, MatchesMemberVariablesViaArrow) { + EXPECT_TRUE(matches("class Y { void x() { this->y; } int y; };", + memberExpr(isArrow()))); + EXPECT_TRUE(matches("class Y { void x() { y; } int y; };", + memberExpr(isArrow()))); + EXPECT_TRUE(notMatches("class Y { void x() { (*this).y; } int y; };", + memberExpr(isArrow()))); +} + +TEST(IsArrow, MatchesStaticMemberVariablesViaArrow) { + EXPECT_TRUE(matches("class Y { void x() { this->y; } static int y; };", + memberExpr(isArrow()))); + EXPECT_TRUE(notMatches("class Y { void x() { y; } static int y; };", + memberExpr(isArrow()))); + EXPECT_TRUE(notMatches("class Y { void x() { (*this).y; } static int y; };", + memberExpr(isArrow()))); +} + +TEST(IsArrow, MatchesMemberCallsViaArrow) { + EXPECT_TRUE(matches("class Y { void x() { this->x(); } };", + memberExpr(isArrow()))); + EXPECT_TRUE(matches("class Y { void x() { x(); } };", + memberExpr(isArrow()))); + EXPECT_TRUE(notMatches("class Y { void x() { Y y; y.x(); } };", + memberExpr(isArrow()))); +} + +TEST(ConversionDeclaration, IsExplicit) { + EXPECT_TRUE(matches("struct S { explicit operator int(); };", + cxxConversionDecl(isExplicit()))); + EXPECT_TRUE(notMatches("struct S { operator int(); };", + cxxConversionDecl(isExplicit()))); +} + +TEST(Matcher, ArgumentCount) { + StatementMatcher Call1Arg = callExpr(argumentCountIs(1)); + + EXPECT_TRUE(matches("void x(int) { x(0); }", Call1Arg)); + EXPECT_TRUE(matches("class X { void x(int) { x(0); } };", Call1Arg)); + EXPECT_TRUE(notMatches("void x(int, int) { x(0, 0); }", Call1Arg)); +} + +TEST(Matcher, ParameterCount) { + DeclarationMatcher Function1Arg = functionDecl(parameterCountIs(1)); + EXPECT_TRUE(matches("void f(int i) {}", Function1Arg)); + EXPECT_TRUE(matches("class X { void f(int i) {} };", Function1Arg)); + EXPECT_TRUE(notMatches("void f() {}", Function1Arg)); + EXPECT_TRUE(notMatches("void f(int i, int j, int k) {}", Function1Arg)); + EXPECT_TRUE(matches("void f(int i, ...) {};", Function1Arg)); +} + +TEST(Matcher, References) { + DeclarationMatcher ReferenceClassX = varDecl( + hasType(references(recordDecl(hasName("X"))))); + EXPECT_TRUE(matches("class X {}; void y(X y) { X &x = y; }", + ReferenceClassX)); + EXPECT_TRUE( + matches("class X {}; void y(X y) { const X &x = y; }", ReferenceClassX)); + // The match here is on the implicit copy constructor code for + // class X, not on code 'X x = y'. + EXPECT_TRUE( + matches("class X {}; void y(X y) { X x = y; }", ReferenceClassX)); + EXPECT_TRUE( + notMatches("class X {}; extern X x;", ReferenceClassX)); + EXPECT_TRUE( + notMatches("class X {}; void y(X *y) { X *&x = y; }", ReferenceClassX)); +} + +TEST(QualType, hasLocalQualifiers) { + EXPECT_TRUE(notMatches("typedef const int const_int; const_int i = 1;", + varDecl(hasType(hasLocalQualifiers())))); + EXPECT_TRUE(matches("int *const j = nullptr;", + varDecl(hasType(hasLocalQualifiers())))); + EXPECT_TRUE(matches("int *volatile k;", + varDecl(hasType(hasLocalQualifiers())))); + EXPECT_TRUE(notMatches("int m;", + varDecl(hasType(hasLocalQualifiers())))); +} + +TEST(IsExternC, MatchesExternCFunctionDeclarations) { + EXPECT_TRUE(matches("extern \"C\" void f() {}", functionDecl(isExternC()))); + EXPECT_TRUE(matches("extern \"C\" { void f() {} }", + functionDecl(isExternC()))); + EXPECT_TRUE(notMatches("void f() {}", functionDecl(isExternC()))); +} + +TEST(IsDefaulted, MatchesDefaultedFunctionDeclarations) { + EXPECT_TRUE(notMatches("class A { ~A(); };", + functionDecl(hasName("~A"), isDefaulted()))); + EXPECT_TRUE(matches("class B { ~B() = default; };", + functionDecl(hasName("~B"), isDefaulted()))); +} + +TEST(IsDeleted, MatchesDeletedFunctionDeclarations) { + EXPECT_TRUE( + notMatches("void Func();", functionDecl(hasName("Func"), isDeleted()))); + EXPECT_TRUE(matches("void Func() = delete;", + functionDecl(hasName("Func"), isDeleted()))); +} + +TEST(IsNoThrow, MatchesNoThrowFunctionDeclarations) { + EXPECT_TRUE(notMatches("void f();", functionDecl(isNoThrow()))); + EXPECT_TRUE(notMatches("void f() throw(int);", functionDecl(isNoThrow()))); + EXPECT_TRUE( + notMatches("void f() noexcept(false);", functionDecl(isNoThrow()))); + EXPECT_TRUE(matches("void f() throw();", functionDecl(isNoThrow()))); + EXPECT_TRUE(matches("void f() noexcept;", functionDecl(isNoThrow()))); +} + +TEST(isConstexpr, MatchesConstexprDeclarations) { + EXPECT_TRUE(matches("constexpr int foo = 42;", + varDecl(hasName("foo"), isConstexpr()))); + EXPECT_TRUE(matches("constexpr int bar();", + functionDecl(hasName("bar"), isConstexpr()))); +} + +TEST(TemplateArgumentCountIs, Matches) { + EXPECT_TRUE( + matches("template struct C {}; C c;", + classTemplateSpecializationDecl(templateArgumentCountIs(1)))); + EXPECT_TRUE( + notMatches("template struct C {}; C c;", + classTemplateSpecializationDecl(templateArgumentCountIs(2)))); + + EXPECT_TRUE(matches("template struct C {}; C c;", + templateSpecializationType(templateArgumentCountIs(1)))); + EXPECT_TRUE( + notMatches("template struct C {}; C c;", + templateSpecializationType(templateArgumentCountIs(2)))); +} + +TEST(IsIntegral, Matches) { + EXPECT_TRUE(matches("template struct C {}; C<42> c;", + classTemplateSpecializationDecl( + hasAnyTemplateArgument(isIntegral())))); + EXPECT_TRUE(notMatches("template struct C {}; C c;", + classTemplateSpecializationDecl(hasAnyTemplateArgument( + templateArgument(isIntegral()))))); +} + +TEST(EqualsIntegralValue, Matches) { + EXPECT_TRUE(matches("template struct C {}; C<42> c;", + classTemplateSpecializationDecl( + hasAnyTemplateArgument(equalsIntegralValue("42"))))); + EXPECT_TRUE(matches("template struct C {}; C<-42> c;", + classTemplateSpecializationDecl( + hasAnyTemplateArgument(equalsIntegralValue("-42"))))); + EXPECT_TRUE(matches("template struct C {}; C<-0042> c;", + classTemplateSpecializationDecl( + hasAnyTemplateArgument(equalsIntegralValue("-34"))))); + EXPECT_TRUE(notMatches("template struct C {}; C<42> c;", + classTemplateSpecializationDecl(hasAnyTemplateArgument( + equalsIntegralValue("0042"))))); +} + +TEST(Matcher, MatchesAccessSpecDecls) { + EXPECT_TRUE(matches("class C { public: int i; };", accessSpecDecl())); + EXPECT_TRUE( + matches("class C { public: int i; };", accessSpecDecl(isPublic()))); + EXPECT_TRUE( + notMatches("class C { public: int i; };", accessSpecDecl(isProtected()))); + EXPECT_TRUE( + notMatches("class C { public: int i; };", accessSpecDecl(isPrivate()))); + + EXPECT_TRUE(notMatches("class C { int i; };", accessSpecDecl())); +} + +TEST(Matcher, MatchesFinal) { + EXPECT_TRUE(matches("class X final {};", cxxRecordDecl(isFinal()))); + EXPECT_TRUE(matches("class X { virtual void f() final; };", + cxxMethodDecl(isFinal()))); + EXPECT_TRUE(notMatches("class X {};", cxxRecordDecl(isFinal()))); + EXPECT_TRUE( + notMatches("class X { virtual void f(); };", cxxMethodDecl(isFinal()))); +} + +TEST(Matcher, MatchesVirtualMethod) { + EXPECT_TRUE(matches("class X { virtual int f(); };", + cxxMethodDecl(isVirtual(), hasName("::X::f")))); + EXPECT_TRUE(notMatches("class X { int f(); };", cxxMethodDecl(isVirtual()))); +} + +TEST(Matcher, MatchesVirtualAsWrittenMethod) { + EXPECT_TRUE(matches("class A { virtual int f(); };" + "class B : public A { int f(); };", + cxxMethodDecl(isVirtualAsWritten(), hasName("::A::f")))); + EXPECT_TRUE( + notMatches("class A { virtual int f(); };" + "class B : public A { int f(); };", + cxxMethodDecl(isVirtualAsWritten(), hasName("::B::f")))); +} + +TEST(Matcher, MatchesPureMethod) { + EXPECT_TRUE(matches("class X { virtual int f() = 0; };", + cxxMethodDecl(isPure(), hasName("::X::f")))); + EXPECT_TRUE(notMatches("class X { int f(); };", cxxMethodDecl(isPure()))); +} + +TEST(Matcher, MatchesCopyAssignmentOperator) { + EXPECT_TRUE(matches("class X { X &operator=(X); };", + cxxMethodDecl(isCopyAssignmentOperator()))); + EXPECT_TRUE(matches("class X { X &operator=(X &); };", + cxxMethodDecl(isCopyAssignmentOperator()))); + EXPECT_TRUE(matches("class X { X &operator=(const X &); };", + cxxMethodDecl(isCopyAssignmentOperator()))); + EXPECT_TRUE(matches("class X { X &operator=(volatile X &); };", + cxxMethodDecl(isCopyAssignmentOperator()))); + EXPECT_TRUE(matches("class X { X &operator=(const volatile X &); };", + cxxMethodDecl(isCopyAssignmentOperator()))); + EXPECT_TRUE(notMatches("class X { X &operator=(X &&); };", + cxxMethodDecl(isCopyAssignmentOperator()))); +} + +TEST(Matcher, MatchesMoveAssignmentOperator) { + EXPECT_TRUE(notMatches("class X { X &operator=(X); };", + cxxMethodDecl(isMoveAssignmentOperator()))); + EXPECT_TRUE(matches("class X { X &operator=(X &&); };", + cxxMethodDecl(isMoveAssignmentOperator()))); + EXPECT_TRUE(matches("class X { X &operator=(const X &&); };", + cxxMethodDecl(isMoveAssignmentOperator()))); + EXPECT_TRUE(matches("class X { X &operator=(volatile X &&); };", + cxxMethodDecl(isMoveAssignmentOperator()))); + EXPECT_TRUE(matches("class X { X &operator=(const volatile X &&); };", + cxxMethodDecl(isMoveAssignmentOperator()))); + EXPECT_TRUE(notMatches("class X { X &operator=(X &); };", + cxxMethodDecl(isMoveAssignmentOperator()))); +} + +TEST(Matcher, MatchesConstMethod) { + EXPECT_TRUE( + matches("struct A { void foo() const; };", cxxMethodDecl(isConst()))); + EXPECT_TRUE( + notMatches("struct A { void foo(); };", cxxMethodDecl(isConst()))); +} + +TEST(Matcher, MatchesOverridingMethod) { + EXPECT_TRUE(matches("class X { virtual int f(); }; " + "class Y : public X { int f(); };", + cxxMethodDecl(isOverride(), hasName("::Y::f")))); + EXPECT_TRUE(notMatches("class X { virtual int f(); }; " + "class Y : public X { int f(); };", + cxxMethodDecl(isOverride(), hasName("::X::f")))); + EXPECT_TRUE(notMatches("class X { int f(); }; " + "class Y : public X { int f(); };", + cxxMethodDecl(isOverride()))); + EXPECT_TRUE(notMatches("class X { int f(); int f(int); }; ", + cxxMethodDecl(isOverride()))); + EXPECT_TRUE( + matches("template struct Y : Base { void f() override;};", + cxxMethodDecl(isOverride(), hasName("::Y::f")))); +} + +TEST(Matcher, ConstructorArgument) { + StatementMatcher Constructor = cxxConstructExpr( + hasArgument(0, declRefExpr(to(varDecl(hasName("y")))))); + + EXPECT_TRUE( + matches("class X { public: X(int); }; void x() { int y; X x(y); }", + Constructor)); + EXPECT_TRUE( + matches("class X { public: X(int); }; void x() { int y; X x = X(y); }", + Constructor)); + EXPECT_TRUE( + matches("class X { public: X(int); }; void x() { int y; X x = y; }", + Constructor)); + EXPECT_TRUE( + notMatches("class X { public: X(int); }; void x() { int z; X x(z); }", + Constructor)); + + StatementMatcher WrongIndex = cxxConstructExpr( + hasArgument(42, declRefExpr(to(varDecl(hasName("y")))))); + EXPECT_TRUE( + notMatches("class X { public: X(int); }; void x() { int y; X x(y); }", + WrongIndex)); +} + +TEST(Matcher, ConstructorArgumentCount) { + StatementMatcher Constructor1Arg = cxxConstructExpr(argumentCountIs(1)); + + EXPECT_TRUE( + matches("class X { public: X(int); }; void x() { X x(0); }", + Constructor1Arg)); + EXPECT_TRUE( + matches("class X { public: X(int); }; void x() { X x = X(0); }", + Constructor1Arg)); + EXPECT_TRUE( + matches("class X { public: X(int); }; void x() { X x = 0; }", + Constructor1Arg)); + EXPECT_TRUE( + notMatches("class X { public: X(int, int); }; void x() { X x(0, 0); }", + Constructor1Arg)); +} + +TEST(Matcher, ConstructorListInitialization) { + StatementMatcher ConstructorListInit = + cxxConstructExpr(isListInitialization()); + + EXPECT_TRUE( + matches("class X { public: X(int); }; void x() { X x{0}; }", + ConstructorListInit)); + EXPECT_FALSE( + matches("class X { public: X(int); }; void x() { X x(0); }", + ConstructorListInit)); +} + +TEST(ConstructorDeclaration, IsImplicit) { + // This one doesn't match because the constructor is not added by the + // compiler (it is not needed). + EXPECT_TRUE(notMatches("class Foo { };", + cxxConstructorDecl(isImplicit()))); + // The compiler added the implicit default constructor. + EXPECT_TRUE(matches("class Foo { }; Foo* f = new Foo();", + cxxConstructorDecl(isImplicit()))); + EXPECT_TRUE(matches("class Foo { Foo(){} };", + cxxConstructorDecl(unless(isImplicit())))); + // The compiler added an implicit assignment operator. + EXPECT_TRUE(matches("struct A { int x; } a = {0}, b = a; void f() { a = b; }", + cxxMethodDecl(isImplicit(), hasName("operator=")))); +} + +TEST(ConstructorDeclaration, IsExplicit) { + EXPECT_TRUE(matches("struct S { explicit S(int); };", + cxxConstructorDecl(isExplicit()))); + EXPECT_TRUE(notMatches("struct S { S(int); };", + cxxConstructorDecl(isExplicit()))); +} + +TEST(ConstructorDeclaration, Kinds) { + EXPECT_TRUE(matches("struct S { S(); };", + cxxConstructorDecl(isDefaultConstructor()))); + EXPECT_TRUE(notMatches("struct S { S(); };", + cxxConstructorDecl(isCopyConstructor()))); + EXPECT_TRUE(notMatches("struct S { S(); };", + cxxConstructorDecl(isMoveConstructor()))); + + EXPECT_TRUE(notMatches("struct S { S(const S&); };", + cxxConstructorDecl(isDefaultConstructor()))); + EXPECT_TRUE(matches("struct S { S(const S&); };", + cxxConstructorDecl(isCopyConstructor()))); + EXPECT_TRUE(notMatches("struct S { S(const S&); };", + cxxConstructorDecl(isMoveConstructor()))); + + EXPECT_TRUE(notMatches("struct S { S(S&&); };", + cxxConstructorDecl(isDefaultConstructor()))); + EXPECT_TRUE(notMatches("struct S { S(S&&); };", + cxxConstructorDecl(isCopyConstructor()))); + EXPECT_TRUE(matches("struct S { S(S&&); };", + cxxConstructorDecl(isMoveConstructor()))); +} + +TEST(ConstructorDeclaration, IsUserProvided) { + EXPECT_TRUE(notMatches("struct S { int X = 0; };", + cxxConstructorDecl(isUserProvided()))); + EXPECT_TRUE(notMatches("struct S { S() = default; };", + cxxConstructorDecl(isUserProvided()))); + EXPECT_TRUE(notMatches("struct S { S() = delete; };", + cxxConstructorDecl(isUserProvided()))); + EXPECT_TRUE( + matches("struct S { S(); };", cxxConstructorDecl(isUserProvided()))); + EXPECT_TRUE(matches("struct S { S(); }; S::S(){}", + cxxConstructorDecl(isUserProvided()))); +} + +TEST(ConstructorDeclaration, IsDelegatingConstructor) { + EXPECT_TRUE(notMatches("struct S { S(); S(int); int X; };", + cxxConstructorDecl(isDelegatingConstructor()))); + EXPECT_TRUE(notMatches("struct S { S(){} S(int X) : X(X) {} int X; };", + cxxConstructorDecl(isDelegatingConstructor()))); + EXPECT_TRUE(matches( + "struct S { S() : S(0) {} S(int X) : X(X) {} int X; };", + cxxConstructorDecl(isDelegatingConstructor(), parameterCountIs(0)))); + EXPECT_TRUE(matches( + "struct S { S(); S(int X); int X; }; S::S(int X) : S() {}", + cxxConstructorDecl(isDelegatingConstructor(), parameterCountIs(1)))); +} + +TEST(StringLiteral, HasSize) { + StatementMatcher Literal = stringLiteral(hasSize(4)); + EXPECT_TRUE(matches("const char *s = \"abcd\";", Literal)); + // wide string + EXPECT_TRUE(matches("const wchar_t *s = L\"abcd\";", Literal)); + // with escaped characters + EXPECT_TRUE(matches("const char *s = \"\x05\x06\x07\x08\";", Literal)); + // no matching, too small + EXPECT_TRUE(notMatches("const char *s = \"ab\";", Literal)); +} + +TEST(Matcher, HasNameSupportsNamespaces) { + EXPECT_TRUE(matches("namespace a { namespace b { class C; } }", + recordDecl(hasName("a::b::C")))); + EXPECT_TRUE(matches("namespace a { namespace b { class C; } }", + recordDecl(hasName("::a::b::C")))); + EXPECT_TRUE(matches("namespace a { namespace b { class C; } }", + recordDecl(hasName("b::C")))); + EXPECT_TRUE(matches("namespace a { namespace b { class C; } }", + recordDecl(hasName("C")))); + EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", + recordDecl(hasName("c::b::C")))); + EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", + recordDecl(hasName("a::c::C")))); + EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", + recordDecl(hasName("a::b::A")))); + EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", + recordDecl(hasName("::C")))); + EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", + recordDecl(hasName("::b::C")))); + EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", + recordDecl(hasName("z::a::b::C")))); + EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }", + recordDecl(hasName("a+b::C")))); + EXPECT_TRUE(notMatches("namespace a { namespace b { class AC; } }", + recordDecl(hasName("C")))); +} + +TEST(Matcher, HasNameSupportsOuterClasses) { + EXPECT_TRUE( + matches("class A { class B { class C; }; };", + recordDecl(hasName("A::B::C")))); + EXPECT_TRUE( + matches("class A { class B { class C; }; };", + recordDecl(hasName("::A::B::C")))); + EXPECT_TRUE( + matches("class A { class B { class C; }; };", + recordDecl(hasName("B::C")))); + EXPECT_TRUE( + matches("class A { class B { class C; }; };", + recordDecl(hasName("C")))); + EXPECT_TRUE( + notMatches("class A { class B { class C; }; };", + recordDecl(hasName("c::B::C")))); + EXPECT_TRUE( + notMatches("class A { class B { class C; }; };", + recordDecl(hasName("A::c::C")))); + EXPECT_TRUE( + notMatches("class A { class B { class C; }; };", + recordDecl(hasName("A::B::A")))); + EXPECT_TRUE( + notMatches("class A { class B { class C; }; };", + recordDecl(hasName("::C")))); + EXPECT_TRUE( + notMatches("class A { class B { class C; }; };", + recordDecl(hasName("::B::C")))); + EXPECT_TRUE(notMatches("class A { class B { class C; }; };", + recordDecl(hasName("z::A::B::C")))); + EXPECT_TRUE( + notMatches("class A { class B { class C; }; };", + recordDecl(hasName("A+B::C")))); +} + +TEST(Matcher, HasNameSupportsInlinedNamespaces) { + std::string code = "namespace a { inline namespace b { class C; } }"; + EXPECT_TRUE(matches(code, recordDecl(hasName("a::b::C")))); + EXPECT_TRUE(matches(code, recordDecl(hasName("a::C")))); + EXPECT_TRUE(matches(code, recordDecl(hasName("::a::b::C")))); + EXPECT_TRUE(matches(code, recordDecl(hasName("::a::C")))); +} + +TEST(Matcher, HasNameSupportsAnonymousNamespaces) { + std::string code = "namespace a { namespace { class C; } }"; + EXPECT_TRUE( + matches(code, recordDecl(hasName("a::(anonymous namespace)::C")))); + EXPECT_TRUE(matches(code, recordDecl(hasName("a::C")))); + EXPECT_TRUE( + matches(code, recordDecl(hasName("::a::(anonymous namespace)::C")))); + EXPECT_TRUE(matches(code, recordDecl(hasName("::a::C")))); +} + +TEST(Matcher, HasNameSupportsAnonymousOuterClasses) { + EXPECT_TRUE(matches("class A { class { class C; } x; };", + recordDecl(hasName("A::(anonymous class)::C")))); + EXPECT_TRUE(matches("class A { class { class C; } x; };", + recordDecl(hasName("::A::(anonymous class)::C")))); + EXPECT_FALSE(matches("class A { class { class C; } x; };", + recordDecl(hasName("::A::C")))); + EXPECT_TRUE(matches("class A { struct { class C; } x; };", + recordDecl(hasName("A::(anonymous struct)::C")))); + EXPECT_TRUE(matches("class A { struct { class C; } x; };", + recordDecl(hasName("::A::(anonymous struct)::C")))); + EXPECT_FALSE(matches("class A { struct { class C; } x; };", + recordDecl(hasName("::A::C")))); +} + +TEST(Matcher, HasNameSupportsFunctionScope) { + std::string code = + "namespace a { void F(int a) { struct S { int m; }; int i; } }"; + EXPECT_TRUE(matches(code, varDecl(hasName("i")))); + EXPECT_FALSE(matches(code, varDecl(hasName("F()::i")))); + + EXPECT_TRUE(matches(code, fieldDecl(hasName("m")))); + EXPECT_TRUE(matches(code, fieldDecl(hasName("S::m")))); + EXPECT_TRUE(matches(code, fieldDecl(hasName("F(int)::S::m")))); + EXPECT_TRUE(matches(code, fieldDecl(hasName("a::F(int)::S::m")))); + EXPECT_TRUE(matches(code, fieldDecl(hasName("::a::F(int)::S::m")))); +} + +TEST(Matcher, HasAnyName) { + const std::string Code = "namespace a { namespace b { class C; } }"; + + EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("XX", "a::b::C")))); + EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("a::b::C", "XX")))); + EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("XX::C", "a::b::C")))); + EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("XX", "C")))); + + EXPECT_TRUE(notMatches(Code, recordDecl(hasAnyName("::C", "::b::C")))); + EXPECT_TRUE( + matches(Code, recordDecl(hasAnyName("::C", "::b::C", "::a::b::C")))); + + std::vector Names = {"::C", "::b::C", "::a::b::C"}; + EXPECT_TRUE(matches(Code, recordDecl(hasAnyName(Names)))); +} + +TEST(Matcher, IsDefinition) { + DeclarationMatcher DefinitionOfClassA = + recordDecl(hasName("A"), isDefinition()); + EXPECT_TRUE(matches("class A {};", DefinitionOfClassA)); + EXPECT_TRUE(notMatches("class A;", DefinitionOfClassA)); + + DeclarationMatcher DefinitionOfVariableA = + varDecl(hasName("a"), isDefinition()); + EXPECT_TRUE(matches("int a;", DefinitionOfVariableA)); + EXPECT_TRUE(notMatches("extern int a;", DefinitionOfVariableA)); + + DeclarationMatcher DefinitionOfMethodA = + cxxMethodDecl(hasName("a"), isDefinition()); + EXPECT_TRUE(matches("class A { void a() {} };", DefinitionOfMethodA)); + EXPECT_TRUE(notMatches("class A { void a(); };", DefinitionOfMethodA)); +} + +TEST(Matcher, HandlesNullQualTypes) { + // FIXME: Add a Type matcher so we can replace uses of this + // variable with Type(True()) + const TypeMatcher AnyType = anything(); + + // We don't really care whether this matcher succeeds; we're testing that + // it completes without crashing. + EXPECT_TRUE(matches( + "struct A { };" + "template " + "void f(T t) {" + " T local_t(t /* this becomes a null QualType in the AST */);" + "}" + "void g() {" + " f(0);" + "}", + expr(hasType(TypeMatcher( + anyOf( + TypeMatcher(hasDeclaration(anything())), + pointsTo(AnyType), + references(AnyType) + // Other QualType matchers should go here. + )))))); +} + + +TEST(StatementCountIs, FindsNoStatementsInAnEmptyCompoundStatement) { + EXPECT_TRUE(matches("void f() { }", + compoundStmt(statementCountIs(0)))); + EXPECT_TRUE(notMatches("void f() {}", + compoundStmt(statementCountIs(1)))); +} + +TEST(StatementCountIs, AppearsToMatchOnlyOneCount) { + EXPECT_TRUE(matches("void f() { 1; }", + compoundStmt(statementCountIs(1)))); + EXPECT_TRUE(notMatches("void f() { 1; }", + compoundStmt(statementCountIs(0)))); + EXPECT_TRUE(notMatches("void f() { 1; }", + compoundStmt(statementCountIs(2)))); +} + +TEST(StatementCountIs, WorksWithMultipleStatements) { + EXPECT_TRUE(matches("void f() { 1; 2; 3; }", + compoundStmt(statementCountIs(3)))); +} + +TEST(StatementCountIs, WorksWithNestedCompoundStatements) { + EXPECT_TRUE(matches("void f() { { 1; } { 1; 2; 3; 4; } }", + compoundStmt(statementCountIs(1)))); + EXPECT_TRUE(matches("void f() { { 1; } { 1; 2; 3; 4; } }", + compoundStmt(statementCountIs(2)))); + EXPECT_TRUE(notMatches("void f() { { 1; } { 1; 2; 3; 4; } }", + compoundStmt(statementCountIs(3)))); + EXPECT_TRUE(matches("void f() { { 1; } { 1; 2; 3; 4; } }", + compoundStmt(statementCountIs(4)))); +} + +TEST(Member, WorksInSimplestCase) { + EXPECT_TRUE(matches("struct { int first; } s; int i(s.first);", + memberExpr(member(hasName("first"))))); +} + +TEST(Member, DoesNotMatchTheBaseExpression) { + // Don't pick out the wrong part of the member expression, this should + // be checking the member (name) only. + EXPECT_TRUE(notMatches("struct { int i; } first; int i(first.i);", + memberExpr(member(hasName("first"))))); +} + +TEST(Member, MatchesInMemberFunctionCall) { + EXPECT_TRUE(matches("void f() {" + " struct { void first() {}; } s;" + " s.first();" + "};", + memberExpr(member(hasName("first"))))); +} + +TEST(Member, MatchesMember) { + EXPECT_TRUE(matches( + "struct A { int i; }; void f() { A a; a.i = 2; }", + memberExpr(hasDeclaration(fieldDecl(hasType(isInteger())))))); + EXPECT_TRUE(notMatches( + "struct A { float f; }; void f() { A a; a.f = 2.0f; }", + memberExpr(hasDeclaration(fieldDecl(hasType(isInteger())))))); +} + + +TEST(Member, UnderstandsAccess) { + EXPECT_TRUE(matches( + "struct A { int i; };", fieldDecl(isPublic(), hasName("i")))); + EXPECT_TRUE(notMatches( + "struct A { int i; };", fieldDecl(isProtected(), hasName("i")))); + EXPECT_TRUE(notMatches( + "struct A { int i; };", fieldDecl(isPrivate(), hasName("i")))); + + EXPECT_TRUE(notMatches( + "class A { int i; };", fieldDecl(isPublic(), hasName("i")))); + EXPECT_TRUE(notMatches( + "class A { int i; };", fieldDecl(isProtected(), hasName("i")))); + EXPECT_TRUE(matches( + "class A { int i; };", fieldDecl(isPrivate(), hasName("i")))); + + EXPECT_TRUE(notMatches( + "class A { protected: int i; };", fieldDecl(isPublic(), hasName("i")))); + EXPECT_TRUE(matches("class A { protected: int i; };", + fieldDecl(isProtected(), hasName("i")))); + EXPECT_TRUE(notMatches( + "class A { protected: int i; };", fieldDecl(isPrivate(), hasName("i")))); + + // Non-member decls have the AccessSpecifier AS_none and thus aren't matched. + EXPECT_TRUE(notMatches("int i;", varDecl(isPublic(), hasName("i")))); + EXPECT_TRUE(notMatches("int i;", varDecl(isProtected(), hasName("i")))); + EXPECT_TRUE(notMatches("int i;", varDecl(isPrivate(), hasName("i")))); +} + +TEST(HasObjectExpression, DoesNotMatchMember) { + EXPECT_TRUE(notMatches( + "class X {}; struct Z { X m; }; void f(Z z) { z.m; }", + memberExpr(hasObjectExpression(hasType(recordDecl(hasName("X"))))))); +} + +TEST(HasObjectExpression, MatchesBaseOfVariable) { + EXPECT_TRUE(matches( + "struct X { int m; }; void f(X x) { x.m; }", + memberExpr(hasObjectExpression(hasType(recordDecl(hasName("X"))))))); + EXPECT_TRUE(matches( + "struct X { int m; }; void f(X* x) { x->m; }", + memberExpr(hasObjectExpression( + hasType(pointsTo(recordDecl(hasName("X")))))))); +} + +TEST(HasObjectExpression, + MatchesObjectExpressionOfImplicitlyFormedMemberExpression) { + EXPECT_TRUE(matches( + "class X {}; struct S { X m; void f() { this->m; } };", + memberExpr(hasObjectExpression( + hasType(pointsTo(recordDecl(hasName("S")))))))); + EXPECT_TRUE(matches( + "class X {}; struct S { X m; void f() { m; } };", + memberExpr(hasObjectExpression( + hasType(pointsTo(recordDecl(hasName("S")))))))); +} + +TEST(Field, DoesNotMatchNonFieldMembers) { + EXPECT_TRUE(notMatches("class X { void m(); };", fieldDecl(hasName("m")))); + EXPECT_TRUE(notMatches("class X { class m {}; };", fieldDecl(hasName("m")))); + EXPECT_TRUE(notMatches("class X { enum { m }; };", fieldDecl(hasName("m")))); + EXPECT_TRUE(notMatches("class X { enum m {}; };", fieldDecl(hasName("m")))); +} + +TEST(Field, MatchesField) { + EXPECT_TRUE(matches("class X { int m; };", fieldDecl(hasName("m")))); +} + +TEST(IsVolatileQualified, QualifiersMatch) { + EXPECT_TRUE(matches("volatile int i = 42;", + varDecl(hasType(isVolatileQualified())))); + EXPECT_TRUE(notMatches("volatile int *i;", + varDecl(hasType(isVolatileQualified())))); + EXPECT_TRUE(matches("typedef volatile int v_int; v_int i = 42;", + varDecl(hasType(isVolatileQualified())))); +} + +TEST(IsConstQualified, MatchesConstInt) { + EXPECT_TRUE(matches("const int i = 42;", + varDecl(hasType(isConstQualified())))); +} + +TEST(IsConstQualified, MatchesConstPointer) { + EXPECT_TRUE(matches("int i = 42; int* const p(&i);", + varDecl(hasType(isConstQualified())))); +} + +TEST(IsConstQualified, MatchesThroughTypedef) { + EXPECT_TRUE(matches("typedef const int const_int; const_int i = 42;", + varDecl(hasType(isConstQualified())))); + EXPECT_TRUE(matches("typedef int* int_ptr; const int_ptr p(0);", + varDecl(hasType(isConstQualified())))); +} + +TEST(IsConstQualified, DoesNotMatchInappropriately) { + EXPECT_TRUE(notMatches("typedef int nonconst_int; nonconst_int i = 42;", + varDecl(hasType(isConstQualified())))); + EXPECT_TRUE(notMatches("int const* p;", + varDecl(hasType(isConstQualified())))); +} + +TEST(DeclCount, DeclCountIsCorrect) { + EXPECT_TRUE(matches("void f() {int i,j;}", + declStmt(declCountIs(2)))); + EXPECT_TRUE(notMatches("void f() {int i,j; int k;}", + declStmt(declCountIs(3)))); + EXPECT_TRUE(notMatches("void f() {int i,j, k, l;}", + declStmt(declCountIs(3)))); +} + + +TEST(EachOf, TriggersForEachMatch) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A { int a; int b; };", + recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")), + has(fieldDecl(hasName("b")).bind("v")))), + llvm::make_unique>("v", 2))); +} + +TEST(EachOf, BehavesLikeAnyOfUnlessBothMatch) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A { int a; int c; };", + recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")), + has(fieldDecl(hasName("b")).bind("v")))), + llvm::make_unique>("v", 1))); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class A { int c; int b; };", + recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")), + has(fieldDecl(hasName("b")).bind("v")))), + llvm::make_unique>("v", 1))); + EXPECT_TRUE(notMatches( + "class A { int c; int d; };", + recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")), + has(fieldDecl(hasName("b")).bind("v")))))); +} + +TEST(IsTemplateInstantiation, MatchesImplicitClassTemplateInstantiation) { + // Make sure that we can both match the class by name (::X) and by the type + // the template was instantiated with (via a field). + + EXPECT_TRUE(matches( + "template class X {}; class A {}; X x;", + cxxRecordDecl(hasName("::X"), isTemplateInstantiation()))); + + EXPECT_TRUE(matches( + "template class X { T t; }; class A {}; X x;", + cxxRecordDecl(isTemplateInstantiation(), hasDescendant( + fieldDecl(hasType(recordDecl(hasName("A")))))))); +} + +TEST(IsTemplateInstantiation, MatchesImplicitFunctionTemplateInstantiation) { + EXPECT_TRUE(matches( + "template void f(T t) {} class A {}; void g() { f(A()); }", + functionDecl(hasParameter(0, hasType(recordDecl(hasName("A")))), + isTemplateInstantiation()))); +} + +TEST(IsTemplateInstantiation, MatchesExplicitClassTemplateInstantiation) { + EXPECT_TRUE(matches( + "template class X { T t; }; class A {};" + "template class X;", + cxxRecordDecl(isTemplateInstantiation(), hasDescendant( + fieldDecl(hasType(recordDecl(hasName("A")))))))); +} + +TEST(IsTemplateInstantiation, + MatchesInstantiationOfPartiallySpecializedClassTemplate) { + EXPECT_TRUE(matches( + "template class X {};" + "template class X {}; class A {}; X x;", + cxxRecordDecl(hasName("::X"), isTemplateInstantiation()))); +} + +TEST(IsTemplateInstantiation, + MatchesInstantiationOfClassTemplateNestedInNonTemplate) { + EXPECT_TRUE(matches( + "class A {};" + "class X {" + " template class Y { U u; };" + " Y y;" + "};", + cxxRecordDecl(hasName("::X::Y"), isTemplateInstantiation()))); +} + +TEST(IsTemplateInstantiation, DoesNotMatchInstantiationsInsideOfInstantiation) { + // FIXME: Figure out whether this makes sense. It doesn't affect the + // normal use case as long as the uppermost instantiation always is marked + // as template instantiation, but it might be confusing as a predicate. + EXPECT_TRUE(matches( + "class A {};" + "template class X {" + " template class Y { U u; };" + " Y y;" + "}; X x;", + cxxRecordDecl(hasName("::X::Y"), unless(isTemplateInstantiation())))); +} + +TEST(IsTemplateInstantiation, DoesNotMatchExplicitClassTemplateSpecialization) { + EXPECT_TRUE(notMatches( + "template class X {}; class A {};" + "template <> class X {}; X x;", + cxxRecordDecl(hasName("::X"), isTemplateInstantiation()))); +} + +TEST(IsTemplateInstantiation, DoesNotMatchNonTemplate) { + EXPECT_TRUE(notMatches( + "class A {}; class Y { A a; };", + cxxRecordDecl(isTemplateInstantiation()))); +} + +TEST(IsInstantiated, MatchesInstantiation) { + EXPECT_TRUE( + matches("template class A { T i; }; class Y { A a; };", + cxxRecordDecl(isInstantiated()))); +} + +TEST(IsInstantiated, NotMatchesDefinition) { + EXPECT_TRUE(notMatches("template class A { T i; };", + cxxRecordDecl(isInstantiated()))); +} + +TEST(IsInTemplateInstantiation, MatchesInstantiationStmt) { + EXPECT_TRUE(matches("template struct A { A() { T i; } };" + "class Y { A a; }; Y y;", + declStmt(isInTemplateInstantiation()))); +} + +TEST(IsInTemplateInstantiation, NotMatchesDefinitionStmt) { + EXPECT_TRUE(notMatches("template struct A { void x() { T i; } };", + declStmt(isInTemplateInstantiation()))); +} + +TEST(IsInstantiated, MatchesFunctionInstantiation) { + EXPECT_TRUE( + matches("template void A(T t) { T i; } void x() { A(0); }", + functionDecl(isInstantiated()))); +} + +TEST(IsInstantiated, NotMatchesFunctionDefinition) { + EXPECT_TRUE(notMatches("template void A(T t) { T i; }", + varDecl(isInstantiated()))); +} + +TEST(IsInTemplateInstantiation, MatchesFunctionInstantiationStmt) { + EXPECT_TRUE( + matches("template void A(T t) { T i; } void x() { A(0); }", + declStmt(isInTemplateInstantiation()))); +} + +TEST(IsInTemplateInstantiation, NotMatchesFunctionDefinitionStmt) { + EXPECT_TRUE(notMatches("template void A(T t) { T i; }", + declStmt(isInTemplateInstantiation()))); +} + +TEST(IsInTemplateInstantiation, Sharing) { + auto Matcher = binaryOperator(unless(isInTemplateInstantiation())); + // FIXME: Node sharing is an implementation detail, exposing it is ugly + // and makes the matcher behave in non-obvious ways. + EXPECT_TRUE(notMatches( + "int j; template void A(T t) { j += 42; } void x() { A(0); }", + Matcher)); + EXPECT_TRUE(matches( + "int j; template void A(T t) { j += t; } void x() { A(0); }", + Matcher)); +} + +TEST(IsExplicitTemplateSpecialization, + DoesNotMatchPrimaryTemplate) { + EXPECT_TRUE(notMatches( + "template class X {};", + cxxRecordDecl(isExplicitTemplateSpecialization()))); + EXPECT_TRUE(notMatches( + "template void f(T t);", + functionDecl(isExplicitTemplateSpecialization()))); +} + +TEST(IsExplicitTemplateSpecialization, + DoesNotMatchExplicitTemplateInstantiations) { + EXPECT_TRUE(notMatches( + "template class X {};" + "template class X; extern template class X;", + cxxRecordDecl(isExplicitTemplateSpecialization()))); + EXPECT_TRUE(notMatches( + "template void f(T t) {}" + "template void f(int t); extern template void f(long t);", + functionDecl(isExplicitTemplateSpecialization()))); +} + +TEST(IsExplicitTemplateSpecialization, + DoesNotMatchImplicitTemplateInstantiations) { + EXPECT_TRUE(notMatches( + "template class X {}; X x;", + cxxRecordDecl(isExplicitTemplateSpecialization()))); + EXPECT_TRUE(notMatches( + "template void f(T t); void g() { f(10); }", + functionDecl(isExplicitTemplateSpecialization()))); +} + +TEST(IsExplicitTemplateSpecialization, + MatchesExplicitTemplateSpecializations) { + EXPECT_TRUE(matches( + "template class X {};" + "template<> class X {};", + cxxRecordDecl(isExplicitTemplateSpecialization()))); + EXPECT_TRUE(matches( + "template void f(T t) {}" + "template<> void f(int t) {}", + functionDecl(isExplicitTemplateSpecialization()))); +} + +TEST(TypeMatching, MatchesBool) { + EXPECT_TRUE(matches("struct S { bool func(); };", + cxxMethodDecl(returns(booleanType())))); + EXPECT_TRUE(notMatches("struct S { void func(); };", + cxxMethodDecl(returns(booleanType())))); +} + +TEST(TypeMatching, MatchesVoid) { + EXPECT_TRUE(matches("struct S { void func(); };", + cxxMethodDecl(returns(voidType())))); +} + +TEST(TypeMatching, MatchesRealFloats) { + EXPECT_TRUE(matches("struct S { float func(); };", + cxxMethodDecl(returns(realFloatingPointType())))); + EXPECT_TRUE(notMatches("struct S { int func(); };", + cxxMethodDecl(returns(realFloatingPointType())))); + EXPECT_TRUE(matches("struct S { long double func(); };", + cxxMethodDecl(returns(realFloatingPointType())))); +} + +TEST(TypeMatching, MatchesArrayTypes) { + EXPECT_TRUE(matches("int a[] = {2,3};", arrayType())); + EXPECT_TRUE(matches("int a[42];", arrayType())); + EXPECT_TRUE(matches("void f(int b) { int a[b]; }", arrayType())); + + EXPECT_TRUE(notMatches("struct A {}; A a[7];", + arrayType(hasElementType(builtinType())))); + + EXPECT_TRUE(matches( + "int const a[] = { 2, 3 };", + qualType(arrayType(hasElementType(builtinType()))))); + EXPECT_TRUE(matches( + "int const a[] = { 2, 3 };", + qualType(isConstQualified(), arrayType(hasElementType(builtinType()))))); + EXPECT_TRUE(matches( + "typedef const int T; T x[] = { 1, 2 };", + qualType(isConstQualified(), arrayType()))); + + EXPECT_TRUE(notMatches( + "int a[] = { 2, 3 };", + qualType(isConstQualified(), arrayType(hasElementType(builtinType()))))); + EXPECT_TRUE(notMatches( + "int a[] = { 2, 3 };", + qualType(arrayType(hasElementType(isConstQualified(), builtinType()))))); + EXPECT_TRUE(notMatches( + "int const a[] = { 2, 3 };", + qualType(arrayType(hasElementType(builtinType())), + unless(isConstQualified())))); + + EXPECT_TRUE(matches("int a[2];", + constantArrayType(hasElementType(builtinType())))); + EXPECT_TRUE(matches("const int a = 0;", qualType(isInteger()))); +} + +TEST(TypeMatching, DecayedType) { + EXPECT_TRUE(matches("void f(int i[]);", valueDecl(hasType(decayedType(hasDecayedType(pointerType())))))); + EXPECT_TRUE(notMatches("int i[7];", decayedType())); +} + +TEST(TypeMatching, MatchesComplexTypes) { + EXPECT_TRUE(matches("_Complex float f;", complexType())); + EXPECT_TRUE(matches( + "_Complex float f;", + complexType(hasElementType(builtinType())))); + EXPECT_TRUE(notMatches( + "_Complex float f;", + complexType(hasElementType(isInteger())))); +} + +TEST(NS, Anonymous) { + EXPECT_TRUE(notMatches("namespace N {}", namespaceDecl(isAnonymous()))); + EXPECT_TRUE(matches("namespace {}", namespaceDecl(isAnonymous()))); +} + +TEST(EqualsBoundNodeMatcher, QualType) { + EXPECT_TRUE(matches( + "int i = 1;", varDecl(hasType(qualType().bind("type")), + hasInitializer(ignoringParenImpCasts( + hasType(qualType(equalsBoundNode("type")))))))); + EXPECT_TRUE(notMatches("int i = 1.f;", + varDecl(hasType(qualType().bind("type")), + hasInitializer(ignoringParenImpCasts(hasType( + qualType(equalsBoundNode("type")))))))); +} + +TEST(EqualsBoundNodeMatcher, NonMatchingTypes) { + EXPECT_TRUE(notMatches( + "int i = 1;", varDecl(namedDecl(hasName("i")).bind("name"), + hasInitializer(ignoringParenImpCasts( + hasType(qualType(equalsBoundNode("type")))))))); +} + +TEST(EqualsBoundNodeMatcher, Stmt) { + EXPECT_TRUE( + matches("void f() { if(true) {} }", + stmt(allOf(ifStmt().bind("if"), + hasParent(stmt(has(stmt(equalsBoundNode("if"))))))))); + + EXPECT_TRUE(notMatches( + "void f() { if(true) { if (true) {} } }", + stmt(allOf(ifStmt().bind("if"), has(stmt(equalsBoundNode("if"))))))); +} + +TEST(EqualsBoundNodeMatcher, Decl) { + EXPECT_TRUE(matches( + "class X { class Y {}; };", + decl(allOf(recordDecl(hasName("::X::Y")).bind("record"), + hasParent(decl(has(decl(equalsBoundNode("record"))))))))); + + EXPECT_TRUE(notMatches("class X { class Y {}; };", + decl(allOf(recordDecl(hasName("::X")).bind("record"), + has(decl(equalsBoundNode("record"))))))); +} + +TEST(EqualsBoundNodeMatcher, Type) { + EXPECT_TRUE(matches( + "class X { int a; int b; };", + recordDecl( + has(fieldDecl(hasName("a"), hasType(type().bind("t")))), + has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t")))))))); + + EXPECT_TRUE(notMatches( + "class X { int a; double b; };", + recordDecl( + has(fieldDecl(hasName("a"), hasType(type().bind("t")))), + has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t")))))))); +} + +TEST(EqualsBoundNodeMatcher, UsingForEachDescendant) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "int f() {" + " if (1) {" + " int i = 9;" + " }" + " int j = 10;" + " {" + " float k = 9.0;" + " }" + " return 0;" + "}", + // Look for variable declarations within functions whose type is the same + // as the function return type. + functionDecl(returns(qualType().bind("type")), + forEachDescendant(varDecl(hasType( + qualType(equalsBoundNode("type")))).bind("decl"))), + // Only i and j should match, not k. + llvm::make_unique>("decl", 2))); +} + +TEST(EqualsBoundNodeMatcher, FiltersMatchedCombinations) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "void f() {" + " int x;" + " double d;" + " x = d + x - d + x;" + "}", + functionDecl( + hasName("f"), forEachDescendant(varDecl().bind("d")), + forEachDescendant(declRefExpr(to(decl(equalsBoundNode("d")))))), + llvm::make_unique>("d", 5))); + EXPECT_FALSE(true); +} + +TEST(EqualsBoundNodeMatcher, UnlessDescendantsOfAncestorsMatch) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "struct StringRef { int size() const; const char* data() const; };" + "void f(StringRef v) {" + " v.data();" + "}", + cxxMemberCallExpr( + callee(cxxMethodDecl(hasName("data"))), + on(declRefExpr(to( + varDecl(hasType(recordDecl(hasName("StringRef")))).bind("var")))), + unless(hasAncestor(stmt(hasDescendant(cxxMemberCallExpr( + callee(cxxMethodDecl(anyOf(hasName("size"), hasName("length")))), + on(declRefExpr(to(varDecl(equalsBoundNode("var"))))))))))) + .bind("data"), + llvm::make_unique>("data", 1))); + + EXPECT_FALSE(matches( + "struct StringRef { int size() const; const char* data() const; };" + "void f(StringRef v) {" + " v.data();" + " v.size();" + "}", + cxxMemberCallExpr( + callee(cxxMethodDecl(hasName("data"))), + on(declRefExpr(to( + varDecl(hasType(recordDecl(hasName("StringRef")))).bind("var")))), + unless(hasAncestor(stmt(hasDescendant(cxxMemberCallExpr( + callee(cxxMethodDecl(anyOf(hasName("size"), hasName("length")))), + on(declRefExpr(to(varDecl(equalsBoundNode("var"))))))))))) + .bind("data"))); +} + +TEST(NullPointerConstants, Basic) { + EXPECT_TRUE(matches("#define NULL ((void *)0)\n" + "void *v1 = NULL;", expr(nullPointerConstant()))); + EXPECT_TRUE(matches("void *v2 = nullptr;", expr(nullPointerConstant()))); + EXPECT_TRUE(matches("void *v3 = __null;", expr(nullPointerConstant()))); + EXPECT_TRUE(matches("char *cp = (char *)0;", expr(nullPointerConstant()))); + EXPECT_TRUE(matches("int *ip = 0;", expr(nullPointerConstant()))); + EXPECT_TRUE(notMatches("int i = 0;", expr(nullPointerConstant()))); +} + +} // namespace ast_matchers +} // namespace clang Index: unittests/ASTMatchers/NodeMatchersTest.cpp =================================================================== --- /dev/null +++ unittests/ASTMatchers/NodeMatchersTest.cpp @@ -0,0 +1,1520 @@ +//===- unittest/Tooling/NodeMatchersTest.cpp - AST matcher unit tests -----===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "ASTMatchersTest.h" +#include "clang/AST/PrettyPrinter.h" +#include "clang/ASTMatchers/ASTMatchFinder.h" +#include "clang/ASTMatchers/ASTMatchers.h" +#include "clang/Tooling/Tooling.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Support/Host.h" +#include "gtest/gtest.h" + +namespace clang { +namespace ast_matchers { + + +TEST(Finder, DynamicOnlyAcceptsSomeMatchers) { + MatchFinder Finder; + EXPECT_TRUE(Finder.addDynamicMatcher(decl(), nullptr)); + EXPECT_TRUE(Finder.addDynamicMatcher(callExpr(), nullptr)); + EXPECT_TRUE(Finder.addDynamicMatcher(constantArrayType(hasSize(42)), + nullptr)); + + // Do not accept non-toplevel matchers. + EXPECT_FALSE(Finder.addDynamicMatcher(isArrow(), nullptr)); + EXPECT_FALSE(Finder.addDynamicMatcher(hasName("x"), nullptr)); +} + + + +TEST(Decl, MatchesDeclarations) { + EXPECT_TRUE(notMatches("", decl(usingDecl()))); + EXPECT_TRUE(matches("namespace x { class X {}; } using x::X;", + decl(usingDecl()))); +} + +TEST(NameableDeclaration, MatchesVariousDecls) { + DeclarationMatcher NamedX = namedDecl(hasName("X")); + EXPECT_TRUE(matches("typedef int X;", NamedX)); + EXPECT_TRUE(matches("int X;", NamedX)); + EXPECT_TRUE(matches("class foo { virtual void X(); };", NamedX)); + EXPECT_TRUE(matches("void foo() try { } catch(int X) { }", NamedX)); + EXPECT_TRUE(matches("void foo() { int X; }", NamedX)); + EXPECT_TRUE(matches("namespace X { }", NamedX)); + EXPECT_TRUE(matches("enum X { A, B, C };", NamedX)); + + EXPECT_TRUE(notMatches("#define X 1", NamedX)); +} + +TEST(NameableDeclaration, REMatchesVariousDecls) { + DeclarationMatcher NamedX = namedDecl(matchesName("::X")); + EXPECT_TRUE(matches("typedef int Xa;", NamedX)); + EXPECT_TRUE(matches("int Xb;", NamedX)); + EXPECT_TRUE(matches("class foo { virtual void Xc(); };", NamedX)); + EXPECT_TRUE(matches("void foo() try { } catch(int Xdef) { }", NamedX)); + EXPECT_TRUE(matches("void foo() { int Xgh; }", NamedX)); + EXPECT_TRUE(matches("namespace Xij { }", NamedX)); + EXPECT_TRUE(matches("enum X { A, B, C };", NamedX)); + + EXPECT_TRUE(notMatches("#define Xkl 1", NamedX)); + + DeclarationMatcher StartsWithNo = namedDecl(matchesName("::no")); + EXPECT_TRUE(matches("int no_foo;", StartsWithNo)); + EXPECT_TRUE(matches("class foo { virtual void nobody(); };", StartsWithNo)); + + DeclarationMatcher Abc = namedDecl(matchesName("a.*b.*c")); + EXPECT_TRUE(matches("int abc;", Abc)); + EXPECT_TRUE(matches("int aFOObBARc;", Abc)); + EXPECT_TRUE(notMatches("int cab;", Abc)); + EXPECT_TRUE(matches("int cabc;", Abc)); + + DeclarationMatcher StartsWithK = namedDecl(matchesName(":k[^:]*$")); + EXPECT_TRUE(matches("int k;", StartsWithK)); + EXPECT_TRUE(matches("int kAbc;", StartsWithK)); + EXPECT_TRUE(matches("namespace x { int kTest; }", StartsWithK)); + EXPECT_TRUE(matches("class C { int k; };", StartsWithK)); + EXPECT_TRUE(notMatches("class C { int ckc; };", StartsWithK)); +} + +TEST(DeclarationMatcher, MatchClass) { + DeclarationMatcher ClassMatcher(recordDecl()); + llvm::Triple Triple(llvm::sys::getDefaultTargetTriple()); + if (Triple.getOS() != llvm::Triple::Win32 || + Triple.getEnvironment() != llvm::Triple::MSVC) + EXPECT_FALSE(matches("", ClassMatcher)); + else + // Matches class type_info. + EXPECT_TRUE(matches("", ClassMatcher)); + + DeclarationMatcher ClassX = recordDecl(recordDecl(hasName("X"))); + EXPECT_TRUE(matches("class X;", ClassX)); + EXPECT_TRUE(matches("class X {};", ClassX)); + EXPECT_TRUE(matches("template class X {};", ClassX)); + EXPECT_TRUE(notMatches("", ClassX)); +} + +TEST(DeclarationMatcher, translationUnitDecl) { + const std::string Code = "int MyVar1;\n" + "namespace NameSpace {\n" + "int MyVar2;\n" + "} // namespace NameSpace\n"; + EXPECT_TRUE(matches( + Code, varDecl(hasName("MyVar1"), hasDeclContext(translationUnitDecl())))); + EXPECT_FALSE(matches( + Code, varDecl(hasName("MyVar2"), hasDeclContext(translationUnitDecl())))); + EXPECT_TRUE(matches( + Code, + varDecl(hasName("MyVar2"), + hasDeclContext(decl(hasDeclContext(translationUnitDecl())))))); +} + +TEST(DeclarationMatcher, LinkageSpecification) { + EXPECT_TRUE(matches("extern \"C\" { void foo() {}; }", linkageSpecDecl())); + EXPECT_TRUE(notMatches("void foo() {};", linkageSpecDecl())); +} + +TEST(ClassTemplate, DoesNotMatchClass) { + DeclarationMatcher ClassX = classTemplateDecl(hasName("X")); + EXPECT_TRUE(notMatches("class X;", ClassX)); + EXPECT_TRUE(notMatches("class X {};", ClassX)); +} + +TEST(ClassTemplate, MatchesClassTemplate) { + DeclarationMatcher ClassX = classTemplateDecl(hasName("X")); + EXPECT_TRUE(matches("template class X {};", ClassX)); + EXPECT_TRUE(matches("class Z { template class X {}; };", ClassX)); +} + +TEST(ClassTemplate, DoesNotMatchClassTemplateExplicitSpecialization) { + EXPECT_TRUE(notMatches("template class X { };" + "template<> class X { int a; };", + classTemplateDecl(hasName("X"), + hasDescendant(fieldDecl(hasName("a")))))); +} + +TEST(ClassTemplate, DoesNotMatchClassTemplatePartialSpecialization) { + EXPECT_TRUE(notMatches("template class X { };" + "template class X { int a; };", + classTemplateDecl(hasName("X"), + hasDescendant(fieldDecl(hasName("a")))))); +} + +TEST(DeclarationMatcher, MatchCudaDecl) { + EXPECT_TRUE(matchesWithCuda("__global__ void f() { }" + "void g() { f<<<1, 2>>>(); }", + cudaKernelCallExpr())); + EXPECT_TRUE(matchesWithCuda("__attribute__((device)) void f() {}", + hasAttr(clang::attr::CUDADevice))); + EXPECT_TRUE(notMatchesWithCuda("void f() {}", + cudaKernelCallExpr())); + EXPECT_FALSE(notMatchesWithCuda("__attribute__((global)) void f() {}", + hasAttr(clang::attr::CUDAGlobal))); +} + +TEST(ValueDecl, Matches) { + EXPECT_TRUE(matches("enum EnumType { EnumValue };", + valueDecl(hasType(asString("enum EnumType"))))); + EXPECT_TRUE(matches("void FunctionDecl();", + valueDecl(hasType(asString("void (void)"))))); +} + +TEST(Enum, DoesNotMatchClasses) { + EXPECT_TRUE(notMatches("class X {};", enumDecl(hasName("X")))); +} + +TEST(Enum, MatchesEnums) { + EXPECT_TRUE(matches("enum X {};", enumDecl(hasName("X")))); +} + +TEST(EnumConstant, Matches) { + DeclarationMatcher Matcher = enumConstantDecl(hasName("A")); + EXPECT_TRUE(matches("enum X{ A };", Matcher)); + EXPECT_TRUE(notMatches("enum X{ B };", Matcher)); + EXPECT_TRUE(notMatches("enum X {};", Matcher)); +} + + +TEST(Matcher, Call) { + // FIXME: Do we want to overload Call() to directly take + // Matcher, too? + StatementMatcher MethodX = + callExpr(hasDeclaration(cxxMethodDecl(hasName("x")))); + + EXPECT_TRUE(matches("class Y { void x() { x(); } };", MethodX)); + EXPECT_TRUE(notMatches("class Y { void x() {} };", MethodX)); + + StatementMatcher MethodOnY = + cxxMemberCallExpr(on(hasType(recordDecl(hasName("Y"))))); + + EXPECT_TRUE( + matches("class Y { public: void x(); }; void z() { Y y; y.x(); }", + MethodOnY)); + EXPECT_TRUE( + matches("class Y { public: void x(); }; void z(Y &y) { y.x(); }", + MethodOnY)); + EXPECT_TRUE( + notMatches("class Y { public: void x(); }; void z(Y *&y) { y->x(); }", + MethodOnY)); + EXPECT_TRUE( + notMatches("class Y { public: void x(); }; void z(Y y[]) { y->x(); }", + MethodOnY)); + EXPECT_TRUE( + notMatches("class Y { public: void x(); }; void z() { Y *y; y->x(); }", + MethodOnY)); + + StatementMatcher MethodOnYPointer = + cxxMemberCallExpr(on(hasType(pointsTo(recordDecl(hasName("Y")))))); + + EXPECT_TRUE( + matches("class Y { public: void x(); }; void z() { Y *y; y->x(); }", + MethodOnYPointer)); + EXPECT_TRUE( + matches("class Y { public: void x(); }; void z(Y *&y) { y->x(); }", + MethodOnYPointer)); + EXPECT_TRUE( + matches("class Y { public: void x(); }; void z(Y y[]) { y->x(); }", + MethodOnYPointer)); + EXPECT_TRUE( + notMatches("class Y { public: void x(); }; void z() { Y y; y.x(); }", + MethodOnYPointer)); + EXPECT_TRUE( + notMatches("class Y { public: void x(); }; void z(Y &y) { y.x(); }", + MethodOnYPointer)); +} +TEST(Matcher, Lambda) { + EXPECT_TRUE(matches("auto f = [] (int i) { return i; };", + lambdaExpr())); +} + +TEST(Matcher, ForRange) { + EXPECT_TRUE(matches("int as[] = { 1, 2, 3 };" + "void f() { for (auto &a : as); }", + cxxForRangeStmt())); + EXPECT_TRUE(notMatches("void f() { for (int i; i<5; ++i); }", + cxxForRangeStmt())); +} + +TEST(Matcher, SubstNonTypeTemplateParm) { + EXPECT_FALSE(matches("template\n" + "struct A { static const int n = 0; };\n" + "struct B : public A<42> {};", + substNonTypeTemplateParmExpr())); + EXPECT_TRUE(matches("template\n" + "struct A { static const int n = N; };\n" + "struct B : public A<42> {};", + substNonTypeTemplateParmExpr())); +} + +TEST(Matcher, NonTypeTemplateParmDecl) { + EXPECT_TRUE(matches("template void f();", + nonTypeTemplateParmDecl(hasName("N")))); + EXPECT_TRUE( + notMatches("template void f();", nonTypeTemplateParmDecl())); +} + +TEST(Matcher, templateTypeParmDecl) { + EXPECT_TRUE(matches("template void f();", + templateTypeParmDecl(hasName("T")))); + EXPECT_TRUE( + notMatches("template void f();", templateTypeParmDecl())); +} + +TEST(Matcher, UserDefinedLiteral) { + EXPECT_TRUE(matches("constexpr char operator \"\" _inc (const char i) {" + " return i + 1;" + "}" + "char c = 'a'_inc;", + userDefinedLiteral())); +} + +TEST(Matcher, FlowControl) { + EXPECT_TRUE(matches("void f() { while(true) { break; } }", breakStmt())); + EXPECT_TRUE(matches("void f() { while(true) { continue; } }", + continueStmt())); + EXPECT_TRUE(matches("void f() { goto FOO; FOO: ;}", gotoStmt())); + EXPECT_TRUE(matches("void f() { goto FOO; FOO: ;}", + labelStmt( + hasDeclaration( + labelDecl(hasName("FOO")))))); + EXPECT_TRUE(matches("void f() { FOO: ; void *ptr = &&FOO; goto *ptr; }", + addrLabelExpr())); + EXPECT_TRUE(matches("void f() { return; }", returnStmt())); +} + + +TEST(Matcher, OverloadedOperatorCall) { + StatementMatcher OpCall = cxxOperatorCallExpr(); + // Unary operator + EXPECT_TRUE(matches("class Y { }; " + "bool operator!(Y x) { return false; }; " + "Y y; bool c = !y;", OpCall)); + // No match -- special operators like "new", "delete" + // FIXME: operator new takes size_t, for which we need stddef.h, for which + // we need to figure out include paths in the test. + // EXPECT_TRUE(NotMatches("#include \n" + // "class Y { }; " + // "void *operator new(size_t size) { return 0; } " + // "Y *y = new Y;", OpCall)); + EXPECT_TRUE(notMatches("class Y { }; " + "void operator delete(void *p) { } " + "void a() {Y *y = new Y; delete y;}", OpCall)); + // Binary operator + EXPECT_TRUE(matches("class Y { }; " + "bool operator&&(Y x, Y y) { return true; }; " + "Y a; Y b; bool c = a && b;", + OpCall)); + // No match -- normal operator, not an overloaded one. + EXPECT_TRUE(notMatches("bool x = true, y = true; bool t = x && y;", OpCall)); + EXPECT_TRUE(notMatches("int t = 5 << 2;", OpCall)); +} + +TEST(Matcher, ThisPointerType) { + StatementMatcher MethodOnY = + cxxMemberCallExpr(thisPointerType(recordDecl(hasName("Y")))); + + EXPECT_TRUE( + matches("class Y { public: void x(); }; void z() { Y y; y.x(); }", + MethodOnY)); + EXPECT_TRUE( + matches("class Y { public: void x(); }; void z(Y &y) { y.x(); }", + MethodOnY)); + EXPECT_TRUE( + matches("class Y { public: void x(); }; void z(Y *&y) { y->x(); }", + MethodOnY)); + EXPECT_TRUE( + matches("class Y { public: void x(); }; void z(Y y[]) { y->x(); }", + MethodOnY)); + EXPECT_TRUE( + matches("class Y { public: void x(); }; void z() { Y *y; y->x(); }", + MethodOnY)); + + EXPECT_TRUE(matches( + "class Y {" + " public: virtual void x();" + "};" + "class X : public Y {" + " public: virtual void x();" + "};" + "void z() { X *x; x->Y::x(); }", MethodOnY)); +} + +TEST(Matcher, VariableUsage) { + StatementMatcher Reference = + declRefExpr(to( + varDecl(hasInitializer( + cxxMemberCallExpr(thisPointerType(recordDecl(hasName("Y")))))))); + + EXPECT_TRUE(matches( + "class Y {" + " public:" + " bool x() const;" + "};" + "void z(const Y &y) {" + " bool b = y.x();" + " if (b) {}" + "}", Reference)); + + EXPECT_TRUE(notMatches( + "class Y {" + " public:" + " bool x() const;" + "};" + "void z(const Y &y) {" + " bool b = y.x();" + "}", Reference)); +} + +TEST(Matcher, CalledVariable) { + StatementMatcher CallOnVariableY = + cxxMemberCallExpr(on(declRefExpr(to(varDecl(hasName("y")))))); + + EXPECT_TRUE(matches( + "class Y { public: void x() { Y y; y.x(); } };", CallOnVariableY)); + EXPECT_TRUE(matches( + "class Y { public: void x() const { Y y; y.x(); } };", CallOnVariableY)); + EXPECT_TRUE(matches( + "class Y { public: void x(); };" + "class X : public Y { void z() { X y; y.x(); } };", CallOnVariableY)); + EXPECT_TRUE(matches( + "class Y { public: void x(); };" + "class X : public Y { void z() { X *y; y->x(); } };", CallOnVariableY)); + EXPECT_TRUE(notMatches( + "class Y { public: void x(); };" + "class X : public Y { void z() { unsigned long y; ((X*)y)->x(); } };", + CallOnVariableY)); +} + +TEST(UnaryExprOrTypeTraitExpr, MatchesSizeOfAndAlignOf) { + EXPECT_TRUE(matches("void x() { int a = sizeof(a); }", + unaryExprOrTypeTraitExpr())); + EXPECT_TRUE(notMatches("void x() { int a = sizeof(a); }", + alignOfExpr(anything()))); + // FIXME: Uncomment once alignof is enabled. + // EXPECT_TRUE(matches("void x() { int a = alignof(a); }", + // unaryExprOrTypeTraitExpr())); + // EXPECT_TRUE(notMatches("void x() { int a = alignof(a); }", + // sizeOfExpr())); +} + +TEST(MemberExpression, DoesNotMatchClasses) { + EXPECT_TRUE(notMatches("class Y { void x() {} };", memberExpr())); +} + +TEST(MemberExpression, MatchesMemberFunctionCall) { + EXPECT_TRUE(matches("class Y { void x() { x(); } };", memberExpr())); +} + +TEST(MemberExpression, MatchesVariable) { + EXPECT_TRUE( + matches("class Y { void x() { this->y; } int y; };", memberExpr())); + EXPECT_TRUE( + matches("class Y { void x() { y; } int y; };", memberExpr())); + EXPECT_TRUE( + matches("class Y { void x() { Y y; y.y; } int y; };", memberExpr())); +} + +TEST(MemberExpression, MatchesStaticVariable) { + EXPECT_TRUE(matches("class Y { void x() { this->y; } static int y; };", + memberExpr())); + EXPECT_TRUE(notMatches("class Y { void x() { y; } static int y; };", + memberExpr())); + EXPECT_TRUE(notMatches("class Y { void x() { Y::y; } static int y; };", + memberExpr())); +} + + +TEST(Function, MatchesFunctionDeclarations) { + StatementMatcher CallFunctionF = callExpr(callee(functionDecl(hasName("f")))); + + EXPECT_TRUE(matches("void f() { f(); }", CallFunctionF)); + EXPECT_TRUE(notMatches("void f() { }", CallFunctionF)); + + if (llvm::Triple(llvm::sys::getDefaultTargetTriple()).getOS() != + llvm::Triple::Win32) { + // FIXME: Make this work for MSVC. + // Dependent contexts, but a non-dependent call. + EXPECT_TRUE(matches("void f(); template void g() { f(); }", + CallFunctionF)); + EXPECT_TRUE( + matches("void f(); template struct S { void g() { f(); } };", + CallFunctionF)); + } + + // Depedent calls don't match. + EXPECT_TRUE( + notMatches("void f(int); template void g(T t) { f(t); }", + CallFunctionF)); + EXPECT_TRUE( + notMatches("void f(int);" + "template struct S { void g(T t) { f(t); } };", + CallFunctionF)); + + EXPECT_TRUE(matches("void f(...);", functionDecl(isVariadic()))); + EXPECT_TRUE(notMatches("void f(int);", functionDecl(isVariadic()))); + EXPECT_TRUE(notMatches("template void f(Ts...);", + functionDecl(isVariadic()))); + EXPECT_TRUE(notMatches("void f();", functionDecl(isVariadic()))); + EXPECT_TRUE(notMatchesC("void f();", functionDecl(isVariadic()))); + EXPECT_TRUE(matches("void f(...);", functionDecl(parameterCountIs(0)))); + EXPECT_TRUE(matchesC("void f();", functionDecl(parameterCountIs(0)))); + EXPECT_TRUE(matches("void f(int, ...);", functionDecl(parameterCountIs(1)))); +} + +TEST(FunctionTemplate, MatchesFunctionTemplateDeclarations) { + EXPECT_TRUE( + matches("template void f(T t) {}", + functionTemplateDecl(hasName("f")))); +} + +TEST(FunctionTemplate, DoesNotMatchFunctionDeclarations) { + EXPECT_TRUE( + notMatches("void f(double d); void f(int t) {}", + functionTemplateDecl(hasName("f")))); +} + +TEST(FunctionTemplate, DoesNotMatchFunctionTemplateSpecializations) { + EXPECT_TRUE( + notMatches("void g(); template void f(T t) {}" + "template <> void f(int t) { g(); }", + functionTemplateDecl(hasName("f"), + hasDescendant(declRefExpr(to( + functionDecl(hasName("g")))))))); +} + +TEST(Matcher, MatchesClassTemplateSpecialization) { + EXPECT_TRUE(matches("template struct A {};" + "template<> struct A {};", + classTemplateSpecializationDecl())); + EXPECT_TRUE(matches("template struct A {}; A a;", + classTemplateSpecializationDecl())); + EXPECT_TRUE(notMatches("template struct A {};", + classTemplateSpecializationDecl())); +} + +TEST(DeclaratorDecl, MatchesDeclaratorDecls) { + EXPECT_TRUE(matches("int x;", declaratorDecl())); + EXPECT_TRUE(notMatches("class A {};", declaratorDecl())); +} + +TEST(ParmVarDecl, MatchesParmVars) { + EXPECT_TRUE(matches("void f(int x);", parmVarDecl())); + EXPECT_TRUE(notMatches("void f();", parmVarDecl())); +} + +TEST(Matcher, ConstructorCall) { + StatementMatcher Constructor = cxxConstructExpr(); + + EXPECT_TRUE( + matches("class X { public: X(); }; void x() { X x; }", Constructor)); + EXPECT_TRUE( + matches("class X { public: X(); }; void x() { X x = X(); }", + Constructor)); + EXPECT_TRUE( + matches("class X { public: X(int); }; void x() { X x = 0; }", + Constructor)); + EXPECT_TRUE(matches("class X {}; void x(int) { X x; }", Constructor)); +} + + +TEST(Matcher, ThisExpr) { + EXPECT_TRUE( + matches("struct X { int a; int f () { return a; } };", cxxThisExpr())); + EXPECT_TRUE( + notMatches("struct X { int f () { int a; return a; } };", cxxThisExpr())); +} + +TEST(Matcher, BindTemporaryExpression) { + StatementMatcher TempExpression = cxxBindTemporaryExpr(); + + std::string ClassString = "class string { public: string(); ~string(); }; "; + + EXPECT_TRUE( + matches(ClassString + + "string GetStringByValue();" + "void FunctionTakesString(string s);" + "void run() { FunctionTakesString(GetStringByValue()); }", + TempExpression)); + + EXPECT_TRUE( + notMatches(ClassString + + "string* GetStringPointer(); " + "void FunctionTakesStringPtr(string* s);" + "void run() {" + " string* s = GetStringPointer();" + " FunctionTakesStringPtr(GetStringPointer());" + " FunctionTakesStringPtr(s);" + "}", + TempExpression)); + + EXPECT_TRUE( + notMatches("class no_dtor {};" + "no_dtor GetObjByValue();" + "void ConsumeObj(no_dtor param);" + "void run() { ConsumeObj(GetObjByValue()); }", + TempExpression)); +} + +TEST(MaterializeTemporaryExpr, MatchesTemporary) { + std::string ClassString = + "class string { public: string(); int length(); }; "; + + EXPECT_TRUE( + matches(ClassString + + "string GetStringByValue();" + "void FunctionTakesString(string s);" + "void run() { FunctionTakesString(GetStringByValue()); }", + materializeTemporaryExpr())); + + EXPECT_TRUE( + notMatches(ClassString + + "string* GetStringPointer(); " + "void FunctionTakesStringPtr(string* s);" + "void run() {" + " string* s = GetStringPointer();" + " FunctionTakesStringPtr(GetStringPointer());" + " FunctionTakesStringPtr(s);" + "}", + materializeTemporaryExpr())); + + EXPECT_TRUE( + notMatches(ClassString + + "string GetStringByValue();" + "void run() { int k = GetStringByValue().length(); }", + materializeTemporaryExpr())); + + EXPECT_TRUE( + notMatches(ClassString + + "string GetStringByValue();" + "void run() { GetStringByValue(); }", + materializeTemporaryExpr())); +} + +TEST(Matcher, NewExpression) { + StatementMatcher New = cxxNewExpr(); + + EXPECT_TRUE(matches("class X { public: X(); }; void x() { new X; }", New)); + EXPECT_TRUE( + matches("class X { public: X(); }; void x() { new X(); }", New)); + EXPECT_TRUE( + matches("class X { public: X(int); }; void x() { new X(0); }", New)); + EXPECT_TRUE(matches("class X {}; void x(int) { new X; }", New)); +} + +TEST(Matcher, DeleteExpression) { + EXPECT_TRUE(matches("struct A {}; void f(A* a) { delete a; }", + cxxDeleteExpr())); +} + +TEST(Matcher, DefaultArgument) { + StatementMatcher Arg = cxxDefaultArgExpr(); + + EXPECT_TRUE(matches("void x(int, int = 0) { int y; x(y); }", Arg)); + EXPECT_TRUE( + matches("class X { void x(int, int = 0) { int y; x(y); } };", Arg)); + EXPECT_TRUE(notMatches("void x(int, int = 0) { int y; x(y, 0); }", Arg)); +} + +TEST(Matcher, StringLiterals) { + StatementMatcher Literal = stringLiteral(); + EXPECT_TRUE(matches("const char *s = \"string\";", Literal)); + // wide string + EXPECT_TRUE(matches("const wchar_t *s = L\"string\";", Literal)); + // with escaped characters + EXPECT_TRUE(matches("const char *s = \"\x05five\";", Literal)); + // no matching -- though the data type is the same, there is no string literal + EXPECT_TRUE(notMatches("const char s[1] = {'a'};", Literal)); +} + +TEST(Matcher, CharacterLiterals) { + StatementMatcher CharLiteral = characterLiteral(); + EXPECT_TRUE(matches("const char c = 'c';", CharLiteral)); + // wide character + EXPECT_TRUE(matches("const char c = L'c';", CharLiteral)); + // wide character, Hex encoded, NOT MATCHED! + EXPECT_TRUE(notMatches("const wchar_t c = 0x2126;", CharLiteral)); + EXPECT_TRUE(notMatches("const char c = 0x1;", CharLiteral)); +} + +TEST(Matcher, IntegerLiterals) { + StatementMatcher HasIntLiteral = integerLiteral(); + EXPECT_TRUE(matches("int i = 10;", HasIntLiteral)); + EXPECT_TRUE(matches("int i = 0x1AB;", HasIntLiteral)); + EXPECT_TRUE(matches("int i = 10L;", HasIntLiteral)); + EXPECT_TRUE(matches("int i = 10U;", HasIntLiteral)); + + // Non-matching cases (character literals, float and double) + EXPECT_TRUE(notMatches("int i = L'a';", + HasIntLiteral)); // this is actually a character + // literal cast to int + EXPECT_TRUE(notMatches("int i = 'a';", HasIntLiteral)); + EXPECT_TRUE(notMatches("int i = 1e10;", HasIntLiteral)); + EXPECT_TRUE(notMatches("int i = 10.0;", HasIntLiteral)); +} + +TEST(Matcher, FloatLiterals) { + StatementMatcher HasFloatLiteral = floatLiteral(); + EXPECT_TRUE(matches("float i = 10.0;", HasFloatLiteral)); + EXPECT_TRUE(matches("float i = 10.0f;", HasFloatLiteral)); + EXPECT_TRUE(matches("double i = 10.0;", HasFloatLiteral)); + EXPECT_TRUE(matches("double i = 10.0L;", HasFloatLiteral)); + EXPECT_TRUE(matches("double i = 1e10;", HasFloatLiteral)); + EXPECT_TRUE(matches("double i = 5.0;", floatLiteral(equals(5.0)))); + EXPECT_TRUE(matches("double i = 5.0;", floatLiteral(equals(5.0f)))); + EXPECT_TRUE( + matches("double i = 5.0;", floatLiteral(equals(llvm::APFloat(5.0))))); + + EXPECT_TRUE(notMatches("float i = 10;", HasFloatLiteral)); + EXPECT_TRUE(notMatches("double i = 5.0;", floatLiteral(equals(6.0)))); + EXPECT_TRUE(notMatches("double i = 5.0;", floatLiteral(equals(6.0f)))); + EXPECT_TRUE( + notMatches("double i = 5.0;", floatLiteral(equals(llvm::APFloat(6.0))))); +} + +TEST(Matcher, NullPtrLiteral) { + EXPECT_TRUE(matches("int* i = nullptr;", cxxNullPtrLiteralExpr())); +} + +TEST(Matcher, GNUNullExpr) { + EXPECT_TRUE(matches("int* i = __null;", gnuNullExpr())); +} + +TEST(Matcher, AtomicExpr) { + EXPECT_TRUE(matches("void foo() { int *ptr; __atomic_load_n(ptr, 1); }", + atomicExpr())); +} + +TEST(Matcher, Initializers) { + const char *ToMatch = "void foo() { struct point { double x; double y; };" + " struct point ptarray[10] = " + " { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; }"; + EXPECT_TRUE(matchesConditionally( + ToMatch, + initListExpr( + has( + cxxConstructExpr( + requiresZeroInitialization())), + has( + initListExpr( + hasType(asString("struct point")), + has(floatLiteral(equals(1.0))), + has(implicitValueInitExpr( + hasType(asString("double")))))), + has( + initListExpr( + hasType(asString("struct point")), + has(floatLiteral(equals(2.0))), + has(floatLiteral(equals(1.0))))) + ), true, "-std=gnu++98")); + + EXPECT_TRUE(matchesC99(ToMatch, + initListExpr( + hasSyntacticForm( + initListExpr( + has( + designatedInitExpr( + designatorCountIs(2), + has(floatLiteral( + equals(1.0))), + has(integerLiteral( + equals(2))))), + has( + designatedInitExpr( + designatorCountIs(2), + has(floatLiteral( + equals(2.0))), + has(integerLiteral( + equals(2))))), + has( + designatedInitExpr( + designatorCountIs(2), + has(floatLiteral( + equals(1.0))), + has(integerLiteral( + equals(0))))) + ))))); +} + +TEST(Matcher, ParenListExpr) { + EXPECT_TRUE( + matches("template class foo { void bar() { foo X(*this); } };" + "template class foo;", + varDecl(hasInitializer(parenListExpr(has(unaryOperator())))))); +} + +TEST(Matcher, StmtExpr) { + EXPECT_TRUE(matches("void declToImport() { int C = ({int X=4; X;}); }", + varDecl(hasInitializer(stmtExpr())))); +} + +TEST(Matcher, ImportPredefinedExpr) { + // __func__ expands as StringLiteral("foo") + EXPECT_TRUE(matches("void foo() { __func__; }", + predefinedExpr( + hasType(asString("const char [4]")), + has(stringLiteral())))); +} + +TEST(Matcher, AsmStatement) { + EXPECT_TRUE(matches("void foo() { __asm(\"mov al, 2\"); }", asmStmt())); +} + +TEST(Matcher, Conditions) { + StatementMatcher Condition = + ifStmt(hasCondition(cxxBoolLiteral(equals(true)))); + + EXPECT_TRUE(matches("void x() { if (true) {} }", Condition)); + EXPECT_TRUE(notMatches("void x() { if (false) {} }", Condition)); + EXPECT_TRUE(notMatches("void x() { bool a = true; if (a) {} }", Condition)); + EXPECT_TRUE(notMatches("void x() { if (true || false) {} }", Condition)); + EXPECT_TRUE(notMatches("void x() { if (1) {} }", Condition)); +} + +TEST(Matcher, ConditionalOperator) { + StatementMatcher Conditional = conditionalOperator( + hasCondition(cxxBoolLiteral(equals(true))), + hasTrueExpression(cxxBoolLiteral(equals(false)))); + + EXPECT_TRUE(matches("void x() { true ? false : true; }", Conditional)); + EXPECT_TRUE(notMatches("void x() { false ? false : true; }", Conditional)); + EXPECT_TRUE(notMatches("void x() { true ? true : false; }", Conditional)); + + StatementMatcher ConditionalFalse = conditionalOperator( + hasFalseExpression(cxxBoolLiteral(equals(false)))); + + EXPECT_TRUE(matches("void x() { true ? true : false; }", ConditionalFalse)); + EXPECT_TRUE( + notMatches("void x() { true ? false : true; }", ConditionalFalse)); + + EXPECT_TRUE(matches("void x() { true ? true : false; }", ConditionalFalse)); + EXPECT_TRUE( + notMatches("void x() { true ? false : true; }", ConditionalFalse)); +} + +TEST(Matcher, BinaryConditionalOperator) { + StatementMatcher AlwaysOne = binaryConditionalOperator( + hasCondition(implicitCastExpr( + has( + opaqueValueExpr( + hasSourceExpression((integerLiteral(equals(1)))))))), + hasFalseExpression(integerLiteral(equals(0)))); + + EXPECT_TRUE(matches("void x() { 1 ?: 0; }", AlwaysOne)); + + StatementMatcher FourNotFive = binaryConditionalOperator( + hasTrueExpression(opaqueValueExpr( + hasSourceExpression((integerLiteral(equals(4)))))), + hasFalseExpression(integerLiteral(equals(5)))); + + EXPECT_TRUE(matches("void x() { 4 ?: 5; }", FourNotFive)); +} + +TEST(ArraySubscriptMatchers, ArraySubscripts) { + EXPECT_TRUE(matches("int i[2]; void f() { i[1] = 1; }", + arraySubscriptExpr())); + EXPECT_TRUE(notMatches("int i; void f() { i = 1; }", + arraySubscriptExpr())); +} + +TEST(For, FindsForLoops) { + EXPECT_TRUE(matches("void f() { for(;;); }", forStmt())); + EXPECT_TRUE(matches("void f() { if(true) for(;;); }", forStmt())); + EXPECT_TRUE(notMatches("int as[] = { 1, 2, 3 };" + "void f() { for (auto &a : as); }", + forStmt())); +} + +TEST(For, ReportsNoFalsePositives) { + EXPECT_TRUE(notMatches("void f() { ; }", forStmt())); + EXPECT_TRUE(notMatches("void f() { if(true); }", forStmt())); +} + +TEST(CompoundStatement, HandlesSimpleCases) { + EXPECT_TRUE(notMatches("void f();", compoundStmt())); + EXPECT_TRUE(matches("void f() {}", compoundStmt())); + EXPECT_TRUE(matches("void f() {{}}", compoundStmt())); +} + +TEST(CompoundStatement, DoesNotMatchEmptyStruct) { + // It's not a compound statement just because there's "{}" in the source + // text. This is an AST search, not grep. + EXPECT_TRUE(notMatches("namespace n { struct S {}; }", + compoundStmt())); + EXPECT_TRUE(matches("namespace n { struct S { void f() {{}} }; }", + compoundStmt())); +} + +TEST(CastExpression, MatchesExplicitCasts) { + EXPECT_TRUE(matches("char *p = reinterpret_cast(&p);",castExpr())); + EXPECT_TRUE(matches("void *p = (void *)(&p);", castExpr())); + EXPECT_TRUE(matches("char q, *p = const_cast(&q);", castExpr())); + EXPECT_TRUE(matches("char c = char(0);", castExpr())); +} +TEST(CastExpression, MatchesImplicitCasts) { + // This test creates an implicit cast from int to char. + EXPECT_TRUE(matches("char c = 0;", castExpr())); + // This test creates an implicit cast from lvalue to rvalue. + EXPECT_TRUE(matches("char c = 0, d = c;", castExpr())); +} + +TEST(CastExpression, DoesNotMatchNonCasts) { + EXPECT_TRUE(notMatches("char c = '0';", castExpr())); + EXPECT_TRUE(notMatches("char c, &q = c;", castExpr())); + EXPECT_TRUE(notMatches("int i = (0);", castExpr())); + EXPECT_TRUE(notMatches("int i = 0;", castExpr())); +} + +TEST(ReinterpretCast, MatchesSimpleCase) { + EXPECT_TRUE(matches("char* p = reinterpret_cast(&p);", + cxxReinterpretCastExpr())); +} + +TEST(ReinterpretCast, DoesNotMatchOtherCasts) { + EXPECT_TRUE(notMatches("char* p = (char*)(&p);", cxxReinterpretCastExpr())); + EXPECT_TRUE(notMatches("char q, *p = const_cast(&q);", + cxxReinterpretCastExpr())); + EXPECT_TRUE(notMatches("void* p = static_cast(&p);", + cxxReinterpretCastExpr())); + EXPECT_TRUE(notMatches("struct B { virtual ~B() {} }; struct D : B {};" + "B b;" + "D* p = dynamic_cast(&b);", + cxxReinterpretCastExpr())); +} + +TEST(FunctionalCast, MatchesSimpleCase) { + std::string foo_class = "class Foo { public: Foo(const char*); };"; + EXPECT_TRUE(matches(foo_class + "void r() { Foo f = Foo(\"hello world\"); }", + cxxFunctionalCastExpr())); +} + +TEST(FunctionalCast, DoesNotMatchOtherCasts) { + std::string FooClass = "class Foo { public: Foo(const char*); };"; + EXPECT_TRUE( + notMatches(FooClass + "void r() { Foo f = (Foo) \"hello world\"; }", + cxxFunctionalCastExpr())); + EXPECT_TRUE( + notMatches(FooClass + "void r() { Foo f = \"hello world\"; }", + cxxFunctionalCastExpr())); +} + +TEST(DynamicCast, MatchesSimpleCase) { + EXPECT_TRUE(matches("struct B { virtual ~B() {} }; struct D : B {};" + "B b;" + "D* p = dynamic_cast(&b);", + cxxDynamicCastExpr())); +} + +TEST(StaticCast, MatchesSimpleCase) { + EXPECT_TRUE(matches("void* p(static_cast(&p));", + cxxStaticCastExpr())); +} + +TEST(StaticCast, DoesNotMatchOtherCasts) { + EXPECT_TRUE(notMatches("char* p = (char*)(&p);", cxxStaticCastExpr())); + EXPECT_TRUE(notMatches("char q, *p = const_cast(&q);", + cxxStaticCastExpr())); + EXPECT_TRUE(notMatches("void* p = reinterpret_cast(&p);", + cxxStaticCastExpr())); + EXPECT_TRUE(notMatches("struct B { virtual ~B() {} }; struct D : B {};" + "B b;" + "D* p = dynamic_cast(&b);", + cxxStaticCastExpr())); +} + +TEST(CStyleCast, MatchesSimpleCase) { + EXPECT_TRUE(matches("int i = (int) 2.2f;", cStyleCastExpr())); +} + +TEST(CStyleCast, DoesNotMatchOtherCasts) { + EXPECT_TRUE(notMatches("char* p = static_cast(0);" + "char q, *r = const_cast(&q);" + "void* s = reinterpret_cast(&s);" + "struct B { virtual ~B() {} }; struct D : B {};" + "B b;" + "D* t = dynamic_cast(&b);", + cStyleCastExpr())); +} + +TEST(ImplicitCast, MatchesSimpleCase) { + // This test creates an implicit const cast. + EXPECT_TRUE(matches("int x = 0; const int y = x;", + varDecl(hasInitializer(implicitCastExpr())))); + // This test creates an implicit cast from int to char. + EXPECT_TRUE(matches("char c = 0;", + varDecl(hasInitializer(implicitCastExpr())))); + // This test creates an implicit array-to-pointer cast. + EXPECT_TRUE(matches("int arr[6]; int *p = arr;", + varDecl(hasInitializer(implicitCastExpr())))); +} + +TEST(ImplicitCast, DoesNotMatchIncorrectly) { + // This test verifies that implicitCastExpr() matches exactly when implicit casts + // are present, and that it ignores explicit and paren casts. + + // These two test cases have no casts. + EXPECT_TRUE(notMatches("int x = 0;", + varDecl(hasInitializer(implicitCastExpr())))); + EXPECT_TRUE(notMatches("int x = 0, &y = x;", + varDecl(hasInitializer(implicitCastExpr())))); + + EXPECT_TRUE(notMatches("int x = 0; double d = (double) x;", + varDecl(hasInitializer(implicitCastExpr())))); + EXPECT_TRUE(notMatches("const int *p; int *q = const_cast(p);", + varDecl(hasInitializer(implicitCastExpr())))); + + EXPECT_TRUE(notMatches("int x = (0);", + varDecl(hasInitializer(implicitCastExpr())))); +} + +TEST(Statement, DoesNotMatchDeclarations) { + EXPECT_TRUE(notMatches("class X {};", stmt())); +} + +TEST(Statement, MatchesCompoundStatments) { + EXPECT_TRUE(matches("void x() {}", stmt())); +} + +TEST(DeclarationStatement, DoesNotMatchCompoundStatements) { + EXPECT_TRUE(notMatches("void x() {}", declStmt())); +} + +TEST(DeclarationStatement, MatchesVariableDeclarationStatements) { + EXPECT_TRUE(matches("void x() { int a; }", declStmt())); +} + +TEST(ExprWithCleanups, MatchesExprWithCleanups) { + EXPECT_TRUE(matches("struct Foo { ~Foo(); };" + "const Foo f = Foo();", + varDecl(hasInitializer(exprWithCleanups())))); + EXPECT_FALSE(matches("struct Foo { };" + "const Foo f = Foo();", + varDecl(hasInitializer(exprWithCleanups())))); +} + +TEST(InitListExpression, MatchesInitListExpression) { + EXPECT_TRUE(matches("int a[] = { 1, 2 };", + initListExpr(hasType(asString("int [2]"))))); + EXPECT_TRUE(matches("struct B { int x, y; }; B b = { 5, 6 };", + initListExpr(hasType(recordDecl(hasName("B")))))); + EXPECT_TRUE(matches("struct S { S(void (*a)()); };" + "void f();" + "S s[1] = { &f };", + declRefExpr(to(functionDecl(hasName("f")))))); + EXPECT_TRUE( + matches("int i[1] = {42, [0] = 43};", integerLiteral(equals(42)))); +} + +TEST(UsingDeclaration, MatchesUsingDeclarations) { + EXPECT_TRUE(matches("namespace X { int x; } using X::x;", + usingDecl())); +} + +TEST(UsingDeclaration, MatchesShadowUsingDelcarations) { + EXPECT_TRUE(matches("namespace f { int a; } using f::a;", + usingDecl(hasAnyUsingShadowDecl(hasName("a"))))); +} + +TEST(UsingDirectiveDeclaration, MatchesUsingNamespace) { + EXPECT_TRUE(matches("namespace X { int x; } using namespace X;", + usingDirectiveDecl())); + EXPECT_FALSE( + matches("namespace X { int x; } using X::x;", usingDirectiveDecl())); +} + + +TEST(While, MatchesWhileLoops) { + EXPECT_TRUE(notMatches("void x() {}", whileStmt())); + EXPECT_TRUE(matches("void x() { while(true); }", whileStmt())); + EXPECT_TRUE(notMatches("void x() { do {} while(true); }", whileStmt())); +} + +TEST(Do, MatchesDoLoops) { + EXPECT_TRUE(matches("void x() { do {} while(true); }", doStmt())); + EXPECT_TRUE(matches("void x() { do ; while(false); }", doStmt())); +} + +TEST(Do, DoesNotMatchWhileLoops) { + EXPECT_TRUE(notMatches("void x() { while(true) {} }", doStmt())); +} + +TEST(SwitchCase, MatchesCase) { + EXPECT_TRUE(matches("void x() { switch(42) { case 42:; } }", switchCase())); + EXPECT_TRUE(matches("void x() { switch(42) { default:; } }", switchCase())); + EXPECT_TRUE(matches("void x() { switch(42) default:; }", switchCase())); + EXPECT_TRUE(notMatches("void x() { switch(42) {} }", switchCase())); +} + +TEST(SwitchCase, MatchesSwitch) { + EXPECT_TRUE(matches("void x() { switch(42) { case 42:; } }", switchStmt())); + EXPECT_TRUE(matches("void x() { switch(42) { default:; } }", switchStmt())); + EXPECT_TRUE(matches("void x() { switch(42) default:; }", switchStmt())); + EXPECT_TRUE(notMatches("void x() {}", switchStmt())); +} + +TEST(ExceptionHandling, SimpleCases) { + EXPECT_TRUE(matches("void foo() try { } catch(int X) { }", cxxCatchStmt())); + EXPECT_TRUE(matches("void foo() try { } catch(int X) { }", cxxTryStmt())); + EXPECT_TRUE( + notMatches("void foo() try { } catch(int X) { }", cxxThrowExpr())); + EXPECT_TRUE(matches("void foo() try { throw; } catch(int X) { }", + cxxThrowExpr())); + EXPECT_TRUE(matches("void foo() try { throw 5;} catch(int X) { }", + cxxThrowExpr())); + EXPECT_TRUE(matches("void foo() try { throw; } catch(...) { }", + cxxCatchStmt(isCatchAll()))); + EXPECT_TRUE(notMatches("void foo() try { throw; } catch(int) { }", + cxxCatchStmt(isCatchAll()))); + EXPECT_TRUE(matches("void foo() try {} catch(int X) { }", + varDecl(isExceptionVariable()))); + EXPECT_TRUE(notMatches("void foo() try { int X; } catch (...) { }", + varDecl(isExceptionVariable()))); +} + +TEST(ParenExpression, SimpleCases) { + EXPECT_TRUE(matches("int i = (3);", parenExpr())); + EXPECT_TRUE(matches("int i = (3 + 7);", parenExpr())); + EXPECT_TRUE(notMatches("int i = 3;", parenExpr())); + EXPECT_TRUE(notMatches("int foo() { return 1; }; int a = foo();", + parenExpr())); +} + +TEST(TypeMatching, MatchesTypes) { + EXPECT_TRUE(matches("struct S {};", qualType().bind("loc"))); +} + +TEST(TypeMatching, MatchesConstantArrayTypes) { + EXPECT_TRUE(matches("int a[2];", constantArrayType())); + EXPECT_TRUE(notMatches( + "void f() { int a[] = { 2, 3 }; int b[a[0]]; }", + constantArrayType(hasElementType(builtinType())))); + + EXPECT_TRUE(matches("int a[42];", constantArrayType(hasSize(42)))); + EXPECT_TRUE(matches("int b[2*21];", constantArrayType(hasSize(42)))); + EXPECT_TRUE(notMatches("int c[41], d[43];", constantArrayType(hasSize(42)))); +} + +TEST(TypeMatching, MatchesDependentSizedArrayTypes) { + EXPECT_TRUE(matches( + "template class array { T data[Size]; };", + dependentSizedArrayType())); + EXPECT_TRUE(notMatches( + "int a[42]; int b[] = { 2, 3 }; void f() { int c[b[0]]; }", + dependentSizedArrayType())); +} + +TEST(TypeMatching, MatchesIncompleteArrayType) { + EXPECT_TRUE(matches("int a[] = { 2, 3 };", incompleteArrayType())); + EXPECT_TRUE(matches("void f(int a[]) {}", incompleteArrayType())); + + EXPECT_TRUE(notMatches("int a[42]; void f() { int b[a[0]]; }", + incompleteArrayType())); +} + +TEST(TypeMatching, MatchesVariableArrayType) { + EXPECT_TRUE(matches("void f(int b) { int a[b]; }", variableArrayType())); + EXPECT_TRUE(notMatches("int a[] = {2, 3}; int b[42];", variableArrayType())); + + EXPECT_TRUE(matches( + "void f(int b) { int a[b]; }", + variableArrayType(hasSizeExpr(ignoringImpCasts(declRefExpr(to( + varDecl(hasName("b"))))))))); +} + + +TEST(TypeMatching, MatchesAtomicTypes) { + if (llvm::Triple(llvm::sys::getDefaultTargetTriple()).getOS() != + llvm::Triple::Win32) { + // FIXME: Make this work for MSVC. + EXPECT_TRUE(matches("_Atomic(int) i;", atomicType())); + + EXPECT_TRUE(matches("_Atomic(int) i;", + atomicType(hasValueType(isInteger())))); + EXPECT_TRUE(notMatches("_Atomic(float) f;", + atomicType(hasValueType(isInteger())))); + } +} + +TEST(TypeMatching, MatchesAutoTypes) { + EXPECT_TRUE(matches("auto i = 2;", autoType())); + EXPECT_TRUE(matches("int v[] = { 2, 3 }; void f() { for (int i : v) {} }", + autoType())); + + // FIXME: Matching against the type-as-written can't work here, because the + // type as written was not deduced. + //EXPECT_TRUE(matches("auto a = 1;", + // autoType(hasDeducedType(isInteger())))); + //EXPECT_TRUE(notMatches("auto b = 2.0;", + // autoType(hasDeducedType(isInteger())))); +} + +TEST(TypeMatching, MatchesFunctionTypes) { + EXPECT_TRUE(matches("int (*f)(int);", functionType())); + EXPECT_TRUE(matches("void f(int i) {}", functionType())); +} + +TEST(TypeMatching, MatchesFunctionProtoTypes) { + EXPECT_TRUE(matches("int (*f)(int);", functionProtoType())); + EXPECT_TRUE(matches("void f(int i);", functionProtoType())); + EXPECT_TRUE(matches("void f();", functionProtoType(parameterCountIs(0)))); + EXPECT_TRUE(notMatchesC("void f();", functionProtoType())); + EXPECT_TRUE( + matchesC("void f(void);", functionProtoType(parameterCountIs(0)))); +} + +TEST(TypeMatching, MatchesParenType) { + EXPECT_TRUE( + matches("int (*array)[4];", varDecl(hasType(pointsTo(parenType()))))); + EXPECT_TRUE(notMatches("int *array[4];", varDecl(hasType(parenType())))); + + EXPECT_TRUE(matches( + "int (*ptr_to_func)(int);", + varDecl(hasType(pointsTo(parenType(innerType(functionType()))))))); + EXPECT_TRUE(notMatches( + "int (*ptr_to_array)[4];", + varDecl(hasType(pointsTo(parenType(innerType(functionType()))))))); +} + +TEST(TypeMatching, PointerTypes) { + // FIXME: Reactive when these tests can be more specific (not matching + // implicit code on certain platforms), likely when we have hasDescendant for + // Types/TypeLocs. + //EXPECT_TRUE(matchAndVerifyResultTrue( + // "int* a;", + // pointerTypeLoc(pointeeLoc(typeLoc().bind("loc"))), + // llvm::make_unique>("loc", 1))); + //EXPECT_TRUE(matchAndVerifyResultTrue( + // "int* a;", + // pointerTypeLoc().bind("loc"), + // llvm::make_unique>("loc", 1))); + EXPECT_TRUE(matches( + "int** a;", + loc(pointerType(pointee(qualType()))))); + EXPECT_TRUE(matches( + "int** a;", + loc(pointerType(pointee(pointerType()))))); + EXPECT_TRUE(matches( + "int* b; int* * const a = &b;", + loc(qualType(isConstQualified(), pointerType())))); + + std::string Fragment = "struct A { int i; }; int A::* ptr = &A::i;"; + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), + hasType(blockPointerType())))); + EXPECT_TRUE(matches(Fragment, varDecl(hasName("ptr"), + hasType(memberPointerType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), + hasType(pointerType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), + hasType(referenceType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), + hasType(lValueReferenceType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), + hasType(rValueReferenceType())))); + + Fragment = "int *ptr;"; + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), + hasType(blockPointerType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), + hasType(memberPointerType())))); + EXPECT_TRUE(matches(Fragment, varDecl(hasName("ptr"), + hasType(pointerType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ptr"), + hasType(referenceType())))); + + Fragment = "int a; int &ref = a;"; + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), + hasType(blockPointerType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), + hasType(memberPointerType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), + hasType(pointerType())))); + EXPECT_TRUE(matches(Fragment, varDecl(hasName("ref"), + hasType(referenceType())))); + EXPECT_TRUE(matches(Fragment, varDecl(hasName("ref"), + hasType(lValueReferenceType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), + hasType(rValueReferenceType())))); + + Fragment = "int &&ref = 2;"; + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), + hasType(blockPointerType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), + hasType(memberPointerType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), + hasType(pointerType())))); + EXPECT_TRUE(matches(Fragment, varDecl(hasName("ref"), + hasType(referenceType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("ref"), + hasType(lValueReferenceType())))); + EXPECT_TRUE(matches(Fragment, varDecl(hasName("ref"), + hasType(rValueReferenceType())))); +} + +TEST(TypeMatching, AutoRefTypes) { + std::string Fragment = "auto a = 1;" + "auto b = a;" + "auto &c = a;" + "auto &&d = c;" + "auto &&e = 2;"; + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("a"), + hasType(referenceType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("b"), + hasType(referenceType())))); + EXPECT_TRUE(matches(Fragment, varDecl(hasName("c"), + hasType(referenceType())))); + EXPECT_TRUE(matches(Fragment, varDecl(hasName("c"), + hasType(lValueReferenceType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("c"), + hasType(rValueReferenceType())))); + EXPECT_TRUE(matches(Fragment, varDecl(hasName("d"), + hasType(referenceType())))); + EXPECT_TRUE(matches(Fragment, varDecl(hasName("d"), + hasType(lValueReferenceType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("d"), + hasType(rValueReferenceType())))); + EXPECT_TRUE(matches(Fragment, varDecl(hasName("e"), + hasType(referenceType())))); + EXPECT_TRUE(notMatches(Fragment, varDecl(hasName("e"), + hasType(lValueReferenceType())))); + EXPECT_TRUE(matches(Fragment, varDecl(hasName("e"), + hasType(rValueReferenceType())))); +} + +TEST(TypeMatching, MatchesPointersToConstTypes) { + EXPECT_TRUE(matches("int b; int * const a = &b;", + loc(pointerType()))); + EXPECT_TRUE(matches("int b; int * const a = &b;", + loc(pointerType()))); + EXPECT_TRUE(matches( + "int b; const int * a = &b;", + loc(pointerType(pointee(builtinType()))))); + EXPECT_TRUE(matches( + "int b; const int * a = &b;", + pointerType(pointee(builtinType())))); +} + +TEST(TypeMatching, MatchesTypedefTypes) { + EXPECT_TRUE(matches("typedef int X; X a;", varDecl(hasName("a"), + hasType(typedefType())))); +} + +TEST(TypeMatching, MatchesTemplateSpecializationType) { + EXPECT_TRUE(matches("template class A{}; A a;", + templateSpecializationType())); +} + +TEST(TypeMatching, MatchesRecordType) { + EXPECT_TRUE(matches("class C{}; C c;", recordType())); + EXPECT_TRUE(matches("struct S{}; S s;", + recordType(hasDeclaration(recordDecl(hasName("S")))))); + EXPECT_TRUE(notMatches("int i;", + recordType(hasDeclaration(recordDecl(hasName("S")))))); +} + +TEST(TypeMatching, MatchesElaboratedType) { + EXPECT_TRUE(matches( + "namespace N {" + " namespace M {" + " class D {};" + " }" + "}" + "N::M::D d;", elaboratedType())); + EXPECT_TRUE(matches("class C {} c;", elaboratedType())); + EXPECT_TRUE(notMatches("class C {}; C c;", elaboratedType())); +} + +TEST(TypeMatching, MatchesSubstTemplateTypeParmType) { + const std::string code = "template " + "int F() {" + " return 1 + T();" + "}" + "int i = F();"; + EXPECT_FALSE(matches(code, binaryOperator(hasLHS( + expr(hasType(substTemplateTypeParmType())))))); + EXPECT_TRUE(matches(code, binaryOperator(hasRHS( + expr(hasType(substTemplateTypeParmType())))))); +} + +TEST(NNS, MatchesNestedNameSpecifiers) { + EXPECT_TRUE(matches("namespace ns { struct A {}; } ns::A a;", + nestedNameSpecifier())); + EXPECT_TRUE(matches("template class A { typename T::B b; };", + nestedNameSpecifier())); + EXPECT_TRUE(matches("struct A { void f(); }; void A::f() {}", + nestedNameSpecifier())); + EXPECT_TRUE(matches("namespace a { namespace b {} } namespace ab = a::b;", + nestedNameSpecifier())); + + EXPECT_TRUE(matches( + "struct A { static void f() {} }; void g() { A::f(); }", + nestedNameSpecifier())); + EXPECT_TRUE(notMatches( + "struct A { static void f() {} }; void g(A* a) { a->f(); }", + nestedNameSpecifier())); +} + +TEST(NullStatement, SimpleCases) { + EXPECT_TRUE(matches("void f() {int i;;}", nullStmt())); + EXPECT_TRUE(notMatches("void f() {int i;}", nullStmt())); +} + +TEST(NS, Alias) { + EXPECT_TRUE(matches("namespace test {} namespace alias = ::test;", + namespaceAliasDecl(hasName("alias")))); +} + +TEST(NNS, MatchesTypes) { + NestedNameSpecifierMatcher Matcher = nestedNameSpecifier( + specifiesType(hasDeclaration(recordDecl(hasName("A"))))); + EXPECT_TRUE(matches("struct A { struct B {}; }; A::B b;", Matcher)); + EXPECT_TRUE(matches("struct A { struct B { struct C {}; }; }; A::B::C c;", + Matcher)); + EXPECT_TRUE(notMatches("namespace A { struct B {}; } A::B b;", Matcher)); +} + +TEST(NNS, MatchesNamespaceDecls) { + NestedNameSpecifierMatcher Matcher = nestedNameSpecifier( + specifiesNamespace(hasName("ns"))); + EXPECT_TRUE(matches("namespace ns { struct A {}; } ns::A a;", Matcher)); + EXPECT_TRUE(notMatches("namespace xx { struct A {}; } xx::A a;", Matcher)); + EXPECT_TRUE(notMatches("struct ns { struct A {}; }; ns::A a;", Matcher)); +} + +TEST(NNS, MatchesNestedNameSpecifierPrefixes) { + EXPECT_TRUE(matches( + "struct A { struct B { struct C {}; }; }; A::B::C c;", + nestedNameSpecifier(hasPrefix(specifiesType(asString("struct A")))))); + EXPECT_TRUE(matches( + "struct A { struct B { struct C {}; }; }; A::B::C c;", + nestedNameSpecifierLoc(hasPrefix( + specifiesTypeLoc(loc(qualType(asString("struct A")))))))); +} + + +template +class VerifyAncestorHasChildIsEqual : public BoundNodesCallback { +public: + bool run(const BoundNodes *Nodes) override { return false; } + + bool run(const BoundNodes *Nodes, ASTContext *Context) override { + const T *Node = Nodes->getNodeAs(""); + return verify(*Nodes, *Context, Node); + } + + bool verify(const BoundNodes &Nodes, ASTContext &Context, const Stmt *Node) { + // Use the original typed pointer to verify we can pass pointers to subtypes + // to equalsNode. + const T *TypedNode = cast(Node); + return selectFirst( + "", match(stmt(hasParent( + stmt(has(stmt(equalsNode(TypedNode)))).bind(""))), + *Node, Context)) != nullptr; + } + bool verify(const BoundNodes &Nodes, ASTContext &Context, const Decl *Node) { + // Use the original typed pointer to verify we can pass pointers to subtypes + // to equalsNode. + const T *TypedNode = cast(Node); + return selectFirst( + "", match(decl(hasParent( + decl(has(decl(equalsNode(TypedNode)))).bind(""))), + *Node, Context)) != nullptr; + } + bool verify(const BoundNodes &Nodes, ASTContext &Context, const Type *Node) { + // Use the original typed pointer to verify we can pass pointers to subtypes + // to equalsNode. + const T *TypedNode = cast(Node); + const auto *Dec = Nodes.getNodeAs("decl"); + return selectFirst( + "", match(fieldDecl(hasParent(decl(has(fieldDecl( + hasType(type(equalsNode(TypedNode)).bind(""))))))), + *Dec, Context)) != nullptr; + } +}; + +TEST(IsEqualTo, MatchesNodesByIdentity) { + EXPECT_TRUE(matchAndVerifyResultTrue( + "class X { class Y {}; };", recordDecl(hasName("::X::Y")).bind(""), + llvm::make_unique>())); + EXPECT_TRUE(matchAndVerifyResultTrue( + "void f() { if (true) if(true) {} }", ifStmt().bind(""), + llvm::make_unique>())); + EXPECT_TRUE(matchAndVerifyResultTrue( + "class X { class Y {} y; };", + fieldDecl(hasName("y"), hasType(type().bind(""))).bind("decl"), + llvm::make_unique>())); +} + +TEST(TypedefDeclMatcher, Match) { + EXPECT_TRUE(matches("typedef int typedefDeclTest;", + typedefDecl(hasName("typedefDeclTest")))); + EXPECT_TRUE(notMatches("using typedefDeclTest2 = int;", + typedefDecl(hasName("typedefDeclTest2")))); +} + +TEST(TypeAliasDeclMatcher, Match) { + EXPECT_TRUE(matches("using typeAliasTest2 = int;", + typeAliasDecl(hasName("typeAliasTest2")))); + EXPECT_TRUE(notMatches("typedef int typeAliasTest;", + typeAliasDecl(hasName("typeAliasTest")))); +} + +TEST(TypedefNameDeclMatcher, Match) { + EXPECT_TRUE(matches("typedef int typedefNameDeclTest1;", + typedefNameDecl(hasName("typedefNameDeclTest1")))); + EXPECT_TRUE(matches("using typedefNameDeclTest2 = int;", + typedefNameDecl(hasName("typedefNameDeclTest2")))); +} + +TEST(ObjCMessageExprMatcher, SimpleExprs) { + // don't find ObjCMessageExpr where none are present + EXPECT_TRUE(notMatchesObjC("", objcMessageExpr(anything()))); + + std::string Objc1String = + "@interface Str " + " - (Str *)uppercaseString:(Str *)str;" + "@end " + "@interface foo " + "- (void)meth:(Str *)text;" + "@end " + " " + "@implementation foo " + "- (void) meth:(Str *)text { " + " [self contents];" + " Str *up = [text uppercaseString];" + "} " + "@end "; + EXPECT_TRUE(matchesObjC( + Objc1String, + objcMessageExpr(anything()))); + EXPECT_TRUE(matchesObjC( + Objc1String, + objcMessageExpr(hasSelector("contents")))); + EXPECT_TRUE(matchesObjC( + Objc1String, + objcMessageExpr(matchesSelector("cont*")))); + EXPECT_FALSE(matchesObjC( + Objc1String, + objcMessageExpr(matchesSelector("?cont*")))); + EXPECT_TRUE(notMatchesObjC( + Objc1String, + objcMessageExpr(hasSelector("contents"), hasNullSelector()))); + EXPECT_TRUE(matchesObjC( + Objc1String, + objcMessageExpr(hasSelector("contents"), hasUnarySelector()))); + EXPECT_TRUE(matchesObjC( + Objc1String, + objcMessageExpr(hasSelector("contents"), numSelectorArgs(0)))); + EXPECT_TRUE(matchesObjC( + Objc1String, + objcMessageExpr(matchesSelector("uppercase*"), + argumentCountIs(0) + ))); +} + +} // namespace ast_matchers +} // namespace clang