Index: docs/LibASTMatchersReference.html =================================================================== --- docs/LibASTMatchersReference.html +++ docs/LibASTMatchersReference.html @@ -1061,6 +1061,14 @@ [[NSString alloc] initWithString:@"Hello"] +Matcher<Stmt>parenExprMatcher<ParenExpr>... +
Matches parentheses used in expressions.
+
+Given
+  int foo() { return 1; }
+  int a = (foo() + 1);
+matches '(foo() + 1)'
+
Matcher<Stmt>returnStmtMatcher<ReturnStmt>...
Matches return statements.
Index: include/clang/ASTMatchers/ASTMatchers.h
===================================================================
--- include/clang/ASTMatchers/ASTMatchers.h
+++ include/clang/ASTMatchers/ASTMatchers.h
@@ -1048,6 +1048,17 @@
   Decl,
   UnresolvedUsingTypenameDecl> unresolvedUsingTypenameDecl;
 
+/// \brief Matches parentheses used in expressions.
+//
+// Example matches (foo() + 1)
+// \code
+//   int foo() { return 1; }
+//   int a = (foo() + 1);
+// \endcode
+const internal::VariadicDynCastAllOfMatcher<
+  Stmt,
+  ParenExpr> parenExpr;
+
 /// \brief Matches constructor call expressions (including implicit ones).
 ///
 /// Example matches string(ptr, n) and ptr within arguments of f
Index: lib/ASTMatchers/Dynamic/Registry.cpp
===================================================================
--- lib/ASTMatchers/Dynamic/Registry.cpp
+++ lib/ASTMatchers/Dynamic/Registry.cpp
@@ -326,6 +326,7 @@
   REGISTER_MATCHER(on);
   REGISTER_MATCHER(onImplicitObjectArgument);
   REGISTER_MATCHER(parameterCountIs);
+  REGISTER_MATCHER(parenExpr);
   REGISTER_MATCHER(parenType);
   REGISTER_MATCHER(parmVarDecl);
   REGISTER_MATCHER(pointee);
Index: unittests/ASTMatchers/ASTMatchersTest.cpp
===================================================================
--- unittests/ASTMatchers/ASTMatchersTest.cpp
+++ unittests/ASTMatchers/ASTMatchersTest.cpp
@@ -3563,6 +3563,13 @@
                          varDecl(isExceptionVariable())));
 }
 
+TEST(ParenExpression, SimpleCases) {
+  EXPECT_TRUE(matches("int i = (3);", parenExpr()));
+  EXPECT_TRUE(matches("int i = (3 + 7);", parenExpr()));
+  EXPECT_FALSE(matches("int i = 3;", parenExpr()));
+  EXPECT_FALSE(matches("int foo() { return 1; }; int a = foo();", parenExpr()));
+}
+
 TEST(HasConditionVariableStatement, DoesNotMatchCondition) {
   EXPECT_TRUE(notMatches(
       "void x() { if(true) {} }",
Index: unittests/ASTMatchers/Dynamic/RegistryTest.cpp
===================================================================
--- unittests/ASTMatchers/Dynamic/RegistryTest.cpp
+++ unittests/ASTMatchers/Dynamic/RegistryTest.cpp
@@ -506,6 +506,12 @@
   EXPECT_FALSE(matches("struct X {};", Value));
 }
 
+TEST_F(RegistryTest, ParenExpr) {
+  Matcher Value = constructMatcher("parenExpr").getTypedMatcher();
+  EXPECT_TRUE(matches("int i = (1);", Value));
+  EXPECT_FALSE(matches("int i = 1;", Value));
+}
+
 } // end anonymous namespace
 } // end namespace dynamic
 } // end namespace ast_matchers