Index: clang-tidy/readability/SimplifyBooleanExprCheck.h =================================================================== --- clang-tidy/readability/SimplifyBooleanExprCheck.h +++ clang-tidy/readability/SimplifyBooleanExprCheck.h @@ -50,6 +50,12 @@ void matchCompoundIfReturnsBool(ast_matchers::MatchFinder *Finder, bool Value, StringRef Id); + void matchCaseIfReturnsBool(ast_matchers::MatchFinder *Finder, bool Value, + StringRef Id); + + void matchDefaultIfReturnsBool(ast_matchers::MatchFinder *Finder, bool Value, + StringRef Id); + void replaceWithThenStatement(const ast_matchers::MatchFinder::MatchResult &Result, const CXXBoolLiteralExpr *BoolLiteral); @@ -60,20 +66,31 @@ void replaceWithCondition(const ast_matchers::MatchFinder::MatchResult &Result, - const ConditionalOperator *Ternary, - bool Negated = false); + const ConditionalOperator *Ternary, bool Negated); void replaceWithReturnCondition( const ast_matchers::MatchFinder::MatchResult &Result, const IfStmt *If, - bool Negated = false); + bool Negated); void replaceWithAssignment(const ast_matchers::MatchFinder::MatchResult &Result, - const IfStmt *If, bool Negated = false); + const IfStmt *If, bool Negated); void replaceCompoundReturnWithCondition( const ast_matchers::MatchFinder::MatchResult &Result, - const CompoundStmt *Compound, bool Negated = false); + const CompoundStmt *Compound, bool Negated); + + void replaceSwitchCaseCompoundReturnWithCondition( + const ast_matchers::MatchFinder::MatchResult &Result, + const CompoundStmt *Compound, bool Negated, const SwitchCase *SwitchCase); + + void replaceCaseCompoundReturnWithCondition( + const ast_matchers::MatchFinder::MatchResult &Result, + const CompoundStmt *Compound, bool Negated); + + void replaceDefaultCompoundReturnWithCondition( + const ast_matchers::MatchFinder::MatchResult &Result, + const CompoundStmt *Compound, bool Negated); void issueDiag(const ast_matchers::MatchFinder::MatchResult &Result, SourceLocation Loc, StringRef Description, Index: clang-tidy/readability/SimplifyBooleanExprCheck.cpp =================================================================== --- clang-tidy/readability/SimplifyBooleanExprCheck.cpp +++ clang-tidy/readability/SimplifyBooleanExprCheck.cpp @@ -47,8 +47,15 @@ const char IfAssignNotBoolId[] = "if-assign-not"; const char IfAssignObjId[] = "if-assign-obj"; const char CompoundReturnId[] = "compound-return"; +const char CompoundIfId[] = "compound-if"; const char CompoundBoolId[] = "compound-bool"; const char CompoundNotBoolId[] = "compound-bool-not"; +const char CaseId[] = "case"; +const char CaseCompoundBoolId[] = "case-compound-bool"; +const char CaseCompoundNotBoolId[] = "case-compound-bool-not"; +const char DefaultId[] = "default"; +const char DefaultCompoundBoolId[] = "default-compound-bool"; +const char DefaultCompoundNotBoolId[] = "default-compound-bool-not"; const char IfStmtId[] = "if"; @@ -319,7 +326,7 @@ } // namespace class SimplifyBooleanExprCheck::Visitor : public RecursiveASTVisitor { - public: +public: Visitor(SimplifyBooleanExprCheck *Check, const MatchFinder::MatchResult &Result) : Check(Check), Result(Result) {} @@ -329,12 +336,11 @@ return true; } - private: +private: SimplifyBooleanExprCheck *Check; const MatchFinder::MatchResult &Result; }; - SimplifyBooleanExprCheck::SimplifyBooleanExprCheck(StringRef Name, ClangTidyContext *Context) : ClangTidyCheck(Name, Context), @@ -361,8 +367,8 @@ const auto *LHS = Op->getLHS()->IgnoreParenImpCasts(); const auto *RHS = Op->getRHS()->IgnoreParenImpCasts(); - const CXXBoolLiteralExpr *Bool = nullptr; - const Expr *Other = nullptr; + const CXXBoolLiteralExpr *Bool; + const Expr *Other; if ((Bool = dyn_cast(LHS))) Other = RHS; else if ((Bool = dyn_cast(RHS))) @@ -377,46 +383,46 @@ if (!isa(Other) && containsBoolLiteral(Other)) return; - bool BoolValue = Bool->getValue(); + const bool BoolValue = Bool->getValue(); - auto replaceWithExpression = [this, &Result, LHS, RHS, Bool]( - const Expr *ReplaceWith, bool Negated) { - std::string Replacement = - replacementExpression(Result, Negated, ReplaceWith); - SourceRange Range(LHS->getBeginLoc(), RHS->getEndLoc()); - issueDiag(Result, Bool->getBeginLoc(), SimplifyOperatorDiagnostic, Range, - Replacement); - }; + const auto replaceWithExpression = + [this, &Result, LHS, RHS, Bool](const Expr *ReplaceWith, bool Negated) { + const std::string Replacement = + replacementExpression(Result, Negated, ReplaceWith); + SourceRange Range(LHS->getBeginLoc(), RHS->getEndLoc()); + issueDiag(Result, Bool->getBeginLoc(), SimplifyOperatorDiagnostic, + Range, Replacement); + }; switch (Op->getOpcode()) { - case BO_LAnd: - if (BoolValue) { - // expr && true -> expr - replaceWithExpression(Other, /*Negated=*/false); - } else { - // expr && false -> false - replaceWithExpression(Bool, /*Negated=*/false); - } - break; - case BO_LOr: - if (BoolValue) { - // expr || true -> true - replaceWithExpression(Bool, /*Negated=*/false); - } else { - // expr || false -> expr - replaceWithExpression(Other, /*Negated=*/false); - } - break; - case BO_EQ: - // expr == true -> expr, expr == false -> !expr - replaceWithExpression(Other, /*Negated=*/!BoolValue); - break; - case BO_NE: - // expr != true -> !expr, expr != false -> expr - replaceWithExpression(Other, /*Negated=*/BoolValue); - break; - default: - break; + case BO_LAnd: + if (BoolValue) { + // expr && true -> expr + replaceWithExpression(Other, /*Negated=*/false); + } else { + // expr && false -> false + replaceWithExpression(Bool, /*Negated=*/false); + } + break; + case BO_LOr: + if (BoolValue) { + // expr || true -> true + replaceWithExpression(Bool, /*Negated=*/false); + } else { + // expr || false -> expr + replaceWithExpression(Other, /*Negated=*/false); + } + break; + case BO_EQ: + // expr == true -> expr, expr == false -> !expr + replaceWithExpression(Other, /*Negated=*/!BoolValue); + break; + case BO_NE: + // expr != true -> !expr, expr != false -> expr + replaceWithExpression(Other, /*Negated=*/BoolValue); + break; + default: + break; } } @@ -499,6 +505,42 @@ this); } +void SimplifyBooleanExprCheck::matchCaseIfReturnsBool(MatchFinder *Finder, + bool Value, + StringRef Id) { + // binding to the returnStmt matched is pointless because we can't guarantee + // anything about the ordering of the return statement and the case statement. + // If only we had a statement sequence matcher... + Finder->addMatcher( + switchStmt( + has(compoundStmt( + has(caseStmt(hasDescendant(ifStmt(hasThen(returnsBool(Value)), + unless(hasElse(stmt()))) + .bind(CompoundIfId))) + .bind(CaseId)), + has(returnStmt(has(cxxBoolLiteral(equals(!Value)))))) + .bind(Id))), + this); +} + +void SimplifyBooleanExprCheck::matchDefaultIfReturnsBool(MatchFinder *Finder, + bool Value, + StringRef Id) { + // binding to the returnStmt matched is pointless because we can't guarantee + // anything about the ordering of the return statement and the case statement. + // If only we had a statement sequence matcher... + Finder->addMatcher( + switchStmt(has( + compoundStmt( + has(defaultStmt(hasDescendant(ifStmt(hasThen(returnsBool(Value)), + unless(hasElse(stmt()))) + .bind(CompoundIfId))) + .bind(DefaultId)), + has(returnStmt(has(cxxBoolLiteral(equals(!Value)))))) + .bind(Id))), + this); +} + void SimplifyBooleanExprCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) { Options.store(Opts, "ChainedConditionalReturn", ChainedConditionalReturn); Options.store(Opts, "ChainedConditionalAssignment", @@ -522,6 +564,12 @@ matchCompoundIfReturnsBool(Finder, true, CompoundBoolId); matchCompoundIfReturnsBool(Finder, false, CompoundNotBoolId); + + matchCaseIfReturnsBool(Finder, true, CaseCompoundBoolId); + matchCaseIfReturnsBool(Finder, false, CaseCompoundNotBoolId); + + matchDefaultIfReturnsBool(Finder, true, DefaultCompoundBoolId); + matchDefaultIfReturnsBool(Finder, false, DefaultCompoundNotBoolId); } void SimplifyBooleanExprCheck::check(const MatchFinder::MatchResult &Result) { @@ -535,27 +583,41 @@ replaceWithElseStatement(Result, FalseConditionRemoved); else if (const auto *Ternary = Result.Nodes.getNodeAs(TernaryId)) - replaceWithCondition(Result, Ternary); + replaceWithCondition(Result, Ternary, false); else if (const auto *TernaryNegated = Result.Nodes.getNodeAs(TernaryNegatedId)) replaceWithCondition(Result, TernaryNegated, true); else if (const auto *If = Result.Nodes.getNodeAs(IfReturnsBoolId)) - replaceWithReturnCondition(Result, If); + replaceWithReturnCondition(Result, If, false); else if (const auto *IfNot = Result.Nodes.getNodeAs(IfReturnsNotBoolId)) replaceWithReturnCondition(Result, IfNot, true); else if (const auto *IfAssign = Result.Nodes.getNodeAs(IfAssignBoolId)) - replaceWithAssignment(Result, IfAssign); + replaceWithAssignment(Result, IfAssign, false); else if (const auto *IfAssignNot = Result.Nodes.getNodeAs(IfAssignNotBoolId)) replaceWithAssignment(Result, IfAssignNot, true); else if (const auto *Compound = Result.Nodes.getNodeAs(CompoundBoolId)) - replaceCompoundReturnWithCondition(Result, Compound); - else if (const auto *Compound = + replaceCompoundReturnWithCondition(Result, Compound, false); + else if (const auto *CompoundNot = Result.Nodes.getNodeAs(CompoundNotBoolId)) - replaceCompoundReturnWithCondition(Result, Compound, true); + replaceCompoundReturnWithCondition(Result, CompoundNot, true); + else if (const auto *CaseCompound = + Result.Nodes.getNodeAs(CaseCompoundBoolId)) + replaceCaseCompoundReturnWithCondition(Result, CaseCompound, false); + else if (const auto *CaseCompoundNot = + Result.Nodes.getNodeAs(CaseCompoundNotBoolId)) + replaceCaseCompoundReturnWithCondition(Result, CaseCompoundNot, true); + else if (const auto *DefaultCompound = + Result.Nodes.getNodeAs(DefaultCompoundBoolId)) + replaceDefaultCompoundReturnWithCondition(Result, DefaultCompound, false); + else if (const auto *DefaultCompoundNot = + Result.Nodes.getNodeAs(DefaultCompoundNotBoolId)) + replaceDefaultCompoundReturnWithCondition(Result, DefaultCompoundNot, true); + else if (const auto TU = Result.Nodes.getNodeAs("top")) + Visitor(this, Result).TraverseDecl(const_cast(TU)); } void SimplifyBooleanExprCheck::issueDiag( @@ -635,7 +697,7 @@ continue; const Expr *Condition = If->getCond(); - std::string Replacement = + const std::string Replacement = "return " + replacementExpression(Result, Negated, Condition); issueDiag( Result, Lit->getBeginLoc(), SimplifyConditionalReturnDiagnostic, @@ -651,6 +713,87 @@ } } +void SimplifyBooleanExprCheck::replaceSwitchCaseCompoundReturnWithCondition( + const MatchFinder::MatchResult &Result, const CompoundStmt *Compound, + bool Negated, const SwitchCase *SwitchCase) { + assert(SwitchCase != nullptr); + + // The body shouldn't be empty because the matcher ensures that it must + // contain at least two statements: + // 1) A `return` statement returning a boolean literal `false` or `true` + // 2) An `if` statement with no `else` clause that consists of a single + // `return` statement returning the opposite boolean literal `true` or + // `false`. + assert(Compound->size() >= 2); + + // We're looking for something like: + // + // switch (expr) { + // case 10: + // if (cond) return false; + // return true; + // } + // + // The matcher ensures that the case/if combination is already there, + // and that there is a return statement of this form somewhere in the + // compound statement associated with the switch contains a return + // statement of this form, but the return statement could be anywhere + // within the compound statement, so we have to manually check to see + // if the next statement after the if contains a return statement of + // the correct form. Ideally we'd be able to express this with the + // matchers, but that is currently impossible. + // + const auto *If = dyn_cast(SwitchCase->getSubStmt()); + assert(If != nullptr); + const CXXBoolLiteralExpr *Lit = stmtReturnsBool(If, Negated); + assert(Lit != nullptr); + + // Advance to the matched CaseStmt + CompoundStmt::const_body_iterator Current = Compound->body_begin(); + while (Current != Compound->body_end() && *Current != SwitchCase) + ++Current; + assert(Current != Compound->body_end()); + + // Advance to the next statement, watch out for something like: + // + // switch (expr) { + // case 0: + // return true; + // + // case 1: + // if (cond) return false; + // } + // + ++Current; + if (Current == Compound->body_end()) + return; + + if (const auto *Ret = dyn_cast(*Current)) { + if (stmtReturnsBool(Ret, !Negated)) { + const Expr *Condition = If->getCond(); + const std::string Replacement = + "return " + replacementExpression(Result, Negated, Condition); + issueDiag(Result, Lit->getBeginLoc(), SimplifyConditionalReturnDiagnostic, + SourceRange(If->getBeginLoc(), Ret->getEndLoc()), Replacement); + } + } +} + +void SimplifyBooleanExprCheck::replaceCaseCompoundReturnWithCondition( + const MatchFinder::MatchResult &Result, const CompoundStmt *Compound, + bool Negated) { + replaceSwitchCaseCompoundReturnWithCondition( + Result, Compound, Negated, Result.Nodes.getNodeAs(CaseId)); +} + +void SimplifyBooleanExprCheck::replaceDefaultCompoundReturnWithCondition( + const MatchFinder::MatchResult &Result, const CompoundStmt *Compound, + bool Negated) { + replaceSwitchCaseCompoundReturnWithCondition( + Result, Compound, Negated, + Result.Nodes.getNodeAs(DefaultId)); +} + void SimplifyBooleanExprCheck::replaceWithAssignment( const MatchFinder::MatchResult &Result, const IfStmt *IfAssign, bool Negated) { Index: test/clang-tidy/readability-simplify-bool-expr-case.cpp =================================================================== --- /dev/null +++ test/clang-tidy/readability-simplify-bool-expr-case.cpp @@ -0,0 +1,586 @@ +// RUN: %check_clang_tidy %s readability-simplify-boolean-expr %t + +bool switch_stmt(int i, int j, bool b) { + switch (i) { + case 0: + if (b == true) + j = 10; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(b\)}} + // CHECK-FIXES-NEXT: {{j = 10;}} + + case 1: + if (b == false) + j = -20; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(!b\)}} + // CHECK-FIXES-NEXT: {{j = -20;}} + + case 2: + if (b && true) + j = 10; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(b\)}} + // CHECK-FIXES-NEXT: {{j = 10;}} + + case 3: + if (b && false) + j = -20; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(false\)}} + // CHECK-FIXES-NEXT: {{j = -20;}} + + case 4: + if (b || true) + j = 10; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(true\)}} + // CHECK-FIXES-NEXT: {{j = 10;}} + // CHECK-FIXES-NEXT: {{break;}} + + case 5: + if (b || false) + j = -20; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(b\)}} + // CHECK-FIXES-NEXT: {{j = -20;}} + + case 6: + return i > 0 ? true : false; + // CHECK-MESSAGES: :[[@LINE-1]]:20: warning: {{.*}} in ternary expression result + // CHECK-FIXES: {{return i > 0;}} + + case 7: + return i > 0 ? false : true; + // CHECK-MESSAGES: :[[@LINE-1]]:20: warning: {{.*}} in ternary expression result + // CHECK-FIXES: {{return i <= 0;}} + + case 8: + if (true) + j = 10; + else + j = -20; + break; + // CHECK-MESSAGES: :[[@LINE-5]]:9: warning: {{.*}} in if statement condition + // CHECK-FIXES: {{j = 10;$}} + // CHECK-FIXES-NEXT: {{break;$}} + + case 9: + if (false) + j = -20; + else + j = 10; + break; + // CHECK-MESSAGES: :[[@LINE-5]]:9: warning: {{.*}} in if statement condition + // CHECK-FIXES: {{j = 10;}} + // CHECK-FIXES-NEXT: {{break;}} + + case 10: + if (j > 10) + return true; + else + return false; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} in conditional return statement + // CHECK-FIXES: {{return j > 10;}} + + case 11: + if (j > 10) + return false; + else + return true; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} in conditional return statement + // CHECK-FIXES: {{return j <= 10;}} + + case 12: + if (j > 10) + b = true; + else + b = false; + return b; + // CHECK-MESSAGES: :[[@LINE-4]]:11: warning: {{.*}} in conditional assignment + // CHECK-FIXES: {{b = j > 10;}} + // CHECK-FIXES-NEXT: {{return b;}} + + case 13: + if (j > 10) + b = false; + else + b = true; + return b; + // CHECK-MESSAGES: :[[@LINE-4]]:11: warning: {{.*}} in conditional assignment + // CHECK-FIXES: {{b = j <= 10;}} + // CHECK-FIXES-NEXT: {{return b;}} + + case 14: + if (j > 10) + return true; + return false; + // CHECK-MESSAGES: :[[@LINE-2]]:14: warning: {{.*}} in conditional return + // FIXES: {{return j > 10;}} + + case 15: + if (j > 10) + return false; + return true; + // CHECK-MESSAGES: :[[@LINE-2]]:14: warning: {{.*}} in conditional return + // FIXES: {{return j <= 10;}} + + case 16: + if (j > 10) + return true; + return true; + return false; + + case 17: + if (j > 10) + return false; + return false; + return true; + + case 100: { + if (b == true) + j = 10; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(b\)}} + // CHECK-FIXES-NEXT: {{j = 10;}} + } + + case 101: { + if (b == false) + j = -20; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(!b\)}} + // CHECK-FIXES-NEXT: {{j = -20;}} + } + + case 102: { + if (b && true) + j = 10; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(b\)}} + // CHECK-FIXES-NEXT: {{j = 10;}} + } + + case 103: { + if (b && false) + j = -20; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(false\)}} + // CHECK-FIXES-NEXT: {{j = -20;}} + } + + case 104: { + if (b || true) + j = 10; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(true\)}} + // CHECK-FIXES-NEXT: {{j = 10;}} + // CHECK-FIXES-NEXT: {{break;}} + } + + case 105: { + if (b || false) + j = -20; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(b\)}} + // CHECK-FIXES-NEXT: {{j = -20;}} + } + + case 106: { + return i > 0 ? true : false; + // CHECK-MESSAGES: :[[@LINE-1]]:20: warning: {{.*}} in ternary expression result + // CHECK-FIXES: {{return i > 0;}} + } + + case 107: { + return i > 0 ? false : true; + // CHECK-MESSAGES: :[[@LINE-1]]:20: warning: {{.*}} in ternary expression result + // CHECK-FIXES: {{return i <= 0;}} + } + + case 108: { + if (true) + j = 10; + else + j = -20; + break; + // CHECK-MESSAGES: :[[@LINE-5]]:9: warning: {{.*}} in if statement condition + // CHECK-FIXES: {{j = 10;$}} + // CHECK-FIXES-NEXT: {{break;$}} + } + + case 109: { + if (false) + j = -20; + else + j = 10; + break; + // CHECK-MESSAGES: :[[@LINE-5]]:9: warning: {{.*}} in if statement condition + // CHECK-FIXES: {{j = 10;}} + // CHECK-FIXES-NEXT: {{break;}} + } + + case 110: { + if (j > 10) + return true; + else + return false; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} in conditional return statement + // CHECK-FIXES: {{return j > 10;}} + } + + case 111: { + if (j > 10) + return false; + else + return true; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} in conditional return statement + // CHECK-FIXES: {{return j <= 10;}} + } + + case 112: { + if (j > 10) + b = true; + else + b = false; + return b; + // CHECK-MESSAGES: :[[@LINE-4]]:11: warning: {{.*}} in conditional assignment + // CHECK-FIXES: {{b = j > 10;}} + // CHECK-FIXES-NEXT: {{return b;}} + } + + case 113: { + if (j > 10) + b = false; + else + b = true; + return b; + // CHECK-MESSAGES: :[[@LINE-4]]:11: warning: {{.*}} in conditional assignment + // CHECK-FIXES: {{b = j <= 10;}} + // CHECK-FIXES-NEXT: {{return b;}} + } + + case 114: { + if (j > 10) + return true; + return false; + // CHECK-MESSAGES: :[[@LINE-2]]:14: warning: {{.*}} in conditional return + // CHECK-FIXES: {{return j > 10;}} + } + + case 115: { + if (j > 10) + return false; + return true; + // CHECK-MESSAGES: :[[@LINE-2]]:14: warning: {{.*}} in conditional return + // CHECK-FIXES: {{return j <= 10;}} + } + + case 116: { + return false; + if (j > 10) + return true; + } + + case 117: { + return true; + if (j > 10) + return false; + } + } + + return j > 0; +} + +bool default_stmt0(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (b == true) + j = 10; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(b\)}} + // CHECK-FIXES-NEXT: {{j = 10;}} + } + return false; +} + +bool default_stmt1(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (b == false) + j = -20; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(!b\)}} + // CHECK-FIXES-NEXT: {{j = -20;}} + } + return false; +} + +bool default_stmt2(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (b && true) + j = 10; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(b\)}} + // CHECK-FIXES-NEXT: {{j = 10;}} + } + return false; +} + +bool default_stmt3(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (b && false) + j = -20; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(false\)}} + // CHECK-FIXES-NEXT: {{j = -20;}} + } + return false; +} + +bool default_stmt4(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (b || true) + j = 10; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(true\)}} + // CHECK-FIXES-NEXT: {{j = 10;}} + // CHECK-FIXES-NEXT: {{break;}} + } + return false; +} + +bool default_stmt5(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (b || false) + j = -20; + break; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} to boolean operator + // CHECK-FIXES: {{if \(b\)}} + // CHECK-FIXES-NEXT: {{j = -20;}} + } + return false; +} + +bool default_stmt6(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + return i > 0 ? true : false; + // CHECK-MESSAGES: :[[@LINE-1]]:20: warning: {{.*}} in ternary expression result + // CHECK-FIXES: {{return i > 0;}} + } + return false; +} + +bool default_stmt7(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + return i > 0 ? false : true; + // CHECK-MESSAGES: :[[@LINE-1]]:20: warning: {{.*}} in ternary expression result + // CHECK-FIXES: {{return i <= 0;}} + } + return false; +} + +bool default_stmt8(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (true) + j = 10; + else + j = -20; + break; + // CHECK-MESSAGES: :[[@LINE-5]]:9: warning: {{.*}} in if statement condition + // CHECK-FIXES: {{j = 10;$}} + // CHECK-FIXES-NEXT: {{break;$}} + } + return false; +} + +bool default_stmt9(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (false) + j = -20; + else + j = 10; + break; + // CHECK-MESSAGES: :[[@LINE-5]]:9: warning: {{.*}} in if statement condition + // CHECK-FIXES: {{j = 10;}} + // CHECK-FIXES-NEXT: {{break;}} + } + return false; +} + +bool default_stmt10(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (j > 10) + return true; + else + return false; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} in conditional return statement + // CHECK-FIXES: {{return j > 10;}} + } + return false; +} + +bool default_stmt11(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (j > 10) + return false; + else + return true; + // CHECK-MESSAGES: :[[@LINE-3]]:14: warning: {{.*}} in conditional return statement + // CHECK-FIXES: {{return j <= 10;}} + } + return false; +} + +bool default_stmt12(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (j > 10) + b = true; + else + b = false; + return b; + // CHECK-MESSAGES: :[[@LINE-4]]:11: warning: {{.*}} in conditional assignment + // CHECK-FIXES: {{b = j > 10;}} + // CHECK-FIXES-NEXT: {{return b;}} + } + return false; +} + +bool default_stmt13(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (j > 10) + b = false; + else + b = true; + return b; + // CHECK-MESSAGES: :[[@LINE-4]]:11: warning: {{.*}} in conditional assignment + // CHECK-FIXES: {{b = j <= 10;}} + // CHECK-FIXES-NEXT: {{return b;}} + } + return false; +} + +bool default_stmt14(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (j > 10) + return true; + return false; + // CHECK-MESSAGES: :[[@LINE-2]]:14: warning: {{.*}} in conditional return + // FIXES: {{return j > 10;}} + } + return false; +} + +bool default_stmt15(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (j > 10) + return false; + return true; + // CHECK-MESSAGES: :[[@LINE-2]]:14: warning: {{.*}} in conditional return + // FIXES: {{return j <= 10;}} + } + return false; +} + +bool default_stmt16(int i, int j, bool b) { + switch (i) { + case 0: + return false; + + default: + if (j > 10) + return true; + } + return false; +} + +bool default_stmt17(int i, int j, bool b) { + switch (i) { + case 0: + return true; + + default: + if (j > 10) + return false; + } + return false; +}