diff options
Diffstat (limited to 'clang/include/clang/AST/Expr.h')
| -rw-r--r-- | clang/include/clang/AST/Expr.h | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/clang/include/clang/AST/Expr.h b/clang/include/clang/AST/Expr.h index 523c032..237b3b2 100644 --- a/clang/include/clang/AST/Expr.h +++ b/clang/include/clang/AST/Expr.h @@ -57,6 +57,7 @@ namespace clang { class StringLiteral; class TargetInfo; class ValueDecl; + class WarnUnusedResultAttr; /// A simple array of base specifiers. typedef SmallVector<CXXBaseSpecifier*, 4> CXXCastPath; @@ -262,6 +263,12 @@ public: SourceRange &R1, SourceRange &R2, ASTContext &Ctx) const; + /// Returns the WarnUnusedResultAttr that is declared on the callee + /// or its return type declaration, together with a NamedDecl that + /// refers to the declaration the attribute is attached to. + static std::pair<const NamedDecl *, const WarnUnusedResultAttr *> + getUnusedResultAttrImpl(const Decl *Callee, QualType ReturnType); + /// isLValue - True if this expression is an "l-value" according to /// the rules of the current language. C and C++ give somewhat /// different rules for this concept, but in general, the result of @@ -546,17 +553,13 @@ public: bool IgnoreTemplateOrMacroSubstitution = false) const; /// isIntegerConstantExpr - Return the value if this expression is a valid - /// integer constant expression. If not a valid i-c-e, return std::nullopt - /// and fill in Loc (if specified) with the location of the invalid - /// expression. + /// integer constant expression. If not a valid i-c-e, return std::nullopt. /// /// Note: This does not perform the implicit conversions required by C++11 /// [expr.const]p5. std::optional<llvm::APSInt> - getIntegerConstantExpr(const ASTContext &Ctx, - SourceLocation *Loc = nullptr) const; - bool isIntegerConstantExpr(const ASTContext &Ctx, - SourceLocation *Loc = nullptr) const; + getIntegerConstantExpr(const ASTContext &Ctx) const; + bool isIntegerConstantExpr(const ASTContext &Ctx) const; /// isCXX98IntegralConstantExpr - Return true if this expression is an /// integral constant expression in C++98. Can only be used in C++. @@ -567,8 +570,8 @@ public: /// /// Note: This does not perform the implicit conversions required by C++11 /// [expr.const]p5. - bool isCXX11ConstantExpr(const ASTContext &Ctx, APValue *Result = nullptr, - SourceLocation *Loc = nullptr) const; + bool isCXX11ConstantExpr(const ASTContext &Ctx, + APValue *Result = nullptr) const; /// isPotentialConstantExpr - Return true if this function's definition /// might be usable in a constant expression in C++11, if it were marked @@ -3190,11 +3193,13 @@ public: /// type. QualType getCallReturnType(const ASTContext &Ctx) const; - /// Returns the WarnUnusedResultAttr that is either declared on the called - /// function, or its return type declaration, together with a NamedDecl that - /// refers to the declaration the attribute is attached onto. - std::pair<const NamedDecl *, const Attr *> - getUnusedResultAttr(const ASTContext &Ctx) const; + /// Returns the WarnUnusedResultAttr that is declared on the callee + /// or its return type declaration, together with a NamedDecl that + /// refers to the declaration the attribute is attached to. + std::pair<const NamedDecl *, const WarnUnusedResultAttr *> + getUnusedResultAttr(const ASTContext &Ctx) const { + return getUnusedResultAttrImpl(getCalleeDecl(), getCallReturnType(Ctx)); + } /// Returns true if this call expression should warn on unused results. bool hasUnusedResultAttr(const ASTContext &Ctx) const { |