diff options
Diffstat (limited to 'include/clang/AST/Decl.h')
| -rw-r--r-- | include/clang/AST/Decl.h | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/include/clang/AST/Decl.h b/include/clang/AST/Decl.h index d993d34..5691e99 100644 --- a/include/clang/AST/Decl.h +++ b/include/clang/AST/Decl.h @@ -702,8 +702,12 @@ private: /// \brief Whether this variable is the for-range-declaration in a C++0x /// for-range statement. unsigned CXXForRangeDecl : 1; + + /// \brief Whether this variable is an ARC pseudo-__strong + /// variable; see isARCPseudoStrong() for details. + unsigned ARCPseudoStrong : 1; }; - enum { NumVarDeclBits = 13 }; // two reserved bits for now + enum { NumVarDeclBits = 13 }; // one reserved bit friend class ASTDeclReader; friend class StmtIteratorBase; @@ -975,6 +979,20 @@ public: void setInit(Expr *I); + /// \brief Determine whether this variable is a reference that + /// extends the lifetime of its temporary initializer. + /// + /// A reference extends the lifetime of its temporary initializer if + /// it's initializer is an rvalue that would normally go out of scope + /// at the end of the initializer (a full expression). In such cases, + /// the reference itself takes ownership of the temporary, which will + /// be destroyed when the reference goes out of scope. For example: + /// + /// \code + /// const int &r = 1.0; // creates a temporary of type 'int' + /// \endcode + bool extendsLifetimeOfTemporary() const; + EvaluatedStmt *EnsureEvaluatedStmt() const { EvaluatedStmt *Eval = Init.dyn_cast<EvaluatedStmt *>(); if (!Eval) { @@ -1102,6 +1120,13 @@ public: /// a C++0x for-range statement. bool isCXXForRangeDecl() const { return VarDeclBits.CXXForRangeDecl; } void setCXXForRangeDecl(bool FRD) { VarDeclBits.CXXForRangeDecl = FRD; } + + /// \brief Determine whether this variable is an ARC pseudo-__strong + /// variable. A pseudo-__strong variable has a __strong-qualified + /// type but does not actually retain the object written into it. + /// Generally such variables are also 'const' for safety. + bool isARCPseudoStrong() const { return VarDeclBits.ARCPseudoStrong; } + void setARCPseudoStrong(bool ps) { VarDeclBits.ARCPseudoStrong = ps; } /// \brief If this variable is an instantiated static data member of a /// class template specialization, returns the templated static data member @@ -2014,6 +2039,11 @@ public: InitializerOrBitWidth.setPointer(BW); InitializerOrBitWidth.setInt(1); } + /// removeBitWidth - Remove the bitfield width from this member. + void removeBitWidth() { + assert(isBitField() && "no bit width to remove"); + InitializerOrBitWidth.setPointer(0); + } /// hasInClassInitializer - Determine whether this member has a C++0x in-class /// initializer. @@ -2956,6 +2986,8 @@ public: bool capturesCXXThis() const { return CapturesCXXThis; } + bool capturesVariable(const VarDecl *var) const; + void setCaptures(ASTContext &Context, const Capture *begin, const Capture *end, |
