clang API Documentation
#include <ScopeInfo.h>
Classes | |
| class | DenseMapInfo |
Public Member Functions | |
| WeakObjectProfileTy (const ObjCPropertyRefExpr *RE) | |
| WeakObjectProfileTy (const Expr *Base, const ObjCPropertyDecl *Property) | |
| WeakObjectProfileTy (const DeclRefExpr *RE) | |
| WeakObjectProfileTy (const ObjCIvarRefExpr *RE) | |
| const NamedDecl * | getBase () const |
| const NamedDecl * | getProperty () const |
| bool | isExactProfile () const |
| bool | operator== (const WeakObjectProfileTy &Other) const |
Represents a simple identification of a weak object.
Part of the implementation of -Wrepeated-use-of-weak.
This is used to determine if two weak accesses refer to the same object. Here are some examples of how various accesses are "profiled":
Access Expression | "Base" Decl | "Property" Decl :---------------: | :-----------------: | :------------------------------: self.property | self (VarDecl) | property (ObjCPropertyDecl) self.implicitProp | self (VarDecl) | -implicitProp (ObjCMethodDecl) self->ivar.prop | ivar (ObjCIvarDecl) | prop (ObjCPropertyDecl) cxxObj.obj.prop | obj (FieldDecl) | prop (ObjCPropertyDecl) [self foo].prop | 0 (unknown) | prop (ObjCPropertyDecl) self.prop1.prop2 | prop1 (ObjCPropertyDecl) | prop2 (ObjCPropertyDecl) MyClass.prop | MyClass (ObjCInterfaceDecl) | -prop (ObjCMethodDecl) weakVar | 0 (known) | weakVar (VarDecl) self->weakIvar | self (VarDecl) | weakIvar (ObjCIvarDecl)
Objects are identified with only two Decls to make it reasonably fast to compare them.
Definition at line 170 of file ScopeInfo.h.
| FunctionScopeInfo::WeakObjectProfileTy::WeakObjectProfileTy | ( | const ObjCPropertyRefExpr * | RE | ) |
Definition at line 112 of file ScopeInfo.cpp.
References clang::ObjCPropertyRefExpr::getBase(), clang::ObjCPropertyRefExpr::getClassReceiver(), clang::OpaqueValueExpr::getSourceExpr(), clang::ObjCPropertyRefExpr::isClassReceiver(), clang::ObjCPropertyRefExpr::isObjectReceiver(), and clang::ObjCPropertyRefExpr::isSuperReceiver().
| FunctionScopeInfo::WeakObjectProfileTy::WeakObjectProfileTy | ( | const Expr * | Base, |
| const ObjCPropertyDecl * | Property | ||
| ) |
Definition at line 127 of file ScopeInfo.cpp.
| FunctionScopeInfo::WeakObjectProfileTy::WeakObjectProfileTy | ( | const DeclRefExpr * | RE | ) |
Definition at line 135 of file ScopeInfo.cpp.
| FunctionScopeInfo::WeakObjectProfileTy::WeakObjectProfileTy | ( | const ObjCIvarRefExpr * | RE | ) |
Definition at line 141 of file ScopeInfo.cpp.
| const NamedDecl* clang::sema::FunctionScopeInfo::WeakObjectProfileTy::getBase | ( | ) | const [inline] |
Definition at line 198 of file ScopeInfo.h.
| const NamedDecl* clang::sema::FunctionScopeInfo::WeakObjectProfileTy::getProperty | ( | ) | const [inline] |
Definition at line 199 of file ScopeInfo.h.
| bool clang::sema::FunctionScopeInfo::WeakObjectProfileTy::isExactProfile | ( | ) | const [inline] |
Returns true if the object base specifies a known object in memory, rather than, say, an instance variable or property of another object.
Note that this ignores the effects of aliasing; that is, foo.bar is considered an exact profile if foo is a local variable, even if another variable foo2 refers to the same object as foo.
For increased precision, accesses with base variables that are properties or ivars of 'self' (e.g. self.prop1.prop2) are considered to be exact, though this is not true for arbitrary variables (foo.prop1.prop2).
Definition at line 212 of file ScopeInfo.h.
| bool clang::sema::FunctionScopeInfo::WeakObjectProfileTy::operator== | ( | const WeakObjectProfileTy & | Other | ) | const [inline] |
Definition at line 216 of file ScopeInfo.h.