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add a new TypeDecl class, which shares commonality between TypedefDecl and TagDecl instances. 

llvm-svn: 39309
This commit is contained in:
Chris Lattner 2007-01-26 02:12:16 +00:00
parent 6668fc60be
commit 0659f48467
1 changed files with 39 additions and 28 deletions
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67
clang/include/clang/AST/Decl.h
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@ -93,27 +93,7 @@ public:
static bool classof(const Decl *) { return true; }
};
class TypedefDecl : public Decl {
/// UnderlyingType - This is the type the typedef is set to.
TypeRef UnderlyingType;
/// TypeForDecl - This indicates the Type object that represents this
/// TypedefDecl. It is a cache maintained by ASTContext::getTypedefType.
Type *TypeForDecl;
friend class ASTContext;
public:
// FIXME: Remove Declarator argument.
TypedefDecl(SourceLocation L, IdentifierInfo *Id, TypeRef T)
: Decl(Typedef, L, Id), UnderlyingType(T), TypeForDecl(0) {}
TypeRef getUnderlyingType() const { return UnderlyingType; }
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return D->getKind() == Typedef; }
static bool classof(const TypedefDecl *D) { return true; }
};
/// ObjectDecl - ObjectDecl - Represents a declaration of a value.
/// ObjectDecl - Represents a declaration of a value.
class ObjectDecl : public Decl {
TypeRef DeclType;
protected:
@ -214,20 +194,51 @@ public:
};
/// TagDecl - Represents the declaration of a struct/union/class/enum.
class TagDecl : public Decl {
/// TypeForDecl - This indicates the Type object that represents this TagDecl.
/// It is a cache maintained by ASTContext::getTagDeclType.
/// TypeDecl - Represents a declaration of a type.
///
class TypeDecl : public Decl {
/// TypeForDecl - This indicates the Type object that represents this
/// TypeDecl. It is a cache maintained by ASTContext::getTypeDeclType.
Type *TypeForDecl;
friend class ASTContext;
protected:
TypeDecl(Kind DK, SourceLocation L, IdentifierInfo *Id)
: Decl(DK, L, Id), TypeForDecl(0) {}
public:
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) {
return D->getKind() == Typedef ||
D->getKind() == Struct || D->getKind() == Union ||
D->getKind() == Class || D->getKind() == Enum;
}
static bool classof(const TypeDecl *D) { return true; }
};
class TypedefDecl : public TypeDecl {
/// UnderlyingType - This is the type the typedef is set to.
TypeRef UnderlyingType;
public:
// FIXME: Remove Declarator argument.
TypedefDecl(SourceLocation L, IdentifierInfo *Id, TypeRef T)
: TypeDecl(Typedef, L, Id), UnderlyingType(T) {}
TypeRef getUnderlyingType() const { return UnderlyingType; }
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return D->getKind() == Typedef; }
static bool classof(const TypedefDecl *D) { return true; }
};
/// TagDecl - Represents the declaration of a struct/union/class/enum.
class TagDecl : public TypeDecl {
/// IsDefinition - True if this is a definition ("struct foo {};"), false if
/// it is a declaration ("struct foo;").
bool IsDefinition : 1;
protected:
TagDecl(Kind DK, SourceLocation L, IdentifierInfo *Id) : Decl(DK, L, Id) {
TypeForDecl = 0;
TagDecl(Kind DK, SourceLocation L, IdentifierInfo *Id) : TypeDecl(DK, L, Id) {
IsDefinition = false;
}
public: