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llvm-mirror/include/llvm/GlobalValue.h
Chris Lattner a01eda3091 * Both Method & GlobalVariable now subclass GlobalValue
* ConstPoolPointerReference now represents a pointer to a GlobalValue
* Methods name references are now explicit pointers to methods
* Rename Value::GlobalVal to Value::GlobalVariableVal to avoid confusion

llvm-svn: 703
2001-10-03 14:53:21 +00:00

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1.3 KiB
C++

//===-- llvm/GlobalValue.h - Class to represent a global value ---*- C++ -*--=//
//
// This file is a common base class of all globally definable objects. As such,
// it is subclassed by GlobalVariable and by Method. This is used because you
// can do certain things with these global objects that you can't do to anything
// else. For example, use the address of one as a constant.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_GLOBALVALUE_H
#define LLVM_GLOBALVALUE_H
#include "llvm/User.h"
class PointerType;
class GlobalValue : public User {
GlobalValue(const GlobalValue &); // do not implement
protected:
GlobalValue(const Type *Ty, ValueTy vty, const string &name = "")
: User(Ty, vty, name) {}
public:
// getType - Global values are always pointers (FIXME, methods should be ptrs too!)
inline const PointerType *getType() const {
return (const PointerType*)User::getType();
}
// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const GlobalValue *T) { return true; }
static inline bool classof(const Value *V) {
return V->getValueType() == Value::MethodVal ||
V->getValueType() == Value::GlobalVariableVal;
}
};
#endif