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//===-- llvm/Argument.h - Definition of the Argument class ------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the Argument class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ARGUMENT_H
#define LLVM_ARGUMENT_H
#include "llvm/Value.h"
namespace llvm {
template<typename SC> struct ilist_traits;
template<typename ValueSubClass, typename ItemParentClass, typename SymTabClass,
typename SubClass> class SymbolTableListTraits;
/// A class to represent an incoming formal argument to a Function. An argument
/// is a very simple Value. It is essentially a named (optional) type. When used
/// in the body of a function, it represents the value of the actual argument
/// the function was called with.
/// @brief LLVM Argument representation
class Argument : public Value { // Defined in the Function.cpp file
Function *Parent;
Argument *Prev, *Next; // Next and Prev links for our intrusive linked list
void setNext(Argument *N) { Next = N; }
void setPrev(Argument *N) { Prev = N; }
friend class SymbolTableListTraits<Argument, Function, Function,
ilist_traits<Argument> >;
void setParent(Function *parent);
public:
/// Argument ctor - If Function argument is specified, this argument is
/// inserted at the end of the argument list for the function.
///
Argument(const Type *Ty, const std::string &Name = "", Function *F = 0);
inline const Function *getParent() const { return Parent; }
inline Function *getParent() { return Parent; }
// getNext/Prev - Return the next or previous argument in the list.
Argument *getNext() { return Next; }
const Argument *getNext() const { return Next; }
Argument *getPrev() { return Prev; }
const Argument *getPrev() const { return Prev; }
virtual void print(std::ostream &OS) const;
/// classof - Methods for support type inquiry through isa, cast, and
/// dyn_cast:
///
static inline bool classof(const Argument *) { return true; }
static inline bool classof(const Value *V) {
return V->getValueType() == ArgumentVal;
}
};
} // End llvm namespace
#endif
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