1 //===-- llvm/Argument.h - Definition of the Argument class ------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the Argument class, which represents an incoming formal
11 // argument to a Function.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_ARGUMENT_H
16 #define LLVM_ARGUMENT_H
18 #include "llvm/Value.h"
22 template<typename SC> struct ilist_traits;
23 template<typename ValueSubClass, typename ItemParentClass, typename SymTabClass,
24 typename SubClass> class SymbolTableListTraits;
26 class Argument : public Value { // Defined in the Function.cpp file
29 Argument *Prev, *Next; // Next and Prev links for our intrusive linked list
30 void setNext(Argument *N) { Next = N; }
31 void setPrev(Argument *N) { Prev = N; }
32 friend class SymbolTableListTraits<Argument, Function, Function,
33 ilist_traits<Argument> >;
34 void setParent(Function *parent);
37 /// Argument ctor - If Function argument is specified, this argument is
38 /// inserted at the end of the argument list for the function.
40 Argument(const Type *Ty, const std::string &Name = "", Function *F = 0);
42 inline const Function *getParent() const { return Parent; }
43 inline Function *getParent() { return Parent; }
45 // getNext/Prev - Return the next or previous argument in the list.
46 Argument *getNext() { return Next; }
47 const Argument *getNext() const { return Next; }
48 Argument *getPrev() { return Prev; }
49 const Argument *getPrev() const { return Prev; }
51 virtual void print(std::ostream &OS) const;
53 /// classof - Methods for support type inquiry through isa, cast, and
56 static inline bool classof(const Argument *) { return true; }
57 static inline bool classof(const Value *V) {
58 return V->getValueType() == ArgumentVal;
62 } // End llvm namespace