1//===--- ObjCMethodList.h - A singly linked list of methods -----*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file defines ObjCMethodList, a singly-linked list of methods.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_CLANG_SEMA_OBJCMETHODLIST_H
15#define LLVM_CLANG_SEMA_OBJCMETHODLIST_H
16
17#include "clang/AST/DeclObjC.h"
18#include "llvm/ADT/PointerIntPair.h"
19
20namespace clang {
21
22class ObjCMethodDecl;
23
24/// \brief a linked list of methods with the same selector name but different
25/// signatures.
26struct ObjCMethodList {
27  // NOTE: If you add any members to this struct, make sure to serialize them.
28  /// \brief If there is more than one decl with this signature.
29  llvm::PointerIntPair<ObjCMethodDecl *, 1> MethodAndHasMoreThanOneDecl;
30  /// \brief The next list object and 2 bits for extra info.
31  llvm::PointerIntPair<ObjCMethodList *, 2> NextAndExtraBits;
32
33  ObjCMethodList() { }
34  ObjCMethodList(ObjCMethodDecl *M)
35      : MethodAndHasMoreThanOneDecl(M, 0) {}
36  ObjCMethodList(const ObjCMethodList &L)
37      : MethodAndHasMoreThanOneDecl(L.MethodAndHasMoreThanOneDecl),
38        NextAndExtraBits(L.NextAndExtraBits) {}
39
40  ObjCMethodList *getNext() const { return NextAndExtraBits.getPointer(); }
41  unsigned getBits() const { return NextAndExtraBits.getInt(); }
42  void setNext(ObjCMethodList *L) { NextAndExtraBits.setPointer(L); }
43  void setBits(unsigned B) { NextAndExtraBits.setInt(B); }
44
45  ObjCMethodDecl *getMethod() const {
46    return MethodAndHasMoreThanOneDecl.getPointer();
47  }
48  void setMethod(ObjCMethodDecl *M) {
49    return MethodAndHasMoreThanOneDecl.setPointer(M);
50  }
51
52  bool hasMoreThanOneDecl() const {
53    return MethodAndHasMoreThanOneDecl.getInt();
54  }
55  void setHasMoreThanOneDecl(bool B) {
56    return MethodAndHasMoreThanOneDecl.setInt(B);
57  }
58};
59
60}
61
62#endif
63