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 "llvm/ADT/PointerIntPair.h"
18 
19 namespace clang {
20 
21 class ObjCMethodDecl;
22 
23 /// \brief a linked list of methods with the same selector name but different
24 /// signatures.
25 struct ObjCMethodList {
26   // NOTE: If you add any members to this struct, make sure to serialize them.
27   /// \brief If there is more than one decl with this signature.
28   llvm::PointerIntPair<ObjCMethodDecl *, 1> MethodAndHasMoreThanOneDecl;
29   /// \brief The next list object and 2 bits for extra info.
30   llvm::PointerIntPair<ObjCMethodList *, 2> NextAndExtraBits;
31 
ObjCMethodListObjCMethodList32   ObjCMethodList() { }
ObjCMethodListObjCMethodList33   ObjCMethodList(ObjCMethodDecl *M)
34       : MethodAndHasMoreThanOneDecl(M, 0) {}
35 
getNextObjCMethodList36   ObjCMethodList *getNext() const { return NextAndExtraBits.getPointer(); }
getBitsObjCMethodList37   unsigned getBits() const { return NextAndExtraBits.getInt(); }
setNextObjCMethodList38   void setNext(ObjCMethodList *L) { NextAndExtraBits.setPointer(L); }
setBitsObjCMethodList39   void setBits(unsigned B) { NextAndExtraBits.setInt(B); }
40 
getMethodObjCMethodList41   ObjCMethodDecl *getMethod() const {
42     return MethodAndHasMoreThanOneDecl.getPointer();
43   }
setMethodObjCMethodList44   void setMethod(ObjCMethodDecl *M) {
45     return MethodAndHasMoreThanOneDecl.setPointer(M);
46   }
47 
hasMoreThanOneDeclObjCMethodList48   bool hasMoreThanOneDecl() const {
49     return MethodAndHasMoreThanOneDecl.getInt();
50   }
setHasMoreThanOneDeclObjCMethodList51   void setHasMoreThanOneDecl(bool B) {
52     return MethodAndHasMoreThanOneDecl.setInt(B);
53   }
54 };
55 
56 }
57 
58 #endif
59