1 //===--- ObjCMethodList.h - A singly linked list of methods -----*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file defines ObjCMethodList, a singly-linked list of methods. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_CLANG_SEMA_OBJCMETHODLIST_H 14 #define LLVM_CLANG_SEMA_OBJCMETHODLIST_H 15 16 #include "clang/AST/DeclObjC.h" 17 #include "llvm/ADT/PointerIntPair.h" 18 19 namespace clang { 20 21 class ObjCMethodDecl; 22 23 /// 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 /// If there is more than one decl with this signature. 28 llvm::PointerIntPair<ObjCMethodDecl *, 1> MethodAndHasMoreThanOneDecl; 29 /// The next list object and 2 bits for extra info. 30 llvm::PointerIntPair<ObjCMethodList *, 2> NextAndExtraBits; 31 32 ObjCMethodList() { } 33 ObjCMethodList(ObjCMethodDecl *M) 34 : MethodAndHasMoreThanOneDecl(M, 0) {} 35 ObjCMethodList(const ObjCMethodList &L) 36 : MethodAndHasMoreThanOneDecl(L.MethodAndHasMoreThanOneDecl), 37 NextAndExtraBits(L.NextAndExtraBits) {} 38 39 ObjCMethodList *getNext() const { return NextAndExtraBits.getPointer(); } 40 unsigned getBits() const { return NextAndExtraBits.getInt(); } 41 void setNext(ObjCMethodList *L) { NextAndExtraBits.setPointer(L); } 42 void setBits(unsigned B) { NextAndExtraBits.setInt(B); } 43 44 ObjCMethodDecl *getMethod() const { 45 return MethodAndHasMoreThanOneDecl.getPointer(); 46 } 47 void setMethod(ObjCMethodDecl *M) { 48 return MethodAndHasMoreThanOneDecl.setPointer(M); 49 } 50 51 bool hasMoreThanOneDecl() const { 52 return MethodAndHasMoreThanOneDecl.getInt(); 53 } 54 void setHasMoreThanOneDecl(bool B) { 55 return MethodAndHasMoreThanOneDecl.setInt(B); 56 } 57 }; 58 59 } 60 61 #endif 62