| 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 &operator=(const ObjCMethodList &L) { |
| 40 | MethodAndHasMoreThanOneDecl = L.MethodAndHasMoreThanOneDecl; |
| 41 | NextAndExtraBits = L.NextAndExtraBits; |
| 42 | return *this; |
| 43 | } |
| 44 | |
| 45 | ObjCMethodList *getNext() const { return NextAndExtraBits.getPointer(); } |
| 46 | unsigned getBits() const { return NextAndExtraBits.getInt(); } |
| 47 | void setNext(ObjCMethodList *L) { NextAndExtraBits.setPointer(L); } |
| 48 | void setBits(unsigned B) { NextAndExtraBits.setInt(B); } |
| 49 | |
| 50 | ObjCMethodDecl *getMethod() const { |
| 51 | return MethodAndHasMoreThanOneDecl.getPointer(); |
| 52 | } |
| 53 | void setMethod(ObjCMethodDecl *M) { |
| 54 | return MethodAndHasMoreThanOneDecl.setPointer(M); |
| 55 | } |
| 56 | |
| 57 | bool hasMoreThanOneDecl() const { |
| 58 | return MethodAndHasMoreThanOneDecl.getInt(); |
| 59 | } |
| 60 | void setHasMoreThanOneDecl(bool B) { |
| 61 | return MethodAndHasMoreThanOneDecl.setInt(B); |
| 62 | } |
| 63 | }; |
| 64 | |
| 65 | } |
| 66 | |
| 67 | #endif |
| 68 |