1//=== MangleNumberingContext.h - Context for mangling numbers ---*- 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 the LambdaBlockMangleContext interface, which keeps track
10//  of the Itanium C++ ABI mangling numbers for lambda expressions and block
11//  literals.
12//
13//===----------------------------------------------------------------------===//
14#ifndef LLVM_CLANG_AST_MANGLENUMBERINGCONTEXT_H
15#define LLVM_CLANG_AST_MANGLENUMBERINGCONTEXT_H
16
17#include "clang/Basic/LLVM.h"
18#include "llvm/ADT/IntrusiveRefCntPtr.h"
19
20namespace clang {
21
22class BlockDecl;
23class CXXMethodDecl;
24class TagDecl;
25class VarDecl;
26
27/// Keeps track of the mangled names of lambda expressions and block
28/// literals within a particular context.
29class MangleNumberingContext {
30public:
31  virtual ~MangleNumberingContext() {}
32
33  /// Retrieve the mangling number of a new lambda expression with the
34  /// given call operator within this context.
35  virtual unsigned getManglingNumber(const CXXMethodDecl *CallOperator) = 0;
36
37  /// Retrieve the mangling number of a new block literal within this
38  /// context.
39  virtual unsigned getManglingNumber(const BlockDecl *BD) = 0;
40
41  /// Static locals are numbered by source order.
42  virtual unsigned getStaticLocalNumber(const VarDecl *VD) = 0;
43
44  /// Retrieve the mangling number of a static local variable within
45  /// this context.
46  virtual unsigned getManglingNumber(const VarDecl *VD,
47                                     unsigned MSLocalManglingNumber) = 0;
48
49  /// Retrieve the mangling number of a static local variable within
50  /// this context.
51  virtual unsigned getManglingNumber(const TagDecl *TD,
52                                     unsigned MSLocalManglingNumber) = 0;
53
54  /// Retrieve the mangling number of a new lambda expression with the
55  /// given call operator within the device context. No device number is
56  /// assigned if there's no device numbering context is associated.
57  virtual unsigned getDeviceManglingNumber(const CXXMethodDecl *) { return 0; }
58};
59
60} // end namespace clang
61#endif
62