1 //=== MangleNumberingContext.h - Context for mangling numbers ---*- 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 the LambdaBlockMangleContext interface, which keeps track
11 //  of the Itanium C++ ABI mangling numbers for lambda expressions and block
12 //  literals.
13 //
14 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_CLANG_AST_MANGLENUMBERINGCONTEXT_H
16 #define LLVM_CLANG_AST_MANGLENUMBERINGCONTEXT_H
17 
18 #include "clang/Basic/LLVM.h"
19 #include "llvm/ADT/DenseMap.h"
20 #include "llvm/ADT/IntrusiveRefCntPtr.h"
21 
22 namespace clang {
23 
24 class BlockDecl;
25 class CXXMethodDecl;
26 class IdentifierInfo;
27 class TagDecl;
28 class Type;
29 class VarDecl;
30 
31 /// \brief Keeps track of the mangled names of lambda expressions and block
32 /// literals within a particular context.
33 class MangleNumberingContext : public RefCountedBase<MangleNumberingContext> {
34 public:
~MangleNumberingContext()35   virtual ~MangleNumberingContext() {}
36 
37   /// \brief Retrieve the mangling number of a new lambda expression with the
38   /// given call operator within this context.
39   virtual unsigned getManglingNumber(const CXXMethodDecl *CallOperator) = 0;
40 
41   /// \brief Retrieve the mangling number of a new block literal within this
42   /// context.
43   virtual unsigned getManglingNumber(const BlockDecl *BD) = 0;
44 
45   /// Static locals are numbered by source order.
46   virtual unsigned getStaticLocalNumber(const VarDecl *VD) = 0;
47 
48   /// \brief Retrieve the mangling number of a static local variable within
49   /// this context.
50   virtual unsigned getManglingNumber(const VarDecl *VD,
51                                      unsigned MSLocalManglingNumber) = 0;
52 
53   /// \brief Retrieve the mangling number of a static local variable within
54   /// this context.
55   virtual unsigned getManglingNumber(const TagDecl *TD,
56                                      unsigned MSLocalManglingNumber) = 0;
57 };
58 
59 } // end namespace clang
60 #endif
61