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_MANGLENUMBERINGCONTEXT_H 16 #define LLVM_CLANG_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 34 : public RefCountedBase<MangleNumberingContext> { 35 llvm::DenseMap<const Type *, unsigned> ManglingNumbers; 36 37 public: ~MangleNumberingContext()38 virtual ~MangleNumberingContext() {} 39 40 /// \brief Retrieve the mangling number of a new lambda expression with the 41 /// given call operator within this context. 42 unsigned getManglingNumber(const CXXMethodDecl *CallOperator); 43 44 /// \brief Retrieve the mangling number of a new block literal within this 45 /// context. 46 unsigned getManglingNumber(const BlockDecl *BD); 47 48 /// Static locals are numbered by source order. 49 unsigned getStaticLocalNumber(const VarDecl *VD); 50 51 /// \brief Retrieve the mangling number of a static local variable within 52 /// this context. 53 virtual unsigned getManglingNumber(const VarDecl *VD, 54 unsigned MSLocalManglingNumber) = 0; 55 56 /// \brief Retrieve the mangling number of a static local variable within 57 /// this context. 58 virtual unsigned getManglingNumber(const TagDecl *TD, 59 unsigned MSLocalManglingNumber) = 0; 60 }; 61 62 } // end namespace clang 63 #endif 64