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      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/IntrusiveRefCntPtr.h"
     20 
     21 namespace clang {
     22 
     23 class BlockDecl;
     24 class CXXMethodDecl;
     25 class IdentifierInfo;
     26 class TagDecl;
     27 class Type;
     28 class VarDecl;
     29 
     30 /// \brief Keeps track of the mangled names of lambda expressions and block
     31 /// literals within a particular context.
     32 class MangleNumberingContext {
     33 public:
     34   virtual ~MangleNumberingContext() {}
     35 
     36   /// \brief Retrieve the mangling number of a new lambda expression with the
     37   /// given call operator within this context.
     38   virtual unsigned getManglingNumber(const CXXMethodDecl *CallOperator) = 0;
     39 
     40   /// \brief Retrieve the mangling number of a new block literal within this
     41   /// context.
     42   virtual unsigned getManglingNumber(const BlockDecl *BD) = 0;
     43 
     44   /// Static locals are numbered by source order.
     45   virtual unsigned getStaticLocalNumber(const VarDecl *VD) = 0;
     46 
     47   /// \brief Retrieve the mangling number of a static local variable within
     48   /// this context.
     49   virtual unsigned getManglingNumber(const VarDecl *VD,
     50                                      unsigned MSLocalManglingNumber) = 0;
     51 
     52   /// \brief Retrieve the mangling number of a static local variable within
     53   /// this context.
     54   virtual unsigned getManglingNumber(const TagDecl *TD,
     55                                      unsigned MSLocalManglingNumber) = 0;
     56 };
     57 
     58 } // end namespace clang
     59 #endif
     60