Home | History | Annotate | Download | only in AST
      1 //===--- LambdaMangleContext.cpp - Context for mangling lambdas -*- 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 LambdaMangleContext class, which keeps track of
     11 //  the Itanium C++ ABI mangling numbers for lambda expressions.
     12 //
     13 //===----------------------------------------------------------------------===//
     14 #include "clang/AST/LambdaMangleContext.h"
     15 #include "clang/AST/DeclCXX.h"
     16 
     17 using namespace clang;
     18 
     19 unsigned LambdaMangleContext::getManglingNumber(CXXMethodDecl *CallOperator) {
     20   const FunctionProtoType *Proto
     21     = CallOperator->getType()->getAs<FunctionProtoType>();
     22   ASTContext &Context = CallOperator->getASTContext();
     23 
     24   QualType Key = Context.getFunctionType(Context.VoidTy,
     25                                          Proto->arg_type_begin(),
     26                                          Proto->getNumArgs(),
     27                                          FunctionProtoType::ExtProtoInfo());
     28   Key = Context.getCanonicalType(Key);
     29   return ++ManglingNumbers[Key->castAs<FunctionProtoType>()];
     30 }
     31