llvm-project/clang/lib/AST/LambdaMangleContext.cpp

34 lines
1.3 KiB
C++

//===--- LambdaMangleContext.cpp - Context for mangling lambdas -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the LambdaMangleContext class, which keeps track of
// the Itanium C++ ABI mangling numbers for lambda expressions.
//
//===----------------------------------------------------------------------===//
#include "clang/AST/LambdaMangleContext.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclCXX.h"
using namespace clang;
unsigned LambdaMangleContext::getManglingNumber(CXXMethodDecl *CallOperator) {
const FunctionProtoType *Proto
= CallOperator->getType()->getAs<FunctionProtoType>();
ASTContext &Context = CallOperator->getASTContext();
QualType Key =
Context.getFunctionType(Context.VoidTy,
ArrayRef<QualType>(Proto->arg_type_begin(),
Proto->getNumArgs()),
FunctionProtoType::ExtProtoInfo());
Key = Context.getCanonicalType(Key);
return ++ManglingNumbers[Key->castAs<FunctionProtoType>()];
}