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1 //===--- MangleNumberingContext.cpp - Context for mangling numbers --------===//
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 
15 #include "clang/AST/MangleNumberingContext.h"
16 #include "clang/AST/ASTContext.h"
17 #include "clang/AST/DeclCXX.h"
18 
19 using namespace clang;
20 
21 unsigned
getManglingNumber(const CXXMethodDecl * CallOperator)22 MangleNumberingContext::getManglingNumber(const CXXMethodDecl *CallOperator) {
23   const FunctionProtoType *Proto
24     = CallOperator->getType()->getAs<FunctionProtoType>();
25   ASTContext &Context = CallOperator->getASTContext();
26 
27   QualType Key = Context.getFunctionType(Context.VoidTy, Proto->getParamTypes(),
28                                          FunctionProtoType::ExtProtoInfo());
29   Key = Context.getCanonicalType(Key);
30   return ++ManglingNumbers[Key->castAs<FunctionProtoType>()];
31 }
32 
33 unsigned
getManglingNumber(const BlockDecl * BD)34 MangleNumberingContext::getManglingNumber(const BlockDecl *BD) {
35   // FIXME: Compute a BlockPointerType?  Not obvious how.
36   const Type *Ty = nullptr;
37   return ++ManglingNumbers[Ty];
38 }
39 
40 unsigned
getStaticLocalNumber(const VarDecl * VD)41 MangleNumberingContext::getStaticLocalNumber(const VarDecl *VD) {
42   // FIXME: Compute a BlockPointerType?  Not obvious how.
43   const Type *Ty = nullptr;
44   return ++ManglingNumbers[Ty];
45 }
46