//==--- CodeGenABITypes.cpp - Convert Clang types to LLVM types for ABI ----==//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// CodeGenABITypes is a simple interface for getting LLVM types for
// the parameters and the return value of a function given the Clang
// types.
//
// The class is implemented as a public wrapper around the private
// CodeGenTypes class in lib/CodeGen.
//
//===----------------------------------------------------------------------===//

#include "clang/CodeGen/CodeGenABITypes.h"
#include "CodeGenModule.h"
#include "clang/CodeGen/CGFunctionInfo.h"
#include "clang/Frontend/CodeGenOptions.h"
#include "clang/Lex/HeaderSearchOptions.h"
#include "clang/Lex/PreprocessorOptions.h"

using namespace clang;
using namespace CodeGen;

CodeGenABITypes::CodeGenABITypes(ASTContext &C, llvm::Module &M,
                                 CoverageSourceInfo *CoverageInfo)
    : CGO(new CodeGenOptions), HSO(new HeaderSearchOptions),
      PPO(new PreprocessorOptions),
      CGM(new CodeGen::CodeGenModule(C, *HSO, *PPO, *CGO, M, C.getDiagnostics(),
                                     CoverageInfo)) {}

// Explicitly out-of-line because ~CodeGenModule() is private but
// CodeGenABITypes.h is part of clang's API.
CodeGenABITypes::~CodeGenABITypes() = default;

const CGFunctionInfo &
CodeGenABITypes::arrangeObjCMessageSendSignature(const ObjCMethodDecl *MD,
                                                 QualType receiverType) {
  return CGM->getTypes().arrangeObjCMessageSendSignature(MD, receiverType);
}

const CGFunctionInfo &
CodeGenABITypes::arrangeFreeFunctionType(CanQual<FunctionProtoType> Ty,
                                         const FunctionDecl *FD) {
  return CGM->getTypes().arrangeFreeFunctionType(Ty, FD);
}

const CGFunctionInfo &
CodeGenABITypes::arrangeFreeFunctionType(CanQual<FunctionNoProtoType> Ty) {
  return CGM->getTypes().arrangeFreeFunctionType(Ty);
}

const CGFunctionInfo &
CodeGenABITypes::arrangeCXXMethodType(const CXXRecordDecl *RD,
                                      const FunctionProtoType *FTP,
                                      const CXXMethodDecl *MD) {
  return CGM->getTypes().arrangeCXXMethodType(RD, FTP, MD);
}

const CGFunctionInfo &CodeGenABITypes::arrangeFreeFunctionCall(
    CanQualType returnType, ArrayRef<CanQualType> argTypes,
    FunctionType::ExtInfo info, RequiredArgs args) {
  return CGM->getTypes().arrangeLLVMFunctionInfo(
      returnType, /*IsInstanceMethod=*/false, /*IsChainCall=*/false, argTypes,
      info, args);
}