70 lines · cpp
1//===- TapiUniversal.cpp --------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This file defines the Text-based Dynamic Library Stub format.10//11//===----------------------------------------------------------------------===//12 13#include "llvm/Object/TapiUniversal.h"14#include "llvm/ADT/StringRef.h"15#include "llvm/Object/TapiFile.h"16#include "llvm/TextAPI/TextAPIReader.h"17 18using namespace llvm;19using namespace MachO;20using namespace object;21 22TapiUniversal::TapiUniversal(MemoryBufferRef Source, Error &Err)23 : Binary(ID_TapiUniversal, Source) {24 Expected<std::unique_ptr<InterfaceFile>> Result = TextAPIReader::get(Source);25 ErrorAsOutParameter ErrAsOuParam(Err);26 if (!Result) {27 Err = Result.takeError();28 return;29 }30 ParsedFile = std::move(Result.get());31 32 auto FlattenObjectInfo = [this](const auto &File,33 std::optional<size_t> DocIdx = std::nullopt) {34 StringRef Name = File->getInstallName();35 for (const Architecture Arch : File->getArchitectures())36 Libraries.emplace_back(Library({Name, Arch, DocIdx}));37 };38 FlattenObjectInfo(ParsedFile);39 // Get inlined documents from tapi file.40 size_t DocIdx = 0;41 for (const std::shared_ptr<InterfaceFile> &File : ParsedFile->documents())42 FlattenObjectInfo(File, DocIdx++);43}44 45TapiUniversal::~TapiUniversal() = default;46 47Expected<std::unique_ptr<TapiFile>>48TapiUniversal::ObjectForArch::getAsObjectFile() const {49 const auto &InlinedDocuments = Parent->ParsedFile->documents();50 const Library &CurrLib = Parent->Libraries[Index];51 assert(52 (isTopLevelLib() || (CurrLib.DocumentIdx.has_value() &&53 (InlinedDocuments.size() > *CurrLib.DocumentIdx))) &&54 "Index into documents exceeds the container for them");55 InterfaceFile *IF = isTopLevelLib()56 ? Parent->ParsedFile.get()57 : InlinedDocuments[*CurrLib.DocumentIdx].get();58 return std::make_unique<TapiFile>(Parent->getMemoryBufferRef(), *IF,59 CurrLib.Arch);60}61 62Expected<std::unique_ptr<TapiUniversal>>63TapiUniversal::create(MemoryBufferRef Source) {64 Error Err = Error::success();65 std::unique_ptr<TapiUniversal> Ret(new TapiUniversal(Source, Err));66 if (Err)67 return std::move(Err);68 return std::move(Ret);69}70