forked from OSchip/llvm-project
85 lines
2.9 KiB
C++
85 lines
2.9 KiB
C++
//===--- Compiler.cpp --------------------------------------------*- C++-*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "Compiler.h"
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#include "Logger.h"
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#include "clang/Basic/TargetInfo.h"
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#include "clang/Lex/PreprocessorOptions.h"
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#include "llvm/Support/Format.h"
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#include "llvm/Support/FormatVariadic.h"
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using namespace llvm;
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namespace clang {
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namespace clangd {
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void IgnoreDiagnostics::log(DiagnosticsEngine::Level DiagLevel,
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const clang::Diagnostic &Info) {
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// FIXME: format lazily, in case vlog is off.
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SmallString<64> Message;
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Info.FormatDiagnostic(Message);
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SmallString<64> Location;
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if (Info.hasSourceManager() && Info.getLocation().isValid()) {
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auto &SourceMgr = Info.getSourceManager();
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auto Loc = SourceMgr.getFileLoc(Info.getLocation());
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raw_svector_ostream OS(Location);
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Loc.print(OS, SourceMgr);
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OS << ":";
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}
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clangd::vlog("Ignored diagnostic. {0}{1}", Location, Message);
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}
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void IgnoreDiagnostics::HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
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const clang::Diagnostic &Info) {
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IgnoreDiagnostics::log(DiagLevel, Info);
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}
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std::unique_ptr<CompilerInstance> prepareCompilerInstance(
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std::unique_ptr<clang::CompilerInvocation> CI,
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const PrecompiledPreamble *Preamble, std::unique_ptr<MemoryBuffer> Buffer,
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std::shared_ptr<PCHContainerOperations> PCHs,
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IntrusiveRefCntPtr<vfs::FileSystem> VFS, DiagnosticConsumer &DiagsClient) {
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assert(VFS && "VFS is null");
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assert(!CI->getPreprocessorOpts().RetainRemappedFileBuffers &&
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"Setting RetainRemappedFileBuffers to true will cause a memory leak "
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"of ContentsBuffer");
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// NOTE: we use Buffer.get() when adding remapped files, so we have to make
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// sure it will be released if no error is emitted.
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if (Preamble) {
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Preamble->OverridePreamble(*CI, VFS, Buffer.get());
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} else {
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CI->getPreprocessorOpts().addRemappedFile(
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CI->getFrontendOpts().Inputs[0].getFile(), Buffer.get());
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}
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auto Clang = llvm::make_unique<CompilerInstance>(PCHs);
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Clang->setInvocation(std::move(CI));
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Clang->createDiagnostics(&DiagsClient, false);
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if (auto VFSWithRemapping = createVFSFromCompilerInvocation(
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Clang->getInvocation(), Clang->getDiagnostics(), VFS))
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VFS = VFSWithRemapping;
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Clang->setVirtualFileSystem(VFS);
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Clang->setTarget(TargetInfo::CreateTargetInfo(
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Clang->getDiagnostics(), Clang->getInvocation().TargetOpts));
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if (!Clang->hasTarget())
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return nullptr;
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// RemappedFileBuffers will handle the lifetime of the Buffer pointer,
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// release it.
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Buffer.release();
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return Clang;
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}
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} // namespace clangd
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} // namespace clang
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