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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
//===--- SimpleFormatContext.h ----------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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/// \file
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///
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/// Defines a utility class for use of clang-format in libclang
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_LIB_INDEX_SIMPLEFORMATCONTEXT_H
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#define LLVM_CLANG_LIB_INDEX_SIMPLEFORMATCONTEXT_H
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#include "clang/Basic/Diagnostic.h"
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#include "clang/Basic/DiagnosticOptions.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Basic/LangOptions.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Rewrite/Core/Rewriter.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/raw_ostream.h"
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namespace clang {
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namespace index {
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/// A small class to be used by libclang clients to format
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/// a declaration string in memory. This object is instantiated once
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/// and used each time a formatting is needed.
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class SimpleFormatContext {
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public:
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SimpleFormatContext(LangOptions Options)
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: DiagOpts(new DiagnosticOptions()),
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Diagnostics(new DiagnosticsEngine(new DiagnosticIDs, DiagOpts.get())),
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InMemoryFileSystem(new llvm::vfs::InMemoryFileSystem),
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Files(FileSystemOptions(), InMemoryFileSystem),
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Sources(*Diagnostics, Files), Rewrite(Sources, Options) {
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Diagnostics->setClient(new IgnoringDiagConsumer, true);
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}
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FileID createInMemoryFile(StringRef Name, StringRef Content) {
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InMemoryFileSystem->addFile(Name, 0,
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llvm::MemoryBuffer::getMemBuffer(Content));
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const FileEntry *Entry = Files.getFile(Name);
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assert(Entry != nullptr);
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return Sources.createFileID(Entry, SourceLocation(), SrcMgr::C_User);
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}
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std::string getRewrittenText(FileID ID) {
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std::string Result;
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llvm::raw_string_ostream OS(Result);
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Rewrite.getEditBuffer(ID).write(OS);
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OS.flush();
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return Result;
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}
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IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts;
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IntrusiveRefCntPtr<DiagnosticsEngine> Diagnostics;
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IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> InMemoryFileSystem;
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FileManager Files;
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SourceManager Sources;
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Rewriter Rewrite;
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};
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} // end namespace index
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} // end namespace clang
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#endif
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