forked from OSchip/llvm-project
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
//===--- SimpleFormatContext.h ----------------------------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
/// \file
|
|
///
|
|
/// Defines a utility class for use of clang-format in libclang
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CLANG_LIB_INDEX_SIMPLEFORMATCONTEXT_H
|
|
#define LLVM_CLANG_LIB_INDEX_SIMPLEFORMATCONTEXT_H
|
|
|
|
#include "clang/Basic/Diagnostic.h"
|
|
#include "clang/Basic/DiagnosticOptions.h"
|
|
#include "clang/Basic/FileManager.h"
|
|
#include "clang/Basic/LangOptions.h"
|
|
#include "clang/Basic/SourceManager.h"
|
|
#include "clang/Rewrite/Core/Rewriter.h"
|
|
#include "llvm/Support/FileSystem.h"
|
|
#include "llvm/Support/Path.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
|
|
namespace clang {
|
|
namespace index {
|
|
|
|
/// A small class to be used by libclang clients to format
|
|
/// a declaration string in memory. This object is instantiated once
|
|
/// and used each time a formatting is needed.
|
|
class SimpleFormatContext {
|
|
public:
|
|
SimpleFormatContext(LangOptions Options)
|
|
: DiagOpts(new DiagnosticOptions()),
|
|
Diagnostics(new DiagnosticsEngine(new DiagnosticIDs, DiagOpts.get())),
|
|
InMemoryFileSystem(new llvm::vfs::InMemoryFileSystem),
|
|
Files(FileSystemOptions(), InMemoryFileSystem),
|
|
Sources(*Diagnostics, Files), Rewrite(Sources, Options) {
|
|
Diagnostics->setClient(new IgnoringDiagConsumer, true);
|
|
}
|
|
|
|
FileID createInMemoryFile(StringRef Name, StringRef Content) {
|
|
InMemoryFileSystem->addFile(Name, 0,
|
|
llvm::MemoryBuffer::getMemBuffer(Content));
|
|
const FileEntry *Entry = Files.getFile(Name);
|
|
assert(Entry != nullptr);
|
|
return Sources.createFileID(Entry, SourceLocation(), SrcMgr::C_User);
|
|
}
|
|
|
|
std::string getRewrittenText(FileID ID) {
|
|
std::string Result;
|
|
llvm::raw_string_ostream OS(Result);
|
|
Rewrite.getEditBuffer(ID).write(OS);
|
|
OS.flush();
|
|
return Result;
|
|
}
|
|
|
|
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts;
|
|
IntrusiveRefCntPtr<DiagnosticsEngine> Diagnostics;
|
|
IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> InMemoryFileSystem;
|
|
FileManager Files;
|
|
SourceManager Sources;
|
|
Rewriter Rewrite;
|
|
};
|
|
|
|
} // end namespace index
|
|
} // end namespace clang
|
|
|
|
#endif
|