Documentation parsing: move comment-to-XML conversion routines to libIndex
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194610 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Index/SimpleFormatContext.h b/lib/Index/SimpleFormatContext.h
new file mode 100644
index 0000000..fde43ae
--- /dev/null
+++ b/lib/Index/SimpleFormatContext.h
@@ -0,0 +1,77 @@
+//===--- SimpleFormatContext.h ----------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+/// \file
+///
+/// \brief Defines a utility class for use of clang-format in libclang
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_SIMPLE_FORM_CONTEXT_H
+#define LLVM_CLANG_SIMPLE_FORM_CONTEXT_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 {
+
+/// \brief 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.getPtr())),
+ Files((FileSystemOptions())),
+ Sources(*Diagnostics, Files),
+ Rewrite(Sources, Options) {
+ Diagnostics->setClient(new IgnoringDiagConsumer, true);
+ }
+
+ ~SimpleFormatContext() { }
+
+ FileID createInMemoryFile(StringRef Name, StringRef Content) {
+ const llvm::MemoryBuffer *Source =
+ llvm::MemoryBuffer::getMemBuffer(Content);
+ const FileEntry *Entry =
+ Files.getVirtualFile(Name, Source->getBufferSize(), 0);
+ Sources.overrideFileContents(Entry, Source, true);
+ assert(Entry != NULL);
+ 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;
+ FileManager Files;
+ SourceManager Sources;
+ Rewriter Rewrite;
+};
+
+} // end namespace index
+} // end namespace clang
+
+#endif