ccls/src/messages/text_document_formatting.cc
Daniel Martín 19341c18cd Basic implementation of document formatting
Still some important TODOs to address:

- Improve the algorithm that converts between offsets and line/column
  pairs. Right now it's extremely naive.
- Add proper support for a .clang-format file that specifies
  the coding style.
2017-12-31 13:30:34 +01:00

53 lines
1.8 KiB
C++

#include "clang_format.h"
#include "message_handler.h"
namespace {
struct Ipc_TextDocumentFormatting
: public IpcMessage<Ipc_TextDocumentFormatting> {
const static IpcId kIpcId = IpcId::TextDocumentFormatting;
lsRequestId id;
lsTextDocumentFormattingParams params;
};
MAKE_REFLECT_STRUCT(Ipc_TextDocumentFormatting, id, params);
REGISTER_IPC_MESSAGE(Ipc_TextDocumentFormatting);
struct Out_TextDocumentFormatting
: public lsOutMessage<Out_TextDocumentFormatting> {
lsRequestId id;
std::vector<lsTextEdit> result;
};
MAKE_REFLECT_STRUCT(Out_TextDocumentFormatting, jsonrpc, id, result);
struct TextDocumentFormattingHandler
: BaseMessageHandler<Ipc_TextDocumentFormatting> {
void Run(Ipc_TextDocumentFormatting* request) override {
QueryFile* file;
if (!FindFileOrFail(db, project, request->id,
request->params.textDocument.uri.GetPath(), &file)) {
return;
}
WorkingFile* working_file =
working_files->GetFileByFilename(file->def->path);
int tab_size = request->params.formattingOptions.tabSize;
bool insert_spaces = request->params.formattingOptions.insertSpaces;
Out_TextDocumentFormatting response;
response.id = request->id;
const auto clang_format = std::unique_ptr<ClangFormat>(new ClangFormat(
working_file->filename, working_file->buffer_content,
{clang::tooling::Range(0, working_file->buffer_content.size())},
tab_size, insert_spaces));
const auto replacements = clang_format->FormatWholeDocument();
response.result = ConvertClangReplacementsIntoTextEdits(
working_file->buffer_content, replacements);
QueueManager::WriteStdout(IpcId::TextDocumentFormatting, response);
}
};
REGISTER_MESSAGE_HANDLER(TextDocumentFormattingHandler);
} // namespace