llvm-project/clang-tools-extra/clangd/fuzzer/clangd-fuzzer.cpp

42 lines
1.4 KiB
C++

//===-- ClangdFuzzer.cpp - Fuzz clangd ------------------------------------===//
//
// 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
/// This file implements a function that runs clangd on a single input.
/// This function is then linked into the Fuzzer library.
///
//===----------------------------------------------------------------------===//
#include "ClangdLSPServer.h"
#include "ClangdServer.h"
#include "support/ThreadsafeFS.h"
#include <cstdio>
using namespace clang::clangd;
extern "C" int LLVMFuzzerTestOneInput(uint8_t *Data, size_t Size) {
if (Size == 0)
return 0;
// fmemopen isn't portable, but I think we only run the fuzzer on Linux.
std::FILE *In = fmemopen(Data, Size, "r");
auto Transport = newJSONTransport(In, llvm::nulls(),
/*InMirror=*/nullptr, /*Pretty=*/false,
/*Style=*/JSONStreamStyle::Delimited);
RealThreadsafeFS FS;
CodeCompleteOptions CCOpts;
ClangdLSPServer::Options Opts;
Opts.CodeComplete.EnableSnippets = false;
Opts.UseDirBasedCDB = false;
// Initialize and run ClangdLSPServer.
ClangdLSPServer LSPServer(*Transport, FS, Opts);
LSPServer.run();
return 0;
}