mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 19:50:14 +01:00
josh11bandJosh L
47bfa375af
As discussed in #4530 . This required switching to using `llvm::IntrusiveRefCntPtr` in a number of places. --------- Co-authored-by: Josh L <josh11b@users.noreply.github.com>
55 lines
2.0 KiB
C++
55 lines
2.0 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
|
|
// Exceptions. See /LICENSE for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
|
|
#include "common/exe_path.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/Support/MemoryBuffer.h"
|
|
#include "llvm/Support/VirtualFileSystem.h"
|
|
#include "testing/fuzzing/libfuzzer.h"
|
|
#include "toolchain/driver/driver.h"
|
|
|
|
namespace Carbon::Testing {
|
|
|
|
static const InstallPaths* install_paths = nullptr;
|
|
|
|
// NOLINTNEXTLINE(readability-non-const-parameter): External API required types.
|
|
extern "C" auto LLVMFuzzerInitialize(int* argc, char*** argv) -> int {
|
|
CARBON_CHECK(*argc >= 1, "Need the `argv[0]` value to initialize!");
|
|
install_paths = new InstallPaths(
|
|
InstallPaths::MakeForBazelRunfiles(FindExecutablePath((*argv)[0])));
|
|
return 0;
|
|
}
|
|
|
|
// NOLINTNEXTLINE: Match the documented fuzzer entry point declaration style.
|
|
extern "C" int LLVMFuzzerTestOneInput(const unsigned char* data,
|
|
std::size_t size) {
|
|
// Ignore large inputs.
|
|
// TODO: See tokenized_buffer_fuzzer.cpp.
|
|
if (size > 100000) {
|
|
return 0;
|
|
}
|
|
|
|
static constexpr llvm::StringLiteral TestFileName = "test.carbon";
|
|
llvm::IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> fs =
|
|
new llvm::vfs::InMemoryFileSystem;
|
|
llvm::StringRef data_ref(reinterpret_cast<const char*>(data), size);
|
|
CARBON_CHECK(fs->addFile(
|
|
TestFileName, /*ModificationTime=*/0,
|
|
llvm::MemoryBuffer::getMemBuffer(data_ref, /*BufferName=*/TestFileName,
|
|
/*RequiresNullTerminator=*/false)));
|
|
|
|
llvm::raw_null_ostream null_ostream;
|
|
Driver driver(fs, install_paths, null_ostream, null_ostream);
|
|
|
|
// TODO: Get checking to a point where it can handle invalid parse trees
|
|
// without crashing.
|
|
if (!driver.RunCommand({"compile", "--phase=parse", TestFileName}).success) {
|
|
return 0;
|
|
}
|
|
driver.RunCommand({"compile", "--phase=check", TestFileName});
|
|
return 0;
|
|
}
|
|
|
|
} // namespace Carbon::Testing
|