Files
carbon-lang/testing/fuzzing/proto_to_carbon_main.cpp
T
Chandler Carruth 8c64f0bfdd Add -Wmissing-prototypes and fix issues it finds. (#4019)
Most of these are places where we failed to include a header file and
simply never got an error about this. The fix is to include the header
file.

Most other cases are functions that should have been marked `static` but
were not. Finding all of these was a main motivation for me enabling the
warning despite how much work it is.

One complicating factor was that we weren't including the `handle.h` for
all the state-based handler functions. While this isn't a tiny amount of
code, it is just declarations and doesn't add any extra dependencies. It
also lets us have the checking for which functions need to be `static`
and which don't. For the `parse` library I had to add the `handle.h`
header as well, I tried to match the design of it in `check`.

I have also had to work around a bug in the warning, but given the value
it seems to be providing, that seems reasonable. I've filed the bug
upstream: https://github.com/llvm/llvm-project/issues/94138

I also had to use some hacks to work around limitations of Bazel rules
that wrap `cc_library` rules and don't expose `copts`. I filed a bug for
`cc_proto_library` specifically:
~https://github.com/bazelbuild/bazel/issues/22610~ 
https://github.com/bazelbuild/bazel/issues/4446
2024-06-04 20:04:45 +00:00

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// 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
// To convert a crashing input in text proto to Carbon source:
// `proto_to_carbon <file.textproto>`
#include <google/protobuf/text_format.h>
#include <fstream>
#include <iostream>
#include <sstream>
#include "common/bazel_working_dir.h"
#include "common/error.h"
#include "testing/fuzzing/proto_to_carbon.h"
namespace Carbon {
static auto Main(int argc, char** argv) -> ErrorOr<Success> {
Carbon::SetWorkingDirForBazel();
if (argc != 2) {
return Error("Syntax: proto_to_carbon <file.textproto>");
}
if (!std::filesystem::is_regular_file(argv[1])) {
return Error("Argument must be a file.");
}
// Read the input file.
std::ifstream proto_file(argv[1]);
std::stringstream buffer;
buffer << proto_file.rdbuf();
proto_file.close();
CARBON_ASSIGN_OR_RETURN(Fuzzing::Carbon proto,
Carbon::ParseCarbonTextProto(buffer.str()));
std::cout << Carbon::ProtoToCarbon(proto, /*maybe_add_main=*/true);
return Success();
}
} // namespace Carbon
auto main(int argc, char** argv) -> int {
auto err = Carbon::Main(argc, argv);
if (!err.ok()) {
std::cerr << err.error().message() << "\n";
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}