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/*
* Copyright 2016 WebAssembly Community Group participants
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <cassert>
#include <cstdarg>
#include <cstdint>
#include <cstdlib>
#include <cstdio>
#include <string>
#include "config.h"
#include "src/binary-writer.h"
#include "src/binary-writer-spec.h"
#include "src/common.h"
#include "src/error-formatter.h"
#include "src/feature.h"
#include "src/filenames.h"
#include "src/ir.h"
#include "src/option-parser.h"
#include "src/resolve-names.h"
#include "src/stream.h"
#include "src/validator.h"
#include "src/wast-parser.h"
using namespace wabt;
static const char* s_infile;
static std::string s_outfile;
static int s_verbose;
static WriteBinaryOptions s_write_binary_options;
static bool s_validate = true;
static bool s_debug_parsing;
static Features s_features;
static std::unique_ptr<FileStream> s_log_stream;
static const char s_description[] =
R"( read a file in the wasm spec test format, check it for errors, and
convert it to a JSON file and associated wasm binary files.
examples:
# parse spec-test.wast, and write files to spec-test.json. Modules are
# written to spec-test.0.wasm, spec-test.1.wasm, etc.
$ wast2json spec-test.wast -o spec-test.json
)";
static void ParseOptions(int argc, char* argv[]) {
OptionParser parser("wast2json", s_description);
parser.AddOption('v', "verbose", "Use multiple times for more info", []() {
s_verbose++;
s_log_stream = FileStream::CreateStderr();
});
parser.AddOption("debug-parser", "Turn on debugging the parser of wast files",
[]() { s_debug_parsing = true; });
s_features.AddOptions(&parser);
parser.AddOption('o', "output", "FILE", "output JSON file",
[](const char* argument) { s_outfile = argument; });
parser.AddOption(
'r', "relocatable",
"Create a relocatable wasm binary (suitable for linking with e.g. lld)",
[]() { s_write_binary_options.relocatable = true; });
parser.AddOption(
"no-canonicalize-leb128s",
"Write all LEB128 sizes as 5-bytes instead of their minimal size",
[]() { s_write_binary_options.canonicalize_lebs = false; });
parser.AddOption("debug-names",
"Write debug names to the generated binary file",
[]() { s_write_binary_options.write_debug_names = true; });
parser.AddOption("no-check", "Don't check for invalid modules",
[]() { s_validate = false; });
parser.AddArgument("filename", OptionParser::ArgumentCount::One,
[](const char* argument) { s_infile = argument; });
parser.Parse(argc, argv);
}
static std::string DefaultOuputName(string_view input_name) {
// Strip existing extension and add .json
std::string result(StripExtension(GetBasename(input_name)));
result += ".json";
return result;
}
int ProgramMain(int argc, char** argv) {
InitStdio();
ParseOptions(argc, argv);
std::vector<uint8_t> file_data;
Result result = ReadFile(s_infile, &file_data);
std::unique_ptr<WastLexer> lexer = WastLexer::CreateBufferLexer(
s_infile, file_data.data(), file_data.size());
if (Failed(result)) {
WABT_FATAL("unable to read file: %s\n", s_infile);
}
Errors errors;
std::unique_ptr<Script> script;
WastParseOptions parse_wast_options(s_features);
result = ParseWastScript(lexer.get(), &script, &errors, &parse_wast_options);
if (Succeeded(result) && s_validate) {
ValidateOptions options(s_features);
result = ValidateScript(script.get(), &errors, options);
}
if (Succeeded(result)) {
if (s_outfile.empty()) {
s_outfile = DefaultOuputName(s_infile);
}
std::vector<FilenameMemoryStreamPair> module_streams;
MemoryStream json_stream;
std::string output_basename = StripExtension(s_outfile).to_string();
s_write_binary_options.features = s_features;
result = WriteBinarySpecScript(&json_stream, script.get(), s_infile,
output_basename, s_write_binary_options,
&module_streams, s_log_stream.get());
if (Succeeded(result)) {
result = json_stream.WriteToFile(s_outfile);
}
if (Succeeded(result)) {
for (auto iter = module_streams.begin(); iter != module_streams.end();
++iter) {
result = iter->stream->WriteToFile(iter->filename);
if (!Succeeded(result)) {
break;
}
}
}
}
auto line_finder = lexer->MakeLineFinder();
FormatErrorsToFile(errors, Location::Type::Text, line_finder.get());
return result != Result::Ok;
}
int main(int argc, char** argv) {
WABT_TRY
return ProgramMain(argc, argv);
WABT_CATCH_BAD_ALLOC_AND_EXIT
}
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