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/*
* Copyright 2019 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.
*/
//
// Write the module to binary, and load it from there. This is useful in
// testing to check for the effects of roundtripping in a single wasm-opt
// parameter.
//
#ifdef _WIN32
#include <io.h>
#endif
#include <cstdlib>
#include <vector>
#include "ir/module-utils.h"
#include "pass.h"
#include "support/file.h"
#include "wasm-io.h"
#include "wasm.h"
using namespace std;
namespace wasm {
struct RoundTrip : public Pass {
void run(PassRunner* runner, Module* module) override {
std::string templateName = "byn_round_trip_XXXXXX";
std::vector<char> buffer(templateName.begin(), templateName.end());
buffer.push_back(0);
#ifndef _WIN32
auto fd = mkstemp(buffer.data());
WASM_UNUSED(fd);
std::string tempName(buffer.begin(), buffer.end());
#else
std::string tempName = _mktemp(buffer.data());
#endif
// Write
ModuleWriter writer;
writer.setBinary(true);
writer.setDebugInfo(runner->options.debugInfo);
writer.write(*module, tempName);
// Read
ModuleUtils::clearModule(*module);
ModuleReader reader;
reader.setDWARF(runner->options.debugInfo);
reader.read(tempName, *module);
// Clean up
std::remove(tempName.c_str());
}
};
Pass* createRoundTripPass() { return new RoundTrip(); }
} // namespace wasm
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