mirror of
https://github.com/denoland/deno
synced 2024-10-13 03:22:31 +00:00
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
// Copyright 2018 the Deno authors. All rights reserved. MIT license.
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// Hint: --trace_serializer is a useful debugging flag.
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#include <fstream>
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#include "deno.h"
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#include "file_util.h"
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#include "internal.h"
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#include "third_party/v8/include/v8.h"
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#include "third_party/v8/src/base/logging.h"
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namespace deno {} // namespace deno
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int main(int argc, char** argv) {
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const char* snapshot_out_bin = argv[1];
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const char* js_fn = argv[2];
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const char* source_map_fn = argv[3]; // Optional.
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v8::V8::SetFlagsFromCommandLine(&argc, argv, true);
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CHECK_NE(js_fn, nullptr);
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CHECK_NE(snapshot_out_bin, nullptr);
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std::string js_source;
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CHECK(deno::ReadFileToString(js_fn, &js_source));
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std::string source_map;
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if (source_map_fn != nullptr) {
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CHECK_EQ(argc, 4);
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CHECK(deno::ReadFileToString(source_map_fn, &source_map));
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}
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deno_init();
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Deno* d = deno_new_snapshotter(
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deno::empty_buf, nullptr, js_fn, js_source.c_str(),
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source_map_fn != nullptr ? source_map.c_str() : nullptr);
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auto snapshot = deno_get_snapshot(d);
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std::string snapshot_str(reinterpret_cast<char*>(snapshot.data_ptr),
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snapshot.data_len);
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std::ofstream file_(snapshot_out_bin, std::ios::binary);
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file_ << snapshot_str;
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file_.close();
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return file_.bad();
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}
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