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f7fdb90fd5
* Moves how snapshots are supplied to the Isolate. Previously they were given by Behavior::startup_data() but it was only called once at startup. It makes more sense (and simplifies Behavior) to pass it to the constructor of Isolate. * Adds new libdeno type deno_snapshot instead of overloading deno_buf. * Adds new libdeno method to delete snapshot deno_snapshot_delete(). * Renames deno_get_snapshot() to deno_snapshot_new(). * Makes StartupData hold references to snapshots. This was implicit when it previously held a deno_buf but is made explicit now. Note that include_bytes!() returns a &'static [u8] and we want to avoid copying that.
45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
// Copyright 2018-2019 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 <iostream>
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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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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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deno_set_v8_flags(&argc, argv);
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CHECK_NOT_NULL(js_fn);
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CHECK_NOT_NULL(snapshot_out_bin);
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std::string js_source;
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CHECK(deno::ReadFileToString(js_fn, &js_source));
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deno_init();
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deno_config config = {1, deno::empty_snapshot, deno::empty_buf, nullptr};
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Deno* d = deno_new(config);
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deno_execute(d, nullptr, js_fn, js_source.c_str());
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if (deno_last_exception(d) != nullptr) {
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std::cerr << "Snapshot Exception " << std::endl;
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std::cerr << deno_last_exception(d) << std::endl;
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deno_delete(d);
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return 1;
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}
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auto snapshot = deno_snapshot_new(d);
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std::ofstream file_(snapshot_out_bin, std::ios::binary);
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file_.write(reinterpret_cast<char*>(snapshot.data_ptr), snapshot.data_len);
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file_.close();
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deno_snapshot_delete(snapshot);
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deno_delete(d);
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return file_.bad();
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}
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