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680caf1535
The list of environments to support with wasm_exec.js was becoming too large to maintain. With this change, wasm_exec.js expects that the environment provides all necessary polyfills. The standardized "globalThis" is used for accessing the environment. wasm_exec.js now only provides stub fallbacks for globalThis.fs and globalThis.process. All code specific to Node.js is now in a separate file. Change-Id: I076febbd94d4d7845260faad972f450f74a7b983 Reviewed-on: https://go-review.googlesource.com/c/go/+/347353 Trust: Richard Musiol <neelance@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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"use strict";
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if (process.argv.length < 3) {
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console.error("usage: go_js_wasm_exec [wasm binary] [arguments]");
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process.exit(1);
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}
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globalThis.require = require;
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globalThis.fs = require("fs");
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globalThis.TextEncoder = require("util").TextEncoder;
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globalThis.TextDecoder = require("util").TextDecoder;
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globalThis.performance = {
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now() {
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const [sec, nsec] = process.hrtime();
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return sec * 1000 + nsec / 1000000;
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},
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};
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const crypto = require("crypto");
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globalThis.crypto = {
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getRandomValues(b) {
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crypto.randomFillSync(b);
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},
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};
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require("./wasm_exec");
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const go = new Go();
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go.argv = process.argv.slice(2);
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go.env = Object.assign({ TMPDIR: require("os").tmpdir() }, process.env);
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go.exit = process.exit;
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WebAssembly.instantiate(fs.readFileSync(process.argv[2]), go.importObject).then((result) => {
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process.on("exit", (code) => { // Node.js exits if no event handler is pending
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if (code === 0 && !go.exited) {
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// deadlock, make Go print error and stack traces
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go._pendingEvent = { id: 0 };
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go._resume();
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}
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});
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return go.run(result.instance);
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}).catch((err) => {
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console.error(err);
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process.exit(1);
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});
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