mirror of
https://github.com/golang/go
synced 2024-11-23 18:30:06 -07:00
1771edb590
This commit improves wasm_exec.js to give more control to the code that uses this helper: - Allow to load and run more than one Go program at the same time. - Move WebAssembly.instantiate out of wasm_exec.js so the caller can optimize for load-time performance, e.g. by using instantiateStreaming. - Allow caller to provide argv, env and exit callback. Updates #18892 Change-Id: Ib582e6f43848c0118ea5c89f2e24b371c45c2050 Reviewed-on: https://go-review.googlesource.com/113515 Reviewed-by: Agniva De Sarker <agniva.quicksilver@gmail.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
42 lines
1.0 KiB
HTML
42 lines
1.0 KiB
HTML
<!doctype html>
|
|
<!--
|
|
Copyright 2018 The Go Authors. All rights reserved.
|
|
Use of this source code is governed by a BSD-style
|
|
license that can be found in the LICENSE file.
|
|
-->
|
|
<html>
|
|
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<title>Go wasm</title>
|
|
</head>
|
|
|
|
<body>
|
|
<script src="wasm_exec.js"></script>
|
|
<script>
|
|
if (!WebAssembly.instantiateStreaming) { // polyfill
|
|
WebAssembly.instantiateStreaming = async (resp, importObject) => {
|
|
const source = await (await resp).arrayBuffer();
|
|
return await WebAssembly.instantiate(source, importObject);
|
|
};
|
|
}
|
|
|
|
const go = new Go();
|
|
let mod, inst;
|
|
WebAssembly.instantiateStreaming(fetch("test.wasm"), go.importObject).then((result) => {
|
|
mod = result.module;
|
|
inst = result.instance;
|
|
document.getElementById("runButton").disabled = false;
|
|
});
|
|
|
|
async function run() {
|
|
console.clear();
|
|
await go.run(inst);
|
|
inst = await WebAssembly.instantiate(mod, go.importObject); // reset instance
|
|
}
|
|
</script>
|
|
|
|
<button onClick="run();" id="runButton" disabled>Run</button>
|
|
</body>
|
|
|
|
</html> |