Added forgejo build and removed target

This commit is contained in:
Leon Mika 2025-09-26 08:42:27 +10:00
parent da72304428
commit 9cd2ed90e8
13 changed files with 26 additions and 935 deletions

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on:
push:
jobs:
publish:
runs-on: docker
env:
NETLIFY_SITE_ID: da2ef727-4297-4fb9-8735-0cc2c6bef2b5
NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
steps:
- name: Checkout
uses: actions/checkout@v3
- name: Setup Node
uses: actions/setup-node@v4
with:
node-version: 21.1
- name: Setup Go
uses: actions/setup-go@v3
with:
go-version: '1.23.2'
- name: Build
run: |
make
- name: Deploy
run: |
netlify deploy --dir target --prod

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Clocks - Tools</title>
<link
rel="stylesheet"
href="https://cdn.jsdelivr.net/npm/@picocss/pico@2/css/pico.min.css"
>
<link rel="stylesheet" href="style.css">
</head>
<body class="container">
<header>
<hgroup>
<h1>Two-letter Country Codes</h1>
<p>Browser for ISO 3166-1</p>
</hgroup>
</header>
<div class="filter">
<input placeholder="Filter" id="filter">
</div>
<table id="country-list">
<thead>
<tr>
<th class="code-column">Code</th>
<th>Country</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
<script src="main.js" type="module"></script>
</body>
</html>

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async function getCountryData() {
let countryData = await fetch(`cclist.json`);
let countryList = await countryData.json();
let countryTableBody = document.querySelector("#country-list tbody");
for (let co of countryList) {
let newTR = document.createElement("tr");
newTR.dataset["code"] = co.Code.toLowerCase();
newTR.dataset["name"] = co.Name.toLowerCase();
newTR.dataset["role"] = "country";
let newTD = document.createElement("td");
newTD.textContent = co.Code;
newTR.appendChild(newTD);
newTD = document.createElement("td");
newTD.textContent = co.Name;
newTR.appendChild(newTD);
countryTableBody.appendChild(newTR);
}
};
function applyFilter(fval) {
if (fval == "") {
document.querySelectorAll('tr[data-role="country"]').forEach((x) => {
x.classList.remove("hidden", "exact");
})
}
const fvalLower = fval.toLowerCase();
document.querySelectorAll('tr[data-role="country"]').forEach((x) => {
const matches = (x.dataset["code"].indexOf(fvalLower) != -1) ||
(x.dataset["name"].indexOf(fvalLower) != -1);
if (!matches) {
x.classList.add("hidden");
x.classList.remove("exact");
} else {
x.classList.remove("hidden");
if ((x.dataset["code"] == fvalLower) || (x.dataset["name"] == fvalLower)) {
x.classList.add("exact");
} else {
x.classList.remove("exact");
}
}
})
}
function setupCountryFilter() {
let lastFilterValue = "";
let filter = document.querySelector("#filter");
filter.addEventListener("keyup", (ev) => {
ev.preventDefault();
if (filter.value == lastFilterValue) {
return;
}
lastFilterValue = filter.value;
applyFilter(filter.value);
});
}
document.addEventListener("DOMContentLoaded", () => {
getCountryData();
setupCountryFilter();
});

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table#country-list {
table-layout: fixed;
}
table#country-list th.code-column {
width: 6em;
}
table#country-list tr.hidden {
display: none;
}
table#country-list tr.exact td {
background-color: rgb(237, 201, 241);
}

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Clocks - Tools</title>
<link
rel="stylesheet"
href="https://cdn.jsdelivr.net/npm/@picocss/pico@2/css/pico.min.css"
>
<link rel="stylesheet" href="style.css">
</head>
<body class="container">
<header>
<hgroup>
<h1>Clocks</h1>
<p>Various time zones</p>
</hgroup>
</header>
<div class="grid">
<div class="clock" id="utc">
<div class="location"></div>
<div class="time"></div>
<div class="date"></div>
</div>
<div class="clock" id="mel">
<div class="location"></div>
<div class="time"></div>
<div class="date"></div>
</div>
<div class="clock" id="sg">
<div class="location"></div>
<div class="time"></div>
<div class="date"></div>
</div>
</div>
<div class="grid">
<div class="clock" id="nyc">
<div class="location"></div>
<div class="time"></div>
<div class="date"></div>
</div>
<div class="clock" id="la">
<div class="location"></div>
<div class="time"></div>
<div class="date"></div>
</div>
<div></div>
</div>
<script src="main.js" type="module"></script>
</body>
</html>

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import "/wasm/wasm_exec.js";
const go = new Go();
WebAssembly.instantiateStreaming(fetch("/wasm/clocks.wasm"), go.importObject)
.then((result) => {
go.run(result.instance);
});

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div.clock {
text-align: center;
margin-block-end: 1.8rem;
}
div.clock div.location {
color: rgb(175, 41, 29);
}
div.clock div.time {
font-size: 200%;
font-family: var(--pico-font-family-monospace);
}

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="color-scheme" content="light dark">
<title>Freelens Logo Creator - Tools</title>
<link
rel="stylesheet"
href="https://cdn.jsdelivr.net/npm/@picocss/pico@2/css/pico.min.css"
>
<style>
canvas {
border: 1px solid #ccc;
display: block;
margin-bottom: 10px;
}
</style>
</head>
<body class="container">
<header>
<hgroup>
<h1>Freelens Logo Creator</h1>
<p>Create logos for K8S clusters in Freelens</p>
</hgroup>
</header>
<main class="grid">
<div>
<form id="logoForm">
<input type="text" id="upperText" name="Upper" placeholder="Upper">
<input type="text" id="lowerText" name="Lower" placeholder="Lower">
<label>Background:
<select id="bgColor" name="Background">
<option value="#cd2d2d">Red</option>
<option value="#d26800">Orange</option>
<option value="#f39c12">Amber</option>
<option value="#27ae60">Green</option>
<option value="#17a094">Teal</option>
<option value="#2980b9">Blue</option>
<option value="#8e44ad">Purple</option>
<option value="#7f8c8d">Gray</option>
</select>
</label>
</form>
</div>
<div>
<canvas id="logoCanvas" width="100" height="100"></canvas>
<button id="downloadBtn">Download PNG</button>
</div>
</main>
<script src="script.js"></script>
</body>
</html>

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(function() {
const canvas = document.getElementById('logoCanvas');
const ctx = canvas.getContext('2d');
const upperInput = document.getElementById('upperText');
const lowerInput = document.getElementById('lowerText');
const colorSelect = document.getElementById('bgColor');
const downloadBtn = document.getElementById('downloadBtn');
const PADDING = 15;
const LINE_WIDTH = 2;
function fitText(text, maxWidth, maxHeight) {
let size = maxHeight;
ctx.font = `bold ${size}px sans-serif`;
while (ctx.measureText(text).width > maxWidth && size > 8) {
size--;
ctx.font = `bold ${size}px sans-serif`;
}
return size;
}
function draw() {
const width = canvas.width;
const height = canvas.height;
ctx.clearRect(0, 0, width, height);
ctx.fillStyle = colorSelect.value;
ctx.fillRect(0, 0, width, height);
const upper = upperInput.value;
const lower = lowerInput.value;
if (lower != "") {
ctx.strokeStyle = 'white';
ctx.lineWidth = LINE_WIDTH;
const yLine = height / 2;
ctx.beginPath();
ctx.moveTo(PADDING, yLine);
ctx.lineTo(width - PADDING, yLine);
ctx.stroke();
}
const availableWidth = width - PADDING * 2;
const availableHeight = height - PADDING * 2;
const halfHeight = availableHeight / 2;
ctx.fillStyle = 'white';
ctx.textAlign = 'center';
ctx.textBaseline = 'middle';
if (lower != "") {
let fontSize = fitText(upper, availableWidth, halfHeight);
ctx.font = `bold ${fontSize}px sans-serif`;
ctx.fillText(upper, width / 2, PADDING + halfHeight / 2);
fontSize = fitText(lower, availableWidth, halfHeight);
ctx.font = `bold ${fontSize}px sans-serif`;
ctx.fillText(lower, width / 2, height - PADDING - halfHeight / 2 + 4);
} else {
let fontSize = fitText(upper, availableWidth, halfHeight);
ctx.font = `bold ${fontSize}px sans-serif`;
ctx.fillText(upper, width / 2, height / 2);
}
}
upperInput.addEventListener('input', draw);
lowerInput.addEventListener('input', draw);
colorSelect.addEventListener('change', draw);
downloadBtn.addEventListener('click', function() {
const link = document.createElement('a');
link.download = 'logo.png';
link.href = canvas.toDataURL('image/png');
link.click();
});
draw();
})();

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="color-scheme" content="light dark">
<title>Tools</title>
<link
rel="stylesheet"
href="https://cdn.jsdelivr.net/npm/@picocss/pico@2/css/pico.min.css"
>
</head>
<body class="container">
<header>
<hgroup>
<h1>Tools</h1>
<p>Collection of online tools</p>
</hgroup>
</header>
<main>
<ul>
<li><a href="/clocks/">Clocks</a></li>
<li><a href="/freelens-logo/">Freelens Logo Maker</a></li>
<li><a href="/2lcc/">Two-letter Country Codes</a></li>
</ul>
</main>
</body>
</html>

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// 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.
"use strict";
(() => {
const enosys = () => {
const err = new Error("not implemented");
err.code = "ENOSYS";
return err;
};
if (!globalThis.fs) {
let outputBuf = "";
globalThis.fs = {
constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1, O_DIRECTORY: -1 }, // unused
writeSync(fd, buf) {
outputBuf += decoder.decode(buf);
const nl = outputBuf.lastIndexOf("\n");
if (nl != -1) {
console.log(outputBuf.substring(0, nl));
outputBuf = outputBuf.substring(nl + 1);
}
return buf.length;
},
write(fd, buf, offset, length, position, callback) {
if (offset !== 0 || length !== buf.length || position !== null) {
callback(enosys());
return;
}
const n = this.writeSync(fd, buf);
callback(null, n);
},
chmod(path, mode, callback) { callback(enosys()); },
chown(path, uid, gid, callback) { callback(enosys()); },
close(fd, callback) { callback(enosys()); },
fchmod(fd, mode, callback) { callback(enosys()); },
fchown(fd, uid, gid, callback) { callback(enosys()); },
fstat(fd, callback) { callback(enosys()); },
fsync(fd, callback) { callback(null); },
ftruncate(fd, length, callback) { callback(enosys()); },
lchown(path, uid, gid, callback) { callback(enosys()); },
link(path, link, callback) { callback(enosys()); },
lstat(path, callback) { callback(enosys()); },
mkdir(path, perm, callback) { callback(enosys()); },
open(path, flags, mode, callback) { callback(enosys()); },
read(fd, buffer, offset, length, position, callback) { callback(enosys()); },
readdir(path, callback) { callback(enosys()); },
readlink(path, callback) { callback(enosys()); },
rename(from, to, callback) { callback(enosys()); },
rmdir(path, callback) { callback(enosys()); },
stat(path, callback) { callback(enosys()); },
symlink(path, link, callback) { callback(enosys()); },
truncate(path, length, callback) { callback(enosys()); },
unlink(path, callback) { callback(enosys()); },
utimes(path, atime, mtime, callback) { callback(enosys()); },
};
}
if (!globalThis.process) {
globalThis.process = {
getuid() { return -1; },
getgid() { return -1; },
geteuid() { return -1; },
getegid() { return -1; },
getgroups() { throw enosys(); },
pid: -1,
ppid: -1,
umask() { throw enosys(); },
cwd() { throw enosys(); },
chdir() { throw enosys(); },
}
}
if (!globalThis.path) {
globalThis.path = {
resolve(...pathSegments) {
return pathSegments.join("/");
}
}
}
if (!globalThis.crypto) {
throw new Error("globalThis.crypto is not available, polyfill required (crypto.getRandomValues only)");
}
if (!globalThis.performance) {
throw new Error("globalThis.performance is not available, polyfill required (performance.now only)");
}
if (!globalThis.TextEncoder) {
throw new Error("globalThis.TextEncoder is not available, polyfill required");
}
if (!globalThis.TextDecoder) {
throw new Error("globalThis.TextDecoder is not available, polyfill required");
}
const encoder = new TextEncoder("utf-8");
const decoder = new TextDecoder("utf-8");
globalThis.Go = class {
constructor() {
this.argv = ["js"];
this.env = {};
this.exit = (code) => {
if (code !== 0) {
console.warn("exit code:", code);
}
};
this._exitPromise = new Promise((resolve) => {
this._resolveExitPromise = resolve;
});
this._pendingEvent = null;
this._scheduledTimeouts = new Map();
this._nextCallbackTimeoutID = 1;
const setInt64 = (addr, v) => {
this.mem.setUint32(addr + 0, v, true);
this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true);
}
const setInt32 = (addr, v) => {
this.mem.setUint32(addr + 0, v, true);
}
const getInt64 = (addr) => {
const low = this.mem.getUint32(addr + 0, true);
const high = this.mem.getInt32(addr + 4, true);
return low + high * 4294967296;
}
const loadValue = (addr) => {
const f = this.mem.getFloat64(addr, true);
if (f === 0) {
return undefined;
}
if (!isNaN(f)) {
return f;
}
const id = this.mem.getUint32(addr, true);
return this._values[id];
}
const storeValue = (addr, v) => {
const nanHead = 0x7FF80000;
if (typeof v === "number" && v !== 0) {
if (isNaN(v)) {
this.mem.setUint32(addr + 4, nanHead, true);
this.mem.setUint32(addr, 0, true);
return;
}
this.mem.setFloat64(addr, v, true);
return;
}
if (v === undefined) {
this.mem.setFloat64(addr, 0, true);
return;
}
let id = this._ids.get(v);
if (id === undefined) {
id = this._idPool.pop();
if (id === undefined) {
id = this._values.length;
}
this._values[id] = v;
this._goRefCounts[id] = 0;
this._ids.set(v, id);
}
this._goRefCounts[id]++;
let typeFlag = 0;
switch (typeof v) {
case "object":
if (v !== null) {
typeFlag = 1;
}
break;
case "string":
typeFlag = 2;
break;
case "symbol":
typeFlag = 3;
break;
case "function":
typeFlag = 4;
break;
}
this.mem.setUint32(addr + 4, nanHead | typeFlag, true);
this.mem.setUint32(addr, id, true);
}
const loadSlice = (addr) => {
const array = getInt64(addr + 0);
const len = getInt64(addr + 8);
return new Uint8Array(this._inst.exports.mem.buffer, array, len);
}
const loadSliceOfValues = (addr) => {
const array = getInt64(addr + 0);
const len = getInt64(addr + 8);
const a = new Array(len);
for (let i = 0; i < len; i++) {
a[i] = loadValue(array + i * 8);
}
return a;
}
const loadString = (addr) => {
const saddr = getInt64(addr + 0);
const len = getInt64(addr + 8);
return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len));
}
const testCallExport = (a, b) => {
this._inst.exports.testExport0();
return this._inst.exports.testExport(a, b);
}
const timeOrigin = Date.now() - performance.now();
this.importObject = {
_gotest: {
add: (a, b) => a + b,
callExport: testCallExport,
},
gojs: {
// Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters)
// may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported
// function. A goroutine can switch to a new stack if the current stack is too small (see morestack function).
// This changes the SP, thus we have to update the SP used by the imported function.
// func wasmExit(code int32)
"runtime.wasmExit": (sp) => {
sp >>>= 0;
const code = this.mem.getInt32(sp + 8, true);
this.exited = true;
delete this._inst;
delete this._values;
delete this._goRefCounts;
delete this._ids;
delete this._idPool;
this.exit(code);
},
// func wasmWrite(fd uintptr, p unsafe.Pointer, n int32)
"runtime.wasmWrite": (sp) => {
sp >>>= 0;
const fd = getInt64(sp + 8);
const p = getInt64(sp + 16);
const n = this.mem.getInt32(sp + 24, true);
fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n));
},
// func resetMemoryDataView()
"runtime.resetMemoryDataView": (sp) => {
sp >>>= 0;
this.mem = new DataView(this._inst.exports.mem.buffer);
},
// func nanotime1() int64
"runtime.nanotime1": (sp) => {
sp >>>= 0;
setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);
},
// func walltime() (sec int64, nsec int32)
"runtime.walltime": (sp) => {
sp >>>= 0;
const msec = (new Date).getTime();
setInt64(sp + 8, msec / 1000);
this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true);
},
// func scheduleTimeoutEvent(delay int64) int32
"runtime.scheduleTimeoutEvent": (sp) => {
sp >>>= 0;
const id = this._nextCallbackTimeoutID;
this._nextCallbackTimeoutID++;
this._scheduledTimeouts.set(id, setTimeout(
() => {
this._resume();
while (this._scheduledTimeouts.has(id)) {
// for some reason Go failed to register the timeout event, log and try again
// (temporary workaround for https://github.com/golang/go/issues/28975)
console.warn("scheduleTimeoutEvent: missed timeout event");
this._resume();
}
},
getInt64(sp + 8),
));
this.mem.setInt32(sp + 16, id, true);
},
// func clearTimeoutEvent(id int32)
"runtime.clearTimeoutEvent": (sp) => {
sp >>>= 0;
const id = this.mem.getInt32(sp + 8, true);
clearTimeout(this._scheduledTimeouts.get(id));
this._scheduledTimeouts.delete(id);
},
// func getRandomData(r []byte)
"runtime.getRandomData": (sp) => {
sp >>>= 0;
crypto.getRandomValues(loadSlice(sp + 8));
},
// func finalizeRef(v ref)
"syscall/js.finalizeRef": (sp) => {
sp >>>= 0;
const id = this.mem.getUint32(sp + 8, true);
this._goRefCounts[id]--;
if (this._goRefCounts[id] === 0) {
const v = this._values[id];
this._values[id] = null;
this._ids.delete(v);
this._idPool.push(id);
}
},
// func stringVal(value string) ref
"syscall/js.stringVal": (sp) => {
sp >>>= 0;
storeValue(sp + 24, loadString(sp + 8));
},
// func valueGet(v ref, p string) ref
"syscall/js.valueGet": (sp) => {
sp >>>= 0;
const result = Reflect.get(loadValue(sp + 8), loadString(sp + 16));
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 32, result);
},
// func valueSet(v ref, p string, x ref)
"syscall/js.valueSet": (sp) => {
sp >>>= 0;
Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32));
},
// func valueDelete(v ref, p string)
"syscall/js.valueDelete": (sp) => {
sp >>>= 0;
Reflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16));
},
// func valueIndex(v ref, i int) ref
"syscall/js.valueIndex": (sp) => {
sp >>>= 0;
storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16)));
},
// valueSetIndex(v ref, i int, x ref)
"syscall/js.valueSetIndex": (sp) => {
sp >>>= 0;
Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24));
},
// func valueCall(v ref, m string, args []ref) (ref, bool)
"syscall/js.valueCall": (sp) => {
sp >>>= 0;
try {
const v = loadValue(sp + 8);
const m = Reflect.get(v, loadString(sp + 16));
const args = loadSliceOfValues(sp + 32);
const result = Reflect.apply(m, v, args);
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 56, result);
this.mem.setUint8(sp + 64, 1);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 56, err);
this.mem.setUint8(sp + 64, 0);
}
},
// func valueInvoke(v ref, args []ref) (ref, bool)
"syscall/js.valueInvoke": (sp) => {
sp >>>= 0;
try {
const v = loadValue(sp + 8);
const args = loadSliceOfValues(sp + 16);
const result = Reflect.apply(v, undefined, args);
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, result);
this.mem.setUint8(sp + 48, 1);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, err);
this.mem.setUint8(sp + 48, 0);
}
},
// func valueNew(v ref, args []ref) (ref, bool)
"syscall/js.valueNew": (sp) => {
sp >>>= 0;
try {
const v = loadValue(sp + 8);
const args = loadSliceOfValues(sp + 16);
const result = Reflect.construct(v, args);
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, result);
this.mem.setUint8(sp + 48, 1);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, err);
this.mem.setUint8(sp + 48, 0);
}
},
// func valueLength(v ref) int
"syscall/js.valueLength": (sp) => {
sp >>>= 0;
setInt64(sp + 16, parseInt(loadValue(sp + 8).length));
},
// valuePrepareString(v ref) (ref, int)
"syscall/js.valuePrepareString": (sp) => {
sp >>>= 0;
const str = encoder.encode(String(loadValue(sp + 8)));
storeValue(sp + 16, str);
setInt64(sp + 24, str.length);
},
// valueLoadString(v ref, b []byte)
"syscall/js.valueLoadString": (sp) => {
sp >>>= 0;
const str = loadValue(sp + 8);
loadSlice(sp + 16).set(str);
},
// func valueInstanceOf(v ref, t ref) bool
"syscall/js.valueInstanceOf": (sp) => {
sp >>>= 0;
this.mem.setUint8(sp + 24, (loadValue(sp + 8) instanceof loadValue(sp + 16)) ? 1 : 0);
},
// func copyBytesToGo(dst []byte, src ref) (int, bool)
"syscall/js.copyBytesToGo": (sp) => {
sp >>>= 0;
const dst = loadSlice(sp + 8);
const src = loadValue(sp + 32);
if (!(src instanceof Uint8Array || src instanceof Uint8ClampedArray)) {
this.mem.setUint8(sp + 48, 0);
return;
}
const toCopy = src.subarray(0, dst.length);
dst.set(toCopy);
setInt64(sp + 40, toCopy.length);
this.mem.setUint8(sp + 48, 1);
},
// func copyBytesToJS(dst ref, src []byte) (int, bool)
"syscall/js.copyBytesToJS": (sp) => {
sp >>>= 0;
const dst = loadValue(sp + 8);
const src = loadSlice(sp + 16);
if (!(dst instanceof Uint8Array || dst instanceof Uint8ClampedArray)) {
this.mem.setUint8(sp + 48, 0);
return;
}
const toCopy = src.subarray(0, dst.length);
dst.set(toCopy);
setInt64(sp + 40, toCopy.length);
this.mem.setUint8(sp + 48, 1);
},
"debug": (value) => {
console.log(value);
},
}
};
}
async run(instance) {
if (!(instance instanceof WebAssembly.Instance)) {
throw new Error("Go.run: WebAssembly.Instance expected");
}
this._inst = instance;
this.mem = new DataView(this._inst.exports.mem.buffer);
this._values = [ // JS values that Go currently has references to, indexed by reference id
NaN,
0,
null,
true,
false,
globalThis,
this,
];
this._goRefCounts = new Array(this._values.length).fill(Infinity); // number of references that Go has to a JS value, indexed by reference id
this._ids = new Map([ // mapping from JS values to reference ids
[0, 1],
[null, 2],
[true, 3],
[false, 4],
[globalThis, 5],
[this, 6],
]);
this._idPool = []; // unused ids that have been garbage collected
this.exited = false; // whether the Go program has exited
// Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory.
let offset = 4096;
const strPtr = (str) => {
const ptr = offset;
const bytes = encoder.encode(str + "\0");
new Uint8Array(this.mem.buffer, offset, bytes.length).set(bytes);
offset += bytes.length;
if (offset % 8 !== 0) {
offset += 8 - (offset % 8);
}
return ptr;
};
const argc = this.argv.length;
const argvPtrs = [];
this.argv.forEach((arg) => {
argvPtrs.push(strPtr(arg));
});
argvPtrs.push(0);
const keys = Object.keys(this.env).sort();
keys.forEach((key) => {
argvPtrs.push(strPtr(`${key}=${this.env[key]}`));
});
argvPtrs.push(0);
const argv = offset;
argvPtrs.forEach((ptr) => {
this.mem.setUint32(offset, ptr, true);
this.mem.setUint32(offset + 4, 0, true);
offset += 8;
});
// The linker guarantees global data starts from at least wasmMinDataAddr.
// Keep in sync with cmd/link/internal/ld/data.go:wasmMinDataAddr.
const wasmMinDataAddr = 4096 + 8192;
if (offset >= wasmMinDataAddr) {
throw new Error("total length of command line and environment variables exceeds limit");
}
this._inst.exports.run(argc, argv);
if (this.exited) {
this._resolveExitPromise();
}
await this._exitPromise;
}
_resume() {
if (this.exited) {
throw new Error("Go program has already exited");
}
this._inst.exports.resume();
if (this.exited) {
this._resolveExitPromise();
}
}
_makeFuncWrapper(id) {
const go = this;
return function () {
const event = { id: id, this: this, args: arguments };
go._pendingEvent = event;
go._resume();
return event.result;
};
}
}
})();