mirror of
https://github.com/python/cpython.git
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gh-127111: Apply prettier formatter to Emscripten web example (#127551)
Cleaned up formatting (and a stray closing tag) of the web example HTML and JS.
This commit is contained in:
Hood Chatham
GitHub
parent
94b8f8b409
commit
2f1cee8477
2 changed files with 490 additions and 425 deletions
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@ -1,373 +1,433 @@
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<!DOCTYPE html>
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta name="author" content="Katie Bell">
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<meta name="description" content="Simple REPL for Python WASM">
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<title>wasm-python terminal</title>
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<link rel="stylesheet" href="https://unpkg.com/xterm@4.18.0/css/xterm.css" crossorigin integrity="sha384-4eEEn/eZgVHkElpKAzzPx/Kow/dTSgFk1BNe+uHdjHa+NkZJDh5Vqkq31+y7Eycd"/>
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<style>
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body {
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font-family: arial;
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max-width: 800px;
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margin: 0 auto
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}
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#code {
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width: 100%;
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height: 180px;
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}
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#info {
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padding-top: 20px;
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}
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.button-container {
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display: flex;
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justify-content: end;
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height: 50px;
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align-items: center;
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gap: 10px;
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}
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button {
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padding: 6px 18px;
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}
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</style>
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<script src="https://unpkg.com/xterm@4.18.0/lib/xterm.js" crossorigin integrity="sha384-yYdNmem1ioP5Onm7RpXutin5A8TimLheLNQ6tnMi01/ZpxXdAwIm2t4fJMx1Djs+"/></script>
|
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<script type="module">
|
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class WorkerManager {
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constructor(workerURL, standardIO, readyCallBack, finishedCallback) {
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this.workerURL = workerURL
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this.worker = null
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this.standardIO = standardIO
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this.readyCallBack = readyCallBack
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this.finishedCallback = finishedCallback
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this.initialiseWorker()
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}
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async initialiseWorker() {
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if (!this.worker) {
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this.worker = new Worker(this.workerURL, {type: "module"})
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this.worker.addEventListener('message', this.handleMessageFromWorker)
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}
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}
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|
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async run(options) {
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this.worker.postMessage({
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type: 'run',
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args: options.args || [],
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files: options.files || {}
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})
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}
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reset() {
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if (this.worker) {
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this.worker.terminate()
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this.worker = null
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}
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this.standardIO.message('Worker process terminated.')
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this.initialiseWorker()
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}
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handleStdinData(inputValue) {
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if (this.stdinbuffer && this.stdinbufferInt) {
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let startingIndex = 1
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if (this.stdinbufferInt[0] > 0) {
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startingIndex = this.stdinbufferInt[0]
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<head>
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<meta charset="UTF-8" />
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<meta name="author" content="Katie Bell" />
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<meta name="description" content="Simple REPL for Python WASM" />
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<title>wasm-python terminal</title>
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<link
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rel="stylesheet"
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href="https://unpkg.com/xterm@4.18.0/css/xterm.css"
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crossorigin
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integrity="sha384-4eEEn/eZgVHkElpKAzzPx/Kow/dTSgFk1BNe+uHdjHa+NkZJDh5Vqkq31+y7Eycd"
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/>
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<style>
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body {
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font-family: arial;
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max-width: 800px;
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margin: 0 auto;
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}
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const data = new TextEncoder().encode(inputValue)
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data.forEach((value, index) => {
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this.stdinbufferInt[startingIndex + index] = value
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})
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this.stdinbufferInt[0] = startingIndex + data.length - 1
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Atomics.notify(this.stdinbufferInt, 0, 1)
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}
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}
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handleMessageFromWorker = (event) => {
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const type = event.data.type
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if (type === 'ready') {
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this.readyCallBack()
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} else if (type === 'stdout') {
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this.standardIO.stdout(event.data.stdout)
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} else if (type === 'stderr') {
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this.standardIO.stderr(event.data.stderr)
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} else if (type === 'stdin') {
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// Leave it to the terminal to decide whether to chunk it into lines
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// or send characters depending on the use case.
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this.stdinbuffer = event.data.buffer
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this.stdinbufferInt = new Int32Array(this.stdinbuffer)
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this.standardIO.stdin().then((inputValue) => {
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this.handleStdinData(inputValue)
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})
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} else if (type === 'finished') {
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this.standardIO.message(`Exited with status: ${event.data.returnCode}`)
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this.finishedCallback()
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}
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}
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}
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class WasmTerminal {
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constructor() {
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this.inputBuffer = new BufferQueue();
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this.input = ''
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this.resolveInput = null
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this.activeInput = false
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this.inputStartCursor = null
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this.xterm = new Terminal(
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{ scrollback: 10000, fontSize: 14, theme: { background: '#1a1c1f' }, cols: 100}
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);
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this.xterm.onKey((keyEvent) => {
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// Fix for iOS Keyboard Jumping on space
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if (keyEvent.key === " ") {
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keyEvent.domEvent.preventDefault();
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#code {
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width: 100%;
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height: 180px;
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}
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});
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this.xterm.onData(this.handleTermData)
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}
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open(container) {
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this.xterm.open(container);
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}
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handleTermData = (data) => {
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const ord = data.charCodeAt(0);
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data = data.replace(/\r(?!\n)/g, "\n") // Convert lone CRs to LF
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// Handle pasted data
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if (data.length > 1 && data.includes("\n")) {
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let alreadyWrittenChars = 0;
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// If line already had data on it, merge pasted data with it
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if (this.input != '') {
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this.inputBuffer.addData(this.input);
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alreadyWrittenChars = this.input.length;
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this.input = '';
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#info {
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padding-top: 20px;
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}
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this.inputBuffer.addData(data);
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// If input is active, write the first line
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if (this.activeInput) {
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let line = this.inputBuffer.nextLine();
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this.writeLine(line.slice(alreadyWrittenChars));
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this.resolveInput(line);
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this.activeInput = false;
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.button-container {
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display: flex;
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justify-content: end;
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height: 50px;
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align-items: center;
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gap: 10px;
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}
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// When input isn't active, add to line buffer
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} else if (!this.activeInput) {
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// Skip non-printable characters
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if (!(ord === 0x1b || ord == 0x7f || ord < 32)) {
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this.inputBuffer.addData(data);
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button {
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padding: 6px 18px;
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}
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// TODO: Handle ANSI escape sequences
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} else if (ord === 0x1b) {
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// Handle special characters
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} else if (ord < 32 || ord === 0x7f) {
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switch (data) {
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case "\x0c": // CTRL+L
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this.clear();
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break;
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case "\n": // ENTER
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case "\x0a": // CTRL+J
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case "\x0d": // CTRL+M
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this.resolveInput(this.input + this.writeLine('\n'));
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this.input = '';
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this.activeInput = false;
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break;
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case "\x7F": // BACKSPACE
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case "\x08": // CTRL+H
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this.handleCursorErase(true);
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break;
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case "\x04": // CTRL+D
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// Send empty input
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if (this.input === '') {
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this.resolveInput('')
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this.activeInput = false;
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</style>
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<script
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src="https://unpkg.com/xterm@4.18.0/lib/xterm.js"
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crossorigin
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integrity="sha384-yYdNmem1ioP5Onm7RpXutin5A8TimLheLNQ6tnMi01/ZpxXdAwIm2t4fJMx1Djs+"
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/>
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<script type="module">
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class WorkerManager {
|
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constructor(
|
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workerURL,
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standardIO,
|
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readyCallBack,
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finishedCallback,
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) {
|
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this.workerURL = workerURL;
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this.worker = null;
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this.standardIO = standardIO;
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this.readyCallBack = readyCallBack;
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this.finishedCallback = finishedCallback;
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this.initialiseWorker();
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}
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async initialiseWorker() {
|
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if (!this.worker) {
|
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this.worker = new Worker(this.workerURL, {
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type: "module",
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});
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this.worker.addEventListener(
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"message",
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this.handleMessageFromWorker,
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);
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}
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}
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async run(options) {
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this.worker.postMessage({
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type: "run",
|
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args: options.args || [],
|
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files: options.files || {},
|
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});
|
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}
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reset() {
|
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if (this.worker) {
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this.worker.terminate();
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this.worker = null;
|
||||
}
|
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this.standardIO.message("Worker process terminated.");
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this.initialiseWorker();
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}
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|
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handleStdinData(inputValue) {
|
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if (this.stdinbuffer && this.stdinbufferInt) {
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let startingIndex = 1;
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if (this.stdinbufferInt[0] > 0) {
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startingIndex = this.stdinbufferInt[0];
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}
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const data = new TextEncoder().encode(inputValue);
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data.forEach((value, index) => {
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this.stdinbufferInt[startingIndex + index] = value;
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});
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|
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this.stdinbufferInt[0] =
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startingIndex + data.length - 1;
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Atomics.notify(this.stdinbufferInt, 0, 1);
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}
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}
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handleMessageFromWorker = (event) => {
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const type = event.data.type;
|
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if (type === "ready") {
|
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this.readyCallBack();
|
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} else if (type === "stdout") {
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this.standardIO.stdout(event.data.stdout);
|
||||
} else if (type === "stderr") {
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this.standardIO.stderr(event.data.stderr);
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} else if (type === "stdin") {
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// Leave it to the terminal to decide whether to chunk it into lines
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// or send characters depending on the use case.
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this.stdinbuffer = event.data.buffer;
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this.stdinbufferInt = new Int32Array(this.stdinbuffer);
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this.standardIO.stdin().then((inputValue) => {
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this.handleStdinData(inputValue);
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});
|
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} else if (type === "finished") {
|
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this.standardIO.message(
|
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`Exited with status: ${event.data.returnCode}`,
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);
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this.finishedCallback();
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}
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};
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}
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} else {
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this.handleCursorInsert(data);
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}
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}
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writeLine(line) {
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this.xterm.write(line.slice(0, -1))
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this.xterm.write('\r\n');
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return line;
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}
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class WasmTerminal {
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constructor() {
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this.inputBuffer = new BufferQueue();
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this.input = "";
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this.resolveInput = null;
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this.activeInput = false;
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this.inputStartCursor = null;
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handleCursorInsert(data) {
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this.input += data;
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this.xterm.write(data)
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}
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this.xterm = new Terminal({
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scrollback: 10000,
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fontSize: 14,
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theme: { background: "#1a1c1f" },
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cols: 100,
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});
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handleCursorErase() {
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// Don't delete past the start of input
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if (this.xterm.buffer.active.cursorX <= this.inputStartCursor) {
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return
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}
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this.input = this.input.slice(0, -1)
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this.xterm.write('\x1B[D')
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this.xterm.write('\x1B[P')
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}
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this.xterm.onKey((keyEvent) => {
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// Fix for iOS Keyboard Jumping on space
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if (keyEvent.key === " ") {
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keyEvent.domEvent.preventDefault();
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}
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});
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prompt = async () => {
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this.activeInput = true
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// Hack to allow stdout/stderr to finish before we figure out where input starts
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setTimeout(() => {this.inputStartCursor = this.xterm.buffer.active.cursorX}, 1)
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// If line buffer has a line ready, send it immediately
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if (this.inputBuffer.hasLineReady()) {
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return new Promise((resolve, reject) => {
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resolve(this.writeLine(this.inputBuffer.nextLine()));
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this.activeInput = false;
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})
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// If line buffer has an incomplete line, use it for the active line
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} else if (this.inputBuffer.lastLineIsIncomplete()) {
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// Hack to ensure cursor input start doesn't end up after user input
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setTimeout(() => {this.handleCursorInsert(this.inputBuffer.nextLine())}, 1);
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}
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return new Promise((resolve, reject) => {
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this.resolveInput = (value) => {
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resolve(value)
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this.xterm.onData(this.handleTermData);
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}
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open(container) {
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this.xterm.open(container);
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}
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handleTermData = (data) => {
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const ord = data.charCodeAt(0);
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data = data.replace(/\r(?!\n)/g, "\n"); // Convert lone CRs to LF
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// Handle pasted data
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if (data.length > 1 && data.includes("\n")) {
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let alreadyWrittenChars = 0;
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// If line already had data on it, merge pasted data with it
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if (this.input != "") {
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this.inputBuffer.addData(this.input);
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alreadyWrittenChars = this.input.length;
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this.input = "";
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}
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this.inputBuffer.addData(data);
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// If input is active, write the first line
|
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if (this.activeInput) {
|
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let line = this.inputBuffer.nextLine();
|
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this.writeLine(line.slice(alreadyWrittenChars));
|
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this.resolveInput(line);
|
||||
this.activeInput = false;
|
||||
}
|
||||
// When input isn't active, add to line buffer
|
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} else if (!this.activeInput) {
|
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// Skip non-printable characters
|
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if (!(ord === 0x1b || ord == 0x7f || ord < 32)) {
|
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this.inputBuffer.addData(data);
|
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}
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// TODO: Handle ANSI escape sequences
|
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} else if (ord === 0x1b) {
|
||||
// Handle special characters
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} else if (ord < 32 || ord === 0x7f) {
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switch (data) {
|
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case "\x0c": // CTRL+L
|
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this.clear();
|
||||
break;
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case "\n": // ENTER
|
||||
case "\x0a": // CTRL+J
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case "\x0d": // CTRL+M
|
||||
this.resolveInput(
|
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this.input + this.writeLine("\n"),
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);
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this.input = "";
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this.activeInput = false;
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break;
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case "\x7F": // BACKSPACE
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case "\x08": // CTRL+H
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this.handleCursorErase(true);
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break;
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case "\x04": // CTRL+D
|
||||
// Send empty input
|
||||
if (this.input === "") {
|
||||
this.resolveInput("");
|
||||
this.activeInput = false;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
this.handleCursorInsert(data);
|
||||
}
|
||||
};
|
||||
|
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writeLine(line) {
|
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this.xterm.write(line.slice(0, -1));
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this.xterm.write("\r\n");
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return line;
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}
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handleCursorInsert(data) {
|
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this.input += data;
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this.xterm.write(data);
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||||
}
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||||
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handleCursorErase() {
|
||||
// Don't delete past the start of input
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if (
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this.xterm.buffer.active.cursorX <=
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this.inputStartCursor
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) {
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return;
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}
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this.input = this.input.slice(0, -1);
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this.xterm.write("\x1B[D");
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this.xterm.write("\x1B[P");
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}
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prompt = async () => {
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this.activeInput = true;
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// Hack to allow stdout/stderr to finish before we figure out where input starts
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setTimeout(() => {
|
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this.inputStartCursor =
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this.xterm.buffer.active.cursorX;
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||||
}, 1);
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||||
// If line buffer has a line ready, send it immediately
|
||||
if (this.inputBuffer.hasLineReady()) {
|
||||
return new Promise((resolve, reject) => {
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||||
resolve(
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||||
this.writeLine(this.inputBuffer.nextLine()),
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);
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this.activeInput = false;
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||||
});
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||||
// If line buffer has an incomplete line, use it for the active line
|
||||
} else if (this.inputBuffer.lastLineIsIncomplete()) {
|
||||
// Hack to ensure cursor input start doesn't end up after user input
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||||
setTimeout(() => {
|
||||
this.handleCursorInsert(
|
||||
this.inputBuffer.nextLine(),
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||||
);
|
||||
}, 1);
|
||||
}
|
||||
return new Promise((resolve, reject) => {
|
||||
this.resolveInput = (value) => {
|
||||
resolve(value);
|
||||
};
|
||||
});
|
||||
};
|
||||
|
||||
clear() {
|
||||
this.xterm.clear();
|
||||
}
|
||||
|
||||
print(charCode) {
|
||||
let array = [charCode];
|
||||
if (charCode == 10) {
|
||||
array = [13, 10]; // Replace \n with \r\n
|
||||
}
|
||||
this.xterm.write(new Uint8Array(array));
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
clear() {
|
||||
this.xterm.clear();
|
||||
}
|
||||
class BufferQueue {
|
||||
constructor(xterm) {
|
||||
this.buffer = [];
|
||||
}
|
||||
|
||||
print(charCode) {
|
||||
let array = [charCode];
|
||||
if (charCode == 10) {
|
||||
array = [13, 10]; // Replace \n with \r\n
|
||||
}
|
||||
this.xterm.write(new Uint8Array(array));
|
||||
}
|
||||
}
|
||||
isEmpty() {
|
||||
return this.buffer.length == 0;
|
||||
}
|
||||
|
||||
class BufferQueue {
|
||||
constructor(xterm) {
|
||||
this.buffer = []
|
||||
}
|
||||
lastLineIsIncomplete() {
|
||||
return (
|
||||
!this.isEmpty() &&
|
||||
!this.buffer[this.buffer.length - 1].endsWith("\n")
|
||||
);
|
||||
}
|
||||
|
||||
isEmpty() {
|
||||
return this.buffer.length == 0
|
||||
}
|
||||
hasLineReady() {
|
||||
return !this.isEmpty() && this.buffer[0].endsWith("\n");
|
||||
}
|
||||
|
||||
lastLineIsIncomplete() {
|
||||
return !this.isEmpty() && !this.buffer[this.buffer.length-1].endsWith("\n")
|
||||
}
|
||||
addData(data) {
|
||||
let lines = data.match(/.*(\n|$)/g);
|
||||
if (this.lastLineIsIncomplete()) {
|
||||
this.buffer[this.buffer.length - 1] += lines.shift();
|
||||
}
|
||||
for (let line of lines) {
|
||||
this.buffer.push(line);
|
||||
}
|
||||
}
|
||||
|
||||
hasLineReady() {
|
||||
return !this.isEmpty() && this.buffer[0].endsWith("\n")
|
||||
}
|
||||
nextLine() {
|
||||
return this.buffer.shift();
|
||||
}
|
||||
}
|
||||
|
||||
addData(data) {
|
||||
let lines = data.match(/.*(\n|$)/g)
|
||||
if (this.lastLineIsIncomplete()) {
|
||||
this.buffer[this.buffer.length-1] += lines.shift()
|
||||
}
|
||||
for (let line of lines) {
|
||||
this.buffer.push(line)
|
||||
}
|
||||
}
|
||||
const runButton = document.getElementById("run");
|
||||
const replButton = document.getElementById("repl");
|
||||
const stopButton = document.getElementById("stop");
|
||||
const clearButton = document.getElementById("clear");
|
||||
|
||||
nextLine() {
|
||||
return this.buffer.shift()
|
||||
}
|
||||
}
|
||||
const codeBox = document.getElementById("codebox");
|
||||
|
||||
const runButton = document.getElementById('run')
|
||||
const replButton = document.getElementById('repl')
|
||||
const stopButton = document.getElementById('stop')
|
||||
const clearButton = document.getElementById('clear')
|
||||
window.onload = () => {
|
||||
const terminal = new WasmTerminal();
|
||||
terminal.open(document.getElementById("terminal"));
|
||||
|
||||
const codeBox = document.getElementById('codebox')
|
||||
const stdio = {
|
||||
stdout: (charCode) => {
|
||||
terminal.print(charCode);
|
||||
},
|
||||
stderr: (charCode) => {
|
||||
terminal.print(charCode);
|
||||
},
|
||||
stdin: async () => {
|
||||
return await terminal.prompt();
|
||||
},
|
||||
message: (text) => {
|
||||
terminal.writeLine(`\r\n${text}\r\n`);
|
||||
},
|
||||
};
|
||||
|
||||
window.onload = () => {
|
||||
const terminal = new WasmTerminal()
|
||||
terminal.open(document.getElementById('terminal'))
|
||||
const programRunning = (isRunning) => {
|
||||
if (isRunning) {
|
||||
replButton.setAttribute("disabled", true);
|
||||
runButton.setAttribute("disabled", true);
|
||||
stopButton.removeAttribute("disabled");
|
||||
} else {
|
||||
replButton.removeAttribute("disabled");
|
||||
runButton.removeAttribute("disabled");
|
||||
stopButton.setAttribute("disabled", true);
|
||||
}
|
||||
};
|
||||
|
||||
const stdio = {
|
||||
stdout: (charCode) => { terminal.print(charCode) },
|
||||
stderr: (charCode) => { terminal.print(charCode) },
|
||||
stdin: async () => {
|
||||
return await terminal.prompt()
|
||||
},
|
||||
message: (text) => { terminal.writeLine(`\r\n${text}\r\n`) },
|
||||
}
|
||||
runButton.addEventListener("click", (e) => {
|
||||
terminal.clear();
|
||||
programRunning(true);
|
||||
const code = codeBox.value;
|
||||
pythonWorkerManager.run({
|
||||
args: ["main.py"],
|
||||
files: { "main.py": code },
|
||||
});
|
||||
});
|
||||
|
||||
const programRunning = (isRunning) => {
|
||||
if (isRunning) {
|
||||
replButton.setAttribute('disabled', true)
|
||||
runButton.setAttribute('disabled', true)
|
||||
stopButton.removeAttribute('disabled')
|
||||
} else {
|
||||
replButton.removeAttribute('disabled')
|
||||
runButton.removeAttribute('disabled')
|
||||
stopButton.setAttribute('disabled', true)
|
||||
}
|
||||
}
|
||||
replButton.addEventListener("click", (e) => {
|
||||
terminal.clear();
|
||||
programRunning(true);
|
||||
// Need to use "-i -" to force interactive mode.
|
||||
// Looks like isatty always returns false in emscripten
|
||||
pythonWorkerManager.run({ args: ["-i", "-"], files: {} });
|
||||
});
|
||||
|
||||
runButton.addEventListener('click', (e) => {
|
||||
terminal.clear()
|
||||
programRunning(true)
|
||||
const code = codeBox.value
|
||||
pythonWorkerManager.run({args: ['main.py'], files: {'main.py': code}})
|
||||
})
|
||||
stopButton.addEventListener("click", (e) => {
|
||||
programRunning(false);
|
||||
pythonWorkerManager.reset();
|
||||
});
|
||||
|
||||
replButton.addEventListener('click', (e) => {
|
||||
terminal.clear()
|
||||
programRunning(true)
|
||||
// Need to use "-i -" to force interactive mode.
|
||||
// Looks like isatty always returns false in emscripten
|
||||
pythonWorkerManager.run({args: ['-i', '-'], files: {}})
|
||||
})
|
||||
clearButton.addEventListener("click", (e) => {
|
||||
terminal.clear();
|
||||
});
|
||||
|
||||
stopButton.addEventListener('click', (e) => {
|
||||
programRunning(false)
|
||||
pythonWorkerManager.reset()
|
||||
})
|
||||
const readyCallback = () => {
|
||||
replButton.removeAttribute("disabled");
|
||||
runButton.removeAttribute("disabled");
|
||||
clearButton.removeAttribute("disabled");
|
||||
};
|
||||
|
||||
clearButton.addEventListener('click', (e) => {
|
||||
terminal.clear()
|
||||
})
|
||||
const finishedCallback = () => {
|
||||
programRunning(false);
|
||||
};
|
||||
|
||||
const readyCallback = () => {
|
||||
replButton.removeAttribute('disabled')
|
||||
runButton.removeAttribute('disabled')
|
||||
clearButton.removeAttribute('disabled')
|
||||
}
|
||||
|
||||
const finishedCallback = () => {
|
||||
programRunning(false)
|
||||
}
|
||||
|
||||
const pythonWorkerManager = new WorkerManager('./python.worker.mjs', stdio, readyCallback, finishedCallback)
|
||||
}
|
||||
</script>
|
||||
</head>
|
||||
<body>
|
||||
<h1>Simple REPL for Python WASM</h1>
|
||||
<textarea id="codebox" cols="108" rows="16">
|
||||
const pythonWorkerManager = new WorkerManager(
|
||||
"./python.worker.mjs",
|
||||
stdio,
|
||||
readyCallback,
|
||||
finishedCallback,
|
||||
);
|
||||
};
|
||||
</script>
|
||||
</head>
|
||||
<body>
|
||||
<h1>Simple REPL for Python WASM</h1>
|
||||
<textarea id="codebox" cols="108" rows="16">
|
||||
print('Welcome to WASM!')
|
||||
</textarea>
|
||||
<div class="button-container">
|
||||
<button id="run" disabled>Run</button>
|
||||
<button id="repl" disabled>Start REPL</button>
|
||||
<button id="stop" disabled>Stop</button>
|
||||
<button id="clear" disabled>Clear</button>
|
||||
</div>
|
||||
<div id="terminal"></div>
|
||||
<div id="info">
|
||||
The simple REPL provides a limited Python experience in the browser.
|
||||
<a href="https://github.com/python/cpython/blob/main/Tools/wasm/README.md">
|
||||
Tools/wasm/README.md</a> contains a list of known limitations and
|
||||
issues. Networking, subprocesses, and threading are not available.
|
||||
</div>
|
||||
</body>
|
||||
</textarea
|
||||
>
|
||||
<div class="button-container">
|
||||
<button id="run" disabled>Run</button>
|
||||
<button id="repl" disabled>Start REPL</button>
|
||||
<button id="stop" disabled>Stop</button>
|
||||
<button id="clear" disabled>Clear</button>
|
||||
</div>
|
||||
<div id="terminal"></div>
|
||||
<div id="info">
|
||||
The simple REPL provides a limited Python experience in the browser.
|
||||
<a
|
||||
href="https://github.com/python/cpython/blob/main/Tools/wasm/README.md"
|
||||
>
|
||||
Tools/wasm/README.md
|
||||
</a>
|
||||
contains a list of known limitations and issues. Networking,
|
||||
subprocesses, and threading are not available.
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
|
|
|
|||
|
|
@ -1,104 +1,109 @@
|
|||
import createEmscriptenModule from "./python.mjs";
|
||||
|
||||
class StdinBuffer {
|
||||
constructor() {
|
||||
this.sab = new SharedArrayBuffer(128 * Int32Array.BYTES_PER_ELEMENT)
|
||||
this.buffer = new Int32Array(this.sab)
|
||||
this.readIndex = 1;
|
||||
this.numberOfCharacters = 0;
|
||||
this.sentNull = true
|
||||
}
|
||||
constructor() {
|
||||
this.sab = new SharedArrayBuffer(128 * Int32Array.BYTES_PER_ELEMENT);
|
||||
this.buffer = new Int32Array(this.sab);
|
||||
this.readIndex = 1;
|
||||
this.numberOfCharacters = 0;
|
||||
this.sentNull = true;
|
||||
}
|
||||
|
||||
prompt() {
|
||||
this.readIndex = 1
|
||||
Atomics.store(this.buffer, 0, -1)
|
||||
postMessage({
|
||||
type: 'stdin',
|
||||
buffer: this.sab
|
||||
})
|
||||
Atomics.wait(this.buffer, 0, -1)
|
||||
this.numberOfCharacters = this.buffer[0]
|
||||
}
|
||||
prompt() {
|
||||
this.readIndex = 1;
|
||||
Atomics.store(this.buffer, 0, -1);
|
||||
postMessage({
|
||||
type: "stdin",
|
||||
buffer: this.sab,
|
||||
});
|
||||
Atomics.wait(this.buffer, 0, -1);
|
||||
this.numberOfCharacters = this.buffer[0];
|
||||
}
|
||||
|
||||
stdin = () => {
|
||||
while (this.numberOfCharacters + 1 === this.readIndex) {
|
||||
if (!this.sentNull) {
|
||||
// Must return null once to indicate we're done for now.
|
||||
this.sentNull = true
|
||||
return null
|
||||
}
|
||||
this.sentNull = false
|
||||
// Prompt will reset this.readIndex to 1
|
||||
this.prompt()
|
||||
}
|
||||
const char = this.buffer[this.readIndex]
|
||||
this.readIndex += 1
|
||||
return char
|
||||
stdin = () => {
|
||||
while (this.numberOfCharacters + 1 === this.readIndex) {
|
||||
if (!this.sentNull) {
|
||||
// Must return null once to indicate we're done for now.
|
||||
this.sentNull = true;
|
||||
return null;
|
||||
}
|
||||
this.sentNull = false;
|
||||
// Prompt will reset this.readIndex to 1
|
||||
this.prompt();
|
||||
}
|
||||
const char = this.buffer[this.readIndex];
|
||||
this.readIndex += 1;
|
||||
return char;
|
||||
};
|
||||
}
|
||||
|
||||
const stdout = (charCode) => {
|
||||
if (charCode) {
|
||||
postMessage({
|
||||
type: 'stdout',
|
||||
stdout: charCode,
|
||||
})
|
||||
} else {
|
||||
console.log(typeof charCode, charCode)
|
||||
}
|
||||
}
|
||||
if (charCode) {
|
||||
postMessage({
|
||||
type: "stdout",
|
||||
stdout: charCode,
|
||||
});
|
||||
} else {
|
||||
console.log(typeof charCode, charCode);
|
||||
}
|
||||
};
|
||||
|
||||
const stderr = (charCode) => {
|
||||
if (charCode) {
|
||||
postMessage({
|
||||
type: 'stderr',
|
||||
stderr: charCode,
|
||||
})
|
||||
} else {
|
||||
console.log(typeof charCode, charCode)
|
||||
}
|
||||
}
|
||||
if (charCode) {
|
||||
postMessage({
|
||||
type: "stderr",
|
||||
stderr: charCode,
|
||||
});
|
||||
} else {
|
||||
console.log(typeof charCode, charCode);
|
||||
}
|
||||
};
|
||||
|
||||
const stdinBuffer = new StdinBuffer()
|
||||
const stdinBuffer = new StdinBuffer();
|
||||
|
||||
const emscriptenSettings = {
|
||||
noInitialRun: true,
|
||||
stdin: stdinBuffer.stdin,
|
||||
stdout: stdout,
|
||||
stderr: stderr,
|
||||
onRuntimeInitialized: () => {
|
||||
postMessage({type: 'ready', stdinBuffer: stdinBuffer.sab})
|
||||
},
|
||||
async preRun(Module) {
|
||||
const versionHex = Module.HEAPU32[Module._Py_Version/4].toString(16);
|
||||
const versionTuple = versionHex.padStart(8, "0").match(/.{1,2}/g).map((x) => parseInt(x, 16));
|
||||
const [major, minor, ..._] = versionTuple;
|
||||
// Prevent complaints about not finding exec-prefix by making a lib-dynload directory
|
||||
Module.FS.mkdirTree(`/lib/python${major}.${minor}/lib-dynload/`);
|
||||
Module.addRunDependency("install-stdlib");
|
||||
const resp = await fetch(`python${major}.${minor}.zip`);
|
||||
const stdlibBuffer = await resp.arrayBuffer();
|
||||
Module.FS.writeFile(`/lib/python${major}${minor}.zip`, new Uint8Array(stdlibBuffer), { canOwn: true });
|
||||
Module.removeRunDependency("install-stdlib");
|
||||
}
|
||||
}
|
||||
noInitialRun: true,
|
||||
stdin: stdinBuffer.stdin,
|
||||
stdout: stdout,
|
||||
stderr: stderr,
|
||||
onRuntimeInitialized: () => {
|
||||
postMessage({ type: "ready", stdinBuffer: stdinBuffer.sab });
|
||||
},
|
||||
async preRun(Module) {
|
||||
const versionHex = Module.HEAPU32[Module._Py_Version / 4].toString(16);
|
||||
const versionTuple = versionHex
|
||||
.padStart(8, "0")
|
||||
.match(/.{1,2}/g)
|
||||
.map((x) => parseInt(x, 16));
|
||||
const [major, minor, ..._] = versionTuple;
|
||||
// Prevent complaints about not finding exec-prefix by making a lib-dynload directory
|
||||
Module.FS.mkdirTree(`/lib/python${major}.${minor}/lib-dynload/`);
|
||||
Module.addRunDependency("install-stdlib");
|
||||
const resp = await fetch(`python${major}.${minor}.zip`);
|
||||
const stdlibBuffer = await resp.arrayBuffer();
|
||||
Module.FS.writeFile(
|
||||
`/lib/python${major}${minor}.zip`,
|
||||
new Uint8Array(stdlibBuffer),
|
||||
{ canOwn: true },
|
||||
);
|
||||
Module.removeRunDependency("install-stdlib");
|
||||
},
|
||||
};
|
||||
|
||||
const modulePromise = createEmscriptenModule(emscriptenSettings);
|
||||
|
||||
|
||||
onmessage = async (event) => {
|
||||
if (event.data.type === 'run') {
|
||||
const Module = await modulePromise;
|
||||
if (event.data.files) {
|
||||
for (const [filename, contents] of Object.entries(event.data.files)) {
|
||||
Module.FS.writeFile(filename, contents)
|
||||
}
|
||||
}
|
||||
const ret = Module.callMain(event.data.args);
|
||||
postMessage({
|
||||
type: 'finished',
|
||||
returnCode: ret
|
||||
})
|
||||
if (event.data.type === "run") {
|
||||
const Module = await modulePromise;
|
||||
if (event.data.files) {
|
||||
for (const [filename, contents] of Object.entries(event.data.files)) {
|
||||
Module.FS.writeFile(filename, contents);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
const ret = Module.callMain(event.data.args);
|
||||
postMessage({
|
||||
type: "finished",
|
||||
returnCode: ret,
|
||||
});
|
||||
}
|
||||
};
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue