102 lines
3.8 KiB
JavaScript
Executable File
102 lines
3.8 KiB
JavaScript
Executable File
#!/usr/bin/env node
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'use strict';
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const crypto = require('crypto');
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function parseArgs(argv) {
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const args = { json: false, markdown: false };
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for (let i = 2; i < argv.length; i++) {
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const a = argv[i];
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if (a === '--json') args.json = true;
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else if (a === '--markdown') args.markdown = true;
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else if (a === '--help' || a === '-h') args.help = true;
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else throw new Error(`未知参数：${a}`);
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}
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if (!args.json && !args.markdown) args.markdown = true;
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return args;
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}
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function usage() {
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return `用法：
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node scripts/precheck_runtime.js --markdown
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node scripts/precheck_runtime.js --json
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说明：输出 Node.js 侧纯计算预检结果；浏览器侧需运行同类片段后人工比对。`;
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}
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function collect() {
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const emoji = '中文🙂𠮷';
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const params = new URLSearchParams();
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params.append('b', '2');
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params.append('a', '1 2');
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params.append('emoji', '🙂');
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const encoder = new TextEncoder();
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const bytes = Array.from(encoder.encode(emoji));
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const random = new Uint8Array(8);
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if (globalThis.crypto && typeof globalThis.crypto.getRandomValues === 'function') globalThis.crypto.getRandomValues(random);
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else random.set(crypto.randomBytes(8));
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return {
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node: { version: process.version, platform: process.platform, arch: process.arch, v8: process.versions.v8 },
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math: {
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imul: Math.imul(0x7fffffff, 31),
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fround: Math.fround(0.1),
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pow: Math.pow(2, 53) - 1,
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trig: Number(Math.sin(Math.PI / 6).toFixed(12)),
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},
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stringUnicode: {
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sample: emoji,
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length: emoji.length,
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codePoints: Array.from(emoji).map(ch => ch.codePointAt(0).toString(16)),
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normalized: emoji.normalize('NFC'),
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},
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arrayObject: {
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sort: ['10', '2', '1'].sort(),
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numericSort: [10, 2, 1].sort((a, b) => a - b),
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jsonOrder: JSON.stringify({ b: 2, a: 1, 1: 'one', 0: 'zero' }),
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keys: Object.keys({ b: 2, a: 1, 1: 'one', 0: 'zero' }),
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},
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dateTimezone: {
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timezoneOffset: new Date('2020-01-02T03:04:05Z').getTimezoneOffset(),
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iso: new Date(1577934245000).toISOString(),
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locale: new Date(1577934245000).toString(),
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},
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encoding: {
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textEncoderBytes: bytes,
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urlSearchParams: params.toString(),
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encodeURIComponent: encodeURIComponent(emoji),
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btoaAscii: Buffer.from('abc123', 'binary').toString('base64'),
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atobAscii: Buffer.from('YWJjMTIz', 'base64').toString('binary'),
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},
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random: {
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mathRandomType: typeof Math.random(),
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cryptoBytesSample: Array.from(random),
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note: '随机值只用于确认 API 可用；正式 fixtures 应固定随机源。',
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},
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};
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}
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function renderMarkdown(result) {
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const lines = ['# Node.js 纯计算预检结果', '', `- Node.js：${result.node.version}`, `- 平台：${result.node.platform}-${result.node.arch}`, `- V8：${result.node.v8}`];
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for (const [section, value] of Object.entries(result)) {
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if (section === 'node') continue;
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lines.push('', `## ${section}`);
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for (const [k, v] of Object.entries(value)) lines.push(`- ${k}：${Array.isArray(v) ? JSON.stringify(v) : String(v)}`);
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}
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lines.push('', '## 下一步');
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lines.push('- 在浏览器控制台运行同类预检片段，保存为 `notes/runtime-precheck-browser.json`。');
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lines.push('- 若 Node 与浏览器基础计算一致，再继续排查环境对象、初始化参数和样本差异。');
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return lines.join('\n') + '\n';
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}
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try {
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const args = parseArgs(process.argv);
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if (args.help) { console.log(usage()); process.exit(0); }
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const result = collect();
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if (args.json) console.log(JSON.stringify(result, null, 2));
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if (args.markdown) process.stdout.write(renderMarkdown(result));
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} catch (err) {
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console.error(err.message || String(err));
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console.error(usage());
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process.exit(1);
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}
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