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MIRROR: javascript for 🐜's, a tiny runtime with big ambitions ant.themackabu.dev
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123456789101112131415161718192021222324const assert = require('node:assert');
const source = Buffer.from('HTTP/1.1 200 OK\r\nX-Test: yes\r\n\r\nbody');const FastBuffer = Buffer[Symbol.species];
assert.strictEqual(typeof FastBuffer, 'function');
const status = new FastBuffer(source.buffer, source.byteOffset + 13, 2);assert(Buffer.isBuffer(status));assert.strictEqual(status.toString(), 'OK');
const shared = Buffer.from(source.buffer, source.byteOffset + 17, 6);assert(Buffer.isBuffer(shared));assert.strictEqual(shared.toString(), 'X-Test');
source[17] = 'Y'.charCodeAt(0);assert.strictEqual(shared.toString(), 'Y-Test');assert.strictEqual(source.utf8Slice(13, 15), 'OK');assert.strictEqual(Buffer.from('aéz').utf8Slice(1, 3), 'é');assert.strictEqual(Buffer.from([0x61, 0xc3, 0x28, 0x62]).utf8Slice(0, 4), 'a�(b');assert(Buffer.isBuffer(Buffer.allocUnsafeSlow(4)));
console.log('buffer:species-arraybuffer:ok');