12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364 |
- import stringify from './stringify.js';
- import parse from './parse.js';
- function stringToBytes(str) {
- str = unescape(encodeURIComponent(str)); // UTF8 escape
- const bytes = [];
- for (let i = 0; i < str.length; ++i) {
- bytes.push(str.charCodeAt(i));
- }
- return bytes;
- }
- export const DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8';
- export const URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8';
- export default function (name, version, hashfunc) {
- function generateUUID(value, namespace, buf, offset) {
- if (typeof value === 'string') {
- value = stringToBytes(value);
- }
- if (typeof namespace === 'string') {
- namespace = parse(namespace);
- }
- if (namespace.length !== 16) {
- throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)');
- } // Compute hash of namespace and value, Per 4.3
- // Future: Use spread syntax when supported on all platforms, e.g. `bytes =
- // hashfunc([...namespace, ... value])`
- let bytes = new Uint8Array(16 + value.length);
- bytes.set(namespace);
- bytes.set(value, namespace.length);
- bytes = hashfunc(bytes);
- bytes[6] = bytes[6] & 0x0f | version;
- bytes[8] = bytes[8] & 0x3f | 0x80;
- if (buf) {
- offset = offset || 0;
- for (let i = 0; i < 16; ++i) {
- buf[offset + i] = bytes[i];
- }
- return buf;
- }
- return stringify(bytes);
- } // Function#name is not settable on some platforms (#270)
- try {
- generateUUID.name = name; // eslint-disable-next-line no-empty
- } catch (err) {} // For CommonJS default export support
- generateUUID.DNS = DNS;
- generateUUID.URL = URL;
- return generateUUID;
- }
|