| import validate from './validate.js'; |
| const byteToHex = []; |
| for (let i = 0; i < 256; ++i) { |
| byteToHex.push((i + 0x100).toString(16).slice(1)); |
| } |
| export function unsafeStringify(arr, offset = 0) { |
| return (byteToHex[arr[offset + 0]] + |
| byteToHex[arr[offset + 1]] + |
| byteToHex[arr[offset + 2]] + |
| byteToHex[arr[offset + 3]] + |
| '-' + |
| byteToHex[arr[offset + 4]] + |
| byteToHex[arr[offset + 5]] + |
| '-' + |
| byteToHex[arr[offset + 6]] + |
| byteToHex[arr[offset + 7]] + |
| '-' + |
| byteToHex[arr[offset + 8]] + |
| byteToHex[arr[offset + 9]] + |
| '-' + |
| byteToHex[arr[offset + 10]] + |
| byteToHex[arr[offset + 11]] + |
| byteToHex[arr[offset + 12]] + |
| byteToHex[arr[offset + 13]] + |
| byteToHex[arr[offset + 14]] + |
| byteToHex[arr[offset + 15]]).toLowerCase(); |
| } |
| function stringify(arr, offset = 0) { |
| const uuid = unsafeStringify(arr, offset); |
| if (!validate(uuid)) { |
| throw TypeError('Stringified UUID is invalid'); |
| } |
| return uuid; |
| } |
| export default stringify; |