Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | 1x 1x 1x 1x 12x 10x 10x 10x 22x 22x 22x 22x 22x 22x 5x 4x 4x 4x 17x 16x 1x 8x | import {hasOwnProperty as has} from '@jsonjoy.com/util/lib/hasOwnProperty';
import type {Reference} from '../find';
import {unescapeComponent} from '../util';
const {isArray} = Array;
export const findByPointer = (pointer: string, val: unknown): Reference => {
if (!pointer) return {val};
let obj: Reference['obj'];
let key: Reference['key'];
let indexOfSlash = 0;
let indexAfterSlash = 1;
while (indexOfSlash > -1) {
indexOfSlash = pointer.indexOf('/', indexAfterSlash);
const component: string =
indexOfSlash > -1 ? pointer.substring(indexAfterSlash, indexOfSlash) : pointer.substring(indexAfterSlash);
indexAfterSlash = indexOfSlash + 1;
key = unescapeComponent(component);
obj = val;
if (isArray(obj)) {
if (key === '-') key = obj.length;
else {
// if (!isValidIndex(key)) throw new Error('INVALID_INDEX');
key = ~~key;
if (key < 0) throw new Error('INVALID_INDEX');
}
val = has(obj, key as any) ? obj[~~key] : undefined;
} else if (typeof obj === 'object' && !!obj) {
val = has(obj, key) ? (obj as any)[key] : undefined;
} else throw new Error('NOT_FOUND');
}
return {val, obj, key};
};
|