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| 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 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | 15x 15x 15x 15x 7x 35x 35x 30x 30x 5x 15x 15x 12x 12x 6x 6x 6x | import type {CompactUndefinedOp, OPCODE_UNDEFINED} from '../codec/compact/types';
import {AbstractPredicateOp} from './AbstractPredicateOp';
import type {OperationUndefined} from '../types';
import {find, type Path, formatJsonPointer} from '@jsonjoy.com/json-pointer';
import {OPCODE} from '../constants';
import type {AbstractOp} from './AbstractOp';
import type {IMessagePackEncoder} from '@jsonjoy.com/json-pack/lib/msgpack';
/**
* @category JSON Predicate
*/
export class OpUndefined extends AbstractPredicateOp<'undefined'> {
public op() {
return 'undefined' as const;
}
public code() {
return OPCODE.undefined;
}
public test(doc: unknown) {
try {
const {val} = find(doc, this.path);
const test = val === undefined;
return test;
} catch (error) {
if ((error as Error).message === 'NOT_FOUND') return true;
throw error;
}
}
public toJson(parent?: AbstractOp): OperationUndefined {
const op: OperationUndefined = {
op: 'undefined',
path: formatJsonPointer(parent ? this.path.slice(parent.path.length) : this.path),
};
return op;
}
public toCompact(parent: undefined | AbstractOp, verbose: boolean): CompactUndefinedOp {
const opcode: OPCODE_UNDEFINED = verbose ? 'undefined' : OPCODE.undefined;
return [opcode, parent ? this.path.slice(parent.path.length) : this.path];
}
public encode(encoder: IMessagePackEncoder, parent?: AbstractOp) {
encoder.encodeArrayHeader(2);
encoder.writer.u8(OPCODE.undefined);
encoder.encodeArray(parent ? this.path.slice(parent.path.length) : (this.path as unknown[]));
}
}
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