ow/dist/predicates/weak-set.js

Function argument validation for humans

import hasItems from '../utils/has-items.js';
import { Predicate } from './predicate.js';
export class WeakSetPredicate extends Predicate {
    /**
    @hidden
    */
    constructor(options) {
        super('WeakSet', options);
    }
    /**
    Test a WeakSet to include all the provided items. The items are tested by identity, not structure.

    @param items - The items that should be a item in the WeakSet.
    */
    has(...items) {
        return this.addValidator({
            message: (_, label, missingItems) => `Expected ${label} to have items \`${JSON.stringify(missingItems)}\``,
            validator: set => hasItems(set, items),
        });
    }
    /**
    Test a WeakSet to include any of the provided items. The items are tested by identity, not structure.

    @param items - The items that could be a item in the WeakSet.
    */
    hasAny(...items) {
        return this.addValidator({
            message: (_, label) => `Expected ${label} to have any item of \`${JSON.stringify(items)}\``,
            validator: set => items.some(item => set.has(item)),
        });
    }
}