@woosh/meep-engine/src/core/debug/matchers/CombinableMatcher.js

Pure JavaScript game engine. Fully featured and production ready.

import { BaseMatcher } from "../BaseMatcher.js";
import { NullDescription } from "../NullDescription.js";
import { AllOf } from "./AllOf.js";
import { AnyOf } from "./AnyOf.js";

export class CombinableMatcher extends BaseMatcher {

    /**
     * @type {Matcher}
     */
    #matcher

    /**
     *
     * @param {Matcher} matcher
     */
    constructor(matcher) {
        super();
        this.#matcher = matcher;
    }


    matches(item, mismatch_description) {
        if (!this.#matcher.matches(item, NullDescription.INSTANCE)) {
            this.#matcher.describeMismatch(item, mismatch_description);
            return false;
        }

        return true;
    }

    describeTo(description) {
        description.appendDescriptionOf(this.#matcher);
    }

    /**
     *
     * @param {Matcher} other
     * @return {CombinableMatcher}
     */
    and(other) {
        return new CombinableMatcher(new AllOf([this.#matcher, other]))
    }

    /**
     *
     * @param {Matcher} other
     * @return {CombinableMatcher}
     */
    or(other) {
        return new CombinableMatcher(new AnyOf([this.#matcher, other]));
    }
}