@jbrowse/core/esm/util/compositeMap.js

JBrowse 2 core libraries used by plugins

export default class CompositeMap {
    submaps;
    constructor(submaps) {
        this.submaps = submaps;
    }
    has(id) {
        for (const submap of this.submaps.values()) {
            if (submap.has(id)) {
                return true;
            }
        }
        return false;
    }
    get(id) {
        for (const submap of this.submaps.values()) {
            if (submap.has(id)) {
                return submap.get(id);
            }
        }
        return undefined;
    }
    *values() {
        for (const key of this.keys()) {
            yield this.get(key);
        }
    }
    *keys() {
        const keys = new Set();
        for (const submap of this.submaps.values()) {
            for (const key of submap.keys()) {
                keys.add(key);
            }
        }
        for (const key of keys) {
            yield key;
        }
    }
    find(f) {
        for (const submap of this.submaps.values()) {
            for (const value of submap.values()) {
                const found = f(value);
                if (found) {
                    return value;
                }
            }
        }
        return undefined;
    }
    *[Symbol.iterator]() {
        for (const key of this.keys()) {
            yield [key, this.get(key)];
        }
    }
    *entries() {
        for (const k of this.keys()) {
            yield [k, this.get(k)];
        }
    }
}