@action-land/component/src/listComponentState.js

Basic interface for a component

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const standard_data_structures_1 = require("standard-data-structures");
class ListComponentState {
    constructor(baseInit, keys, hashMap) {
        this.baseInit = baseInit;
        this.keys = keys;
        this.hashMap = hashMap;
    }
    static of(baseInit) {
        return new ListComponentState(baseInit, standard_data_structures_1.List.empty(), standard_data_structures_1.HashMap.of());
    }
    set(k, value = this.baseInit()) {
        const items = this.hashMap.has(k) ? this.keys : this.keys.prepend(k);
        return new ListComponentState(this.baseInit, items, this.hashMap.set(k, value));
    }
    get(k) {
        return this.hashMap.get(k);
    }
    fold(s, fn) {
        return ListComponentState.fold(this, s, fn);
    }
    static fold(L, T, fn) {
        return L.keys.fold(T, (key, acc) => fn(L.hashMap.get(key).getOrElse(L.baseInit()), key, acc));
    }
    static toArray(L) {
        return L.asArray;
    }
    has(k) {
        return this.hashMap.has(k);
    }
    get asArray() {
        return this.fold(standard_data_structures_1.List.empty(), (S, L, A) => A.prepend([L, S]))
            .asArray;
    }
}
exports.ListComponentState = ListComponentState;