ionstore/dist/abstract.js

A very simple isomorphic key-value store with a Map-like API for persisting session data.

/* IMPORT */
var __classPrivateFieldSet = (this && this.__classPrivateFieldSet) || function (receiver, state, value, kind, f) {
    if (kind === "m") throw new TypeError("Private method is not writable");
    if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a setter");
    if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot write private member to an object whose class did not declare it");
    return (kind === "a" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;
};
var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, state, kind, f) {
    if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
    if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot read private member from an object whose class did not declare it");
    return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
};
var _AbstractStore_save;
import { attempt } from './utils.js';
/* MAIN */
class AbstractStore extends Map {
    /* CONSTRUCTOR */
    constructor(options) {
        super();
        /* VARIABLES */
        _AbstractStore_save.set(this, void 0);
        const { id, backend } = options;
        if (!/^[a-zA-Z0-9_-]+$/.test(id))
            throw new Error(`Invalid store id: "${id}"`);
        const read = () => attempt(() => backend.read(id), []);
        const write = () => attempt(() => backend.write(id, this.entries()), null);
        for (const [key, value] of read()) {
            super.set(key, value);
        }
        __classPrivateFieldSet(this, _AbstractStore_save, write, "f");
        return this;
    }
    /* API */
    clear() {
        if (!this.size)
            return;
        super.clear();
        __classPrivateFieldGet(this, _AbstractStore_save, "f").call(this);
    }
    delete(key) {
        const deleted = super.delete(key);
        if (!deleted)
            return false;
        __classPrivateFieldGet(this, _AbstractStore_save, "f").call(this);
        return true;
    }
    set(key, value) {
        const valuePrev = this.get(key);
        if (value === valuePrev)
            return this;
        super.set(key, value);
        __classPrivateFieldGet(this, _AbstractStore_save, "f").call(this);
        return this;
    }
}
_AbstractStore_save = new WeakMap();
/* EXPORT */
export default AbstractStore;