55 lines
1.6 KiB
Plaintext
55 lines
1.6 KiB
Plaintext
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.delay = exports.DelayedConstructor = void 0;
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class DelayedConstructor {
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constructor(wrap) {
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this.wrap = wrap;
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this.reflectMethods = [
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"get",
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"getPrototypeOf",
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"setPrototypeOf",
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"getOwnPropertyDescriptor",
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"defineProperty",
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"has",
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"set",
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"deleteProperty",
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"apply",
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"construct",
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"ownKeys"
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];
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}
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createProxy(createObject) {
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const target = {};
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let init = false;
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let value;
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const delayedObject = () => {
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if (!init) {
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value = createObject(this.wrap());
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init = true;
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}
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return value;
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};
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return new Proxy(target, this.createHandler(delayedObject));
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}
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createHandler(delayedObject) {
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const handler = {};
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const install = (name) => {
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handler[name] = (...args) => {
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args[0] = delayedObject();
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const method = Reflect[name];
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return method(...args);
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};
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};
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this.reflectMethods.forEach(install);
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return handler;
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}
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}
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exports.DelayedConstructor = DelayedConstructor;
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function delay(wrappedConstructor) {
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if (typeof wrappedConstructor === "undefined") {
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throw new Error("Attempt to `delay` undefined. Constructor must be wrapped in a callback");
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}
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return new DelayedConstructor(wrappedConstructor);
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}
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exports.delay = delay;
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