58 lines
1.8 KiB
JavaScript
58 lines
1.8 KiB
JavaScript
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import { __read, __spread } from "tslib";
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var DelayedConstructor = (function () {
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function DelayedConstructor(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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DelayedConstructor.prototype.createProxy = function (createObject) {
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var _this = this;
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var target = {};
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var init = false;
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var value;
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var delayedObject = function () {
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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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DelayedConstructor.prototype.createHandler = function (delayedObject) {
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var handler = {};
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var install = function (name) {
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handler[name] = function () {
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var args = [];
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for (var _i = 0; _i < arguments.length; _i++) {
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args[_i] = arguments[_i];
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}
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args[0] = delayedObject();
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var method = Reflect[name];
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return method.apply(void 0, __spread(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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return DelayedConstructor;
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}());
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export { DelayedConstructor };
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export 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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