72 lines
1.9 KiB
JavaScript
72 lines
1.9 KiB
JavaScript
// src/createDeferredExecutor.ts
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function createDeferredExecutor() {
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const executor = (resolve, reject) => {
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executor.state = "pending";
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executor.resolve = (data) => {
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if (executor.state !== "pending") {
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return;
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}
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executor.result = data;
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const onFulfilled = (value) => {
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executor.state = "fulfilled";
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return value;
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};
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return resolve(
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data instanceof Promise ? data : Promise.resolve(data).then(onFulfilled)
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);
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};
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executor.reject = (reason) => {
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if (executor.state !== "pending") {
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return;
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}
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queueMicrotask(() => {
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executor.state = "rejected";
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});
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return reject(executor.rejectionReason = reason);
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};
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};
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return executor;
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}
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// src/DeferredPromise.ts
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var DeferredPromise = class extends Promise {
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#executor;
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resolve;
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reject;
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constructor(executor = null) {
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const deferredExecutor = createDeferredExecutor();
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super((originalResolve, originalReject) => {
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deferredExecutor(originalResolve, originalReject);
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executor?.(deferredExecutor.resolve, deferredExecutor.reject);
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});
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this.#executor = deferredExecutor;
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this.resolve = this.#executor.resolve;
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this.reject = this.#executor.reject;
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}
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get state() {
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return this.#executor.state;
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}
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get rejectionReason() {
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return this.#executor.rejectionReason;
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}
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then(onFulfilled, onRejected) {
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return this.#decorate(super.then(onFulfilled, onRejected));
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}
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catch(onRejected) {
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return this.#decorate(super.catch(onRejected));
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}
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finally(onfinally) {
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return this.#decorate(super.finally(onfinally));
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}
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#decorate(promise) {
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return Object.defineProperties(promise, {
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resolve: { configurable: true, value: this.resolve },
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reject: { configurable: true, value: this.reject }
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});
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}
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};
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export {
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DeferredPromise,
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createDeferredExecutor
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};
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//# sourceMappingURL=index.mjs.map
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