@nesvet/n/dist/StatefulPromise.js

Various utilities

/* eslint-disable @typescript-eslint/no-explicit-any */
const nativesMap = new WeakMap();
export class StatefulPromise extends Promise {
    constructor(executor) {
        let nativeResolve;
        let nativeReject;
        super((resolve, reject) => {
            nativeResolve = resolve;
            nativeReject = reject;
        });
        nativesMap.set(this, { resolve: nativeResolve, reject: nativeReject });
        executor?.(this.resolve, this.reject);
    }
    isPending = true;
    isFulfilled = false;
    isRejected = false;
    state = "pending";
    result;
    resolve = (value) => {
        if (this.isPending) {
            this.isPending = false;
            this.isFulfilled = true;
            this.state = "fulfilled";
            this.result = value;
            const native = nativesMap.get(this);
            if (native) {
                native.resolve.call(this, value);
                nativesMap.delete(this);
            }
        }
    };
    reject = (reason) => {
        if (this.isPending) {
            this.isPending = false;
            this.isRejected = true;
            this.state = "rejected";
            this.result = reason;
            const native = nativesMap.get(this);
            if (native) {
                native.reject.call(this, reason);
                nativesMap.delete(this);
            }
        }
    };
}
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