@xylabs/promise/dist/neutral/index.mjs

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

// src/fulfilled.ts
var fulfilled = (val) => {
  return val.status === "fulfilled";
};

// src/fulfilledValues.ts
var fulfilledValues = (previousValue, currentValue) => {
  if (currentValue.status === "fulfilled") previousValue.push(currentValue.value);
  return previousValue;
};

// src/PromiseEx.ts
var PromiseEx = class extends Promise {
  /** Whether the promise has been cancelled via a value callback. */
  cancelled;
  _value;
  constructor(func, value) {
    super(func);
    this._value = value;
  }
  // eslint-disable-next-line unicorn/no-thenable
  then(onfulfilled, onrejected, onvalue) {
    if (onvalue?.(this._value)) {
      this.cancelled = true;
    }
    return super.then(onfulfilled, onrejected);
  }
  /**
   * Inspects the attached value via the callback; if it returns true, marks the promise as cancelled.
   * @param onvalue - A callback that receives the attached value and returns whether to cancel.
   * @returns This instance for chaining.
   */
  value(onvalue) {
    if (onvalue?.(this._value)) {
      this.cancelled = true;
    }
    return this;
  }
};

// src/rejected.ts
var rejected = (val) => {
  return val.status === "rejected";
};

// src/toPromise.ts
function toPromise(value) {
  return value instanceof Promise ? value : Promise.resolve(value);
}
export {
  PromiseEx,
  fulfilled,
  fulfilledValues,
  rejected,
  toPromise
};
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