hakojs/dist/esm/helpers/deferred-promise.js

A secure, embeddable JavaScript engine that runs untrusted code inside WebAssembly sandboxes with fine-grained permissions and resource limits

// src/helpers/deferred-promise.ts
class HakoDeferredPromise {
  owner;
  context;
  handle;
  settled;
  resolveHandle;
  rejectHandle;
  onSettled;
  constructor(args) {
    this.context = args.context;
    this.owner = args.context.runtime;
    this.handle = args.promiseHandle;
    this.settled = new Promise((resolve) => {
      this.onSettled = resolve;
    });
    this.resolveHandle = args.resolveHandle;
    this.rejectHandle = args.rejectHandle;
  }
  resolve = (value) => {
    if (!this.resolveHandle.alive) {
      return;
    }
    this.context.unwrapResult(this.context.callFunction(this.resolveHandle, this.context.undefined(), value || this.context.undefined())).dispose();
    this.disposeResolvers();
    this.onSettled();
  };
  reject = (value) => {
    if (!this.rejectHandle.alive) {
      return;
    }
    this.context.unwrapResult(this.context.callFunction(this.rejectHandle, this.context.undefined(), value || this.context.undefined())).dispose();
    this.disposeResolvers();
    this.onSettled();
  };
  get alive() {
    return this.handle.alive || this.resolveHandle.alive || this.rejectHandle.alive;
  }
  dispose = () => {
    if (this.handle.alive) {
      this.handle.dispose();
    }
    this.disposeResolvers();
  };
  disposeResolvers() {
    if (this.resolveHandle.alive) {
      this.resolveHandle.dispose();
    }
    if (this.rejectHandle.alive) {
      this.rejectHandle.dispose();
    }
  }
  [Symbol.dispose]() {
    this.dispose();
  }
}
export {
  HakoDeferredPromise
};

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