Quelle pause-scoped.js Sprache: JAVA

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

const { ObjectActor } = require("resource://devtools/server/actors/object.js");

class PauseScopedObjectActor extends ObjectActor {
  /**
   * Creates a pause-scoped actor for the specified object.
   * @see ObjectActor
   */
  constructor(threadActor, obj, hooks) {
    super(threadActor, obj, hooks);

    const guardWithPaused = [
      "decompile",
      "displayString",
      "ownPropertyNames",
      "parameterNames",
      "property",
      "prototype",
      "prototypeAndProperties",
      "scope",
    ];

    for (const methodName of guardWithPaused) {
      this[methodName] = this.withPaused(this[methodName]);
    }

    // Cache this thread actor attribute as we may query it after the actor destruction.
    this.threadLifetimePool = this.threadActor.threadLifetimePool;
  }

  isThreadLifetimePool() {
    return this.getParent() === this.threadLifetimePool;
  }

  isPaused() {
    return this.threadActor ? this.threadActor.state === "paused" : true;
  }

  withPaused(method) {
    return function () {
      if (this.isPaused()) {
        return method.apply(this, arguments);
      }

      return {
        error: "wrongState",
        message:
          this.constructor.name +
          " actors can only be accessed while the thread is paused.",
      };
    };
  }

  /**
   * Handle a protocol request to promote a pause-lifetime grip to a
   * thread-lifetime grip.
   *
   * This method isn't used by DevTools frontend, but by VS Code Firefox adapter
   * in order to keep the object actor alive after resume and be able to remove
   * watchpoints.
   */
  threadGrip() {
    this.threadActor.promoteObjectToThreadLifetime(this);
    return {};
  }

  /**
   * Handle a protocol request to release a thread-lifetime grip.
   */
  destroy() {
    if (!this.isThreadLifetimePool()) {
      return {
        error: "notReleasable",
        message: "Only thread-lifetime actors can be released.",
      };
    }

    super.destroy();
    return null;
  }
}

exports.PauseScopedObjectActor = PauseScopedObjectActor;

quality95%

¤ Dauer der Verarbeitung: 0.14 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.