The Tor Browser: toolkit/devtools/Require.jsm@6474c204b198 (annotated)

toolkit/devtools/Require.jsm@6474c204b198 (annotated)

toolkit/devtools/Require.jsm

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* 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";
 /**
  * Require.jsm is a small module loader that loads JavaScript modules as
  * defined by AMD/RequireJS and CommonJS, or specifically as used by:
  * GCLI, Orion, Firebug, CCDump, NetPanel/HTTPMonitor and others.
  *
  * To date, no attempt has been made to ensure that Require.jsm closely follows
  * either the AMD or CommonJS specs. It is hoped that a more formal JavaScript
  * module standard will arrive before this is necessary. In the mean time it
  * serves the projects it loads.
  */
 this.EXPORTED_SYMBOLS = [ "define", "require" ];
 const console = (function() {
   const tempScope = {};
   Components.utils.import("resource://gre/modules/devtools/Console.jsm", tempScope);
   return tempScope.console;
 })();
 /**
  * Define a module along with a payload.
  * @param moduleName Name for the payload
  * @param deps Ignored. For compatibility with CommonJS AMD Spec
  * @param payload Function with (require, exports, module) params
  */
 this.define = function define(moduleName, deps, payload) {
   if (typeof moduleName != "string") {
     throw new Error("Error: Module name is not a string");
   }
   if (arguments.length == 2) {
     payload = deps;
   }
   else {
     payload.deps = deps;
   }
   if (define.debugDependencies) {
     console.log("define: " + moduleName + " -> " + payload.toString()
         .slice(0, 40).replace(/\n/, '\\n').replace(/\r/, '\\r') + "...");
   }
   if (moduleName in define.modules) {
     throw new Error("Error: Redefining module: " + moduleName);
   }
   // Mark the payload so we know we need to call it to get the real module
   payload.__uncompiled = true;
   define.modules[moduleName] = payload;
 }
 /**
  * The global store of un-instantiated modules
  */
 define.modules = {};
 /**
  * Should we console.log on module definition/instantiation/requirement?
  */
 define.debugDependencies = false;
 /**
  * We invoke require() in the context of a Domain so we can have multiple
  * sets of modules running separate from each other.
  * This contrasts with JSMs which are singletons, Domains allows us to
  * optionally load a CommonJS module twice with separate data each time.
  * Perhaps you want 2 command lines with a different set of commands in each,
  * for example.
  */
 function Domain() {
   this.modules = {};
   if (define.debugDependencies) {
     this.depth = "";
   }
 }
 /**
  * Lookup module names and resolve them by calling the definition function if
  * needed.
  * There are 2 ways to call this, either with an array of dependencies and a
  * callback to call when the dependencies are found (which can happen
  * asynchronously in an in-page context) or with a single string an no
  * callback where the dependency is resolved synchronously and returned.
  * The API is designed to be compatible with the CommonJS AMD spec and
  * RequireJS.
  * @param deps A name, or array of names for the payload
  * @param callback Function to call when the dependencies are resolved
  * @return The module required or undefined for array/callback method
  */
 Domain.prototype.require = function(config, deps, callback) {
   if (arguments.length <= 2) {
     callback = deps;
     deps = config;
     config = undefined;
   }
   if (Array.isArray(deps)) {
     var params = deps.map(function(dep) {
       return this.lookup(dep);
     }, this);
     if (callback) {
       callback.apply(null, params);
     }
     return undefined;
   }
   else {
     return this.lookup(deps);
   }
 };
 /**
  * Lookup module names and resolve them by calling the definition function if
  * needed.
  * @param moduleName A name for the payload to lookup
  * @return The module specified by aModuleName or null if not found
  */
 Domain.prototype.lookup = function(moduleName) {
   if (moduleName in this.modules) {
     var module = this.modules[moduleName];
     if (define.debugDependencies) {
       console.log(this.depth + " Using module: " + moduleName);
     }
     return module;
   }
   if (!(moduleName in define.modules)) {
     throw new Error("Missing module: " + moduleName);
   }
   var module = define.modules[moduleName];
   if (define.debugDependencies) {
     console.log(this.depth + " Compiling module: " + moduleName);
   }
   if (module.__uncompiled) {
     if (define.debugDependencies) {
       this.depth += ".";
     }
     var exports = {};
     try {
       var params = module.deps.map(function(dep) {
         if (dep === "require") {
           return this.require.bind(this);
         }
         if (dep === "exports") {
           return exports;
         }
         if (dep === "module") {
           return { id: moduleName, uri: "" };
         }
         return this.lookup(dep);
       }.bind(this));
       var reply = module.apply(null, params);
       module = (reply !== undefined) ? reply : exports;
     }
     catch (ex) {
       dump("Error using module '" + moduleName + "' - " + ex + "\n");
       throw ex;
     }
     if (define.debugDependencies) {
       this.depth = this.depth.slice(0, -1);
     }
   }
   // cache the resulting module object for next time
   this.modules[moduleName] = module;
   return module;
 };
 /**
  * Expose the Domain constructor and a global domain (on the define function
  * to avoid exporting more than we need. This is a common pattern with
  * require systems)
  */
 define.Domain = Domain;
 define.globalDomain = new Domain();
 /**
  * Expose a default require function which is the require of the global
  * sandbox to make it easy to use.
  */
 this.require = define.globalDomain.require.bind(define.globalDomain);

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toolkit/devtools/Require.jsm@6474c204b198 (annotated)

toolkit/devtools/Require.jsm