michael@0: "use strict";
michael@0: const Cc = Components.classes;
michael@0: const Ci = Components.interfaces;
michael@0: const Cu = Components.utils;
michael@0: const Cr = Components.results;
michael@0: 
michael@0: const { devtools } = Cu.import("resource://gre/modules/devtools/Loader.jsm", {});
michael@0: const { require } = devtools;
michael@0: 
michael@0: this.sourceMap = require("source-map");
michael@0: this.acorn = require("acorn/acorn");
michael@0: this.prettyFast = require("devtools/pretty-fast");
michael@0: const { console } = Cu.import("resource://gre/modules/devtools/Console.jsm", {});
michael@0: 
michael@0: // Register a console listener, so console messages don't just disappear
michael@0: // into the ether.
michael@0: let errorCount = 0;
michael@0: let listener = {
michael@0:   observe: function (aMessage) {
michael@0:     errorCount++;
michael@0:     try {
michael@0:       // If we've been given an nsIScriptError, then we can print out
michael@0:       // something nicely formatted, for tools like Emacs to pick up.
michael@0:       var scriptError = aMessage.QueryInterface(Ci.nsIScriptError);
michael@0:       dump(aMessage.sourceName + ":" + aMessage.lineNumber + ": " +
michael@0:            scriptErrorFlagsToKind(aMessage.flags) + ": " +
michael@0:            aMessage.errorMessage + "\n");
michael@0:       var string = aMessage.errorMessage;
michael@0:     } catch (x) {
michael@0:       // Be a little paranoid with message, as the whole goal here is to lose
michael@0:       // no information.
michael@0:       try {
michael@0:         var string = "" + aMessage.message;
michael@0:       } catch (x) {
michael@0:         var string = "<error converting error message to string>";
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     do_throw("head_pretty-fast.js got console message: " + string + "\n");
michael@0:   }
michael@0: };
michael@0: 
michael@0: let consoleService = Cc["@mozilla.org/consoleservice;1"].getService(Ci.nsIConsoleService);
michael@0: consoleService.registerListener(listener);
michael@0: