v8-debug

v8-debug

Provides extending API for node internal debugger protocol (based on v8 debugger protocol)

This is a part of node-inspector.

Installation

npm install v8-debug

API

Command	Params	Type	Description
registerCommand			Register new debug processor command, like 'lookup'. (Alias register)
	name	{String}	Name of command.
	callback	{Function}	function(request, response) modify your response in this function.
registerEvent			Register new debug processor event, like 'break'.
	name	{String}	Name of command.
execCommand			Call debug processor command like 'lookup'. (Alias command)
	name	{String}	Name of command.
	attributes	{Object}	Extra parameters, that passes as command arguments.
	userdata	{Object}	Data than needs to be stored, but can't be serialised before call processor callback. (Not implemented now)
emitEvent			Like execCommand
commandToEvent			Convert command response object to default event object with same name
	request	{Object}	Request object created by debugger
	response	{Object}	Response object that needs to be converted
runInDebugContext			Evaluate string or function (stringifyed) in debug context. (Alias get)
	script	{String/Function}	*String or clear function that needs to be evaluated in debug context *

Usage

var debug = require('v8-debug');
var MakeMirror = debug.get('MakeMirror');

//register 'console' event in v8 debugger protocol
debug.registerEvent('console');
//Now debugger can emit new event 'console'

//register '_lookup' command in v8 debugger protocol
debug.registerCommand('_lookup', function(request, response) {
  //do someting here
  //and modify response
  response.body = {};
});

console.log = (function(fn) {
  return function() {
    //Call 'console' command. (Emit console event)
    debug.emitEvent('console', {message: arguments[0]} /*, userdata*/);
    return fn.apply(console, arguments);
  }
} (console.log));

For more experience see protocol documentation