node/src/node.js at master · waveto/node · GitHub

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(function (process) {

process.global.process = process;

process.global.global = process.global;

global.GLOBAL = global;

/** deprecation errors ************************************************/

function removed (reason) {

return function () {

throw new Error(reason)

}

GLOBAL.__module = removed("'__module' has been renamed to 'module'");

GLOBAL.include = removed("include(module) has been removed. Use require(module)");

GLOBAL.puts = removed("puts() has moved. Use require('sys') to bring it back.");

GLOBAL.print = removed("print() has moved. Use require('sys') to bring it back.");

GLOBAL.p = removed("p() has moved. Use require('sys') to bring it back.");

process.debug = removed("process.debug() has moved. Use require('sys') to bring it back.");

process.error = removed("process.error() has moved. Use require('sys') to bring it back.");

process.watchFile = removed("process.watchFile() has moved to fs.watchFile()");

process.unwatchFile = removed("process.unwatchFile() has moved to fs.unwatchFile()");

process.mixin = removed('process.mixin() has been removed.');

GLOBAL.node = {};

node.createProcess = removed("node.createProcess() has been changed to process.createChildProcess() update your code");

process.createChildProcess = removed("childProcess API has changed. See doc/api.txt.");

node.exec = removed("process.exec() has moved. Use require('sys') to bring it back.");

node.inherits = removed("node.inherits() has moved. Use require('sys') to access it.");

process.inherits = removed("process.inherits() has moved to sys.inherits.");

node.http = {};

node.http.createServer = removed("node.http.createServer() has moved. Use require('http') to access it.");

node.http.createClient = removed("node.http.createClient() has moved. Use require('http') to access it.");

node.tcp = {};

node.tcp.createServer = removed("node.tcp.createServer() has moved. Use require('tcp') to access it.");

node.tcp.createConnection = removed("node.tcp.createConnection() has moved. Use require('tcp') to access it.");

node.dns = {};

node.dns.createConnection = removed("node.dns.createConnection() has moved. Use require('dns') to access it.");

/**********************************************************************/

// Module

var internalModuleCache = {};

var extensionCache = {};

function Module (id, parent) {

this.id = id;

this.exports = {};

this.parent = parent;

if (parent) {

this.moduleCache = parent.moduleCache;

} else {

this.moduleCache = {};

}

this.moduleCache[this.id] = this;

this.filename = null;

this.loaded = false;

this.exited = false;

this.children = [];

};

function createInternalModule (id, constructor) {

var m = new Module(id);

constructor(m.exports);

m.loaded = true;

internalModuleCache[id] = m;

return m;

};

// This contains the source code for the files in lib/

// Like, natives.fs is the contents of lib/fs.js

var natives = process.binding('natives');

function loadNative (id) {

var m = new Module(id);

internalModuleCache[id] = m;

var e = m._compile(natives[id], id);

if (e) throw e;

m.loaded = true;

return m;

}

function requireNative (id) {

if (internalModuleCache[id]) return internalModuleCache[id].exports;

if (!natives[id]) throw new Error('No such native module ' + id);

return loadNative(id).exports;

}

process.assert = function (x, msg) {

if (!(x)) throw new Error(msg || "assertion error");

};

// Event

var eventsModule = createInternalModule('events', function (exports) {

exports.EventEmitter = process.EventEmitter;

// process.EventEmitter is defined in src/node_events.cc

// process.EventEmitter.prototype.emit() is also defined there.

process.EventEmitter.prototype.addListener = function (type, listener) {

if (!(listener instanceof Function)) {

throw new Error('addListener only takes instances of Function');

}

if (!this._events) this._events = {};

// To avoid recursion in the case that type == "newListeners"! Before

// adding it to the listeners, first emit "newListeners".

this.emit("newListener", type, listener);

if (!this._events[type]) {

// Optimize the case of one listener. Don't need the extra array object.

this._events[type] = listener;

} else if (this._events[type] instanceof Array) {

// If we've already got an array, just append.

this._events[type].push(listener);

} else {

// Adding the second element, need to change to array.

this._events[type] = [this._events[type], listener];

}

return this;

};

process.EventEmitter.prototype.removeListener = function (type, listener) {

if (!(listener instanceof Function)) {

throw new Error('removeListener only takes instances of Function');

}

// does not use listeners(), so no side effect of creating _events[type]

if (!this._events || !this._events[type]) return this;

var list = this._events[type];

if (list instanceof Array) {

var i = list.indexOf(listener);

if (i < 0) return this;

list.splice(i, 1);

} else {

this._events[type] = null;

}

return this;

};

process.EventEmitter.prototype.removeAllListeners = function (type) {

// does not use listeners(), so no side effect of creating _events[type]

if (!type || !this._events || !this._events[type]) return this;

this._events[type] = null;

};

process.EventEmitter.prototype.listeners = function (type) {

if (!this._events) this._events = {};

if (!this._events[type]) this._events[type] = [];

if (!(this._events[type] instanceof Array)) {

this._events[type] = [this._events[type]];

}

return this._events[type];

};

exports.Promise = removed('Promise has been removed. See http://groups.google.com/group/nodejs/msg/0c483b891c56fea2 for more information.');

process.Promise = exports.Promise;

});

var events = eventsModule.exports;

// nextTick()

var nextTickQueue = [];

process._tickCallback = function () {

var l = nextTickQueue.length;

while (l--) {

var cb = nextTickQueue.shift();

cb();

}

};

process.nextTick = function (callback) {

nextTickQueue.push(callback);

process._needTickCallback();

};

// Signal Handlers

function isSignal (event) {

return event.slice(0, 3) === 'SIG' && process.hasOwnProperty(event);

};

process.addListener("newListener", function (event) {

if (isSignal(event) && process.listeners(event).length === 0) {

var b = process.binding('signal_watcher');

var w = new b.SignalWatcher(process[event]);

w.addListener("signal", function () {

process.emit(event);

});

}

});

// Timers

function addTimerListener (callback) {

var timer = this;

// Special case the no param case to avoid the extra object creation.

if (arguments.length > 2) {

var args = Array.prototype.slice.call(arguments, 2);

timer.callback = function () { callback.apply(timer, args); };

} else {

timer.callback = callback;

}

global.setTimeout = function (callback, after) {

var timer = new process.Timer();

addTimerListener.apply(timer, arguments);

timer.start(after, 0);

return timer;

};

global.setInterval = function (callback, repeat) {

var timer = new process.Timer();

addTimerListener.apply(timer, arguments);

timer.start(repeat, repeat);

return timer;

};

global.clearTimeout = function (timer) {

if (timer instanceof process.Timer) {

timer.stop();

}

};

global.clearInterval = global.clearTimeout;

// Modules

var debugLevel = parseInt(process.env["NODE_DEBUG"]);

function debug (x) {

if (debugLevel > 0) {

process.binding('stdio').writeError(x + "\n");

}

var pathModule = createInternalModule("path", function (exports) {

exports.join = function () {

return exports.normalize(Array.prototype.join.call(arguments, "/"));

};

exports.normalizeArray = function (parts, keepBlanks) {

var directories = [], prev;

for (var i = 0, l = parts.length - 1; i <= l; i++) {

var directory = parts[i];

// if it's blank, but it's not the first thing, and not the last thing, skip it.

if (directory === "" && i !== 0 && i !== l && !keepBlanks) continue;

// if it's a dot, and there was some previous dir already, then skip it.

if (directory === "." && prev !== undefined) continue;

if (

directory === ".."

&& directories.length

&& prev !== ".."

&& prev !== "."

&& prev !== undefined

&& (prev !== "" || keepBlanks)

) {

directories.pop();

prev = directories.slice(-1)[0]

} else {

if (prev === ".") directories.pop();

directories.push(directory);

prev = directory;

}

return directories;

};

exports.normalize = function (path, keepBlanks) {

return exports.normalizeArray(path.split("/"), keepBlanks).join("/");

};

exports.dirname = function (path) {

return path.substr(0, path.lastIndexOf("/")) || ".";

};

exports.filename = function () {

throw new Error("path.filename is deprecated. Please use path.basename instead.");

};

exports.basename = function (path, ext) {

var f = path.substr(path.lastIndexOf("/") + 1);

if (ext && f.substr(-1 * ext.length) === ext) {

f = f.substr(0, f.length - ext.length);

}

return f;

};

exports.extname = function (path) {

var index = path.lastIndexOf('.');

return index < 0 ? '' : path.substring(index);

};

exports.exists = function (path, callback) {

requireNative('fs').stat(path, function (err, stats) {

if (callback) callback(err ? false : true);

});

};

});

var path = pathModule.exports;

function existsSync (path) {

try {

process.binding('fs').stat(path);

return true;

} catch (e) {

return false;

}

var modulePaths = [];

if (process.env["HOME"]) {

modulePaths.unshift(path.join(process.env["HOME"], ".node_libraries"));

}

if (process.env["NODE_PATH"]) {

modulePaths = process.env["NODE_PATH"].split(":").concat(modulePaths);

}

/* Sync unless callback given */

function findModulePath (id, dirs, callback) {

process.assert(dirs.constructor == Array);

if (/^https?:\/\//.exec(id)) {

if (callback) {

callback(id);

} else {

throw new Error("Sync http require not allowed.");

}

return;

}

if (/\.(js|node)$/.exec(id)) {

throw new Error("No longer accepting filename extension in module names");

}

if (dirs.length == 0) {

if (callback) {

callback();

} else {

return; // sync returns null

}

var dir = dirs[0];

var rest = dirs.slice(1, dirs.length);

if (id.charAt(0) == '/') {

dir = '';

rest = [];

}

var locations = [

path.join(dir, id + ".js"),

path.join(dir, id + ".node"),

path.join(dir, id, "index.js"),

path.join(dir, id, "index.node")

];

var ext;

var extensions = Object.keys(extensionCache);

for (var i = 0, l = extensions.length; i < l; i++) {

var ext = extensions[i];

locations.push(path.join(dir, id + ext));

locations.push(path.join(dir, id, 'index' + ext));

}

function searchLocations () {

var location = locations.shift();

if (!location) {

return findModulePath(id, rest, callback);

}

// if async

if (callback) {

path.exists(location, function (found) {

if (found) {

callback(location);

} else {

return searchLocations();

}

});

// if sync

} else {

if (existsSync(location)) {

return location;

} else {

return searchLocations();

}

return searchLocations();

}

// sync - no i/o performed

function resolveModulePath(request, parent) {

var id, paths;

if (request.charAt(0) == "." && (request.charAt(1) == "/" || request.charAt(1) == ".")) {

// Relative request

debug("RELATIVE: requested:" + request + " set ID to: "+id+" from "+parent.id);

var exts = ['js', 'node'], ext;

var extensions = Object.keys(extensionCache);

for (var i = 0, l = extensions.length; i < l; i++) {

var ext = extensions[i];

exts.push(ext.slice(1));

}

var parentIdPath = path.dirname(parent.id +

(path.basename(parent.filename).match(new RegExp('^index\\.(' + exts.join('|') + ')$')) ? "/" : ""));

id = path.join(parentIdPath, request);

paths = [path.dirname(parent.filename)];

} else {

id = request;

// debug("ABSOLUTE: id="+id);

paths = modulePaths;

}

return [id, paths];

}

function loadModule (request, parent, callback) {

var resolvedModule = resolveModulePath(request, parent),

id = resolvedModule[0],

paths = resolvedModule[1];

debug("loadModule REQUEST " + (request) + " parent: " + parent.id);

var cachedModule = internalModuleCache[id] || parent.moduleCache[id];

if (!cachedModule) {

// Try to compile from native modules

if (natives[id]) {

debug('load native module ' + id);

cachedModule = loadNative(id);

}

if (cachedModule) {

debug("found " + JSON.stringify(id) + " in cache");

if (callback) {

callback(null, cachedModule.exports);

} else {

return cachedModule.exports;

}

} else {

// Not in cache

debug("looking for " + JSON.stringify(id) + " in " + JSON.stringify(paths));

if (!callback) {

// sync

var filename = findModulePath(request, paths);

if (!filename) {

throw new Error("Cannot find module '" + request + "'");

} else {

var module = new Module(id, parent);

module.loadSync(filename);

return module.exports;

}

} else {

// async

findModulePath(request, paths, function (filename) {

if (!filename) {

var err = new Error("Cannot find module '" + request + "'");

callback(err);

} else {

var module = new Module(id, parent);

module.load(filename, callback);

}

});

}

};

// This function allows the user to register file extensions to custom

// Javascript 'compilers'. It accepts 2 arguments, where ext is a file

// extension as a string. E.g. '.coffee' for coffee-script files. compiler

// is the second argument, which is a function that gets called when the

// specified file extension is found. The compiler is passed a single

// argument, which is, the file contents, which need to be compiled.

// The function needs to return the compiled source, or an non-string

// variable that will get attached directly to the module exports. Example:

// require.registerExtension('.coffee', function(content) {

// return doCompileMagic(content);

// });

function registerExtension(ext, compiler) {

if ('string' !== typeof ext && false === /\.\w+$/.test(ext)) {

throw new Error('require.registerExtension: First argument not a valid extension string.');

}

if ('function' !== typeof compiler) {

throw new Error('require.registerExtension: Second argument not a valid compiler function.');

}

extensionCache[ext] = compiler;

}

Module.prototype.loadSync = function (filename) {

debug("loadSync " + JSON.stringify(filename) + " for module " + JSON.stringify(this.id));

process.assert(!this.loaded);

this.filename = filename;

if (filename.match(/\.node$/)) {

this._loadObjectSync(filename);

} else {

this._loadScriptSync(filename);

}

};

Module.prototype.load = function (filename, callback) {

debug("load " + JSON.stringify(filename) + " for module " + JSON.stringify(this.id));

process.assert(!this.loaded);

this.filename = filename;

if (filename.match(/\.node$/)) {

this._loadObject(filename, callback);

} else {

this._loadScript(filename, callback);

}

};

Module.prototype._loadObjectSync = function (filename) {

this.loaded = true;

process.dlopen(filename, this.exports);

};

Module.prototype._loadObject = function (filename, callback) {

var self = this;

// XXX Not yet supporting loading from HTTP. would need to download the

// file, store it to tmp then run dlopen on it.

self.loaded = true;

process.dlopen(filename, self.exports); // FIXME synchronus

if (callback) callback(null, self.exports);

};

function cat (id, callback) {

if (id.match(/^http:\/\//)) {

loadModule('http', process.mainModule, function (err, http) {

if (err) {

if (callback) callback(err);

} else {

http.cat(id, callback);

}

});

} else {

requireNative('fs').readFile(id, callback);

}

// Returns exception if any

Module.prototype._compile = function (content, filename) {

var self = this;

// remove shebang

content = content.replace(/^\#\!.*/, '');

// Compile content if needed

var ext = path.extname(filename);

if (extensionCache[ext]) {

content = extensionCache[ext](content);

}

function requireAsync (url, cb) {

loadModule(url, self, cb);

}

function require (path) {

return loadModule(path, self);

}

require.paths = modulePaths;

require.async = requireAsync;

require.main = process.mainModule;

require.registerExtension = registerExtension;

if ('string' === typeof content) {

// create wrapper function

var wrapper = "(function (exports, require, module, __filename, __dirname) { "

+ content

+ "\n});";

try {

var compiledWrapper = process.compile(wrapper, filename);

var dirName = path.dirname(filename);

if (filename === process.argv[1]) {

process.checkBreak();

}

compiledWrapper.apply(self.exports, [self.exports, require, self, filename, dirName]);

} catch (e) {

return e;

}

} else {

self.exports = content;

}

};

Module.prototype._loadScriptSync = function (filename) {

var content = requireNative('fs').readFileSync(filename);

var e = this._compile(content, filename);

if (e) {

throw e;

} else {

this.loaded = true;

}

};

Module.prototype._loadScript = function (filename, callback) {

var self = this;

cat(filename, function (err, content) {

debug('cat done');

if (err) {

if (callback) callback(err);

} else {

var e = self._compile(content, filename);

if (e) {

if (callback) callback(e);

} else {

self._waitChildrenLoad(function () {

self.loaded = true;

if (self.onload) self.onload();

if (callback) callback(null, self.exports);

});

}

});

};

Module.prototype._waitChildrenLoad = function (callback) {

var nloaded = 0;

var children = this.children;

for (var i = 0; i < children.length; i++) {

var child = children[i];

if (child.loaded) {

nloaded++;

} else {

child.onload = function () {

child.onload = null;

nloaded++;

if (children.length == nloaded && callback) callback();

};

}

if (children.length == nloaded && callback) callback();

};

var stdout;

process.__defineGetter__('stdout', function () {

if (stdout) return stdout;

var net = requireNative('net');

stdout = new net.Stream(process.binding('stdio').stdoutFD);

return stdout;

});

var stdin;

process.openStdin = function () {

if (stdin) return stdin;

var net = requireNative('net');

var fd = process.binding('stdio').openStdin();

stdin = new net.Stream(fd);

stdin.resume();

stdin.readable = true;

return stdin;

};

process.exit = function (code) {

process.emit("exit");

process.reallyExit(code);

};

var cwd = process.cwd();

// Make process.argv[0] and process.argv[1] into full paths.

if (process.argv[0].indexOf('/') > 0) {

process.argv[0] = path.join(cwd, process.argv[0]);

}

if (process.argv[1].charAt(0) != "/" && !(/^http:\/\//).exec(process.argv[1])) {

process.argv[1] = path.join(cwd, process.argv[1]);

}

// Load the main module--the command line argument.

process.mainModule = new Module(".");

process.mainModule.load(process.argv[1], function (err) {

if (err) throw err;

});

// All our arguments are loaded. We've evaluated all of the scripts. We

// might even have created TCP servers. Now we enter the main eventloop. If

// there are no watchers on the loop (except for the ones that were

// ev_unref'd) then this function exits. As long as there are active

// watchers, it blocks.

process.loop();

process.emit("exit");

});

node/src/node.js at master · waveto/node · GitHub

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