added defs for some (stream) utils

through2/through2-tests.ts

@@ -0,0 +1,44 @@
+/// <reference path="./through2.d.ts" />
+/// <reference path="../node/node.d.ts" />
+
+import through2 = require('through2');
+
+var rws: NodeJS.ReadWriteStream;
+
+rws = through2({
+	objectMode: true,
+	allowHalfOpen: true
+}, function (entry: any, enc: string, callback: () => void) {
+	this.push('foo');
+	callback();
+}, () => {
+
+});
+
+rws = through2(function (entry: any, enc: string, callback: () => void) {
+	this.push('foo');
+	callback();
+}, () => {
+
+});
+
+rws = through2(function (entry: any, enc: string, callback: () => void) {
+	this.push('foo');
+	callback();
+});
+
+rws = through2();
+
+// obj
+rws = through2.obj(function (entry: any, enc: string, callback: () => void) {
+	this.push('foo');
+	callback();
+}, () => {
+
+});
+
+rws = through2.obj(function (entry: any, enc: string, callback: () => void) {
+	this.push('foo');
+	callback();
+});
+

through2/through2.d.ts

@@ -0,0 +1,23 @@
+// Type definitions for through2 v 0.4.2
+// Project: https://github.com/rvagg/through2
+// Definitions by: Bart van der Schoor <https://github.com/Bartvds>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../node/node.d.ts" />
+
+declare module 'through2' {
+	import stream = require('stream');
+
+	var mod: mod.Through2;
+
+	module mod {
+		interface Through2 {
+			(transform?: (entry: any, enc: string, callback: () => void) => void, flush?: () => void): NodeJS.ReadWriteStream;
+			(opts: stream.DuplexOptions, transform?: (entry: any, enc: string, callback: () => void) => void, flush?: () => void): NodeJS.ReadWriteStream;
+			obj(transform: (entry: any, enc: string, callback: () => void) => void, flush?: () => void): NodeJS.ReadWriteStream;
+			push(data: any): void;
+		}
+	}
+	export = mod;
+}
+