Add TypeScript types

Author: rpetrich

index.d.ts

@@ -0,0 +1,12 @@
+import { RawSourceMap } from "source-map";
+
+declare module "concat-with-sourcemaps" {
+
+	export default class Concat {
+		constructor(generateSourceMap: boolean, fileName: string, separator?: string);
+		add(filePath: string | null, content: string | Buffer, sourceMap?: string | RawSourceMap): void;
+		readonly content: Buffer;
+		readonly sourceMap: string | undefined;
+	}
+
+}

index.js

@@ -129,5 +129,6 @@ function bufferFrom(content) {
   }
 }
 Concat.bufferFrom = bufferFrom;
+Concat.default = Concat;
 
 module.exports = Concat;

package.json

@@ -5,6 +5,7 @@
   "homepage": "http://github.com/floridoo/concat-with-sourcemaps",
   "repository": "git://github.com/floridoo/concat-with-sourcemaps.git",
   "main": "index.js",
+  "types": "index.d.ts",
   "scripts": {
     "test": "jshint *.js test/*.js && faucet test/*.js",
     "tap": "tape test/*.js",