Working version.

Author: RReverser

.editorconfig

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+# http://editorconfig.org
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.js]
+indent_style = tab
+indent_size = 4

.gitattributes

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+* text=auto

.gitignore

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+/node_modules/
+npm-debug.log

.jshintrc

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+{
+  "bitwise": true,
+  "camelcase": true,
+  "curly": true,
+  "eqeqeq": true,
+  "forin": false,
+  "freeze": true,
+  "immed": true,
+  "indent": 4,
+  "latedef": true,
+  "newcap": true,
+  "noarg": true,
+  "noempty": false,
+  "nonew": true,
+  "quotmark": true,
+  "undef": true,
+  "unused": true,
+  "strict": true,
+  "trailing": true,
+  "maxparams": 4,
+
+  "eqnull": true,
+  "funcscope": true,
+  "globalstrict": true,
+  "lastsemic": true,
+  "smarttabs": true,
+
+  "browser": false,
+  "devel": true,
+  "node": true
+}

.travis.yml

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+language: node_js
+node_js:
+  - '0.10'

LICENSE

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+Copyright 2014 Ingvar Stepanyan, aster
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# aster-parse-js
+[![NPM version][npm-image]][npm-url]
+[![Build Status][travis-image]][travis-url]
+
+> Parse js with aster.
+
+## Usage
+
+This is internal module and should be used as part of [aster-parse](https://npmjs.org/package/aster-parse) or [aster-src](https://npmjs.org/package/aster-src).
+
+## License
+
+[MIT License](http://en.wikipedia.org/wiki/MIT_License)
+
+[npm-url]: https://npmjs.org/package/aster-parse-js
+[npm-image]: https://badge.fury.io/js/aster-parse-js.png
+
+[travis-url]: http://travis-ci.org/asterjs/aster-parse-js
+[travis-image]: https://secure.travis-ci.org/asterjs/aster-parse-js.png?branch=master

index.js

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+'use strict';
+
+var Rx = require('rx');
+var parse = require('esprima').parse;
+
+module.exports = function (options) {
+	options = options || {};
+
+	var loc = options.loc !== false;
+	var attachComment = !!options.comments;
+
+	return function (files) {
+		return files.map(function (file) {
+			return parse(file.contents, {loc: loc, source: file.path, attachComment: attachComment});
+		});
+	};
+};

package.json

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+{
+  "name": "aster-parse-js",
+  "version": "0.0.1",
+  "description": "Parse js with aster.",
+  "author": "Ingvar Stepanyan <[email protected]> (https://github.com/RReverser)",
+  "repository": "asterjs/aster-parse-js",
+  "license": "MIT",
+  "keywords": [
+    "aster-plugin",
+    "ast",
+    "javascript",
+    "transform",
+    "modify"
+  ],
+  "main": "index.js",
+  "scripts": {
+    "test": "mocha"
+  },
+  "dependencies": {
+    "esprima": "^1.2.2",
+    "rx": "^2.2.24"
+  },
+  "devDependencies": {
+    "mocha": "*"
+  }
+}

test/mocha.opts

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+--reporter spec

test/test.js

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+/* global describe, it */
+
+'use strict';
+
+var assert = require('assert'),
+	Rx = require('rx'),
+	parseJs = require('..'),
+	parse = require('esprima').parse;
+
+it('without comments', function (done) {
+	var file = {path: 'file.js', contents: 'a = 1;'},
+		input = [file],
+		expected = [parse(file.contents, {loc: true, source: file.path})];
+
+	// simulating file sequence and applying transformation
+	parseJs()(Rx.Observable.fromArray(input))
+	// checking against array of expected results iteratively
+	.zip(expected, assert.deepEqual)
+	// subscribing to check results
+	.subscribe(function () {}, done, done);
+});
+
+it('with comments', function (done) {
+	var file = {path: 'file.js', contents: '/* hello, world! */a = 1;'},
+		input = [file],
+		expected = [parse(file.contents, {loc: true, source: file.path, attachComment: true})];
+
+	// simulating file sequence and applying transformation
+	parseJs({comments: true})(Rx.Observable.fromArray(input))
+	// checking against array of expected results iteratively
+	.zip(expected, assert.deepEqual)
+	// subscribing to check results
+	.subscribe(function () {}, done, done);
+});
+
+it('no location tracking', function (done) {
+	var file = {path: 'file.js', contents: 'a = 1;'},
+		input = [file],
+		expected = [parse(file.contents)];
+
+	// simulating file sequence and applying transformation
+	parseJs({loc: false})(Rx.Observable.fromArray(input))
+	// checking against array of expected results iteratively
+	.zip(expected, assert.deepEqual)
+	// subscribing to check results
+	.subscribe(function () {}, done, done);
+});