v2.7.3

fix verison number in changelog
remove unused variables
2015-01-07 22:55:09 +11:00 · 2015-01-07 22:53:02 +11:00 · 2015-01-07 22:50:24 +11:00 · 2015-01-07 22:49:21 +11:00 · 2015-01-07 22:47:37 +11:00 · 2015-01-07 22:43:05 +11:00
128 changed files with 673 additions and 1982 deletions
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "vendor/regenerator"]
 	path = vendor/regenerator
 	url = https://github.com/facebook/regenerator
+[submodule "vendor/test262"]
+	path = vendor/test262
+	url = https://github.com/tc39/test262
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,25 +7,71 @@
 > - [Breaking Change]
 > - [Documentation]
 > - [Internal]
-> - [Misc]
+> - [Polish]

 _Note: Gaps between patch versions are faulty/broken releases._

+## 2.7.3
+
+ * **Polish**
+  * Indent and add newlines to `React.createElement` calls in `react` transformer.
+  * Remove `Object.assign` calls and replace it with an `extends` helper.
+
+## 2.7.1
+
+ * **New Feature**
+  * Expose `version` on browser and node API.
+ * **Internal**
+  * Upgrade `core-js` to 0.4.1
+
+## 2.7.0
+
+ * **Spec Compliancy**
+  * Disallow reassignments of imports.
+ * **New Feature**
+  * `reactCompat` option to enable pre-v0.12 react components.
+
+## 2.6.3
+
+ * **Bug Fix**
+  * Fix 2.6.0 regression caused by faulty export default from a source handling.
+
+## 2.6.2
+
+ * **Bug Fix**
+  * Fix rest parameter keys when on functions with params.
+
+## 2.6.1
+
+ * **Bug Fix**
+  * Fix rest parameter arguments key.
+
 ## 2.6.0

- * [Internal] Fix incorrect AST node `identifier("this")`.
- * [Spec Compliancy] Add `interopRequireWildcard` around wildcard imports and exports to handle non-object exports.
- * [Internal] Upgrade `acorn-6to5`.
- * [New Feature] Basic destructuring defaults
- * [New Feature] Add `.es` to list of supported extensions.
- * [New Feature] Add optional `typeofSymbol` transformer.
- * [Bug Fix] Better handling of number literal property keys.
- * [Bug Fix] [Internal] Better `toIdentifier` method that handles reserved words.
- * [Internal] Upgrade to `core-js` 4.0.0.
- * [Internal] Upgrade to `regenerator` 0.8.3.
- * [Bug Fix] Handle `NewExpression` paren insertion edegcases better.
- * [Spec Compliancy] Class inheritance now has a `function` or `null` type check.
- * [Misc] Move `"use strict";` to inside module bodies instead of at the top of the file.
+ * **Bug Fix**
+  * Better handling of number literal property keys.
+  * Handle `NewExpression` paren insertion edegcases better.
+ * **Internal**
+  * Fix incorrect AST node `identifier("this")`.
+  * Better `toIdentifier` method that handles reserved words.
+  * Upgrade `acorn-6to5`.
+    * Fix exponentiation operator precedence.
+    * Fix line terminators after async contextual keywords.
+    * Add semicolons as class elements inside of a class body.
+  * Upgrade to `core-js` 4.0.0.
+  * Upgrade to `regenerator` 0.8.3.
+    * Fix non-loop labeled statements.
+ * **New Feature**
+  * Basic destructuring defaults
+  * Add `.es` to list of supported extensions.
+  * Add optional `typeofSymbol` transformer.
+  * Use a `for` loop for rest parameters instead of `Array.prototype.slice`.
+ * **Polish**
+  * Move `"use strict";` to inside module bodies instead of at the top of the file.
+  * Better handling of dynamic imports.
+ * **Spec Compliancy**
+  * Class inheritance now has a `function` or `null` type check.
+  * Add `interopRequireWildcard` around wildcard imports and exports to handle non-object exports.

 ## 2.5.0

--- a/25
+++ b/25
@@ -6,7 +6,7 @@ MOCHA_CMD = node_modules/mocha/bin/_mocha

 export NODE_ENV = test

-.PHONY: clean test test-cov test-clean lint test-travis test-spec test-browser publish bench build bootstrap
+.PHONY: clean test test-cov test-clean lint test-travis test-simple test-all test-browser publish build bootstrap

 build:
 	mkdir -p dist
@@ -27,12 +27,8 @@ build:
 clean:
 	rm -rf coverage templates.json test/tmp dist

-bench:
-	npm install es6-transpiler traceur esnext es6now jstransform
-	node node_modules/matcha/bin/_matcha
-
 lint:
-	$(JSHINT_CMD) --reporter node_modules/jshint-stylish/stylish.js lib bin benchmark/index.js
+	$(JSHINT_CMD) --reporter node_modules/jshint-stylish/stylish.js lib bin

 test-clean:
 	rm -rf test/tmp
@@ -41,14 +37,23 @@ test: lint
 	$(MOCHA_CMD)
 	make test-clean

+test-simple:
+	# excludes test262
+	export SIMPLE_6TO5_TESTS=1
+	make test
+
+test-all:
+	# includes traceur, esnext, regenerator
+	export ALL_6TO5_TESTS=1
+	make test
+
 test-cov:
+	export SIMPLE_6TO5_TESTS=1
 	rm -rf coverage
 	node $(ISTANBUL_CMD) $(MOCHA_CMD) --

-test-spec:
-	node $(ISTANBUL_CMD) $(MOCHA_CMD) -- --reporter spec
-
-test-travis: test-spec
+test-travis: bootstrap
+	node $(ISTANBUL_CMD) $(MOCHA_CMD) --
 	if test -n "$$CODECLIMATE_REPO_TOKEN"; then codeclimate < coverage/lcov.info; fi

 test-browser:
--- a/NOTES.md
+++ b/NOTES.md
@@ -1,3 +1,8 @@
 # Notes

 * Wildcard exports/imports wont normalise if `export default` is a non-object.
+
+## 3.0.0 breaking changes
+
+ * Remove `allowImportExportEverywhere` option from acorn.
+ * Remove this shorthand from playground.
--- a/benchmark/fixtures/all.js
+++ b/benchmark/fixtures/all.js
@@ -1,99 +0,0 @@
-var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
-var obj = {};
-var foo = "foo";
-var bar = "bar";
-
-// constants
-const MULTIPLIER = 5;
-
-// classes
-class Foo {
-  constructor() {
-    this.foo = "bar";
-  }
-}
-
-class Bar extends Foo {
-  constructor() {
-    super();
-  }
-
-  // default parameters
-  go(foo = "bar", bar = "foo") {
-
-  }
-
-  // not supported by jstransform
-  //get foo() {
-  //  return this._foo;
-  //}
-  //set foo(val) {
-  //  this._foo = val + " foo!";
-  //}
-}
-
-// arrow functions
-arr.map(x => x * x);
-
-// block binding
-for (let key in arr) {
-  let val = arr[key];
-  console.log(key, val);
-}
-
-// computed property names
-obj = {
-  ["foo" + bar]: "foobar"
-};
-
-// destructuring
-var [a, [b], c, d] = ["hello", [", ", "junk"], ["world"]];
-console.log(a + b + c);
-
-// array comprehension
-// [for (i of [1, 2, 3]) i * i]; // not supported by es6now
-
-// for-of
-for (var i of [1, 2, 3]) {
-  console.log(i * i);
-}
-
-// property method assignment
-obj = {
-  foo() {
-    return "foobar";
-  },
-
-  get bar() {
-    return this._bar;
-  },
-
-  set bar(val) {
-    this._bar = val;
-  }
-};
-
-// property name shorthand
-function f(x, y) {
-  return { x, y };
-}
-
-// rest parameters
-function printList(name, ...items) {
-  console.log("list %s has the following items", name);
-  items.forEach(function (item) {
-    console.log(item);
-  });
-}
-
-// spread
-function add(x, y) {
-  return x + y;
-}
-var numbers = [5, 10];
-add(...numbers);
-
-// template literals
-var x = 5;
-var y = 10;
-console.log(`${x} + ${y} = ${x + y}`);
--- a/benchmark/index.js
+++ b/benchmark/index.js
@@ -1,168 +0,0 @@
-Error.stackTraceLimit = Infinity;
-
-var jsTrans = require("jstransform");
-var traceur = require("traceur");
-//var es6tr   = require("es6-transpiler");
-var es6now  = require("es6now");
-//var esnext  = require("esnext");
-var to5     = require("../lib/6to5");
-
-//var uglify  = require("uglify-js");
-var matcha  = require("matcha");
-var path    = require("path");
-var fs      = require("fs");
-var _       = require("lodash");
-
-var readResolve = function (filename) {
-  try {
-    filename = require.resolve(filename);
-  } catch (err) {
-    return null;
-  }
-  return fs.readFileSync(filename, "utf8");
-};
-
-var getVersion = function (name) {
-  return require(name + "/package.json").version;
-};
-
-var jsTransVisitors = [];
-
-_.each([
-  "arrow-function-visitors", "class-visitors", "destructuring-visitors",
-  "object-concise-method-visitors", "object-short-notation-visitors",
-  "rest-param-visitors", "template-visitors"
-], function (name) {
-  var mod = require("jstransform/visitors/es6-" + name);
-  jsTransVisitors = jsTransVisitors.concat(mod.visitorList);
-});
-
-
-var compilers = {
-  "6to5": {
-    version: getVersion(".."),
-    compile: function (code, filename) {
-      return to5.transform(code, { filename: filename }).code;
-    }
-  },
-
-  traceur: {
-    runtime: readResolve("traceur/bin/traceur-runtime.js"),
-    compile: function (code) {
-      return traceur.compile(code, {
-        modules: "commonjs",
-        experimental: true
-      });
-    }
-  },
-
-  /*esnext: {
-    runtime: readResolve("esnext/node_modules/regenerator/runtime.js") || readResolve("regenerator/runtime.js"),
-    compile: function (code) {
-      return esnext.compile(code).code;
-    }
-  },*/
-
-  es6now: {
-    runtime: readResolve("es6now/runtime/ES6.js"),
-    compile: function (code) {
-      return es6now.translate(code);
-    }
-  },
-
-  /*"es6-transpiler": {
-    compile: function (code) {
-      var result = es6tr.run({ src: code });
-      if (result.errors.length) throw new Error(result.join("; "));
-      return result.src;
-    }
-  },*/
-
-  jstransform: {
-    compile: function (code) {
-      return jsTrans.transform(jsTransVisitors, code).code;
-    }
-  }
-};
-
-// versions
-
-//var uglifyTitle = "uglify v" + getVersion("uglify-js");
-
-_.each(compilers, function (compiler, name) {
-  compiler.title = name + " v" + (compiler.version || getVersion(name));
-});
-
-//
-
-var sizeBenchmark = function (code, loc, name, compiler) {
-  var log = function (output, title) {
-    title = [compiler.title].concat(title || []).join(" + ");
-
-    var text;
-    var color;
-    if (output.stack) {
-      text = "error";
-      color = "red";
-    } else {
-      var kilo  = (output.length / 1024).toFixed(2);
-      text = kilo + "KB";
-      color = "cyan";
-    }
-
-    text = matcha.utils.color(matcha.utils.padBefore(text, 22), color);
-
-    console.log(text, matcha.utils.color("» " + title, "gray"));
-
-    if (output.stack) {
-      console.error(output.stack);
-    }
-  };
-
-  var go = function (getOutput, title) {
-    var code;
-    try {
-      code = getOutput();
-    } catch (err) {
-      log(err, title);
-      return;
-    }
-
-    log(code, title);
-  };
-
-  var output;
-  go(function () {
-    return output = compiler.compile(code, loc);
-  });
-  if (!output) return;
-
-  //go(function () {
-  //  return uglify.minify(output, { fromString: true }).code;
-  //}, uglifyTitle);
-};
-
-//
-
-_.each(fs.readdirSync(__dirname + "/fixtures"), function (name) {
-  var alias = path.basename(name, path.extname(name));
-
-  suite(alias, function () {
-    set("delay", 0);
-
-    var loc  = __dirname + "/fixtures/" + name;
-    var code = fs.readFileSync(loc, "utf8");
-
-    before(function () {
-      _.each(compilers, function (compiler, name) {
-        sizeBenchmark(code, loc, name, compiler);
-      });
-    });
-
-    _.each(compilers, function (compiler) {
-      bench(compiler.title, function () {
-        compiler.compile(code, loc);
-      });
-    });
-  });
-});
--- a/doc/browser.md
+++ b/doc/browser.md
@@ -1,65 +0,0 @@
-# Browser
-
-A browser version of 6to5 is available from `browser.js` inside the 6to5
-directory in an npm release.
-
-## Scripts
-
-While it's not recommended for serious use, when the browser version is included
-all scripts with the type `text/ecmascript-6` and `text/6to5` are automatically
-compiled and ran.
-
-For example:
-
-```html
-<script src="node_modules/6to5/browser.js"></script>
-<script type="text/6to5">
-class Test {
-  test() {
-    return "test";
-  }
-}
-
-var test = new Test;
-test.test();
-</script>
-```
-
-## Build
-
-You can build a browser version of the compiler by running the following in the
-6to5 directory:
-
-```sh
-$ make build
-```
-
-This will output the files `dist/6to5.js` and `dist/6to5.min.js`.
-
-## Test
-
-To test 6to5 in your browser run:
-
-```sh
-$ make test-browser
-```
-
-And open `test/browser.html` in your browser if it doesn't open automatically.
-
-## API
-
-### to5.transform(code, [opts])
-
-See [options](usage.md#options) for additional documentation.
-
-```javascript
-to5.transform("class Test {}").code;
-```
-
-### to5.run(code, [opts])
-
-See [options](usage.md#options) for additional documentation.
-
-```javascript
-to5.run("class Test {}");
-```
--- a/doc/caveats.md
+++ b/doc/caveats.md
@@ -1,62 +0,0 @@
-# Caveats
-
-In order for certain features to work they require certain polyfills. You can
-satisfy **all** 6to5 feature requirements by using the included
-[polyfill](polyfill.md).
-
-You may alternatively selectively include what you need:
-
-| Feature                     | Requirements                                                                                                           |
-| --------------------------- | ---------------------------------------------------------------------------------------------------------------------- |
-| Abstract References         | [experimental](experimental.md), `Symbol`                                                                              |
-| Array destructuring         | `Array.from`                                                                                                           |
-| Async functions, Generators | [experimental](experimental.md), [regenerator runtime](https://github.com/facebook/regenerator/blob/master/runtime.js) |
-| Comprehensions              | [experimental](experimental.md), `Array.from`                                                                          |
-| For Of                      | `Symbol`, `prototype[Symbol.iterator]`                                                                                 |
-| Modules                     | `Object.assign`*                                                                                                       |
-| Object spread/rest          | [experimental](experimental.md), `Object.assign`                                                                       |
-| Spread                      | `Array.from`                                                                                                           |
-
-*Only required for exporting a non-function `default` with additional `export`s.
-
-## ES5
-
-Since 6to5 assumes that your code will be ran in an ES5 environment it uses ES5
-functions. So if you're using an environment that has limited or no support for
-ES5 such as lower versions of IE then using the
-[es5-shim](https://github.com/es-shims/es5-shim) along with the
-[6to5 polyfill](polyfill.md) will add support for these methods.
-
-## Internet Explorer
-
-### Classes (10 and below)
-
-If you're inheriting from a class then static properties are inherited from it
-via [\_\_proto\_\_](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/proto),
-this is widely supported but you may run into problems with much older browsers.
-
-**NOTE:** `__proto__` is not supported in IE <= 10 so static properties
-**will not** be inherited. A possible workaround is to use `super();`:
-
-```javascript
-class Foo {
-  static foo() {
-
-  }
-}
-
-class Bar extends Foo {
-  static foo() {
-    super();
-  }
-}
-```
-
-## Getters/setters (8 and below)
-
-In IE8 `Object.defineProperty` can only be used on DOM objects. This is
-unfortunate as it's required to set getters and setters. Due to this if
-you plan on supporting IE8 or below then the user of getters and setters
-isn't recommended.
-
-**Reference**: [MDN](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty#Internet_Explorer_8_specific_notes).
--- a/doc/differences.md
+++ b/doc/differences.md
@@ -1,137 +0,0 @@
-# Differences
-
-There are three main points that separate 6to5 from all other transpilers.
-
-### Readable code
-
-The fundamental concept behind 6to5 is that the generated code must be close as
-possible to the original, retaining all the same formatting and readability.
-
-Many other transpilers are just concerned with making the code work while 6to5
-is concerned with making sure it works **and** is readable at the same time.
-
-For example, given the following array comprehension:
-
-```javascript
-var seattlers = [for (c of customers) if (c.city == "Seattle") { name: c.name, age: c.age }];
-```
-
-is generated to the following with 6to5:
-
-```javascript
-var seattlers = Array.from(customers).filter(function (c) {
-  return c.city == "Seattle";
-}).map(function (c) {
-  return {
-    name: c.name,
-    age: c.age
-  };
-});
-```
-
-The following is what Traceur generates:
-
-```javascript
-var seattlers = (function() {
-  var c;
-  var $__20 = 0,
-      $__21 = [];
-  for (var $__22 = customers[$traceurRuntime.toProperty(Symbol.iterator)](),
-      $__23; !($__23 = $__22.next()).done; ) {
-    c = $__23.value;
-    if (c.city == "Seattle")
-      $traceurRuntime.setProperty($__21, $__20++, {
-        name: c.name,
-        age: c.age
-      });
-  }
-  return $__21;
-}());
-```
-
-As you can tell, it's not very pretty. Instead of mapping directly to a
-runtime, like other transpilers, 6to5 maps directly to the equivalent ES5.
-
-Sometimes there are little inline functions that 6to5 needs. These are
-placed at the top of your file much like coffee-script does. If these
-bother you then you can use the [optional runtime](optional-runtime.md).
-We promise that these inline functions will never be significant and will
-always be used as little as possible.
-
-### Static analysis
-
-6to5 uses a lot of static analysis to simplify code as much as possible.
-Not many other transpilers do this, and those that do don't do it nearly
-as much as 6to5. This process is pretty intensive but it leads to higher
-quality code.
-
-### Spec compliancy
-
-6to5 prides itself on
-[spec compliancy](https://kangax.github.io/compat-table/es6/). We have
-excellent support for edgecases, something that many other transpilers
-suffer from, including Traceur. When you use 6to5 you can be confident
-that when you turn it off and use your code in a full ES6 environment
-**it'll just work**.
-
-## Comparison to other transpilers
-
-### Features
-
-|                              | 6to5 | Traceur | es6-transpiler | es6now | jstransform |
-| ---------------------------- | ---- | ------- | -------------- | ------ | ----------- |
-| Source maps                  | ✓    | ✓       | ✓              |        | ✓           |
-| No compiler global pollution | ✓    |         | ✓              |        | ✓           |
-| Optional runtime             | ✓    |         | ✓              |        | ✓           |
-| Browser compiler             | ✓    | ✓       |                |        |             |
-
-### Language Support
-
-|                              | 6to5 | Traceur | es6-transpiler | es6now | jstransform |
-| ---------------------------- | ---- | ------- | -------------- | ------ | ----------- |
-| Abstract references          | ✓    |         |                |        |             |
-| Array comprehension          | ✓    | ✓       | ✓              |        |             |
-| Arrow functions              | ✓    | ✓       | ✓              | ✓      | ✓           |
-| Async functions              | ✓    | ✓       |                |        |             |
-| Async generator functions    | ✓    | ✓       |                |        |             |
-| Classes                      | ✓    | ✓       | ✓              | ✓      | ✓           |
-| Computed property names      | ✓    | ✓       | ✓              | ✓      |             |
-| Constants                    | ✓    | ✓       | ✓              |        |             |
-| Default parameters           | ✓    | ✓       | ✓              | ✓      |             |
-| Destructuring                | ✓    | ✓       | ✓              | ✓      | ✓           |
-| Exponentiation operator      | ✓    | ✓       |                |        |             |
-| Flow types                   | ✓    |         |                |        | ✓           |
-| For-of                       | ✓    | ✓       | ✓              | ✓      |             |
-| Generators                   | ✓    | ✓       |                |        |             |
-| Generator comprehension      | ✓    | ✓       |                |        |             |
-| JSX                          | ✓    |         |                |        |             |
-| Let scoping                  | ✓    | ✓       | ✓              |        |             |
-| Modules                      | ✓    | ✓       |                | ✓      |             |
-| Object rest/spread           | ✓    |         |                |        | ✓           |
-| Property method assignment   | ✓    | ✓       | ✓              | ✓      | ✓           |
-| Property name shorthand      | ✓    | ✓       | ✓              | ✓      | ✓           |
-| Rest parameters              | ✓    | ✓       | ✓              | ✓      | ✓           |
-| React                        | ✓    |         |                |        |             |
-| Spread                       | ✓    | ✓       | ✓              | ✓      |             |
-| Template literals            | ✓    | ✓       | ✓              | ✓      | ✓           |
-| Unicode regex                | ✓    | ✓       | ✓              |        |             |
-
-### [Traceur](https://github.com/google/traceur-compiler)
-
-Traceur requires quite a bulky runtime (~75KB) and produces quite verbose code.
-While this can be trimmed down by selectively building the runtime, it's an
-unnecessary step when a large runtime can be eliminated entirely.
-
-### [es6now](https://github.com/zenparsing/es6now)
-
-es6now doesn't output sourcemaps. This is cited as a positive as line-to-line
-mapping is the goal. This however obviously doesn't retain column mapping
-resulting in the output code not being very pleasant.
-
-### [es6-transpiler](https://github.com/termi/es6-transpiler)
-
-The es6-transpiler compiler requires shims to operate which pollutes the global
-scope resulting in possible collisions.
-
-es6-transpiler maps line-by-line, just like es6now, this results in the same
-issues such as lack of column information and unpleasant code output.
--- a/doc/experimental.md
+++ b/doc/experimental.md
@@ -1,8 +0,0 @@
-## Experimental
-
-6to5 also has experimental support for ES7 proposals. You can enable this with
-the `experimental: true` option when using the [Node API](#node) or
-`--experimental` when using the [CLI](#cli).
-
-**WARNING:** These proposals are subject to change so use with
-**extreme caution**.
--- a/doc/features.md
+++ b/doc/features.md
@@ -1,283 +0,0 @@
-# Features
-
-## Abstract references ([experimental](experimental.md)) ([spec](https://github.com/zenparsing/es-abstract-refs))
-
-```javascript
-foo::bar;
-foo::bar = baz;
-delete foo::bar;
-```
-
-## Array comprehensions ([experimental](experimental.md))
-
-```javascript
-var results = [for (c of customers) if (c.city == "Seattle") { name: c.name, age: c.age }]
-```
-
-## Arrow functions
-
-```javascript
-// Expression bodies
-var odds = evens.map(v => v + 1);
-var nums = evens.map((v, i) => v + i);
-
-// Statement bodies
-nums.forEach(v => {
-  if (v % 5 === 0)
-    fives.push(v);
-});
-
-// Lexical this
-var bob = {
-  _name: "Bob",
-  _friends: [],
-  printFriends() {
-    this._friends.forEach(f => {
-      console.log(this._name + " knows " + f);
-    });
-  }
-};
-```
-
-## Async functions ([experimental](experimental.md)) ([spec](https://github.com/lukehoban/ecmascript-asyncawait))
-
-```javascript
-async function chainAnimationsAsync(elem, animations) {
-  for (var anim of animations) {
-    await anim(elem);
-  }
-}
-```
-
-## Async generator functions ([experimental](experimental.md)) ([spec](https://github.com/jhusain/asyncgenerator))
-
-```javascript
-
-```
-
-## Classes
-
-```javascript
-class SkinnedMesh extends THREE.Mesh {
-  constructor(geometry, materials) {
-    super(geometry, materials);
-
-    this.idMatrix = SkinnedMesh.defaultMatrix();
-    this.bones = [];
-    this.boneMatrices = [];
-    //...
-  }
-
-  update(camera) {
-    //...
-    super.update();
-  }
-
-  static defaultMatrix() {
-    return new THREE.Matrix4();
-  }
-}
-```
-
-## Computed property names
-
-```javascript
-var foo = "foo";
-var bar = "bar";
-var obj = {
-  ["foo" + bar]: "heh",
-  ["bar" + foo]: "noo",
-  foo: "foo",
-  bar: "bar"
-};
-```
-
-## Constants
-
-```javascript
-const MULTIPLIER = 5;
-console.log(2 * MULTIPLIER);
-
-MULTIPLIER = 6; // error
-var MULTIPLIER; // error
-```
-
-## Default parameters
-
-```javascript
-function f(x, y = 12) {
-  // y is 12 if not passed (or passed as undefined)
-  return x + y;
-}
-f(3) == 15
-```
-
-## Destructuring
-
-```javascript
-// list matching
-var [a, , b] = [1,2,3];
-
-// object matching
-var { op: a, lhs: { op: b }, rhs: c } = getASTNode();
-
-// object matching shorthand
-// binds `op`, `lhs` and `rhs` in scope
-var { op, lhs, rhs } = getASTNode();
-
-// Can be used in parameter position
-function g({ name: x }) {
-  console.log(x);
-}
-g({ name: 5 });
-
-// Fail-soft destructuring
-var [a] = [];
-a === undefined;
-```
-
-## Exponentiation operator ([experimental](experimental.md)) ([spec](https://github.com/rwaldron/exponentiation-operator))
-
-```javascript
-var a = 2;
-a **= 2;
-
-var squared = 2 ** 2;
-```
-
-## For-of
-
-```javascript
-for (var i of [1, 2, 3]) {
-  console.log(i * i);
-}
-```
-
-## Generators
-
-```javascript
-function* fibonacci() {
-  var pre = 0, cur = 1;
-  for (;;) {
-    var temp = pre;
-    pre = cur;
-    cur += temp;
-    yield cur;
-  }
-}
-
-for (var n of fibonacci()) {
-  // truncate the sequence at 1000
-  if (n > 1000) break;
-  console.log(n);
-}
-```
-
-## Generator comprehensions ([experimental](experimental.md))
-
-```javascript
-var nums = [1, 2, 3, 4, 5, 6];
-var multiples = (for (i of nums) if (i % 2) i * i);
-assert.equal(multiples.next().value, 1);
-assert.equal(multiples.next().value, 9);
-assert.equal(multiples.next().value, 25);
-```
-
-## Let scoping
-
-```javascript
-for (let i in arr) {
-  let v = arr[i];
-}
-```
-
-## Modules
-
-```javascript
-import "foo";
-import foo from "foo";
-import * as foo from "foo";
-import {bar} from "foo";
-import {foo as bar} from "foo";
-
-export { test };
-export var test = 5;
-export function test() {}
-
-export default test;
-```
-
-## Numeric literals
-
-```javascript
-0b111110111 === 503; // true
-0o767 === 503; // true
-```
-
-## Object spread/rest ([experimental](experimental.md)) ([spec](https://github.com/sebmarkbage/ecmascript-rest-spread))
-
-```javascript
-var n = { x, y, ...z };
-var { x, y, ...z } = { x: 1, y: 2, a: 3, b: 4 };
-```
-
-## Property method assignment
-
-```javascript
-var obj = {
-  foo() {
-    return "foobar";
-  },
-
-  get bar() {
-    return this._bar;
-  },
-
-  set bar(val) {
-    this._bar = val;
-  }
-};
-```
-
-## Property name shorthand
-
-```javascript
-function f(x, y) {
-  return { x, y };
-}
-```
-
-## Rest parameters
-
-```javascript
-function f(x, ...y) {
-  // y is an Array
-  return x * y.length;
-}
-f(3, "hello", true) == 6
-```
-
-## Spread
-
-```javascript
-function f(x, y, z) {
-  return x + y + z;
-}
-// Pass each elem of array as argument
-f(...[1,2,3]) == 6
-```
-
-## Template literals
-
-```javascript
-var x = 5;
-var y = 10;
-console.log(`${x} + ${y} = ${x + y}`); // "5 + 10 = 15"
-```
-## Unicode regex
-
-```javascript
-var string = 'foo💩bar';
-var match = string.match(/foo(.)bar/u);
-console.log(match[1]);
-```
--- a/doc/index.md
+++ b/doc/index.md
@@ -1,62 +1 @@
-**6to5** turns ES6+ code into vanilla ES5, so you can use next generation features **today.**
-
- - **Readable** - formatting is retained if possible so your generated code is as similar as possible.
- - **Extensible** - with a large range of [plugins](plugins.md) and **browser support**.
- - **Lossless** - **source map support** so you can debug your compiled code with ease.
- - **Compact** - maps directly to the equivalent ES5 with **no runtime**[\*](caveats.md).
-
-## Installation
-
-It's as easy as:
-
-    $ npm install -g 6to5
-
-## Usage
-
-Once you've installed 6to5, there are multiple paths you can take depending on
-how you want to use it.
-
-6to5 will simply compile your ES6+ script to ES5 if you pass it as an argument
-to the command-line tool `6to5`:
-
-```sh
-$ 6to5 script.js
-```
-
-If you have a file written using ES6+ and you just want to run it, `6to5-node`
-has you covered:
-
-```sh
-$ 6to5-node script.js
-```
-
-And it doesn't end here! To see all the ways you can use 6to5, check out the
-[Usage](http://6to5.github.io/usage.html) page.
-
-## [Features](features.md)
-
- - [Abstract references](features.md#abstract-references) ([experimental](experimental.md))
- - [Array comprehension](features.md#array-comprehension) ([experimental](experimental.md))
- - [Async functions](features.md#async-functions) ([experimental](experimental.md))
- - [Async generator functions](features.md#async-generator-functions) ([experimental](experimental.md))
- - [Arrow functions](features.md#arrow-functions)
- - [Classes](features.md#classes)
- - [Computed property names](features.md#computed-property-names)
- - [Constants](features.md#constants)
- - [Default parameters](features.md#default-parameters)
- - [Destructuring](features.md#destructuring)
- - [Exponentiation operator](features.md#exponentiation-operator) ([experimental](experimental.md))
- - [For-of](features.md#for-of)
- - [Generators](features.md#generators)
- - [Generator comprehension](features.md#generator-comprehension) ([experimental](experimental.md))
- - [Let scoping](features.md#let-scoping)
- - [Modules](features.md#modules)
- - [Numeric literals](features.md#numeric-literals)
- - [Object rest/spread](features.md#object-rest-spread) ([experimental](experimental.md))
- - [Property method assignment](features.md#property-method-assignment)
- - [Property name shorthand](features.md#property-name-shorthand)
- - [React/JSX](react.md)
- - [Rest parameters](features.md#rest-parameters)
- - [Spread](features.md#spread)
- - [Template literals](features.md#template-literals)
- - [Unicode regex](features.md#unicode-regex)
+See [6to5.github.io/docs](https://github.com/6to5/6to5.github.io/tree/master/docs).
--- a/doc/modules.md
+++ b/doc/modules.md
@@ -1,257 +0,0 @@
-# Modules
-
-## Usage
-
-### CLI
-
-```sh
-$ 6to5 --modules common script.js
-```
-
-### Node
-
-```javascript
-var to5 = require("6to5");
-to5.transform('import "foo";', { modules: "common" });
-```
-
-## Formats
-
- * [AMD](#amd)
- * [Common (Default)](#common-default)
- * [Ignore](#ignore)
- * [System](#system)
- * [UMD](#umd)
-
-### Common
-
-```sh
-$ 6to5 --modules common
-```
-
-**In**
-
-```javascript
-export default test;
-
-export {test};
-export var test = 5;
-
-import "foo";
-
-import foo from "foo";
-import * as foo from "foo";
-
-import {bar} from "foo";
-import {foo as bar} from "foo";
-```
-
-**Out**
-
-```javascript
-"use strict";
-
-var _interopRequire = function (obj) {
-  return obj && (obj["default"] || obj);
-};
-
-exports = module.exports = test;
-
-exports.test = test;
-var test = exports.test = 5;
-
-require("foo");
-
-var foo = _interopRequire(require("foo"));
-
-var foo = require("foo");
-
-var bar = require("foo").bar;
-var bar = require("foo").foo;
-```
-
-### AMD
-
-```sh
-$ 6to5 --modules amd
-```
-
-**In**
-
-```javascript
-import foo from "foo";
-
-export function bar() {
-  return foo("foobar");
-}
-```
-
-**Out**
-
-```javascript
-define(["exports", "foo"], function (exports, _foo) {
-  "use strict";
-
-  var _interopRequire = function (obj) {
-    return obj && (obj["default"] || obj);
-  };
-
-  exports.bar = bar;
-  var foo = _interopRequire(_foo);
-
-  function bar() {
-    return foo("foobar");
-  }
-});
-```
-
-You can optionally specify to include the module id (using the `--amd-module-id` argument):
-
-```javascript
-define("filename", ["exports", "foo"], function (exports, _foo) {})
-```
-
-### UMD
-
-```sh
-$ 6to5 --modules umd
-```
-
-**In**
-
-```javascript
-import foo from "foo";
-
-export function bar() {
-  return foo("foobar");
-}
-```
-
-**Out**
-
-```javascript
-(function (factory) {
-  if (typeof define === "function" && define.amd) {
-    define(["exports", "foo"], factory);
-  } else if (typeof exports !== "undefined") {
-    factory(exports, require("foo"));
-  }
-})(function (exports, _foo) {
-  "use strict";
-
-  var _interopRequire = function (obj) {
-    return obj && (obj["default"] || obj);
-  };
-
-  exports.bar = bar;
-  var foo = _interopRequire(_foo);
-
-  function bar() {
-    return foo("foobar");
-  }
-});
-```
-
-### Ignore
-
-```sh
-$ 6to5 --modules ignore
-```
-
-**In**
-
-```javascript
-import foo from "foo";
-
-export function bar() {
-  return foo("foobar");
-}
-```
-
-**Out**
-
-```javascript
-function bar() {
-  return foo("foobar");
-}
-```
-
-### System
-
-```sh
-$ 6to5 --modules system
-```
-
-**In**
-
-```javascript
-import foo from "foo";
-
-export function bar() {
-  return foo("foobar");
-}
-```
-
-**Out**
-
-```javascript
-System.register("bar", ["foo"], function (_export) {
-  "use strict";
-
-  var __moduleName = "bar";
-
-  var foo;
-  function bar() {
-    return foo("foobar");
-  }
-  return {
-    setters: [function (m) {
-      foo = m.default;
-    }],
-    execute: function () {
-      _export("bar", bar);
-    }
-  };
-});
-```
-
-## Custom
-
-You can alternatively specify module names instead of one of the built-in types.
-
-```sh
-$ 6to5 --modules custom-module-formatter
-```
-
-**node_modules/custom-module-formatter/index.js**
-
-```javascript
-module.exports = ModuleFormatter;
-
-function ModuleFormatter() {
-
-}
-
-ModuleFormatter.prototype.transform = function (ast) {
-  // this is ran after all transformers have had their turn at modifying the ast
-  // feel free to modify this however
-};
-
-ModuleFormatter.prototype.importDeclaration = function (node, nodes) {
-  // node is an ImportDeclaration
-};
-
-ModuleFormatter.prototype.importSpecifier = function (specifier, node, nodes) {
-  // specifier is an ImportSpecifier
-  // node is an ImportDeclaration
-};
-
-ModuleFormatter.prototype.exportDeclaration = function (node, nodes) {
-  // node is an ExportDeclaration
-};
-
-ModuleFormatter.prototype.exportSpecifier = function (specifier, node, nodes) {
-  // specifier is an ExportSpecifier
-  // node is an ExportDeclaration
-};
-```
--- a/doc/optional-runtime.md
+++ b/doc/optional-runtime.md
@@ -1,57 +0,0 @@
-# Optional runtime
-
-6to5 has a few helper functions that'll be placed at the top of the generated
-code if needed so it's not inlined multiple times throughout that file. This may
-become an issue if you have multiple files, especially when you're sending them
-to the browser. gzip alleviates most of this concern but it's still not ideal.
-
-You can tell 6to5 to not place any declarations at the top of your files and
-instead just point them to a reference contained within the runtime.
-
-Simply use the following option if you're using the [Node API](usage.md#node):
-
-```javascript
-{
-  runtime: true
-}
-```
-
-or the following flag if you're using the [CLI](usage.md#cli):
-
-```ssh
-$ 6to5 --runtime
-```
-
-Then just include the runtime before your generated code.
-
-## Getting the runtime
-
-You can get the runtime via either:
-
-```sh
-$ 6to5-runtime
-```
-
-or
-
-```javascript
-require("6to5").runtime();
-```
-
-or from an npm release in `runtime.js` from the 6to5 directory.
-
-## Customising namespace
-
-You can also customise the runtime namespace by passing an optional namespace
-argument:
-
-```javascript
-require("6to5").runtime("myCustomNamespace");
-```
-
-```sh
-$ 6to5-runtime myCustomNamespace
-```
-
-See [Options - runtime](usage.md#options) for documentation on changing the
-reference in generated code.
--- a/doc/playground.md
+++ b/doc/playground.md
@@ -1,140 +0,0 @@
-# Playground
-
-Playground is a proving ground for **possible** ES7 proposals.
-
-**NOTE: These features are in no way endorsed by Ecma International and are not a part of ES6. They might become a part of ECMAScript in the future.**
-
-## Usage
-
-    $ 6to5 --playground
-
-```javascript
-to5.transform("code", { playground: true });
-```
-
-**NOTE:** Enabling `playground` also enables [experimental support](experimental.md).
-
-## Features
-
- * [Memoization operator](#memoization-operator)
- * [Method binding](#method-binding)
- * [Method binding function shorthand](#method-binding-function-shorthand)
- * [Object getter memoization](#object-getter-memoization)
- * [This shorthand](#this-shorthand)
-
-### Memoization assignment operator
-
-The memoization assignment operator allows you to lazily set an object property.
-It checks whether there's a property defined on the object and if there isn't then
-the right hand value is set.
-
-This means that `obj.x` in the following `var x = { x: undefined }; obj.x ?= 2;`
-will still be `undefined` because it's already been defined on the object.
-
-```javascript
-var obj = {};
-obj.x ?= 2;
-obj.x; // 2
-
-obj = { x: 1 };
-obj.x ?= 2;
-obj.x; // 1
-
-obj = { x: undefined }
-obj.x ?= 2;
-obj.x; // undefined
-```
-
-```javascript
-var obj = {};
-obj.x ?= 2;
-```
-
-equivalent to
-
-```javascript
-var obj = {};
-if (!Object.prototype.hasOwnProperty.call(obj, "x")) obj.x = 2;
-```
-
-### Method binding
-
-```javascript
-var fn = obj#method;
-var fn = obj#method("foob");
-```
-
-equivalent to
-
-```javascript
-var fn = obj.method.bind(obj);
-var fn = obj.method.bind(obj, "foob");
-```
-
-### Method binding function shorthand
-
-```javascript
-["foo", "bar"].map(#toUpperCase); // ["FOO", "BAR"]
-[1.1234, 23.53245, 3].map(#toFixed(2)); // ["1.12", "23.53", "3.00"]
-```
-
-equivalent to
-
-```javascript
-["foo", "bar"].map(function (val) { return val.toUpperCase(); });
-[1.1234, 23.53245, 3].map(function (val) { return val.toFixed(2); });
-```
-
-### Object getter memoization
-
-```javascript
-var foo = {
-  memo bar() {
-    return complex();
-  }
-};
-
-class Foo {
-  memo bar() {
-    return complex();
-  }
-}
-```
-
-equivalent to
-
-```javascript
-var foo = {
-  get bar() {
-    return Object.defineProperty(this, "bar", {
-      value: complex(),
-      enumerable: true,
-      configurable: true,
-      writable: true
-    }).bar;
-  }
-};
-
-class Foo {
-  get bar() {
-    return Object.defineProperty(this, "bar", {
-      value: complex(),
-      enumerable: true,
-      configurable: true,
-      writable: true
-    }).bar;
-  }
-}
-```
-
-### This shorthand
-
-```javascript
-@foo
-```
-
-equivalent to
-
-```javascirpt
-this.foo
-```
--- a/doc/plugins.md
+++ b/doc/plugins.md
@@ -1,33 +0,0 @@
-# Plugins
-
-## Build systems
-
- - [Broccoli](https://github.com/6to5/broccoli-6to5-transpiler)
- - [Browserify](https://github.com/6to5/6to5ify)
- - [Brunch](https://github.com/6to5/6to5-brunch)
- - [Duo](https://github.com/6to5/duo6to5)
- - [Gobble](https://github.com/6to5/gobble-6to5)
- - [Gulp](https://github.com/6to5/gulp-6to5)
- - [Grunt](https://github.com/6to5/grunt-6to5)
- - [Sprockets](https://github.com/josh/sprockets-es6) or via [Browserify](https://github.com/6to5/6to5-rails)
- - [webpack](https://github.com/6to5/6to5-loader)
-
-## Integrations
-
- - [Isparta](https://github.com/douglasduteil/isparta) - Code coverage with `karma` and `instanbul` using 6to5
- - [JSXHint](https://github.com/STRML/JSXHint) - A wrapper around JSHint to allow linting of JSX files
-
-## Bridges
-
- - [Ruby](https://github.com/6to5/6to5-ruby)
-
-## Testing
-
- - [Jest](https://github.com/6to5/6to5-jest)
- - [Karma](https://github.com/6to5/karma-6to5-preprocessor)
- - [Mocha](https://github.com/6to5/6to5-mocha)
-
-## Misc
-
- - [Connect](https://github.com/6to5/6to5-connect)
- - [Jade](https://github.com/6to5/jade-6to5)
--- a/doc/polyfill.md
+++ b/doc/polyfill.md
@@ -1,34 +0,0 @@
-# Polyfill
-
-6to5 includes a polyfill that includes a custom
-[regenerator runtime](https://github.com/facebook/regenerator/blob/master/runtime.js) and
-[core.js](https://github.com/zloirock/core-js).
-
-This will emulate a full ES6 environment. This polyfill is automatically loaded
-when using [6to5-node](usage.md#node) and [6to5/register](usage.md#register-hook).
-
-## Usage
-
-### Node/Browserify
-
-You need to include the polyfill require at the top the **entry point** to your
-application.
-
-```javascript
-require("6to5/polyfill");
-```
-
-Fortunately, this is automatically loaded when using:
-
-```javascript
-require("6to5/register");
-```
-
-### Browser
-
-Available from the `browser-polyfill.js` file within the 6to5 directory of an
-npm release. This needs to be included **before** all your compiled 6to5 code.
-You can either prepend it to your compiled code or include it in a `<script>`
-before it.
-
-**NOTE:** Do not `require` this via browserify etc, use `6to5/polyfill`.
--- a/doc/react.md
+++ b/doc/react.md
@@ -1,17 +0,0 @@
-# React/JSX
-
-6to5 has built-in support for React v0.12. Tags are automatically transformed to
-their equivalent `React.createElement(...)` and `displayName` is automatically
-inferred and added to all `React.createClass` calls.
-
-## Blacklist
-
-To disable this behaviour add `react` to your blacklist:
-
-```javascript
-to5.transform("code", { blacklist: ["react"] });
-```
-
-```sh
-$ 6to5 --blacklist react
-```
--- a/doc/usage.md
+++ b/doc/usage.md
@@ -1,259 +0,0 @@
-# Usage
-
-## CLI
-
-Compile the file `script.js` and output it to stdout.
-
-```sh
-$ 6to5 script.js
-```
-
-Compile the file `script.js` and output it to `script-compiled.js`.
-
-```sh
-$ 6to5 script.js --out-file script-compiled.js
-```
-
-Compile the file `script.js` and output it to `script-compiled.js` and save a
-source map to `script-compiled.js.map`.
-
-```sh
-$ 6to5 script.js --source-maps --out-file script-compiled.js
-```
-
-Compile the file `script.js` and output it to `script-compiled.js` with a source
-map embedded in a comment at the bottom.
-
-```sh
-$ 6to5 script.js --source-maps-inline --out-file script-compiled.js
-```
-
-Compile the entire `src` directory and output it to the `lib` directory.
-
-```sh
-$ 6to5 src --out-dir lib
-```
-
-Compile the entire `src` directory and output it to the one concatenated file.
-
-```sh
-$ 6to5 src --out-file script-compiled.js
-```
-
-Pipe a file in via stdin and output it to `script-compiled.js`
-
-```sh
-$ 6to5 --out-file script-compiled.js < script.js
-```
-
-### Node
-
-Launch a repl.
-
-```sh
-$ 6to5-node
-```
-
-Evaluate code.
-
-```sh
-$ 6to5-node -e "class Test { }"
-```
-
-Compile and run `test.js`.
-
-```sh
-$ 6to5-node test
-```
-
-## Node
-
-```javascript
-var to5 = require("6to5");
-```
-
-### to5.transform(code, [opts]);
-
-```javascript
-var result = to5.transform("code();", options);
-result.code;
-result.map;
-result.ast;
-```
-
-### to5.transformFileSync(filename, [opts])
-
-```javascript
-to5.transformFileSync("filename.js", options).code;
-```
-
-### to5.transformFile(filename, [opts], callback)
-
-```javascript
-to5.transformFile("filename.js", options, function (err, result) {
-  result.code;
-});
-```
-
-### to5.transform.fromAst(ast, [code], [opts])
-
-```javascript
-var result = to5.transform.fromAst(ast, "var a = 2;", opts);
-result.code;
-result.map;
-result.ast;
-```
-
-#### Options
-
-```javascript
-{
-  // Filename for use in errors etc.
-  // Default: "unknown"
-  filename: "filename",
-
-  // Filename relative to `sourceRoot`
-  // Default: `filename` option.
-  filenameRelative: "",
-
-  // List of transformers to EXCLUDE.
-  // Run `6to5 --help` to see a full list of transformers.
-  blacklist: [],
-
-  // List of transformers to ONLY use.
-  // Run `6to5 --help` to see a full list of transformers.
-  whitelist: [],
-
-  // Module formatter to use
-  // Run `6to5 --help` to see a full list of module formatters.
-  // Default: "common"
-  modules: "common",
-
-  // If truthy, adds a `map` property to returned output.
-  // If set to "inline", a comment with a sourceMappingURL directive is added to
-  // the bottom of the returned code.
-  // Default: false
-  sourceMap: true,
-
-  // Set `file` on returned source map.
-  // Default: `filenameRelative` option.
-  sourceMapName: "filename",
-
-  // Set `sources[0]` on returned source map.
-  // Default: `filenameRelative` option.
-  sourceFileName: "filename",
-
-  // The root from which all sources are relative
-  // Default: `moduleRoot` option.
-  sourceRoot: "assets/scripts",
-
-  // Optional prefix for the AMD module formatter that will be prepend to the
-  // filename on module definitions
-  // Default: `sourceRoot` option.
-  moduleRoot: "my-app",
-
-  // If truthy, insert an explicit id for each defined AMD/System module.
-  // By default, AMD/System modules are anonymous.
-  // Default: false
-  moduleIds: true,
-
-  // Optionally replace all 6to5 helper declarations with a referenece to this
-  // variable. If set to `true` then the default namespace is used "to5Runtime".
-  // Default: false
-  runtime: true,
-
-  // Enable support for experimental ES7 features
-  // Default: false
-  experimental: true,
-
-  // Set this to `false` if you don't want the transformed AST in the returned
-  // result
-  // Default: true
-  ast: true,
-
-  // Set this to `false` if you don't want the transformed code in the returned
-  // result
-  // Default: true
-  code: true,
-
-  format: {
-    // Output comments in generated output
-    // Default: true
-    comments: true,
-
-    // Do not include superfluous whitespace characters and line terminators
-    // Default: false
-    compact: false,
-
-    indent: {
-      // Preserve parentheses in new expressions that have no arguments
-      // Default: true
-      parentheses: true,
-
-      // Adjust the indentation of multiline comments to keep asterisks vertically aligned
-      // Default: true
-      adjustMultilineComment: true,
-
-      // Indent string
-      // Default: "  "
-      style: "  ",
-
-      // Base indent level
-      // Default: 0
-      base: 0
-    }
-  }
-}
-```
-
-### Require hook
-
-All subsequent files required by node with the extensions `.es6`, `.es` and `.js` will
-be transformed by 6to5. The polyfill specified in [Polyfill](polyfill.md) is
-also required; but this is automatically loaded when using:
-
-Source maps are automatically configured so if any errors a thrown then line
-number info is mapped and you'll get the correct source location.
-
-```javascript
-require("6to5/register");
-```
-
-**NOTE:** By default all requires to `node_modules` will be ignored. You can
-override this by passing an ignore regex via:
-
-```javascript
-require("6to5/register")({
-  // This will override `node_modules` ignoring - you can alternatively pass
-  // a regex
-  ignore: false
-});
-```
-
-**NOTE:** Using 6to5-node or `require("6to5/register")`, 6to5 will check what features are available in the current environment and blacklists them if they're supported.
-
-#### Options
-
-```javascript
-require("6to5/register")({
-  // Optional ignore regex - if any filenames **do** match this regex then they
-  // aren't compiled
-  ignore: /regex/,
-
-  // Optional only regex - if any filenames **don't** match this regex then they
-  // aren't compiled
-  only: /my_es6_folder/,
-
-  // See options above for usage
-  whitelist: [],
-  blacklist: [],
-
-  // This will remove the currently hooked extensions of .es6 and .js so you'll
-  // have to add them back if you want them to be used again.
-  extensions: [".js", ".es6"],
-
-  // Enables `roadrunner` cache that will save to a `.roadrunner.json` file in your cwd
-  // Do not check this into git as it's user-specific
-  cache: true
-});
-```
--- a/lib/6to5/browser.js
+++ b/lib/6to5/browser.js
@@ -1,5 +1,7 @@
 var transform = module.exports = require("./transformation/transform");

+transform.version = require("../../package").version;
+
 transform.transform = transform;

 transform.run = function (code, opts) {
--- a/lib/6to5/file.js
+++ b/lib/6to5/file.js
@@ -35,7 +35,8 @@ File.helpers = [
  "async-to-generator",
  "interop-require-wildcard",
  "typeof",
-  "exports-wildcard"
+  "exports-wildcard",
+  "extends"
 ];

 File.excludeHelpersFromRuntime = [
@@ -48,6 +49,7 @@ File.normaliseOptions = function (opts) {

  _.defaults(opts, {
    experimental: false,
+    reactCompat:  false,
    playground:   false,
    whitespace:   true,
    moduleIds:    opts.amdModuleIds || false,
--- a/lib/6to5/generation/generators/expressions.js
+++ b/lib/6to5/generation/generators/expressions.js
@@ -57,8 +57,28 @@ exports.ThisExpression = function () {

 exports.CallExpression = function (node, print) {
  print(node.callee);
+
  this.push("(");
-  print.join(node.arguments, { separator: ", " });
+
+  var separator = ",";
+
+  if (node._prettyPrint) {
+    separator += "\n";
+    this.newline();
+    this.indent();
+  } else {
+    separator += " ";
+  }
+
+  print.join(node.arguments, {
+    separator: separator
+  });
+
+  if (node._prettyPrint) {
+    this.newline();
+    this.dedent();
+  }
+
  this.push(")");
 };

--- a/lib/6to5/index.js
+++ b/lib/6to5/index.js
@@ -3,6 +3,8 @@ var util      = require("./util");
 var fs        = require("fs");
 var _         = require("lodash");

+exports.version = require("../../package").version;
+
 exports.types = require("./types");

 exports.runtime = require("./runtime-generator");
--- a/lib/6to5/transformation/modules/_default.js
+++ b/lib/6to5/transformation/modules/_default.js
@@ -9,7 +9,11 @@ function DefaultFormatter(file) {
  this.file = file;

  this.localExports = this.getLocalExports();
+  this.localImports = this.getLocalImports();
+
  this.remapAssignments();
+
+  //this.checkCollisions();
 }

 DefaultFormatter.prototype.getLocalExports = function () {
@@ -27,6 +31,53 @@ DefaultFormatter.prototype.getLocalExports = function () {
  return localExports;
 };

+DefaultFormatter.prototype.getLocalImports = function () {
+  var localImports = {};
+
+  traverse(this.file.ast, {
+    enter: function (node) {
+      if (t.isImportDeclaration(node)) {
+        _.extend(localImports, t.getIds(node, true));
+      }
+    }
+  });
+
+  return localImports;
+};
+
+DefaultFormatter.prototype.checkCollisions = function () {
+  // todo: all check export collissions
+
+  var localImports = this.localImports;
+  var file = this.file;
+
+  var isLocalReference = function (node) {
+    return t.isIdentifier(node) && _.has(localImports, node.name) && localImports[node.name] !== node;
+  };
+
+  var check = function (node) {
+    if (isLocalReference(node)) {
+      throw file.errorWithNode(node, "Illegal assignment of module import");
+    }
+  };
+
+  traverse(file.ast, {
+    enter: function (node) {
+      if (t.isAssignmentExpression(node)) {
+
+        var left = node.left;
+        if (t.isMemberExpression(left)) {
+          while (left.object) left = left.object;
+        }
+
+        check(left);
+      } else if (t.isDeclaration(node)) {
+        _.each(t.getIds(node, true), check);
+      }
+    }
+  });
+};
+
 DefaultFormatter.prototype.remapExportAssignment = function (node) {
  return t.assignmentExpression(
    "=",
@@ -110,6 +161,9 @@ DefaultFormatter.prototype.getModuleName = function () {

  moduleName += filenameRelative;

+  // normalise path separators
+  moduleName = moduleName.replace(/\\/g, "/");
+
  return moduleName;
 };

@@ -142,10 +196,11 @@ DefaultFormatter.prototype._exportSpecifier = function (getRef, specifier, node,
      nodes.push(this._exportsWildcard(getRef(), node));
    } else {
      var ref;
-      if (t.isSpecifierDefault(specifier.id) || this.noInteropRequire) {
-        ref = t.memberExpression(getRef(), specifier.id);
-      } else {
+      if (t.isSpecifierDefault(specifier) && !this.noInteropRequire) {
+        // importing a default so we need to normalise it
        ref = t.callExpression(this.file.addHelper("interop-require"), [getRef()]);
+      } else {
+        ref = t.memberExpression(getRef(), specifier.id);
      }

      // export { foo } from "test";
--- a/lib/6to5/transformation/modules/amd.js
+++ b/lib/6to5/transformation/modules/amd.js
@@ -1,6 +1,7 @@
 module.exports = AMDFormatter;

 var DefaultFormatter = require("./_default");
+var CommonFormatter  = require("./common");
 var util             = require("../../util");
 var t                = require("../../types");
 var _                = require("lodash");
@@ -30,12 +31,15 @@ AMDFormatter.prototype.transform = function (ast) {

  // build an array of module names

-  var names = [t.literal("exports")].concat(this.buildDependencyLiterals());
+  var names = [t.literal("exports")];
+  if (this.passModuleArg) names.push(t.literal("module"));
+  names = names.concat(this.buildDependencyLiterals());
  names = t.arrayExpression(names);

  // build up define container

  var params = _.values(this.ids);
+  if (this.passModuleArg) params.unshift(t.identifier("module"));
  params.unshift(t.identifier("exports"));

  var container = t.functionExpression(null, params, t.blockStatement(body));
@@ -96,6 +100,14 @@ AMDFormatter.prototype.importSpecifier = function (specifier, node, nodes) {
  ]));
 };

+AMDFormatter.prototype.exportDeclaration = function (node) {
+  if (node.default) {
+    this.passModuleArg = true;
+  }
+
+  CommonFormatter.prototype.exportDeclaration.apply(this, arguments);
+};
+
 AMDFormatter.prototype.exportSpecifier = function (specifier, node, nodes) {
  var self = this;
  return this._exportSpecifier(function () {
--- a/lib/6to5/transformation/modules/common.js
+++ b/lib/6to5/transformation/modules/common.js
@@ -61,7 +61,7 @@ CommonJSFormatter.prototype.importDeclaration = function (node, nodes) {
 };

 CommonJSFormatter.prototype.exportDeclaration = function (node, nodes) {
-  if (node.default) {
+  if (node.default && !this.exportIdentifier) {
    var declar = node.declaration;
    var assign;

@@ -83,10 +83,12 @@ CommonJSFormatter.prototype.exportDeclaration = function (node, nodes) {
      // this export isn't a function so we can't hoist it to the top so we need to set it
      // at the very end of the file with something like:
      //
-      //   module.exports = Object.assign(exports["default"], exports)
+      //   module.exports = _extends(exports["default"], exports)
      //

-      assign = util.template("common-export-default-assign", true);
+      assign = util.template("common-export-default-assign", {
+        EXTENDS_HELPER: this.file.addHelper("extends")
+      }, true);
      assign._blockHoist = 0;

      nodes.push(assign);
--- a/lib/6to5/transformation/modules/umd.js
+++ b/lib/6to5/transformation/modules/umd.js
@@ -25,22 +25,37 @@ UMDFormatter.prototype.transform = function (ast) {
  // factory

  var ids  = _.values(this.ids);
-  var args = [t.identifier("exports")].concat(ids);
+  var args = [t.identifier("exports")];
+  if (this.passModuleArg) args.push(t.identifier("module"));
+  args = args.concat(ids);

  var factory = t.functionExpression(null, args, t.blockStatement(body));

  // runner

-  var defineArgs = [t.arrayExpression([t.literal("exports")].concat(names))];
+  var defineArgs = [t.literal("exports")];
+  if (this.passModuleArg) defineArgs.push(t.literal("module"));
+  defineArgs = defineArgs.concat(names);
+  defineArgs = [t.arrayExpression(defineArgs)];
+
+  // typeof exports !== "undefined" && typeof module !== "undefined"
+  var testExports = t.binaryExpression("!==", t.unaryExpression("typeof", t.identifier("exports"), true), t.literal("undefined")),
+      testModule = t.binaryExpression("!==", t.unaryExpression("typeof", t.identifier("module"), true), t.literal("undefined")),
+      commonTests = this.passModuleArg ? t.logicalExpression("&&", testExports, testModule) : testExports;
+
+  var commonArgs = [t.identifier("exports")];
+  if (this.passModuleArg) commonArgs.push(t.identifier("module"));
+  commonArgs = commonArgs.concat(names.map(function (name) {
+    return t.callExpression(t.identifier("require"), [name]);
+  }));
+
  var moduleName = this.getModuleName();
  if (moduleName) defineArgs.unshift(t.literal(moduleName));

  var runner = util.template("umd-runner-body", {
    AMD_ARGUMENTS: defineArgs,
-
-    COMMON_ARGUMENTS: names.map(function (name) {
-      return t.callExpression(t.identifier("require"), [name]);
-    })
+    COMMON_TEST: commonTests,
+    COMMON_ARGUMENTS: commonArgs
  });

  //
--- a/lib/6to5/transformation/templates/common-export-default-assign.js
+++ b/lib/6to5/transformation/templates/common-export-default-assign.js
@@ -1 +1 @@
-module.exports = Object.assign(exports["default"], exports);
+module.exports = EXTENDS_HELPER(exports["default"], exports);
--- a/lib/6to5/transformation/templates/extends.js
+++ b/lib/6to5/transformation/templates/extends.js
@@ -0,0 +1,9 @@
+(function (target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i];
+    for (var key in source) {
+      target[key] = source[key];
+    }
+  }
+  return target;
+})
--- a/lib/6to5/transformation/templates/rest.js
+++ b/lib/6to5/transformation/templates/rest.js
@@ -1,3 +1,3 @@
 for (var KEY = START; KEY < ARGUMENTS.length; KEY++) {
-  ARRAY[$__0] = ARGUMENTS[KEY];
+  ARRAY[ARRAY_KEY] = ARGUMENTS[KEY];
 }
--- a/lib/6to5/transformation/templates/umd-runner-body.js
+++ b/lib/6to5/transformation/templates/umd-runner-body.js
@@ -1,7 +1,7 @@
 (function (factory) {
  if (typeof define === "function" && define.amd) {
    define(AMD_ARGUMENTS, factory);
-  } else if (typeof exports !== "undefined") {
-    factory(exports, COMMON_ARGUMENTS);
+  } else if (COMMON_TEST) {
+    factory(COMMON_ARGUMENTS);
  }
 });
--- a/lib/6to5/transformation/transform.js
+++ b/lib/6to5/transformation/transform.js
@@ -39,8 +39,6 @@ transform.moduleFormatters = {
 };

 _.each({
-  // spec
-  specBlockHoistFunctions:   require("./transformers/spec-block-hoist-functions"),
  specNoForInOfAssignment:   require("./transformers/spec-no-for-in-of-assignment"),

  // playground
--- a/lib/6to5/transformation/transformers/es6-rest-parameters.js
+++ b/lib/6to5/transformation/transformers/es6-rest-parameters.js
@@ -12,6 +12,14 @@ exports.Function = function (node, parent, file) {
  var argsId = t.identifier("arguments");
  argsId._ignoreAliasFunctions = true;

+  var start = t.literal(node.params.length);
+  var key = file.generateUidIdentifier("key");
+
+  var arrKey = key;
+  if (node.params.length) {
+    arrKey = t.binaryExpression("-", arrKey, start);
+  }
+
  node.body.body.unshift(
    t.variableDeclaration("var", [
      t.variableDeclarator(rest, t.arrayExpression([]))
@@ -19,9 +27,10 @@ exports.Function = function (node, parent, file) {

    util.template("rest", {
      ARGUMENTS: argsId,
-      START: t.literal(node.params.length),
+      ARRAY_KEY: arrKey,
+      START: start,
      ARRAY: rest,
-      KEY: file.generateUidIdentifier("key")
+      KEY: key
    })
  );
 };
--- a/lib/6to5/transformation/transformers/es7-object-spread.js
+++ b/lib/6to5/transformation/transformers/es7-object-spread.js
@@ -4,7 +4,7 @@ var t = require("../../types");

 exports.experimental = true;

-exports.ObjectExpression = function (node) {
+exports.ObjectExpression = function (node, parent, file) {
  var hasSpread = false;
  var i;
  var prop;
@@ -42,5 +42,5 @@ exports.ObjectExpression = function (node) {
    args.unshift(t.objectExpression([]));
  }

-  return t.callExpression(t.memberExpression(t.identifier("Object"), t.identifier("assign")), args);
+  return t.callExpression(file.addHelper("extends"), args);
 };
--- a/lib/6to5/transformation/transformers/optional-proto-to-assign.js
+++ b/lib/6to5/transformation/transformers/optional-proto-to-assign.js
@@ -1,8 +1,6 @@
 var t = require("../../types");
 var _ = require("lodash");

-var OBJECT_ASSIGN_MEMBER = t.memberExpression(t.identifier("Object"), t.identifier("assign"));
-
 var isProtoKey = function (node) {
  return t.isLiteral(t.toComputedKey(node, node.key), { value: "__proto__" });
 };
@@ -43,7 +41,7 @@ exports.ExpressionStatement = function (node, parent, file) {
  }
 };

-exports.ObjectExpression = function (node) {
+exports.ObjectExpression = function (node, parent, file) {
  var proto;

  for (var i in node.properties) {
@@ -58,6 +56,6 @@ exports.ObjectExpression = function (node) {
  if (proto) {
    var args = [t.objectExpression([]), proto];
    if (node.properties.length) args.push(node);
-    return t.callExpression(OBJECT_ASSIGN_MEMBER, args);
+    return t.callExpression(file.addHelper("extends"), args);
  }
 };
--- a/lib/6to5/transformation/transformers/react.js
+++ b/lib/6to5/transformation/transformers/react.js
@@ -32,12 +32,17 @@ exports.XJSExpressionContainer = function (node) {
 exports.XJSAttribute = {
  exit: function (node) {
    var value = node.value || t.literal(true);
-    return t.property("init", node.name, value);
+    return t.inherits(t.property("init", node.name, value), node);
  }
 };

+var isTag = function(tagName) {
+  return (/^[a-z]|\-/).test(tagName);
+};
+
 exports.XJSOpeningElement = {
-  exit: function (node) {
+  exit: function (node, parent, file) {
+    var reactCompat = file.opts.reactCompat;
    var tagExpr = node.name;
    var args = [];

@@ -48,10 +53,12 @@ exports.XJSOpeningElement = {
      tagName = tagExpr.value;
    }

-    if (tagName && (/[a-z]/.exec(tagName[0]) || tagName.indexOf("-") >= 0)) {
-      args.push(t.literal(tagName));
-    } else {
-      args.push(tagExpr);
+    if (!reactCompat) {
+      if (tagName && isTag(tagName)) {
+        args.push(t.literal(tagName));
+      } else {
+        args.push(tagExpr);
+      }
    }

    var props = node.attributes;
@@ -96,7 +103,21 @@ exports.XJSOpeningElement = {

    args.push(props);

-    tagExpr = t.memberExpression(t.identifier("React"), t.identifier("createElement"));
+    if (reactCompat) {
+      if (tagName && isTag(tagName)) {
+        return t.callExpression(
+          t.memberExpression(
+            t.memberExpression(t.identifier("React"), t.identifier("DOM")),
+            tagExpr,
+            t.isLiteral(tagExpr)
+          ),
+          args
+        );
+      }
+    } else {
+      tagExpr = t.memberExpression(t.identifier("React"), t.identifier("createElement"));
+    }
+
    return t.callExpression(tagExpr, args);
  }
 };
@@ -119,16 +140,16 @@ exports.XJSElement = {
          var isLastLine = +i === lines.length - 1;

          // replace rendered whitespace tabs with spaces
-          var trimmedLine = line.replace(/\t/g, ' ');
+          var trimmedLine = line.replace(/\t/g, " ");

          // trim whitespace touching a newline
          if (!isFirstLine) {
-            trimmedLine = trimmedLine.replace(/^[ ]+/, '');
+            trimmedLine = trimmedLine.replace(/^[ ]+/, "");
          }

          // trim whitespace touching an endline
          if (!isLastLine) {
-            trimmedLine = trimmedLine.replace(/[ ]+$/, '');
+            trimmedLine = trimmedLine.replace(/[ ]+$/, "");
          }

          if (trimmedLine) {
@@ -144,6 +165,10 @@ exports.XJSElement = {
      callExpr.arguments.push(child);
    }

+    if (callExpr.arguments.length >= 3) {
+      callExpr._prettyPrint = true;
+    }
+
    return t.inherits(callExpr, node);
  }
 };
--- a/lib/6to5/transformation/transformers/spec-block-hoist-functions.js
+++ b/lib/6to5/transformation/transformers/spec-block-hoist-functions.js
@@ -1,18 +0,0 @@
-var t = require("../../types");
-
-exports.BlockStatement = function (node, parent) {
-  if (t.isFunction(parent)) return;
-
-  node.body = node.body.map(function (node) {
-    if (t.isFunction(node)) {
-      node.type = "FunctionExpression";
-      var declar = t.variableDeclaration("let", [
-        t.variableDeclarator(node.id, node)
-      ]);
-      declar._blockHoist = true;
-      return declar;
-    } else {
-      return node;
-    }
-  });
-};
--- a/lib/6to5/transformation/transformers/spec-member-expression-literals.js
+++ b/lib/6to5/transformation/transformers/spec-member-expression-literals.js
@@ -1,5 +1,4 @@
-var esutils = require("esutils");
-var t       = require("../../types");
+var t = require("../../types");

 exports.MemberExpression = function (node) {
  var prop = node.property;
@@ -7,7 +6,7 @@ exports.MemberExpression = function (node) {
    // computed literal that is a valid identifier
    node.property = t.identifier(prop.value);
    node.computed = false;
-  } else if (!node.computed && t.isIdentifier(prop) && esutils.keyword.isKeywordES6(prop.name, true)) {
+  } else if (!node.computed && t.isIdentifier(prop) && !t.isValidIdentifier(prop.name)) {
    node.property = t.literal(prop.name);
    node.computed = true;
  }
--- a/lib/6to5/transformation/transformers/spec-property-literals.js
+++ b/lib/6to5/transformation/transformers/spec-property-literals.js
@@ -1,5 +1,4 @@
-var esutils = require("esutils");
-var t       = require("../../types");
+var t = require("../../types");

 exports.Property = function (node) {
  var key = node.key;
@@ -7,7 +6,7 @@ exports.Property = function (node) {
    // property key is a literal but a valid identifier
    node.key = t.identifier(key.value);
    node.computed = false;
-  } else if (!node.computed && t.isIdentifier(key) && esutils.keyword.isKeywordES6(key.name, true)) {
+  } else if (!node.computed && t.isIdentifier(key) && !t.isValidIdentifier(key.name)) {
    // property key is a keyword
    node.key = t.literal(key.name);
  }
--- a/lib/6to5/types/index.js
+++ b/lib/6to5/types/index.js
@@ -355,16 +355,24 @@ t.getIds = function (node, map, ignoreTypes) {
    if (!id) continue;
    if (_.contains(ignoreTypes, id.type)) continue;

-    var nodeKey = t.getIds.nodes[id.type];
+    var nodeKeys = t.getIds.nodes[id.type];
    var arrKeys  = t.getIds.arrays[id.type];

+    var i, key;
+
    if (t.isIdentifier(id)) {
      ids[id.name] = id;
-    } else if (nodeKey) {
-      if (id[nodeKey]) search.push(id[nodeKey]);
+    } else if (nodeKeys) {
+      for (i in nodeKeys) {
+        key = nodeKeys[i];
+        if (id[key]) {
+          search.push(id[key]);
+          break;
+        }
+      }
    } else if (arrKeys) {
-      for (var i in arrKeys) {
-        var key = arrKeys[i];
+      for (i in arrKeys) {
+        key = arrKeys[i];
        search = search.concat(id[key] || []);
      }
    }
@@ -375,15 +383,16 @@ t.getIds = function (node, map, ignoreTypes) {
 };

 t.getIds.nodes = {
-  AssignmentExpression: "left",
-  ImportSpecifier: "name",
-  ExportSpecifier: "name",
-  VariableDeclarator: "id",
-  FunctionDeclaration: "id",
-  ClassDeclaration: "id",
-  MemeberExpression: "object",
-  SpreadElement: "argument",
-  Property: "value"
+  AssignmentExpression: ["left"],
+  ImportBatchSpecifier: ["name"],
+  ImportSpecifier: ["name", "id"],
+  ExportSpecifier: ["name", "id"],
+  VariableDeclarator: ["id"],
+  FunctionDeclaration: ["id"],
+  ClassDeclaration: ["id"],
+  MemeberExpression: ["object"],
+  SpreadElement: ["argument"],
+  Property: ["value"]
 };

 t.getIds.arrays = {
--- a/lib/6to5/util.js
+++ b/lib/6to5/util.js
@@ -146,10 +146,10 @@ exports.template = function (name, nodes, keepExpression) {
  var node = template.body[0];

  if (!keepExpression && t.isExpressionStatement(node)) {
-    node = node.expression;
+    return node.expression;
+  } else {
+    return node;
  }
-
-  return node;
 };

 exports.codeFrame = function (lines, lineNumber, colNumber) {
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
  "name": "6to5",
  "description": "Turn ES6 code into readable vanilla ES5 with source maps",
-  "version": "2.6.0",
+  "version": "2.7.3",
  "author": "Sebastian McKenzie <sebmck@gmail.com>",
  "homepage": "https://github.com/6to5/6to5",
  "repository": {
@@ -43,7 +43,7 @@
    "ast-types": "~0.6.1",
    "chokidar": "0.11.1",
    "commander": "2.5.0",
-    "core-js": "^0.4.0",
+    "core-js": "^0.4.1",
    "estraverse": "1.8.0",
    "esutils": "1.1.6",
    "esvalid": "^1.1.0",
--- a/test/fixtures/transformation/es6-modules-amd/exports-default/expected.js
+++ b/test/fixtures/transformation/es6-modules-amd/exports-default/expected.js
@@ -1,17 +1,17 @@
-define(["exports"], function (exports) {
+define(["exports", "module"], function (exports, module) {
  "use strict";

-  exports["default"] = foo;
-  exports["default"] = 42;
-  exports["default"] = {};
-  exports["default"] = [];
-  exports["default"] = foo;
-  exports["default"] = function () {};
+  module.exports = foo;
+  module.exports = 42;
+  module.exports = {};
+  module.exports = [];
+  module.exports = foo;
+  module.exports = function () {};

-  exports["default"] = function () {};
+  module.exports = function () {};

  function foo() {}
  var Foo = function Foo() {};

-  exports["default"] = Foo;
-});
+  module.exports = Foo;
+});
--- a/test/fixtures/transformation/es6-modules-amd/exports-from/expected.js
+++ b/test/fixtures/transformation/es6-modules-amd/exports-from/expected.js
@@ -1,10 +1,6 @@
 define(["exports", "foo"], function (exports, _foo) {
  "use strict";

-  var _interopRequire = function (obj) {
-    return obj && (obj["default"] || obj);
-  };
-
  var _interopRequireWildcard = function (obj) {
    return obj && obj.constructor === Object ? obj : {
      "default": obj
@@ -21,11 +17,11 @@ define(["exports", "foo"], function (exports, _foo) {

  _exportsWildcard(_interopRequireWildcard(_foo));

-  exports.foo = _interopRequire(_foo);
-  exports.foo = _interopRequire(_foo);
-  exports.bar = _interopRequire(_foo);
-  exports.bar = _interopRequire(_foo);
-  exports["default"] = _interopRequire(_foo);
-  exports["default"] = _interopRequire(_foo);
-  exports.bar = _interopRequire(_foo);
-});
+  exports.foo = _foo.foo;
+  exports.foo = _foo.foo;
+  exports.bar = _foo.bar;
+  exports.bar = _foo.foo;
+  exports["default"] = _foo.foo;
+  exports["default"] = _foo.foo;
+  exports.bar = _foo.bar;
+});
--- a/test/fixtures/transformation/es6-modules-amd/imports-default/actual.js
+++ b/test/fixtures/transformation/es6-modules-amd/imports-default/actual.js
@@ -1,2 +1,2 @@
 import foo from "foo";
-import {default as foo} from "foo";
+import {default as foo2} from "foo";
--- a/test/fixtures/transformation/es6-modules-amd/imports-default/expected.js
+++ b/test/fixtures/transformation/es6-modules-amd/imports-default/expected.js
@@ -7,5 +7,5 @@ define(["exports", "foo"], function (exports, _foo) {

  var foo = _interopRequire(_foo);

-  var foo = _interopRequire(_foo);
-});
+  var foo2 = _interopRequire(_foo);
+});
--- a/test/fixtures/transformation/es6-modules-amd/imports-named/actual.js
+++ b/test/fixtures/transformation/es6-modules-amd/imports-named/actual.js
@@ -1,4 +1,4 @@
 import {bar} from "foo";
-import {bar, baz} from "foo";
-import {bar as baz} from "foo";
-import {bar as baz, xyz} from "foo";
+import {bar2, baz} from "foo";
+import {bar as baz2} from "foo";
+import {bar as baz3, xyz} from "foo";
--- a/test/fixtures/transformation/es6-modules-amd/imports-named/expected.js
+++ b/test/fixtures/transformation/es6-modules-amd/imports-named/expected.js
@@ -2,9 +2,9 @@ define(["exports", "foo"], function (exports, _foo) {
  "use strict";

  var bar = _foo.bar;
-  var bar = _foo.bar;
+  var bar2 = _foo.bar2;
  var baz = _foo.baz;
-  var baz = _foo.bar;
-  var baz = _foo.bar;
+  var baz2 = _foo.bar;
+  var baz3 = _foo.bar;
  var xyz = _foo.xyz;
-});
+});
--- a/test/fixtures/transformation/es6-modules-amd/overview/actual.js
+++ b/test/fixtures/transformation/es6-modules-amd/overview/actual.js
@@ -2,11 +2,11 @@ import "foo";
 import "foo-bar";
 import "./directory/foo-bar";
 import foo from "foo";
-import * as foo from "foo";
+import * as foo2 from "foo";
 import {bar} from "foo";
-import {foo as bar} from "foo";
+import {foo as bar2} from "foo";

 export {test};
-export var test = 5;
+export var test2 = 5;

 export default test;
--- a/test/fixtures/transformation/es6-modules-amd/overview/expected.js
+++ b/test/fixtures/transformation/es6-modules-amd/overview/expected.js
@@ -1,4 +1,4 @@
-define(["exports", "foo", "foo-bar", "./directory/foo-bar"], function (exports, _foo, _fooBar, _directoryFooBar) {
+define(["exports", "module", "foo", "foo-bar", "./directory/foo-bar"], function (exports, module, _foo, _fooBar, _directoryFooBar) {
  "use strict";

  var _interopRequire = function (obj) {
@@ -7,11 +7,11 @@ define(["exports", "foo", "foo-bar", "./directory/foo-bar"], function (exports,

  var foo = _interopRequire(_foo);

-  var foo = _foo;
+  var foo2 = _foo;
  var bar = _foo.bar;
-  var bar = _foo.foo;
+  var bar2 = _foo.foo;
  exports.test = test;
-  var test = exports.test = 5;
+  var test2 = exports.test2 = 5;

-  exports["default"] = test;
-});
+  module.exports = test;
+});
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-2/actual.js
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-2/actual.js
@@ -0,0 +1,2 @@
+import { foo } from "foo";
+var foo;
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-2/options.json
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-2/options.json
@@ -0,0 +1,3 @@
+{
+  "throws": "Illegal assignment of module import"
+}
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-3/actual.js
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-3/actual.js
@@ -0,0 +1,2 @@
+import { foo } from "foo";
+foo.bar = 1;
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-3/options.json
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-3/options.json
@@ -0,0 +1,3 @@
+{
+  "throws": "Illegal assignment of module import"
+}
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-4/actual.js
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-4/actual.js
@@ -0,0 +1,2 @@
+import * as foo from "foo";
+foo = 1;
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-4/options.json
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-4/options.json
@@ -0,0 +1,3 @@
+{
+  "throws": "Illegal assignment of module import"
+}
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-5/actual.js
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-5/actual.js
@@ -0,0 +1,2 @@
+import * as foo from "foo";
+var foo;
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-5/options.json
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-5/options.json
@@ -0,0 +1,3 @@
+{
+  "throws": "Illegal assignment of module import"
+}
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-6/actual.js
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-6/actual.js
@@ -0,0 +1,2 @@
+import { foo as bar } from "foo";
+var bar;
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-6/options.json
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-6/options.json
@@ -0,0 +1,3 @@
+{
+  "throws": "Illegal assignment of module import"
+}
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-7/actual.js
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-7/actual.js
@@ -0,0 +1,2 @@
+import { foo as bar } from "foo";
+bar = 1;
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-7/options.json
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-7/options.json
@@ -0,0 +1,3 @@
+{
+  "throws": "Illegal assignment of module import"
+}
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-8/actual.js
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-8/actual.js
@@ -0,0 +1,2 @@
+import { foo } from "foo";
+import { foo } from "bar";
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-8/options.json
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-8/options.json
@@ -0,0 +1,3 @@
+{
+  "throws": "Illegal assignment of module import"
+}
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-9/actual.js
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-9/actual.js
@@ -0,0 +1,2 @@
+import { foo as bar } from "foo";
+import { foo as bar } from "bar";
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-9/options.json
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping-9/options.json
@@ -0,0 +1,3 @@
+{
+  "throws": "Illegal assignment of module import"
+}
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping/actual.js
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping/actual.js
@@ -0,0 +1,2 @@
+import { foo } from "foo";
+foo = 1;
--- a/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping/options.json
+++ b/test/fixtures/transformation/es6-modules-common/.disallow-import-remapping/options.json
@@ -0,0 +1,3 @@
+{
+  "throws": "Illegal assignment of module import"
+}
--- a/test/fixtures/transformation/es6-modules-common/exports-default-non-function/expected.js
+++ b/test/fixtures/transformation/es6-modules-common/exports-default-non-function/expected.js
@@ -1,6 +1,17 @@
 "use strict";

+var _extends = function (target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i];
+    for (var key in source) {
+      target[key] = source[key];
+    }
+  }
+
+  return target;
+};
+
 exports.Cachier = Cachier;
 exports["default"] = new Cachier();
 function Cachier(databaseName) {}
-module.exports = Object.assign(exports["default"], exports);
+module.exports = _extends(exports["default"], exports);
--- a/test/fixtures/transformation/es6-modules-common/exports-from/expected.js
+++ b/test/fixtures/transformation/es6-modules-common/exports-from/expected.js
@@ -1,9 +1,5 @@
 "use strict";

-var _interopRequire = function (obj) {
-  return obj && (obj["default"] || obj);
-};
-
 var _interopRequireWildcard = function (obj) {
  return obj && obj.constructor === Object ? obj : {
    "default": obj
@@ -20,10 +16,10 @@ var _exportsWildcard = function (obj) {

 _exportsWildcard(_interopRequireWildcard(require("foo")));

-exports.foo = _interopRequire(require("foo"));
-exports.foo = _interopRequire(require("foo"));
-exports.bar = _interopRequire(require("foo"));
-exports.bar = _interopRequire(require("foo"));
-exports["default"] = _interopRequire(require("foo"));
-exports["default"] = _interopRequire(require("foo"));
-exports.bar = _interopRequire(require("foo"));
+exports.foo = require("foo").foo;
+exports.foo = require("foo").foo;
+exports.bar = require("foo").bar;
+exports.bar = require("foo").foo;
+exports["default"] = require("foo").foo;
+exports["default"] = require("foo").foo;
+exports.bar = require("foo").bar;
--- a/test/fixtures/transformation/es6-modules-common/imports-default/actual.js
+++ b/test/fixtures/transformation/es6-modules-common/imports-default/actual.js
@@ -1,2 +1,2 @@
 import foo from "foo";
-import {default as foo} from "foo";
+import {default as foo2} from "foo";
--- a/test/fixtures/transformation/es6-modules-common/imports-default/expected.js
+++ b/test/fixtures/transformation/es6-modules-common/imports-default/expected.js
@@ -6,4 +6,4 @@ var _interopRequire = function (obj) {

 var foo = _interopRequire(require("foo"));

-var foo = _interopRequire(require("foo"));
+var foo2 = _interopRequire(require("foo"));
--- a/test/fixtures/transformation/es6-modules-common/imports-named/actual.js
+++ b/test/fixtures/transformation/es6-modules-common/imports-named/actual.js
@@ -1,4 +1,4 @@
 import {bar} from "foo";
-import {bar, baz} from "foo";
-import {bar as baz} from "foo";
-import {bar as baz, xyz} from "foo";
+import {bar2, baz} from "foo";
+import {bar as baz2} from "foo";
+import {bar as baz3, xyz} from "foo";
--- a/test/fixtures/transformation/es6-modules-common/imports-named/expected.js
+++ b/test/fixtures/transformation/es6-modules-common/imports-named/expected.js
@@ -1,8 +1,8 @@
 "use strict";

 var bar = require("foo").bar;
-var bar = require("foo").bar;
+var bar2 = require("foo").bar2;
 var baz = require("foo").baz;
-var baz = require("foo").bar;
-var baz = require("foo").bar;
+var baz2 = require("foo").bar;
+var baz3 = require("foo").bar;
 var xyz = require("foo").xyz;
--- a/test/fixtures/transformation/es6-modules-common/overview/actual.js
+++ b/test/fixtures/transformation/es6-modules-common/overview/actual.js
@@ -2,9 +2,9 @@ import "foo";
 import "foo-bar";
 import "./directory/foo-bar";
 import foo from "foo";
-import * as foo from "foo";
+import * as foo2 from "foo";
 import {bar} from "foo";
-import {foo as bar} from "foo";
+import {foo as bar2} from "foo";

 export {test};
 export var test = 5;
--- a/test/fixtures/transformation/es6-modules-common/overview/expected.js
+++ b/test/fixtures/transformation/es6-modules-common/overview/expected.js
@@ -18,9 +18,9 @@ require("./directory/foo-bar");

 var foo = _interopRequire(require("foo"));

-var foo = _interopRequireWildcard(require("foo"));
+var foo2 = _interopRequireWildcard(require("foo"));

 var bar = require("foo").bar;
-var bar = require("foo").foo;
+var bar2 = require("foo").foo;
 exports.test = test;
 var test = exports.test = 5;
--- a/test/fixtures/transformation/es6-modules-ignore/imports-default/actual.js
+++ b/test/fixtures/transformation/es6-modules-ignore/imports-default/actual.js
@@ -1,2 +1,2 @@
 import foo from "foo";
-import {default as foo} from "foo";
+import {default as foo2} from "foo";
--- a/test/fixtures/transformation/es6-modules-ignore/imports-named/actual.js
+++ b/test/fixtures/transformation/es6-modules-ignore/imports-named/actual.js
@@ -1,4 +1,4 @@
 import {bar} from "foo";
-import {bar, baz} from "foo";
-import {bar as baz} from "foo";
-import {bar as baz, xyz} from "foo";
+import {bar2, baz} from "foo";
+import {bar as baz2} from "foo";
+import {bar as baz3, xyz} from "foo";
--- a/test/fixtures/transformation/es6-modules-ignore/overview/actual.js
+++ b/test/fixtures/transformation/es6-modules-ignore/overview/actual.js
@@ -2,11 +2,11 @@ import "foo";
 import "foo-bar";
 import "./directory/foo-bar";
 import foo from "foo";
-import * as foo from "foo";
+import * as foo2 from "foo";
 import {bar} from "foo";
-import {foo as bar} from "foo";
+import {foo as bar2} from "foo";

 export {test};
-export var test = 5;
+export var test2 = 5;

 export default test;
--- a/test/fixtures/transformation/es6-modules-ignore/overview/expected.js
+++ b/test/fixtures/transformation/es6-modules-ignore/overview/expected.js
@@ -1,3 +1,3 @@
 "use strict";

-var test = 5;
+var test2 = 5;
--- a/test/fixtures/transformation/es6-modules-system/imports-default/actual.js
+++ b/test/fixtures/transformation/es6-modules-system/imports-default/actual.js
@@ -1,2 +1,2 @@
 import foo from "foo";
-import {default as foo} from "foo";
+import {default as foo2} from "foo";
--- a/test/fixtures/transformation/es6-modules-system/imports-default/expected.js
+++ b/test/fixtures/transformation/es6-modules-system/imports-default/expected.js
@@ -1,12 +1,12 @@
 System.register(["foo"], function (_export) {
  "use strict";

-  var foo, foo;
+  var foo, foo2;
  return {
    setters: [function (_foo) {
      foo = _foo["default"];
-      foo = _foo["default"];
+      foo2 = _foo["default"];
    }],
    execute: function () {}
  };
-});
+});
--- a/test/fixtures/transformation/es6-modules-system/imports-named/actual.js
+++ b/test/fixtures/transformation/es6-modules-system/imports-named/actual.js
@@ -1,4 +1,4 @@
 import {bar} from "foo";
-import {bar, baz} from "foo";
-import {bar as baz} from "foo";
-import {bar as baz, xyz} from "foo";
+import {bar2, baz} from "foo";
+import {bar as baz2} from "foo";
+import {bar as baz3, xyz} from "foo";
--- a/test/fixtures/transformation/es6-modules-system/imports-named/expected.js
+++ b/test/fixtures/transformation/es6-modules-system/imports-named/expected.js
@@ -1,16 +1,16 @@
 System.register(["foo"], function (_export) {
  "use strict";

-  var bar, bar, baz, baz, baz, xyz;
+  var bar, bar2, baz, baz2, baz3, xyz;
  return {
    setters: [function (_foo) {
      bar = _foo.bar;
-      bar = _foo.bar;
+      bar2 = _foo.bar2;
      baz = _foo.baz;
-      baz = _foo.bar;
-      baz = _foo.bar;
+      baz2 = _foo.bar;
+      baz3 = _foo.bar;
      xyz = _foo.xyz;
    }],
    execute: function () {}
  };
-});
+});
--- a/test/fixtures/transformation/es6-modules-system/overview/actual.js
+++ b/test/fixtures/transformation/es6-modules-system/overview/actual.js
@@ -2,11 +2,11 @@ import "foo";
 import "foo-bar";
 import "./directory/foo-bar";
 import foo from "foo";
-import * as foo from "foo";
+import * as foo2 from "foo";
 import {bar} from "foo";
-import {foo as bar} from "foo";
+import {foo as bar2} from "foo";

 export {test};
-export var test = 5;
+export var test2 = 5;

 export default test;
--- a/test/fixtures/transformation/es6-modules-system/overview/expected.js
+++ b/test/fixtures/transformation/es6-modules-system/overview/expected.js
@@ -1,19 +1,19 @@
 System.register(["foo", "foo-bar", "./directory/foo-bar"], function (_export) {
  "use strict";

-  var foo, foo, bar, bar, test;
+  var foo, foo2, bar, bar2, test2;
  return {
    setters: [function (_foo) {
      foo = _foo["default"];
-      foo = _foo;
+      foo2 = _foo;
      bar = _foo.bar;
-      bar = _foo.foo;
+      bar2 = _foo.foo;
    }, function (_fooBar) {}, function (_directoryFooBar) {}],
    execute: function () {
      _export("test", test);

-      test = _export("test", 5);
+      test2 = _export("test2", 5);
      _export("default", test);
    }
  };
-});
+});
--- a/test/fixtures/transformation/es6-modules-umd/exports-default/expected.js
+++ b/test/fixtures/transformation/es6-modules-umd/exports-default/expected.js
@@ -1,23 +1,23 @@
 (function (factory) {
  if (typeof define === "function" && define.amd) {
-    define(["exports"], factory);
-  } else if (typeof exports !== "undefined") {
-    factory(exports);
+    define(["exports", "module"], factory);
+  } else if (typeof exports !== "undefined" && typeof module !== "undefined") {
+    factory(exports, module);
  }
-})(function (exports) {
+})(function (exports, module) {
  "use strict";

-  exports["default"] = foo;
-  exports["default"] = 42;
-  exports["default"] = {};
-  exports["default"] = [];
-  exports["default"] = foo;
-  exports["default"] = function () {};
+  module.exports = foo;
+  module.exports = 42;
+  module.exports = {};
+  module.exports = [];
+  module.exports = foo;
+  module.exports = function () {};

-  exports["default"] = function () {};
+  module.exports = function () {};

  function foo() {}
  var Foo = function Foo() {};

-  exports["default"] = Foo;
-});
+  module.exports = Foo;
+});
--- a/test/fixtures/transformation/es6-modules-umd/exports-from/expected.js
+++ b/test/fixtures/transformation/es6-modules-umd/exports-from/expected.js
@@ -7,10 +7,6 @@
 })(function (exports, _foo) {
  "use strict";

-  var _interopRequire = function (obj) {
-    return obj && (obj["default"] || obj);
-  };
-
  var _interopRequireWildcard = function (obj) {
    return obj && obj.constructor === Object ? obj : {
      "default": obj
@@ -27,11 +23,11 @@

  _exportsWildcard(_interopRequireWildcard(_foo));

-  exports.foo = _interopRequire(_foo);
-  exports.foo = _interopRequire(_foo);
-  exports.bar = _interopRequire(_foo);
-  exports.bar = _interopRequire(_foo);
-  exports["default"] = _interopRequire(_foo);
-  exports["default"] = _interopRequire(_foo);
-  exports.bar = _interopRequire(_foo);
-});
+  exports.foo = _foo.foo;
+  exports.foo = _foo.foo;
+  exports.bar = _foo.bar;
+  exports.bar = _foo.foo;
+  exports["default"] = _foo.foo;
+  exports["default"] = _foo.foo;
+  exports.bar = _foo.bar;
+});
--- a/test/fixtures/transformation/es6-modules-umd/imports-default/actual.js
+++ b/test/fixtures/transformation/es6-modules-umd/imports-default/actual.js
@@ -1,2 +1,2 @@
 import foo from "foo";
-import {default as foo} from "foo";
+import {default as foo2} from "foo";
--- a/test/fixtures/transformation/es6-modules-umd/imports-default/expected.js
+++ b/test/fixtures/transformation/es6-modules-umd/imports-default/expected.js
@@ -13,5 +13,5 @@

  var foo = _interopRequire(_foo);

-  var foo = _interopRequire(_foo);
-});
+  var foo2 = _interopRequire(_foo);
+});
--- a/test/fixtures/transformation/es6-modules-umd/imports-named/actual.js
+++ b/test/fixtures/transformation/es6-modules-umd/imports-named/actual.js
@@ -1,4 +1,4 @@
 import {bar} from "foo";
-import {bar, baz} from "foo";
-import {bar as baz} from "foo";
-import {bar as baz, xyz} from "foo";
+import {bar2, baz} from "foo";
+import {bar as baz2} from "foo";
+import {bar as baz3, xyz} from "foo";
--- a/test/fixtures/transformation/es6-modules-umd/imports-named/expected.js
+++ b/test/fixtures/transformation/es6-modules-umd/imports-named/expected.js
@@ -8,9 +8,9 @@
  "use strict";

  var bar = _foo.bar;
-  var bar = _foo.bar;
+  var bar2 = _foo.bar2;
  var baz = _foo.baz;
-  var baz = _foo.bar;
-  var baz = _foo.bar;
+  var baz2 = _foo.bar;
+  var baz3 = _foo.bar;
  var xyz = _foo.xyz;
-});
+});
--- a/test/fixtures/transformation/es6-modules-umd/overview/actual.js
+++ b/test/fixtures/transformation/es6-modules-umd/overview/actual.js
@@ -2,11 +2,11 @@ import "foo";
 import "foo-bar";
 import "./directory/foo-bar";
 import foo from "foo";
-import * as foo from "foo";
+import * as foo2 from "foo";
 import {bar} from "foo";
-import {foo as bar} from "foo";
+import {foo as bar2} from "foo";

 export {test};
-export var test = 5;
+export var test2 = 5;

 export default test;
--- a/test/fixtures/transformation/es6-modules-umd/overview/expected.js
+++ b/test/fixtures/transformation/es6-modules-umd/overview/expected.js
@@ -1,10 +1,10 @@
 (function (factory) {
  if (typeof define === "function" && define.amd) {
-    define(["exports", "foo", "foo-bar", "./directory/foo-bar"], factory);
-  } else if (typeof exports !== "undefined") {
-    factory(exports, require("foo"), require("foo-bar"), require("./directory/foo-bar"));
+    define(["exports", "module", "foo", "foo-bar", "./directory/foo-bar"], factory);
+  } else if (typeof exports !== "undefined" && typeof module !== "undefined") {
+    factory(exports, module, require("foo"), require("foo-bar"), require("./directory/foo-bar"));
  }
-})(function (exports, _foo, _fooBar, _directoryFooBar) {
+})(function (exports, module, _foo, _fooBar, _directoryFooBar) {
  "use strict";

  var _interopRequire = function (obj) {
@@ -13,11 +13,11 @@

  var foo = _interopRequire(_foo);

-  var foo = _foo;
+  var foo2 = _foo;
  var bar = _foo.bar;
-  var bar = _foo.foo;
+  var bar2 = _foo.foo;
  exports.test = test;
-  var test = exports.test = 5;
+  var test2 = exports.test2 = 5;

-  exports["default"] = test;
-});
+  module.exports = test;
+});
--- a/test/fixtures/transformation/es6-rest-parameters/arrow-functions/expected.js
+++ b/test/fixtures/transformation/es6-rest-parameters/arrow-functions/expected.js
@@ -4,6 +4,6 @@ var concat = function () {
  var arrs = [];

  for (var _key = 0; _key < arguments.length; _key++) {
-    arrs[$__0] = arguments[_key];
+    arrs[_key] = arguments[_key];
  }
 };
--- a/test/fixtures/transformation/es6-rest-parameters/multiple/expected.js
+++ b/test/fixtures/transformation/es6-rest-parameters/multiple/expected.js
@@ -4,7 +4,7 @@ var t = function (f) {
  var items = [];

  for (var _key = 1; _key < arguments.length; _key++) {
-    items[$__0] = arguments[_key];
+    items[_key - 1] = arguments[_key];
  }
 };

@@ -12,6 +12,6 @@ function t(f) {
  var items = [];

  for (var _key2 = 1; _key2 < arguments.length; _key2++) {
-    items[$__0] = arguments[_key2];
+    items[_key2 - 1] = arguments[_key2];
  }
 }
--- a/test/fixtures/transformation/es6-rest-parameters/single/expected.js
+++ b/test/fixtures/transformation/es6-rest-parameters/single/expected.js
@@ -4,7 +4,7 @@ var t = function () {
  var items = [];

  for (var _key = 0; _key < arguments.length; _key++) {
-    items[$__0] = arguments[_key];
+    items[_key] = arguments[_key];
  }
 };

@@ -12,6 +12,6 @@ function t() {
  var items = [];

  for (var _key2 = 0; _key2 < arguments.length; _key2++) {
-    items[$__0] = arguments[_key2];
+    items[_key2] = arguments[_key2];
  }
 }
--- a/test/fixtures/transformation/es7-object-spread/assignment/expected.js
+++ b/test/fixtures/transformation/es7-object-spread/assignment/expected.js
@@ -1,3 +1,14 @@
 "use strict";

-z = Object.assign({ x: x }, y);
+var _extends = function (target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i];
+    for (var key in source) {
+      target[key] = source[key];
+    }
+  }
+
+  return target;
+};
+
+z = _extends({ x: x }, y);
--- a/test/fixtures/transformation/es7-object-spread/expression/expected.js
+++ b/test/fixtures/transformation/es7-object-spread/expression/expected.js
@@ -1,3 +1,14 @@
 "use strict";

-Object.assign({ x: x }, y, { a: a }, b, { c: c });
+var _extends = function (target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i];
+    for (var key in source) {
+      target[key] = source[key];
+    }
+  }
+
+  return target;
+};
+
+_extends({ x: x }, y, { a: a }, b, { c: c });
--- a/test/fixtures/transformation/es7-object-spread/variable-declaration/expected.js
+++ b/test/fixtures/transformation/es7-object-spread/variable-declaration/expected.js
@@ -1,3 +1,14 @@
 "use strict";

-var z = Object.assign({}, x);
+var _extends = function (target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i];
+    for (var key in source) {
+      target[key] = source[key];
+    }
+  }
+
+  return target;
+};
+
+var z = _extends({}, x);
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Sebastian McKenzie	0528560d81	v2.7.3	2015-01-07 22:55:09 +11:00
Sebastian McKenzie	4362ba93de	fix verison number in changelog	2015-01-07 22:53:02 +11:00
Sebastian McKenzie	ca12e87370	remove unused variables	2015-01-07 22:50:24 +11:00
Sebastian McKenzie	ebaa735adc	add 2.7.2 changelog	2015-01-07 22:49:21 +11:00
Sebastian McKenzie	62e406a6fe	fix better jsx output	2015-01-07 22:47:37 +11:00
Sebastian McKenzie	0d45a8975c	normalise module name paths	2015-01-07 22:43:05 +11:00
Sebastian McKenzie	8f64fe2332	add extends helper instead of using Object.assign	2015-01-07 22:42:26 +11:00
Sebastian McKenzie	a8a7587c1f	better jsx output #369	2015-01-07 22:42:03 +11:00
Sebastian McKenzie	7736fa11f2	v2.7.2	2015-01-07 18:38:00 +11:00
Sebastian McKenzie	d203924541	disable module import reassignment tests	2015-01-07 18:35:36 +11:00
Sebastian McKenzie	cd23e500a1	add back specNoForInOfAssignment transformer	2015-01-07 18:30:48 +11:00
Sebastian McKenzie	bf24a0d6b5	temporarily disable module collission detections	2015-01-07 18:30:33 +11:00
Sebastian McKenzie	279d1affea	v2.7.1	2015-01-07 14:15:16 +11:00
Sebastian McKenzie	2a1e012240	upgrade core-js	2015-01-07 14:12:21 +11:00
Sebastian McKenzie	a307a961a6	add istanbul to travis test	2015-01-07 14:10:47 +11:00
Sebastian McKenzie	fe5b1dc542	add reactCompat default to file opts	2015-01-07 14:10:37 +11:00
Sebastian McKenzie	f057347ae9	add version to browser and node build	2015-01-07 14:10:27 +11:00
Sebastian McKenzie	98f2287267	v2.7.0	2015-01-07 14:01:44 +11:00
Sebastian McKenzie	e60e0e0b0e	disable timeout on test262 tests	2015-01-07 13:58:47 +11:00
Sebastian McKenzie	81fb8647b6	fixing linting errors	2015-01-07 13:58:41 +11:00
Sebastian McKenzie	e8387c7de5	add 2.7.0 changelog	2015-01-07 13:57:04 +11:00
Sebastian McKenzie	655196f3ce	Merge pull request #410 from amasad/master Add support for React pre v0.12 transform	2015-01-07 13:54:23 +11:00
Amjad Masad	eef371c3df	Add support for React pre v0.12 transform This uses an option `reactCompat` to emit code that works with React pre v0.12	2015-01-06 21:49:35 -05:00
Sebastian McKenzie	a3d21f02c6	just call mocha instead of test-simple	2015-01-07 13:44:05 +11:00
Sebastian McKenzie	ad4386c0ed	make test-travis use test-simple and remove test-spec task	2015-01-07 13:33:31 +11:00
Sebastian McKenzie	3c82a61af1	better lazy error description test262	2015-01-07 13:33:19 +11:00
Sebastian McKenzie	3c154f9f6d	better test262 test aliases	2015-01-07 13:19:53 +11:00
Sebastian McKenzie	22c972e85b	add bootstrap to travis test	2015-01-07 13:14:45 +11:00
Sebastian McKenzie	6d7e14fb2b	fix test262 loc check	2015-01-07 13:14:08 +11:00
Sebastian McKenzie	9287449372	add test-all make command	2015-01-07 13:11:25 +11:00
Sebastian McKenzie	44a35400f5	better output messages for missing vendors	2015-01-07 13:10:12 +11:00
Sebastian McKenzie	2305e2447f	fix hasOwnProperty object lookup conflict	2015-01-07 13:08:20 +11:00
Sebastian McKenzie	c420d1ffc3	add test262	2015-01-07 13:08:06 +11:00
Sebastian McKenzie	fa42b076a7	remove benchmarks	2015-01-07 11:47:09 +11:00
Sebastian McKenzie	0d23c1cfdb	add todo for module collisions	2015-01-07 09:56:17 +11:00
Sebastian McKenzie	0dafdd6969	better support for import collision checking - todo: check exports for collisions	2015-01-07 09:08:34 +11:00
Sebastian McKenzie	a9af8d39a2	add member expression reassign test	2015-01-07 08:00:55 +11:00
Sebastian McKenzie	1cc606d4d0	make import reassignment illegal @eventualbuddha	2015-01-07 07:58:04 +11:00
Sebastian McKenzie	2a09c0a5a5	fix import specifier and export specifier keys	2015-01-07 07:57:36 +11:00
Sebastian McKenzie	92359520cd	Merge pull request #379 from webpro/amd-port-interop Port AMD interop	2015-01-07 07:52:44 +11:00
Lars Kappert	50e5bd4680	Merge remote-tracking branch 'origin/master' into amd-port-interop Conflicts: test/fixtures/transformation/es6-modules-amd/exports-default/expected.js test/fixtures/transformation/es6-modules-amd/overview/expected.js test/fixtures/transformation/es6-modules-umd/exports-default/expected.js test/fixtures/transformation/es6-modules-umd/overview/expected.js	2015-01-06 20:21:00 +01:00
Sebastian McKenzie	64ef26a937	v2.6.3	2015-01-07 00:33:13 +11:00
Sebastian McKenzie	bfd6ffe471	add 2.6.3 changelog	2015-01-07 00:31:37 +11:00
Sebastian McKenzie	8c1760bea2	fix faulty export default source detection - fixes #406	2015-01-07 00:30:41 +11:00
Sebastian McKenzie	bdb8f87480	move docs to 6to5.github.io repo	2015-01-06 22:43:36 +11:00
Sebastian McKenzie	7f6bc54920	capitalise faq description	2015-01-06 22:40:03 +11:00
Sebastian McKenzie	b6af2f826d	es6-transpiler doesn't do sourcemaps - closes 6to5/6to5.github.io#9	2015-01-06 22:34:17 +11:00
Sebastian McKenzie	7455b6d9b9	update faq copytext	2015-01-06 22:33:23 +11:00
Sebastian McKenzie	0d2e876178	doc/faq: pretty -> quite	2015-01-06 22:29:06 +11:00
Sebastian McKenzie	57ce1b201d	better faq answer	2015-01-06 22:27:41 +11:00
Sebastian McKenzie	5f56da457c	remove old spec tests	2015-01-06 22:19:34 +11:00
Sebastian McKenzie	ed988dc2bb	is t.isValidIdentifier instead of esutils.keyword.isKeywordES6	2015-01-06 22:17:32 +11:00
Sebastian McKenzie	2c471968ea	remove specBlockHoistFunctions and specNoForInOfAssignment	2015-01-06 22:17:15 +11:00
Sebastian McKenzie	fd1a91bf9c	add transformer docs	2015-01-06 22:16:48 +11:00
Sebastian McKenzie	9e7de5ad2e	add faq docs	2015-01-06 22:16:43 +11:00
Sebastian McKenzie	06927288ba	remove this shorthand example from playground	2015-01-06 22:15:44 +11:00
Sebastian McKenzie	9342aee6bd	fix up documentation links	2015-01-06 22:15:01 +11:00
Sebastian McKenzie	4f5669f53c	v2.6.2	2015-01-06 20:16:33 +11:00
Sebastian McKenzie	262fd995da	add 2.6.2 changelog	2015-01-06 20:15:58 +11:00
Sebastian McKenzie	1696f77980	fix rest parameter keys when on functions with params	2015-01-06 20:15:10 +11:00
Lars Kappert	dfa51954b8	Use unaryExpression for typeof	2015-01-06 10:12:08 +01:00
Lars Kappert	216b8c2fd1	Revert "Add types.TypeOfExpression" This reverts commit `520dd7e947`.	2015-01-06 10:05:44 +01:00
Sebastian McKenzie	ca2cbb02f1	v2.6.1	2015-01-06 20:04:54 +11:00
Sebastian McKenzie	b72427cdd0	fix rest parameter tests	2015-01-06 20:04:04 +11:00
Sebastian McKenzie	44e9812ad4	fix rest parameter arguments key - closes #405	2015-01-06 20:02:56 +11:00
Sebastian McKenzie	b7814e5e24	add documentation on optional protoToAssign transformer	2015-01-06 19:58:19 +11:00
Sebastian McKenzie	ec67a83326	add 3.0.0 breaking notes	2015-01-06 18:55:03 +11:00
Sebastian McKenzie	6a560cea25	Merge pull request #404 from thejameskyle/docs Add new documentation	2015-01-06 18:44:14 +11:00
James Kyle	46f9ed7d74	Add new documentation	2015-01-05 23:27:46 -08:00
Sebastian McKenzie	92366dfc7b	move incorrect tag in bug fix to internal	2015-01-06 18:08:42 +11:00
Sebastian McKenzie	f520a46175	better ordering of 2.6.0 changelog groups	2015-01-06 18:08:01 +11:00
Sebastian McKenzie	88bec1196b	group 2.6.0 changelog	2015-01-06 18:07:10 +11:00
Sebastian McKenzie	ff0098f3f3	add additional 2.6.0 note	2015-01-06 17:54:34 +11:00
Sebastian McKenzie	d01d7722f4	add dynamic imports note to changelog	2015-01-06 17:49:32 +11:00
Lars Kappert	abc90778e8	Test for exportIdentifier before building exportDeclaration	2015-01-05 21:17:12 +01:00
Lars Kappert	56f1683f06	Also test for "module" identifier if needed	2015-01-05 14:57:52 +01:00
Lars Kappert	520dd7e947	Add types.TypeOfExpression	2015-01-05 14:51:50 +01:00
Lars Kappert	17ce21509d	Move exports identifier from UMD template to commonArgs	2015-01-04 12:59:25 +01:00
Lars Kappert	a4c8895dc3	Conditionally pass "module" arg to AMD/UMD factory	2015-01-04 12:58:52 +01:00
Lars Kappert	af4009694a	Simplify AMD export declaration fn to re-use CommonJS one	2015-01-04 12:53:17 +01:00
Lars Kappert	941a8cc5ea	Remove unused templates	2015-01-04 12:51:34 +01:00
Lars Kappert	359c4e8786	Use `module.exports` in expectations	2015-01-04 12:51:19 +01:00
Lars Kappert	7ac98c1532	Add custom export declaration fn for AMD modules	2015-01-04 11:46:28 +01:00
Lars Kappert	61c3e0a3de	Modify test expectations	2015-01-04 11:45:09 +01:00