v1.10.6

.gitignore

@@ -4,5 +4,6 @@ test/tmp
 *.log
 *.cache
 /templates.json
+/browser.js
 coverage
 dist

Makefile

@@ -35,7 +35,7 @@ build:
 
 	node bin/cache-templates
 
-	browserify lib/6to5/transform.js -s to5 >dist/6to5.js
+	browserify lib/6to5/browser.js -s to5 >dist/6to5.js
 	uglifyjs dist/6to5.js >dist/6to5.min.js
 
 	rm -rf templates.json
@@ -45,6 +45,9 @@ publish:
 
 	make test
 
+	make build
+	cp dist/6to5.js browser.js
+
 	node bin/cache-templates
 	test -f templates.json
 
@@ -54,4 +57,4 @@ publish:
 
 	git push --follow-tags
 
-	rm -rf templates.json
+	rm -rf templates.json browser.js

benchmark/index.js

@@ -140,9 +140,9 @@ var sizeBenchmark = function (code, loc, name, compiler) {
   });
   if (!output) return;
 
-  go(function () {
-    return uglify.minify(output, { fromString: true }).code;
-  }, uglifyTitle);
+  //go(function () {
+  //  return uglify.minify(output, { fromString: true }).code;
+  //}, uglifyTitle);
 };
 
 //

lib/6to5/browser.js

@@ -0,0 +1,3 @@
+var transform = require("./transform");
+
+module.exports = transform;

lib/6to5/file.js

@@ -84,7 +84,8 @@ File.prototype.parse = function (code) {
   code = this.parseShebang(code);
 
   return util.parse(this.opts, code, function (tree) {
-    return self.transform(tree);
+    self.transform(tree);
+    return self.generate();
   });
 };
 
@@ -96,8 +97,6 @@ File.prototype.transform = function (ast) {
   _.each(transform.transformers, function (transformer) {
     transformer.transform(self);
   });
-
-  return this.generate();
 };
 
 File.prototype.generate = function () {

lib/6to5/transform.js

@@ -71,7 +71,7 @@ transform.test = function (task, assert) {
 
 transform._ensureTransformerNames = function (type, keys) {
   _.each(keys, function (key) {
-    if (key[0] === "_" || !_.has(transform.transformers, key)) {
+    if (!_.has(transform.transformers, key)) {
       throw new ReferenceError("unknown transformer " + key + " specified in " + type);
     }
   });

lib/6to5/transformers/destructuring.js

@@ -13,11 +13,15 @@ var buildVariableAssign = function (kind, id, init) {
   }
 };
 
-var push = function (kind, nodes, pattern, parentId) {
-  if (pattern.type === "ObjectPattern") {
-    pushObjectPattern(kind, nodes, pattern, parentId);
-  } else if (pattern.type === "ArrayPattern") {
-    pushArrayPattern(kind, nodes, pattern, parentId);
+var push = function (kind, nodes, elem, parentId) {
+  if (elem.type === "ObjectPattern") {
+    pushObjectPattern(kind, nodes, elem, parentId);
+  } else if (elem.type === "ArrayPattern") {
+    pushArrayPattern(kind, nodes, elem, parentId);
+  } else if (elem.type === "MemberExpression") {
+    nodes.push(buildVariableAssign(false, elem, parentId));
+  } else {
+    nodes.push(buildVariableAssign(kind, elem, parentId));
   }
 };
 
@@ -39,12 +43,7 @@ var pushArrayPattern = function (kind, nodes, pattern, parentId) {
     if (!elem) return;
 
     var newPatternId = b.memberExpression(parentId, b.literal(i), true);
-
-    if (elem.type === "Identifier") {
-      nodes.push(buildVariableAssign(kind, elem, newPatternId));
-    } else {
-      push(kind, nodes, elem, newPatternId);
-    }
+    push(kind, nodes, elem, newPatternId);
   });
 };
 

lib/6to5/transformers/let-scoping.js

@@ -42,9 +42,11 @@ exports.VariableDeclaration = function (node, parent, file) {
         if (node.type === "FunctionDeclaration") {
           throw new Error("`FunctionDeclaration`s that use `let` and `constant` references aren't allowed outside of the root scope");
         } else {
-          return b.callExpression(b.functionExpression(null, letReferences, b.blockStatement([
+          var func = b.functionExpression(null, letReferences, b.blockStatement([
             b.returnStatement(node)
-          ])), letReferences);
+          ]));
+          func._aliasFunction = true;
+          return b.callExpression(func, letReferences);
         }
       } else {
         return false;

lib/6to5/util.js

@@ -275,7 +275,7 @@ exports.parse = function (opts, code, callback) {
         message += frame;
       }
 
-      err.stack = err.stack.replace(err.message, message);
+      err.stack   = err.stack.replace(err.message, message);
       err.message = message;
     }
 

package.json

@@ -1,7 +1,7 @@
 {
   "name": "6to5",
   "description": "Turn ES6 code into readable vanilla ES5 with source maps",
-  "version": "1.10.2",
+  "version": "1.10.6",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",
   "homepage": "https://github.com/sebmck/6to5",
   "repository": {

test/fixtures/transformation/destructuring/member-expression/actual.js

@@ -0,0 +1 @@
+[this.foo, this.bar] = [1, 2];

test/fixtures/transformation/destructuring/member-expression/expected.js

@@ -0,0 +1,4 @@
+"use strict";
+var _ref = [1, 2];
+this.foo = _ref[0];
+this.bar = _ref[1];