es6-spread - npm Package Compare versions

Comparing version 0.0.5 to 0.0.6

bower.json

 {
   "name": "es6-spread",
-  "version": "0.0.5",
+  "version": "0.0.6",
   "homepage": "https://github.com/square/es6-spread",
@@ -5,0 +5,0 @@ "authors": [

lib/index.js

@@ -115,5 +115,5 @@ /* jshint node:true, undef:true, unused:true */
       arrays.push(
-        util.callArraySlice(
+        accumulateIteratorValues(
           scope.getGlobalScope(),
-          element.argument
+          util.callGetIterator(scope.getGlobalScope(), element.argument)
         )
@@ -149,2 +149,88 @@ );
 /**
+ * var accumulateIteratorValues = function(iterator) {
+ *   var result = [];
+ *   for (var $__0 = iterator, $__1; !($__1 = $__0.next()).done; ) {
+ *     result.push($__1.value);
+ *   }
+ *   return result;
+ * };
+ *
+ * @private
+ * @param {ast-types.Scope}
+ * @param {ast-types.Expression}
+ */
+function accumulateIteratorValues(scope, iterator) {
+  var accumulate = util.injectShared(
+    scope,
+    'accumulateIteratorValues',
+    function() {
+      var iteratorId = b.identifier('iterator');
+      var nextId = b.identifier('next');
+      var resultId = b.identifier('result');
+      var itemId = b.identifier('item');
+      var doneId = b.identifier('done');
+      var valueId = b.identifier('value');
+
+      return b.functionExpression(
+        null,
+        [iteratorId],
+        b.blockStatement([
+          b.variableDeclaration(
+            'var',
+            [b.variableDeclarator(
+              resultId,
+              b.arrayExpression([])
+            )]
+          ),
+          b.forStatement(
+            b.variableDeclaration(
+              'var',
+              [b.variableDeclarator(itemId, null)]
+            ),
+            b.unaryExpression(
+              '!',
+              b.memberExpression(
+                b.assignmentExpression(
+                  '=',
+                  itemId,
+                  b.callExpression(
+                    b.memberExpression(
+                      iteratorId,
+                      nextId,
+                      false
+                    ),
+                    []
+                  )
+                ),
+                doneId,
+                false
+              )
+            ),
+            null,
+            b.expressionStatement(b.callExpression(
+              b.memberExpression(
+                resultId,
+                b.identifier('push'),
+                false
+              ),
+              [b.memberExpression(
+                itemId,
+                valueId,
+                false
+              )]
+            ))
+          ),
+          b.returnStatement(resultId)
+        ])
+      );
+    }
+  );
+
+  return b.callExpression(
+    accumulate,
+    [iterator]
+  );
+}
+
+/**
  * Transform an Esprima AST generated from ES6 by replacing all spread elements
@@ -151,0 +237,0 @@ * with an equivalent approach in ES5.

package.json

 {
   "name": "es6-spread",
-  "version": "0.0.5",
+  "version": "0.0.6",
   "description": "ES6 spread compiled to ES5.",
@@ -18,3 +18,3 @@ "main": "lib/index.js",
     "through": "~2.3.4",
-    "ast-util": "^0.0.5"
+    "ast-util": "^0.1.0"
   },
@@ -21,0 +21,0 @@ "devDependencies": {

README.md

 # es6-spread
 
 Compiles JavaScript written using ES6 spread syntax to use the equivalent ES5
-code. For example, this:
+code. For example, this spreads `args` out as positional arguments to `f`:
 
@@ -12,10 +12,2 @@ ```js
 
-compiles to this:
-
-```js
-function f(x, y, z) { }
-var args = [0, 1, 2];
-f.apply(null, args);
-```
-
 This project is part of [esnext][esnext], a project to compile the syntax of
@@ -22,0 +14,0 @@ the next version of JavaScript to today's JavaScript environments.

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Improved metrics

Total package byte prevSize

15155

increased by19.88%

Number of package files

16

increased by6.67%

Lines of code

410

increased by32.69%

Worsened metrics

Number of lines in readme file

87

decreased by-8.42%

Dependency changes

• + Addedast-util@0.1.2(transitive)

• - Removedast-util@0.0.5(transitive)

• Updatedast-util@^0.1.0