babel-plugin-transform-es2015-parameters - npm Package Compare versions

Comparing version 6.3.13 to 6.3.18

lib/rest.js

@@ -21,2 +21,4 @@ "use strict";
 
+var loadRest = _babelTemplate2["default"]("\n  ARGUMENTS.length <= KEY || ARGUMENTS[KEY] === undefined ? undefined : ARGUMENTS[KEY]\n");
+
 var memberExpressionOptimisationVisitor = {
@@ -97,18 +99,2 @@ Scope: function Scope(path, state) {
 
-function optimiseMemberExpression(parent, offset) {
-  if (offset === 0) return;
-
-  var newExpr = undefined;
-  var prop = parent.property;
-
-  if (t.isLiteral(prop)) {
-    prop.value += offset;
-    prop.raw = String(prop.value);
-  } else {
-    // // UnaryExpression, BinaryExpression
-    newExpr = t.binaryExpression("+", prop, t.numericLiteral(offset));
-    parent.property = newExpr;
-  }
-}
-
 function hasRest(node) {
@@ -133,12 +119,22 @@ return t.isRestElement(node.params[node.params.length - 1]);
 
-    // support patterns
-    if (t.isPattern(rest)) {
-      var pattern = rest;
-      rest = scope.generateUidIdentifier("ref");
+    function optimiseCandidate(parent, parentPath, offset) {
+      if (t.isReturnStatement(parentPath.parent) || t.isIdentifier(parentPath.parent.id)) {
+        parentPath.replaceWith(loadRest({
+          ARGUMENTS: argsId,
+          KEY: t.numericLiteral(parent.property.value + offset)
+        }));
+      } else {
+        if (offset === 0) return;
+        var newExpr = undefined;
+        var prop = parent.property;
 
-      var declar = t.variableDeclaration("let", pattern.elements.map(function (elem, index) {
-        var accessExpr = t.memberExpression(rest, t.numericLiteral(index), true);
-        return t.variableDeclarator(elem, accessExpr);
-      }));
-      node.body.body.unshift(declar);
+        if (t.isLiteral(prop)) {
+          prop.value += offset;
+          prop.raw = String(prop.value);
+        } else {
+          // UnaryExpression, BinaryExpression
+          newExpr = t.binaryExpression("+", prop, t.numericLiteral(offset));
+          parent.property = newExpr;
+        }
+      }
     }
@@ -184,5 +180,3 @@
           candidate.replaceWith(argsId);
-          if (candidate.parentPath.isMemberExpression()) {
-            optimiseMemberExpression(candidate.parent, state.offset);
-          }
+          optimiseCandidate(candidate.parent, candidate.parentPath, state.offset);
         }
@@ -198,4 +192,2 @@ }
 
-    //
-
     var start = t.numericLiteral(node.params.length);
@@ -202,0 +194,0 @@ var key = scope.generateUidIdentifier("key");

package.json

 {
   "name": "babel-plugin-transform-es2015-parameters",
-  "version": "6.3.13",
+  "version": "6.3.18",
   "description": "Compile ES2015 default and rest parameters to ES5",
@@ -13,3 +13,3 @@ "repository": "https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-es2015-parameters",
     "babel-template": "^6.3.13",
-    "babel-types": "^6.3.13",
+    "babel-types": "^6.3.18",
     "babel-runtime": "^5.0.0"
@@ -16,0 +16,0 @@ },

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Total package byte prevSize

16416

decreased by-0.04%

Lines of code

387

decreased by-1.28%

Number of medium supply chain risk alerts

1

increased byInfinity%

Dependency changes

• Updatedbabel-types@^6.3.18