@babel/plugin-proposal-optional-chaining - npm Package Compare versions

Comparing version 7.11.0 to 7.12.0

lib/index.js

@@ -29,2 +29,23 @@ "use strict";
 
+  function needsMemoize(path) {
+    let optionalPath = path;
+    const {
+      scope
+    } = path;
+
+    while (optionalPath.isOptionalMemberExpression() || optionalPath.isOptionalCallExpression()) {
+      const {
+        node
+      } = optionalPath;
+      const childKey = optionalPath.isOptionalMemberExpression() ? "object" : "callee";
+      const childPath = (0, _helperSkipTransparentExpressionWrappers.skipTransparentExprWrappers)(optionalPath.get(childKey));
+
+      if (node.optional) {
+        return !scope.isStatic(childPath.node);
+      }
+
+      optionalPath = childPath;
+    }
+  }
+
   return {
@@ -50,2 +71,7 @@ name: "proposal-optional-chaining",
 
+        if (scope.path.isPattern() && needsMemoize(optionalPath)) {
+          path.replaceWith(_core.template.ast`(() => ${path.node})()`);
+          return;
+        }
+
         while (optionalPath.isOptionalMemberExpression() || optionalPath.isOptionalCallExpression()) {
@@ -52,0 +78,0 @@ const {

package.json

 {
   "name": "@babel/plugin-proposal-optional-chaining",
-  "version": "7.11.0",
+  "version": "7.12.0",
   "description": "Transform optional chaining operators into a series of nil checks",
@@ -27,6 +27,6 @@ "repository": {
   "devDependencies": {
-    "@babel/core": "^7.11.0",
+    "@babel/core": "^7.12.0",
     "@babel/helper-plugin-test-runner": "^7.10.4",
     "@babel/plugin-transform-block-scoping": "^7.10.4"
   }
-}
+}

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Improved metrics

Total package byte prevSize

9381

increased by8.83%

Lines of code

148

increased by16.54%

No dependency changes