@babel/plugin-transform-destructuring - npm Package Compare versions

Comparing version 7.17.12 to 7.18.0

lib/index.js

@@ -8,2 +8,18 @@ 'use strict';
 
+function unshiftForXStatementBody(statementPath, newStatements) {
+  statementPath.ensureBlock();
+  const {
+    scope,
+    node
+  } = statementPath;
+  const bodyScopeBindings = statementPath.get("body").scope.bindings;
+  const hasShadowedBlockScopedBindings = Object.keys(bodyScopeBindings).some(name => scope.hasBinding(name));
+
+  if (hasShadowedBlockScopedBindings) {
+    node.body = core.types.blockStatement([...newStatements, node.body]);
+  } else {
+    node.body.body.unshift(...newStatements);
+  }
+}
+
 function hasArrayRest(pattern) {
@@ -425,3 +441,4 @@ return pattern.elements.some(elem => core.types.isRestElement(elem));
     node,
-    scope
+    scope,
+    parentPath
   } = path;
@@ -441,3 +458,3 @@ const nodes = [];
 
-  if (path.isCompletionRecord() || !path.parentPath.isExpressionStatement()) {
+  if (!parentPath.isExpressionStatement() && !parentPath.isSequenceExpression() || path.isCompletionRecord()) {
     ref = scope.generateUidIdentifierBasedOnNode(node.right, "ref");
@@ -454,3 +471,3 @@ nodes.push(core.types.variableDeclaration("var", [core.types.variableDeclarator(ref, node.right)]));
   if (ref) {
-    if (path.parentPath.isArrowFunctionExpression()) {
+    if (parentPath.isArrowFunctionExpression()) {
       path.replaceWith(core.types.blockStatement([]));
@@ -517,8 +534,10 @@ nodes.push(core.types.returnStatement(core.types.cloneNode(ref)));
           const statementBody = node.body.body;
+          const nodes = [];
 
           if (statementBody.length === 0 && path.isCompletionRecord()) {
-            statementBody.unshift(core.types.expressionStatement(scope.buildUndefinedNode()));
+            nodes.unshift(core.types.expressionStatement(scope.buildUndefinedNode()));
           }
 
-          statementBody.unshift(core.types.expressionStatement(core.types.assignmentExpression("=", left, temp)));
+          nodes.unshift(core.types.expressionStatement(core.types.assignmentExpression("=", left, core.types.cloneNode(temp))));
+          unshiftForXStatementBody(path, nodes);
           scope.crawl();
@@ -545,5 +564,3 @@ return;
         destructuring.init(pattern, key);
-        path.ensureBlock();
-        const block = node.body;
-        block.body = nodes.concat(block.body);
+        unshiftForXStatementBody(path, nodes);
         scope.crawl();
@@ -596,3 +613,5 @@ },
 
+exports.buildObjectExcludingKeys = buildObjectExcludingKeys;
 exports["default"] = index;
+exports.unshiftForXStatementBody = unshiftForXStatementBody;
 //# sourceMappingURL=index.js.map

package.json

 {
   "name": "@babel/plugin-transform-destructuring",
-  "version": "7.17.12",
+  "version": "7.18.0",
   "description": "Compile ES2015 destructuring to ES5",
@@ -26,5 +26,5 @@ "repository": {
   "devDependencies": {
-    "@babel/core": "^7.17.12",
+    "@babel/core": "^7.18.0",
     "@babel/helper-plugin-test-runner": "^7.16.7",
-    "@babel/traverse": "^7.17.12"
+    "@babel/traverse": "^7.18.0"
   },
@@ -31,0 +31,0 @@ "engines": {

No alert changes

Improved metrics

Total package byte prevSize

78674

increased by3.76%

Lines of code

537

increased by3.27%

No dependency changes