logical-assignment: Do not assign names to anonymous functions (#11370)

2020-05-05 09:00:41 -05:00
parent 812f3750c8
commit a8061ae7d8
16 changed files with 84 additions and 1 deletions
--- a/packages/babel-plugin-proposal-logical-assignment-operators/src/index.js
+++ b/packages/babel-plugin-proposal-logical-assignment-operators/src/index.js
@@ -39,11 +39,16 @@ export default declare(api => {
          }
        }

+        const isRHSAnonymousFunction = t.isFunction(right, { id: null });
+        const rightExpression = isRHSAnonymousFunction
+          ? t.sequenceExpression([t.numericLiteral(0), right])
+          : right;
+
        path.replaceWith(
          t.logicalExpression(
            operator.slice(0, -1),
            lhs,
-            t.assignmentExpression("=", left, right),
+            t.assignmentExpression("=", left, rightExpression),
          ),
        );
      },