perf: always return void 0 as undefined node

babel · Jul 19, 2019 · ca44286 · ca44286
1 parent a0cb7b1
commit ca44286
Showing 1 changed file with 1 addition and 6 deletions.
diff --git a/packages/babel-traverse/src/scope/index.js b/packages/babel-traverse/src/scope/index.js
@@ -490,12 +490,7 @@ export default class Scope {
   }
 
   buildUndefinedNode() {
-    if (this.hasBinding("undefined")) {
-      return t.unaryExpression("void", t.numericLiteral(0), true);
-    } else {
-      // eslint-disable-next-line @babel/development/no-undefined-identifier
-      return t.identifier("undefined");
-    }
+    return t.unaryExpression("void", t.numericLiteral(0), true);
   }
 
   registerConstantViolation(path: NodePath) {