don't perform DCE on single references nested inside the binding initializer - fixes #1546

2015-05-15 18:48:05 +01:00
parent ff12046009
commit 30e3908484
1 changed files with 4 additions and 0 deletions
--- a/src/babel/transformation/transformers/minification/dead-code-elimination.js
+++ b/src/babel/transformation/transformers/minification/dead-code-elimination.js
@@ -33,6 +33,10 @@ export function ReferencedIdentifier(node, parent, scope) {
  }
  if (!replacement) return;

+  if (this.findParent((node) => replacement)) {
+    return;
+  }
+
  t.toExpression(replacement);
  scope.removeBinding(node.name);
  binding.path.remove();