Dead code injection transformer ignores PrivateIdentifier nodes (#1057)

src/enums/node/NodeType.ts

@@ -40,6 +40,7 @@ export enum NodeType {
     NewExpression = 'NewExpression',
     ObjectExpression = 'ObjectExpression',
     ObjectPattern = 'ObjectPattern',
+    PrivateIdentifier = 'PrivateIdentifier',
     Program = 'Program',
     Property = 'Property',
     PropertyDefinition = 'PropertyDefinition',

src/node-transformers/dead-code-injection-transformers/DeadCodeInjectionTransformer.ts

@@ -107,7 +107,8 @@ export class DeadCodeInjectionTransformer extends AbstractNodeTransformer {
             || NodeGuards.isAwaitExpressionNode(targetNode)
             || NodeGuards.isYieldExpressionNode(targetNode)
             || NodeGuards.isSuperNode(targetNode)
-            || (NodeGuards.isForOfStatementNode(targetNode) && targetNode.await);
+            || (NodeGuards.isForOfStatementNode(targetNode) && targetNode.await)
+            || NodeGuards.isPrivateIdentifierNode(targetNode);
     }
 
     /**

src/node/NodeGuards.ts

@@ -447,6 +447,14 @@ export class NodeGuards {
         return node.type === NodeType.ObjectExpression;
     }
 
+    /**
+     * @param {Node} node
+     * @returns {boolean}
+     */
+    public static isPrivateIdentifierNode (node: ESTree.Node): node is ESTree.PrivateIdentifier {
+        return node.type === NodeType.PrivateIdentifier;
+    }
+
     /**
      * @param {Node} node
      * @returns {boolean}