logic fixes

Author: vwillyams

lib/rules/no-multi-comp.js

@@ -54,7 +54,7 @@ module.exports = {
     const exportOnly = configuration.exportOnly || false;
 
     const exportedComponents = new Set(); // Track exported components
-    const validIdentifiers = ['ArrowFunctionExpression', 'Identifier', 'FunctionExpression'];
+    const validIdentifiers = new Set(['ArrowFunctionExpression', 'Identifier', 'FunctionExpression']);
 
     /**
      * Given an export declaration, find the export name.
@@ -67,7 +67,7 @@ module.exports = {
       }
       for (const declarator of node.declaration.declarations || []) {
         const type = declarator.init.type;
-        if (validIdentifiers.find(type)) {
+        if (validIdentifiers.has(type)) {
           return declarator.id.name;
         }
       }
@@ -80,7 +80,7 @@ module.exports = {
      */
     function findComponentIdentifierFromComponent(component) {
       let name;
-      if (component.node.parent) {
+      if (component.node.parent.id) {
         name = component.node.parent.id.name;
       }
       if (!name) {