From cc76bbd09d37aaa0d2e9093b72f17655c13258d5 Mon Sep 17 00:00:00 2001
From: Anna Kozlova <anna.kozlova@jetbrains.com>
Date: Mon, 5 Jun 2023 10:17:40 +0000
Subject: [PATCH] [psi] don't decompile to detect invalid code

in compiled code no error elements are possible

Merge-request: KT-MR-10407
Merged-by: Anna Kozlova <Anna.Kozlova@jetbrains.com>
---
 .../src/org/jetbrains/kotlin/psi/KtParameter.java    | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/compiler/psi/src/org/jetbrains/kotlin/psi/KtParameter.java b/compiler/psi/src/org/jetbrains/kotlin/psi/KtParameter.java
index ef91e5460bb..784901ba7fe 100644
--- a/compiler/psi/src/org/jetbrains/kotlin/psi/KtParameter.java
+++ b/compiler/psi/src/org/jetbrains/kotlin/psi/KtParameter.java
@@ -154,10 +154,18 @@ public class KtParameter extends KtNamedDeclarationStub<KotlinParameterStub> imp
     private <T extends PsiElement> boolean checkParentOfParentType(Class<T> klass) {
         // `parent` is supposed to be [KtParameterList]
         PsiElement parent = getParent();
-        if (parent == null || parent.getNextSibling() instanceof PsiErrorElement) {
+        if (parent == null) {
             return false;
         }
-        return klass.isInstance(parent.getParent());
+        if (klass.isInstance(parent.getParent())) {
+            //don't check ast if the tree structure is different; skip for compiled code
+            if (!getContainingKtFile().isCompiled() && 
+                parent.getNextSibling() instanceof PsiErrorElement) {
+                return false;
+            }
+            return true;
+        }
+        return false;
     }
 
     public boolean isCatchParameter() {