From 7ebebc182dc21ef5a9fb96c1ccac839530910a22 Mon Sep 17 00:00:00 2001
From: Anna Kozlova <anna.kozlova@jetbrains.com>
Date: Mon, 23 Mar 2015 16:36:44 +0100
Subject: [PATCH] show implementations: check if sources are attached
 (IDEA-137734)

---
 .../codeInsight/hint/actions/ShowImplementationsAction.java  | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/platform/lang-impl/src/com/intellij/codeInsight/hint/actions/ShowImplementationsAction.java b/platform/lang-impl/src/com/intellij/codeInsight/hint/actions/ShowImplementationsAction.java
index 29aacc3716cc..c7232ed6d012 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/hint/actions/ShowImplementationsAction.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/hint/actions/ShowImplementationsAction.java
@@ -148,6 +148,11 @@ public class ShowImplementationsAction extends AnAction implements PopupAction {
       }
     }
 
+    //check attached sources if any
+    if (element instanceof PsiCompiledElement) {
+      element = element.getNavigationElement();
+    }
+
     String text = "";
     PsiElement[] impls = new PsiElement[0];
     if (element != null) {