From 66107252479697272406eaae3620e11eafb959ae Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Tue, 26 Apr 2016 20:01:20 +0200
Subject: [PATCH] MethodUtils.isChainable: don't load AST for methods that have
 non-chainable return type

---
 .../src/com/siyeh/ig/psiutils/MethodUtils.java                | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/psiutils/MethodUtils.java b/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/psiutils/MethodUtils.java
index 688c84070fc6..3fc22705a72d 100644
--- a/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/psiutils/MethodUtils.java
+++ b/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/psiutils/MethodUtils.java
@@ -22,6 +22,7 @@ import com.intellij.psi.search.searches.OverridingMethodsSearch;
 import com.intellij.psi.search.searches.SuperMethodsSearch;
 import com.intellij.psi.util.InheritanceUtil;
 import com.intellij.psi.util.MethodSignatureBackedByPsiMethod;
+import com.intellij.psi.util.PsiUtil;
 import com.intellij.util.IncorrectOperationException;
 import com.intellij.util.Query;
 import com.siyeh.HardcodedMethodConstants;
@@ -328,6 +329,9 @@ public class MethodUtils {
     if (method == null) {
       return false;
     }
+    if (!InheritanceUtil.isInheritorOrSelf(method.getContainingClass(), PsiUtil.resolveClassInClassTypeOnly(method.getReturnType()), true)) {
+      return false;
+    }
     final PsiElement navigationElement = method.getNavigationElement();
     if (!(navigationElement instanceof PsiMethod)) {
       return false;