From c38f19dbd9377d8032fb51d3d9004c30148ec1cf Mon Sep 17 00:00:00 2001
From: Stepan Koltsov <stepan.koltsov@jetbrains.com>
Date: Fri, 25 May 2012 15:07:54 +0400
Subject: [PATCH] unconditional assertion, helpful message

---
 .../org/jetbrains/jet/lang/resolve/OverrideResolver.java    | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/resolve/OverrideResolver.java b/compiler/frontend/src/org/jetbrains/jet/lang/resolve/OverrideResolver.java
index ea20b311dce..4fafee9b93d 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/resolve/OverrideResolver.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/resolve/OverrideResolver.java
@@ -368,7 +368,11 @@ public class OverrideResolver {
             @NotNull Multimap<CallableDescriptor, CallableDescriptor> invisibleOverriddenDescriptors) {
         JetNamedDeclaration member = (JetNamedDeclaration) BindingContextUtils.descriptorToDeclaration(trace.getBindingContext(), declared);
         if (member == null) {
-            assert trace.get(DELEGATED, declared);
+            Boolean delegated = trace.get(DELEGATED, declared);
+            if (delegated == null || !delegated)
+                throw new IllegalStateException(
+                        "decriptor is not resolved to declaration" +
+                        " and it is not delegate: " + declared + ", DELEGATED: " + delegated);
             return;
         }