From fc8fde5ec0163f1d85b192fef1636e1d0299f4ef Mon Sep 17 00:00:00 2001
From: peter <peter.gromov@jetbrains.com>
Date: Sat, 2 Oct 2010 18:08:15 +0400
Subject: [PATCH] diagnostics: completion can't be restarted

---
 .../completion/CompletionProgressIndicator.java           | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java b/platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java
index 8b558981356f..4578e3231b2f 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java
@@ -453,7 +453,7 @@ public class CompletionProgressIndicator extends ProgressIndicatorBase implement
   @Override
   public void start() {
     if (isCanceled()) {
-      throw new AssertionError("Restarting completion process is prohibited");
+      throw new AssertionError("Restarting completion process is prohibited: trace=" + cancelTrace);
     }
 
     super.start();
@@ -462,7 +462,11 @@ public class CompletionProgressIndicator extends ProgressIndicatorBase implement
   @Override
   public void initStateFrom(@NotNull ProgressIndicatorEx indicator) {
     if (isCanceled()) {
-      throw new AssertionError("Re-init-ting completion process is prohibited");
+      throw new AssertionError("Re-init-ting completion process is prohibited: trace=" + cancelTrace);
+    }
+
+    if (indicator.isCanceled()) {
+      LOG.error("initStateFrom canceled: " + indicator);
     }
 
     super.initStateFrom(indicator);