From 86bbb847ab5b158cca05353f1066dd7513c9ac9f Mon Sep 17 00:00:00 2001
From: Sven Efftinge <sven.efftinge@itemis.de>
Date: Thu, 12 Apr 2012 08:09:56 +0200
Subject: [PATCH] - delete trace file, if generated file is deleted
 (https://bugs.eclipse.org/bugs/show_bug.cgi?id=376376) - trace files start
 with a '.' to make them hidden by default
 (https://bugs.eclipse.org/bugs/show_bug.cgi?id=376377) - fixed generated
 source view, to work with multiple generated files.

---
 .../org/eclipse/xtext/generator/trace/AbstractTraceRegion.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/plugins/org.eclipse.xtext/src/org/eclipse/xtext/generator/trace/AbstractTraceRegion.java b/plugins/org.eclipse.xtext/src/org/eclipse/xtext/generator/trace/AbstractTraceRegion.java
index 0fd3e5b12..f12bd8fe5 100644
--- a/plugins/org.eclipse.xtext/src/org/eclipse/xtext/generator/trace/AbstractTraceRegion.java
+++ b/plugins/org.eclipse.xtext/src/org/eclipse/xtext/generator/trace/AbstractTraceRegion.java
@@ -307,6 +307,9 @@ public abstract class AbstractTraceRegion {
 	@Nullable
 	public ILocationData getMergedAssociatedLocation() {
 		List<ILocationData> allData = getAssociatedLocations();
+		if (allData.isEmpty()) {
+			return null;
+		}
 		if (allData.size() == 1) {
 			return allData.get(0);
 		}