From 334882d25832a62ba2084bcc0f57dd1dfde137e4 Mon Sep 17 00:00:00 2001
From: Alain Magloire <alain@qnx.com>
Date: Wed, 17 Nov 2004 03:52:49 +0000
Subject: [PATCH] 2004-11-16 Alain Magloire 	Optimize things by providing a
 new method 	ICDIRegisterGroup.hasRegisters(); 	*
 cdi/org/eclipse/cdt/debug/core/cdi/model/ICDIRegisterGroup.java 	*
 src/org/eclipse/cdt/debug/internal/core/model/CRegisterGroup.java

---
 debug/org.eclipse.cdt.debug.core/ChangeLog               | 6 ++++++
 .../cdt/debug/core/cdi/model/ICDIRegisterGroup.java      | 9 +++++++++
 .../cdt/debug/internal/core/model/CRegisterGroup.java    | 7 ++++++-
 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/debug/org.eclipse.cdt.debug.core/ChangeLog b/debug/org.eclipse.cdt.debug.core/ChangeLog
index 89ad186dbf2..d227e81c6a3 100644
--- a/debug/org.eclipse.cdt.debug.core/ChangeLog
+++ b/debug/org.eclipse.cdt.debug.core/ChangeLog
@@ -1,3 +1,9 @@
+2004-11-16 Alain Magloire
+	Optimize things by providing a new method
+	ICDIRegisterGroup.hasRegisters();
+	* cdi/org/eclipse/cdt/debug/core/cdi/model/ICDIRegisterGroup.java
+	* src/org/eclipse/cdt/debug/internal/core/model/CRegisterGroup.java
+
 2004-11-15 Mikhail Khodjaiants
 	Fix for bug 78604: Disassembly causes Java exception when disassembling beyond fn(?).
 	Added the "getAddressFactory" method to the "IDisassembly" interface.
diff --git a/debug/org.eclipse.cdt.debug.core/cdi/org/eclipse/cdt/debug/core/cdi/model/ICDIRegisterGroup.java b/debug/org.eclipse.cdt.debug.core/cdi/org/eclipse/cdt/debug/core/cdi/model/ICDIRegisterGroup.java
index 208ddc117e7..a5667fbc306 100644
--- a/debug/org.eclipse.cdt.debug.core/cdi/org/eclipse/cdt/debug/core/cdi/model/ICDIRegisterGroup.java
+++ b/debug/org.eclipse.cdt.debug.core/cdi/org/eclipse/cdt/debug/core/cdi/model/ICDIRegisterGroup.java
@@ -35,4 +35,13 @@ public interface ICDIRegisterGroup extends ICDIObject {
 	 * @throws CDIException if this method fails.  Reasons include:
 	 */
 	ICDIRegisterDescriptor[] getRegisterDescriptors() throws CDIException;
+
+	/**
+	 * Returns whether this register group currently contains any registers.
+	 * 
+	 * @return whether this register group currently contains any registers
+	 * @exception CDIException if this method fails.  Reasons include:
+	 */
+	public boolean hasRegisters() throws CDIException;	
+
 }
diff --git a/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CRegisterGroup.java b/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CRegisterGroup.java
index a07747a40ad..2846297d777 100644
--- a/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CRegisterGroup.java
+++ b/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/model/CRegisterGroup.java
@@ -71,7 +71,12 @@ public class CRegisterGroup extends CDebugElement implements IRegisterGroup, IEn
 	 * @see org.eclipse.debug.core.model.IRegisterGroup#hasRegisters()
 	 */
 	public boolean hasRegisters() throws DebugException {
-		return getRegisters().length > 0;
+		try {
+			return fCDIRegisterGroup.hasRegisters();
+		} catch( CDIException e ) {
+			requestFailed( e.getMessage(), null );
+		}
+		return false;
 	}
 
 	public void dispose() {