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[307023] Use of reflection in extending memory view/browser rendering API is unacceptable

This commit is contained in:
John Cortell 2010-03-25 07:24:13 +00:00
parent e639e05743
commit f4e45adcea

View file

@ -12,7 +12,6 @@
package org.eclipse.cdt.debug.ui.memory.memorybrowser;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.math.BigInteger;
import java.util.ArrayList;
@ -82,7 +81,6 @@ import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
@ -119,7 +117,10 @@ public class MemoryBrowser extends ViewPart implements IDebugContextListener, IM
private HashMap<Object,CTabFolder> fContextFolders = new HashMap<Object,CTabFolder> ();
private GoToAddressBarWidget fGotoAddressBar;
private Control fGotoAddressBarControl;
private Combo fGotoAddressSpaceControl;
// revisit; see bug 307023
// private Combo fGotoAddressSpaceControl;
private Label fUnsupportedLabel;
private Composite fMainComposite;
private String defaultRenderingTypeId = null;
@ -131,7 +132,9 @@ public class MemoryBrowser extends ViewPart implements IDebugContextListener, IM
private final static String KEY_MEMORY_BLOCK = "MEMORY"; //$NON-NLS-1$
private final static String KEY_RETRIEVAL = "RETRIEVAL"; //$NON-NLS-1$
private final static String KEY_CONTAINER = "CONTAINER"; //$NON-NLS-1$
private final static String KEY_ADDRESS_SPACE_PREFIXES = "ADDRESSSPACEPREFIXES"; //$NON-NLS-1$
// revisit; see bug 307023
// private final static String KEY_ADDRESS_SPACE_PREFIXES = "ADDRESSSPACEPREFIXES"; //$NON-NLS-1$
public static final String PREF_DEFAULT_RENDERING = "org.eclipse.cdt.debug.ui.memory.memorybrowser.defaultRendering"; //$NON-NLS-1$
@ -177,7 +180,8 @@ public class MemoryBrowser extends ViewPart implements IDebugContextListener, IM
layout.spacing = 0;
fMainComposite.setLayout(layout);
fGotoAddressSpaceControl = new Combo(fMainComposite, SWT.DROP_DOWN | SWT.READ_ONLY);
// revisit; see bug 307023
//fGotoAddressSpaceControl = new Combo(fMainComposite, SWT.DROP_DOWN | SWT.READ_ONLY);
fGotoAddressBar = new GoToAddressBarWidget();
fGotoAddressBarControl = fGotoAddressBar.createControl(fMainComposite);
@ -206,7 +210,9 @@ public class MemoryBrowser extends ViewPart implements IDebugContextListener, IM
FormData data = new FormData();
data.top = new FormAttachment(0);
data.left = new FormAttachment(fGotoAddressSpaceControl);
// revisit; see bug 307023
//data.left = new FormAttachment(fGotoAddressSpaceControl);
data.left = new FormAttachment(0);
data.right = new FormAttachment(100);
fGotoAddressBarControl.setLayoutData(data);
@ -319,7 +325,9 @@ public class MemoryBrowser extends ViewPart implements IDebugContextListener, IM
{
fStackLayout.topControl = fUnsupportedLabel;
fGotoAddressBarControl.setVisible(false);
fGotoAddressSpaceControl.setVisible(false);
// revisit; see bug 307023
//fGotoAddressSpaceControl.setVisible(false);
}
private void performGo(boolean inNewTab)
@ -372,17 +380,18 @@ public class MemoryBrowser extends ViewPart implements IDebugContextListener, IM
}
}
}
private String getAddressSpacePrefix()
{
if(fGotoAddressSpaceControl.isVisible())
{
String prefixes[] = (String[]) fGotoAddressSpaceControl.getData(KEY_ADDRESS_SPACE_PREFIXES);
if(prefixes != null && prefixes.length > 0)
{
return prefixes[fGotoAddressSpaceControl.getSelectionIndex()];
}
}
// revisit; see bug 307023
// if(fGotoAddressSpaceControl.isVisible())
// {
// String prefixes[] = (String[]) fGotoAddressSpaceControl.getData(KEY_ADDRESS_SPACE_PREFIXES);
// if(prefixes != null && prefixes.length > 0)
// {
// return prefixes[fGotoAddressSpaceControl.getSelectionIndex()];
// }
// }
return "";
}
@ -392,15 +401,18 @@ public class MemoryBrowser extends ViewPart implements IDebugContextListener, IM
private void updateLabel(CTabItem tab, IMemoryRendering rendering)
{
String label = null;
// would like to avoid using reflection
try {
Method m = rendering.getControl().getClass().getMethod("getViewportStartAddress", new Class[0]); //$NON-NLS-1$
if(m != null)
label = "0x" + ((BigInteger) m.invoke(rendering.getControl(), new Object[0])).toString(16).toUpperCase(); //$NON-NLS-1$
}
catch (Exception e)
{
}
// This is a hack and needs to be revisited.
//
// // would like to avoid using reflection
// try {
// Method m = rendering.getControl().getClass().getMethod("getViewportStartAddress", new Class[0]); //$NON-NLS-1$
// if(m != null)
// label = "0x" + ((BigInteger) m.invoke(rendering.getControl(), new Object[0])).toString(16).toUpperCase(); //$NON-NLS-1$
// }
// catch (Exception e)
// {
// }
if(label == null)
label = rendering.getLabel();
@ -413,22 +425,22 @@ public class MemoryBrowser extends ViewPart implements IDebugContextListener, IM
* @param retrieval memory block retrieval.
* @return two arrays, the first containing memory space mnemonics, the second containing associated expression prefixes
*/
private String[][] getAddressSpaces(IMemoryBlockRetrieval retrieval)
{
// would like to avoid using reflection, but necessary interface additions should live in platform to avoid introducing dependencies.
String[][] addressSpaceTitles = new String[0][0];
try {
Method m = retrieval.getClass().getMethod("getAddressSpaces", new Class[0]); //$NON-NLS-1$
if(m != null)
addressSpaceTitles = (String[][]) m.invoke(retrieval, new Object[0]);
}
catch (Exception e)
{
}
return addressSpaceTitles;
}
// revisit; see bug 307023
// private String[][] getAddressSpaces(IMemoryBlockRetrieval retrieval)
// {
// // would like to avoid using reflection, but necessary interface additions should live in platform to avoid introducing dependencies.
//
// String[][] addressSpaceTitles = new String[0][0];
// try {
// Method m = retrieval.getClass().getMethod("getAddressSpaces", new Class[0]); //$NON-NLS-1$
// if(m != null)
// addressSpaceTitles = (String[][]) m.invoke(retrieval, new Object[0]);
// }
// catch (Exception e)
// {
// }
// return addressSpaceTitles;
// }
private CTabFolder createTabFolder(Composite parent)
{
@ -603,15 +615,18 @@ public class MemoryBrowser extends ViewPart implements IDebugContextListener, IM
if(retrieval != null && launch != null && !launch.isTerminated())
{
fGotoAddressBarControl.setVisible(true);
String addressSpaces[][] = getAddressSpaces(retrieval);
if(addressSpaces.length > 0)
{
fGotoAddressSpaceControl.setVisible(true);
fGotoAddressSpaceControl.setItems(addressSpaces[0]);
fGotoAddressSpaceControl.setData(KEY_ADDRESS_SPACE_PREFIXES, addressSpaces[1]);
}
else
fGotoAddressSpaceControl.setVisible(false);
// revisit; see bug 307023
// String addressSpaces[][] = getAddressSpaces(retrieval);
// if(addressSpaces.length > 0)
// {
// fGotoAddressSpaceControl.setVisible(true);
// fGotoAddressSpaceControl.setItems(addressSpaces[0]);
// fGotoAddressSpaceControl.setData(KEY_ADDRESS_SPACE_PREFIXES, addressSpaces[1]);
// }
// else
// fGotoAddressSpaceControl.setVisible(false);
CTabFolder tabFolder = getTabFolder(retrieval);
if(tabFolder != null)
{
@ -643,7 +658,10 @@ public class MemoryBrowser extends ViewPart implements IDebugContextListener, IM
{
handleUnsupportedSelection();
}
fGotoAddressSpaceControl.pack(true);
// revisit; see bug 307023
//fGotoAddressSpaceControl.pack(true);
fStackLayout.topControl.getParent().layout(true);
}
}