author | Eugene Ostroukhov <eugeneo@symbian.org> |
Fri, 05 Feb 2010 09:22:26 -0800 | |
changeset 101 | 15f3b303bbb1 |
parent 52 | f577ea64429e |
permissions | -rw-r--r-- |
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// Copyright (c) 2009 The Chromium Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style license that can be |
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// found in the LICENSE file. |
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package org.chromium.debug.ui; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.Map; |
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import java.util.Set; |
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import org.chromium.debug.core.model.EvaluateContext; |
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import org.eclipse.core.runtime.IAdaptable; |
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import org.eclipse.debug.ui.DebugUITools; |
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import org.eclipse.debug.ui.contexts.DebugContextEvent; |
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import org.eclipse.debug.ui.contexts.IDebugContextListener; |
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import org.eclipse.jface.viewers.ISelection; |
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import org.eclipse.jface.viewers.IStructuredSelection; |
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import org.eclipse.ui.IWindowListener; |
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import org.eclipse.ui.IWorkbench; |
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import org.eclipse.ui.IWorkbenchPage; |
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import org.eclipse.ui.IWorkbenchPart; |
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import org.eclipse.ui.IWorkbenchWindow; |
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import org.eclipse.ui.PlatformUI; |
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/** |
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* Keeps track of the evaluation context (selected StackFrame) in all the |
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* workbench parts. A singleton. |
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*/ |
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public class JsEvalContextManager implements IWindowListener, IDebugContextListener { |
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private static final String DEBUGGER_ACTIVE = ChromiumDebugUIPlugin.PLUGIN_ID + ".debuggerActive"; //$NON-NLS-1$ |
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private static JsEvalContextManager instance; |
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private IWorkbenchWindow activeWindow; |
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f577ea64429e
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Eugene Ostroukhov <eugeneo@symbian.org>
parents:
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diff
changeset
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private final Map<IWorkbenchPage, EvaluateContext> pageToFrame = |
f577ea64429e
Migrated to unmodified Chromium Development Tools version
Eugene Ostroukhov <eugeneo@symbian.org>
parents:
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new HashMap<IWorkbenchPage, EvaluateContext>(); |
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protected JsEvalContextManager() { |
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DebugUITools.getDebugContextManager().addDebugContextListener(this); |
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} |
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/** |
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* This method will get called only once. |
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*/ |
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public static void startup() { |
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Runnable r = new Runnable() { |
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public void run() { |
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if (instance == null) { |
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instance = new JsEvalContextManager(); |
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IWorkbench workbench = PlatformUI.getWorkbench(); |
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workbench.addWindowListener(instance); |
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instance.activeWindow = workbench.getActiveWorkbenchWindow(); |
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} |
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} |
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}; |
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ChromiumDebugUIPlugin.getDisplay().asyncExec(r); |
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} |
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public void windowActivated(IWorkbenchWindow window) { |
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activeWindow = window; |
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} |
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public void windowClosed(IWorkbenchWindow window) { |
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} |
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public void windowDeactivated(IWorkbenchWindow window) { |
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} |
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public void windowOpened(IWorkbenchWindow window) { |
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} |
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public void debugContextChanged(DebugContextEvent event) { |
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if ((event.getFlags() & DebugContextEvent.ACTIVATED) > 0) { |
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IWorkbenchPart part = event.getDebugContextProvider().getPart(); |
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if (part == null) { |
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return; |
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} |
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IWorkbenchPage page = part.getSite().getPage(); |
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ISelection selection = event.getContext(); |
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if (selection instanceof IStructuredSelection) { |
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Object firstElement = ((IStructuredSelection) selection).getFirstElement(); |
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if (firstElement instanceof IAdaptable) { |
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Eugene Ostroukhov <eugeneo@symbian.org>
parents:
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IAdaptable adaptable = (IAdaptable) firstElement; |
f577ea64429e
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f577ea64429e
Migrated to unmodified Chromium Development Tools version
Eugene Ostroukhov <eugeneo@symbian.org>
parents:
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diff
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EvaluateContext frame = (EvaluateContext) adaptable.getAdapter(EvaluateContext.class); |
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if (frame != null) { |
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putStackFrame(page, frame); |
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return; |
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} |
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} |
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} |
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// debug context for the |page| has been lost |
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removeStackFrame(page); |
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} |
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} |
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/** |
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* Returns the stackframe corresponding to the given {@code part}, or {@code |
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* null} if none. |
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* |
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* @param part the active part |
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* @return the stack frame in whose context the evaluation is performed, or |
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* {@code null} if none |
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*/ |
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parents:
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public static EvaluateContext getStackFrameFor(IWorkbenchPart part) { |
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IWorkbenchPage page = part.getSite().getPage(); |
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f577ea64429e
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EvaluateContext frame = getStackFrameFor(page); |
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if (frame == null) { |
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return getStackFrameFor(page.getWorkbenchWindow()); |
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} |
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return frame; |
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} |
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/** |
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* Returns the stackframe corresponding to the given {@code window}, or |
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* {@code null} if none. |
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* |
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* @param window to find the StackFrame for. If {@code null}, the {@code |
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* activeWindow} will be used instead |
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* @return the stack frame in whose the evaluation is performed, or {@code |
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* null} if none |
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*/ |
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f577ea64429e
Migrated to unmodified Chromium Development Tools version
Eugene Ostroukhov <eugeneo@symbian.org>
parents:
2
diff
changeset
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public static EvaluateContext getStackFrameFor(IWorkbenchWindow window) { |
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Set<IWorkbenchWindow> visitedWindows = new HashSet<IWorkbenchWindow>(); |
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if (window == null) { |
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window = instance.activeWindow; |
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} |
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return getStackFrameFor(window, visitedWindows); |
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} |
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f577ea64429e
Migrated to unmodified Chromium Development Tools version
Eugene Ostroukhov <eugeneo@symbian.org>
parents:
2
diff
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private static EvaluateContext getStackFrameFor( |
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IWorkbenchWindow window, Set<IWorkbenchWindow> visitedWindows) { |
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IWorkbenchPage activePage = window.getActivePage(); |
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f577ea64429e
Migrated to unmodified Chromium Development Tools version
Eugene Ostroukhov <eugeneo@symbian.org>
parents:
2
diff
changeset
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EvaluateContext frame = null; |
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// Check the active page in the window |
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if (activePage != null) { |
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frame = getStackFrameFor(activePage); |
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if (frame != null) { |
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return frame; |
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} |
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} |
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// Check all the current Eclipse window pages |
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for (IWorkbenchPage windowPage : window.getPages()) { |
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if (activePage != windowPage) { |
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frame = getStackFrameFor(windowPage); |
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if (frame != null) { |
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return frame; |
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} |
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} |
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} |
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// Last resort - check all other Eclipse windows |
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visitedWindows.add(window); |
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for (IWorkbenchWindow workbenchWindow : PlatformUI.getWorkbench().getWorkbenchWindows()) { |
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if (!visitedWindows.contains(workbenchWindow)) { |
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frame = getStackFrameFor(workbenchWindow, visitedWindows); |
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if (frame != null) { |
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return frame; |
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} |
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} |
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} |
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// Nothing found |
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return null; |
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} |
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52
f577ea64429e
Migrated to unmodified Chromium Development Tools version
Eugene Ostroukhov <eugeneo@symbian.org>
parents:
2
diff
changeset
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private static EvaluateContext getStackFrameFor(IWorkbenchPage page) { |
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if (instance != null) { |
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return instance.pageToFrame.get(page); |
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} |
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return null; |
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} |
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private void removeStackFrame(IWorkbenchPage page) { |
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pageToFrame.remove(page); |
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if (pageToFrame.isEmpty()) { |
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// No more available frames |
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System.setProperty(DEBUGGER_ACTIVE, Boolean.FALSE.toString()); |
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} |
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} |
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f577ea64429e
Migrated to unmodified Chromium Development Tools version
Eugene Ostroukhov <eugeneo@symbian.org>
parents:
2
diff
changeset
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private void putStackFrame(IWorkbenchPage page, EvaluateContext frame) { |
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pageToFrame.put(page, frame); |
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System.setProperty(DEBUGGER_ACTIVE, Boolean.TRUE.toString()); |
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} |
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} |