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Code Issues Wiki Activity

ASTProvider considers document timestamp, related to 226955

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This commit is contained in:
Anton Leherbauer 2008-04-24 07:58:11 +00:00
parent a3e0775ca4
commit c3725935d9
1 changed files with 27 additions and 3 deletions
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30
core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/ASTProvider.java
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@ -1,5 +1,5 @@
/*******************************************************************************
* Copyright (c) 2000, 2007 IBM Corporation and others.
* Copyright (c) 2000, 2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
@ -17,12 +17,15 @@ import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IDocumentExtension4;
import org.eclipse.ui.IPartListener2;
import org.eclipse.ui.IWindowListener;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchPartReference;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.texteditor.ITextEditor;
import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
import org.eclipse.cdt.core.model.ICElement;
@ -212,6 +215,7 @@ public final class ASTProvider {
private ASTCache fCache= new ASTCache();
private ActivationListener fActivationListener;
private IWorkbenchPart fActiveEditor;
private long fTimeStamp;
/**
* Returns the C plug-in's AST provider.
@ -252,6 +256,7 @@ public final class ASTProvider {
}
synchronized (this) {
fActiveEditor= editor;
fTimeStamp= IDocumentExtension4.UNKNOWN_MODIFICATION_STAMP;
fCache.setActiveElement((ITranslationUnit)cElement);
}
}
@ -278,6 +283,20 @@ public final class ASTProvider {
return;
Assert.isTrue(cElement instanceof ITranslationUnit);
fCache.aboutToBeReconciled((ITranslationUnit)cElement);
fTimeStamp= getCurrentModificationStamp();
}
private synchronized long getCurrentModificationStamp() {
long timeStamp= IDocumentExtension4.UNKNOWN_MODIFICATION_STAMP;
if (fActiveEditor instanceof ITextEditor) {
ITextEditor textEditor= (ITextEditor) fActiveEditor;
IDocument document= textEditor.getDocumentProvider().getDocument(textEditor.getEditorInput());
if (document instanceof IDocumentExtension4) {
IDocumentExtension4 docExt= (IDocumentExtension4) document;
timeStamp= docExt.getModificationStamp();
}
}
return timeStamp;
}
/**
@ -305,10 +324,15 @@ public final class ASTProvider {
public IStatus runOnAST(ICElement cElement, WAIT_FLAG waitFlag, IProgressMonitor monitor,
ASTCache.ASTRunnable astRunnable) {
Assert.isTrue(cElement instanceof ITranslationUnit);
if (waitFlag == WAIT_ACTIVE_ONLY && !isActive((ITranslationUnit)cElement)) {
boolean isActive= isActive((ITranslationUnit)cElement);
if (waitFlag == WAIT_ACTIVE_ONLY && !isActive) {
return Status.CANCEL_STATUS;
}
long currentStamp= getCurrentModificationStamp();
if (isActive && fTimeStamp != currentStamp) {
fCache.disposeAST();
fTimeStamp= currentStamp;
}
return fCache.runOnAST((ITranslationUnit)cElement, waitFlag != WAIT_NO, monitor, astRunnable);
}
}