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/*******************************************************************************
* Copyright (c) 2004, 2007 QNX Software Systems 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
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* QNX Software Systems - initial API and implementation
* Andrew Ferguson (Symbian)
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.core.browser;
import java.util.regex.Pattern;
import org.eclipse.cdt.core.CCorePlugin;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.index.IIndex;
import org.eclipse.cdt.core.index.IIndexBinding;
import org.eclipse.cdt.core.index.IndexFilter;
import org.eclipse.cdt.core.model.CoreModel;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.core.model.ICProject;
import org.eclipse.cdt.internal.core.browser.util.IndexModelUtil;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
/**
* Manages a search cache for types in the workspace. Instead of returning
* objects of type <code>ICElement</code> the methods of this class returns a
* list of the lightweight objects <code>TypeInfo</code>.
* <P>
* AllTypesCache runs asynchronously using a background job to rebuild the cache
* as needed. If the cache becomes dirty again while the background job is
* running, the job is restarted.
* <P>
* If <code>getTypes</code> is called in response to a user action, a progress
* dialog is shown. If called before the background job has finished, getTypes
* waits for the completion of the background job.
*/
public class AllTypesCache {
private static final boolean DEBUG = false;
private static ITypeInfo[] getTypes(ICProject[] projects, final int[] kinds, IProgressMonitor monitor) throws CoreException {
IIndex index = CCorePlugin.getIndexManager().getIndex(projects);
try {
index.acquireReadLock();
long start = System.currentTimeMillis();
IIndexBinding[] all =
index.findBindings(Pattern.compile(".*"), false, new IndexFilter() { //$NON-NLS-1$
public boolean acceptBinding(IBinding binding) {
return IndexModelUtil.bindingHasCElementType(binding, kinds);
}},
monitor
);
if(DEBUG) {
System.out.println("Index search took "+(System.currentTimeMillis() - start)); //$NON-NLS-1$
start = System.currentTimeMillis();
}
ITypeInfo[] result = new ITypeInfo[all.length];
for(int i=0; i<all.length; i++) {
result[i] = IndexTypeInfo.create(index, all[i]);
}
if(DEBUG) {
System.out.println("Wrapping as ITypeInfo took "+(System.currentTimeMillis() - start)); //$NON-NLS-1$
start = System.currentTimeMillis();
}
return result;
} catch(InterruptedException ie) {
ie.printStackTrace();
} finally {
index.releaseReadLock();
}
return new ITypeInfo[0];
}
/**
* Returns all types in the workspace.
*/
public static ITypeInfo[] getAllTypes() {
return getAllTypes(new NullProgressMonitor());
}
/**
* Returns all types in the workspace.
*/
public static ITypeInfo[] getAllTypes(IProgressMonitor monitor) {
try {
ICProject[] projects = CoreModel.getDefault().getCModel().getCProjects();
return getTypes(projects, ITypeInfo.KNOWN_TYPES, monitor);
} catch (CoreException e) {
CCorePlugin.log(e);
return new ITypeInfo[0];
}
}
/**
* Returns all types in the given scope.
*
* @param scope The search scope
* @param kinds Array containing CElement types: C_NAMESPACE, C_CLASS,
* C_UNION, C_ENUMERATION, C_TYPEDEF
*/
public static ITypeInfo[] getTypes(ITypeSearchScope scope, int[] kinds) {
try {
return getTypes(scope.getEnclosingProjects(), kinds, new NullProgressMonitor());
} catch (CoreException e) {
CCorePlugin.log(e);
return new ITypeInfo[0];
}
}
/**
* Returns all namespaces in the given scope.
*
* @param scope The search scope
* @param includeGlobalNamespace <code>true</code> if the global (default) namespace should be returned
*/
public static ITypeInfo[] getNamespaces(ITypeSearchScope scope, boolean includeGlobalNamespace) {
try {
return getTypes(scope.getEnclosingProjects(), new int[] {ICElement.C_NAMESPACE}, new NullProgressMonitor());
} catch (CoreException e) {
CCorePlugin.log(e);
return new ITypeInfo[0];
}
}
/** Returns first type in the cache which matches the given
* type and name. If no type is found, <code>null</code>
* is returned.
*
* @param project the enclosing project
* @param type the ICElement type
* @param qualifiedName the qualified type name to match
* @return the matching type
*/
public static ITypeInfo getType(ICProject project, int type, IQualifiedTypeName qualifiedName) {
// TODO - seems to be only used when a namespace name is changed
// which would be pretty slow against the PDOM.
return null;
}
/**
* Returns all types matching name in the given project.
*
* @param project the enclosing project
* @param qualifiedName The qualified type name
* @param matchEnclosed <code>true</code> if enclosed types count as matches (foo::bar == bar)
* @param ignoreCase <code>true</code> if case-insensitive
* @return Array of types
*/
public static ITypeInfo[] getTypes(ICProject project, IQualifiedTypeName qualifiedName, boolean matchEnclosed, boolean ignoreCase) {
// TODO - seems to be only used when a class or namespace name is changed
// which would be pretty slow against the PDOM.
return new ITypeInfo[0];
}
}
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