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/*******************************************************************************
* Copyright (c) 2004 QNX Software Systems and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* QNX Software Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.core.browser.cache;
import java.io.IOException;
import org.eclipse.cdt.core.browser.ITypeInfo;
import org.eclipse.cdt.core.browser.ITypeSearchScope;
import org.eclipse.cdt.core.browser.PathUtil;
import org.eclipse.cdt.core.browser.QualifiedTypeName;
import org.eclipse.cdt.core.browser.TypeInfo;
import org.eclipse.cdt.core.browser.TypeReference;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.internal.core.CharOperation;
import org.eclipse.cdt.internal.core.index.IEntryResult;
import org.eclipse.cdt.internal.core.index.IIndex;
import org.eclipse.cdt.internal.core.index.cindexstorage.ICIndexStorageConstants;
import org.eclipse.cdt.internal.core.index.cindexstorage.Index;
import org.eclipse.cdt.internal.core.index.cindexstorage.IndexedFileEntry;
import org.eclipse.cdt.internal.core.index.cindexstorage.io.BlocksIndexInput;
import org.eclipse.cdt.internal.core.index.cindexstorage.io.IndexInput;
import org.eclipse.cdt.internal.core.search.indexing.IndexManager;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
public class IndexerTypesJob extends IndexerJob {
private ITypeCache fTypeCache;
public IndexerTypesJob(IndexManager indexManager, ITypeCache typeCache, ITypeSearchScope scope) {
super(indexManager, typeCache.getProject());
fTypeCache = typeCache;
}
protected boolean processIndex(IIndex index, IProject project, IProgressMonitor progressMonitor) throws InterruptedException {
IndexInput input = new BlocksIndexInput(index.getIndexFile());
try {
input.open();
updateNamespaces(input, project, progressMonitor);
updateTypes(input, project, progressMonitor);
return true;
} catch (IOException e) {
return false;
} finally {
try {
input.close();
} catch (IOException e) {
return false;
}
}
}
private void updateNamespaces(IndexInput input, IProject project, IProgressMonitor monitor)
throws InterruptedException, IOException {
if (monitor.isCanceled())
throw new InterruptedException();
IEntryResult[] namespaceEntries = input.queryEntriesPrefixedBy(Index.encodeEntry(IIndex.NAMESPACE, IIndex.ANY, IIndex.DECLARATION));
if (namespaceEntries != null) {
//TODO subprogress monitor
for (int i = 0; i < namespaceEntries.length; ++i) {
if (monitor.isCanceled())
throw new InterruptedException();
IEntryResult entry = namespaceEntries[i];
char[] word = entry.getWord();
int firstSlash = CharOperation.indexOf(ICIndexStorageConstants.SEPARATOR, word, 0);
int slash = CharOperation.indexOf(ICIndexStorageConstants.SEPARATOR, word, firstSlash + 1);
String name = String.valueOf(CharOperation.subarray(word, firstSlash + 1, slash));
if (name.length() != 0) {
String[] enclosingNames = getEnclosingNames(word, slash);
addType(input, project, entry, ICElement.C_NAMESPACE, name, enclosingNames, monitor);
}
}
}
}
private void updateTypes(IndexInput input, IProject project, IProgressMonitor monitor)
throws InterruptedException, IOException {
if (monitor.isCanceled())
throw new InterruptedException();
IEntryResult[] typeEntries = input.queryEntriesPrefixedBy(Index.encodeEntry(IIndex.TYPE, IIndex.ANY, IIndex.DECLARATION));
if (typeEntries != null) {
//TODO subprogress monitor
for (int i = 0; i < typeEntries.length; ++i) {
if (monitor.isCanceled())
throw new InterruptedException();
IEntryResult entry = typeEntries[i];
char[] word = entry.getWord();
int firstSlash = CharOperation.indexOf(ICIndexStorageConstants.SEPARATOR, word, 0);
char decodedType = word[firstSlash + 1];
int type = getElementType(decodedType);
if (type != 0) {
firstSlash += 2;
int slash = CharOperation.indexOf(ICIndexStorageConstants.SEPARATOR, word, firstSlash + 1);
String name = String.valueOf(CharOperation.subarray(word, firstSlash + 1, slash));
if (name.length() != 0) { // skip anonymous structs
String[] enclosingNames = getEnclosingNames(word, slash);
addType(input, project, entry, type, name, enclosingNames, monitor);
}
} else if (decodedType == ICIndexStorageConstants.DERIVED_SUFFIX) {
firstSlash += 2;
int slash = CharOperation.indexOf(ICIndexStorageConstants.SEPARATOR, word, firstSlash + 1);
String name = String.valueOf(CharOperation.subarray(word, firstSlash + 1, slash));
if (name.length() != 0) { // skip anonymous structs
String[] enclosingNames = getEnclosingNames(word, slash);
addSuperTypeReference(input, project, entry, name, enclosingNames, monitor);
}
}
}
}
}
private int getElementType(char decodedType) {
switch (decodedType) {
case ICIndexStorageConstants.CLASS_SUFFIX :
return ICElement.C_CLASS;
case ICIndexStorageConstants.STRUCT_SUFFIX :
return ICElement.C_STRUCT;
case ICIndexStorageConstants.TYPEDEF_SUFFIX :
return ICElement.C_TYPEDEF;
case ICIndexStorageConstants.ENUM_SUFFIX :
return ICElement.C_ENUMERATION;
case ICIndexStorageConstants.UNION_SUFFIX :
return ICElement.C_UNION;
}
return 0;
}
private String[] getEnclosingNames(char[] word, int slash) {
String[] enclosingNames= null;
if (slash != -1 && slash + 1 < word.length) {
char[][] temp = CharOperation.splitOn('/', CharOperation.subarray(word, slash + 1, -1));
enclosingNames= new String[temp.length];
for (int i = 0; i < temp.length; i++) {
enclosingNames[i] = String.valueOf(temp[temp.length - i - 1]);
}
}
return enclosingNames;
}
private void addType(IndexInput input, IProject project, IEntryResult entry, int type, String name, String[] enclosingNames, IProgressMonitor monitor)
throws InterruptedException, IOException {
QualifiedTypeName qualifiedName = new QualifiedTypeName(name, enclosingNames);
ITypeInfo info = fTypeCache.getType(type, qualifiedName);
if (info == null || info.isUndefinedType()) {
int[] references = entry.getFileReferences();
if (references != null && references.length > 0) {
// add new type to cache
if (info != null) {
info.setCElementType(type);
} else {
info = new TypeInfo(type, qualifiedName);
fTypeCache.insert(info);
}
// for (int i = 0; i < references.length; ++i) {
// if (monitor.isCanceled())
// throw new InterruptedException();
//
// IndexedFile file = input.getIndexedFile(references[i]);
// if (file != null && file.getPath() != null) {
// IPath path = PathUtil.getWorkspaceRelativePath(file.getPath());
// info.addReference(new TypeReference(path, project));
// }
// }
// just grab the first reference
IndexedFileEntry file = input.getIndexedFile(references[0]);
if (file != null && file.getPath() != null) {
IPath path = PathUtil.getWorkspaceRelativePath(file.getPath());
info.addReference(new TypeReference(path, project));
}
}
}
}
private void addSuperTypeReference(IndexInput input, IProject project, IEntryResult entry, String name, String[] enclosingNames, IProgressMonitor monitor) throws InterruptedException, IOException {
QualifiedTypeName qualifiedName = new QualifiedTypeName(name, enclosingNames);
ITypeInfo info = fTypeCache.getType(ICElement.C_CLASS, qualifiedName);
if (info == null)
info = fTypeCache.getType(ICElement.C_STRUCT, qualifiedName);
if (info == null) {
// add dummy type to cache
info = new TypeInfo(0, qualifiedName);
fTypeCache.insert(info);
}
int[] references = entry.getFileReferences();
if (references != null && references.length > 0) {
for (int i = 0; i < references.length; ++i) {
if (monitor.isCanceled())
throw new InterruptedException();
IndexedFileEntry file = input.getIndexedFile(references[i]);
if (file != null && file.getPath() != null) {
IPath path = PathUtil.getWorkspaceRelativePath(file.getPath());
info.addDerivedReference(new TypeReference(path, project));
//
// // get absolute path
// IPath path = new Path(file.getPath());
// IPath projectPath = project.getFullPath();
// if (projectPath.isPrefixOf(path)) {
// path = project.getLocation().append(path.removeFirstSegments(projectPath.segmentCount()));
// }
// info.addDerivedReference(new TypeReference(path, project));
}
}
}
}
}
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