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diff --git a/util/org.eclipse.cdt.util/src/org/eclipse/cdt/internal/core/parser/util/DOMSearchUtil.java b/util/org.eclipse.cdt.util/src/org/eclipse/cdt/internal/core/parser/util/DOMSearchUtil.java
new file mode 100644
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+++ b/util/org.eclipse.cdt.util/src/org/eclipse/cdt/internal/core/parser/util/DOMSearchUtil.java
@@ -0,0 +1,218 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 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
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ * Markus Schorn (Wind River Systems)
+ *******************************************************************************/
+package org.eclipse.cdt.internal.core.parser.util;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import junit.framework.Assert;
+
+import org.eclipse.cdt.core.CCorePlugin;
+import org.eclipse.cdt.core.dom.IName;
+import org.eclipse.cdt.core.dom.ast.DOMException;
+import org.eclipse.cdt.core.dom.ast.IASTName;
+import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
+import org.eclipse.cdt.core.dom.ast.IBinding;
+import org.eclipse.cdt.core.dom.ast.c.CASTVisitor;
+import org.eclipse.cdt.core.dom.ast.cpp.CPPASTVisitor;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPClassScope;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPConstructor;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPMethod;
+import org.eclipse.cdt.core.index.IIndexBinding;
+import org.eclipse.cdt.core.parser.ParserLanguage;
+import org.eclipse.cdt.core.parser.util.ArrayUtil;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.content.IContentType;
+
+/**
+ * Utility class to have commonly used algorithms in one place for searching with the DOM.
+ *
+ * @author dsteffle
+ */
+public class DOMSearchUtil {
+ private static final IASTName[] BLANK_NAME_ARRAY = new IASTName[0];
+// private static final IASTName[] EMPTY_NAME_LIST = BLANK_NAME_ARRAY;
+
+ public static final int DECLARATIONS = 1;
+ public static final int DEFINITIONS = 2;
+ public static final int DECLARATIONS_DEFINITIONS = 3;
+ public static final int REFERENCES = 4;
+ public static final int ALL_OCCURRENCES = 5;
+ /**
+ * This retrieves the ParserLanguage from an IFile.
+ *
+ * @param file
+ * @return
+ */
+ public static ParserLanguage getLanguageFromFile(IFile file) {
+ IProject project = file.getProject();
+ IContentType contentType = CCorePlugin.getContentType(project, file.getFullPath().lastSegment());
+ if (contentType != null) {
+ String lid = contentType.getId();
+ if (CCorePlugin.CONTENT_TYPE_CXXSOURCE.equals(lid) ||
+ CCorePlugin.CONTENT_TYPE_CXXHEADER.equals(lid)) {
+ return ParserLanguage.CPP;
+ }
+ }
+ return ParserLanguage.C;
+ }
+
+ /**
+ * The CPPNameCollector used to get IASTNames from an IASTNode.
+ *
+ * @author dsteffle
+ */
+ static public class CPPNameCollector extends CPPASTVisitor {
+ {
+ shouldVisitNames = true;
+ }
+ public List nameList = new ArrayList();
+ public int visit( IASTName name ){
+ nameList.add( name );
+ return PROCESS_CONTINUE;
+ }
+ public IASTName getName( int idx ){
+ if( idx < 0 || idx >= nameList.size() )
+ return null;
+ return (IASTName) nameList.get( idx );
+ }
+ public int size() { return nameList.size(); }
+ }
+
+ /**
+ * The CNameCollector used to get IASTNames from an IASTNode.
+ *
+ * @author dsteffle
+ */
+ static public class CNameCollector extends CASTVisitor {
+ {
+ shouldVisitNames = true;
+ }
+ public List nameList = new ArrayList();
+ public int visit( IASTName name ){
+ nameList.add( name );
+ return PROCESS_CONTINUE;
+ }
+ public IASTName getName( int idx ){
+ if( idx < 0 || idx >= nameList.size() )
+ return null;
+ return (IASTName) nameList.get( idx );
+ }
+ public int size() { return nameList.size(); }
+ }
+
+ /**
+ * Returns the ParserLanguage corresponding to the IPath and IProject. Returns ParserLanguage.CPP if the file type is a header.
+ *
+ * @param path
+ * @param project
+ * @return
+ */
+ public static ParserLanguage getLanguage( IPath path, IProject project )
+ {
+ //FIXME: ALAIN, for headers should we assume CPP ??
+ // The problem is that it really depends on how the header was included.
+ String id = null;
+ IContentType contentType = CCorePlugin.getContentType(project, path.lastSegment());
+ if (contentType != null) {
+ id = contentType.getId();
+ }
+ if (id != null) {
+ if (CCorePlugin.CONTENT_TYPE_CXXHEADER.equals(id)) {
+ return ParserLanguage.CPP;
+ } else if (CCorePlugin.CONTENT_TYPE_CXXSOURCE.equals(id)) {
+ return ParserLanguage.CPP;
+ } else if (CCorePlugin.CONTENT_TYPE_CHEADER.equals(id)) {
+ return ParserLanguage.C;
+ } else if (CCorePlugin.CONTENT_TYPE_CSOURCE.equals(id)) {
+ return ParserLanguage.C;
+ } else if (CCorePlugin.CONTENT_TYPE_ASMSOURCE.equals(id)) {
+ // ???
+ // What do we do here ?
+ }
+ }
+ return ParserLanguage.CPP;
+ }
+
+ /**
+ * This is used to get the names from the TU that the IASTName searchName belongs to.
+ *
+ * @param searchName the IASTName whose references/delcarations are to be retrieved
+ * @param limitTo used to specify whether to get declarations, references, or both, one of:
+ * ( CSearchPattern.DECLARATION | CSearchPattern.REFERENCES | CSearchPattern.ALL_OCCURRENCES )
+ * @return IASTName[] declarations, references, or both depending on limitTo that correspond to the IASTName searchName searched for
+ */
+ public static IName[] getNamesFromDOM(IASTName searchName, int limitTo) {
+ IName[] names = null;
+ IASTTranslationUnit tu = searchName.getTranslationUnit();
+
+ if (tu == null) {
+ return BLANK_NAME_ARRAY;
+ }
+
+ IBinding binding = searchName.resolveBinding();
+ if (binding instanceof IIndexBinding) {
+ Assert.fail("Not implemented");
+// try {
+// ArrayList pdomNames = new ArrayList();
+// IPDOMResolver pdom= ((PDOMBinding) binding).getPDOM();
+// // First decls
+// names= pdom.getDeclarations(binding);
+// pdomNames.addAll(Arrays.asList(names));
+// // Next defs
+// names= pdom.getDefinitions(binding);
+// pdomNames.addAll(Arrays.asList(names));
+// names = (IName[])pdomNames.toArray(new IName[pdomNames.size()]);
+// } catch (CoreException e) {
+// CCorePlugin.log(e);
+// }
+ } else {
+ names = getNames(tu, binding, limitTo);
+
+ if (names == null || names.length == 0) { // try alternate strategies
+ try {
+ // fix for 86829, 95224
+ if ((binding instanceof ICPPConstructor || (binding instanceof ICPPMethod && ((ICPPMethod)binding).isDestructor()))
+ && binding.getScope() instanceof ICPPClassScope) {
+ binding = ((ICPPClassScope)binding.getScope()).getClassType();
+ names = getNames(tu, binding, limitTo);
+ }
+ } catch (DOMException e) {}
+ }
+ }
+
+ return names;
+ }
+
+ private static IASTName[] getNames(IASTTranslationUnit tu, IBinding binding, int limitTo) {
+ IASTName[] names = null;
+ if (limitTo == DECLARATIONS ||
+ limitTo == DECLARATIONS_DEFINITIONS) {
+ names = tu.getDeclarationsInAST(binding);
+ } else if (limitTo == REFERENCES) {
+ names = tu.getReferences(binding);
+ } else if (limitTo == DEFINITIONS) {
+ names = tu.getDefinitionsInAST(binding);
+ } else if (limitTo == ALL_OCCURRENCES){
+ names = tu.getDeclarationsInAST(binding);
+ names = (IASTName[])ArrayUtil.addAll(IASTName.class, names, tu.getReferences(binding));
+ } else { // assume ALL
+ names = tu.getDeclarationsInAST(binding);
+ names = (IASTName[])ArrayUtil.addAll(IASTName.class, names, tu.getReferences(binding));
+ }
+
+ return names;
+ }
+
+}

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