Index: Add method to find names by position

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/core/index/IIndex.java

@@ -15,7 +15,6 @@ import java.util.regex.Pattern;
 
 import org.eclipse.cdt.core.dom.IName;
 import org.eclipse.cdt.core.dom.ast.IBinding;
-import org.eclipse.cdt.core.model.ICElement;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
@@ -183,14 +182,6 @@ public interface IIndex {
 	 * @since 4.0
 	 */
 	public IIndexFile resolveInclude(IIndexInclude include) throws CoreException;
-
-	/**
-	 * Looks for a binding for the given ICElement. May return <code>null</code>.
-	 * @param element an element a binding is searched for
-	 * @return a binding for the element or <code>null</code>
-	 * @throws CoreException
-	 */
-	public IIndexBinding findBinding(ICElement element) throws CoreException;
 	
 	/**
 	 * Searches for the binding of a name. The name may be originated by

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/core/index/IIndexFile.java

@@ -57,4 +57,9 @@ public interface IIndexFile {
 	 * @throws CoreException 
 	 */
 	long getTimestamp() throws CoreException;
+
+	/**
+	 * Find all names within the given range.
+	 */
+	IIndexName[] findNames(int offset, int length) throws CoreException;
 }

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/index/CIndex.java

@@ -29,7 +29,6 @@ import org.eclipse.cdt.core.index.IIndexFile;
 import org.eclipse.cdt.core.index.IIndexInclude;
 import org.eclipse.cdt.core.index.IIndexName;
 import org.eclipse.cdt.core.index.IndexFilter;
-import org.eclipse.cdt.core.model.ICElement;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
@@ -55,8 +54,20 @@ public class CIndex implements IIndex {
 		return result;
 	}
 	
-	public IIndexBinding findBinding(ICElement element) throws CoreException {
+	public IIndexBinding adaptBinding(IBinding binding) throws CoreException {
-		// mstodo ICElement to IBinding
+		if (binding instanceof IIndexFragmentBinding) {
+			IIndexFragmentBinding fragBinding= (IIndexFragmentBinding) binding;
+			if (isFragment(fragBinding.getFragment())) {
+				return fragBinding;
+			}
+		}
+		
+		for (int i = 0; i < fFragments.length; i++) {
+			IIndexProxyBinding result= fFragments[i].adaptBinding(binding);
+			if (result instanceof IIndexFragmentBinding) {
+				return (IIndexFragmentBinding) result;
+			}
+		}
 		return null;
 	}
 	

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/index/EmptyCIndex.java

@@ -21,7 +21,6 @@ import org.eclipse.cdt.core.index.IIndexFile;
 import org.eclipse.cdt.core.index.IIndexInclude;
 import org.eclipse.cdt.core.index.IIndexName;
 import org.eclipse.cdt.core.index.IndexFilter;
-import org.eclipse.cdt.core.model.ICElement;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
@@ -32,10 +31,6 @@ final public class EmptyCIndex implements IIndex {
 	private EmptyCIndex() {
 	}
 	
-	public IIndexBinding findBinding(ICElement element) {
-		return null;
-	}
-
 	public IIndexName[] findDeclarations(IBinding binding) {
 		return IIndexFragmentName.EMPTY_NAME_ARRAY;
 	}
@@ -97,4 +92,8 @@ final public class EmptyCIndex implements IIndex {
 	public IIndexBinding[] findBindings(Pattern[] pattern, boolean isFullyQualified, IndexFilter filter, IProgressMonitor monitor) throws CoreException {
 		return IIndexFragmentBinding.EMPTY_INDEX_BINDING_ARRAY;
 	}
+
+	public IIndexBinding adaptBinding(IBinding binding) throws CoreException {
+		return null;
+	}
 }

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/PDOMFile.java

@@ -20,6 +20,7 @@ import org.eclipse.cdt.core.dom.ast.IASTPreprocessorIncludeStatement;
 import org.eclipse.cdt.core.dom.ast.IASTPreprocessorMacroDefinition;
 import org.eclipse.cdt.core.index.IIndexInclude;
 import org.eclipse.cdt.core.index.IIndexMacro;
+import org.eclipse.cdt.core.index.IIndexName;
 import org.eclipse.cdt.internal.core.index.IIndexFragment;
 import org.eclipse.cdt.internal.core.index.IIndexFragmentFile;
 import org.eclipse.cdt.internal.core.index.IWritableIndexFragment;
@@ -321,4 +322,25 @@ public class PDOMFile implements IIndexFragmentFile {
 	public IIndexFragment getIndexFragment() {
 		return pdom;
 	}
+
+	public IIndexName[] findNames(int offset, int length) throws CoreException {
+		ArrayList result= new ArrayList();
+		for (PDOMName name= getFirstName(); name != null; name= name.getNextInFile()) {
+			int nameOffset=  name.getNodeOffset();
+			if (nameOffset >= offset) {
+				if (nameOffset == offset) {
+					if (name.getNodeLength() == length) {
+						result.add(name);
+					}
+				}
+				else if (name.isReference()) { 
+					// names are ordered, but callers are inserted before
+					// their references
+					break;
+				}
+			}
+					
+		}
+		return (IIndexName[]) result.toArray(new IIndexName[result.size()]);
+	}
 }