/*******************************************************************************
* Copyright (c) 2006, 2010 Symbian 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:
* Andrew Ferguson (Symbian) - Initial API and implementation
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.core.pdom.dom.cpp;
import org.eclipse.cdt.core.dom.ast.DOMException;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.internal.core.index.IndexCPPSignatureUtil;
import org.eclipse.cdt.internal.core.pdom.db.BTree;
import org.eclipse.cdt.internal.core.pdom.dom.FindBinding;
import org.eclipse.cdt.internal.core.pdom.dom.IPDOMOverloader;
import org.eclipse.cdt.internal.core.pdom.dom.PDOMBinding;
import org.eclipse.cdt.internal.core.pdom.dom.PDOMLinkage;
import org.eclipse.cdt.internal.core.pdom.dom.PDOMNode;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.OperationCanceledException;
/**
* Look up bindings in BTree objects and IPDOMNode objects. This additionally
* takes into account function/method parameters as well as template
* specialization arguments for overloading.
*/
public class CPPFindBinding extends FindBinding {
public static class CPPBindingBTreeComparator extends FindBinding.DefaultBindingBTreeComparator {
public CPPBindingBTreeComparator(PDOMLinkage linkage) {
super(linkage);
}
@Override
public int compare(long record1, long record2) throws CoreException {
int cmp = super.compare(record1, record2);
if (cmp == 0) {
PDOMBinding binding1 = linkage.getBinding(record1);
PDOMBinding binding2 = linkage.getBinding(record2);
if (binding1 instanceof IPDOMOverloader && binding2 instanceof IPDOMOverloader) {
int ty1 = ((IPDOMOverloader) binding1).getSignatureHash();
int ty2 = ((IPDOMOverloader) binding2).getSignatureHash();
cmp = ty1 < ty2 ? -1 : (ty1 > ty2 ? 1 : 0);
}
}
return cmp;
}
}
public static class CPPFindBindingVisitor extends FindBinding.DefaultFindBindingVisitor {
private final int fConstant;
private final int fSigHash;
public CPPFindBindingVisitor(PDOMLinkage linkage, char[] name, int constant, int hash, long localToFile) {
super(linkage, name, new int[] {constant}, localToFile);
fConstant= constant;
fSigHash= hash;
}
@Override
public int compare(long record) throws CoreException {
int cmp= super.compare(record);
if (cmp == 0) {
int c1 = PDOMNode.getNodeType(fLinkage.getDB(), record);
int c2= fConstant;
if (c1 == c2) {
PDOMBinding binding = fLinkage.getBinding(record);
if (binding instanceof IPDOMOverloader) {
c1 = ((IPDOMOverloader) binding).getSignatureHash();
c2= fSigHash;
}
}
cmp = c1 < c2 ? -1 : (c1 > c2 ? 1 : 0);
}
return cmp;
}
@Override
public boolean visit(long record) throws CoreException {
fResult= fLinkage.getBinding(record);
return false;
}
@Override
protected boolean matches(PDOMBinding binding) throws CoreException {
if (super.matches(binding)) {
if (binding instanceof IPDOMOverloader) {
int ty1 = ((IPDOMOverloader) binding).getSignatureHash();
return fSigHash == ty1;
}
}
return false;
}
}
public static PDOMBinding findBinding(BTree btree, final PDOMLinkage linkage, final char[] name,
final int c2, final int ty2, long localToFileRec) throws CoreException {
CPPFindBindingVisitor visitor= new CPPFindBindingVisitor(linkage, name, c2, ty2, localToFileRec);
btree.accept(visitor);
return visitor.getResult();
}
public static PDOMBinding findBinding(PDOMNode node, PDOMLinkage linkage, char[] name, int constant,
int sigHash, long localToFileRec) throws CoreException {
CPPFindBindingVisitor visitor= new CPPFindBindingVisitor(linkage, name, constant, sigHash,
localToFileRec);
try {
node.accept(visitor);
} catch (OperationCanceledException e) {
}
return visitor.getResult();
}
public static PDOMBinding findBinding(BTree btree, PDOMLinkage linkage, IBinding binding,
long localToFileRec) throws CoreException {
Integer hash= 0;
try {
hash = IndexCPPSignatureUtil.getSignatureHash(binding);
} catch (DOMException e) {
}
if (hash != null) {
return findBinding(btree, linkage, binding.getNameCharArray(),
linkage.getBindingType(binding), hash.intValue(), localToFileRec);
}
return findBinding(btree, linkage, binding.getNameCharArray(),
new int[] {linkage.getBindingType(binding)}, localToFileRec);
}
public static PDOMBinding findBinding(PDOMNode node, PDOMLinkage linkage, IBinding binding,
long localToFileRec) throws CoreException {
Integer hash = null;
try {
hash = IndexCPPSignatureUtil.getSignatureHash(binding);
} catch (DOMException e) {
}
if (hash != null) {
return findBinding(node, linkage, binding.getNameCharArray(),
linkage.getBindingType(binding), hash.intValue(), localToFileRec);
}
return findBinding(node, linkage, binding.getNameCharArray(),
new int[] {linkage.getBindingType(binding)}, localToFileRec);
}
}