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/*******************************************************************************
* Copyright (c) 2008, 2011 Google, Inc 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:
* Sergey Prigogin (Google) - initial API and implementation
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.core.pdom.dom.cpp;
import org.eclipse.cdt.core.CCorePlugin;
import org.eclipse.cdt.core.dom.ast.DOMException;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.ITypedef;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateArgument;
import org.eclipse.cdt.core.parser.util.CharArrayUtils;
import org.eclipse.cdt.internal.core.dom.parser.cpp.ICPPUnknownClassInstance;
import org.eclipse.cdt.internal.core.index.IIndexCPPBindingConstants;
import org.eclipse.cdt.internal.core.index.IndexCPPSignatureUtil;
import org.eclipse.cdt.internal.core.pdom.db.Database;
import org.eclipse.cdt.internal.core.pdom.dom.IPDOMOverloader;
import org.eclipse.cdt.internal.core.pdom.dom.PDOMLinkage;
import org.eclipse.cdt.internal.core.pdom.dom.PDOMNode;
import org.eclipse.core.runtime.CoreException;
/**
* @author Sergey Prigogin
*/
class PDOMCPPUnknownClassInstance extends PDOMCPPUnknownClassType implements ICPPUnknownClassInstance, IPDOMOverloader {
private static final int ARGUMENTS = PDOMCPPUnknownClassType.RECORD_SIZE + 0;
private static final int SIGNATURE_HASH = ARGUMENTS + 4;
@SuppressWarnings("hiding")
protected static final int RECORD_SIZE = SIGNATURE_HASH + 4;
// Cached values.
private volatile ICPPTemplateArgument[] arguments;
public PDOMCPPUnknownClassInstance(PDOMLinkage linkage, PDOMNode parent, ICPPUnknownClassInstance classInstance)
throws CoreException {
super(linkage, parent, classInstance);
final ICPPTemplateArgument[] args= classInstance.getArguments();
long rec= PDOMCPPArgumentList.putArguments(this, args);
final Database db = getDB();
db.putRecPtr(record + ARGUMENTS, rec);
try {
Integer sigHash = IndexCPPSignatureUtil.getSignatureHash(classInstance);
db.putInt(record + SIGNATURE_HASH, sigHash != null ? sigHash.intValue() : 0);
} catch (DOMException e) {
}
}
public PDOMCPPUnknownClassInstance(PDOMLinkage linkage, long bindingRecord) {
super(linkage, bindingRecord);
}
@Override
protected int getRecordSize() {
return RECORD_SIZE;
}
@Override
public int getNodeType() {
return IIndexCPPBindingConstants.CPP_UNKNOWN_CLASS_INSTANCE;
}
@Override
public int getSignatureHash() throws CoreException {
return getDB().getInt(record + SIGNATURE_HASH);
}
@Override
public ICPPTemplateArgument[] getArguments() {
if (arguments == null) {
try {
final long rec= getPDOM().getDB().getRecPtr(record + ARGUMENTS);
arguments= PDOMCPPArgumentList.getArguments(this, rec);
} catch (CoreException e) {
CCorePlugin.log(e);
arguments= ICPPTemplateArgument.EMPTY_ARGUMENTS;
}
}
return arguments;
}
@Override
public boolean isSameType(IType type) {
if (type instanceof ITypedef) {
return type.isSameType(this);
}
if (type instanceof PDOMNode) {
PDOMNode node= (PDOMNode) type;
// Different PDOM bindings may result in equal types if a parent
// turns out to be a template parameter.
if (node.getPDOM() == getPDOM() && node.getRecord() == getRecord()) {
return true;
}
}
if (type instanceof ICPPUnknownClassInstance) {
ICPPUnknownClassInstance rhs= (ICPPUnknownClassInstance) type;
if (CharArrayUtils.equals(getNameCharArray(), rhs.getNameCharArray())) {
ICPPTemplateArgument[] lhsArgs= getArguments();
ICPPTemplateArgument[] rhsArgs= rhs.getArguments();
if (lhsArgs != rhsArgs) {
if (lhsArgs == null || rhsArgs == null)
return false;
if (lhsArgs.length != rhsArgs.length)
return false;
for (int i= 0; i < lhsArgs.length; i++) {
if (!lhsArgs[i].isSameValue(rhsArgs[i]))
return false;
}
}
final IBinding lhsContainer= getOwner();
final IBinding rhsContainer= rhs.getOwner();
if (lhsContainer instanceof IType && rhsContainer instanceof IType) {
return (((IType) lhsContainer).isSameType((IType) rhsContainer));
}
}
}
return false;
}
}
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