/*******************************************************************************
* Copyright (c) 2006, 2010 QNX 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:
* QNX - 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.IName;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPBase;
import org.eclipse.cdt.internal.core.dom.parser.cpp.ICPPInternalBase;
import org.eclipse.cdt.internal.core.pdom.db.Database;
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.PDOMName;
import org.eclipse.core.runtime.CoreException;
/**
* @author Doug Schaefer
*/
class PDOMCPPBase implements ICPPBase, ICPPInternalBase {
private static final int BASECLASS_SPECIFIER = 0;
private static final int NEXTBASE = 4;
private static final int FLAGS = 8;
protected static final int RECORD_SIZE = 9;
private final PDOMLinkage linkage;
private final long record;
private PDOMBinding fCachedBaseClass;
public PDOMCPPBase(PDOMLinkage linkage, long record) {
this.linkage = linkage;
this.record = record;
}
public PDOMCPPBase(PDOMLinkage linkage, PDOMName baseClassSpec, boolean isVirtual, int visibility)
throws CoreException {
this.linkage = linkage;
Database db = getDB();
this.record = db.malloc(RECORD_SIZE);
long baserec = baseClassSpec != null ? baseClassSpec.getRecord() : 0;
db.putRecPtr(record + BASECLASS_SPECIFIER, baserec);
byte flags = (byte)(visibility | (isVirtual ? 4 : 0));
db.putByte(record + FLAGS, flags);
}
private Database getDB() {
return linkage.getDB();
}
public long getRecord() {
return record;
}
public void setNextBase(PDOMCPPBase nextBase) throws CoreException {
long rec = nextBase != null ? nextBase.getRecord() : 0;
getDB().putRecPtr(record + NEXTBASE, rec);
}
public PDOMCPPBase getNextBase() throws CoreException {
long rec = getDB().getRecPtr(record + NEXTBASE);
return rec != 0 ? new PDOMCPPBase(linkage, rec) : null;
}
private int getFlags() throws CoreException {
return getDB().getByte(record + FLAGS);
}
public PDOMName getBaseClassSpecifierName() {
try {
long rec = getDB().getRecPtr(record + BASECLASS_SPECIFIER);
if (rec != 0) {
return new PDOMName(linkage, rec);
}
} catch (CoreException e) {
CCorePlugin.log(e);
}
return null;
}
public IBinding getBaseClass() {
if (fCachedBaseClass != null)
return fCachedBaseClass;
try {
PDOMName name= getBaseClassSpecifierName();
if (name != null) {
PDOMBinding b = name.getBinding();
while (b instanceof PDOMCPPTypedef && ((PDOMCPPTypedef) b).getType() instanceof PDOMBinding) {
b = (PDOMBinding) ((PDOMCPPTypedef) b).getType();
}
return fCachedBaseClass= b;
}
} catch (CoreException e) {
CCorePlugin.log(e);
}
return null;
}
public int getVisibility() {
try {
return getFlags() & 0x3;
} catch (CoreException e) {
CCorePlugin.log(e);
return 0;
}
}
public boolean isVirtual() {
try {
return (getFlags() & 0x4) != 0;
} catch (CoreException e) {
CCorePlugin.log(e);
return false;
}
}
public void delete() throws CoreException {
getDB().free(record);
}
public void setBaseClass(IBinding binding) {
throw new UnsupportedOperationException();
}
@Override
public ICPPBase clone() {
return new PDOMCPPBaseClone(this);
}
private static class PDOMCPPBaseClone implements ICPPBase, ICPPInternalBase {
private ICPPBase base;
private IBinding baseClass = null;
public PDOMCPPBaseClone(ICPPBase base) {
this.base = base;
}
public IBinding getBaseClass() {
if (baseClass == null) {
return base.getBaseClass();
}
return baseClass;
}
public IName getBaseClassSpecifierName() {
return base.getBaseClassSpecifierName();
}
public int getVisibility() {
return base.getVisibility();
}
public boolean isVirtual() {
return base.isVirtual();
}
public void setBaseClass(IBinding binding) {
baseClass = binding;
}
@Override
public ICPPBase clone() {
return new PDOMCPPBaseClone(this);
}
}
}