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/*******************************************************************************
* Copyright (c) 2006, 2014 QNX Software Systems and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* QNX - Initial API and implementation
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.core.pdom.dom.cpp;
import static org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.SemanticUtil.TDEF;
import static org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.SemanticUtil.getNestedType;
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.ISemanticProblem;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPBase;
import org.eclipse.cdt.internal.core.dom.parser.ProblemType;
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.PDOMLinkage;
import org.eclipse.cdt.internal.core.pdom.dom.PDOMName;
import org.eclipse.core.runtime.CoreException;
/**
* @author Doug Schaefer
*/
class PDOMCPPBase implements ICPPBase, ICPPInternalBase {
static final int CLASS_DEFINITION = 0;
private static final int BASECLASS_TYPE = CLASS_DEFINITION + Database.PTR_SIZE;
private static final int NEXTBASE = BASECLASS_TYPE + Database.TYPE_SIZE;
private static final int FLAGS = NEXTBASE + Database.PTR_SIZE;
protected static final int RECORD_SIZE = FLAGS + 1;
private static final int FLAGS_VISIBILITY_MASK = 0x03;
private static final int FLAGS_VIRTUAL = 0x04;
private static final int FLAGS_INHERITED_CONSTRUCTORS_SOURCE = 0x08;
private final PDOMLinkage linkage;
private final long record;
private IType fCachedBaseClass;
public PDOMCPPBase(PDOMLinkage linkage, long record) {
this.linkage = linkage;
this.record = record;
}
public PDOMCPPBase(PDOMLinkage linkage, ICPPBase base, PDOMName classDefName) throws CoreException {
Database db = linkage.getDB();
this.linkage = linkage;
this.record = db.malloc(RECORD_SIZE);
db.putRecPtr(record + CLASS_DEFINITION, classDefName.getRecord());
linkage.storeType(record + BASECLASS_TYPE, base.getBaseClassType());
byte flags = (byte) (base.getVisibility() | (base.isVirtual() ? FLAGS_VIRTUAL : 0)
| (base.isInheritedConstructorsSource() ? FLAGS_INHERITED_CONSTRUCTORS_SOURCE : 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);
}
@Override
public PDOMName getClassDefinitionName() {
try {
long rec = getDB().getRecPtr(record + CLASS_DEFINITION);
if (rec != 0) {
return new PDOMName(linkage, rec);
}
} catch (CoreException e) {
CCorePlugin.log(e);
}
return null;
}
@Override
public IType getBaseClassType() {
if (fCachedBaseClass == null) {
try {
fCachedBaseClass= linkage.loadType(record + BASECLASS_TYPE);
} catch (CoreException e) {
fCachedBaseClass= new ProblemType(ISemanticProblem.TYPE_NOT_PERSISTED);
}
}
return fCachedBaseClass;
}
@Override
public IBinding getBaseClass() {
IType type= getBaseClassType();
type = getNestedType(type, TDEF);
if (type instanceof IBinding)
return (IBinding) type;
return null;
}
@Override
public int getVisibility() {
try {
return getFlags() & FLAGS_VISIBILITY_MASK;
} catch (CoreException e) {
CCorePlugin.log(e);
return 0;
}
}
@Override
public boolean isVirtual() {
try {
return (getFlags() & FLAGS_VIRTUAL) != 0;
} catch (CoreException e) {
CCorePlugin.log(e);
return false;
}
}
@Override
public boolean isInheritedConstructorsSource() {
try {
return (getFlags() & FLAGS_INHERITED_CONSTRUCTORS_SOURCE) != 0;
} catch (CoreException e) {
CCorePlugin.log(e);
return false;
}
}
public void delete() throws CoreException {
getDB().free(record);
}
@Override
public void setBaseClass(IBinding binding) {
throw new UnsupportedOperationException();
}
@Override
public void setBaseClass(IType binding) {
throw new UnsupportedOperationException();
}
@Override
public ICPPBase clone() {
return new PDOMCPPBaseClone(this);
}
private static class PDOMCPPBaseClone implements ICPPBase, ICPPInternalBase {
private final ICPPBase base;
private IType baseClass;
public PDOMCPPBaseClone(ICPPBase base) {
this.base = base;
}
@Override
public IBinding getBaseClass() {
IType type= getBaseClassType();
type = getNestedType(type, TDEF);
if (type instanceof IBinding)
return (IBinding) type;
return null;
}
@Override
public IType getBaseClassType() {
if (baseClass == null) {
baseClass= base.getBaseClassType();
}
return baseClass;
}
@Override
public IName getClassDefinitionName() {
return base.getClassDefinitionName();
}
@Override
public int getVisibility() {
return base.getVisibility();
}
@Override
public boolean isVirtual() {
return base.isVirtual();
}
@Override
public boolean isInheritedConstructorsSource() {
return base.isInheritedConstructorsSource();
}
@Override
public void setBaseClass(IBinding binding) {
if (binding instanceof IType)
baseClass = (IType) binding;
}
@Override
public void setBaseClass(IType binding) {
baseClass = binding;
}
@Override
public ICPPBase clone() {
return new PDOMCPPBaseClone(this);
}
}
}
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