/*******************************************************************************
* Copyright (c) 2007, 2015 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:
* Bryan Wilkinson (QNX) - Initial API and implementation
* Andrew Ferguson (Symbian)
* 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.IType;
import org.eclipse.cdt.core.dom.ast.ITypedef;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPClassType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateArgument;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateDefinition;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateInstance;
import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPClassInstance;
import org.eclipse.cdt.internal.core.dom.parser.cpp.ICPPClassSpecializationScope;
import org.eclipse.cdt.internal.core.index.IIndexCPPBindingConstants;
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;
/**
* The result of instantiating a class template or an explicit specialization of a class template.
* The {@link #isExplicitSpecialization()} method is used to distinguish between the two cases.
*/
class PDOMCPPClassInstance extends PDOMCPPClassSpecialization implements ICPPTemplateInstance {
private static final int ARGUMENTS = PDOMCPPClassSpecialization.RECORD_SIZE + 0;
/**
* The size in bytes of a PDOMCPPClassInstance record in the database.
*/
@SuppressWarnings("hiding")
protected static final int RECORD_SIZE = PDOMCPPClassSpecialization.RECORD_SIZE + 4;
private volatile ICPPTemplateArgument[] fTemplateArguments;
public PDOMCPPClassInstance(PDOMCPPLinkage linkage, PDOMNode parent, ICPPClassType classType, PDOMBinding orig)
throws CoreException {
super(linkage, parent, classType, orig);
final ICPPTemplateInstance asInstance= (ICPPTemplateInstance) classType;
// Defer storing of template arguments to the post-process
// to avoid infinite recursion when the evaluation of a non-type
// template argument tries to store its template definition.
// Until the post-process runs, temporarily store the input (possibly
// non-PDOM) arguments.
fTemplateArguments = asInstance.getTemplateArguments();
linkage.new ConfigureClassInstance(this);
}
public PDOMCPPClassInstance(PDOMLinkage linkage, long bindingRecord) {
super(linkage, bindingRecord);
}
@Override
protected int getRecordSize() {
return RECORD_SIZE;
}
@Override
public int getNodeType() {
return IIndexCPPBindingConstants.CPP_CLASS_INSTANCE;
}
@Override
public ICPPTemplateDefinition getTemplateDefinition() {
return (ICPPTemplateDefinition) getSpecializedBinding();
}
@Override
public ICPPTemplateArgument[] getTemplateArguments() {
if (fTemplateArguments == null) {
try {
final long rec= getPDOM().getDB().getRecPtr(record + ARGUMENTS);
fTemplateArguments = PDOMCPPArgumentList.getArguments(this, rec);
} catch (CoreException e) {
CCorePlugin.log(e);
}
}
return fTemplateArguments;
}
public void storeTemplateArguments() {
try {
// fTemplateArguments here are the temporarily stored, possibly non-PDOM arguments stored
// by the constructor. Construct the PDOM arguments and store them.
final long argListRec= PDOMCPPArgumentList.putArguments(this, fTemplateArguments);
getDB().putRecPtr(record + ARGUMENTS, argListRec);
// Read the stored arguments next time getTemplateArguments() is called.
fTemplateArguments = null;
} catch (CoreException e) {
CCorePlugin.log(e);
}
}
@Override
public boolean isExplicitSpecialization() {
return !(getCompositeScope() instanceof ICPPClassSpecializationScope);
}
@Override
public boolean isSameType(IType type) {
if (type instanceof ITypedef) {
return type.isSameType(this);
}
if (type instanceof PDOMNode) {
PDOMNode node= (PDOMNode) type;
if (node.getPDOM() == getPDOM()) {
return node.getRecord() == getRecord();
}
}
return CPPClassInstance.isSameClassInstance(this, type);
}
}