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/*******************************************************************************
* Copyright (c) 2007, 2009 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
* Markus Schorn (Wind River Systems)
* Sergey Prigogin (Google)
*******************************************************************************/
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.cpp.ICPPFunctionTemplate;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateArgument;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateInstance;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateNonTypeParameter;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateParameter;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateTemplateParameter;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateTypeParameter;
import org.eclipse.cdt.internal.core.dom.parser.cpp.ICPPInstanceCache;
import org.eclipse.cdt.internal.core.index.IIndexCPPBindingConstants;
import org.eclipse.cdt.internal.core.pdom.db.Database;
import org.eclipse.cdt.internal.core.pdom.dom.IPDOMMemberOwner;
import org.eclipse.cdt.internal.core.pdom.dom.PDOMLinkage;
import org.eclipse.cdt.internal.core.pdom.dom.PDOMNode;
import org.eclipse.core.runtime.CoreException;
/**
* Represents a function template, base class for method/constructor templates.
*/
class PDOMCPPFunctionTemplate extends PDOMCPPFunction
implements ICPPFunctionTemplate, ICPPInstanceCache, IPDOMMemberOwner, IPDOMCPPTemplateParameterOwner {
private static final int TEMPLATE_PARAMS = PDOMCPPFunction.RECORD_SIZE + 0;
/**
* The size in bytes of a PDOMCPPFunctionTemplate record in the database.
*/
@SuppressWarnings("hiding")
protected static final int RECORD_SIZE = PDOMCPPFunction.RECORD_SIZE + 4;
private IPDOMCPPTemplateParameter[] params; // Cached template parameters.
public PDOMCPPFunctionTemplate(PDOMCPPLinkage linkage, PDOMNode parent, ICPPFunctionTemplate template)
throws CoreException, DOMException {
super(linkage, parent, template, false);
final ICPPTemplateParameter[] origParams= template.getTemplateParameters();
params = PDOMTemplateParameterArray.createPDOMTemplateParameters(linkage, this, origParams);
final Database db = getDB();
int rec= PDOMTemplateParameterArray.putArray(db, params);
db.putInt(record + TEMPLATE_PARAMS, rec);
linkage.new ConfigureFunctionTemplate(template, this);
}
public PDOMCPPFunctionTemplate(PDOMLinkage linkage, int bindingRecord) {
super(linkage, bindingRecord);
}
@Override
public void update(PDOMLinkage linkage, IBinding name) {
// no support for updating templates, yet.
}
@Override
protected int getRecordSize() {
return RECORD_SIZE;
}
@Override
public int getNodeType() {
return IIndexCPPBindingConstants.CPP_FUNCTION_TEMPLATE;
}
public IPDOMCPPTemplateParameter[] getTemplateParameters() {
if (params == null) {
try {
int rec= getDB().getInt(record + TEMPLATE_PARAMS);
if (rec == 0) {
params= IPDOMCPPTemplateParameter.EMPTY_ARRAY;
} else {
params= PDOMTemplateParameterArray.getArray(this, rec);
}
} catch (CoreException e) {
CCorePlugin.log(e);
params = IPDOMCPPTemplateParameter.EMPTY_ARRAY;
}
}
return params;
}
public ICPPTemplateInstance getInstance(ICPPTemplateArgument[] arguments) {
return PDOMInstanceCache.getCache(this).getInstance(arguments);
}
public void addInstance(ICPPTemplateArgument[] arguments, ICPPTemplateInstance instance) {
PDOMInstanceCache.getCache(this).addInstance(arguments, instance);
}
public ICPPTemplateInstance[] getAllInstances() {
return PDOMInstanceCache.getCache(this).getAllInstances();
}
public ICPPTemplateParameter adaptTemplateParameter(ICPPTemplateParameter param) {
// Template parameters are identified by their position in the parameter list.
int pos = param.getParameterPosition();
ICPPTemplateParameter[] pars = getTemplateParameters();
if (pars == null || pos >= pars.length)
return null;
ICPPTemplateParameter result= pars[pos];
if (param instanceof ICPPTemplateTypeParameter) {
if (result instanceof ICPPTemplateTypeParameter)
return result;
} else if (param instanceof ICPPTemplateNonTypeParameter) {
if (result instanceof ICPPTemplateNonTypeParameter)
return result;
} else if (param instanceof ICPPTemplateTemplateParameter) {
if (result instanceof ICPPTemplateTemplateParameter)
return result;
}
return null;
}
}
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