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/*******************************************************************************
* Copyright (c) 2005, 2010 IBM Corporation 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:
* Andrew Niefer (IBM Corporation) - initial API and implementation
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.cpp;
import org.eclipse.cdt.core.dom.ast.DOMException;
import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTEqualsInitializer;
import org.eclipse.cdt.core.dom.ast.IASTExpression;
import org.eclipse.cdt.core.dom.ast.IASTInitializer;
import org.eclipse.cdt.core.dom.ast.IASTInitializerClause;
import org.eclipse.cdt.core.dom.ast.IASTName;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.IValue;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTInitializerList;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTParameterDeclaration;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPParameterPackType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateArgument;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateNonTypeParameter;
import org.eclipse.cdt.internal.core.dom.parser.Value;
import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.CPPVisitor;
/**
* Binding for a non-type template parameter.
*/
public class CPPTemplateNonTypeParameter extends CPPTemplateParameter implements
ICPPTemplateNonTypeParameter {
private IType type = null;
public CPPTemplateNonTypeParameter(IASTName name) {
super(name);
}
public IASTExpression getDefault() {
IASTInitializerClause def= getDefaultClause();
if (def instanceof IASTExpression) {
return (IASTExpression) def;
}
return null;
}
public IASTInitializerClause getDefaultClause() {
IASTName[] nds = getDeclarations();
if (nds == null || nds.length == 0)
return null;
for (IASTName name : nds) {
if (name != null) {
IASTNode parent = name.getParent();
assert parent instanceof IASTDeclarator;
if (parent instanceof IASTDeclarator) {
IASTDeclarator dtor = (IASTDeclarator) parent;
IASTInitializer initializer = dtor.getInitializer();
if (initializer instanceof IASTEqualsInitializer) {
return ((IASTEqualsInitializer) initializer).getInitializerClause();
}
}
}
}
return null;
}
public ICPPTemplateArgument getDefaultValue() {
IASTInitializerClause dc= getDefault();
IASTExpression d= null;
if (dc instanceof IASTExpression) {
d= (IASTExpression) dc;
} else if (dc instanceof ICPPASTInitializerList) {
ICPPASTInitializerList list= (ICPPASTInitializerList) dc;
switch(list.getSize()) {
case 0:
return new CPPTemplateArgument(Value.create(0), getType());
case 1:
dc= list.getClauses()[0];
if (dc instanceof IASTExpression) {
d= (IASTExpression) dc;
}
}
}
if (d == null)
return null;
IValue val= Value.create(d, Value.MAX_RECURSION_DEPTH);
IType t= getType();
return new CPPTemplateArgument(val, t);
}
public IType getType() {
if (type == null) {
IASTNode parent= getPrimaryDeclaration().getParent();
while (parent != null) {
if (parent instanceof ICPPASTParameterDeclaration) {
type= CPPVisitor.createParameterType((ICPPASTParameterDeclaration) parent, true);
break;
}
parent= parent.getParent();
}
}
return type;
}
public boolean isParameterPack() {
return getType() instanceof ICPPParameterPackType;
}
public boolean isStatic() throws DOMException {
return false;
}
public boolean isExtern() throws DOMException {
return false;
}
public boolean isAuto() throws DOMException {
return false;
}
public boolean isRegister() throws DOMException {
return false;
}
public IValue getInitialValue() {
return null;
}
public boolean isExternC() {
return false;
}
public boolean isMutable() {
return false;
}
}
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