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/*******************************************************************************
* Copyright (c) 2004, 2012 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:
* John Camelon (IBM) - Initial API and implementation
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.cpp;
import static org.eclipse.cdt.core.dom.ast.IASTExpression.ValueCategory.LVALUE;
import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.IASTTypeId;
import org.eclipse.cdt.core.dom.ast.IProblemType;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTTypeIdExpression;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.CPPVisitor;
import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.EvalFixed;
import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.EvalUnaryTypeID;
public class CPPASTTypeIdExpression extends ASTNode implements ICPPASTTypeIdExpression {
private int op;
private IASTTypeId typeId;
private ICPPEvaluation fEvaluation;
public CPPASTTypeIdExpression() {
}
public CPPASTTypeIdExpression(int op, IASTTypeId typeId) {
this.op = op;
setTypeId(typeId);
}
@Override
public CPPASTTypeIdExpression copy() {
return copy(CopyStyle.withoutLocations);
}
@Override
public CPPASTTypeIdExpression copy(CopyStyle style) {
CPPASTTypeIdExpression copy =
new CPPASTTypeIdExpression(op, typeId == null ? null : typeId.copy(style));
return copy(copy, style);
}
@Override
public int getOperator() {
return op;
}
@Override
public void setOperator(int value) {
assertNotFrozen();
this.op = value;
}
@Override
public void setTypeId(IASTTypeId typeId) {
assertNotFrozen();
this.typeId = typeId;
if (typeId != null) {
typeId.setParent(this);
typeId.setPropertyInParent(TYPE_ID);
}
}
@Override
public IASTTypeId getTypeId() {
return typeId;
}
@Override
public boolean accept(ASTVisitor action) {
if (action.shouldVisitExpressions) {
switch (action.visit(this)) {
case ASTVisitor.PROCESS_ABORT: return false;
case ASTVisitor.PROCESS_SKIP: return true;
default: break;
}
}
if (typeId != null && !typeId.accept(action)) return false;
if (action.shouldVisitExpressions) {
switch (action.leave(this)) {
case ASTVisitor.PROCESS_ABORT: return false;
case ASTVisitor.PROCESS_SKIP: return true;
default: break;
}
}
return true;
}
@Override
public ICPPEvaluation getEvaluation() {
if (fEvaluation == null) {
IType type= CPPVisitor.createType(typeId);
if (type == null || type instanceof IProblemType) {
fEvaluation= EvalFixed.INCOMPLETE;
} else {
fEvaluation= new EvalUnaryTypeID(op, type);
}
}
return fEvaluation;
}
@Override
public IType getExpressionType() {
return getEvaluation().getTypeOrFunctionSet(this);
}
@Override
public ValueCategory getValueCategory() {
return getEvaluation().getValueCategory(this);
}
@Override
public boolean isLValue() {
return getValueCategory() == LVALUE;
}
}
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