/*******************************************************************************
* Copyright (c) 2004, 2015 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)
* Sergey Prigogin (Google)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.cpp;
import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.IASTExpression;
import org.eclipse.cdt.core.dom.ast.IASTInitializerClause;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IASTReturnStatement;
import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.ExecIncomplete;
import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.ExecReturn;
public class CPPASTReturnStatement extends CPPASTAttributeOwner implements IASTReturnStatement, ICPPExecutionOwner {
private IASTInitializerClause retValue;
public CPPASTReturnStatement() {
}
public CPPASTReturnStatement(IASTInitializerClause retValue) {
setReturnArgument(retValue);
}
@Override
public CPPASTReturnStatement copy() {
return copy(CopyStyle.withoutLocations);
}
@Override
public CPPASTReturnStatement copy(CopyStyle style) {
CPPASTReturnStatement copy =
new CPPASTReturnStatement(retValue == null ? null : retValue.copy(style));
return copy(copy, style);
}
@Override
public IASTInitializerClause getReturnArgument() {
return retValue;
}
@Override
public IASTExpression getReturnValue() {
if (retValue instanceof IASTExpression) {
return (IASTExpression) retValue;
}
return null;
}
@Override
public void setReturnValue(IASTExpression returnValue) {
setReturnArgument(returnValue);
}
@Override
public void setReturnArgument(IASTInitializerClause arg) {
assertNotFrozen();
retValue = arg;
if (arg != null) {
arg.setParent(this);
arg.setPropertyInParent(RETURNVALUE);
}
}
@Override
public boolean accept(ASTVisitor action) {
if (action.shouldVisitStatements) {
switch (action.visit(this)) {
case ASTVisitor.PROCESS_ABORT: return false;
case ASTVisitor.PROCESS_SKIP: return true;
default: break;
}
}
if (!acceptByAttributeSpecifiers(action)) return false;
if (retValue != null && !retValue.accept(action)) return false;
if (action.shouldVisitStatements) {
switch (action.leave(this)) {
case ASTVisitor.PROCESS_ABORT: return false;
case ASTVisitor.PROCESS_SKIP: return true;
default: break;
}
}
return true;
}
@Override
public void replace(IASTNode child, IASTNode other) {
if (child == retValue) {
other.setPropertyInParent(child.getPropertyInParent());
other.setParent(child.getParent());
retValue = (IASTInitializerClause) other;
return;
}
super.replace(child, other);
}
@Override
public ICPPExecution getExecution() {
if (retValue instanceof ICPPEvaluationOwner) {
ICPPEvaluationOwner evalOwner = (ICPPEvaluationOwner) retValue;
return new ExecReturn(evalOwner.getEvaluation());
}
return ExecIncomplete.INSTANCE;
}
}