/*******************************************************************************
* Copyright (c) 2009 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:
* IBM Corporation - initial API and implementation
* Zend Technologies
*******************************************************************************/
package org.eclipse.php.core.compiler.ast.nodes;
import java.util.Collection;
import java.util.List;
import org.eclipse.dltk.ast.ASTVisitor;
import org.eclipse.dltk.ast.expressions.Expression;
import org.eclipse.dltk.utils.CorePrinter;
import org.eclipse.php.internal.core.compiler.ast.visitor.ASTPrintVisitor;
/**
* Represents a list expression. The list contains variables and/or other lists.
*
* <pre>
* e.g.
*
* <pre>
* list($a,$b) = array (1,2), list($a, list($b, $c))
*/
public class ListVariable extends Expression {
private final List<? extends Expression> variables;
public ListVariable(int start, int end, List<? extends Expression> variables) {
super(start, end);
assert variables != null;
this.variables = variables;
}
public void traverse(ASTVisitor visitor) throws Exception {
final boolean visit = visitor.visit(this);
if (visit) {
for (Expression variable : variables) {
variable.traverse(visitor);
}
}
visitor.endvisit(this);
}
public int getKind() {
return ASTNodeKinds.LIST_VARIABLE;
}
public Collection<? extends Expression> getVariables() {
return variables;
}
/**
* We don't print anything - we use {@link ASTPrintVisitor} instead
*/
public final void printNode(CorePrinter output) {
}
public String toString() {
return ASTPrintVisitor.toXMLString(this);
}
}