/*******************************************************************************
* Copyright (c) 2021 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.core.dom;
import java.util.ArrayList;
import java.util.List;
/**
* Null Pattern node.
*
* @since 3.27
* @noreference This class is not intended to be referenced by clients.
* @noinstantiate This class is not intended to be instantiated by clients.
*/
@SuppressWarnings("rawtypes")
public class NullPattern extends Pattern {
/**
* A list of property descriptors (element type:
* {@link StructuralPropertyDescriptor}),
* or null if uninitialized.
*/
private static final List PROPERTY_DESCRIPTORS;
static {
List propertyList = new ArrayList(1);
createPropertyList(NullPattern.class, propertyList);
PROPERTY_DESCRIPTORS = reapPropertyList(propertyList);
}
/**
* Returns a list of structural property descriptors for this node type.
* Clients must not modify the result.
*
* @param apiLevel the API level; one of the
* AST.JLS*
constants
* @return a list of property descriptors (element type:
* {@link StructuralPropertyDescriptor})
*/
public static List propertyDescriptors(int apiLevel) {
return PROPERTY_DESCRIPTORS;
}
/**
* Creates a new unparented null literal node owned by the given AST.
*
* N.B. This constructor is package-private. *
* * @param ast the AST that is to own this node */ NullPattern(AST ast) { super(ast); } @Override final List internalStructuralPropertiesForType(int apiLevel) { return propertyDescriptors(apiLevel); } @Override final int getNodeType0() { return NULL_PATTERN; } @Override ASTNode clone0(AST target) { NullPattern result = new NullPattern(target); result.setSourceRange(getStartPosition(), getLength()); return result; } @Override final boolean subtreeMatch0(ASTMatcher matcher, Object other) { // dispatch to correct overloaded match method return matcher.match(this, other); } @Override void accept0(ASTVisitor visitor) { visitor.visit(this); visitor.endVisit(this); } @Override int memSize() { return BASE_NODE_SIZE; } @Override int treeSize() { return memSize(); } @Override public List