Copyright (c) 2013, 2019 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
/*******************************************************************************
 * Copyright (c) 2013, 2019 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;

Type node for an intersection type in a cast expression (added in JLS8 API).
IntersectionType:
   Type & Type { & Type }


This kind of node is used only inside a cast expression.

Since:
3.10
@noinstantiate
This class is not intended to be instantiated by clients./**
 * Type node for an intersection type in a cast expression (added in JLS8 API).
 * <pre>
 * IntersectionType:
 *    Type <b>&amp;</b> Type { <b>&amp;</b> Type }
 * </pre>
 * <p>
 * This kind of node is used only inside a cast expression.
 * </p>
 *
 * @since 3.10
 * @noinstantiate This class is not intended to be instantiated by clients.
 */
@SuppressWarnings({"rawtypes", "unchecked"})
public class IntersectionType extends Type {

	
The "types" structural property of this node type (element type: Type). /**
	 * The "types" structural property of this node type (element type: {@link Type}).
	 */
	public static final ChildListPropertyDescriptor TYPES_PROPERTY =
		new ChildListPropertyDescriptor(IntersectionType.class, "types", Type.class, CYCLE_RISK); //$NON-NLS-1$

	
A list of property descriptors (element type: StructuralPropertyDescriptor), or null if uninitialized. /**
	 * A list of property descriptors (element type:
	 * {@link StructuralPropertyDescriptor}),
	 * or null if uninitialized.
	 */
	private static final List PROPERTY_DESCRIPTORS_8_0;

	static {
		List propertyList = new ArrayList(2);
		createPropertyList(IntersectionType.class, propertyList);
		addProperty(TYPES_PROPERTY, propertyList);
		PROPERTY_DESCRIPTORS_8_0 = reapPropertyList(propertyList);
	}

	
Returns a list of structural property descriptors for this node type.
Clients must not modify the result.
Params:
apiLevel – the API level; one of the
AST.JLS* constants
Returns:
a list of property descriptors (element type: StructuralPropertyDescriptor)/**
	 * 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
	 * <code>AST.JLS*</code> constants
	 * @return a list of property descriptors (element type:
	 * {@link StructuralPropertyDescriptor})
	 */
	public static List propertyDescriptors(int apiLevel) {
		return PROPERTY_DESCRIPTORS_8_0;
	}

	
The list of types (element type: Type). Defaults to an empty list. /**
	 * The list of types (element type: {@link Type}).  Defaults to an empty list.
	 */
	private ASTNode.NodeList types = new ASTNode.NodeList(TYPES_PROPERTY);

	
Creates a new unparented node for an intersection type owned by the given AST.
By default, it has no types.

N.B. This constructor is package-private.

Params:
ast – the AST that is to own this node/**
	 * Creates a new unparented node for an intersection type owned by the given AST.
	 * By default, it has no types.<p>
	 * 
	 * N.B. This constructor is package-private.
	 * </p>
	 *
	 * @param ast the AST that is to own this node
	 */
	IntersectionType(AST ast) {
		super(ast);
		unsupportedIn2_3_4();
	}

	@Override
	final List internalStructuralPropertiesForType(int apiLevel) {
		return propertyDescriptors(apiLevel);
	}

	@Override
	final List internalGetChildListProperty(ChildListPropertyDescriptor property) {
		if (property == TYPES_PROPERTY) {
			return types();
		}
		// allow default implementation to flag the error
		return super.internalGetChildListProperty(property);
	}

	@Override
	final int getNodeType0() {
		return INTERSECTION_TYPE;
	}

	@Override
	ASTNode clone0(AST target) {
		IntersectionType result = new IntersectionType(target);
		result.setSourceRange(getStartPosition(), getLength());
		result.types().addAll(
				ASTNode.copySubtrees(target, types()));
		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) {
		boolean visitChildren = visitor.visit(this);
		if (visitChildren) {
			// visit children in normal left to right reading order
			acceptChildren(visitor, this.types);
		}
		visitor.endVisit(this);
	}

	
Returns the live ordered list of types in this intersection type.
Adding and removing nodes from this list affects this node
dynamically. All nodes in this list must be
Types; attempts to add any other
type of node will trigger an exception.
Returns:
the live list of types in this intersection type (element type: Type)/**
	 * Returns the live ordered list of types in this intersection type.
	 * Adding and removing nodes from this list affects this node
	 * dynamically. All nodes in this list must be
	 * <code>Type</code>s; attempts to add any other
	 * type of node will trigger an exception.
	 *
	 * @return the live list of types in this intersection type (element type: {@link Type})
	 */
	public List types() {
		return this.types;
	}

	@Override
	int memSize() {
		return BASE_NODE_SIZE + 1 * 4;
	}

	@Override
	int treeSize() {
		return
			memSize()
			+ this.types.listSize();
	}
}