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/*******************************************************************************
* Copyright (c) 2000, 2013 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;
/**
* Boolean literal node.
*
*
* BooleanLiteral:
* true
* false
*
*
* @since 2.0
* @noinstantiate This class is not intended to be instantiated by clients.
*/
@SuppressWarnings("rawtypes")
public class BooleanLiteral extends Expression {
/**
* The "booleanValue" structural property of this node type (type: {@link Boolean}).
* @since 3.0
*/
public static final SimplePropertyDescriptor BOOLEAN_VALUE_PROPERTY =
new SimplePropertyDescriptor(BooleanLiteral.class, "booleanValue", boolean.class, MANDATORY); //$NON-NLS-1$
/**
* A list of property descriptors (element type:
* {@link StructuralPropertyDescriptor}),
* or null if uninitialized.
*/
private static final List PROPERTY_DESCRIPTORS;
static {
List properyList = new ArrayList(2);
createPropertyList(BooleanLiteral.class, properyList);
addProperty(BOOLEAN_VALUE_PROPERTY, properyList);
PROPERTY_DESCRIPTORS = reapPropertyList(properyList);
}
/**
* 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})
* @since 3.0
*/
public static List propertyDescriptors(int apiLevel) {
return PROPERTY_DESCRIPTORS;
}
/**
* The boolean; defaults to the literal for false
.
*/
private boolean value = false;
/**
* Creates a new unparented boolean literal node owned by the given AST.
*
* N.B. This constructor is package-private.
*
*
* @param ast the AST that is to own this node
*/
BooleanLiteral(AST ast) {
super(ast);
}
@Override
final List internalStructuralPropertiesForType(int apiLevel) {
return propertyDescriptors(apiLevel);
}
@Override
final boolean internalGetSetBooleanProperty(SimplePropertyDescriptor property, boolean get, boolean newValue) {
if (property == BOOLEAN_VALUE_PROPERTY) {
if (get) {
return booleanValue();
} else {
setBooleanValue(newValue);
return false;
}
}
// allow default implementation to flag the error
return super.internalGetSetBooleanProperty(property, get, newValue);
}
@Override
final int getNodeType0() {
return BOOLEAN_LITERAL;
}
@Override
ASTNode clone0(AST target) {
BooleanLiteral result = new BooleanLiteral(target);
result.setSourceRange(getStartPosition(), getLength());
result.setBooleanValue(booleanValue());
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);
}
/**
* Returns the boolean value of this boolean literal node.
*
* @return true
for the boolean literal spelled
* "true"
, and false
for the boolean literal
* spelled "false"
.
*/
public boolean booleanValue() {
return this.value;
}
/**
* Sets the boolean value of this boolean literal node.
*
* @param value true
for the boolean literal spelled
* "true"
, and false
for the boolean literal
* spelled "false"
.
*/
public void setBooleanValue(boolean value) {
preValueChange(BOOLEAN_VALUE_PROPERTY);
this.value = value;
postValueChange(BOOLEAN_VALUE_PROPERTY);
}
@Override
int memSize() {
return BASE_NODE_SIZE + 1 * 4;
}
@Override
int treeSize() {
return memSize();
}
}