/*******************************************************************************
* Copyright (c) 2000, 2008 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
*******************************************************************************/
package org.eclipse.jdt.core.dom;
import java.util.ArrayList;
import java.util.List;
/**
* Static or instance initializer AST node type.
*
* <pre>
* Initializer:
* [ <b>static</b> ] Block
* </pre>
*
* @since 2.0
* @noinstantiate This class is not intended to be instantiated by clients.
*/
public class Initializer extends BodyDeclaration {
/**
* The "javadoc" structural property of this node type.
*
* @since 3.0
*/
public static final ChildPropertyDescriptor JAVADOC_PROPERTY=
internalJavadocPropertyFactory(Initializer.class);
/**
* The "modifiers" structural property of this node type (JLS2 API only).
*
* @since 3.0
*/
public static final SimplePropertyDescriptor MODIFIERS_PROPERTY=
internalModifiersPropertyFactory(Initializer.class);
/**
* The "modifiers" structural property of this node type (added in JLS3 API).
*
* @since 3.1
*/
public static final ChildListPropertyDescriptor MODIFIERS2_PROPERTY=
internalModifiers2PropertyFactory(Initializer.class);
/**
* The "body" structural property of this node type.
*
* @since 3.0
*/
public static final ChildPropertyDescriptor BODY_PROPERTY=
new ChildPropertyDescriptor(Initializer.class, "body", Block.class, MANDATORY, CYCLE_RISK); //$NON-NLS-1$
/**
* A list of property descriptors (element type: {@link StructuralPropertyDescriptor}), or null
* if uninitialized.
*
* @since 3.0
*/
private static final List PROPERTY_DESCRIPTORS_2_0;
/**
* A list of property descriptors (element type: {@link StructuralPropertyDescriptor}), or null
* if uninitialized.
*
* @since 3.1
*/
private static final List PROPERTY_DESCRIPTORS_3_0;
static {
List properyList= new ArrayList(4);
createPropertyList(Initializer.class, properyList);
addProperty(JAVADOC_PROPERTY, properyList);
addProperty(MODIFIERS_PROPERTY, properyList);
addProperty(BODY_PROPERTY, properyList);
PROPERTY_DESCRIPTORS_2_0= reapPropertyList(properyList);
properyList= new ArrayList(4);
createPropertyList(Initializer.class, properyList);
addProperty(JAVADOC_PROPERTY, properyList);
addProperty(MODIFIERS2_PROPERTY, properyList);
addProperty(BODY_PROPERTY, properyList);
PROPERTY_DESCRIPTORS_3_0= 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 <code>AST.JLS*</code> constants
*
* @return a list of property descriptors (element type: {@link StructuralPropertyDescriptor})
* @since 3.0
*/
public static List propertyDescriptors(int apiLevel) {
if (apiLevel == AST.JLS2_INTERNAL) {
return PROPERTY_DESCRIPTORS_2_0;
} else {
return PROPERTY_DESCRIPTORS_3_0;
}
}
/**
* The initializer body; lazily initialized; defaults to an empty block.
*/
private Block body= null;
/**
* Creates a new AST node for an initializer declaration owned by the given AST. By default, the
* initializer has no modifiers and an empty block. The javadoc comment is not used for
* initializers.
* <p>
* N.B. This constructor is package-private.
* </p>
*
* @param ast the AST that is to own this node
*/
Initializer(AST ast) {
super(ast);
}
/* (omit javadoc for this method)
* Method declared on ASTNode.
* @since 3.0
*/
final List internalStructuralPropertiesForType(int apiLevel) {
return propertyDescriptors(apiLevel);
}
/* (omit javadoc for this method)
* Method declared on ASTNode.
*/
final int internalGetSetIntProperty(SimplePropertyDescriptor property, boolean get, int value) {
if (property == MODIFIERS_PROPERTY) {
if (get) {
return getModifiers();
} else {
internalSetModifiers(value);
return 0;
}
}
// allow default implementation to flag the error
return super.internalGetSetIntProperty(property, get, value);
}
/* (omit javadoc for this method)
* Method declared on ASTNode.
*/
final ASTNode internalGetSetChildProperty(ChildPropertyDescriptor property, boolean get, ASTNode child) {
if (property == JAVADOC_PROPERTY) {
if (get) {
return getJavadoc();
} else {
setJavadoc((Javadoc)child);
return null;
}
}
if (property == BODY_PROPERTY) {
if (get) {
return getBody();
} else {
setBody((Block)child);
return null;
}
}
// allow default implementation to flag the error
return super.internalGetSetChildProperty(property, get, child);
}
/* (omit javadoc for this method)
* Method declared on ASTNode.
*/
final List internalGetChildListProperty(ChildListPropertyDescriptor property) {
if (property == MODIFIERS2_PROPERTY) {
return modifiers();
}
// allow default implementation to flag the error
return super.internalGetChildListProperty(property);
}
/* (omit javadoc for this method)
* Method declared on BodyDeclaration.
*/
final ChildPropertyDescriptor internalJavadocProperty() {
return JAVADOC_PROPERTY;
}
/* (omit javadoc for this method)
* Method declared on BodyDeclaration.
*/
final ChildListPropertyDescriptor internalModifiers2Property() {
return MODIFIERS2_PROPERTY;
}
/* (omit javadoc for this method)
* Method declared on BodyDeclaration.
*/
final SimplePropertyDescriptor internalModifiersProperty() {
return MODIFIERS_PROPERTY;
}
/* (omit javadoc for this method)
* Method declared on ASTNode.
*/
final int getNodeType0() {
return INITIALIZER;
}
/* (omit javadoc for this method)
* Method declared on ASTNode.
*/
ASTNode clone0(AST target) {
Initializer result= new Initializer(target);
result.setSourceRange(getStartPosition(), getLength());
if (this.ast.apiLevel == AST.JLS2_INTERNAL) {
result.internalSetModifiers(getModifiers());
}
if (this.ast.apiLevel >= AST.JLS3) {
result.modifiers().addAll(ASTNode.copySubtrees(target, modifiers()));
}
result.setJavadoc(
(Javadoc)ASTNode.copySubtree(target, getJavadoc()));
result.setBody((Block)getBody().clone(target));
return result;
}
/* (omit javadoc for this method)
* Method declared on ASTNode.
*/
final boolean subtreeMatch0(ASTMatcher matcher, Object other) {
// dispatch to correct overloaded match method
return matcher.match(this, other);
}
/* (omit javadoc for this method)
* Method declared on ASTNode.
*/
void accept0(ASTVisitor visitor) {
boolean visitChildren= visitor.visit(this);
if (visitChildren) {
acceptChild(visitor, getJavadoc());
if (this.ast.apiLevel >= AST.JLS3) {
acceptChildren(visitor, this.modifiers);
}
acceptChild(visitor, getBody());
}
visitor.endVisit(this);
}
/**
* Returns the body of this initializer declaration.
*
* @return the initializer body
*/
public Block getBody() {
if (this.body == null) {
// lazy init must be thread-safe for readers
synchronized (this) {
if (this.body == null) {
preLazyInit();
this.body= new Block(this.ast);
postLazyInit(this.body, BODY_PROPERTY);
}
}
}
return this.body;
}
/**
* Sets the body of this initializer declaration.
*
* @param body the block node
* @exception IllegalArgumentException if:
* <ul>
* <li>the node belongs to a different AST</li>
* <li>the node already has a parent</li>
* <li>a cycle in would be created</li>
* </ul>
*/
public void setBody(Block body) {
if (body == null) {
throw new IllegalArgumentException();
}
ASTNode oldChild= this.body;
preReplaceChild(oldChild, body, BODY_PROPERTY);
this.body= body;
postReplaceChild(oldChild, body, BODY_PROPERTY);
}
/* (omit javadoc for this method)
* Method declared on ASTNode.
*/
int memSize() {
return super.memSize() + 1 * 4;
}
/* (omit javadoc for this method)
* Method declared on ASTNode.
*/
int treeSize() {
return memSize()
+ (this.optionalDocComment == null ? 0 : getJavadoc().treeSize())
+ (this.modifiers == null ? 0 : this.modifiers.listSize())
+ (this.body == null ? 0 : getBody().treeSize());
}
}