| /******************************************************************************* |
| * 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; |
| |
| /** |
| * 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. |
| */ |
| @SuppressWarnings({"rawtypes"}) |
| public class Initializer extends BodyDeclaration { |
| |
| /** |
| * The "javadoc" structural property of this node type (child type: {@link Javadoc}). |
| * @since 3.0 |
| */ |
| public static final ChildPropertyDescriptor JAVADOC_PROPERTY = |
| internalJavadocPropertyFactory(Initializer.class); |
| |
| /** |
| * The "modifiers" structural property of this node type (type: {@link Integer}) (JLS2 API only). |
| * @since 3.0 |
| * @deprecated In the JLS3 API, this property is replaced by {@link #MODIFIERS2_PROPERTY}. |
| */ |
| public static final SimplePropertyDescriptor MODIFIERS_PROPERTY = |
| internalModifiersPropertyFactory(Initializer.class); |
| |
| /** |
| * The "modifiers" structural property of this node type (element type: {@link IExtendedModifier}) (added in JLS3 API). |
| * @since 3.1 |
| */ |
| public static final ChildListPropertyDescriptor MODIFIERS2_PROPERTY = |
| internalModifiers2PropertyFactory(Initializer.class); |
| |
| /** |
| * The "body" structural property of this node type (child type: {@link Block}). |
| * @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 |
| */ |
| @Override |
| final List internalStructuralPropertiesForType(int apiLevel) { |
| return propertyDescriptors(apiLevel); |
| } |
| |
| @Override |
| 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); |
| } |
| |
| @Override |
| 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); |
| } |
| |
| @Override |
| final List internalGetChildListProperty(ChildListPropertyDescriptor property) { |
| if (property == MODIFIERS2_PROPERTY) { |
| return modifiers(); |
| } |
| // allow default implementation to flag the error |
| return super.internalGetChildListProperty(property); |
| } |
| |
| @Override |
| final ChildPropertyDescriptor internalJavadocProperty() { |
| return JAVADOC_PROPERTY; |
| } |
| |
| @Override |
| final ChildListPropertyDescriptor internalModifiers2Property() { |
| return MODIFIERS2_PROPERTY; |
| } |
| |
| @Override |
| final SimplePropertyDescriptor internalModifiersProperty() { |
| return MODIFIERS_PROPERTY; |
| } |
| |
| @Override |
| final int getNodeType0() { |
| return INITIALIZER; |
| } |
| |
| @Override |
| 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_INTERNAL) { |
| result.modifiers().addAll(ASTNode.copySubtrees(target, modifiers())); |
| } |
| result.setJavadoc( |
| (Javadoc) ASTNode.copySubtree(target, getJavadoc())); |
| result.setBody((Block) getBody().clone(target)); |
| 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) { |
| acceptChild(visitor, getJavadoc()); |
| if (this.ast.apiLevel >= AST.JLS3_INTERNAL) { |
| 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); |
| } |
| |
| @Override |
| int memSize() { |
| return super.memSize() + 1 * 4; |
| } |
| |
| @Override |
| int treeSize() { |
| return |
| memSize() |
| + (this.optionalDocComment == null ? 0 : getJavadoc().treeSize()) |
| + (this.modifiers == null ? 0 : this.modifiers.listSize()) |
| + (this.body == null ? 0 : getBody().treeSize()); |
| } |
| } |
| |