| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jdt.core.dom; |
| |
| /** |
| * Static or instance initializer AST node type. |
| * |
| * <pre> |
| * Initializer: |
| * [ <b>static</b> ] Block |
| * </pre> |
| * |
| * @since 2.0 |
| */ |
| public class Initializer extends BodyDeclaration { |
| |
| /** |
| * Mask containing all legal modifiers for this construct. |
| */ |
| private static final int LEGAL_MODIFIERS = Modifier.STATIC; |
| |
| /** |
| * The modifiers; bit-wise or of Modifier flags. |
| * Defaults to none. |
| */ |
| private int modifiers = 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. |
| */ |
| public int getNodeType() { |
| return INITIALIZER; |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| ASTNode clone(AST target) { |
| Initializer result = new Initializer(target); |
| result.setSourceRange(this.getStartPosition(), this.getLength()); |
| result.setModifiers(getModifiers()); |
| result.setJavadoc( |
| (Javadoc) ASTNode.copySubtree(target, getJavadoc())); |
| result.setBody((Block) getBody().clone(target)); |
| return result; |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| public boolean subtreeMatch(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()); |
| acceptChild(visitor, getBody()); |
| } |
| visitor.endVisit(this); |
| } |
| |
| /** |
| * Returns the modifiers explicitly specified on this declaration. |
| * <p> |
| * Note that static is the only meaningful modifier for an initializer. |
| * </p> |
| * |
| * @return the bit-wise or of <code>Modifier</code> constants |
| * @see Modifier |
| */ |
| public int getModifiers() { |
| return modifiers; |
| } |
| |
| /** |
| * Sets the modifiers explicitly specified on this declaration. |
| * <p> |
| * Note that static is the only meaningful modifier for an initializer. |
| * </p> |
| * |
| * @return the bit-wise or of <code>Modifier</code> constants |
| * @see Modifier |
| * @exception IllegalArgumentException if the modifiers are illegal |
| */ |
| public void setModifiers(int modifiers) { |
| if ((modifiers & ~LEGAL_MODIFIERS) != 0) { |
| throw new IllegalArgumentException(); |
| } |
| modifying(); |
| this.modifiers = modifiers; |
| } |
| |
| /** |
| * Returns the body of this initializer declaration. |
| * |
| * @return the initializer body |
| */ |
| public Block getBody() { |
| if (body == null) { |
| // lazy initialize - use setter to ensure parent link set too |
| long count = getAST().modificationCount(); |
| setBody(new Block(getAST())); |
| getAST().setModificationCount(count); |
| } |
| return 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(); |
| } |
| replaceChild(this.body, body, true); |
| this.body = body; |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| int memSize() { |
| return super.memSize() + 2 * 4; |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| int treeSize() { |
| return |
| memSize() |
| + (getJavadoc() == null ? 0 : getJavadoc().treeSize()) |
| + (body == null ? 0 : getBody().treeSize()); |
| } |
| } |
| |