| /******************************************************************************* |
| * 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; |
| |
| import java.util.List; |
| |
| /** |
| * Array creation expression AST node type. |
| * |
| * <pre> |
| * ArrayCreation: |
| * <b>new</b> PrimitiveType <b>[</b> Expression <b>]</b> { <b>[</b> Expression <b>]</b> } { <b>[</b> <b>]</b> } |
| * <b>new</b> TypeName <b>[</b> Expression ]</b> { <b>[</b> Expression <b>]</b> } { <b>[</b> <b>]</b> } |
| * <b>new</b> PrimitiveType <b>[</b> <b>]</b> { <b>[</b> <b>]</b> } ArrayInitializer |
| * <b>new</b> TypeName <b>[</b> <b>]</b> { <b>[</b> <b>]</b> } ArrayInitializer |
| * </pre> |
| * <p> |
| * The mapping from Java language syntax to AST nodes is as follows: |
| * <ul> |
| * <li>the type node is the array type of the creation expression, |
| * with one level of array per set of square brackets,</li> |
| * <li>the dimension expressions are collected into the <code>dimensions</code> |
| * list.</li> |
| * </ul> |
| * </p> |
| * |
| * @since 2.0 |
| */ |
| public class ArrayCreation extends Expression { |
| |
| /** |
| * The array type; lazily initialized; defaults to a unspecified, |
| * legal array type. |
| */ |
| private ArrayType arrayType = null; |
| |
| /** |
| * The list of dimension expressions (element type: |
| * <code>Expression</code>). Defaults to an empty list. |
| */ |
| private ASTNode.NodeList dimensions = |
| new ASTNode.NodeList(true, Expression.class); |
| |
| /** |
| * The optional array initializer, or <code>null</code> if none; |
| * defaults to none. |
| */ |
| private ArrayInitializer optionalInitializer = null; |
| |
| /** |
| * Creates a new AST node for an array creation expression owned by the |
| * given AST. By default, the array type is an unspecified 1-dimensional |
| * array, the list of dimensions is empty, and there is no array |
| * initializer. |
| * |
| * @param ast the AST that is to own this node |
| */ |
| ArrayCreation(AST ast) { |
| super(ast); |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| public int getNodeType() { |
| return ARRAY_CREATION; |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| ASTNode clone(AST target) { |
| ArrayCreation result = new ArrayCreation(target); |
| result.setSourceRange(this.getStartPosition(), this.getLength()); |
| result.setType((ArrayType) getType().clone(target)); |
| result.dimensions().addAll(ASTNode.copySubtrees(target, dimensions())); |
| result.setInitializer( |
| (ArrayInitializer) ASTNode.copySubtree(target, getInitializer())); |
| 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) { |
| // visit children in normal left to right reading order |
| acceptChild(visitor, getType()); |
| acceptChildren(visitor, dimensions); |
| acceptChild(visitor, getInitializer()); |
| } |
| visitor.endVisit(this); |
| } |
| |
| /** |
| * Returns the array type in this array creation expression. |
| * |
| * @return the array type |
| */ |
| public ArrayType getType() { |
| if (arrayType == null) { |
| // lazy initialize - use setter to ensure parent link set too |
| long count = getAST().modificationCount(); |
| setType(getAST().newArrayType( |
| getAST().newPrimitiveType(PrimitiveType.INT))); |
| getAST().setModificationCount(count); |
| } |
| return arrayType; |
| } |
| |
| /** |
| * Sets the array type in this array creation expression. |
| * |
| * @param type the new array type |
| * @exception IllegalArgumentException if: |
| * <ul> |
| * <li>the node belongs to a different AST</li> |
| * <li>the node already has a parent</li> |
| * </ul> |
| */ |
| public void setType(ArrayType type) { |
| if (type == null) { |
| throw new IllegalArgumentException(); |
| } |
| // an ArrayCreation cannot occur inside a ArrayType - cycles not possible |
| replaceChild(this.arrayType, type, false); |
| this.arrayType = type; |
| } |
| |
| /** |
| * Returns the live ordered list of dimension expressions in this array |
| * initializer. |
| * |
| * @return the live list of dimension expressions |
| * (element type: <code>Expression</code>) |
| */ |
| public List dimensions() { |
| return dimensions; |
| } |
| |
| /** |
| * Returns the array initializer of this array creation expression, or |
| * <code>null</code> if there is none. |
| * |
| * @return the array initializer node, or <code>null</code> if |
| * there is none |
| */ |
| public ArrayInitializer getInitializer() { |
| return optionalInitializer; |
| } |
| |
| /** |
| * Sets or clears the array initializer of this array creation expression. |
| * |
| * @param initializer the array initializer node, or <code>null</code> |
| * if there is none |
| * @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 setInitializer(ArrayInitializer initializer) { |
| // an ArrayCreation may occur inside an ArrayInitializer |
| // must check cycles |
| replaceChild(this.optionalInitializer, initializer, true); |
| this.optionalInitializer = initializer; |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| int memSize() { |
| return BASE_NODE_SIZE + 3 * 4; |
| } |
| |
| /* (omit javadoc for this method) |
| * Method declared on ASTNode. |
| */ |
| int treeSize() { |
| int size = memSize() |
| + (arrayType == null ? 0 : getType().treeSize()) |
| + (optionalInitializer == null ? 0 : getInitializer().treeSize()) |
| + dimensions.listSize(); |
| return size; |
| } |
| } |
| |