+++ /dev/null
-/*******************************************************************************
- * 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 net.sourceforge.phpdt.core.dom;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * Try statement AST node type.
- *
- * <pre>
- * TryStatement:
- * <b>try</b> Block
- * { CatchClause }
- * [ <b>finally</b> Block ]
- * </pre>
- *
- * @since 2.0
- * @noinstantiate This class is not intended to be instantiated by clients.
- */
-public class TryStatement extends Statement {
-
- /**
- * The "body" structural property of this node type.
- * @since 3.0
- */
- public static final ChildPropertyDescriptor BODY_PROPERTY =
- new ChildPropertyDescriptor(TryStatement.class, "body", Block.class, MANDATORY, CYCLE_RISK); //$NON-NLS-1$
-
- /**
- * The "catchClauses" structural property of this node type.
- * @since 3.0
- */
- public static final ChildListPropertyDescriptor CATCH_CLAUSES_PROPERTY =
- new ChildListPropertyDescriptor(TryStatement.class, "catchClauses", CatchClause.class, CYCLE_RISK); //$NON-NLS-1$
-
- /**
- * The "finally" structural property of this node type.
- * @since 3.0
- */
- public static final ChildPropertyDescriptor FINALLY_PROPERTY =
- new ChildPropertyDescriptor(TryStatement.class, "finally", Block.class, OPTIONAL, CYCLE_RISK); //$NON-NLS-1$
-
- /**
- * A list of property descriptors (element type:
- * {@link StructuralPropertyDescriptor}),
- * or null if uninitialized.
- */
- private static final List PROPERTY_DESCRIPTORS;
-
- static {
- List propertyList = new ArrayList(4);
- createPropertyList(TryStatement.class, propertyList);
- addProperty(BODY_PROPERTY, propertyList);
- addProperty(CATCH_CLAUSES_PROPERTY, propertyList);
- addProperty(FINALLY_PROPERTY, propertyList);
- PROPERTY_DESCRIPTORS = reapPropertyList(propertyList);
- }
-
- /**
- * 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) {
- return PROPERTY_DESCRIPTORS;
- }
-
- /**
- * The body; lazily initialized; defaults to an empty block.
- */
- private Block body = null;
-
- /**
- * The catch clauses (element type: <code>CatchClause</code>).
- * Defaults to an empty list.
- */
- private ASTNode.NodeList catchClauses =
- new ASTNode.NodeList(CATCH_CLAUSES_PROPERTY);
-
- /**
- * The finally block, or <code>null</code> if none.
- * Defaults to none.
- */
- private Block optionalFinallyBody = null;
-
-
- /**
- * Creates a new AST node for a try statement owned by the given
- * AST. By default, the try statement has an empty block, no catch
- * clauses, and no finally block.
- * <p>
- * N.B. This constructor is package-private.
- * </p>
- *
- * @param ast the AST that is to own this node
- */
- TryStatement(AST ast) {
- super(ast);
- }
-
- /* (omit javadoc for this method)
- * Method declared on ASTNode.
- */
- final List internalStructuralPropertiesForType(int apiLevel) {
- return propertyDescriptors(apiLevel);
- }
-
- /* (omit javadoc for this method)
- * Method declared on ASTNode.
- */
- final ASTNode internalGetSetChildProperty(ChildPropertyDescriptor property, boolean get, ASTNode child) {
- if (property == BODY_PROPERTY) {
- if (get) {
- return getBody();
- } else {
- setBody((Block) child);
- return null;
- }
- }
- if (property == FINALLY_PROPERTY) {
- if (get) {
- return getFinally();
- } else {
- setFinally((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 == CATCH_CLAUSES_PROPERTY) {
- return catchClauses();
- }
- // allow default implementation to flag the error
- return super.internalGetChildListProperty(property);
- }
-
- /* (omit javadoc for this method)
- * Method declared on ASTNode.
- */
- final int getNodeType0() {
- return TRY_STATEMENT;
- }
-
- /* (omit javadoc for this method)
- * Method declared on ASTNode.
- */
- ASTNode clone0(AST target) {
- TryStatement result = new TryStatement(target);
- result.setSourceRange(this.getStartPosition(), this.getLength());
- result.copyLeadingComment(this);
- result.setBody((Block) getBody().clone(target));
- result.catchClauses().addAll(
- ASTNode.copySubtrees(target, catchClauses()));
- result.setFinally(
- (Block) ASTNode.copySubtree(target, getFinally()));
- 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) {
- // visit children in normal left to right reading order
- acceptChild(visitor, getBody());
- acceptChildren(visitor, this.catchClauses);
- acceptChild(visitor, getFinally());
- }
- visitor.endVisit(this);
- }
-
- /**
- * Returns the body of this try statement.
- *
- * @return the try 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 try statement.
- *
- * @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);
- }
-
- /**
- * Returns the live ordered list of catch clauses for this try statement.
- *
- * @return the live list of catch clauses
- * (element type: <code>CatchClause</code>)
- */
- public List catchClauses() {
- return this.catchClauses;
- }
-
- /**
- * Returns the finally block of this try statement, or <code>null</code> if
- * this try statement has <b>no</b> finally block.
- *
- * @return the finally block, or <code>null</code> if this try statement
- * has none
- */
- public Block getFinally() {
- return this.optionalFinallyBody;
- }
-
- /**
- * Sets or clears the finally block of this try statement.
- *
- * @param block the finally block 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 setFinally(Block block) {
- ASTNode oldChild = this.optionalFinallyBody;
- preReplaceChild(oldChild, block, FINALLY_PROPERTY);
- this.optionalFinallyBody = block;
- postReplaceChild(oldChild, block, FINALLY_PROPERTY);
- }
-
- /* (omit javadoc for this method)
- * Method declared on ASTNode.
- */
- int memSize() {
- return super.memSize() + 3 * 4;
- }
-
- /* (omit javadoc for this method)
- * Method declared on ASTNode.
- */
- int treeSize() {
- return
- memSize()
- + (this.body == null ? 0 : getBody().treeSize())
- + this.catchClauses.listSize()
- + (this.optionalFinallyBody == null ? 0 : getFinally().treeSize());
- }
-}
git://git.phpeclipse.com / phpeclipse.git / blobdiff