+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2004, 2006 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;
-
-/**
- * A node event handler is an internal mechanism for receiving
- * notification of changes to nodes in an AST.
- * <p>
- * The default implementation serves as the default event handler
- * that does nothing. Internal subclasses do all the real work.
- * </p>
- *
- * @see AST#getEventHandler()
- */
-class NodeEventHandler {
-
- /**
- * Creates a node event handler.
- */
- NodeEventHandler() {
- // default implementation: do nothing
- }
-
- /**
- * Reports that the given node is about to lose a child.
- * The first half of an event pair. The default implementation does nothing.
- *
- * @param node the node about to be modified
- * @param child the node about to be removed
- * @param property the child or child list property descriptor
- * @see #postRemoveChildEvent(ASTNode, ASTNode, StructuralPropertyDescriptor)
- * @since 3.0
- */
- void preRemoveChildEvent(ASTNode node, ASTNode child, StructuralPropertyDescriptor property) {
- // do nothing
- // System.out.println("DEL1 " + property);
- }
-
- /**
- * Reports that the given node has just lose a child.
- * The second half of an event pair. The default implementation does nothing.
- *
- * @param node the node that was modified
- * @param child the child that was removed; note that this node is unparented
- * @param property the child or child list property descriptor
- * @see #preRemoveChildEvent(ASTNode, ASTNode, StructuralPropertyDescriptor)
- * @since 3.0
- */
- void postRemoveChildEvent(ASTNode node, ASTNode child, StructuralPropertyDescriptor property) {
- // do nothing
- // System.out.println("DEL2 " + property);
- }
-
- /**
- * Reports that the given node is about to have a child replaced.
- * The first half of an event pair.
- * The default implementation does nothing.
- *
- * @param node the node about to be modified
- * @param child the node about to be replaced
- * @param newChild the replacement child; note that this node is unparented
- * @param property the child or child list property descriptor
- * @see #preReplaceChildEvent(ASTNode, ASTNode, ASTNode, StructuralPropertyDescriptor)
- * @since 3.0
- */
- void preReplaceChildEvent(ASTNode node, ASTNode child, ASTNode newChild, StructuralPropertyDescriptor property) {
- // do nothing
- // System.out.println("REP1 " + property);
- }
-
- /**
- * Reports that the given node has had its child replaced. The second half
- * of an event pair. The default implementation does nothing.
- *
- * @param node the node that was modified
- * @param child the node that was replaced; note that this node is unparented
- * @param newChild the replacement child
- * @param property the child or child list property descriptor
- * @see #postReplaceChildEvent(ASTNode, ASTNode, ASTNode, StructuralPropertyDescriptor)
- * @since 3.0
- */
- void postReplaceChildEvent(ASTNode node, ASTNode child, ASTNode newChild, StructuralPropertyDescriptor property) {
- // do nothing
- // System.out.println("REP2 " + property);
- }
-
- /**
- * Reports that the given node is about to gain a child.
- * The first half of an event pair. The default implementation does nothing.
- *
- * @param node the node that to be modified
- * @param child the node that is to be added as a child; note that this
- * node is unparented; in the case of a child list property, the exact
- * location of insertion is not supplied (but is known on the
- * corresponding <code>postAddChildEvent</code> to
- * follow)
- * @param property the child or child list property descriptor
- * @see #postAddChildEvent(ASTNode, ASTNode, StructuralPropertyDescriptor)
- * @since 3.0
- */
- void preAddChildEvent(ASTNode node, ASTNode child, StructuralPropertyDescriptor property) {
- // do nothing
- // System.out.println("ADD1 " + property);
- }
-
- /**
- * Reports that the given node has just gained a child.
- * The second half of an event pair. The default implementation does nothing.
- *
- * @param node the node that was modified
- * @param child the node that was added as a child
- * @param property the child or child list property descriptor
- * @see #preAddChildEvent(ASTNode, ASTNode, StructuralPropertyDescriptor)
- * @since 3.0
- */
- void postAddChildEvent(ASTNode node, ASTNode child, StructuralPropertyDescriptor property) {
- // do nothing
- // System.out.println("ADD2 " + property);
- }
-
- /**
- * Reports that the given node is about to change the value of a
- * non-child property. The first half of an event pair.
- * The default implementation does nothing.
- *
- * @param node the node to be modified
- * @param property the property descriptor
- * @see #postValueChangeEvent(ASTNode, SimplePropertyDescriptor)
- * @since 3.0
- */
- void preValueChangeEvent(ASTNode node, SimplePropertyDescriptor property) {
- // do nothing
- // System.out.println("MOD1 " + property);
- }
-
- /**
- * Reports that the given node has just changed the value of a
- * non-child property. The second half of an event pair.
- * The default implementation does nothing.
- *
- * @param node the node that was modified
- * @param property the property descriptor
- * @see #preValueChangeEvent(ASTNode, SimplePropertyDescriptor)
- * @since 3.0
- */
- void postValueChangeEvent(ASTNode node, SimplePropertyDescriptor property) {
- // do nothing
- // System.out.println("MOD2 " + property);
- }
-
- /**
- * Reports that the given node is about to be cloned.
- * The first half of an event pair.
- * The default implementation does nothing.
- *
- * @param node the node to be modified
- * @see #postCloneNodeEvent(ASTNode, ASTNode)
- * @since 3.0
- */
- void preCloneNodeEvent(ASTNode node) {
- // do nothing
- // System.out.println("CLONE1");
- }
-
- /**
- * Reports that the given node has just been cloned.
- * The second half of an event pair.
- * The default implementation does nothing.
- *
- * @param node the node that was modified
- * @param clone the clone of <code>node</code>
- * @see #preCloneNodeEvent(ASTNode)
- * @since 3.0
- */
- void postCloneNodeEvent(ASTNode node, ASTNode clone) {
- // do nothing
- // System.out.println("CLONE2");
- }
-
-}
git://git.phpeclipse.com / phpeclipse.git / blobdiff