| /*=============================================================================# |
| # Copyright (c) 2015, 2020 Stephan Wahlbrink and others. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 |
| # which is available at https://www.apache.org/licenses/LICENSE-2.0. |
| # |
| # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 |
| # |
| # Contributors: |
| # Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation |
| #=============================================================================*/ |
| |
| package org.eclipse.statet.ltk.ast.core.impl; |
| |
| import java.lang.reflect.InvocationTargetException; |
| |
| import org.eclipse.statet.jcommons.collections.ImCollections; |
| import org.eclipse.statet.jcommons.collections.ImList; |
| import org.eclipse.statet.jcommons.lang.NonNullByDefault; |
| import org.eclipse.statet.jcommons.lang.Nullable; |
| |
| import org.eclipse.statet.ltk.ast.core.AstNode; |
| import org.eclipse.statet.ltk.ast.core.AstVisitor; |
| |
| |
| @NonNullByDefault |
| public abstract class AbstractAstNode implements AstNode { |
| |
| |
| private static final ImList<Object> NO_ATTACHMENT= ImCollections.emptyList(); |
| |
| |
| private volatile ImList<Object> attachments= NO_ATTACHMENT; |
| |
| |
| protected AbstractAstNode() { |
| } |
| |
| |
| @Override |
| public final void accept(final AstVisitor visitor) throws InvocationTargetException { |
| visitor.visit(this); |
| } |
| |
| |
| public @Nullable String getText() { |
| return null; |
| } |
| |
| |
| @Override |
| public synchronized void addAttachment(final Object data) { |
| this.attachments= ImCollections.addElement(this.attachments, data); |
| } |
| |
| @Override |
| public synchronized void removeAttachment(final Object data) { |
| this.attachments= ImCollections.removeElement(this.attachments, data); |
| } |
| |
| @Override |
| public ImList<Object> getAttachments() { |
| return this.attachments; |
| } |
| |
| |
| } |