| /*=============================================================================# |
| # Copyright (c) 2007, 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.r.core.rsource.ast; |
| |
| import java.lang.reflect.InvocationTargetException; |
| |
| import org.eclipse.statet.jcommons.lang.NonNullByDefault; |
| |
| import org.eclipse.statet.r.core.rlang.RTerminal; |
| |
| |
| /** |
| * |
| */ |
| @NonNullByDefault |
| public abstract class StringConst extends SingleValue { |
| |
| |
| static final class S extends StringConst { |
| |
| |
| S() { |
| } |
| |
| |
| @Override |
| public final RTerminal getOperator(final int index) { |
| return RTerminal.STRING_S; |
| } |
| |
| } |
| |
| static final class D extends StringConst { |
| |
| |
| D() { |
| } |
| |
| |
| @Override |
| public final RTerminal getOperator(final int index) { |
| return RTerminal.STRING_D; |
| } |
| |
| } |
| |
| |
| protected StringConst() { |
| } |
| |
| |
| @Override |
| public final NodeType getNodeType() { |
| return NodeType.STRING_CONST; |
| } |
| |
| |
| @Override |
| public final void acceptInR(final RAstVisitor visitor) throws InvocationTargetException { |
| visitor.visit(this); |
| } |
| |
| |
| @Override |
| public final boolean equalsSingle(final RAstNode element) { |
| return (NodeType.STRING_CONST == element.getNodeType()); |
| } |
| |
| } |