| /*=============================================================================# |
| # Copyright (c) 2007, 2019 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; |
| |
| |
| /** |
| * <code>§expr§ + §expr§ - §expr§</code> |
| * <code>§expr§ * §expr§ / §expr§</code> |
| */ |
| @NonNullByDefault |
| public abstract class Arithmetic extends StdBinary { |
| |
| |
| static final class Plus extends Arithmetic { |
| |
| |
| public Plus() { |
| } |
| |
| |
| @Override |
| public final NodeType getNodeType() { |
| return NodeType.ADD; |
| } |
| |
| @Override |
| public RTerminal getOperator(final int index) { |
| return RTerminal.PLUS; |
| } |
| |
| } |
| |
| static final class Minus extends Arithmetic { |
| |
| |
| public Minus() { |
| } |
| |
| |
| @Override |
| public final NodeType getNodeType() { |
| return NodeType.ADD; |
| } |
| |
| @Override |
| public RTerminal getOperator(final int index) { |
| return RTerminal.MINUS; |
| } |
| |
| } |
| |
| static final class Mult extends Arithmetic { |
| |
| |
| public Mult() { |
| } |
| |
| |
| @Override |
| public final NodeType getNodeType() { |
| return NodeType.MULT; |
| } |
| |
| @Override |
| public RTerminal getOperator(final int index) { |
| return RTerminal.MULT; |
| } |
| |
| } |
| |
| static final class Div extends Arithmetic { |
| |
| |
| public Div() { |
| } |
| |
| |
| @Override |
| public final NodeType getNodeType() { |
| return NodeType.MULT; |
| } |
| |
| @Override |
| public RTerminal getOperator(final int index) { |
| return RTerminal.DIV; |
| } |
| |
| } |
| |
| |
| protected Arithmetic() { |
| } |
| |
| |
| @Override |
| public final void acceptInR(final RAstVisitor visitor) throws InvocationTargetException { |
| visitor.visit(this); |
| } |
| |
| |
| @Override |
| public final boolean equalsSingle(final RAstNode element) { |
| return (getNodeType() == element.getNodeType()); |
| } |
| |
| } |