yaml/org.eclipse.statet.yaml.core/src/org/eclipse/statet/yaml/core/ast/Instruction.java

/*=============================================================================#
 # Copyright (c) 2009, 2018 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.yaml.core.ast;

import java.lang.reflect.InvocationTargetException;

import org.eclipse.statet.ltk.ast.core.AstNode;
import org.eclipse.statet.ltk.ast.core.AstVisitor;
import org.eclipse.statet.yaml.core.ast.YamlAst.NodeType;


public class Instruction extends YamlAstNode {
	
	
	static final class DocStart extends Instruction {
		
		DocStart(final SourceComponent parent, final int startOffset, final int endOffset) {
			super(parent, startOffset, endOffset);
		}
		
		
		@Override
		public String getText() {
			return "---"; //$NON-NLS-1$
		}
		
	}
	
	static final class DocEnd extends Instruction {
		
		DocEnd(final SourceComponent parent, final int startOffset, final int endOffset) {
			super(parent, startOffset, endOffset);
		}
		
		
		@Override
		public String getText() {
			return "..."; //$NON-NLS-1$
		}
		
	}
	
	
	Instruction(final YamlAstNode parent, final int startOffset, final int endOffset) {
		super(parent, startOffset, endOffset);
	}
	
	
	@Override
	public NodeType getNodeType() {
		return NodeType.INSTRUCTION;
	}
	
	
	@Override
	public boolean hasChildren() {
		return false;
	}
	
	@Override
	public int getChildCount() {
		return 0;
	}
	
	@Override
	public YamlAstNode getChild(final int index) {
		throw new IndexOutOfBoundsException();
	}
	
	@Override
	public int getChildIndex(final AstNode element) {
		return -1;
	}
	
	@Override
	public void acceptInChildren(final AstVisitor visitor) throws InvocationTargetException {
	}
	
	@Override
	public void acceptInYaml(final YamlAstVisitor visitor) throws InvocationTargetException {
		visitor.visit(this);
	}
	
	@Override
	public void acceptInYamlChildren(final YamlAstVisitor visitor) throws InvocationTargetException {
	}
	
}