InitInConstructorEditProvider.java

/***** BEGIN LICENSE BLOCK *****
 * Version: CPL 1.0/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Common Public
 * License Version 1.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.eclipse.org/legal/cpl-v10.html
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * Copyright (C) 2006 Lukas Felber <lfelber@hsr.ch>
 * Copyright (C) 2006 Mirko Stocker <me@misto.ch>
 * Copyright (C) 2006 Thomas Corbat <tcorbat@hsr.ch>
 * 
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the CPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the CPL, the GPL or the LGPL.
 ***** END LICENSE BLOCK *****/

package org.rubypeople.rdt.refactoring.core.convertlocaltofield;

import org.jruby.ast.BlockNode;
import org.jruby.ast.DefnNode;
import org.jruby.ast.NewlineNode;
import org.jruby.ast.Node;
import org.rubypeople.rdt.refactoring.core.NodeFactory;
import org.rubypeople.rdt.refactoring.editprovider.InsertEditProvider;
import org.rubypeople.rdt.refactoring.nodewrapper.ClassNodeWrapper;
import org.rubypeople.rdt.refactoring.nodewrapper.LocalNodeWrapper;
import org.rubypeople.rdt.refactoring.offsetprovider.AfterLastNodeInMethodOffsetProvider;
import org.rubypeople.rdt.refactoring.offsetprovider.ConstructorOffsetProvider;
import org.rubypeople.rdt.refactoring.offsetprovider.OffsetProvider;

public class InitInConstructorEditProvider extends InsertEditProvider {

	private ClassNodeWrapper enclosingClassNode;

	private Node insertNode;

	public InitInConstructorEditProvider(LocalNodeWrapper originalNode, LocalToFieldConfig config) {
		super(true);
		LocalToFieldEditProvider conversion = new LocalToFieldEditProvider(originalNode, config.getNewName(), config.isClassField(), true);
		insertNode = conversion.getEditNode(0, null);
		enclosingClassNode = config.getEnclosingClassNode();
	}

	@Override
	protected int getOffset(String document) {
		OffsetProvider offsetProvider;
		if (enclosingClassNode.hasConstructor()) {
			offsetProvider = new AfterLastNodeInMethodOffsetProvider(enclosingClassNode.getConstructorNode(), document);
		} else {
			offsetProvider = new ConstructorOffsetProvider(enclosingClassNode, document);
		}
		return offsetProvider.getOffset();

	}

	@Override
	protected Node getInsertNode(int offset, String document) {
		BlockNode blockNode = NodeFactory.createBlockNode(true, !isNextLineEmpty(offset, document), insertNode);
		if (!enclosingClassNode.hasConstructor()) {
			DefnNode constructorNode = NodeFactory.createConstructor(blockNode);
			NewlineNode newlineNode = NodeFactory.createNewLineNode(constructorNode);
			blockNode = NodeFactory.createBlockNode(true, !isNextLineEmpty(offset, document), newlineNode);
		}
		return blockNode;
	}
}