/******************************************************************************
* Copyright (C) 2006-2013 IFS Institute for Software and others
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Original authors:
* Dennis Hunziker
* Ueli Kistler
* Reto Schuettel
* Robin Stocker
* Contributors:
* Fabio Zadrozny <fabiofz@gmail.com> - initial implementation
* Camilo Bernal <cabernal@redhat.com> - ongoing maintenance
******************************************************************************/
/*
* Copyright (C) 2006, 2007 Dennis Hunziker, Ueli Kistler
* Copyright (C) 2007 Reto Schuettel, Robin Stocker
*
* IFS Institute for Software, HSR Rapperswil, Switzerland
*
*/
package org.python.pydev.refactoring.codegenerator.generateproperties.edit;
import org.python.pydev.parser.jython.SimpleNode;
import org.python.pydev.parser.jython.ast.Attribute;
import org.python.pydev.parser.jython.ast.Delete;
import org.python.pydev.parser.jython.ast.FunctionDef;
import org.python.pydev.parser.jython.ast.Name;
import org.python.pydev.parser.jython.ast.NameTok;
import org.python.pydev.parser.jython.ast.argumentsType;
import org.python.pydev.parser.jython.ast.exprType;
import org.python.pydev.parser.jython.ast.stmtType;
import org.python.pydev.parser.jython.ast.factory.NodeHelper;
import org.python.pydev.refactoring.codegenerator.generateproperties.request.GeneratePropertiesRequest;
import org.python.pydev.refactoring.core.edit.AbstractInsertEdit;
/**
* Creates the delete function:
*
* <pre>
* def del_attribute(self):
* del self._attribute
* </pre>
*/
public class DeleteMethodEdit extends AbstractInsertEdit {
private String attributeName;
private String accessorName;
private int offsetStrategy;
public DeleteMethodEdit(GeneratePropertiesRequest req) {
super(req);
this.attributeName = req.getAttributeName();
this.accessorName = GeneratePropertiesRequest.getAccessorName("del", attributeName);
this.offsetStrategy = req.offsetMethodStrategy;
}
@Override
protected SimpleNode getEditNode() {
NameTok functionName = new NameTok(accessorName, NameTok.FunctionName);
argumentsType args = createArguments();
stmtType[] body = createBody();
return new FunctionDef(functionName, args, body, null, null, false);
}
private argumentsType createArguments() {
exprType[] params = new exprType[] { new Name(NodeHelper.KEYWORD_SELF, Name.Param, false) };
return new argumentsType(params, null, null, null, null, null, null, null, null, null);
}
private stmtType[] createBody() {
Name self = new Name(NodeHelper.KEYWORD_SELF, Name.Load, false);
NameTok name = new NameTok(nodeHelper.getPrivateAttr(attributeName), NameTok.Attrib);
Attribute attribute = new Attribute(self, name, Attribute.Del);
Delete delete = new Delete(new exprType[] { attribute });
return new stmtType[] { delete };
}
@Override
public int getOffsetStrategy() {
return offsetStrategy;
}
}