/***** BEGIN LICENSE BLOCK *****

* Version: EPL 1.0/GPL 2.0/LGPL 2.1

*

* The contents of this file are subject to the Eclipse 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/epl-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) 2001 Chad Fowler <chadfowler@chadfowler.com>

* Copyright (C) 2001 Alan Moore <alan_moore@gmx.net>

* Copyright (C) 2001-2004 Jan Arne Petersen <jpetersen@uni-bonn.de>

* Copyright (C) 2002-2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>

* Copyright (C) 2002-2005 Thomas E Enebo <enebo@acm.org>

* Copyright (C) 2004 Stefan Matthias Aust <sma@3plus4.de>

* Copyright (C) 2005 Charles O Nutter <headius@headius.com>

*

* 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 EPL, 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 EPL, the GPL or the LGPL.

***** END LICENSE BLOCK *****/

package org.jruby;

import org.jruby.anno.JRubyClass;

import org.jruby.anno.JRubyMethod;

import org.jruby.runtime.Binding;

import org.jruby.runtime.Block;

import org.jruby.runtime.ClassIndex;

import org.jruby.runtime.ObjectAllocator;

import org.jruby.runtime.ThreadContext;

import org.jruby.runtime.Visibility;

import org.jruby.runtime.builtin.IRubyObject;

/**

* @author jpetersen

*/

@JRubyClass(name="Binding")

public class RubyBinding extends RubyObject {

private Binding binding;

public RubyBinding(Ruby runtime, RubyClass rubyClass, Binding binding) {

super(runtime, rubyClass);

this.binding = binding;

}

private RubyBinding(Ruby runtime, RubyClass rubyClass) {

super(runtime, rubyClass);

}

private static ObjectAllocator BINDING_ALLOCATOR = new ObjectAllocator() {

public IRubyObject allocate(Ruby runtime, RubyClass klass) {

RubyBinding instance = new RubyBinding(runtime, klass);

return instance;

}

};

public static RubyClass createBindingClass(Ruby runtime) {

RubyClass bindingClass = runtime.defineClass("Binding", runtime.getObject(), BINDING_ALLOCATOR);

runtime.setBinding(bindingClass);

bindingClass.index = ClassIndex.BINDING;

bindingClass.setReifiedClass(RubyBinding.class);

bindingClass.defineAnnotatedMethods(RubyBinding.class);

bindingClass.getSingletonClass().undefineMethod("new");

return bindingClass;

}

public Binding getBinding() {

return binding;

}

// Proc class

public static RubyBinding newBinding(Ruby runtime, Binding binding) {

return new RubyBinding(runtime, runtime.getBinding(), binding);

}

@Deprecated

public static RubyBinding newBinding(Ruby runtime) {

return newBinding(runtime, runtime.getCurrentContext().currentBinding());

}

@Deprecated

public static RubyBinding newBinding(Ruby runtime, IRubyObject self) {

return newBinding(runtime, runtime.getCurrentContext().currentBinding(self));

}

@JRubyMethod(name = "initialize", visibility = Visibility.PRIVATE)

public IRubyObject initialize(ThreadContext context) {

binding = context.currentBinding();

return this;

}

@JRubyMethod(name = "initialize_copy", required = 1, visibility = Visibility.PRIVATE)

@Override

public IRubyObject initialize_copy(IRubyObject other) {

RubyBinding otherBinding = (RubyBinding)other;

binding = otherBinding.binding.clone();

return this;

}

// c: bind_eval

@JRubyMethod(name = "eval", required=1, optional=2)

public IRubyObject eval(ThreadContext context, IRubyObject[] args) {

IRubyObject[] newArgs = new IRubyObject[args.length+1];

newArgs[0] = args[0]; // eval string

newArgs[1] = this; // binding

if(args.length>1) {

newArgs[2] = args[1]; // file

if(args.length>2) {

newArgs[3] = args[2]; // line

}

}

return RubyKernel.eval(context, this, newArgs, Block.NULL_BLOCK);

}

}