/***** 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) 2002-2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
* Copyright (C) 2002-2004 Jan Arne Petersen <jpetersen@uni-bonn.de>
* Copyright (C) 2004 Thomas E Enebo <enebo@acm.org>
* Copyright (C) 2004 Stefan Matthias Aust <sma@3plus4.de>
*
* 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.jruby;
import org.jruby.anno.JRubyMethod;
import org.jruby.anno.JRubyModule;
import org.jruby.runtime.Arity;
import org.jruby.runtime.Block;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.runtime.callback.Callback;
/**
*
* @author jpetersen
*/
@JRubyModule(name="Precision")
public class RubyPrecision {
public static RubyModule createPrecisionModule(Ruby runtime) {
RubyModule precisionModule = runtime.defineModule("Precision");
runtime.setPrecision(precisionModule);
precisionModule.defineAnnotatedMethods(RubyPrecision.class);
return precisionModule;
}
public static IRubyObject induced_from(IRubyObject receiver, IRubyObject source, Block block) {
throw receiver.getRuntime().newTypeError("Undefined conversion from " + source.getMetaClass().getName() + " into " + ((RubyClass)receiver).getName());
}
@JRubyMethod(module = true)
public static IRubyObject append_features(IRubyObject receiver, IRubyObject include, Block block) {
if (include instanceof RubyModule) {
((RubyModule) include).includeModule(receiver);
include.getSingletonClass().defineMethod("induced_from", new Callback() {
public IRubyObject execute(IRubyObject recv, IRubyObject[] args, Block block) {
Arity.checkArgumentCount(recv.getRuntime(), args, 1, 1);
return RubyPrecision.induced_from(recv, args[0], block);
}
public Arity getArity() {
return Arity.ONE_ARGUMENT;
}
});
}
return receiver;
}
@JRubyMethod
public static IRubyObject prec(ThreadContext context, IRubyObject receiver, IRubyObject type, Block block) {
return type.callMethod(context, "induced_from", receiver);
}
@JRubyMethod
public static IRubyObject prec_i(ThreadContext context, IRubyObject receiver, Block block) {
return receiver.getRuntime().getInteger().callMethod(context, "induced_from", receiver);
}
@JRubyMethod
public static IRubyObject prec_f(ThreadContext context, IRubyObject receiver, Block block) {
return receiver.getRuntime().getFloat().callMethod(context, "induced_from", receiver);
}
}