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/***** 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) 2004 Charles O Nutter <headius@headius.com>
* 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.JRubyClass;
import org.jruby.internal.runtime.methods.DynamicMethod;
import org.jruby.runtime.Block;
import org.jruby.runtime.ClassIndex;
import org.jruby.runtime.ObjectAllocator;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import static org.jruby.CompatVersion.*;
/**
*
* Note: This was renamed from UnboundMethod.java
*
* @author jpetersen
*/
@JRubyClass(name="UnboundMethod", parent="Method")
public class RubyUnboundMethod extends RubyMethod {
protected RubyUnboundMethod(Ruby runtime) {
super(runtime, runtime.getUnboundMethod());
}
public static RubyUnboundMethod newUnboundMethod(
RubyModule implementationModule,
String methodName,
RubyModule originModule,
String originName,
DynamicMethod method) {
RubyUnboundMethod newMethod = new RubyUnboundMethod(implementationModule.getRuntime());
newMethod.implementationModule = implementationModule;
newMethod.methodName = methodName;
newMethod.originModule = originModule;
newMethod.originName = originName;
newMethod.method = method;
return newMethod;
}
public static RubyClass defineUnboundMethodClass(Ruby runtime) {
// TODO: NOT_ALLOCATABLE_ALLOCATOR is probably ok here. Confirm. JRUBY-415
RubyClass newClass =
runtime.defineClass("UnboundMethod", runtime.getMethod(), ObjectAllocator.NOT_ALLOCATABLE_ALLOCATOR);
runtime.setUnboundMethod(newClass);
newClass.index = ClassIndex.UNBOUNDMETHOD;
newClass.setReifiedClass(RubyUnboundMethod.class);
newClass.defineAnnotatedMethods(RubyUnboundMethod.class);
return newClass;
}
/**
* @see org.jruby.RubyMethod#call(IRubyObject[])
*/
@JRubyMethod(name = {"call", "[]"}, rest = true)
@Override
public IRubyObject call(ThreadContext context, IRubyObject[] args, Block block) {
throw context.getRuntime().newTypeError("you cannot call unbound method; bind first");
}
/**
* @see org.jruby.RubyMethod#unbind()
*/
@JRubyMethod
@Override
public RubyUnboundMethod unbind() {
return this;
}
@JRubyMethod
public RubyMethod bind(ThreadContext context, IRubyObject aReceiver) {
RubyClass receiverClass = aReceiver.getMetaClass();
if (!originModule.isInstance(aReceiver)) {
if (originModule instanceof MetaClass) {
throw context.getRuntime().newTypeError("singleton method called for a different object");
} else if (receiverClass instanceof MetaClass && receiverClass.getMethods().containsKey(originName)) {
throw context.getRuntime().newTypeError("method `" + originName + "' overridden");
} else if (
!(originModule.isModule() ? originModule.isInstance(aReceiver) : aReceiver.getType() == originModule)) {
// FIX replace type() == ... with isInstanceOf(...)
throw context.getRuntime().newTypeError("bind argument must be an instance of " + originModule.getName());
}
}
return RubyMethod.newMethod(implementationModule, methodName, receiverClass, originName, method, aReceiver);
}
@JRubyMethod(name = "clone")
@Override
public RubyMethod rbClone() {
return newUnboundMethod(implementationModule, methodName, originModule, originName, method);
}
@JRubyMethod
@Override
public IRubyObject to_proc(ThreadContext context, Block unusedBlock) {
return super.to_proc(context, unusedBlock);
}
@JRubyMethod(compat = RUBY1_8)
public IRubyObject name(ThreadContext context) {
return context.getRuntime().newString(methodName);
}
@JRubyMethod(name = "name", compat = RUBY1_9)
public IRubyObject name19(ThreadContext context) {
return context.getRuntime().newSymbol(methodName);
}
@JRubyMethod(name = "owner")
public IRubyObject owner(ThreadContext context) {
return implementationModule;
}
}