Package org.jruby.internal.runtime.methods

Source Code of org.jruby.internal.runtime.methods.SimpleCallbackMethod

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* 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
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* rights and limitations under the License.
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* Copyright (C) 2002 Benoit Cerrina <b.cerrina@wanadoo.fr>
* Copyright (C) 2002-2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
* Copyright (C) 2002-2004 Jan Arne Petersen <jpetersen@uni-bonn.de>
* Copyright (C) 2004-2005 Thomas E Enebo <enebo@acm.org>
* Copyright (C) 2004 Stefan Matthias Aust <sma@3plus4.de>
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package org.jruby.internal.runtime.methods;

import org.jruby.Ruby;
import org.jruby.RubyModule;
import org.jruby.runtime.Arity;
import org.jruby.runtime.Block;
import org.jruby.runtime.RubyEvent;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.Visibility;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.runtime.callback.Callback;

/**
*/
public class SimpleCallbackMethod extends DynamicMethod {
    private Callback callback;

    public SimpleCallbackMethod(RubyModule implementationClass, Callback callback, Visibility visibility) {
        super(implementationClass, visibility, CallConfiguration.FrameNoneScopeNone);
        this.callback = callback;
    }

    public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String name, IRubyObject[] args, Block block) {
      assert args != null;
        Ruby runtime = context.runtime;
       
        if (runtime.hasEventHooks()) {
            runtime.callEventHooks(context, RubyEvent.C_CALL, context.getFile(), context.getLine(), name, getImplementationClass());
            try {
                return callback.execute(self, args, block);
            } finally {
                runtime.callEventHooks(context, RubyEvent.C_RETURN, context.getFile(), context.getLine(), name, getImplementationClass());
            }
        }
       
        return callback.execute(self, args, block);
    }

    public Callback getCallback() {
        return callback;
    }

    public Arity getArity() {
        return getCallback().getArity();
    }
   
    public DynamicMethod dup() {
        return new SimpleCallbackMethod(getImplementationClass(), callback, getVisibility());
    }
}
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