Package org.jruby.internal.runtime.methods

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

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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.exceptions.JumpException;
import org.jruby.internal.runtime.JumpTarget;
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 FullFunctionCallbackMethod extends DynamicMethod implements JumpTarget {
    private Callback callback;

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

    public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule clazz, String name, IRubyObject[] args, Block block) {
        try {
            callConfig.pre(context, self, clazz, name, block, null, this);
           
            assert args != null;
            Ruby runtime = context.getRuntime();
            boolean isTrace = runtime.hasEventHooks();

            if (isTrace) {
                runtime.callEventHooks(context, RubyEvent.C_CALL, context.getFile(), context.getLine(), name, getImplementationClass());
            }

            try {
                return callback.execute(self, args, block);
            } catch (JumpException.ReturnJump rj) {
                if (rj.getTarget() == this) return (IRubyObject)rj.getValue();

                throw rj;
            } finally {
                if (isTrace) {
                    runtime.callEventHooks(context, RubyEvent.C_RETURN, context.getFile(), context.getLine(), name, getImplementationClass());
                }
            }
        } finally {
            callConfig.post(context);
        }
    }
   
    public Callback getCallback() {
        return callback;
    }

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