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/***** BEGIN LICENSE BLOCK *****
 * Version: EPL 2.0/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Eclipse Public
 * License Version 2.0 (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-v20.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 Jan Arne Petersen 
 * Copyright (C) 2004-2005 Thomas E Enebo 
 * 
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 * 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"),
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package org.jruby.internal.runtime.methods;

import org.jruby.RubyModule;
import org.jruby.runtime.Arity;
import org.jruby.runtime.Block;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.Visibility;
import org.jruby.runtime.builtin.IRubyObject;

/**
 * This is similar to {@link DelegatingDynamicMethod} except that it does not delegate most properties of DynamicMethod.
 * Visibility, etc, set on an instance of {@link PartialDelegatingMethod} will not be delegated to the contained method.
 *
 * This type of method is used primarily for altering the visibility of a parent class's method in a child class.
 *
 * Note that {@link AliasMethod} is not a suitable substitute since it always passes the method's original name to the
 * delegate, and {@link DelegatingDynamicMethod} is not a suitable substitute since it delegates all properties to the
 * delegate.
 *
 * @author jpetersen
 */
public class PartialDelegatingMethod extends DynamicMethod {
    private DynamicMethod method;

    /**
     * Constructor for PartialDelegatingMethod.
     * @param visibility
     */
    public PartialDelegatingMethod(RubyModule implementationClass, DynamicMethod method, Visibility visibility) {
        super(implementationClass, visibility, method.getName()   );
        this.method = method;
    }
    
    public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String name) {
        return method.call(context, self, klazz, name);
    }
    
    public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String name, IRubyObject arg) {
        return method.call(context, self, klazz, name, arg);
    }
    
    public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String name, IRubyObject arg1, IRubyObject arg2) {
        return method.call(context, self, klazz, name, arg1, arg2);
    }
    
    public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String name, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3) {
        return method.call(context, self, klazz, name, arg1, arg2, arg3);
    }
    
    public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String name, IRubyObject[] args) {
        return method.call(context, self, klazz, name, args);
    }
    
    public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String name, Block block) {
        return method.call(context, self, klazz, name, block);
    }
    
    public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String name, IRubyObject arg1, Block block) {
        return method.call(context, self, klazz, name, arg1, block);
    }
    
    public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String name, IRubyObject arg1, IRubyObject arg2, Block block) {
        return method.call(context, self, klazz, name, arg1, arg2, block);
    }
    
    public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String name, IRubyObject arg1, IRubyObject arg2, IRubyObject arg3, Block block) {
        return method.call(context, self, klazz, name, arg1, arg2, arg3, block);
    }
    
    public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String name, IRubyObject[] args, Block block) {
        return method.call(context, self, klazz, name, args, block);
    }
    
    public DynamicMethod dup() {
        return new PartialDelegatingMethod(getImplementationClass(), method, getVisibility());
    }

    public long getSerialNumber() {
        return method.getSerialNumber();
    }
    
    public DynamicMethod getRealMethod() {
        return method.getRealMethod();
    }

    public DynamicMethod getDelegate() {
        return method;
    }

    @Override
    public Arity getArity() {
        return method.getArity();
    }

    @Override
    public RubyModule getDefinedClass() {
        RubyModule definedClass = this.definedClass;
        if (definedClass != null) return definedClass;
        return method.getDefinedClass();
    }

}