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/*
 * #%L
 * The AIBench Shell Plugin
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 * Copyright (C) 2006 - 2017 Daniel Glez-Peña and Florentino Fdez-Riverola
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/*****************************************************************************
 *                                                                           *
 *  This file is part of the BeanShell Java Scripting distribution.          *
 *  Documentation and updates may be found at http://www.beanshell.org/      *
 *                                                                           *
 *  Sun Public License Notice:                                               *
 *                                                                           *
 *  The contents of this file are subject to the Sun Public License Version  *
 *  1.0 (the "License"); you may not use this file except in compliance with *
 *  the License. A copy of the License is available at http://www.sun.com    * 
 *                                                                           *
 *  The Original Code is BeanShell. The Initial Developer of the Original    *
 *  Code is Pat Niemeyer. Portions created by Pat Niemeyer are Copyright     *
 *  (C) 2000.  All Rights Reserved.                                          *
 *                                                                           *
 *  GNU Public License Notice:                                               *
 *                                                                           *
 *  Alternatively, the contents of this file may be used under the terms of  *
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 *  this file under either the SPL or the LGPL.                              *
 *                                                                           *
 *  Patrick Niemeyer ([email protected])                                           *
 *  Author of Learning Java, O'Reilly & Associates                           *
 *  http://www.pat.net/~pat/                                                 *
 *                                                                           *
 *****************************************************************************/

package bsh;

/**
 * A formal parameter declaration. For loose variable declaration type is null.
 */
class BSHFormalParameter extends SimpleNode {
        public static final Class UNTYPED = null;

        public String name;

        // unsafe caching of type here
        public Class type;

        BSHFormalParameter(int id) {
                super(id);
        }

        public String getTypeDescriptor(CallStack callstack, Interpreter interpreter, String defaultPackage) {
                if (jjtGetNumChildren() > 0)
                        return ((BSHType) jjtGetChild(0)).getTypeDescriptor(callstack, interpreter, defaultPackage);
                else
                        // this will probably not get used
                        return "Ljava/lang/Object;"; // Object type
        }

        /**
         * Evaluate the type.
         */
        public Object eval(CallStack callstack, Interpreter interpreter) throws EvalError {
                if (jjtGetNumChildren() > 0)
                        type = ((BSHType) jjtGetChild(0)).getType(callstack, interpreter);
                else
                        type = UNTYPED;

                return type;
        }
}