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3  * This file is part of the BeanShell Java Scripting distribution. *
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12  * The Original Code is BeanShell. The Initial Developer of the Original *
13  * Code is Pat Niemeyer. Portions created by Pat Niemeyer are Copyright *
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28  * Patrick Niemeyer (pat@pat.net) *
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32  *****************************************************************************/
33
34 package bsh;
35
36 /**
37     A formal parameter declaration.
38     For loose variable declaration type is null.
39 */
40 class BSHFormalParameter extends SimpleNode
41 {
42     public static final Class JavaDoc UNTYPED = null;
43     public String JavaDoc name;
44     // unsafe caching of type here
45 public Class JavaDoc type;
46
47     BSHFormalParameter(int id) { super(id); }
48
49     public String JavaDoc getTypeDescriptor(
50         CallStack callstack, Interpreter interpreter, String JavaDoc defaultPackage )
51     {
52         if ( jjtGetNumChildren() > 0 )
53             return ((BSHType)jjtGetChild(0)).getTypeDescriptor(
54                 callstack, interpreter, defaultPackage );
55         else
56             // this will probably not get used
57 return "Ljava/lang/Object;"; // Object type
58 }
59
60     /**
61         Evaluate the type.
62     */
63     public Object JavaDoc eval( CallStack callstack, Interpreter interpreter)
64         throws EvalError
65     {
66         if ( jjtGetNumChildren() > 0 )
67             type = ((BSHType)jjtGetChild(0)).getType( callstack, interpreter );
68         else
69             type = UNTYPED;
70
71         return type;
72     }
73 }
74
75
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