//
// TypeOf.cs:
//
// Author:
// Cesar Lopez Nataren (cesar@ciencias.unam.mx)
//
// (C) 2003, Cesar Lopez Nataren
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
namespace Microsoft.JScript {
public sealed class Typeof : UnaryOp {
internal Typeof ()
: base (null, null)
{
}
public static string JScriptTypeof (object value)
{
IConvertible ic = value as IConvertible;
TypeCode tc = Convert.GetTypeCode (value, ic);
if (Convert.IsNumberTypeCode (tc))
return "number";
switch (tc) {
case TypeCode.String:
return "string";
case TypeCode.Object:
case TypeCode.DBNull:
if (value is ScriptFunction || value is RegExpObject)
return "function";
return "object";
case TypeCode.Empty:
return "undefined";
case TypeCode.Boolean:
return "boolean";
default:
Console.WriteLine ("TypeOf, tc = {0}", tc);
break;
}
throw new NotImplementedException ();
}
internal override bool Resolve (Environment env)
{
throw new NotImplementedException ();
}
internal override bool Resolve (Environment env, bool no_effect)
{
this.no_effect = no_effect;
return Resolve (env);
}
internal override void Emit (EmitContext ec)
{
throw new NotImplementedException ();
}
}
}