5 // Cesar Lopez Nataren (cesar@ciencias.unam.mx)
7 // (C) 2003, Cesar Lopez Nataren
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 using System.Diagnostics;
33 using System.Globalization;
35 namespace Microsoft.JScript {
37 public sealed class Plus : BinaryOp {
40 : base (null, null, null, JSToken.Plus, null)
44 [DebuggerStepThroughAttribute]
45 [DebuggerHiddenAttribute]
46 public object EvaluatePlus (object v1, object v2)
48 object val1 = Convert.ToPrimitive (v1, null);
49 object val2 = Convert.ToPrimitive (v2, null);
50 if (Convert.IsString (val1) || Convert.IsString (val2))
51 return Convert.ToString (val1) + Convert.ToString (val2);
53 return Convert.ToNumber (val1) + Convert.ToNumber (val2);
56 public static object DoOp (object v1, object v2)
58 throw new NotImplementedException ();
61 internal override bool Resolve (Environment env)
63 throw new NotImplementedException ();
66 internal override bool Resolve (Environment env, bool no_effect)
68 throw new NotImplementedException ();
71 internal override void Emit (EmitContext ec)
73 throw new NotImplementedException ();