class/Microsoft.Build.Engine/Microsoft.Build.BuildEngine/ConditionAndExpression.cs

   1 //
   2 // ConditionAndExpression.cs
   3 //
   4 // Author:
   5 //   Marek Sieradzki (marek.sieradzki@gmail.com)
   6 //
   7 // (C) 2006 Marek Sieradzki
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27
  28 #if NET_2_0
  29
  30 using System;
  31 using System.Xml;
  32
  33 namespace Microsoft.Build.BuildEngine {
  34         internal sealed class ConditionAndExpression : ConditionExpression {
  35
  36                 readonly ConditionExpression left;
  37                 readonly ConditionExpression right;
  38
  39                 public ConditionAndExpression (ConditionExpression left, ConditionExpression right)
  40                 {
  41                         this.left = left;
  42                         this.right = right;
  43                 }
  44
  45                 public ConditionExpression Left {
  46                         get { return left; }
  47                 }
  48
  49                 public ConditionExpression Right {
  50                         get { return right; }
  51                 }
  52
  53                 public override  bool BoolEvaluate (Project context)
  54                 {
  55                         if (!left.BoolEvaluate (context))
  56                                 return false;
  57                         if (!right.BoolEvaluate (context))
  58                                 return false;
  59                         return true;
  60                 }
  61
  62
  63                 public override float NumberEvaluate (Project context)
  64                 {
  65                         throw new NotSupportedException ();
  66                 }
  67
  68                 public override string StringEvaluate (Project context)
  69                 {
  70                         throw new NotSupportedException ();
  71                 }
  72
  73                 public override bool CanEvaluateToBool (Project context)
  74                 {
  75                         return left.CanEvaluateToBool (context) && right.CanEvaluateToBool (context);
  76                 }
  77
  78                 public override bool CanEvaluateToNumber (Project context)
  79                 {
  80                         return false;
  81                 }
  82
  83                 public override bool CanEvaluateToString (Project context)
  84                 {
  85                         return false;
  86                 }
  87         }
  88 }
  89
  90 #endif