mcs/class/Microsoft.Build.Engine/Microsoft.Build.BuildEngine/BuildProperty.cs

   1 //
   2 // BuildProperty.cs: Represents a property
   3 //
   4 // Author:
   5 //   Marek Sieradzki (marek.sieradzki@gmail.com)
   6 //
   7 // (C) 2005 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.Text;
  32 using System.Xml;
  33
  34 namespace Microsoft.Build.BuildEngine {
  35         public class BuildProperty {
  36
  37                 XmlElement      propertyElement;
  38                 string          finalValue;
  39                 bool            isImported;
  40                 string          value;
  41                 string          name;
  42                 Project         parentProject;
  43                 PropertyType    propertyType;
  44
  45                 private BuildProperty ()
  46                 {
  47                 }
  48
  49                 public BuildProperty (string propertyName, string propertyValue)
  50                         : this (propertyName, propertyValue, PropertyType.Normal)
  51                 {
  52                 }
  53
  54                 internal BuildProperty (string propertyName,
  55                                 string propertyValue, PropertyType propertyType)
  56                 {
  57                         this.name = propertyName;
  58                         this.value = propertyValue;
  59                         this.finalValue = propertyValue;
  60                         this.propertyType = propertyType;
  61                         this.isImported = false;
  62                 }
  63
  64                 internal BuildProperty (Project parentProject, XmlElement propertyElement)
  65                 {
  66                         if (propertyElement == null)
  67                                 throw new ArgumentNullException ("propertyElement");
  68
  69                         this.propertyElement = propertyElement;
  70                         this.propertyType = PropertyType.Normal;
  71                         this.parentProject = parentProject;
  72                         this.name = propertyElement.Name;
  73                         this.value = propertyElement.InnerText;
  74                         this.isImported = false;
  75                 }
  76
  77                 [MonoTODO]
  78                 public BuildProperty Clone (bool deepClone)
  79                 {
  80                         return (BuildProperty) this.MemberwiseClone ();
  81                 }
  82
  83                 public static explicit operator string (BuildProperty propertyToCast)
  84                 {
  85                         if (propertyToCast == null)
  86                                 throw new ArgumentNullException ("propertyToCast");
  87                         return propertyToCast.ToString ();
  88                 }
  89
  90                 public override string ToString ()
  91                 {
  92                         if (finalValue != null)
  93                                 return finalValue;
  94                         else
  95                                 return Value;
  96                 }
  97
  98                 internal void Evaluate ()
  99                 {
 100                         if (FromXml) {
 101                                 OldExpression exp = new OldExpression (parentProject);
 102                                 exp.ParseSource (Value);
 103                                 finalValue = (string) exp.ConvertTo (typeof (string));
 104                                 parentProject.EvaluatedProperties.AddProperty (this);
 105                         }
 106                 }
 107
 108                 private bool FromXml {
 109                         get {
 110                                 return propertyElement != null;
 111                         }
 112                 }
 113
 114                 public string Condition {
 115                         get { return propertyElement.GetAttribute ("Condition"); }
 116                         set { propertyElement.SetAttribute ("Condition", value); }
 117                 }
 118
 119                 public string FinalValue {
 120                         get {
 121                                 if (finalValue == null)
 122                                         return this.@value;
 123                                 else
 124                                         return finalValue;
 125                         }
 126                 }
 127
 128                 public bool IsImported {
 129                         get { return isImported; }
 130                 }
 131
 132                 public string Name {
 133                         get { return name; }
 134                 }
 135
 136                 public string Value {
 137                         get {
 138                                 return value;
 139                         }
 140                         set {
 141                                 this.@value = value;
 142                                 if (FromXml) {
 143                                         propertyElement.InnerText = value;
 144                                 } else {
 145                                         finalValue = value;
 146                                 }
 147                         }
 148                 }
 149
 150                 internal PropertyType PropertyType {
 151                         get {
 152                                 return propertyType;
 153                         }
 154                 }
 155         }
 156
 157         internal enum PropertyType {
 158                 Reserved,
 159                 Global,
 160                 Normal,
 161                 Environment
 162         }
 163 }
 164
 165 #endif