2009-03-27 Jonathan Chambers <joncham@gmail.com>

[mono.git] / mcs / class / Microsoft.Build.Engine / Microsoft.Build.BuildEngine / BuildChoose.cs

diff --git a/mcs/class/Microsoft.Build.Engine/Microsoft.Build.BuildEngine/BuildChoose.cs b/mcs/class/Microsoft.Build.Engine/Microsoft.Build.BuildEngine/BuildChoose.cs
index 240718478eac0a6b684b64a0a29847133ecc7c99..7abb245ea0a737ecc197cea3c9c08728c3576f00 100644 (file)
--- a/mcs/class/Microsoft.Build.Engine/Microsoft.Build.BuildEngine/BuildChoose.cs
+++ b/mcs/class/Microsoft.Build.Engine/Microsoft.Build.BuildEngine/BuildChoose.cs
@@ -35,15 +35,36 @@ namespace Microsoft.Build.BuildEngine {
        internal class BuildChoose {
                
                BuildWhen       otherwise;
-               //Project               project;
-               //XmlElement    xmlElement;
+               Project         project;
+               XmlElement      xmlElement;
                List <BuildWhen>        whens;
                
                public BuildChoose (XmlElement xmlElement, Project project)
                {
-                       //this.xmlElement = xmlElement;
-                       //this.project = project;
+                       this.xmlElement = xmlElement;
+                       this.project = project;
                        this.whens = new List <BuildWhen> ();
+
+                       foreach (XmlNode xn in xmlElement.ChildNodes) {
+                               if (!(xn is XmlElement))
+                                       continue;
+
+                               XmlElement xe = (XmlElement)xn;
+
+                               if (xe.Name == "When") {
+                                       if (otherwise != null)
+                                               throw new InvalidProjectFileException ("The 'Otherwise' element must be last in a 'Choose' element.");
+                                       if (xe.Attributes.GetNamedItem ("Condition") == null)
+                                               throw new InvalidProjectFileException ("The 'When' element requires a 'Condition' attribute.");
+                                       BuildWhen bw = new BuildWhen (xe, project);
+                                       whens.Add (bw);
+                               } else if (xe.Name == "Otherwise") {
+                                       if (this.whens.Count == 0)
+                                               throw new InvalidProjectFileException ("At least one 'When' element must occur in a 'Choose' element.");
+                                       
+                                       otherwise = new BuildWhen (xe, project);
+                               }
+                       }
                }
                
                public void Evaluate ()