Add intermediate levels to track how IR has been lowered.

4 files changed, 14 insertions, 2 deletions

diff --git a/src/WixToolset.Core/Compiler.cs b/src/WixToolset.Core/Compiler.cs
index de718c84..8c0c4a39 100644
--- a/src/WixToolset.Core/Compiler.cs
+++ b/src/WixToolset.Core/Compiler.cs
@@ -163,6 +163,8 @@ namespace WixToolset.Core
                 this.Core = null;
             }
 
+            target.UpdateLevel(IntermediateLevels.Compiled);
+
             return this.Messaging.EncounteredError ? null : target;
         }
 
diff --git a/src/WixToolset.Core/Librarian.cs b/src/WixToolset.Core/Librarian.cs
index b6be73e9..d862c326 100644
--- a/src/WixToolset.Core/Librarian.cs
+++ b/src/WixToolset.Core/Librarian.cs
@@ -63,7 +63,9 @@ namespace WixToolset.Core
                     section.LibraryId = context.LibraryId;
                 }
 
-                library = new Intermediate(context.LibraryId, sections, localizationsByCulture);
+                library = new Intermediate(context.LibraryId, IntermediateLevels.Compiled, sections, localizationsByCulture);
+
+                library.UpdateLevel(IntermediateLevels.Combined);
 
                 this.Validate(library);
             }
diff --git a/src/WixToolset.Core/Linker.cs b/src/WixToolset.Core/Linker.cs
index 6ef252b7..f05aabd1 100644
--- a/src/WixToolset.Core/Linker.cs
+++ b/src/WixToolset.Core/Linker.cs
@@ -70,6 +70,12 @@ namespace WixToolset.Core
                 extension.PreLink(this.Context);
             }
 
+            var invalidIntermediates = this.Context.Intermediates.Where(i => !i.HasLevel(Data.IntermediateLevels.Compiled));
+            if (invalidIntermediates.Any())
+            {
+                this.Messaging.Write(ErrorMessages.IntermediatesMustBeCompiled(String.Join(", ", invalidIntermediates.Select(i => i.Id))));
+            }
+
             Intermediate intermediate = null;
             try
             {
@@ -564,7 +570,7 @@ namespace WixToolset.Core
                 var collate = new CollateLocalizationsCommand(this.Messaging, localizations);
                 var localizationsByCulture = collate.Execute();
 
-                intermediate = new Intermediate(resolvedSection.Id, new[] { resolvedSection }, localizationsByCulture);
+                intermediate = new Intermediate(resolvedSection.Id, Data.IntermediateLevels.Linked, new[] { resolvedSection }, localizationsByCulture);
 
 #if MOVE_TO_BACKEND
                 this.CheckOutputConsistency(output);
diff --git a/src/WixToolset.Core/Resolver.cs b/src/WixToolset.Core/Resolver.cs
index 6913ce98..d4a03d82 100644
--- a/src/WixToolset.Core/Resolver.cs
+++ b/src/WixToolset.Core/Resolver.cs
@@ -114,6 +114,8 @@ namespace WixToolset.Core
 
             var expectedEmbeddedFiles = filesWithEmbeddedFiles.GetExpectedEmbeddedFiles();
 
+            context.IntermediateRepresentation.UpdateLevel(IntermediateLevels.Resolved);
+
             return new ResolveResult
             {
                 Codepage = codepage.HasValue ? codepage.Value : -1,