Add Identifier property to Directive

libs/UIX.Asm/Models/Imports.cs

@@ -1,6 +1,15 @@
 namespace Microsoft.Iris.Asm.Models;
 
-public record NamespaceImport(string Uri, string Name) : Import
+public record NamespaceImport : Import
 {
-    public override string ToString() => $".import-ns {Uri} as {Name}";
+    public NamespaceImport(string uri, string name) : base("ns")
+    {
+        Uri = uri;
+        Name = name;
+    }
+
+    public string Uri { get; init; }
+    public string Name { get; init; }
+
+    public override string ToString() => $"{base.ToString()} {Uri} as {Name}";
 }

libs/UIX.Asm/Models/Interfaces.cs

@@ -14,11 +14,24 @@ public abstract record AsmItem : IAsmItem
     internal const string DebuggerDisplay = "({Line}, {Column})";
 }
 
-public interface IDirective : IAsmItem;
-public abstract record Directive : AsmItem, IDirective;
+public interface IDirective : IAsmItem
+{
+    string Identifier { get; init; }
+}
+public abstract record Directive(string Identifier) : AsmItem, IDirective
+{
+    public override string ToString() => $".{Identifier}";
+}
 
 public interface IImport : IDirective;
-public abstract record Import : Directive, IImport;
+public abstract record Import : Directive, IImport
+{
+    public Import(string Type) : base($"import-{Type}")
+    {
+    }
+
+    public override string ToString() => base.ToString();
+}
 
 public interface IBodyItem : IAsmItem;
 public abstract record BodyItem : AsmItem, IBodyItem;