...

src/Syntax/Parsing/Parser.cs

@@ -670,6 +670,11 @@ public static class Parser
                 return new NubArrayType(NubPrimitiveType.U8);
             }
 
+            if (name.Value == "cstring")
+            {
+                return new NubCStringType();
+            }
+
             if (NubPrimitiveType.TryParse(name.Value, out var primitiveTypeKind))
             {
                 return new NubPrimitiveType(primitiveTypeKind.Value);