Add some comments and alittle clean up

Signed-off-by: James Sturtevant <[email protected]>

crates/csharp/src/interface.rs

@@ -38,7 +38,9 @@ impl InterfaceTypeAndFragments {
     }
 }
 
-/// FunctionBindgen generates the C# code for calling functions defined in wit
+/// InterfaceGenerator generates the C# code for wit interfaces.
+/// It produces types by interface in wit and then generates the interop code
+/// by calling out to FunctionGenerator
 pub(crate) struct InterfaceGenerator<'a> {
     pub(crate) src: String,
     pub(crate) csharp_interop_src: String,

crates/csharp/src/lib.rs

@@ -48,10 +48,3 @@ pub enum CSharpRuntime {
     NativeAOT,
     Mono,
 }
-
-/// Indicates if we are generating for functions in an interface or free standing.
-#[derive(Debug, Clone, PartialEq, Eq)]
-pub enum FunctionLevel {
-    Interface,
-    FreeStanding,
-}

crates/csharp/src/world_generator.rs

@@ -16,6 +16,11 @@ use wit_parser::{
     WorldKey,
 };
 
+/// CSharp is the world generator for wit files. It coordinates all the generated code.
+/// It will call out to interfaceGenerator (and in turn FunctionGenerator)
+/// to get the source to put in each file. It will then assemble those files
+/// adding boilerplate, c# import decorations, and the source generated by
+/// the Interface and Function generators.
 #[derive(Default)]
 pub struct CSharp {
     pub(crate) opts: Opts,