feat(rust)!: use path in generated export! macro instead of ident

Changes the generated `export!` macro to accept a `$ty:path` instead of
`$ty:ident` for more flexibility.

Requires the `with_types_in` separator to be changed to
`, with_types_in`, since a `path` cannot be followed by an ident in
macros.

Author: tqwewe

crates/guest-rust/src/lib.rs

@@ -574,7 +574,7 @@ extern crate std;
 /// #     // ...
 /// # }
 /// #
-/// export!(MyComponent with_types_in self);
+/// export!(MyComponent, with_types_in self);
 /// #
 /// # fn main() {}
 /// ```
@@ -607,7 +607,7 @@ extern crate std;
 /// #     // ...
 /// # }
 /// #
-/// bindings::export!(MyComponent with_types_in bindings);
+/// bindings::export!(MyComponent, with_types_in bindings);
 /// #
 /// # fn main() {}
 /// ```

crates/rust/src/interface.rs

@@ -277,7 +277,7 @@ fn _resource_rep(handle: u32) -> *mut u8
 #[doc(hidden)]
 {macro_export}
 macro_rules! {macro_name} {{
-    ($ty:ident with_types_in $($path_to_types:tt)*) => (const _: () = {{
+    ($ty:path, with_types_in $($path_to_types:tt)*) => (const _: () = {{
 "
         );
 

crates/rust/src/lib.rs

@@ -875,16 +875,16 @@ impl As{upcase} for {to_convert} {{
 #[doc(hidden)]
 {macro_export}
 macro_rules! __export_{world_name}_impl {{
-    ($ty:ident) => ({default_bindings_module}::{export_macro_name}!($ty with_types_in {default_bindings_module}););
-    ($ty:ident with_types_in $($path_to_types_root:tt)*) => ("#
+    ($ty:path) => ({default_bindings_module}::{export_macro_name}!($ty => {default_bindings_module}););
+    ($ty:path, with_types_in $($path_to_types_root:tt)*) => ("#
         );
         for (name, path_to_types) in self.export_macros.iter() {
             let mut path = "$($path_to_types_root)*".to_string();
             if !path_to_types.is_empty() {
                 path.push_str("::");
                 path.push_str(path_to_types)
             }
-            uwriteln!(self.src, "{path}::{name}!($ty with_types_in {path});");
+            uwriteln!(self.src, "{path}::{name}!($ty, with_types_in {path});");
         }
 
         // See comments in `finish` for why this conditionally happens here.