refactor!: remove dynamic dispatcher registration API

Dispatchers are now always registered at compile time, removing the
`with_dispatcher` / `with_dispatchers` methods and the
`PathfinderConfig` API. The `dispatch_tree` feature now only controls
the matching strategy (trie vs linear list).

2 files changed, 12 insertions, 21 deletions

diff --git a/mingling_macros/src/attr/command.rs b/mingling_macros/src/attr/command.rs
index c2ddde3..4542bd7 100644
--- a/mingling_macros/src/attr/command.rs
+++ b/mingling_macros/src/attr/command.rs
@@ -321,19 +321,16 @@ pub(crate) fn command_attr(attr: TokenStream, item: TokenStream) -> TokenStream
         fn_name.span(),
     );
 
-    // dispatcher internal static (only exists with dispatch_tree feature)
-    #[cfg(feature = "dispatch_tree")]
+    // dispatcher internal static (always exists now that dispatchers are
+    // collected at compile time regardless of the `dispatch_tree` feature)
     let snaked_node = just_fmt::snake_case!(names.node_lit.value());
-    #[cfg(feature = "dispatch_tree")]
     let dispatcher_internal = {
         let ident = Ident::new(
-            &format!("__internal_dispatcher_{}", snaked_node),
+            &format!("__internal_dispatcher_{snaked_node}"),
             fn_name.span(),
         );
         quote! { #vis use super::#ident; }
     };
-    #[cfg(not(feature = "dispatch_tree"))]
-    let dispatcher_internal = quote! {};
 
     let cmd_name = &names.cmd_name;
     let entry_type = &names.entry_type;
diff --git a/mingling_macros/src/attr/dispatcher_clap.rs b/mingling_macros/src/attr/dispatcher_clap.rs
index 9aa7779..2f45b14 100644
--- a/mingling_macros/src/attr/dispatcher_clap.rs
+++ b/mingling_macros/src/attr/dispatcher_clap.rs
@@ -174,8 +174,8 @@ pub(crate) fn dispatcher_clap_attr(attr: TokenStream, item: TokenStream) -> Toke
         None
     };
 
-    let dispatch_tree_entry =
-        get_dispatch_tree_entry(&command_name_str, dispatcher_struct, struct_name);
+    let compile_time_registration =
+        get_compile_time_registration(&command_name_str, dispatcher_struct, struct_name);
 
     let expanded = quote! {
         // Keep the original struct definition
@@ -187,8 +187,8 @@ pub(crate) fn dispatcher_clap_attr(attr: TokenStream, item: TokenStream) -> Toke
         // Generate the help block if enabled
         #help_gen
 
-        // Dispatch tree registration (if feature enabled)
-        #dispatch_tree_entry
+        // Compile-time registration
+        #compile_time_registration
 
         // Generate the dispatcher struct
         #[doc(hidden)]
@@ -223,8 +223,11 @@ pub(crate) fn dispatcher_clap_attr(attr: TokenStream, item: TokenStream) -> Toke
     expanded.into()
 }
 
-#[cfg(feature = "dispatch_tree")]
-fn get_dispatch_tree_entry(
+/// Registers the dispatcher at compile time (collects its node into the
+/// global `COMPILE_TIME_DISPATCHERS` registry and emits the
+/// `__internal_dispatcher_*` static), regardless of the `dispatch_tree`
+/// feature.
+fn get_compile_time_registration(
     command_name_str: &str,
     dispatcher_struct: &Ident,
     entry_name: &Ident,
@@ -234,12 +237,3 @@ fn get_dispatch_tree_entry(
         ::mingling::macros::register_dispatcher!(#node_name_lit, #dispatcher_struct, #entry_name);
     }
 }
-
-#[cfg(not(feature = "dispatch_tree"))]
-fn get_dispatch_tree_entry(
-    _command_name_str: &str,
-    _dispatcher_struct: &Ident,
-    _entry_name: &Ident,
-) -> proc_macro2::TokenStream {
-    quote! {}
-}