From 4588e17f7ddacd8391a5c881a209735e08d48797 Mon Sep 17 00:00:00 2001 From: 魏曹先生 <1992414357@qq.com> Date: Tue, 4 Aug 2026 13:26:48 +0800 Subject: feat: add entry metadata system with compile-time typed values Add `Metadata` trait and `#[metadata(Entry)]` attribute macro to attach arbitrary, compile-time-typed metadata to entries. Implement `ProgramCollect::get_metadata()` for runtime retrieval, backed by a global registry populated by `register_metadata!`. Extend `pathf` with `MetadataPattern` to resolve metadata types across modules at build time. Add two examples demonstrating metadata usage with and without pathf integration. --- mingling_core/src/program/collection.rs | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'mingling_core/src/program') diff --git a/mingling_core/src/program/collection.rs b/mingling_core/src/program/collection.rs index 1b4d7dd..5b1152a 100644 --- a/mingling_core/src/program/collection.rs +++ b/mingling_core/src/program/collection.rs @@ -66,6 +66,18 @@ pub trait ProgramCollect { /// Render help for Entry fn render_help(any: AnyOutput) -> RenderResult; + /// Retrieves compile-time registered metadata of type `T` for the given + /// enum member, if any was registered via `#[metadata(Entry)]`. + /// + /// Returns `None` when no metadata of type `T` has been registered for the + /// provided member, or when the requested `T` does not match the registered + /// metadata type. The concrete implementation of this method is generated + /// by the `gen_program!` macro. + fn get_metadata(member_id: Self::Enum) -> Option { + let _ = member_id; + None + } + /// Find a matching chain to continue execution based on the input [AnyOutput](./struct.AnyOutput.html), returning a new [AnyOutput](./struct.AnyOutput.html) #[cfg(feature = "async")] fn do_chain( -- cgit