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<B>` trait and `#[metadata(Entry)]` attribute macro
to attach arbitrary, compile-time-typed metadata to entries.
Implement `ProgramCollect::get_metadata<T>()` 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.
---
 examples/example-combine-pathf-metadata/Cargo.lock | 226 +++++++++++++++++++++
 1 file changed, 226 insertions(+)
 create mode 100644 examples/example-combine-pathf-metadata/Cargo.lock

(limited to 'examples/example-combine-pathf-metadata/Cargo.lock')

diff --git a/examples/example-combine-pathf-metadata/Cargo.lock b/examples/example-combine-pathf-metadata/Cargo.lock
new file mode 100644
index 0000000..6fb41c4
--- /dev/null
+++ b/examples/example-combine-pathf-metadata/Cargo.lock
@@ -0,0 +1,226 @@
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-- 
cgit