feat(pathf): add build-time type path resolution system

Add `mingling_pathf` sub-crate and `pathf` feature for automatic
resolution of Mingling type module paths at build time. Scans source
files, identifies macro invocations via pattern matchers, and generates
mapping files consumed by `gen_program!()`.

1 files changed, 10 insertions, 0 deletions

diff --git a/mingling_macros/src/lib.rs b/mingling_macros/src/lib.rs
index 1b0cbb5..8955b37 100644
--- a/mingling_macros/src/lib.rs
+++ b/mingling_macros/src/lib.rs
@@ -2037,7 +2037,17 @@ pub fn program_final_gen(_input: TokenStream) -> TokenStream {
         quote! { u128 }
     };
 
+    let pathf_include = if cfg!(feature = "pathf") {
+        quote! {
+            include!(concat!(env!("OUT_DIR"), "/", env!("CARGO_PKG_NAME"), "/type_using.rs"));
+        }
+    } else {
+        quote! {}
+    };
+
     let expanded = quote! {
+        #pathf_include
+
         #[derive(Debug, PartialEq, Eq, Clone)]
         #[repr(#repr_type)]
         #[allow(nonstandard_style)]