Allow generics in impl_borrow_decode (bincode-org#635)

* Allow generics in impl_borrow_decode * Use impl_borrow_decode for PhantomData * Update impls.rs * Update mod.rs
Vrtgs · Jun 19, 2023 · 224e412 · 224e412
1 parent f9f87ea
commit 224e412
Show file tree

Hide file tree

Showing 2 changed files with 3 additions and 7 deletions.
diff --git a/src/de/impls.rs b/src/de/impls.rs
@@ -514,11 +514,7 @@ impl<T> Decode for core::marker::PhantomData<T> {
  Ok(core::marker::PhantomData)
  }
 }
-impl<'de, T> BorrowDecode<'de> for core::marker::PhantomData<T> {
- fn borrow_decode<D: BorrowDecoder<'de>>(_: &mut D) -> Result<Self, DecodeError> {
- Ok(core::marker::PhantomData)
- }
-}
+impl_borrow_decode!(core::marker::PhantomData<T>, T);
 
 impl<T> Decode for Option<T>
 where

diff --git a/src/de/mod.rs b/src/de/mod.rs
@@ -100,8 +100,8 @@ pub trait BorrowDecode<'de>: Sized {
 /// Helper macro to implement `BorrowDecode` for any type that implements `Decode`.
 #[macro_export]
 macro_rules! impl_borrow_decode {
- ($ty:ty) => {
- impl<'de> $crate::BorrowDecode<'de> for $ty {
+ ($ty:ty $(, $param:ident),*) => {
+ impl<'de $(, $param)*> $crate::BorrowDecode<'de> for $ty {
  fn borrow_decode<D: $crate::de::BorrowDecoder<'de>>(
  decoder: &mut D,
  ) -> core::result::Result<Self, $crate::error::DecodeError> {