if first type bound isn't Into<T> auto-box it

1 files changed, 2 insertions, 0 deletions

diff --git a/src/parse_trait_sig.rs b/src/parse_trait_sig.rs
index b7b7b3f..76402ac 100644
--- a/src/parse_trait_sig.rs
+++ b/src/parse_trait_sig.rs
@@ -6,6 +6,7 @@ use syn::{
 };
 use syn::{Ident, Signature, TypeImplTrait};
 
+use crate::parse_assoc_type::BoxType;
 use crate::syn_utils::{find_in_type, trait_bounds, TypeMatcher};
 use crate::transform::{dynamize_function_bounds, AssocTypeConversions, TransformError};
 use crate::AssocTypeMatcher;
@@ -14,6 +15,7 @@ use crate::AssocTypeMatcher;
 pub enum TypeTransform {
     NoOp,
     Into,
+    Box(BoxType),
     Map(Box<TypeTransform>),
     Result(Box<TypeTransform>, Box<TypeTransform>),
 }