introduce #[convert] attribute

1 files changed, 7 insertions, 2 deletions

diff --git a/src/trait_sig.rs b/src/trait_sig.rs
index 5d8eddf..a1be44f 100644
--- a/src/trait_sig.rs
+++ b/src/trait_sig.rs
@@ -1,4 +1,5 @@
 use std::collections::HashMap;
+use std::rc::Rc;
 
 use proc_macro2::Span;
 use syn::{
@@ -8,6 +9,7 @@ use syn::{Ident, Signature, TypeImplTrait};
 
 use crate::match_assoc_type;
 use crate::parse_assoc_type::BoxType;
+use crate::parse_attrs::Convert;
 use crate::syn_utils::{iter_type, trait_bounds};
 use crate::transform::{dynamize_function_bounds, TransformError, TypeConverter};
 
@@ -21,6 +23,7 @@ pub enum TypeTransform {
     IntoIterMapCollect(Vec<TypeTransform>),
     Iterator(BoxType, Box<TypeTransform>),
     Result(Box<TypeTransform>, Box<TypeTransform>),
+    Verbatim(Rc<Convert>),
 }
 
 #[derive(Debug)]
@@ -83,6 +86,7 @@ pub fn convert_trait_signature(
         },
         ReturnType::Default => TypeTransform::NoOp,
     };
+
     Ok(SignatureChanges {
         return_type,
         type_param_transforms,
@@ -151,11 +155,12 @@ mod tests {
         transform::{TransformError, TypeConverter},
     };
 
-    fn test_converter() -> TypeConverter<'static> {
+    fn test_converter() -> TypeConverter {
         TypeConverter {
             assoc_type_conversions: HashMap::new(),
             collections: HashMap::new(),
             trait_ident: format_ident!("test"),
+            type_conversions: HashMap::new(),
         }
     }
 
@@ -185,7 +190,7 @@ mod tests {
         let mut type_converter = test_converter();
         let ident = format_ident!("A");
         let dest_inner = Type::Verbatim(quote! {Example});
-        let dest = DestType::Into(&dest_inner);
+        let dest = DestType::Into(dest_inner);
         type_converter.assoc_type_conversions.insert(ident, dest);
 
         assert!(matches!(