Commits on Apr 21, 2018

1. Improve Serialize of adjacently tagged newtype variants …

   The existing implementation was unnecessarily complicated.
   
       struct __AdjacentlyTagged<'__a> {
           data: (&'__a String,),
           phantom: _serde::export::PhantomData<AdjacentlyTagged>,
       }
       impl<'__a> _serde::Serialize for __AdjacentlyTagged<'__a> {
           fn serialize<__S>(
               &self,
               __serializer: __S,
           ) -> _serde::export::Result<__S::Ok, __S::Error>
           where
               __S: _serde::Serializer,
           {
               let (__field0,) = self.data;
               _serde::Serialize::serialize(__field0, __serializer)
           }
       }
       _serde::ser::SerializeStruct::serialize_field(
           &mut __struct,
           "content",
           &__AdjacentlyTagged {
               data: (__field0,),
               phantom: _serde::export::PhantomData::<AdjacentlyTagged>,
           },
       )?;
   
   Instead the new implementation does simply:
   
       _serde::ser::SerializeStruct::serialize_field(
           &mut __struct,
           "content",
           __field0,
       )?;

   

   dtolnay committed Apr 21, 2018
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