return BoxedError from bytes_encode_into_writer for now

Author: antonilol

heed-traits/Cargo.toml

@@ -9,4 +9,3 @@ readme = "../README.md"
 edition = "2021"
 
 [dependencies]
-either = "1.13.0"

heed-traits/src/lib.rs

@@ -13,8 +13,6 @@ use std::cmp::{Ord, Ordering};
 use std::error::Error as StdError;
 use std::io;
 
-use either::Either;
-
 /// A boxed `Send + Sync + 'static` error.
 pub type BoxedError = Box<dyn StdError + Send + Sync + 'static>;
 
@@ -35,20 +33,14 @@ pub trait BytesEncode<'a> {
     /// Encode the given item as bytes and write it into the writer. Returns the amount of bytes
     /// that were written. This function by default forwards to
     /// [`bytes_encode`][BytesEncode::bytes_encode].
-    ///
-    /// # Errors
-    ///
-    /// [`Either`] is used to handle the 2 different errors this function can return.
-    /// [`Either::Left`] is used for errors from [`bytes_encode`][BytesEncode::bytes_encode] and
-    /// [`Either::Right`] is used for errors from the writer (I/O errors).
     fn bytes_encode_into_writer<W: io::Write>(
         item: &'a Self::EItem,
         writer: &mut W,
-    ) -> Result<usize, Either<Self::Error, io::Error>> {
-        let bytes = Self::bytes_encode(item).map_err(Either::Left)?;
+    ) -> Result<usize, BoxedError> {
+        let bytes = Self::bytes_encode(item)?;
         let bytes = bytes.as_ref();
 
-        writer.write_all(bytes).map_err(Either::Right)?;
+        writer.write_all(bytes)?;
 
         Ok(bytes.len())
     }