Xuanwo commented on code in PR #176:
URL: https://github.com/apache/iceberg-rust/pull/176#discussion_r1492439815


##########
crates/iceberg/src/io.rs:
##########
@@ -240,9 +241,9 @@ impl InputFile {
 }
 
 /// Trait for writing file.
-pub trait FileWrite: AsyncWrite {}
+pub trait FileWrite: AsyncWrite + TokioAsyncWrite + Send + Unpin {}

Review Comment:
   > Can we remove the futures::AsyncWrite? Since for now, we don't need it.
   
   That's fine to remove `futures::AsyncWrite` here if not needed.
   
   But I want to mention that using `AsyncWrite` is more friendly for users who 
don't want to depend on `TokioAsyncWrite` and there are `async_compat` crate to 
transform a `futures::AsyncWrite` to `TokioAsyncWrite`.
   
   Maybe we can add our own trait to support both of them? I believe this is 
another issue and should not be part of this PR.



##########
crates/iceberg/src/io.rs:
##########
@@ -240,9 +241,9 @@ impl InputFile {
 }
 
 /// Trait for writing file.
-pub trait FileWrite: AsyncWrite {}
+pub trait FileWrite: AsyncWrite + TokioAsyncWrite + Send + Unpin {}

Review Comment:
   > Can we remove the futures::AsyncWrite? Since for now, we don't need it.
   
   That's fine to remove `futures::AsyncWrite` here if not needed.
   
   But I want to mention that using `AsyncWrite` is more friendly for users who 
don't want to depend on `TokioAsyncWrite` and there are `async_compat` crate to 
transform a `futures::AsyncWrite` to `TokioAsyncWrite`.
   
   ---
   
   Maybe we can add our own trait to support both of them? I believe this is 
another issue and should not be part of this PR.



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