io: implement AsyncSeek
for Empty
#6663
Merged
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Motivation
While porting a test from
std:io
totokio::io
, I discoveredAsyncSeek
is not implemented fortokio::io::Empty
. This was unexpected, asstd::io::Seek
was implemented forstd::io::Empty
in Rust 1.51.0 (2021-03-25).Solution
This implementation mimics the behavior of the
Seek
implementation forstd::io::Empty
.