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Remove an unnecessary transmute from opaque::Encoder #93456

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merged 1 commit into from
Feb 1, 2022
Merged

Remove an unnecessary transmute from opaque::Encoder #93456

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7 changes: 3 additions & 4 deletions compiler/rustc_serialize/src/opaque.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -130,8 +130,7 @@ impl serialize::Encoder for Encoder {

#[inline]
fn emit_i8(&mut self, v: i8) -> EncodeResult {
let as_u8: u8 = unsafe { std::mem::transmute(v) };
self.emit_u8(as_u8)
self.emit_u8(v as u8)
}

#[inline]
Expand Down Expand Up @@ -629,9 +628,9 @@ impl<'a> serialize::Decoder for Decoder<'a> {

#[inline]
fn read_i8(&mut self) -> i8 {
let as_u8 = self.data[self.position];
let value = self.data[self.position];
self.position += 1;
unsafe { ::std::mem::transmute(as_u8) }
value as i8
}

#[inline]
Expand Down