Method decode

src/derive/mod.rs:94–104

Like [`decode`], but saves allocations between calls.

(&mut self, mut bytes: &'a [u8])

    /// Like [`decode`], but saves allocations between calls.
    pub fn decode<'a, T: Decode<'a>>(&mut self, mut bytes: &'a [u8]) -> Result<T, Error> {
        // Safety: Decoders have dangling pointers to `bytes` from previous calls which haven't been
        // cleared. This isn't an issue in practice because they remain as pointers in FastSlice and
        // aren't dereferenced. If we wanted to be safer we could clear all the decoders but this
        // would result in lots of extra code to maintain and a performance/binary size hit.
        // To detect misuse we run miri tests/cargo fuzz where bytes goes out of scope between calls.
        let decoder = unsafe { self.registry.get_non_static::<T::Decoder>() };
        decoder.populate(&mut bytes, 1)?;
        expect_eof(bytes)?;
        Ok(decode_inline_never(decoder))
    }
}

#[cfg(test)]