Function rustc_ap_serialize::leb128::write_signed_leb128_to

pub fn write_signed_leb128_to<W>(value: i128, write: W) where
    W: FnMut(u8), 

encodes an integer using signed leb128 encoding and stores the result using a callback function.

The callback write is called once for each position that is to be written to with the byte to be encoded at that position.