Function push_datum

src/repr/src/row.rs:1842–2068

(data: &mut D, datum: Datum)

const LONG: usize = 1 << 32;

fn push_datum<D>(data: &mut D, datum: Datum)
where
    D: Vector<u8>,
{
    match datum {
        Datum::Null => data.push(Tag::Null.into()),
        Datum::False => data.push(Tag::False.into()),
        Datum::True => data.push(Tag::True.into()),
        Datum::Int16(i) => {
            let mbs = min_bytes_signed(i);
            let tag = u8::from(if i.is_negative() {
                Tag::NegativeInt16_0
            } else {
                Tag::NonNegativeInt16_0
            }) + mbs;

            data.push(tag);
            data.extend_from_slice(&i.to_le_bytes()[0..usize::from(mbs)]);
        }
        Datum::Int32(i) => {
            let mbs = min_bytes_signed(i);
            let tag = u8::from(if i.is_negative() {
                Tag::NegativeInt32_0
            } else {
                Tag::NonNegativeInt32_0
            }) + mbs;

            data.push(tag);
            data.extend_from_slice(&i.to_le_bytes()[0..usize::from(mbs)]);
        }
        Datum::Int64(i) => {
            let mbs = min_bytes_signed(i);
            let tag = u8::from(if i.is_negative() {
                Tag::NegativeInt64_0
            } else {
                Tag::NonNegativeInt64_0
            }) + mbs;

            data.push(tag);
            data.extend_from_slice(&i.to_le_bytes()[0..usize::from(mbs)]);
        }
        Datum::UInt8(i) => {
            let mbu = min_bytes_unsigned(i);
            let tag = u8::from(Tag::UInt8_0) + mbu;
            data.push(tag);
            data.extend_from_slice(&i.to_le_bytes()[0..usize::from(mbu)]);
        }
        Datum::UInt16(i) => {
            let mbu = min_bytes_unsigned(i);
            let tag = u8::from(Tag::UInt16_0) + mbu;
            data.push(tag);
            data.extend_from_slice(&i.to_le_bytes()[0..usize::from(mbu)]);
        }
        Datum::UInt32(i) => {
            let mbu = min_bytes_unsigned(i);
            let tag = u8::from(Tag::UInt32_0) + mbu;
            data.push(tag);
            data.extend_from_slice(&i.to_le_bytes()[0..usize::from(mbu)]);