pub fn parse_quantity_from_ticks(ticks: i64, decimals: u8) -> Result<Quantity>Expand description
Converts a Lighter base-amount tick count into a Nautilus [Quantity].
Order sizes on the wire are signed i64 multiples of 10^-decimals
base-asset units. Nautilus [Quantity] is non-negative, so a negative
ticks value is rejected: callers (e.g. position parsers) extract the
sign separately before invoking this helper.
Conversion routes through [Decimal] and [Quantity::from_decimal_dp]
so out-of-range tick counts return an error rather than panicking inside
the unchecked mantissa-exponent constructor.
ยงErrors
Returns an error if decimals exceeds MAX_DECIMALS, if ticks is
negative, or if the resulting value exceeds the [Quantity] range.