pub(crate) fn parse_unstability<S: Stage>(
cx: &AcceptContext<'_, '_, S>,
args: &ArgParser<'_>,
) -> Option<(Symbol, StabilityLevel)>
Expand description
attribute, and return the feature name and its stability information.
pub(crate) fn parse_unstability<S: Stage>(
cx: &AcceptContext<'_, '_, S>,
args: &ArgParser<'_>,
) -> Option<(Symbol, StabilityLevel)>
attribute, and return the feature name and its stability information.