1 | use crate::builder::OsStr; |
2 | |
3 | /// Operations to perform on argument values |
4 | /// |
5 | /// These do not apply to [`ValueSource::DefaultValue`][crate::parser::ValueSource::DefaultValue] |
6 | #[derive (Clone, Debug, PartialEq, Eq)] |
7 | #[cfg_attr (feature = "unstable-v5" , non_exhaustive)] |
8 | pub enum ArgPredicate { |
9 | /// Is the argument present? |
10 | IsPresent, |
11 | /// Does the argument match the specified value? |
12 | Equals(OsStr), |
13 | } |
14 | |
15 | impl<S: Into<OsStr>> From<S> for ArgPredicate { |
16 | fn from(other: S) -> Self { |
17 | Self::Equals(other.into()) |
18 | } |
19 | } |
20 | |