axum_cometd/ext/
check.rs

1pub(crate) trait CheckExt<T: ?Sized> {
2    fn check<E>(&self, other: &T, error: E) -> Result<(), E>;
3
4    fn check_or<E>(&self, other: &T, error: impl FnOnce() -> E) -> Result<(), E>;
5}
6
7impl<T> CheckExt<T> for T
8where
9    T: PartialEq,
10{
11    fn check<E>(&self, other: &T, error: E) -> Result<(), E> {
12        self.eq(other).then_some(()).ok_or(error)
13    }
14
15    fn check_or<E>(&self, other: &T, error: impl FnOnce() -> E) -> Result<(), E> {
16        self.eq(other).then_some(()).ok_or_else(error)
17    }
18}
19
20impl CheckExt<str> for Option<String> {
21    fn check<E>(&self, other: &str, error: E) -> Result<(), E> {
22        self.as_deref().eq(&Some(other)).then_some(()).ok_or(error)
23    }
24
25    fn check_or<E>(&self, other: &str, error: impl FnOnce() -> E) -> Result<(), E> {
26        self.as_deref()
27            .eq(&Some(other))
28            .then_some(())
29            .ok_or_else(error)
30    }
31}
axum_cometd/ext/check.rs

axum_cometd/ext/
check.rs
