axum-cometd 0.9.3

Framework for CometD server creation
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

pub(crate) trait CheckExt<T: ?Sized> {
    fn check<E>(&self, other: &T, error: E) -> Result<(), E>;

    fn check_or<E>(&self, other: &T, error: impl FnOnce() -> E) -> Result<(), E>;
}

impl<T> CheckExt<T> for T
where
    T: PartialEq,
{
    fn check<E>(&self, other: &T, error: E) -> Result<(), E> {
        self.eq(other).then_some(()).ok_or(error)
    }

    fn check_or<E>(&self, other: &T, error: impl FnOnce() -> E) -> Result<(), E> {
        self.eq(other).then_some(()).ok_or_else(error)
    }
}

impl CheckExt<str> for Option<String> {
    fn check<E>(&self, other: &str, error: E) -> Result<(), E> {
        self.as_deref().eq(&Some(other)).then_some(()).ok_or(error)
    }

    fn check_or<E>(&self, other: &str, error: impl FnOnce() -> E) -> Result<(), E> {
        self.as_deref()
            .eq(&Some(other))
            .then_some(())
            .ok_or_else(error)
    }
}