Function contrafact::mapped_fallible [−][src]
pub fn mapped_fallible<'a, T, F, S>(reason: S, f: F) -> MappedFact<'a, T> where
S: ToString,
T: Bounds,
F: 'static + Fn(&T) -> Result<Facts<'a, T>>,
Expand description
A version of mapped
whose closure returns a Result