Struct SequentialFold 

pub struct SequentialFold<L, S1, S2, F1, F2, M>
where
    F1: Fold<L, S1>,
    F2: Fold<L, S2>,
    M: Fn(&S1, &FoldContext) -> FoldContext,
{ /* private fields */ }

Sequential fold — run one fold, then use its output to inform another.

Implementations

impl<L, S1, S2, F1, F2, M> SequentialFold<L, S1, S2, F1, F2, M>

where F1: Fold<L, S1>, F2: Fold<L, S2>, M: Fn(&S1, &FoldContext) -> FoldContext,

pub fn new(first: F1, second: F2, context_mapper: M) -> Self

Create a sequential fold.

pub fn execute<'a, I>( &self, entries: I, context: &FoldContext, ) -> (FoldOutcome<S1>, FoldOutcome<S2>)

where I: IntoIterator<Item = &'a L> + Clone, L: 'a,

Execute the sequential fold.