Struct KeyPathsChain 

pub struct KeyPathsChain<T> { /* private fields */ }

KeyPaths chain for composable operations

Implementations

impl<T> KeyPathsChain<T>

pub fn filter_by_keypath<V, F>( self, keypath: KeyPaths<T, V>, predicate: F, ) -> Self

where F: Fn(&V) -> bool,

Filter by keypath predicate

pub fn map_keypath<V, F, R>( self, keypath: KeyPaths<T, V>, f: F, ) -> KeyPathsChain<R>

where F: Fn(&V) -> R,

Map over keypath values

pub fn fold_keypath<V, F, B>( self, keypath: KeyPaths<T, V>, init: B, f: F, ) -> KeyPathResult<B>

where F: Fn(B, &V) -> B,

Fold over keypath values

pub fn collect<B: FromIterator<T>>(self) -> B

Collect into a vector

pub fn take(self, n: usize) -> Self

Take first n elements

pub fn skip(self, n: usize) -> Self

Skip first n elements

pub fn rev(self) -> Self

Reverse the collection