pushgen::structs

Struct FilterMap

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pub struct FilterMap<Gen, Func> { /* private fields */ }
Expand description

Implements a mapped generator. See .map() for details.

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impl<Gen, Func, Out> FilterMap<Gen, Func>
where Gen: Generator, Func: FnMut(Gen::Output) -> Option<Out>,

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pub fn new(source: Gen, transform: Func) -> Self

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impl<Gen: Clone, Func: Clone> Clone for FilterMap<Gen, Func>

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fn clone(&self) -> FilterMap<Gen, Func>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<Gen, Func, Out> Generator for FilterMap<Gen, Func>
where Gen: Generator, Func: FnMut(Gen::Output) -> Option<Out>,

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type Output = Out

Data-type generated by the generator.
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fn run( &mut self, output: impl FnMut(Self::Output) -> ValueResult, ) -> GeneratorResult

Run the generator, emitting values to the output closure. Read more
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fn try_advance(&mut self, n: NonZeroUsize) -> (usize, GeneratorResult)

Try to advance the generator n values, ignoring them. Read more

Auto Trait Implementations§

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impl<Gen, Func> Freeze for FilterMap<Gen, Func>
where Gen: Freeze, Func: Freeze,

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impl<Gen, Func> RefUnwindSafe for FilterMap<Gen, Func>
where Gen: RefUnwindSafe, Func: RefUnwindSafe,

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impl<Gen, Func> Send for FilterMap<Gen, Func>
where Gen: Send, Func: Send,

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impl<Gen, Func> Sync for FilterMap<Gen, Func>
where Gen: Sync, Func: Sync,

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impl<Gen, Func> Unpin for FilterMap<Gen, Func>
where Gen: Unpin, Func: Unpin,

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impl<Gen, Func> UnwindSafe for FilterMap<Gen, Func>
where Gen: UnwindSafe, Func: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> DynGenerator for T
where T: Generator,

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type Output = <T as Generator>::Output

The output type of this generator.
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fn run_dyn( &mut self, output: &mut dyn FnMut(<T as DynGenerator>::Output) -> ValueResult, ) -> GeneratorResult

Run the generator using a &mut dyn FnMut instead of impl FnMut. This
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> GeneratorExt for T
where T: Generator,

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fn all<F>(&mut self, predicate: F) -> bool
where F: FnMut(Self::Output) -> bool,

Tests if every value from the generator matches a predicate. Read more
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fn any<F>(&mut self, predicate: F) -> bool
where F: FnMut(Self::Output) -> bool,

Tests if any value matches a predicate. Read more
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fn next(&mut self) -> Result<Self::Output, GeneratorResult>

Retrieve the next value from the generator Read more
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fn last(self) -> Option<Self::Output>
where Self: Sized,

Exhausts the generator, returning the last element. Read more
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fn cloned<'a, T>(self) -> Cloned<Self>
where Self: Generator<Output = &'a T> + Sized, T: 'a + Clone,

Creates a generator that clones all of its elements. Read more
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fn copied<'a, T>(self) -> Copied<Self>
where T: 'a + Copy, Self: Generator<Output = &'a T> + Sized,

Creates a generator that copies all of its elements. Read more
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fn chain<Gen>(self, other: Gen) -> Chain<Self, Gen>
where Self: Sized, Gen: Generator<Output = Self::Output>,

Creates a generator by chaining two generators, running them one after the other. Read more
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fn filter<Pred>(self, predicate: Pred) -> Filter<Self, Pred>
where Self: Sized, Pred: FnMut(&Self::Output) -> bool,

Create a filtered generator. Only values for which the predicate returns true will be passed on. Read more
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fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>
where Self: Sized, F: FnMut(Self::Output) -> Option<B>,

Creates a generator that both filters and maps. Read more
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fn map<Trans, Out>(self, transform_fn: Trans) -> Map<Self, Trans>
where Self: Sized, Trans: FnMut(Self::Output) -> Out,

Takes a closure and creates a generator which calls the closure on each value. Read more
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fn skip(self, n: usize) -> Skip<Self>
where Self: Sized,

Skips over n values, consuming and ignoring them. Read more
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fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>
where Self: Sized, P: FnMut(&Self::Output) -> bool,

Creates a generator that skips values based on a predicate. Read more
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fn take(self, n: usize) -> Take<Self>
where Self: Sized,

Takes n values and then completes the generator. Read more
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fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>
where Self: Sized, P: FnMut(&Self::Output) -> bool,

Creates a generator that pushes values based on a predicate. Read more
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fn flat_map<U, F>(self, f: F) -> Flatten<Map<Self, F>>
where Self: Sized, U: IntoGenerator, F: FnMut(Self::Output) -> U,

Creates a generator that works like map, but flattens nested structure. Read more
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fn flatten(self) -> Flatten<Self>
where Self: Sized, Self::Output: IntoGenerator,

Creates a generator that flattens nested structure. Read more
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fn for_each<Func>(&mut self, func: Func) -> GeneratorResult
where Self: Sized, Func: FnMut(Self::Output),

Run a generator to completion, or until it is stopped, and call a closure for each value produced by the generator. Read more
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fn try_for_each<F, E>(&mut self, f: F) -> Result<(), E>
where Self: Sized, F: FnMut(Self::Output) -> Result<(), E>,

A generator method that applies a fallible function to each item produced, stopping at the first error and returning that error. Read more
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fn zip<Right>(self, right: Right) -> Zip<Self, Right>
where Self: Sized, Right: Generator,

Zips the output of two generators into a single generator of pairs. Read more
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fn dedup(self) -> Dedup<Self>
where Self: Sized, Self::Output: PartialEq,

Create a de-duplicating generator, removing consecutive duplicate values. Read more
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fn iter(self) -> IteratorAdaptor<Self> ⓘ
where Self: Sized,

Create an iterator from a generator. Read more
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fn step_by(self, step_size: usize) -> StepBy<Self>
where Self: Sized,

Create a generator that starts at the same point but steps by the given amount. Read more
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fn boxed(self) -> BoxedGenerator<Self::Output>
where Self: Sized + 'static,

Available on crate feature std only.
Box a generator, making it possible to use as return value in for instance traits. Read more
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fn sum<S>(self) -> S
where Self: Sized, S: Sum<Self::Output>,

Sums the values of a generator. Takes each value and adds them together and returns the result. Read more
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fn product<P>(self) -> P
where Self: Sized, P: Product<Self::Output>,

Multiplies the values of a generator. Takes each value and adds them together and returns the result. Read more
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fn min(self) -> Option<Self::Output>
where Self: Sized, Self::Output: Ord,

Returns the minimum value of a generator. Read more
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fn min_by<F>(self, compare: F) -> Option<Self::Output>
where Self: Sized, F: FnMut(&Self::Output, &Self::Output) -> Ordering,

Returns the value that gives the minimum value when compared with the specified comparison function. Read more
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fn try_min_by<F>( &mut self, partial: Option<Self::Output>, compare: F, ) -> TryReduction<Option<Self::Output>>
where Self: Sized, F: FnMut(&Self::Output, &Self::Output) -> Ordering,

Returns the value that gives the minimum value when compared with the specified comparison function. Read more
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fn min_by_key<F, B>(self, f: F) -> Option<Self::Output>
where Self: Sized, F: FnMut(&Self::Output) -> B, B: Ord,

Returns the value that gives the minimum value from the specified function. Read more
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fn max(self) -> Option<Self::Output>
where Self: Sized, Self::Output: Ord,

Returns the maximum value of a generator. Read more
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fn max_by<F>(self, compare: F) -> Option<Self::Output>
where Self: Sized, F: FnMut(&Self::Output, &Self::Output) -> Ordering,

Returns the value that gives the maximum value when compared with the specified comparison function. Read more
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fn try_max_by<F>( &mut self, partial: Option<Self::Output>, compare: F, ) -> TryReduction<Option<Self::Output>>
where Self: Sized, F: FnMut(&Self::Output, &Self::Output) -> Ordering,

Returns the value that gives the maximum value when compared with the specified comparison function. Read more
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fn max_by_key<F, B>(self, f: F) -> Option<Self::Output>
where Self: Sized, F: FnMut(&Self::Output) -> B, B: Ord,

Returns the value that gives the maximum value from the specified function. Read more
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fn fold<B, F>(self, init: B, folder: F) -> B
where Self: Sized, F: FnMut(B, Self::Output) -> B,

Folds every element into an accumulator by applying an operation, returning the final result. Read more
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fn try_fold<B, F, E>( &mut self, init: B, folder: F, ) -> Result<TryReduction<B>, E>
where Self: Sized, F: FnMut(B, Self::Output) -> Result<B, E>,

Apply a function as long as the return value is successful, producing a single final value. Read more
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fn reduce<F>(self, reducer: F) -> Option<Self::Output>
where Self: Sized, F: FnMut(Self::Output, Self::Output) -> Self::Output,

Reduces the elements to a single one by repeatedly applying a reducing operation. Read more
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fn try_reduce<F>( &mut self, prev_reduction: Option<Self::Output>, reducer: F, ) -> TryReduction<Option<Self::Output>>
where Self: Sized, F: FnMut(Self::Output, Self::Output) -> Self::Output,

Reduces the values to a single value by repeatedly applying a reducing operation. Read more
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fn collect<B>(self) -> B
where Self: Sized, B: FromGenerator<Self::Output>,

Transforms a generator into a collection. Read more
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fn enumerate(self) -> Enumerate<Self>
where Self: Sized,

Creates a generator which gives the current generation count as well as the value. Read more
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fn inspect<F>(self, inspector: F) -> Inspect<Self, F>
where Self: Sized, F: FnMut(&Self::Output),

Does something with each value from the generator, passing the value on. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<G> IntoGenerator for G
where G: Generator,

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type Output = <G as Generator>::Output

Data-type generated by the generator.
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type IntoGen = G

Which kind of generator are we turning this into?
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fn into_gen(self) -> <G as IntoGenerator>::IntoGen

Creates a generator from a value. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.