Struct aws_smithy_async::future::fn_stream::TryFlatMap

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pub struct TryFlatMap<I>(_);

Expand description

Utility wrapper to flatten paginated results

When flattening paginated results, it’s most convenient to produce an iterator where the Result is present in each item. This provides items() which can wrap an stream of Result<Page, Err> and produce a stream of Result<Item, Err>.

Implementations

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impl TryFlatMap

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pub fn new(i: I) -> Self

Create a TryFlatMap that wraps the input

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pub fn flat_map<M, Item, Iter, Page, Err>(
 self,
 map: M
) -> impl Stream<Item = Result<Item, Err>> where
 I: Stream<Item = Result<Page, Err>>,
 M: Fn(Page) -> Iter,
 Iter: IntoIterator<Item = Item>,

Produce a new [Stream] by mapping this stream with map then flattening the result

Trait Implementations

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impl<I: Debug> Debug for TryFlatMap

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl RefUnwindSafe for TryFlatMap where
I: RefUnwindSafe,

impl Send for TryFlatMap where
I: Send,

impl Sync for TryFlatMap where
I: Sync,

impl Unpin for TryFlatMap where
I: Unpin,

impl UnwindSafe for TryFlatMap where
I: 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,

const: unstable · source

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,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

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<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct aws_smithy_async::future::fn_stream::TryFlatMap

Implementations

impl<I> TryFlatMap<I>

pub fn new(i: I) -> Self

pub fn flat_map<M, Item, Iter, Page, Err>(
    self,
    map: M
) -> impl Stream<Item = Result<Item, Err>> where
    I: Stream<Item = Result<Page, Err>>,
    M: Fn(Page) -> Iter,
    Iter: IntoIterator<Item = Item>,

Trait Implementations

impl<I: Debug> Debug for TryFlatMap<I>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Auto Trait Implementations

impl<I> RefUnwindSafe for TryFlatMap<I> where
I: RefUnwindSafe,

impl<I> Send for TryFlatMap<I> where
I: Send,

impl<I> Sync for TryFlatMap<I> where
I: Sync,

impl<I> Unpin for TryFlatMap<I> where
I: Unpin,

impl<I> UnwindSafe for TryFlatMap<I> where
I: UnwindSafe,

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct aws_smithy_async::future::fn_stream::TryFlatMap

Implementations

impl<I> TryFlatMap<I>

pub fn new(i: I) -> Self

pub fn flat_map<M, Item, Iter, Page, Err>( self, map: M) -> impl Stream<Item = Result<Item, Err>> where I: Stream<Item = Result<Page, Err>>, M: Fn(Page) -> Iter, Iter: IntoIterator<Item = Item>,

Trait Implementations

impl<I: Debug> Debug for TryFlatMap<I>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Auto Trait Implementations

impl<I> RefUnwindSafe for TryFlatMap<I> where I: RefUnwindSafe,

impl<I> Send for TryFlatMap<I> where I: Send,

impl<I> Sync for TryFlatMap<I> where I: Sync,

impl<I> Unpin for TryFlatMap<I> where I: Unpin,

impl<I> UnwindSafe for TryFlatMap<I> where I: UnwindSafe,

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

pub fn flat_map<M, Item, Iter, Page, Err>(
self,
map: M
) -> impl Stream<Item = Result<Item, Err>> where
I: Stream<Item = Result<Page, Err>>,
M: Fn(Page) -> Iter,
Iter: IntoIterator<Item = Item>,

impl<I> RefUnwindSafe for TryFlatMap<I> where
I: RefUnwindSafe,

impl<I> Send for TryFlatMap<I> where
I: Send,

impl<I> Sync for TryFlatMap<I> where
I: Sync,

impl<I> Unpin for TryFlatMap<I> where
I: Unpin,

impl<I> UnwindSafe for TryFlatMap<I> where
I: UnwindSafe,

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,