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FutureState

reratui::hooks

Enum FutureState 

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pub enum FutureState<T, E = String> {
    Idle,
    Pending,
    Resolved(T),
    Error(E),
}
Expand description

Represents the current state of a future operation

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Idle

The future has not been started yet

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Pending

The future is currently pending (actively running)

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Resolved(T)

The future has resolved successfully with a value

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Error(E)

The future has failed with an error

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impl<T, E> FutureState<T, E>

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pub fn is_idle(&self) -> bool

Returns true if the future has not been started yet

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pub fn is_pending(&self) -> bool

Returns true if the future is currently pending

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pub fn is_resolved(&self) -> bool

Returns true if the future has resolved successfully

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pub fn is_error(&self) -> bool

Returns true if the future has failed with an error

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pub fn value(&self) -> Option<&T>

Returns the resolved value if available

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pub fn error(&self) -> Option<&E>

Returns the error if available

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pub fn map<U, F>(self, f: F) -> FutureState<U, E>
where F: FnOnce(T) -> U,

Maps the resolved value to a new type

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pub fn map_err<F, G>(self, f: F) -> FutureState<T, G>
where F: FnOnce(E) -> G,

Maps the error to a new type

Trait Implementations§

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impl<T: Clone, E: Clone> Clone for FutureState<T, E>

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fn clone(&self) -> FutureState<T, E>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T: Debug, E: Debug> Debug for FutureState<T, E>

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

Formats the value using the given formatter. Read more
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impl<T, E> Default for FutureState<T, E>

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fn default() -> FutureState<T, E>

Returns the “default value” for a type. Read more
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impl<T, E> From<Result<T, E>> for FutureState<T, E>

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fn from(result: Result<T, E>) -> Self

Converts to this type from the input type.
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impl<T: PartialEq, E: PartialEq> PartialEq for FutureState<T, E>

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fn eq(&self, other: &FutureState<T, E>) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl<T: PartialEq, E: PartialEq> StructuralPartialEq for FutureState<T, E>

Auto Trait Implementations§

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impl<T, E> Freeze for FutureState<T, E>
where T: Freeze, E: Freeze,

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impl<T, E> RefUnwindSafe for FutureState<T, E>
where T: RefUnwindSafe, E: RefUnwindSafe,

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impl<T, E> Send for FutureState<T, E>
where T: Send, E: Send,

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impl<T, E> Sync for FutureState<T, E>
where T: Sync, E: Sync,

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impl<T, E> Unpin for FutureState<T, E>
where T: Unpin, E: Unpin,

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impl<T, E> UnsafeUnpin for FutureState<T, E>
where T: UnsafeUnpin, E: UnsafeUnpin,

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impl<T, E> UnwindSafe for FutureState<T, E>
where T: UnwindSafe, E: 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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. 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<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. 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 = !

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

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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more