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PrintObserver

rx_core::observer

Struct PrintObserver 

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pub struct PrintObserver<In, InError = Infallible>
where
    In: Signal + Debug,
    InError: Signal + Debug,
{ /* private fields */ }
Expand description

A simple observer that prints out received values using std::fmt::Debug

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impl<In, InError> PrintObserver<In, InError>
where In: Signal + Debug, InError: Signal + Debug,

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pub fn new(message: &'static str) -> PrintObserver<In, InError>

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impl<In, InError> Clone for PrintObserver<In, InError>
where In: Signal + Debug, InError: Signal + Debug,

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fn clone(&self) -> PrintObserver<In, InError>

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<In, InError> Default for PrintObserver<In, InError>
where In: Signal + Debug, InError: Signal + Debug,

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fn default() -> PrintObserver<In, InError>

Returns the “default value” for a type. Read more
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impl<In, InError> Drop for PrintObserver<In, InError>
where In: Signal + Debug, InError: Signal + Debug,

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<In, InError> ObserverInput for PrintObserver<In, InError>
where In: Signal + Debug, InError: Signal + Debug,

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type In = In

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type InError = InError

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impl<In, InError> RxObserver for PrintObserver<In, InError>
where In: Signal + Debug, InError: Signal + Debug,

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fn next(&mut self, next: <PrintObserver<In, InError> as ObserverInput>::In)

Signals the next value.
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fn error( &mut self, error: <PrintObserver<In, InError> as ObserverInput>::InError, )

Signals an error of upstream, no more next or complete calls are expected after this!
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fn complete(&mut self)

Signals the completion of upstream, no more next or error calls are expected after this!
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impl<In, InError> SubscriptionLike for PrintObserver<In, InError>
where In: Signal + Debug, InError: Signal + Debug,

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fn is_closed(&self) -> bool

Returns if the subscription is closed or not. A subscription can be closed by calling unsubscribe on it. Some special subscriptions made by observables that only ever emit values during subscribe, will produce subscriptions that are created closed. Read more
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fn unsubscribe(&mut self)

Releases all resources associated with this subscription, and marks it as closed. Read more
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impl<In, InError> TeardownCollection for PrintObserver<In, InError>
where In: Signal + Debug, InError: Signal + Debug,

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fn add_teardown(&mut self, teardown: Teardown)

Add additional teardowns to execute on unsubscribe. If the subscription is already closed, the added teardown is immediately executed!
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impl<In, InError> WithPrimaryCategory for PrintObserver<In, InError>
where In: Signal + Debug, InError: Signal + Debug,

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type PrimaryCategory = PrimaryCategoryObserver

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impl<In, InError> ObserverUpgradesToSelf for PrintObserver<In, InError>
where In: Signal + Debug, InError: Signal + Debug,

Auto Trait Implementations§

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impl<In, InError> Freeze for PrintObserver<In, InError>

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impl<In, InError = Infallible> !RefUnwindSafe for PrintObserver<In, InError>

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impl<In, InError> Send for PrintObserver<In, InError>

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impl<In, InError> Sync for PrintObserver<In, InError>

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impl<In, InError> Unpin for PrintObserver<In, InError>

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impl<In, InError = Infallible> !UnwindSafe for PrintObserver<In, InError>

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> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Converts Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>, which can then be downcast into Box<dyn ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Converts Rc<Trait> (where Trait: Downcast) to Rc<Any>, which can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Converts &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Converts &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSend for T
where T: Any + Send,

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fn into_any_send(self: Box<T>) -> Box<dyn Any + Send>

Converts Box<Trait> (where Trait: DowncastSend) to Box<dyn Any + Send>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.
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impl<S> EraseSubscriptionExtension for S
where S: SubscriptionWithTeardown + Send + Sync + 'static,

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fn erase(self) -> ErasedSubscription

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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> FromWorld for T
where T: Default,

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fn from_world(_world: &mut World) -> T

Creates Self using default().

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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> IntoResult<T> for T

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fn into_result(self) -> Result<T, RunSystemError>

Converts this type into the system output type.
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impl<T> ObserverPushObserverNotificationExtention for T
where T: RxObserver,

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fn push( &mut self, notification: impl Into<ObserverNotification<<T as ObserverInput>::In, <T as ObserverInput>::InError>>, )

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impl<T> ObserverPushObserverTerminalNotificationExtention for T
where T: RxObserver,

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fn push( &mut self, notification: impl Into<ObserverTerminalNotification<<T as ObserverInput>::InError>>, )

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impl<T> SubscriberPushNotificationExtention for T
where T: Subscriber,

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fn push( &mut self, notification: impl Into<SubscriberNotification<<T as ObserverInput>::In, <T as ObserverInput>::InError>>, )

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impl<Subscription> SubscriptionLikeExtensionIntoShared for Subscription
where Subscription: 'static + SubscriptionWithTeardown + Send + Sync,

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fn into_shared(self) -> SharedSubscription

Wrap this subscription into a SharedSubscription, erasing it and allowing you to freely clone it, to unsubscribe it from multiple places.
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impl<T> SubscriptionLikePushNotificationExtention for T
where T: SubscriptionLike + ?Sized,

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fn push(&mut self, notification: impl Into<SubscriptionNotification>)

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impl<S> TeardownCollectionExtension for S
where S: TeardownCollection,

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fn add<T>(&mut self, teardown: T)
where T: Into<Teardown>,

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fn add_fn<F>(&mut self, f: F)
where F: 'static + FnOnce() + Send + Sync, Self: Sized,

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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.
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impl<T> UpgradeableObserver for T
where T: Subscriber + ObserverUpgradesToSelf,

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type Upgraded = T

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fn upgrade(self) -> <T as UpgradeableObserver>::Upgraded

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impl<T> ConditionalSend for T
where T: Send,

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impl<T> Signal for T
where T: 'static + Send + Sync,

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impl<T> Subscriber for T
where T: RxObserver + ObserverUpgradesToSelf + SubscriptionWithTeardown + Send + Sync,

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impl<T> SubscriptionWithTeardown for T
where T: SubscriptionLike + TeardownCollection,