SingletonFactory

Struct SingletonFactory 

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pub struct SingletonFactory { /* private fields */ }
Expand description

Singleton factory - stores a single pre-created instance

Optimization: Stores type-erased Arc<dyn Any> directly to avoid clone+cast on every resolution.

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impl SingletonFactory

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pub fn new<T: Injectable>(instance: T) -> Self

Create from an existing instance

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pub fn from_arc<T: Injectable>(instance: Arc<T>) -> Self

Create from an Arc

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pub fn resolve(&self) -> Arc<dyn Any + Send + Sync>

Resolve the instance (just clones the Arc, no cast needed)

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impl Factory for SingletonFactory

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fn resolve(&self) -> Arc<dyn Any + Send + Sync>

Resolve the service, creating it if necessary
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fn is_transient(&self) -> bool

Check if this factory produces a new instance each time

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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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn type_id_of() -> TypeId
where Self: Sized,

Returns the TypeId of this type (for internal use)
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fn type_name_of() -> &'static str
where Self: Sized,

Returns the type name for debugging
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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>

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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, 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> WithSubscriber for T

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

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impl<R, D> DepsPresent<D> for R

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impl<T> Provider for T
where T: Injectable,

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impl<R, D> VerifyDeps<D> for R