Component

Struct Component 

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pub struct Component;
Expand description

Generic extractor for any component stored in the application.

This zero-sized type can be used to extract any component that has been registered with the application builder using add_component().

§Examples

use diode::{App, Component, Extract};

let app = App::builder()
    .add_component("configuration".to_string())
    .build()
    .await?;

// During service building:
// let config = Component::extract::<String>(app_builder)?;

Trait Implementations§

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impl<T> Extract<T> for Component
where T: Clone + Send + Sync + 'static,

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fn extract(app: &AppBuilder) -> Result<T, AppError>

Extracts a value of type T from the application builder. Read more
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fn dependencies() -> Dependencies

Returns the dependencies required by this type. Read more
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impl<T> ExtractRef<T> for Component
where T: Send + Sync + 'static,

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fn extract_ref(app: &AppBuilder) -> Result<&T, AppError>

Extracts a reference to a value of type T from the application builder. Read more
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fn dependencies() -> Dependencies

Returns the dependencies required by this type. Read more

Auto Trait Implementations§

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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.