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DynContextBuilder

Struct DynContextBuilder 

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pub struct DynContextBuilder<Ctx>(/* private fields */);
Expand description

A concrete wrapper that implements ContextBuilder via type-erased dispatch.

Allows heterogeneous chains of different concrete ContextBuilder types.

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impl<Ctx> DynContextBuilder<Ctx>

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pub fn new<T>(builder: T) -> Self
where T: ContextBuilder<Context = Ctx> + 'static, Ctx: Send,

Creates a DynContextBuilder from any ContextBuilder implementation.

The builder must have Context = Ctx.

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impl<Ctx> ContextBuilder for DynContextBuilder<Ctx>
where Ctx: Send,

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type Context = Ctx

The type of context this builder operates on.
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async fn build(&self, ctx: Self::Context) -> Result<Self::Context, EngineError>

Build/modify the context. Read more

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impl<Ctx> !RefUnwindSafe for DynContextBuilder<Ctx>

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impl<Ctx> !UnwindSafe for DynContextBuilder<Ctx>

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impl<Ctx> Freeze for DynContextBuilder<Ctx>

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impl<Ctx> Send for DynContextBuilder<Ctx>

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impl<Ctx> Sync for DynContextBuilder<Ctx>

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impl<Ctx> Unpin for DynContextBuilder<Ctx>

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impl<Ctx> UnsafeUnpin for DynContextBuilder<Ctx>

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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.