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EvalContext

Struct EvalContext 

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pub struct EvalContext<'a> {
    pub slots: &'a [(&'static str, ContextValue)],
    pub logical_time: u64,
    pub depth_limit: u8,
}
Expand description

Opaque evaluation context passed through the pipeline.

In an embedded context this can be a fixed-size struct on the stack. In a std context it wraps a hash map for arbitrary key-value state.

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§slots: &'a [(&'static str, ContextValue)]

Flat key-value pairs — avoids HashMap for no_std compatibility.

§logical_time: u64

Current logical time (for temporal engines). Nanoseconds since epoch, or a monotonic counter on embedded targets.

§depth_limit: u8

Maximum recursion depth allowed for this evaluation.

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impl<'a> EvalContext<'a>

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pub fn get(&self, key: &'static str) -> Option<&ContextValue>

Auto Trait Implementations§

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impl<'a> Freeze for EvalContext<'a>

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impl<'a> RefUnwindSafe for EvalContext<'a>

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impl<'a> Send for EvalContext<'a>

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impl<'a> Sync for EvalContext<'a>

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impl<'a> Unpin for EvalContext<'a>

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impl<'a> UnsafeUnpin for EvalContext<'a>

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impl<'a> UnwindSafe for EvalContext<'a>

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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 = !

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.