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Struct Policy

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pub struct Policy<R, S> { /* private fields */ }
Expand description

Policy engine. Represents a read-only set of rules and can evaluate Request based on those rules.

Policy engine consists of two sets:

  • static rules
  • variable rules - any rule that contains variables (“{{..}}”). Static rules are organized in a data structure with fast querying time. Variable rules are evaluated on every request.

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impl<R, S, RC> Policy<R, S>
where R: ResourceMatcher<Context = RC>, S: Substituter<Context = RC>,

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pub fn evaluate(&self, request: &Request<RC>) -> Result<Decision>

Evaluates the provided Request and produces the Decision.

If no rules match the Request - the default Decision is returned.

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impl<R: Debug, S: Debug> Debug for Policy<R, S>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<R, S> Freeze for Policy<R, S>
where R: Freeze, S: Freeze,

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impl<R, S> RefUnwindSafe for Policy<R, S>
where R: RefUnwindSafe, S: RefUnwindSafe,

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impl<R, S> Send for Policy<R, S>
where R: Send, S: Send,

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impl<R, S> Sync for Policy<R, S>
where R: Sync, S: Sync,

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impl<R, S> Unpin for Policy<R, S>
where R: Unpin, S: Unpin,

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impl<R, S> UnwindSafe for Policy<R, S>
where R: UnwindSafe, S: UnwindSafe,

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.