RuleEngine

Struct RuleEngine 

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pub struct RuleEngine<'a> {
    pub knowledge: HashMap<String, String>,
    pub rules: Vec<Rule<'a>>,
}
Expand description

Defines an engine used to evaluate and execute rules.

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§knowledge: HashMap<String, String>§rules: Vec<Rule<'a>>

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impl RuleEngine<'_>

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pub fn new( knowledge: HashMap<String, String>, rules: Vec<Rule<'_>>, ) -> RuleEngine<'_>

creates a new instance of RuleEngine

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pub fn run(&mut self) -> Result<bool, RuleError>

orders rules by their priority, evaluates their conditions, and if true, executes the action.

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impl<'a> Freeze for RuleEngine<'a>

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impl<'a> !RefUnwindSafe for RuleEngine<'a>

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impl<'a> !Send for RuleEngine<'a>

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impl<'a> !Sync for RuleEngine<'a>

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impl<'a> Unpin for RuleEngine<'a>

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impl<'a> !UnwindSafe for RuleEngine<'a>

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impl<T> Any for T
where T: 'static + ?Sized,

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

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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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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.