Enum Rule

pub enum Rule<Ctx: ?Sized + 'static> {
    Any(Vec<Self>),
    All(Vec<Self>),
    Not(Box<Self>),
    Leaf(Condition<Ctx>),
}

Represents a rule, which can be a condition or a logical combination of other rules.

Rules can be composed using logical operators:

• Any: At least one sub-rule must evaluate to true
• All: All sub-rules must evaluate to true
• Not: Negates the result of the contained rule
• Leaf: A single condition that evaluates to a boolean

Variants

Any(Vec<Self>)

All(Vec<Self>)

Not(Box<Self>)

Leaf(Condition<Ctx>)

Implementations

impl<Ctx: ?Sized> Rule<Ctx>

pub fn evaluate(&self, context: &Ctx) -> StdResult<bool, Box<dyn StdError>>

Evaluates a rule synchronously using the provided context.

This method evaluates the rule against the provided context and returns a boolean result indicating whether the rule matched. If the rule contains any async operations, this method will return an error.

pub async fn evaluate_async( &self, context: &Ctx, ) -> StdResult<bool, Box<dyn StdError>>

Evaluates a rule asynchronously using the provided context.

This method evaluates the rule against the provided context and returns a boolean result indicating whether the rule matched. It supports rules containing both synchronous and asynchronous operations.

Trait Implementations

impl<Ctx: ?Sized> Clone for Rule<Ctx>

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<Ctx: ?Sized> Debug for Rule<Ctx>

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

Formats the value using the given formatter.