Trait Expression 

pub trait Expression {
    // Required method
    fn evaluate(
        &self,
        context: &dyn EvaluationContext,
    ) -> Result<Box<dyn Any + Send + Sync + 'static>, Box<dyn Error + Send + Sync + 'static>>;
}

Required Methods

fn evaluate( &self, context: &dyn EvaluationContext, ) -> Result<Box<dyn Any + Send + Sync + 'static>, Box<dyn Error + Send + Sync + 'static>>

Calculate expression result with context

Arguments

• context - Context of evaluation

Returns

The value of this expression

Implementors