Trait Language 

pub trait Language: Send + Sync {
    // Required methods
    fn name(&self) -> &'static str;
    fn create_expression(
        &self,
        script: &str,
    ) -> Result<Box<dyn Expression>, LanguageError>;
    fn create_predicate(
        &self,
        script: &str,
    ) -> Result<Box<dyn Predicate>, LanguageError>;
}

A Language factory: produces Expression and Predicate objects.

Required Methods

fn name(&self) -> &'static str

fn create_expression( &self, script: &str, ) -> Result<Box<dyn Expression>, LanguageError>

fn create_predicate( &self, script: &str, ) -> Result<Box<dyn Predicate>, LanguageError>

Implementors