Struct ExpressionEvaluator 

pub struct ExpressionEvaluator { /* private fields */ }

Implementations

impl ExpressionEvaluator

pub fn new( functions: Arc<FunctionRegistry>, result_index: Arc<dyn ResultIndex>, ) -> ExpressionEvaluator

pub fn evaluate_expression<'life0, 'life1, 'life_self, 'async_recursion>( &'life_self self, context: &'life0 ExpressionEvaluationContext<'_>, expression: &'life1 Expression, ) -> Pin<Box<dyn Future<Output = Result<VariableValue, EvaluationError>> + Send + 'async_recursion>>

where 'life0: 'async_recursion, 'life1: 'async_recursion, 'life_self: 'async_recursion,

pub async fn evaluate_predicate( &self, context: &ExpressionEvaluationContext<'_>, expression: &Expression, ) -> Result<bool, EvaluationError>

pub async fn evaluate_projection_field( &self, context: &ExpressionEvaluationContext<'_>, expression: &Expression, ) -> Result<(String, VariableValue), EvaluationError>

pub async fn evaluate_assignment( &self, context: &ExpressionEvaluationContext<'_>, expression: &Expression, ) -> Result<(Arc<str>, VariableValue), FunctionEvaluationError>

pub async fn reduce_iterator_expression( &self, context: &ExpressionEvaluationContext<'_>, expression: &IteratorExpression, accumulator_variable: Arc<str>, ) -> Result<VariableValue, EvaluationError>