Trait jmespath::functions::Function

pub trait Function: Sync {
    fn evaluate(
        &self, 
        args: &[Rcvar], 
        ctx: &mut Context<'_>
    ) -> Result<Rcvar, JmespathError>;
}

Represents a JMESPath function.

Required methods

fn evaluate(
    &self,
    args: &[Rcvar],
    ctx: &mut Context<'_>
) -> Result<Rcvar, JmespathError>

Evaluates the function against an in-memory variable.

Implementors

impl Function for AbsFn

impl Function for AvgFn

impl Function for CeilFn

impl Function for ContainsFn

impl Function for CustomFunction

impl Function for EndsWithFn

impl Function for FloorFn

impl Function for JoinFn

impl Function for KeysFn

impl Function for LengthFn

impl Function for MapFn

impl Function for MaxByFn

impl Function for MaxFn

impl Function for MergeFn

impl Function for MinByFn

impl Function for MinFn

impl Function for NotNullFn

impl Function for ReverseFn

impl Function for SortByFn

impl Function for SortFn

impl Function for StartsWithFn

impl Function for SumFn

impl Function for ToArrayFn

impl Function for ToNumberFn

impl Function for ToStringFn

impl Function for TypeFn

impl Function for ValuesFn

impl<F> Function for F where
    F: Sync + Fn(&[Rcvar], &mut Context<'_>) -> Result<Rcvar, JmespathError>, 

Normal closures can be used as functions.

It is up to the function to validate the provided arguments. If you wish to utilize Signatures or more complex argument validation, it is recommended to use CustomFunction.