Struct cushy::value::WhenValidation

pub struct WhenValidation<'a> { /* private fields */ }

A builder for validations that only run when a precondition is met.

Implementations

impl WhenValidation<'_>

pub fn validate<T, E, Valid>( &self, dynamic: &Dynamic<T>, check: Valid ) -> Dynamic<Validation>

where T: Send + 'static, Valid: for<'a> FnMut(&'a T) -> Result<(), E> + Send + 'static, E: Display,

Validates dynamic’s contents using check, returning a dynamic containing the validation status.

The validation is linked with self such that checking self’s validation status will include this validation.

Each change to dynamic is validated, but the result of the validation will be ignored if the required prerequisite isn’t met.

pub fn validate_result<T, E>( &self, result: impl IntoDynamic<Result<T, E>> ) -> Dynamic<Validation>

where T: Send + 'static, E: Display + Send + 'static,

Returns a dynamic validation status that is created by transforming the Err variant of result using Display.

The validation is linked with self such that checking self’s validation status will include this validation.