Trait DefaultFn 

pub trait DefaultFn<A, I, T>: Send + 'static {
    // Required method
    fn execute(&self, scope: &mut Scope<I>) -> Result<Option<T>>;
}

Default function.

Required Methods

fn execute(&self, scope: &mut Scope<I>) -> Result<Option<T>>

Executes the default function.

Errors

This method returns an error if the function fails to execute.

Implementors

impl<F, R, I, T> DefaultFn<ForId, I, T> for F

where F: Fn(&I) -> R + Send + 'static, R: IntoResult<Option<T>>, I: Display,

impl<F, R, I, T> DefaultFn<ForKey, I, T> for F

where F: Fn(&Key<I>) -> R + Send + 'static, R: IntoResult<Option<T>>, I: Display,

impl<F, R, I, T> DefaultFn<ForScope, I, T> for F

where F: Fn(&mut Scope<I>) -> R + Send + 'static, R: IntoResult<Option<T>>, I: Display,

impl<F, R, I, T> DefaultFn<ForValue, I, T> for F

where F: Fn() -> R + Send + 'static, R: IntoResult<Option<T>>, I: Display,