Trait rusteval::Function

pub trait Function: Sync {
    fn eval(&self, args: &str, f: &mut dyn FnMut(Result<'_, &dyn Debug>));
    fn function_name(&self) -> &'static str;
}

A trait that allows to interactively evaluate a function and pass its result to the given closure.

This trait gets implemented automatically when you use the Function attribute. See its documentation for more information.

Required Methods

fn eval(&self, args: &str, f: &mut dyn FnMut(Result<'_, &dyn Debug>))

Parses the args string into the expected arguments of the method, executes the method and passes the result as a Ok(&dyn Debug) to the given closure.

On error an Err(InteractiveError) is passed to the closure instead.

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

Returns the functions name.

Can be used to drive auto-completion in a CLI.

Trait Implementations

impl Collect for &'static dyn Function

Implementors