Macro easy_repl::validator

macro_rules! validator {
    ($($type:ty),*) => { ... };
    (@replace $_old:tt $new:expr) => { ... };
}

Generate argument validator based on a list of types (used by command!).

This macro can be used to generate a closure that takes arguments as &[&str] and makes sure that the nubmer of arguments is correct and all can be parsed to appropriate types. This macro should generally not be used. Prefer to use command! which will use this macro appropriately.

Example usage:

let validator = validator!(i32, f32, String);
assert!(validator(&["10", "3.14", "hello"]).is_ok());

Note

For string arguments use String instead of &str.