Trait argh::DynamicSubCommand

pub trait DynamicSubCommand: Sized {
    fn commands() -> &'static [&'static CommandInfo];
    fn try_redact_arg_values(
        command_name: &[&str],
        args: &[&str]
    ) -> Option<Result<Vec<String>, EarlyExit>>;
    fn try_from_args(
        command_name: &[&str],
        args: &[&str]
    ) -> Option<Result<Self, EarlyExit>>;
}

Trait implemented by values returned from a dynamic subcommand handler.

Required Methods

fn commands() -> &'static [&'static CommandInfo]

Info about supported subcommands.

fn try_redact_arg_values(
    command_name: &[&str],
    args: &[&str]
) -> Option<Result<Vec<String>, EarlyExit>>

Perform the function of FromArgs::redact_arg_values for this dynamic command.

The full list of subcommands, ending with the subcommand that should be dynamically recognized, is passed in command_name. If the command passed is not recognized, this function should return None. Otherwise it should return Some, and the value within the Some has the same semantics as the return of FromArgs::redact_arg_values.

fn try_from_args(
    command_name: &[&str],
    args: &[&str]
) -> Option<Result<Self, EarlyExit>>

Perform the function of FromArgs::from_args for this dynamic command.

The full list of subcommands, ending with the subcommand that should be dynamically recognized, is passed in command_name. If the command passed is not recognized, this function should return None. Otherwise it should return Some, and the value within the Some has the same semantics as the return of FromArgs::from_args.

Implementors