Struct clap_port_flag::Port

pub struct Port { /* private fields */ }

Easily add a --port flag to clap.

Usage

#[derive(Debug, clap::Parser)]
struct Cli {
  #[clap(flatten)]
  port: clap_port_flag::Port,
}

Implementations

impl Port

Create a TCP socket.

Panics

If a file descriptor was passed directly, we call the unsafe TcpListener::from_raw_fd() method, which may panic if a non-existent file descriptor was passed. (This only applies if the “fd” feature is enabled)

pub fn bind(&self) -> Result<TcpListener>

Create a TCP socket from the passed in port or file descriptor.

pub fn bind_or(&self, port: u16) -> Result<TcpListener>

Create a TCP socket by calling to .bind(). If it fails, create a socket on port.

Useful to create a default socket to listen to if none was passed.

Trait Implementations

impl Args for Port

fn augment_args<'b>(__clap_app: Command) -> Command

Append to Command so it can instantiate Self.

fn augment_args_for_update<'b>(__clap_app: Command) -> Command

Append to Command so it can update self.

fn group_id() -> Option<Id>

Report the ArgGroup::id for this set of arguments

impl Debug for Port

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromArgMatches for Port

fn from_arg_matches(__clap_arg_matches: &ArgMatches) -> Result<Self, Error>

Instantiate Self from ArgMatches, parsing the arguments as needed.

fn from_arg_matches_mut(
    __clap_arg_matches: &mut ArgMatches
) -> Result<Self, Error>

Instantiate Self from ArgMatches, parsing the arguments as needed.

fn update_from_arg_matches(
    &mut self,
    __clap_arg_matches: &ArgMatches
) -> Result<(), Error>

Assign values from ArgMatches to self.

fn update_from_arg_matches_mut(
    &mut self,
    __clap_arg_matches: &mut ArgMatches
) -> Result<(), Error>

Assign values from ArgMatches to self.