Struct Args 

pub struct Args { /* private fields */ }

A builder for type-safe command arguments.

Implementations

impl Args

pub fn new() -> Self

Creates a new empty args builder.

pub fn flag(self, short: &'static str, long: &'static str) -> Self

Adds a flag argument.

pub fn optional_flag(self, short: &'static str, long: &'static str) -> Self

Adds an optional flag argument.

pub fn option(self, short: &'static str, long: &'static str) -> Self

Adds an option argument (requires value).

pub fn optional_option(self, short: &'static str, long: &'static str) -> Self

Adds an optional option argument.

pub fn positional(self) -> Self

Adds a positional argument.

pub fn optional_positional(self) -> Self

Adds an optional positional argument.

pub fn value<V: AsRef<OsStr>>(self, value: V) -> Result<Self, String>

Sets the value for the last added argument that requires a value.

Sets the value for the last added argument that requires a value.

Errors

Returns an error if no argument expects a value.

pub fn build(self) -> Vec<OsString>

Builds the argument list as a vector of OsString.

Note: This consumes self. Use to_vec() for non-consuming access.

pub fn validate(&self) -> Result<(), String>

Validates that all required arguments are provided.

Errors

Returns an error if any required argument is missing.

Trait Implementations

impl Debug for Args

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

Formats the value using the given formatter.

impl Default for Args

fn default() -> Args

Returns the “default value” for a type.