Struct ArgsError

pub struct ArgsError { /* private fields */ }

An implementation of Error which may or may not include a scope and/or usage message.

Implementations

impl ArgsError

pub fn new(scope: &str, msg: &str) -> ArgsError

Creates a new ArgsError with the provided scope and msg. If scope is an empty string (i.e. "") it will be ignored.

pub fn new_with_usage(scope: &str, msg: &str, usage: &str) -> ArgsError

Creates a new ArgsError with the provided scope, msg and usage message. If either scope or usage are an empty string (i.e. "") they will be ignored.

Trait Implementations

impl Debug for ArgsError

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

Formats the value using the given formatter.

impl Display for ArgsError

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

Formats the value using the given formatter.

impl Error for ArgsError

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.