Enum CliError 

pub enum CliError {
    MissingParams,
    MissingFlag(String),
    InvalidParam(usize, String),
    Generic(String),
}

Error types that can occur during CLI command processing.

This enum represents all possible errors that can be returned by CLI commands, including missing parameters, invalid flags, and generic errors.

Variants

MissingParams

Required parameters were not provided or are invalid.

MissingFlag(String)

A required flag was not provided.

InvalidParam(usize, String)

A parameter at a specific position failed validation. Contains the position (0-indexed) and an error message describing the issue.

Generic(String)

A generic error with a custom message.

Trait Implementations

impl Debug for CliError

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

Formats the value using the given formatter.

impl Display for CliError

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

Formats the value using the given formatter.

impl Error for CliError

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

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

fn description(&self) -> &str

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

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.

impl From<Error> for CliError

fn from(err: Error) -> Self

Converts to this type from the input type.