Enum jdn_cli::CliError

pub enum CliError {
    InvalidNumberOfArguments {
        min: usize,
        max: Option<usize>,
        given: usize,
    },
    ArgumentParseFailure(String),
    ExecutionError(String),
}

An enumeration of errors that can occur while executing a CLI command.

Variants

InvalidNumberOfArguments

Indicates an invalid number of arguments was given to the handler.

Fields of InvalidNumberOfArguments

min: usize

The minimum or only number of arguments expected.

max: Option<usize>

The maximum number of arguments expected.

given: usize

The number of arguments that was given to the handler.

ArgumentParseFailure(String)

Indicates an argument was unable to be coerced from a String. The internal attribute contains a description of the error that occurred.

ExecutionError(String)

Indicates an error occurred while executing the command. The internal attribute contains a description of the error that occurred.

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

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

The lower-level source of this error, if any.

pub fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

pub fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting