Enum CommandParseError 

pub enum CommandParseError {
    MissingCommand,
    UnknownCommand(String),
    UnknownOption {
        command: CommandName,
        option: String,
    },
    MissingRequiredArgument {
        command: CommandName,
        argument: &'static str,
    },
    MissingRequiredOptionValue {
        command: CommandName,
        option: &'static str,
    },
    TooManyArguments {
        command: CommandName,
        extra: Vec<String>,
    },
    InvalidBuilder(String),
    InvalidLanguage(String),
}

Error raised while resolving a command or mapping CLI tokens into action inputs.

Variants

MissingCommand

UnknownCommand(String)

UnknownOption

Fields

command: CommandName

option: String

MissingRequiredArgument

Fields

command: CommandName

argument: &'static str

MissingRequiredOptionValue

Fields

command: CommandName

option: &'static str

TooManyArguments

Fields

command: CommandName

extra: Vec<String>

InvalidBuilder(String)

InvalidLanguage(String)

Trait Implementations

impl Clone for CommandParseError

fn clone(&self) -> CommandParseError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CommandParseError

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

Formats the value using the given formatter.

impl Display for CommandParseError

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

Formats the value using the given formatter.

impl Error for CommandParseError

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 PartialEq for CommandParseError

fn eq(&self, other: &CommandParseError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for CommandParseError

impl StructuralPartialEq for CommandParseError