Enum UiArgError 

pub enum UiArgError {
    MissingValue {
        arg: String,
    },
    NotAbsolute {
        path: String,
    },
    SystemPath {
        path: String,
    },
    HelpRequested,
}

Errors that can occur during UI argument parsing.

Variants

MissingValue

--dir was provided without a following path argument.

Fields

arg: String

The flag that was missing a value.

NotAbsolute

--dir path is not absolute.

Fields

path: String

The non-absolute path provided.

SystemPath

--dir targets a sensitive system directory.

Fields

path: String

The system path that was blocked.

HelpRequested

--help was requested (exit code 2 in shell scripts).

Trait Implementations

impl Debug for UiArgError

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

Formats the value using the given formatter.

impl Display for UiArgError

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

Formats the value using the given formatter.

impl Error for UiArgError

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.