Struct OptionsError 

pub struct OptionsError {
    pub field: &'static str,
    pub message: String,
}

A rejected option: which field, and why. The message names the field in its wire spelling (ocr_scale must be a positive number, got 0); the CLI prints it through OptionsError::cli_message, which swaps in the flag.

Fields

field: &'static str

The wire name of the offending option — a ConvertOptions field.

message: String

Why it was rejected; names the field.

Implementations

impl OptionsError

pub fn cli_message(&self) -> String

The message with the field spelled as its CLI flag (--ocr-scale must be a positive number, got 0).

Trait Implementations

impl Clone for OptionsError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptionsError

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

Formats the value using the given formatter.

impl Display for OptionsError

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

Formats the value using the given formatter.

impl Eq for OptionsError

impl Error for OptionsError

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 OptionsError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for OptionsError