Enum OptionError 

pub enum OptionError {
    TypeMismatch {
        expected: String,
        got: String,
    },
    OutOfRange {
        value: String,
        min: String,
        max: String,
    },
    InvalidChoice {
        value: String,
        allowed: Vec<String>,
    },
    InvalidUrl {
        url: String,
        reason: String,
    },
    InvalidPath {
        path: String,
        reason: String,
    },
    PatternMismatch {
        value: String,
        pattern: String,
    },
    DependencyConflict {
        option: String,
        conflicts_with: String,
    },
    MissingDependency {
        option: String,
        requires: String,
    },
}

Error type for option validation failures.

Variants

TypeMismatch

Fields

expected: String

got: String

OutOfRange

Fields

value: String

min: String

max: String

InvalidChoice

Fields

value: String

allowed: Vec<String>

InvalidUrl

Fields

url: String

reason: String

InvalidPath

Fields

path: String

reason: String

PatternMismatch

Fields

value: String

pattern: String

DependencyConflict

Fields

option: String

conflicts_with: String

MissingDependency

Fields

option: String

requires: String

Trait Implementations

impl Clone for OptionError

fn clone(&self) -> OptionError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptionError

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

Formats the value using the given formatter.

impl Display for OptionError

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

Formats the value using the given formatter.

impl Error for OptionError

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.