Enum ValidationError 

pub enum ValidationError {
    UnknownOption {
        command: String,
        option: String,
        suggestions: Vec<String>,
    },
    InvalidValue {
        option: String,
        value: String,
        reason: String,
    },
    OptionConflict {
        option: String,
        conflicts_with: String,
    },
    MissingRequirement {
        option: String,
        required: String,
    },
    DeprecatedOption {
        option: String,
        message: String,
    },
    MissingValue {
        option: String,
    },
    UnexpectedValue {
        option: String,
        value: String,
    },
    ProviderError {
        message: String,
    },
}

Variants

UnknownOption

Fields

command: String

option: String

suggestions: Vec<String>

InvalidValue

Fields

option: String

value: String

reason: String

OptionConflict

Fields

option: String

conflicts_with: String

MissingRequirement

Fields

option: String

required: String

DeprecatedOption

Fields

option: String

message: String

MissingValue

Fields

option: String

UnexpectedValue

Fields

option: String

value: String

ProviderError

Fields

message: String

Implementations

impl ValidationError

pub fn unknown_option( command: impl Into<String>, option: impl Into<String>, suggestions: Vec<String>, ) -> Self

Create an unknown option error with suggestions

pub fn invalid_value( option: impl Into<String>, value: impl Into<String>, reason: impl Into<String>, ) -> Self

Create an invalid value error

pub fn conflict( option: impl Into<String>, conflicts_with: impl Into<String>, ) -> Self

Create a conflict error

pub fn missing_requirement( option: impl Into<String>, required: impl Into<String>, ) -> Self

Create a missing requirement error

pub fn deprecated(option: impl Into<String>, message: impl Into<String>) -> Self

Create a deprecated option error

pub fn format_with_suggestions(&self) -> String

Get formatted error message with suggestions

Trait Implementations

impl Clone for ValidationError

fn clone(&self) -> ValidationError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValidationError

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

Formats the value using the given formatter.

impl Display for ValidationError

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

Formats the value using the given formatter.

impl Error for ValidationError

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.