Enum ConstraintError 

pub enum ConstraintError {
    BelowMinimum {
        value: i64,
        min: i64,
    },
    AboveMaximum {
        value: i64,
        max: i64,
    },
    StringTooShort {
        len: usize,
        min: usize,
    },
    StringTooLong {
        len: usize,
        max: usize,
    },
    InvalidChoice {
        value: String,
        choices: Vec<String>,
    },
}

Constraint validation error.

Variants

BelowMinimum

Integer value is below minimum.

Fields

value: i64

The actual value

min: i64

The minimum allowed

AboveMaximum

Integer value is above maximum.

Fields

value: i64

The actual value

max: i64

The maximum allowed

StringTooShort

String is too short.

Fields

len: usize

Actual length

min: usize

Minimum required length

StringTooLong

String is too long.

Fields

len: usize

Actual length

max: usize

Maximum allowed length

InvalidChoice

Choice value is not in the allowed choices.

Fields

value: String

The invalid value

choices: Vec<String>

The valid choices

Trait Implementations

impl Clone for ConstraintError

fn clone(&self) -> ConstraintError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintError

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

Formats the value using the given formatter.

impl Display for ConstraintError

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

Formats the value using the given formatter.

impl Error for ConstraintError

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 ConstraintError

fn eq(&self, other: &ConstraintError) -> 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 ConstraintError

impl StructuralPartialEq for ConstraintError