Enum DateError 

#[non_exhaustive]
pub enum DateError {
    Range {
        field: &'static str,
        value: i32,
        min: i32,
        max: i32,
    },
    UnknownEra,
    UnknownMonthCode(MonthCode),
}

Error type for date creation via Date::try_new_from_codes.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Range

A field is out of range for its domain.

Fields

field: &'static str

The field that is out of range, such as “year”

value: i32

The actual value

min: i32

The minimum value (inclusive). This might not be tight.

max: i32

The maximum value (inclusive). This might not be tight.

UnknownEra

The era code is invalid for the calendar.

UnknownMonthCode(MonthCode)

The month code is invalid for the calendar or year.

Examples

use icu::calendar::cal::Hebrew;
use icu::calendar::types::MonthCode;
use icu::calendar::Date;
use icu::calendar::DateError;
use tinystr::tinystr;

Date::try_new_from_codes(
    None,
    5784,
    MonthCode::new_leap(5).unwrap(),
    1,
    Hebrew,
)
.expect("5784 is a leap year");

let err = Date::try_new_from_codes(
    None,
    5785,
    MonthCode::new_leap(5).unwrap(),
    1,
    Hebrew,
)
.expect_err("5785 is a common year");

assert!(matches!(err, DateError::UnknownMonthCode(_)));

Trait Implementations

impl Clone for DateError

fn clone(&self) -> DateError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DateError

impl Debug for DateError

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

Formats the value using the given formatter.

impl Display for DateError

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

Formats the value using the given formatter.

impl Error for DateError

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 From<RangeError> for DateError

fn from(value: RangeError) -> Self

Converts to this type from the input type.

impl From<UnknownEraError> for DateError

fn from(_value: UnknownEraError) -> Self

Converts to this type from the input type.

impl PartialEq for DateError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DateError