Enum DateExpr 

pub enum DateExpr {
    Absolute {
        year: Option<i32>,
        month: u32,
        day: u32,
    },
    Relative {
        unit: DateUnit,
        amount: i32,
    },
    Weekday {
        day: DayOfWeek,
        which: WeekdayOccurrence,
    },
    PeriodEnd {
        period: DatePeriod,
        which: PeriodOccurrence,
    },
    PeriodStart {
        period: DatePeriod,
        which: PeriodOccurrence,
    },
}

A date as the user said it, for code to evaluate.

Variants

Absolute

A calendar date; without a year, the argument’s direction picks it.

Fields

year: Option<i32>

The year, when the user said one.

month: u32

Month, 1 to 12.

day: u32

Day of the month.

Relative

Some units from today: «domani» is one day, «tra due settimane» two weeks.

Fields

unit: DateUnit

The unit counted.

amount: i32

How many, negative for the past.

Weekday

A day of the week.

Fields

day: DayOfWeek

Which day.

which: WeekdayOccurrence

Which occurrence of it.

PeriodEnd

The last day of a period: «fine mese» is the end of this month.

Fields

period: DatePeriod

The period.

which: PeriodOccurrence

Which one.

PeriodStart

The first day of a period.

Fields

period: DatePeriod

The period.

which: PeriodOccurrence

Which one.

Implementations

impl DateExpr

pub fn evaluate( &self, today: NaiveDate, direction: DateDirection, ) -> Result<NaiveDate, DateError>

The date this expression names on today.

Errors

DateError for a day that does not exist, such as the 31st of April.

Trait Implementations

impl Clone for DateExpr

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DateExpr

impl Debug for DateExpr

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DateExpr

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for DateExpr

impl JsonSchema for DateExpr

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for DateExpr

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for DateExpr

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DateExpr