Struct Datetime

pub struct Datetime {
    pub date: Option<Date>,
    pub time: Option<Time>,
    pub offset: Option<Offset>,
}

A parsed TOML datetime value

This structure is intended to represent the datetime primitive type that can be encoded into TOML documents. This type is a parsed version that contains all metadata internally.

Currently this type is intentionally conservative and only supports to_string as an accessor. Over time though it’s intended that it’ll grow more support!

Note that if you’re using Deserialize to deserialize a TOML document, you can use this as a placeholder for where you’re expecting a datetime to be specified.

Also note though that while this type implements Serialize and Deserialize it’s only recommended to use this type with the TOML format, otherwise encoded in other formats it may look a little odd.

Depending on how the option values are used, this struct will correspond with one of the following four datetimes from the TOML v1.0.0 spec:

date	time	offset	TOML type
Some(_)	Some(_)	Some(_)	Offset Date-Time
Some(_)	Some(_)	None	Local Date-Time
Some(_)	None	None	Local Date
None	Some(_)	None	Local Time

1. Offset Date-Time: If all the optional values are used, Datetime corresponds to an Offset Date-Time. From the TOML v1.0.0 spec:

To unambiguously represent a specific instant in time, you may use an RFC 3339 formatted date-time with offset.

odt1 = 1979-05-27T07:32:00Z
odt2 = 1979-05-27T00:32:00-07:00
odt3 = 1979-05-27T00:32:00.999999-07:00

For the sake of readability, you may replace the T delimiter between date and time with a space character (as permitted by RFC 3339 section 5.6).

odt4 = 1979-05-27 07:32:00Z

2. Local Date-Time: If date and time are given but offset is None, Datetime corresponds to a Local Date-Time. From the spec:

If you omit the offset from an RFC 3339 formatted date-time, it will represent the given date-time without any relation to an offset or timezone. It cannot be converted to an instant in time without additional information. Conversion to an instant, if required, is implementation- specific.

ldt1 = 1979-05-27T07:32:00
ldt2 = 1979-05-27T00:32:00.999999

3. Local Date: If only date is given, Datetime corresponds to a Local Date; see the docs for Date.

4. Local Time: If only time is given, Datetime corresponds to a Local Time; see the docs for Time.

Fields

date: Option<Date>

Optional date. Required for: Offset Date-Time, Local Date-Time, Local Date.

time: Option<Time>

Optional time. Required for: Offset Date-Time, Local Date-Time, Local Time.

offset: Option<Offset>

Optional offset. Required for: Offset Date-Time.

Trait Implementations

impl Clone for Datetime

fn clone(&self) -> Datetime

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Datetime

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Datetime

fn deserialize<D>(deserializer: D) -> Result<Datetime, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Datetime

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

Formats the value using the given formatter.

impl From<Datetime> for Value

fn from(val: Datetime) -> Value

Converts to this type from the input type.

impl FromStr for Datetime

type Err = DatetimeParseError

The associated error which can be returned from parsing.

fn from_str(date: &str) -> Result<Datetime, DatetimeParseError>

Parses a string s to return a value of this type.

impl PartialEq for Datetime

fn eq(&self, other: &Datetime) -> 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 Serialize for Datetime

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Datetime

impl StructuralPartialEq for Datetime