Struct ValidTimeRange 

pub struct ValidTimeRange {
    pub start: Option<i64>,
    pub end: Option<i64>,
}

Represents when a fact was true in the real world (valid time).

This is a half-open interval [start, end) where:

• start is inclusive (None means unbounded past)
• end is exclusive (None means unbounded future)

Fields

start: Option<i64>

Start of validity (inclusive), None for unbounded past.

end: Option<i64>

End of validity (exclusive), None for unbounded future.

Implementations

impl ValidTimeRange

pub const fn unbounded() -> Self

Creates an unbounded time range (always valid).

pub const fn from(start: i64) -> Self

Creates a time range starting from a given timestamp.

pub const fn until(end: i64) -> Self

Creates a time range ending at a given timestamp.

pub const fn between(start: i64, end: i64) -> Self

Creates a bounded time range.

pub fn from_now() -> Self

Creates a time range starting from now.

pub fn until_now() -> Self

Creates a time range ending now.

pub const fn contains(&self, timestamp: i64) -> bool

Checks if the given timestamp falls within this range.

Uses half-open interval semantics: [start, end).

pub fn is_current(&self) -> bool

Checks if this range is currently valid.

pub const fn is_unbounded(&self) -> bool

Checks if this range is unbounded on both ends.

pub fn has_started(&self) -> bool

Checks if this range has started (start is in the past or unbounded).

pub fn has_ended(&self) -> bool

Checks if this range has ended (end is in the past).

pub fn overlap(&self, other: &Self) -> Option<Self>

Returns the overlap of this range with another, if any.

pub const fn close_at(self, end: i64) -> Self

Ends this range at the given timestamp.

Useful for “closing” an open-ended range when a fact becomes invalid.

pub fn close_now(self) -> Self

Ends this range now.

Trait Implementations

impl Clone for ValidTimeRange

fn clone(&self) -> ValidTimeRange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValidTimeRange

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

Formats the value using the given formatter.

impl Default for ValidTimeRange

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ValidTimeRange

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ValidTimeRange

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

Formats the value using the given formatter.

impl Hash for ValidTimeRange

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ValidTimeRange

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ValidTimeRange

impl Eq for ValidTimeRange

impl StructuralPartialEq for ValidTimeRange