Struct MessageRange 

pub struct MessageRange { /* private fields */ }

Half-open range [start, end) of message offsets within a session’s history that a memory entry was derived from.

This is the typed source-provenance handle: it records the origin of the indexed content (which messages it came from), independent of when the entry happened to be indexed.

Implementations

impl MessageRange

pub fn new(start: u64, end: u64) -> Result<Self, MemoryStoreError>

Construct a half-open range [start, end).

Fails closed when start > end rather than silently normalizing — an inverted range is a provenance bug at the call site.

pub fn single(offset: u64) -> Self

A range covering a single message at offset.

pub fn start(&self) -> u64

pub fn end(&self) -> u64

pub fn len(&self) -> u64

Number of source messages covered by this range.

pub fn is_empty(&self) -> bool

pub fn overlaps(&self, other: &MessageRange) -> bool

Whether this half-open range overlaps other.

Half-open semantics: ranges that merely touch (self.end == other.start) do not overlap, and an empty range overlaps nothing.

Trait Implementations

impl Clone for MessageRange

fn clone(&self) -> MessageRange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MessageRange

impl Debug for MessageRange

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MessageRange

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for MessageRange

impl PartialEq for MessageRange

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

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 MessageRange