Struct ConversationSnapshot 

#[non_exhaustive]
pub struct ConversationSnapshot {
    pub version: u32,
    pub messages: Vec<Message>,
    pub pinned: Vec<bool>,
}

Persistable image of a conversation’s logical state.

Carries only the data needed to rebuild a Conversation’s history: the message vector and the parallel pinned mask. Runtime state (model, tools, middlewares, per-turn Usage / RunId) is deliberately excluded — the model is re-supplied at resume time and telemetry is the caller’s concern.

Versioned via version so the on-disk shape can evolve without breaking older payloads. Today only version == 1 is accepted; deserializing any other value fails with an explicit error.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

version: u32

Wire-format version. Set by ConversationSnapshot::new to ConversationSnapshot::VERSION; deserializing any other value rejects the payload at parse time so callers fail loudly on a forward-incompatible file.

messages: Vec<Message>

History messages, in chronological order.

pinned: Vec<bool>

Parallel pin mask — pinned[i] is the survivor flag for messages[i]. Same length as messages; the #[serde(try_from)] arm rejects payloads where the two vectors disagree, so post-deserialize the invariant holds.

Implementations

impl ConversationSnapshot

pub const VERSION: u32 = 1

Current wire-format version. Bumped when the on-disk shape changes in a backward-incompatible way; older payloads then fail to deserialize until a migration step lands.

pub fn new( messages: Vec<Message>, pinned: Vec<bool>, ) -> Result<ConversationSnapshot, FromMessagesError>

Bundle messages and pinned into a snapshot tagged with the current VERSION. Returns FromMessagesError::LengthMismatch when the two vectors disagree — same invariant the deserialize path enforces, so snapshots produced via this constructor always round-trip.

Trait Implementations

impl Clone for ConversationSnapshot

fn clone(&self) -> ConversationSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConversationSnapshot

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ConversationSnapshot

fn deserialize<__D>( __deserializer: __D, ) -> Result<ConversationSnapshot, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ConversationSnapshot

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<RawConversationSnapshot> for ConversationSnapshot

type Error = String

The type returned in the event of a conversion error.

fn try_from( raw: RawConversationSnapshot, ) -> Result<ConversationSnapshot, <ConversationSnapshot as TryFrom<RawConversationSnapshot>>::Error>

Performs the conversion.

impl StructuralPartialEq for ConversationSnapshot