Struct TrimResult 

pub struct TrimResult {
    pub messages: Vec<Message>,
    pub replace: bool,
}

Output of a trim strategy: the trimmed message sequence + how the result is handled.

Comparison: materialization vs. projection

• replace: true (materialized): the result is written back to storage; the replaced old messages are no longer kept. Subsequent retrievals recompute nothing until new messages breach the budget again (the strategy input = previous result + new messages). Heavy operations such as LLM summarization should pick this semantic to avoid recomputation every turn.
• replace: false (projection): the result is only visible for this retrieval; storage is unchanged and nothing is lost — raising the budget restores all trimmed history. The cost is recomputation whenever over budget, so it suits cheap operations (e.g., window dropping).

Fields

messages: Vec<Message>

The trimmed message sequence.

replace: bool

Whether the result is materialized back into storage (semantics in the type docs).

Trait Implementations

impl Clone for TrimResult

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TrimResult

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

Formats the value using the given formatter.

impl Eq for TrimResult

impl PartialEq for TrimResult

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TrimResult