Enum CompactionTriggerMode 

pub enum CompactionTriggerMode {
    Threshold,
    Overflow,
}

压缩触发模式 — 决定何时启动自动压缩。

两种模式对应不同的产品哲学：

• Threshold: 主动式 — 接近上限时提前压缩，避免 overflow（oh-my-pi, claude-code）
• Overflow: 被动式 — 仅在实际溢出时才压缩，最大化上下文利用率（opencode）

Variants

Threshold

达到阈值时主动压缩。

在 token 用量超过阈值（百分比或固定值）时触发， 留出足够空间完成当前对话而不 overflow。 这是 oh-my-pi 和 claude-code 的做法。

Overflow

仅在 context overflow 时被动压缩。

不提前触发，等到 LLM 返回 prompt-too-long 错误时才压缩。 最大化上下文利用率，但用户可能感知到短暂中断。 这是 opencode 的做法。

Trait Implementations

impl Clone for CompactionTriggerMode

fn clone(&self) -> CompactionTriggerMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CompactionTriggerMode

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

Formats the value using the given formatter.

impl Default for CompactionTriggerMode

fn default() -> CompactionTriggerMode

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CompactionTriggerMode

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for CompactionTriggerMode

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 CompactionTriggerMode

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

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 CompactionTriggerMode

impl Eq for CompactionTriggerMode

impl StructuralPartialEq for CompactionTriggerMode