Enum SsmRollbackMode 

pub enum SsmRollbackMode {
    Snapshot,
    Replay,
}

2026-09-25: SSM verify-rollback mode (--ssm-rollback-mode, experimental).

• Snapshot (the CLI default): verify writes per-token h/conv state intermediates, and a partial accept restores from them. The only mode with a device path.
• Replay: keeps only the pre-verify checkpoint per verify slot plus a ring sized for the verify window’s per-token GDN inputs. Capture and replay are not implemented: a serve in this mode boots, and every speculative verify entry refuses (SsmStatePool::require_verify_rollback_supported).

Variants

Snapshot

Replay

Trait Implementations

impl Clone for SsmRollbackMode

fn clone(&self) -> SsmRollbackMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SsmRollbackMode

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

Formats the value using the given formatter.

impl FromStr for SsmRollbackMode

fn from_str(s: &str) -> Result<Self, Self::Err>

2026-09-25: The parse for the --ssm-rollback-mode value; CLI validation and the serve’s publication both call it.

type Err = String

The associated error which can be returned from parsing.

impl PartialEq for SsmRollbackMode

fn eq(&self, other: &SsmRollbackMode) -> 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 Copy for SsmRollbackMode

impl Eq for SsmRollbackMode

impl StructuralPartialEq for SsmRollbackMode