Enum StateKind 

pub enum StateKind {
    Recurrent,
    PagedKv,
    PrefixSnapshot,
    RingSnapshot,
    CarryStash,
    CarryTable,
    VerifyTable,
    AcceptStash,
    HiddenCapture,
    PromptLookupIndex,
    TokenTreeMask,
    DraftTokens,
}

2026-09-30: What a state is.

Variants

Recurrent

2026-09-30: A recurrent state, one unit per sequence slot (GatedDeltaNet and Mamba2 h, their conv windows).

PagedKv

2026-09-30: One side of a paged KV cache, one unit per token.

PrefixSnapshot

2026-10-02: A prefix-cache (Marconi) snapshot of a recurrent state (of), or of the last-token hidden row, one unit per snapshot slot.

RingSnapshot

2026-10-02: The decode-rollback ring’s copy of a recurrent state (of), one unit per ring slot per sequence slot.

CarryStash

2026-10-02: The carried-state verify’s per-slot stash of a recurrent layer, one unit per verify slot (the dummy included).

CarryTable

2026-10-02: The carried-state verify’s per-layer pointer and flag tables, one unit per carry-table row.

VerifyTable

2026-10-02: A verify’s per-layer WY pointer tables, one unit per verify-table row.

AcceptStash

2026-10-02: The hidden rows of accepted drafts a verify stashes for the next propose, one unit per verify-table row.

HiddenCapture

2026-10-02: Hidden rows captured for the draft head (the prompt’s, for the drafter prefill; DFlash’s per-step capture), one unit per captured row.

PromptLookupIndex

2026-10-02: Host: a sequence’s prompt-lookup n-gram index, one entry per history token (sized by the hash table law in memory::caches).

TokenTreeMask

2026-10-02: A token tree’s attention mask, one unit per (tree node, tree node) pair of a verify slot.

DraftTokens

2026-10-02: A speculative step’s drafted tokens and their scores, one unit per draft position of a verify slot (tree nodes under a token tree).

Implementations

impl StateKind

pub fn parse(s: &str) -> Option<Self>

2026-09-30: The spelling in the circuit TOML.

pub fn name(self) -> &'static str

2026-10-02: The spelling.

pub fn spellings() -> Vec<&'static str>

2026-10-02: Every spelling, for refusals.

pub fn is_cache(self) -> bool

2026-10-02: A cache: a kind no layer node touches, sized by memory::caches from the cache inputs, never by StatePlan. It may copy another state of its block (of).

pub fn copies_a_state(self) -> bool

2026-10-02: The kinds whose unit copies a declared state (of).

pub fn is_host(self) -> bool

2026-10-02: Held in host memory rather than device memory (on a unified-memory device it still competes for the same pool, outside the util budget).

Trait Implementations

impl Clone for StateKind

fn clone(&self) -> StateKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StateKind

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

Formats the value using the given formatter.

impl Hash for StateKind

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 Ord for StateKind

fn cmp(&self, other: &StateKind) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for StateKind

fn eq(&self, other: &StateKind) -> 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 PartialOrd for StateKind

fn partial_cmp(&self, other: &StateKind) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for StateKind

impl Eq for StateKind

impl StructuralPartialEq for StateKind