Struct DerivedWeights 

pub struct DerivedWeights { /* private fields */ }

2026-09-25: Per-model memo of derived weight encodings, one map per Derivation.

Implementations

impl DerivedWeights

pub fn new() -> Self

pub fn get_ptr(&self, kind: Derivation, key: u64) -> Option<u64>

2026-09-25: Memo read for a single-pointer derivation, for callers that allocate and launch between the lookup and Self::insert_ptr. A pair-valued kind returns None.

pub fn insert_ptr(&self, kind: Derivation, key: u64, value: u64)

pub fn get_pair(&self, kind: Derivation, key: u64) -> Option<(u64, u64)>

pub fn insert_pair(&self, kind: Derivation, key: u64, value: (u64, u64))

pub fn get_or_build_ptr( &self, kind: Derivation, key: u64, build: impl FnOnce() -> Result<u64>, ) -> Result<u64>

2026-09-25: Look up a single-pointer derivation, building it on a miss. A failed build stores nothing.

build runs outside the lock. If two threads race on one key, both build, the first stored value is kept and returned to both, and the loser’s value is not freed.

pub fn get_or_build_pair( &self, kind: Derivation, key: u64, build: impl FnOnce() -> Result<(u64, u64)>, ) -> Result<(u64, u64)>

2026-09-25: Self::get_or_build_ptr for a pair-valued derivation.

pub fn len(&self) -> usize

2026-09-25: Total memoized entries across the four maps.

pub fn is_empty(&self) -> bool

Trait Implementations

impl Debug for DerivedWeights

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

Formats the value using the given formatter.

impl Default for DerivedWeights

fn default() -> DerivedWeights

Returns the “default value” for a type.

impl ModelResource<dyn GpuBackend> for DerivedWeights

2026-09-25: Release every derived allocation.

The keys are the source weights’ pointers, which the weight store owns and frees; only the values are freed here. Every free is attempted, and the first error is returned.

fn label(&self) -> &'static str

2026-09-25: Human name, used to attribute a failure in Teardown::release_all’s error.

fn release(&mut self, gpu: &dyn GpuBackend) -> Result<()>

2026-09-25: Release everything this owns. Must be idempotent.