pub struct PrecompileWitness { /* private fields */ }Expand description
A hydrated witness for one or more ordered deferred precompile roots.
Execution constructs singleton witnesses. Self::merge combines only singleton inputs and
retains their roots in input order, including duplicates.
A witness may contain private execution data and a large hydrated DAG. Treat it as sensitive prover input, and prefer borrowing it during proving instead of cloning it.
Implementations§
Source§impl PrecompileWitness
impl PrecompileWitness
Sourcepub fn new(state: DeferredState) -> Result<Self, PrecompileWitnessError>
pub fn new(state: DeferredState) -> Result<Self, PrecompileWitnessError>
Creates a singleton witness from a hydrated, non-empty deferred execution state.
This is the supported low-level constructor for callers that already own a
DeferredState. It retains the state’s current root as the witness’s sole ordered root
and rejects TRUE_DIGEST, which represents an execution with no deferred statements.
Sourcepub fn roots(&self) -> &[Digest] ⓘ
pub fn roots(&self) -> &[Digest] ⓘ
Returns the ordered non-TRUE execution roots used as precompile-proof metadata.
Singleton witnesses contain one root. Merged witnesses preserve input order and duplicate occurrences because both are significant to the aggregate precompile statement.
Sourcepub fn state(&self) -> &DeferredState
pub fn state(&self) -> &DeferredState
Returns the hydrated deferred state consumed by precompile proving.
The state may contain private execution data and can be large, so callers should prefer this borrowed access over cloning the witness.
Sourcepub fn merge(witnesses: Vec<Self>) -> Result<Self, PrecompileWitnessError>
pub fn merge(witnesses: Vec<Self>) -> Result<Self, PrecompileWitnessError>
Merges ordered singleton witnesses into one aggregate witness.
All inputs are checked for singleton shape before any deferred state is consumed. Singleton
eligibility means roots.len() == 1; execution provenance is not encoded or verified.
Witnesses retaining multiple roots are rejected, so roots cannot be regrouped or merged
recursively. The complete merged state is bounded by super::MAX_DEFERRED_ELEMENTS.
Trait Implementations§
Source§impl Clone for PrecompileWitness
impl Clone for PrecompileWitness
Source§fn clone(&self) -> PrecompileWitness
fn clone(&self) -> PrecompileWitness
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreAuto Trait Implementations§
impl !RefUnwindSafe for PrecompileWitness
impl !UnwindSafe for PrecompileWitness
impl Freeze for PrecompileWitness
impl Send for PrecompileWitness
impl Sync for PrecompileWitness
impl Unpin for PrecompileWitness
impl UnsafeUnpin for PrecompileWitness
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