Enum Gadget 

pub enum Gadget {
    NoOp,
    App,
    EllipticCurveAddition,
    EllipticCurveScaling,
    PoseidonFullRound(usize),
    PoseidonSpongeAbsorb,
}

This enum represents the different gadgets that can be used in the circuit. The selectors are defined at setup time, can take only the values 0 or 1 and are public.

Variants

NoOp

A dummy gadget, doing nothing. Use for padding.

App

The gadget defining the app.

For now, the application is considered to be a one-line computation. However, we want to see the application as a collection of reusable gadgets.

See <https://github.com/o1-labs/proof-systems/issues/3074>

EllipticCurveAddition

EllipticCurveScaling

PoseidonFullRound(usize)

The following gadgets implement the Poseidon hash instance described in the top-level documentation. In the current setup, with crate::NUMBER_OF_COLUMNS columns, we can compute 5 full rounds per row.

We split the Poseidon gadget in 13 sub-gadgets, one for each set of 5 full rounds and one for the absorbtion. The parameter is the starting round of Poseidon. It is expected to be a multiple of five.

Note that, for now, the gadget can only be used by the verifier circuit.

PoseidonSpongeAbsorb

Absorb [PlonkSpongeConstants::SPONGE_WIDTH - 1] elements into the sponge. The elements are absorbed into the last [PlonkSpongeConstants::SPONGE_WIDTH - 1] elements of the permutation state.

The values to be absorbed depend on the state of the environment while executing this instruction.

Note that, for now, the gadget can only be used by the verifier circuit.

Trait Implementations

impl Clone for Gadget

fn clone(&self) -> Gadget

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Gadget

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

Formats the value using the given formatter.

impl EnumCount for Gadget

const COUNT: usize = 6usize

impl From<Gadget> for usize

fn from(val: Gadget) -> usize

Converts to this type from the input type.

impl From<Instruction> for Gadget

Convert an instruction into the corresponding gadget.

fn from(val: Instruction) -> Gadget

Converts to this type from the input type.

impl Hash for Gadget

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 IntoEnumIterator for Gadget

type Iterator = GadgetIter

fn iter() -> GadgetIter

impl PartialEq for Gadget

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

impl Eq for Gadget

impl StructuralPartialEq for Gadget