Struct kimchi::circuits::argument::ArgumentEnv

pub struct ArgumentEnv<F: 'static, T> { /* private fields */ }

The argument environment is used to specify how the argument’s constraints are represented when they are built. If the environment is created without ArgumentData and with F = Expr<F>, then the constraints are built as Expr expressions (e.g. for use with the prover/verifier). On the other hand, if the environment is created with ArgumentData and F = Field or F = PrimeField, then the constraints are built as expressions of real field elements and can be evaluated directly on the witness without using the prover.

Implementations

impl<F: Field, T: ExprOps<F>> ArgumentEnv<F, T>

pub fn create( witness: ArgumentWitness<F>, coeffs: Vec<F>, constants: Constants<F>, challenges: Challenges<F> ) -> Self

Initialize the environment for creating constraints of real field elements that can be evaluated directly over the witness without the prover/verifier

pub fn witness(&self, row: CurrOrNext, col: usize) -> T

Witness cell (row, col)

pub fn witness_curr(&self, col: usize) -> T

Witness cell on current row

pub fn witness_next(&self, col: usize) -> T

Witness cell on next row

pub fn witness_curr_chunk(&self, from: usize, to: usize) -> Vec<T>

Witness cells in current row in an interval [from, to)

pub fn witness_next_chunk(&self, from: usize, to: usize) -> Vec<T>

Witness cells in next row in an interval [from, to)

pub fn coeff(&self, idx: usize) -> T

Coefficient value at index idx

pub fn coeff_chunk(&self, from: usize, to: usize) -> Vec<T>

Chunk of consecutive coefficients in an interval [from, to)

pub fn constant(&self, expr: ConstantExpr<F>) -> T

Constant value (see ConstantExpr for supported constants)

pub fn endo_coefficient(&self) -> T

Helper to access endomorphism coefficient constant

pub fn mds(&self, row: usize, col: usize) -> T

Helper to access maximum distance separable matrix constant at row, col

Trait Implementations

impl<F, T> Default for ArgumentEnv<F, T>

fn default() -> Self

Initialize the environment for creating Expr constraints for use with prover/verifier