Trait bellperson::util_cs::Comparable
source · [−]pub trait Comparable<Scalar: PrimeField> {
fn num_inputs(&self) -> usize;
fn num_constraints(&self) -> usize;
fn inputs(&self) -> Vec<String>;
fn aux(&self) -> Vec<String>;
fn constraints(&self) -> &[Constraint<Scalar>];
fn delta<C: Comparable<Scalar>>(
&self,
other: &C,
ignore_counts: bool
) -> Delta<Scalar>
where
Scalar: PrimeField,
{ ... }
}Required Methods
fn num_inputs(&self) -> usize
fn num_inputs(&self) -> usize
The Comparable trait allows comparison of two constraint systems which
implement the trait. The only non-trivial method, delta, has a default
implementation which supplies the desired behavior.
Use delta to compare constraint systems. If they are not identical, the
returned Delta enum contains fine-grained information about how they
differ. This can be especially useful when debugging the situation in which
a constraint system is satisfied, but the corresponding Groth16 proof does
not verify.
If ignore_counts is true, count mismatches will be ignored, and any constraint
mismatch will be returned. This is useful in pinpointing the source of a mismatch.
Example usage:
let delta = cs.delta(&cs_blank, false);
assert!(delta == Delta::Equal);