chore: removing all uneeded public modifiers

- removing public modifier in  src/spartan/ppsnark.rs

- removing public modifier in  src/spartan/sumcheck/mod.rs

- removing public modifier in src/spartan/mod.rs

- removing public modifier in src/spartan/polys/masked_eq.rs

- removing public modifier in src/supernova/mod.rs

src/spartan/mod.rs

@@ -11,7 +11,7 @@ pub mod batched_ppsnark;
 pub mod direct;
 #[macro_use]
 mod macros;
-pub(crate) mod math;
+mod math;
 pub mod polys;
 pub mod ppsnark;
 pub mod snark;
@@ -38,7 +38,7 @@ fn powers<E: Engine>(s: &E::Scalar, n: usize) -> Vec<E::Scalar> {
 }
 
 /// A type that holds a witness to a polynomial evaluation instance
-pub struct PolyEvalWitness<E: Engine> {
+struct PolyEvalWitness<E: Engine> {
   p: Vec<E::Scalar>, // polynomial
 }
 
@@ -116,7 +116,7 @@ impl<E: Engine> PolyEvalWitness<E> {
 }
 
 /// A type that holds a polynomial evaluation instance
-pub struct PolyEvalInstance<E: Engine> {
+struct PolyEvalInstance<E: Engine> {
   c: Commitment<E>,  // commitment to the polynomial
   x: Vec<E::Scalar>, // evaluation point
   e: E::Scalar,      // claimed evaluation
@@ -192,7 +192,7 @@ impl<E: Engine> PolyEvalInstance<E> {
 }
 
 /// Bounds "row" variables of (A, B, C) matrices viewed as 2d multilinear polynomials
-pub fn compute_eval_table_sparse<E: Engine>(
+fn compute_eval_table_sparse<E: Engine>(
   S: &R1CSShape<E>,
   rx: &[E::Scalar],
 ) -> (Vec<E::Scalar>, Vec<E::Scalar>, Vec<E::Scalar>) {

src/spartan/polys/masked_eq.rs

@@ -62,7 +62,7 @@ impl<'a, Scalar: PrimeField> MaskedEqPolynomial<'a, Scalar> {
   /// representation.
   ///
   /// Returns a vector of Scalars, each corresponding to the polynomial evaluation at a specific point.
-  pub fn evals_from_points(r: &[Scalar], num_masked_vars: usize) -> Vec<Scalar> {
+  fn evals_from_points(r: &[Scalar], num_masked_vars: usize) -> Vec<Scalar> {
     let mut evals = EqPolynomial::evals_from_points(r);
 
     // replace the first 2^m evaluations with 0

src/spartan/ppsnark.rs

@@ -199,7 +199,7 @@ impl<E: Engine> R1CSShapeSparkRepr<E> {
   }
 
   // computes evaluation oracles
-  pub(in crate::spartan) fn evaluation_oracles(
+  fn evaluation_oracles(
     &self,
     S: &R1CSShape<E>,
     r_x: &E::Scalar,

src/spartan/sumcheck.rs

@@ -96,7 +96,7 @@ impl<E: Engine> SumcheckProof<E> {
   }
 
   #[inline]
-  pub(in crate::spartan) fn compute_eval_points_quad<F>(
+  fn compute_eval_points_quad<F>(
     poly_A: &MultilinearPolynomial<E::Scalar>,
     poly_B: &MultilinearPolynomial<E::Scalar>,
     comb_func: &F,
@@ -297,7 +297,7 @@ impl<E: Engine> SumcheckProof<E> {
   }
 
   #[inline]
-  pub(in crate::spartan) fn compute_eval_points_cubic<F>(
+  fn compute_eval_points_cubic<F>(
     poly_A: &MultilinearPolynomial<E::Scalar>,
     poly_B: &MultilinearPolynomial<E::Scalar>,
     poly_C: &MultilinearPolynomial<E::Scalar>,
@@ -341,7 +341,7 @@ impl<E: Engine> SumcheckProof<E> {
   }
 
   #[inline]
-  pub(in crate::spartan) fn compute_eval_points_cubic_with_additive_term<F>(
+  fn compute_eval_points_cubic_with_additive_term<F>(
     poly_A: &MultilinearPolynomial<E::Scalar>,
     poly_B: &MultilinearPolynomial<E::Scalar>,
     poly_C: &MultilinearPolynomial<E::Scalar>,

src/supernova/mod.rs

@@ -82,7 +82,7 @@ where
   C2: StepCircuit<E2::Scalar>,
 {
   /// The internal circuit shapes
-  pub circuit_shapes: Vec<R1CSWithArity<E1>>,
+  circuit_shapes: Vec<R1CSWithArity<E1>>,
 
   ro_consts_primary: ROConstants<E1>,
   ro_consts_circuit_primary: ROConstantsCircuit<E2>,
@@ -373,7 +373,7 @@ where
   }
 
   /// Returns all the primary R1CS Shapes
-  pub fn primary_r1cs_shapes(&self) -> Vec<&R1CSShape<E1>> {
+  fn primary_r1cs_shapes(&self) -> Vec<&R1CSShape<E1>> {
     self
       .circuit_shapes
       .iter()
@@ -1005,7 +1005,7 @@ where
 }
 
 /// Extension trait to simplify getting scalar form of initial circuit index.
-pub trait InitialProgramCounter<E1, E2, C1, C2>: NonUniformCircuit<E1, E2, C1, C2>
+trait InitialProgramCounter<E1, E2, C1, C2>: NonUniformCircuit<E1, E2, C1, C2>
 where
   E1: Engine<Base = <E2 as Engine>::Scalar>,
   E2: Engine<Base = <E1 as Engine>::Scalar>,
@@ -1078,7 +1078,7 @@ fn num_ro_inputs(num_circuits: usize, num_limbs: usize, arity: usize, is_primary
 
 pub mod error;
 pub mod snark;
-pub(crate) mod utils;
+mod utils;
 
 #[cfg(test)]
 mod test;