fix: stashed typo fixes for v0.12 (#1398)

Signed-off-by: oliveredget <[email protected]>
Signed-off-by: dashangcun <[email protected]>
Signed-off-by: zhuhaicity <[email protected]>
Signed-off-by: hidewrong <[email protected]>
Co-authored-by: oliveredget <[email protected]>
Co-authored-by: dashangcun <[email protected]>
Co-authored-by: ZhuHaiCheng <[email protected]>
Co-authored-by: hidewrong <[email protected]>
Co-authored-by: VolodymyrBg <[email protected]>

Author: 6 people

constraint/solver/hint_registry.go

@@ -2,10 +2,11 @@ package solver
 
 import (
 	"fmt"
-	"github.com/consensys/gnark/internal/hints"
+	"maps"
 	"math/big"
 	"sync"
 
+	"github.com/consensys/gnark/internal/hints"
 	"github.com/consensys/gnark/logger"
 )
 
@@ -60,18 +61,10 @@ func GetRegisteredHints() []Hint {
 	return ret
 }
 
-func cloneMap[K comparable, V any](src map[K]V) map[K]V {
-	res := make(map[K]V, len(registry))
-	for k, v := range src {
-		res[k] = v
-	}
-	return res
-}
-
 func cloneHintRegistry() map[HintID]Hint {
 	registryM.Lock()
 	defer registryM.Unlock()
-	return cloneMap(registry)
+	return maps.Clone(registry)
 }
 
 // InvZeroHint computes the value 1/a for the single input a. If a == 0, returns 0.

examples/rollup/circuit.go

@@ -14,8 +14,8 @@ import (
 
 const (
 	nbAccounts       = 16 // 16 accounts so we know that the proof length is 5
-	depth            = 5  // size fo the inclusion proofs
-	BatchSizeCircuit = 1  // nbTranfers to batch in a proof
+	depth            = 5  // size of the inclusion proofs
+	BatchSizeCircuit = 1  // nbTransfers to batch in a proof
 )
 
 // Circuit "toy" rollup circuit where an operator can generate a proof that he processed

examples/rollup/operator.go

@@ -230,7 +230,7 @@ func (o *Operator) updateState(t Transfer, numTransfer int) error {
 	if err != nil {
 		return err
 	}
-	merkleRootAfer, proofInclusionSenderAfter, _, err := merkletree.BuildReaderProof(&buf, o.h, segmentSize, posSender)
+	merkleRootAfter, proofInclusionSenderAfter, _, err := merkletree.BuildReaderProof(&buf, o.h, segmentSize, posSender)
 	if err != nil {
 		return err
 	}
@@ -247,9 +247,9 @@ func (o *Operator) updateState(t Transfer, numTransfer int) error {
 	}
 	// merkleProofHelperReceiverAfter := merkle.GenerateProofHelper(proofInclusionReceiverAfter, posReceiver, numLeaves)
 
-	o.witnesses.RootHashesAfter[numTransfer] = merkleRootAfer
-	o.witnesses.MerkleProofReceiverAfter[numTransfer].RootHash = merkleRootAfer
-	o.witnesses.MerkleProofSenderAfter[numTransfer].RootHash = merkleRootAfer
+	o.witnesses.RootHashesAfter[numTransfer] = merkleRootAfter
+	o.witnesses.MerkleProofReceiverAfter[numTransfer].RootHash = merkleRootAfter
+	o.witnesses.MerkleProofSenderAfter[numTransfer].RootHash = merkleRootAfter
 
 	for i := 0; i < len(proofInclusionSenderAfter); i++ {
 		o.witnesses.MerkleProofReceiverAfter[numTransfer].Path[i] = proofInclusionReceiverAfter[i]

frontend/schema/tags.go

@@ -96,10 +96,8 @@ type tagOptions string
 // parseTag splits a struct field's json tag into its name and
 // comma-separated options.
 func parseTag(tag string) (string, tagOptions) {
-	if idx := strings.Index(tag, ","); idx != -1 {
-		return tag[:idx], tagOptions(tag[idx+1:])
-	}
-	return tag, tagOptions("")
+	name, remainder, _ := strings.Cut(tag, ",")
+	return name, tagOptions(remainder)
 }
 
 // contains reports whether a comma-separated list of options

std/algebra/emulated/sw_bn254/pairing.go

@@ -829,7 +829,7 @@ func (pr Pairing) millerLoopAndFinalExpResult(P *G1Affine, Q *G2Affine, previous
 }
 
 // IsMillerLoopAndFinalExpOne computes the Miller loop between P and Q,
-// multiplies it in 𝔽p¹² by previous and and returns a boolean indicating if
+// multiplies it in 𝔽p¹² by previous and returns a boolean indicating if
 // the result lies in the same equivalence class as the reduced pairing
 // purported to be 1. This check replaces the final exponentiation step
 // in-circuit and follows Section 4 of [On Proving Pairings] paper by A.

std/polynomial/polynomial.go

@@ -101,17 +101,13 @@ func negFactorial(n int) int {
 // computeDeltaAtNaive brute forces the computation of the δᵢ(at)
 func computeDeltaAtNaive(api frontend.API, at frontend.Variable, valuesLen int) []frontend.Variable {
 	deltaAt := make([]frontend.Variable, valuesLen)
-	atMinus := make([]frontend.Variable, valuesLen) //TODO: No need for this array and the following loop
-	for i := range atMinus {
-		atMinus[i] = api.Sub(at, i)
-	}
 	factInv := api.Inverse(negFactorial(valuesLen - 1))
 
 	for i := range deltaAt {
 		deltaAt[i] = factInv
-		for j := range atMinus {
+		for j := 0; j < valuesLen; j++ {
 			if i != j {
-				deltaAt[i] = api.Mul(deltaAt[i], atMinus[j])
+				deltaAt[i] = api.Mul(deltaAt[i], api.Sub(at, j))
 			}
 		}