chore(primitives): renaming nits and comments fixes

mod/primitives/pkg/constraints/basic.go

@@ -36,7 +36,7 @@ type EngineType[SelfT any] interface {
 	JSONMarshallable
 }
 
-// EmptyWithForkVersion is a constraint that requires a type to have an Empty
+// EmptyWithVersion is a constraint that requires a type to have an Empty
 // method.
 type EmptyWithVersion[SelfT any] interface {
 	Empty(uint32) SelfT
@@ -47,7 +47,7 @@ type Empty[SelfT any] interface {
 	Empty() SelfT
 }
 
-// IsNil is a constraint that requires a type to have an IsNil method.
+// Nillable is a constraint that requires a type to have an IsNil method.
 type Nillable interface {
 	IsNil() bool
 }

mod/primitives/pkg/encoding/hex/bytes.go

@@ -82,7 +82,7 @@ func DecodeFixedText(input, out []byte) error {
 	return nil
 }
 
-// MustFromHex returns the bytes represented by the given hex string.
+// MustToBytes returns the bytes represented by the given hex string.
 // It panics if the input is not a valid hex string.
 func MustToBytes(input string) []byte {
 	bz, err := ToBytes(input)
@@ -92,7 +92,7 @@ func MustToBytes(input string) []byte {
 	return bz
 }
 
-// FromHex returns the bytes represented by the given hex string.
+// ToBytes returns the bytes represented by the given hex string.
 // An error is returned if the input is not a valid hex string.
 func ToBytes(input string) ([]byte, error) {
 	s, err := NewStringStrict(input)

mod/primitives/pkg/encoding/hex/const.go

@@ -21,15 +21,15 @@
 package hex
 
 const (
-	prefix          = "0x"
-	prefixLen       = len(prefix)
-	badNibble       = ^uint64(0)
-	hexBase         = 16
-	initialCapacity = 10
-	encDecRatio     = 2
-	bytesPer64Bits  = 16 // 64/8
-	bytesPer256Bits = 64 // 256/8
-	nibbleShift     = 4
+	prefix            = "0x"
+	prefixLen         = len(prefix)
+	badNibble         = ^uint64(0)
+	hexBase           = 16
+	initialCapacity   = 10
+	encDecRatio       = 2
+	nibblesPer64Bits  = 16 // 64/4
+	nibblesPer256Bits = 64 // 256/4
+	nibbleShift       = 4
 
 	// hexadecimal conversion constants.
 	hexBaseOffset       = '0'

mod/primitives/pkg/encoding/hex/string.go

@@ -158,7 +158,7 @@ func (s String) ToBigInt() (*big.Int, error) {
 	if err != nil {
 		return nil, err
 	}
-	if len(raw) > bytesPer256Bits {
+	if len(raw) > nibblesPer256Bits {
 		return nil, ErrBig256Range
 	}
 	bigWordNibbles, err := getBigWordNibbles()

mod/primitives/pkg/encoding/hex/u64.go

@@ -54,7 +54,7 @@ func UnmarshalUint64Text(input []byte) (uint64, error) {
 	if err != nil {
 		return 0, err
 	}
-	if len(raw) > bytesPer64Bits {
+	if len(raw) > nibblesPer64Bits {
 		return 0, ErrUint64Range
 	}
 	var dec uint64