Use any instead of interface{} (#145)

Author: cristaloleg

algo_hs.go

@@ -30,7 +30,7 @@ func newHS(alg Algorithm, key []byte) (*HSAlg, error) {
 		hash: hash,
 		key:  key,
 		hashPool: &sync.Pool{
-			New: func() interface{} {
+			New: func() any {
 				return hmac.New(hash.New, key)
 			},
 		},

audience.go

@@ -20,7 +20,7 @@ func (a Audience) MarshalJSON() ([]byte, error) {
 
 // UnmarshalJSON implements json.Unmarshaler interface.
 func (a *Audience) UnmarshalJSON(b []byte) error {
-	var v interface{}
+	var v any
 	if err := json.Unmarshal(b, &v); err != nil {
 		return ErrAudienceInvalidFormat
 	}
@@ -29,7 +29,7 @@ func (a *Audience) UnmarshalJSON(b []byte) error {
 	case string:
 		*a = Audience{v}
 		return nil
-	case []interface{}:
+	case []any:
 		aud := make(Audience, len(v))
 		for i := range v {
 			v, ok := v[i].(string)

build.go

@@ -47,7 +47,7 @@ func NewBuilder(signer Signer, opts ...BuilderOption) *Builder {
 // Build used to create and encode JWT with a provided claims.
 // If claims param is of type []byte or string then it's treated as a marshaled JSON.
 // In other words you can pass already marshaled claims.
-func (b *Builder) Build(claims interface{}) (*Token, error) {
+func (b *Builder) Build(claims any) (*Token, error) {
 	rawClaims, err := encodeClaims(claims)
 	if err != nil {
 		return nil, err
@@ -89,7 +89,7 @@ func (b *Builder) Build(claims interface{}) (*Token, error) {
 	return t, nil
 }
 
-func encodeClaims(claims interface{}) ([]byte, error) {
+func encodeClaims(claims any) ([]byte, error) {
 	switch claims := claims.(type) {
 	case []byte:
 		return claims, nil

build_test.go

@@ -7,7 +7,7 @@ import (
 )
 
 func TestBuild(t *testing.T) {
-	f := func(signer Signer, verifier Verifier, claims interface{}) {
+	f := func(signer Signer, verifier Verifier, claims any) {
 		t.Helper()
 
 		token, err := NewBuilder(signer).Build(claims)
@@ -163,7 +163,7 @@ func TestBuildClaims(t *testing.T) {
 	s := mustSigner(NewSignerHS(HS256, key))
 	v := mustVerifier(NewVerifierHS(HS256, key))
 
-	f := func(claims interface{}, want string) {
+	f := func(claims any, want string) {
 		token, err := NewBuilder(s).Build(claims)
 		if err != nil {
 			t.Fatal(err)
@@ -208,7 +208,7 @@ func TestBuildClaims(t *testing.T) {
 }
 
 func TestBuildMalformed(t *testing.T) {
-	f := func(signer Signer, claims interface{}) {
+	f := func(signer Signer, claims any) {
 		t.Helper()
 
 		_, err := NewBuilder(signer).Build(claims)

jwt.go

@@ -56,7 +56,7 @@ func (t *Token) Claims() json.RawMessage {
 }
 
 // DecodeClaims into a given parameter.
-func (t *Token) DecodeClaims(dst interface{}) error {
+func (t *Token) DecodeClaims(dst any) error {
 	return json.Unmarshal(t.claims, dst)
 }
 

jwt_bench_test.go

@@ -193,6 +193,6 @@ func runVerifyBench(b *testing.B, builder *jwt.Builder, verifier jwt.Verifier) {
 	sink(dummy)
 }
 
-func sink(v interface{}) {
+func sink(v any) {
 	fmt.Fprint(io.Discard, v)
 }

parse.go

@@ -19,7 +19,7 @@ func Parse(raw []byte, verifier Verifier) (*Token, error) {
 }
 
 // ParseClaims decodes a token claims and verifies it's signature.
-func ParseClaims(raw []byte, verifier Verifier, claims interface{}) error {
+func ParseClaims(raw []byte, verifier Verifier, claims any) error {
 	token, err := Parse(raw, verifier)
 	if err != nil {
 		return err