Merge pull request go-oauth2#195 from godcongdev/master

fix: github.com\go-oauth2\oauth2\v4@v4.4.0\server\server.go:243:6: no new variables on left side of :=

Author: LyricTian

server/server.go

@@ -223,15 +223,6 @@ func (s *Server) GetAuthorizeToken(ctx context.Context, req *AuthorizeRequest) (
 
 // check the client allows the authorized scope
 if fn := s.ClientScopeHandler; fn != nil {
-tgr := &oauth2.TokenGenerateRequest{
-ClientID: req.ClientID,
-UserID: req.UserID,
-RedirectURI: req.RedirectURI,
-Scope: req.Scope,
-AccessTokenExp: req.AccessTokenExp,
-Request: req.Request,
-}
-
 allowed, err := fn(tgr)
 if err != nil {
 return nil, err
@@ -240,16 +231,8 @@ func (s *Server) GetAuthorizeToken(ctx context.Context, req *AuthorizeRequest) (
 }
 }
 
-tgr = &oauth2.TokenGenerateRequest{
-ClientID: req.ClientID,
-UserID: req.UserID,
-RedirectURI: req.RedirectURI,
-Scope: req.Scope,
-AccessTokenExp: req.AccessTokenExp,
-Request: req.Request,
-CodeChallenge: req.CodeChallenge,
-CodeChallengeMethod: req.CodeChallengeMethod,
-}
+tgr.CodeChallenge = req.CodeChallenge
+tgr.CodeChallengeMethod = req.CodeChallengeMethod
 
 return s.Manager.GenerateAuthToken(ctx, req.ResponseType, tgr)
 }
@@ -390,7 +373,8 @@ func (s *Server) CheckGrantType(gt oauth2.GrantType) bool {
 }
 
 // GetAccessToken access token
-func (s *Server) GetAccessToken(ctx context.Context, gt oauth2.GrantType, tgr *oauth2.TokenGenerateRequest) (oauth2.TokenInfo, error) {
+func (s *Server) GetAccessToken(ctx context.Context, gt oauth2.GrantType, tgr *oauth2.TokenGenerateRequest) (oauth2.TokenInfo,
+error) {
 if allowed := s.CheckGrantType(gt); !allowed {
 return nil, errors.ErrUnauthorizedClient
 }