move options to dedicated package

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

tracer/noop.go

@@ -2,6 +2,8 @@ package tracer
 
 import (
 	"context"
+
+	"go.unistack.org/micro/v4/options"
 )
 
 var _ Tracer = (*noopTracer)(nil)
@@ -10,7 +12,7 @@ type noopTracer struct {
 	opts Options
 }
 
-func (t *noopTracer) Start(ctx context.Context, name string, opts ...SpanOption) (context.Context, Span) {
+func (t *noopTracer) Start(ctx context.Context, name string, opts ...options.Option) (context.Context, Span) {
 	span := &noopSpan{
 		name:   name,
 		ctx:    ctx,
@@ -27,7 +29,7 @@ func (t *noopTracer) Flush(ctx context.Context) error {
 	return nil
 }
 
-func (t *noopTracer) Init(opts ...Option) error {
+func (t *noopTracer) Init(opts ...options.Option) error {
 	for _, o := range opts {
 		o(&t.opts)
 	}
@@ -47,7 +49,7 @@ type noopSpan struct {
 	statusMsg string
 }
 
-func (s *noopSpan) Finish(opts ...SpanOption) {
+func (s *noopSpan) Finish(opts ...options.Option) {
 }
 
 func (s *noopSpan) Context() context.Context {
@@ -58,7 +60,7 @@ func (s *noopSpan) Tracer() Tracer {
 	return s.tracer
 }
 
-func (s *noopSpan) AddEvent(name string, opts ...EventOption) {
+func (s *noopSpan) AddEvent(name string, opts ...options.Option) {
 }
 
 func (s *noopSpan) SetName(name string) {
@@ -87,7 +89,7 @@ func (s *noopSpan) SetStatus(st SpanStatus, msg string) {
 }
 
 // NewTracer returns new memory tracer
-func NewTracer(opts ...Option) Tracer {
+func NewTracer(opts ...options.Option) Tracer {
 	return &noopTracer{
 		opts: NewOptions(opts...),
 	}