bbgo: add ExchangeSession param to the subscribe method

pkg/bbgo/exit.go

@@ -14,7 +14,7 @@ type ExitMethod struct {
 	CumulatedVolumeTakeProfit *CumulatedVolumeTakeProfit `json:"cumulatedVolumeTakeProfit"`
 }
 
-func (m *ExitMethod) Subscribe() {
+func (m *ExitMethod) Subscribe(session *ExchangeSession) {
 	// TODO: pull out this implementation as a simple function to reflect.go
 	rv := reflect.ValueOf(m)
 	rt := reflect.TypeOf(m)
@@ -22,11 +22,13 @@ func (m *ExitMethod) Subscribe() {
 	rv = rv.Elem()
 	rt = rt.Elem()
 	infType := reflect.TypeOf((*types.Subscriber)(nil)).Elem()
+
+	argValues := toReflectValues(session)
 	for i := 0; i < rt.NumField(); i++ {
 		fieldType := rt.Field(i)
 		if fieldType.Type.Implements(infType) {
 			method := rv.Field(i).MethodByName("Subscribe")
-			method.Call(nil)
+			method.Call(argValues)
 		}
 	}
 }

pkg/bbgo/exit_test.go

@@ -4,5 +4,5 @@ import "testing"
 
 func TestExitMethod(t *testing.T) {
 	em := &ExitMethod{}
-	em.Subscribe()
+	em.Subscribe(&ExchangeSession{})
 }

pkg/bbgo/reflect.go

@@ -110,3 +110,11 @@ func newTypeValueInterface(typ reflect.Type) interface{} {
 	dst := reflect.New(typ)
 	return dst.Interface()
 }
+
+func toReflectValues(args ...interface{}) (values []reflect.Value) {
+	for _, arg := range args {
+		values = append(values, reflect.ValueOf(arg))
+	}
+
+	return values
+}