remove unused types JTypeMapper check & support default types. (#597)

Author: mark4z

pixiu/pkg/client/dubbo/option.go

@@ -186,24 +186,19 @@ type paramTypesOpt struct{}
 // Action for paramTypesOpt override the other param types mapping/config.
 // The val must be string(e.g. "int, object"), and will then assign to the target.(dubboTarget).Types
 func (opt *paramTypesOpt) Action(target, val interface{}) error {
-	v, ok := val.(string)
-	if !ok {
-		return errors.New("The val type must be string")
-	}
-	types := strings.Split(v, ",")
 	dubboTarget, ok := target.(*dubboTarget)
 	if !ok {
 		return errors.New("Target is not dubboTarget in target parameter")
 	}
-	for i := range types {
-		trimType := strings.TrimSpace(types[i])
-		if len(trimType) == 0 {
-			continue
-		}
-		if _, ok = constant.JTypeMapper[trimType]; !ok {
-			return errors.Errorf("Types invalid %s", trimType)
+	// empty types for func like func()
+	types := make([]string, 0)
+	if v, ok := val.(string); ok {
+		if len(v) > 0 {
+			types = strings.Split(v, ",")
+			for i := range types {
+				types[i] = strings.TrimSpace(types[i])
+			}
 		}
-		types[i] = trimType
 	}
 	dubboTarget.Types = types
 	return nil

pixiu/pkg/client/dubbo/option_test.go

@@ -84,14 +84,15 @@ func TestParamTypesOptAction(t *testing.T) {
 	assert.Equal(t, "string", target.Types[1])
 
 	err = opt.Action(target, "object,whatsoever")
-	assert.EqualError(t, err, "Types invalid whatsoever")
+	assert.Nil(t, err)
 
 	err = opt.Action("target", []string{})
-	assert.EqualError(t, err, "The val type must be string")
+	assert.EqualError(t, err, "Target is not dubboTarget in target parameter")
 	err = opt.Action(target, "object,")
 	assert.Nil(t, err)
 	assert.Equal(t, "object", target.Types[0])
-	err = opt.Action(target, "object")
+
+	err = opt.Action(target, "object ")
 	assert.Nil(t, err)
 	assert.Equal(t, "object", target.Types[0])
 }