surrealpatch/util/fncs/either.go
2018-03-18 19:03:14 +00:00

51 lines
1.1 KiB
Go

// Copyright © 2016 Abcum Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package fncs
import (
"context"
)
func either(ctx context.Context, args ...interface{}) (interface{}, error) {
for _, a := range args {
switch v := a.(type) {
case nil:
continue
default:
return v, nil
case string:
if v != "" {
return v, nil
}
case int64:
if v != 0 {
return v, nil
}
case float64:
if v != 0 {
return v, nil
}
case []interface{}:
if len(v) != 0 {
return v, nil
}
case map[string]interface{}:
if len(v) != 0 {
return v, nil
}
}
}
return nil, nil
}