github.com/aacfactory/fns@v1.2.86-0.20240310083819-80d667fc0a17/services/response.go (about)

     1  /*
     2   * Copyright 2023 Wang Min Xiang
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   * 	http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   *
    16   */
    17  
    18  package services
    19  
    20  import (
    21  	"github.com/aacfactory/errors"
    22  	"github.com/aacfactory/fns/commons/objects"
    23  )
    24  
    25  type Response interface {
    26  	objects.Object
    27  }
    28  
    29  func NewResponse(src any) Response {
    30  	if src == nil {
    31  		return objects.New(nil)
    32  	}
    33  	if _, isEmpty := src.(Empty); isEmpty {
    34  		return objects.New(nil)
    35  	}
    36  	return objects.New(src)
    37  }
    38  
    39  // ValueOfResponse
    40  // type of T must be struct value or slice, can not be ptr
    41  func ValueOfResponse[T any](response Response) (v T, err error) {
    42  	v, err = objects.Value[T](response)
    43  	if err != nil {
    44  		err = errors.Warning("fns: get value of response failed").WithCause(err)
    45  		return
    46  	}
    47  	return
    48  }