github.com/bytedance/mockey@v1.2.10/internal/tool/check.go (about)

     1  /*
     2   * Copyright 2022 ByteDance Inc.
     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  package tool
    18  
    19  import (
    20  	"reflect"
    21  )
    22  
    23  func CheckReturnType(fn interface{}, results ...interface{}) {
    24  	t := reflect.TypeOf(fn)
    25  	Assert(t.Kind() == reflect.Func, "Param a is not a func")
    26  	Assert(t.NumOut() == len(results), "Return Num of Func a does not match : %v.， origin ret count: %d, input param count: %d", t, t.NumOut(), len(results))
    27  	for i := 0; i < t.NumOut(); i++ {
    28  		if results[i] == nil {
    29  			continue
    30  		}
    31  		Assert(reflect.TypeOf(results[i]).ConvertibleTo(t.Out(i)), "Return value idx %d of rets %v can not convertible to %v", i, reflect.TypeOf(results[i]), t.Out(i))
    32  	}
    33  }
    34  
    35  func CheckFuncArgs(a, b reflect.Type, shiftA, shiftB int) bool {
    36  	if a.NumIn()-shiftA == b.NumIn()-shiftB {
    37  		for indexA, indexB := shiftA, shiftB; indexA < a.NumIn(); indexA, indexB = indexA+1, indexB+1 {
    38  			if a.In(indexA) != b.In(indexB) {
    39  				return false
    40  			}
    41  		}
    42  		return true
    43  	}
    44  	return false
    45  }