我正在努力实现以下目标:
用例:
- 我有三个 struct ,我需要比较其中的两个和一个.(在示例中描述为:a和b需要与full进行比较)
- 反射用于在每个字段上循环,检索字段的名称.比较a和;完整,b&;完整,将结果存储在共享 struct 中.
- 如果场等于世界,我们知道它是一个切片 struct :
示例代码:
type Foo struct {
Hello string
World []Bar
}
type Bar struct {
Fish string
}
type Result struct {
Field string
Correct_A bool
Distance_A int
Correct_B bool
Distance_B int
Result []Result
}
func compare_structs() {
var full, a, b Foo
// filling in all variables...
result := []Result{}
rfx_f := reflect.ValueOf(full)
rfx_a := reflect.ValueOf(a)
rfx_b := reflect.ValueOf(b)
type_result := rfx_f.Type()
for i := 0; i < rfx_f.NumField(); i++ {
tmp_res := Result{
Field: type_result.Field(i).Name,
}
if reflect.TypeOf(full).Field(i).Type.Kind() != reflect.Slice {
value := rfx_f.Field(i).Interface()
value_a := rfx_a.FieldByName(tmp_res.Field).Interface()
value_b := rfx_b.FieldByName(tmp_res.Field).Interface()
// functions to compare the values of this field
tmp_res.compare(value, value_a, value_b)
tmp_res.lev(value, value_a, value_b)
result = append(result, tmp_res)
} else if tmp_res.Field == "World" {
/*
I need to retrieve the first index of the Bar slice within the Foo structure.
Even though the variable is a slice, I know it will always have a length of 1 in this use-case.
When retrieved I need to loop over those fields, like what is happening in the previous if statement.
*/
}
}
}