Type.Field和Value.Field有什么区别？

Question

Following code.

func fieldsTest(target interface{}) ([]field, error) {
    s := reflect.ValueOf(target)

    s = s.Elem()

    targetType := s.Type()

    for i := 0; i < s.NumField(); i++ {
        f := s.Field(i)
        structField := targetType.Field(i)

    ...
}

If the target interface is a struct, the return value of f are the same as structField?

Answer 1

Type.Field() returns a value of type reflect.StructField, and Value.Field() returns a value of type reflect.Value. So they cannot be the same.

Type.Field() returns a value describing the field's type, regardless of any actual struct value. Value.Field() returns a reflect.Value that wraps the value of a field of a struct value.