feat: 新增 reflects 包,包含反射相关辅助函数

This commit is contained in:
kercylan98 2023-08-08 13:35:21 +08:00
parent 822ffc7041
commit 340b00eb76
1 changed files with 42 additions and 0 deletions

42
utils/reflects/struct.go Normal file
View File

@ -0,0 +1,42 @@
package reflects
import (
"fmt"
"reflect"
"unsafe"
)
// DeepCopy 深拷贝
func DeepCopy[T any](src T) T {
vof := reflect.Indirect(reflect.ValueOf(src))
tof := vof.Type()
fmt.Println(tof)
return src
}
// GetPtrUnExportFiled 获取指针类型的未导出字段
func GetPtrUnExportFiled(s reflect.Value, filedIndex int) reflect.Value {
v := s.Elem().Field(filedIndex)
return reflect.NewAt(v.Type(), unsafe.Pointer(v.UnsafeAddr())).Elem()
}
// SetPtrUnExportFiled 设置指针类型的未导出字段
func SetPtrUnExportFiled(s reflect.Value, filedIndex int, val reflect.Value) {
v := GetPtrUnExportFiled(s, filedIndex)
v.Set(val)
}
// Copy 拷贝
func Copy(s reflect.Value) reflect.Value {
return reflect.NewAt(s.Type(), unsafe.Pointer(s.UnsafeAddr())).Elem()
}
// GetPointer 获取指针
func GetPointer[T any](src T) reflect.Value {
s := reflect.TypeOf(src)
if s.Kind() == reflect.Pointer {
return reflect.ValueOf(src)
}
return reflect.ValueOf(&src)
}