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73 lines
1.2 KiB
Go
73 lines
1.2 KiB
Go
package statusz
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import (
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"encoding/json"
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"fmt"
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"git.noahlan.cn/noahlan/ntool-biz/core/nstatus"
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"reflect"
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"testing"
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"unsafe"
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)
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type Dat struct {
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Nickname string `json:"nickname"`
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}
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func TestA(t *testing.T) {
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type A struct {
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Code int64 `json:"code"` // 8
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Msg string `json:"msg"` // 16
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Data any `json:"data"`
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}
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type Response struct {
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A
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Data Dat
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}
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r := new(Response)
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r.Code = 123
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r.Msg = "222"
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r.Data = Dat{Nickname: "2333"}
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marshal, err := json.Marshal(r)
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if err != nil {
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return
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}
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fmt.Println(string(marshal))
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fmt.Println(r)
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fmt.Printf("r:%p code:%p data:%p\n", r, &r.Code, &r.Data)
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a := (*nstatus.Result)(unsafe.Pointer(r))
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trans(r)
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fmt.Println(a)
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fmt.Printf("a:%p code:%p data:%p\n", a, &a.Code, &a.Data)
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}
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func trans(resp any) {
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fmt.Println()
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type ApiResult struct {
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Code int64 `json:"code"` // 8
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Msg string `json:"msg"` // 16
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Data any `json:"data"`
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}
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//ptr :=
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//u := (*[2]uintptr)(unsafe.Pointer(&resp))[1]
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u := (*ApiResult)(reflect.ValueOf(resp).UnsafePointer())
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dataPtr := unsafe.Add(reflect.ValueOf(resp).UnsafePointer(), 40)
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fmt.Println(dataPtr)
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u.Data = unsafe.Alignof(dataPtr)
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fmt.Println(u)
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fmt.Printf("u:%p code:%p data:%p\n", u, &u.Code, &u.Data)
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fmt.Println()
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}
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