From a72922386f52cb79bab4d406aeda26371a07cf2a Mon Sep 17 00:00:00 2001
From: congqixia <congqi.xia@zilliz.com>
Date: Thu, 26 Sep 2024 11:55:07 +0800
Subject: [PATCH] fix: [Cherry-pick] Remove unused Unsafe reflection code
 (#315) (#316)

Cherry-pick from master
pr: #315
Related to #314

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
---
 bapps/go_prompt.go        |  3 ++-
 bapps/go_prompt_parser.go | 19 +------------------
 2 files changed, 3 insertions(+), 19 deletions(-)

diff --git a/bapps/go_prompt.go b/bapps/go_prompt.go
index 84c0770f..bacfe346 100644
--- a/bapps/go_prompt.go
+++ b/bapps/go_prompt.go
@@ -64,7 +64,8 @@ func NewPromptApp(config *configs.Config, opts ...AppOption) BApp {
 				pa.sugguestHistory = !pa.sugguestHistory
 			},
 		}),
-		HandleFD,
+		// setup InputParser with `TearDown` overrided
+		prompt.OptionParser(NewBInputParser()),
 	)
 	pa.prompt = p
 	return pa
diff --git a/bapps/go_prompt_parser.go b/bapps/go_prompt_parser.go
index 096dd8d5..78bb980e 100644
--- a/bapps/go_prompt_parser.go
+++ b/bapps/go_prompt_parser.go
@@ -3,8 +3,6 @@ package bapps
 import (
 	"os"
 	"os/exec"
-	"reflect"
-	"unsafe"
 
 	"github.com/c-bata/go-prompt"
 )
@@ -24,24 +22,9 @@ func (t *bInputParser) TearDown() error {
 	return nil
 }
 
-func NewInputParser(parser *prompt.PosixParser) *bInputParser {
+func NewBInputParser() *bInputParser {
 	p := &bInputParser{
 		PosixParser: prompt.NewStandardInputParser(),
 	}
 	return p
 }
-
-func HandleFD(p *prompt.Prompt) error {
-	in, ok := GetUnexportedField(reflect.ValueOf(p).Elem().FieldByName("in")).(*prompt.PosixParser)
-	if !ok {
-		// failed to reflect
-		return nil
-	}
-
-	return prompt.OptionParser(NewInputParser(in))(p)
-}
-
-func GetUnexportedField(field reflect.Value) interface{} {
-	// nolint
-	return reflect.NewAt(field.Type(), unsafe.Pointer(field.UnsafeAddr())).Elem().Interface()
-}