refactor: using unsafe.String and unsafe.SliceData (backport #21412) (#21545)

Co-authored-by: cui <523516579@qq.com>
Co-authored-by: Julien Robert <julien@rbrt.fr>

CHANGELOG.md

@@ -43,6 +43,7 @@ Every module contains its own CHANGELOG.md. Please refer to the module you are i
 ### Improvements
 
 * (client) [#21436](https://github.com/cosmos/cosmos-sdk/pull/21436) Use `address.Codec` from client.Context in `tx.Sign`.
+* (internal) [#21412](https://github.com/cosmos/cosmos-sdk/pull/21412) Using unsafe.String and unsafe.SliceData.
 
 ### API Breaking Changes
 

internal/conv/string.go

@@ -15,5 +15,5 @@ func UnsafeStrToBytes(s string) []byte {
 // to be used generally, but for a specific pattern to delete keys
 // from a map.
 func UnsafeBytesToStr(b []byte) string {
-	return *(*string)(unsafe.Pointer(&b))
+	return unsafe.String(unsafe.SliceData(b), len(b))
 }

x/authz/internal/conv/string.go

@@ -13,5 +13,5 @@ func UnsafeStrToBytes(s string) []byte {
 // to be used generally, but for a specific pattern to delete keys
 // from a map.
 func UnsafeBytesToStr(b []byte) string {
-	return *(*string)(unsafe.Pointer(&b))
+	return unsafe.String(unsafe.SliceData(b), len(b))
 }

x/nft/internal/conv/string.go

@@ -15,5 +15,5 @@ func UnsafeStrToBytes(s string) []byte {
 // to be used generally, but for a specific pattern to delete keys
 // from a map.
 func UnsafeBytesToStr(b []byte) string {
-	return *(*string)(unsafe.Pointer(&b))
+	return unsafe.String(unsafe.SliceData(b), len(b))
 }