bs.go

// https://github.com/panjf2000/gnet/blob/dev/internal/bs/bs.go
package aerrors

import (
	"reflect"
	"unsafe"
)

// BytesToString converts byte slice to a string without memory allocation.
//
// Note it may break if the implementation of string or slice header changes in the future go versions.
func BytesToString(b []byte) string {
	/* #nosec G103 */
	return *(*string)(unsafe.Pointer(&b))
}

// StringToBytes converts string to a byte slice without memory allocation.
//
// Note it may break if the implementation of string or slice header changes in the future go versions.
// nolint
func StringToBytes(s string) (b []byte) {
	/* #nosec G103 */
	sh := (*reflect.StringHeader)(unsafe.Pointer(&s))
	/* #nosec G103 */
	bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))

	bh.Data, bh.Len, bh.Cap = sh.Data, sh.Len, sh.Len
	return b
}