package fastjson

import (
	"reflect"
	"unsafe"
)

func b2s(b []byte) string {
	return *(*string)(unsafe.Pointer(&b))
}

func s2b(s string) []byte {
	strh := (*reflect.StringHeader)(unsafe.Pointer(&s))
	var sh reflect.SliceHeader
	sh.Data = strh.Data
	sh.Len = strh.Len
	sh.Cap = strh.Len
	return *(*[]byte)(unsafe.Pointer(&sh))
}

const maxStartEndStringLen = 80

func startEndString(s string) string {
	if len(s) <= maxStartEndStringLen {
		return s
	}
	start := s[:40]
	end := s[len(s)-40:]
	return start + "..." + end
}