Function stringToBytes

context.go:34–39

stringToBytes returns a []byte view over s without copying, avoiding the allocation+copy of []byte(s) on the response write path (the zero-copy technique used by fasthttp/fiber). Contract — all of the following must hold at every call site: - The result is read-only: writing through it is undefined

(s string)

//     concrete writer may be a wrapping ResponseWriter (e.g. gzip); such writers must copy, not alias.
//   - s must stay reachable for as long as the slice is used: the slice aliases s's backing array.
func stringToBytes(s string) []byte {
	if s == "" {
		return nil
	}
	return unsafe.Slice(unsafe.StringData(s), len(s))
}

// jsonpOpen and jsonpClose are the constant byte wrappers for JSONP payloads, kept as package-level
// slices to avoid allocating them on every JSONP response.