well-goknown/vendor/github.com/valyala/fasthttp/s2b_old.go

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//go:build !go1.20
package fasthttp
import (
"reflect"
"unsafe"
)
// s2b converts string to a byte slice without memory allocation.
//
// Note it may break if string and/or slice header will change
// in the future go versions.
func s2b(s string) (b []byte) {
bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
sh := (*reflect.StringHeader)(unsafe.Pointer(&s))
bh.Data = sh.Data
bh.Cap = sh.Len
bh.Len = sh.Len
return b
}