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30 lines (27 loc) · 671 Bytes
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hack.go
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30 lines (27 loc) · 671 Bytes
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package hack
import (
"reflect"
"unsafe"
)
// String converts slice to string without copy.
// Use at your own risk.
func String(b []byte) (s string) {
if len(b) == 0 {
return ""
}
pbytes := (*reflect.SliceHeader)(unsafe.Pointer(&b))
pstring := (*reflect.StringHeader)(unsafe.Pointer(&s))
pstring.Data = pbytes.Data
pstring.Len = pbytes.Len
return
}
// Slice converts string to slice without copy.
// Use at your own risk.
func Slice(s string) (b []byte) {
pbytes := (*reflect.SliceHeader)(unsafe.Pointer(&b))
pstring := (*reflect.StringHeader)(unsafe.Pointer(&s))
pbytes.Data = pstring.Data
pbytes.Len = pstring.Len
pbytes.Cap = pstring.Len
return
}