identifier.go, unsafe.go: Document unsafe usage

1 files changed, 3 insertions, 0 deletions

diff --git a/unsafe.go b/unsafe.go
index 7661ace..ed1e56c 100644
--- a/unsafe.go
+++ b/unsafe.go
@@ -5,6 +5,9 @@ package main
 
 import "unsafe"
 
+// Converts a string to a byte slice without copying the string.
+// Memory is borrowed from the string.
+// The resulting byte slice must not be modified in any form.
 func stringToBytes(s string) (bytes []byte) {
 	return unsafe.Slice(unsafe.StringData(s), len(s))
 }