nanoid

commit 3fbee55188451fb764e60ebcc7c6cab7e437fd7e
parent a9ba6fa04c2792c10928e28d8157b8bfca337c64
Author: Yongbin Kim <iam@yongbin.kim>
Date:   Tue, 10 Jan 2023 05:19:24 +0000

Some unsafe stuff
... with very small performance benifit

Diffstat:
M
nanoid.go
 | 
10
++++++----

1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/nanoid.go b/nanoid.go
@@ -3,6 +3,7 @@ package nanoid
 import (
 	"io"
 	"sync"
+	"unsafe"
 
 	cryptoRand "crypto/rand"
 )
@@ -52,14 +53,15 @@ func (g *generator) Generate() NanoID {
 		g.offset = 0
 	}
 
-	var id NanoID
+	var id = (*NanoID)(unsafe.Pointer(&g.buf[g.offset]))
 
-	for i := 0; i < idSize; i++ {
-		id[i] = characters[g.buf[g.offset+i]&0b00111111]
+	for i, v := range id {
+		id[i] = characters[v&0b00111111]
 	}
+
 	g.offset += idSize
 
-	return id
+	return *id
 }
 
 func Generate() NanoID {