net/url: reduce allocs on resolvePath func

pregrow result array to avoid small allocation. Change-Id: Ife5f815efa4c163ecdbb3a4c16bfb60a484dfa11 Reviewed-on: https://go-review.googlesource.com/c/go/+/174706 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
golang · Nov 8, 2019 · 3e5c043 · 3e5c043
1 parent 4692343
commit 3e5c043
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/net/url/url.go b/src/net/url/url.go
@@ -950,8 +950,8 @@ func resolvePath(base, ref string) string {
 	if full == "" {
 		return ""
 	}
-	var dst []string
 	src := strings.Split(full, "/")
+	dst := make([]string, 0, len(src))
 	for _, elem := range src {
 		switch elem {
 		case ".":