From 31939986b97cd5e59aa05c26250e5570804a93c0 Mon Sep 17 00:00:00 2001
From: Bo-Yi Wu <appleboy.tw@gmail.com>
Date: Sun, 17 May 2020 02:04:10 +0800
Subject: [PATCH] update

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
---
 tree.go | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/tree.go b/tree.go
index f528fa3b..98581b9c 100644
--- a/tree.go
+++ b/tree.go
@@ -9,6 +9,7 @@ import (
 	"strings"
 	"unicode"
 	"unicode/utf8"
+	"unsafe"
 )
 
 // Param is a single URL parameter, consisting of a key and a value.
@@ -40,6 +41,16 @@ func (ps Params) ByName(name string) (va string) {
 	return
 }
 
+func strToBytes(s string) []byte {
+	x := (*[2]uintptr)(unsafe.Pointer(&s))
+	h := [3]uintptr{x[0], x[1], x[1]}
+	return *(*[]byte)(unsafe.Pointer(&h))
+}
+
+func bytesToStr(b []byte) string {
+	return *(*string)(unsafe.Pointer(&b))
+}
+
 type methodTree struct {
 	method string
 	root   *node
@@ -163,7 +174,7 @@ walk:
 
 			n.children = []*node{&child}
 			// []byte for proper unicode char conversion, see #65
-			n.indices = string([]byte{n.path[i]})
+			n.indices = bytesToStr([]byte{n.path[i]})
 			n.path = path[:i]
 			n.handlers = nil
 			n.wildChild = false
@@ -223,7 +234,7 @@ walk:
 			// Otherwise insert it
 			if c != ':' && c != '*' {
 				// []byte for proper unicode char conversion, see #65
-				n.indices += string([]byte{c})
+				n.indices += bytesToStr([]byte{c})
 				child := &node{
 					fullPath: fullPath,
 				}