Improve routing calculation

ctx.go

@@ -38,6 +38,7 @@ type Ctx struct {
 	indexRoute   int                  // Index of the current route
 	indexHandler int                  // Index of the current handler
 	method       string               // HTTP method
+	methodINT    int                  // HTTP method INT equivalent
 	path         string               // Prettified HTTP path
 	pathOriginal string               // Original HTTP path
 	values       []string             // Route parameter values
@@ -90,6 +91,7 @@ func (app *App) AcquireCtx(fctx *fasthttp.RequestCtx) *Ctx {
 	ctx.pathOriginal = ctx.path
 	// Set method
 	ctx.method = getString(fctx.Request.Header.Method())
+	ctx.methodINT = methodInt(ctx.method)
 	// Attach *fasthttp.RequestCtx to ctx
 	ctx.Fasthttp = fctx
 	return ctx
@@ -580,10 +582,12 @@ func (ctx *Ctx) Location(path string) {
 func (ctx *Ctx) Method(override ...string) string {
 	if len(override) > 0 {
 		method := utils.ToUpper(override[0])
-		if methodInt(method) == 0 && method != MethodGet {
+		mINT := methodInt(method)
+		if mINT == 0 && method != MethodGet {
 			return ctx.method
 		}
 		ctx.method = method
+		ctx.methodINT = mINT
 	}
 	return ctx.method
 }

router.go

@@ -85,16 +85,14 @@ func (r *Route) match(path, original string) (match bool, values []string) {
 }
 
 func (app *App) next(ctx *Ctx) bool {
-	// TODO set unique INT within handler(), not here over and over again
-	method := methodInt(ctx.method)
 	// Get stack length
-	lenr := len(app.stack[method]) - 1
+	lenr := len(app.stack[ctx.methodINT]) - 1
 	// Loop over the route stack starting from previous index
 	for ctx.indexRoute < lenr {
 		// Increment route index
 		ctx.indexRoute++
 		// Get *Route
-		route := app.stack[method][ctx.indexRoute]
+		route := app.stack[ctx.methodINT][ctx.indexRoute]
 		// Check if it matches the request path
 		match, values := route.match(ctx.path, ctx.pathOriginal)
 		// No match, next route