From 00595609af53514ffd39d9aeab0d33e6d84cbdb5 Mon Sep 17 00:00:00 2001
From: Keuin <keuinx@gmail.com>
Date: Wed, 7 Sep 2022 12:45:46 +0800
Subject: More comprehensive danmaku message handling.

---
 danmaku/dmmsg/util.go | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 danmaku/dmmsg/util.go

(limited to 'danmaku/dmmsg/util.go')

diff --git a/danmaku/dmmsg/util.go b/danmaku/dmmsg/util.go
new file mode 100644
index 0000000..9d41ab9
--- /dev/null
+++ b/danmaku/dmmsg/util.go
@@ -0,0 +1,17 @@
+package dmmsg
+
+import (
+	"fmt"
+	"reflect"
+)
+
+func castValue[T any](obj interface{}) (thing T, err error) {
+	casted, ok := (obj).(T)
+	if !ok {
+		err = fmt.Errorf("%s: required value is not of type \"%v\": %v",
+			kInvalidDanmakuJson, reflect.TypeOf(thing).String(), obj)
+		return
+	}
+	thing = casted
+	return
+}
-- 
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