细节优化

lib/bot.js

@@ -241,6 +241,32 @@ export default class Yunzai extends EventEmitter {
     return map
   }
 
+  StringOrNull(data) {
+    if (typeof data == "object" && typeof data.toString != "function")
+      return "[object null]"
+    return String(data)
+  }
+
+  getCircularReplacer() {
+    const _this_ = this, ancestors = []
+    return function (key, value) {
+      switch (typeof value) {
+        case "function":
+          return String(value)
+        case "object":
+          if (value !== null) break
+        default:
+          return value
+      }
+      while (ancestors.length > 0 && ancestors.at(-1) !== this)
+        ancestors.pop()
+      if (ancestors.includes(value))
+        return `[Circular ${_this_.StringOrNull(value)}]`
+      ancestors.push(value)
+      return value
+    }
+  }
+
   String(data) {
     switch (typeof data) {
       case "string":
@@ -255,22 +281,15 @@ export default class Yunzai extends EventEmitter {
     }
 
     try {
-      return JSON.stringify(data)
+      return JSON.stringify(data, this.getCircularReplacer())
     } catch (err) {
-      if (typeof data.toString == "function")
-        return String(data)
-      else
-        return "[object null]"
+      return this.StringOrNull(data)
     }
   }
 
   Loging(data) {
     if (typeof data == "string") return data
-    if (!cfg.bot.log_object && typeof data == "object")
-      if (typeof data.toString == "function")
-        return String(data)
-      else
-        return "[object null]"
+    if (!cfg.bot.log_object) return this.StringOrNull(data)
 
     return util.inspect(data, {
       depth: 10,