优化

app/src/main/java/io/legado/app/data/entities/RssSource.kt

@@ -41,9 +41,14 @@ data class RssSource(
     var loadWithBaseUrl: Boolean = false,
 
     var customOrder: Int = 0
-): Parcelable, JsExtensions {
+) : Parcelable, JsExtensions {
 
-    override fun equals(other: Any?) = if (other is RssSource) other.sourceUrl == sourceUrl else false
+    override fun equals(other: Any?): Boolean {
+        if (other is RssSource) {
+            return other.sourceUrl == sourceUrl
+        }
+        return false
+    }
 
     override fun hashCode() = sourceUrl.hashCode()
 
@@ -69,7 +74,11 @@ data class RssSource(
      * 执行JS
      */
     @Throws(Exception::class)
-    private fun evalJS(jsStr: String): Any = AppConst.SCRIPT_ENGINE.eval(jsStr, SimpleBindings().apply { this["java"] = this@RssSource })
+    private fun evalJS(jsStr: String): Any? {
+        val bindings = SimpleBindings()
+        bindings["java"] = this
+        return AppConst.SCRIPT_ENGINE.eval(jsStr, bindings)
+    }
 
     fun equal(source: RssSource): Boolean {
         return equal(sourceUrl, source.sourceUrl)