RssSource.kt: Modify functions into assigning style

Signed-off-by: 1552980358 <1552980358@qq.com>

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

@@ -43,45 +43,33 @@ data class RssSource(
     var customOrder: Int = 0
 ): Parcelable, JsExtensions {
     
-    override fun equals(other: Any?): Boolean {
-        if (other is RssSource) {
-            return other.sourceUrl == sourceUrl
-        }
-        return false
-    }
+    override fun equals(other: Any?) = if (other is RssSource) other.sourceUrl == sourceUrl else false
     
-    override fun hashCode(): Int {
-        return sourceUrl.hashCode()
-    }
+    override fun hashCode() = sourceUrl.hashCode()
     
     @Throws(Exception::class)
-    fun getHeaderMap(): Map<String, String> {
-        val headerMap = HashMap<String, String>()
-        headerMap[AppConst.UA_NAME] = App.INSTANCE.getPrefString("user_agent") ?: AppConst.userAgent
+    fun getHeaderMap() = HashMap<String, String>().apply {
+        this[AppConst.UA_NAME] = App.INSTANCE.getPrefString("user_agent") ?: AppConst.userAgent
         header?.let {
-            val header1 = when {
+            GSON.fromJsonObject<Map<String, String>>(
+                when {
                     it.startsWith("@js:", true) ->
                         evalJS(it.substring(4)).toString()
                     it.startsWith("<js>", true) ->
                         evalJS(it.substring(4, it.lastIndexOf("<"))).toString()
                     else -> it
                 }
-            GSON.fromJsonObject<Map<String, String>>(header1)?.let { map ->
-                headerMap.putAll(map)
+            )?.let { map ->
+                putAll(map)
             }
         }
-        return headerMap
     }
     
     /**
      * 执行JS
      */
     @Throws(Exception::class)
-    private fun evalJS(jsStr: String): Any {
-        val bindings = SimpleBindings()
-        bindings["java"] = this
-        return AppConst.SCRIPT_ENGINE.eval(jsStr, bindings)
-    }
+    private fun evalJS(jsStr: String): Any = AppConst.SCRIPT_ENGINE.eval(jsStr, SimpleBindings().apply { this["java"] = this@RssSource })
     
     fun equal(source: RssSource): Boolean {
         return equal(sourceUrl, source.sourceUrl)
@@ -103,16 +91,15 @@ data class RssSource(
         return a == b || (a.isNullOrEmpty() && b.isNullOrEmpty())
     }
     
-    fun sortUrls(): LinkedHashMap<String, String> {
-        val sortMap = linkedMapOf<String, String>()
+    fun sortUrls(): LinkedHashMap<String, String> =
+        linkedMapOf<String, String>().apply {
             sortUrl?.split("(&&|\n)+".toRegex())?.forEach { c ->
                 val d = c.split("::")
                 if (d.size > 1)
-                sortMap[d[0]] = d[1]
+                    this[d[0]] = d[1]
             }
-        if (sortMap.isEmpty()) {
-            sortMap[""] = sourceUrl
+            if (isEmpty()) {
+                this[""] = sourceUrl
             }
-        return sortMap
         }
 }