Reuse existing XML parser instance

Author: janseeger

lib/src/net/alphadev/opml/exporter/OpmlFileFormatter.kt

@@ -5,10 +5,14 @@ import nl.adaptivity.xmlutil.serialization.XML
 
 private const val INDENT_SIZE = 4
 
-fun formatOpmlFile(opmlFile: OpmlFile): String? = try {
+private val xml by lazy {
     XML {
         indent = INDENT_SIZE
-    }.encodeToString(OpmlFile.serializer(), opmlFile) + "\n"
+    }
+}
+
+fun formatOpmlFile(opmlFile: OpmlFile): String? = try {
+    xml.encodeToString(OpmlFile.serializer(), opmlFile) + "\n"
 } catch (_: Throwable) {
     null
 }

lib/src/net/alphadev/opml/import/OpmlFileParser.kt

@@ -4,8 +4,12 @@ import kotlinx.serialization.decodeFromString
 import net.alphadev.opml.format.OpmlFile
 import nl.adaptivity.xmlutil.serialization.XML
 
+private val xml by lazy {
+    XML()
+}
+
 fun parseOpmlFile(input: String): OpmlFile? = try {
-    XML().decodeFromString<OpmlFile>(input)
+    xml.decodeFromString<OpmlFile>(input)
 } catch (_: Throwable) {
     null
 }