From a6e4a8d4fc691c6090c7af55d5d4df1c5317c4d1 Mon Sep 17 00:00:00 2001
From: Vitor Pamplona <vitor@vitorpamplona.com>
Date: Mon, 6 Oct 2025 18:05:03 -0400
Subject: [PATCH] Performance improvement for the address serializer.

---
 .../vitorpamplona/quartz/nip01Core/core/Address.kt   | 12 ++++++------
 .../quartz/nip01Core/core/AddressSerializer.kt       |  8 +++++++-
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/quartz/src/androidMain/kotlin/com/vitorpamplona/quartz/nip01Core/core/Address.kt b/quartz/src/androidMain/kotlin/com/vitorpamplona/quartz/nip01Core/core/Address.kt
index 92eabead1..cbc23ae12 100644
--- a/quartz/src/androidMain/kotlin/com/vitorpamplona/quartz/nip01Core/core/Address.kt
+++ b/quartz/src/androidMain/kotlin/com/vitorpamplona/quartz/nip01Core/core/Address.kt
@@ -40,16 +40,16 @@ actual data class Address actual constructor(
             dTag.bytesUsedInMemory()
 
     actual override fun compareTo(other: Address): Int {
-        val result = kind.compareTo(other.kind)
-        return if (result == 0) {
-            val result2 = pubKeyHex.compareTo(other.pubKeyHex)
-            if (result2 == 0) {
+        val kindComparison = kind.compareTo(other.kind)
+        return if (kindComparison == 0) {
+            val pubkeyComparison = pubKeyHex.compareTo(other.pubKeyHex)
+            if (pubkeyComparison == 0) {
                 dTag.compareTo(other.dTag)
             } else {
-                result2
+                pubkeyComparison
             }
         } else {
-            result
+            kindComparison
         }
     }
 
diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/core/AddressSerializer.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/core/AddressSerializer.kt
index 0e3ec2490..ca60a06cd 100644
--- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/core/AddressSerializer.kt
+++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/core/AddressSerializer.kt
@@ -31,7 +31,13 @@ class AddressSerializer {
             kind: Int,
             pubKeyHex: HexKey,
             dTag: String = "",
-        ) = "$kind:$pubKeyHex:$dTag"
+        ) = buildString {
+            append(kind)
+            append(":")
+            append(pubKeyHex)
+            append(":")
+            append(dTag)
+        }
 
         fun parse(addressId: String): Address? {
             if (addressId.isBlank()) return null