From 6c477ec24079ae36dfc618e3e344179e7d7f7952 Mon Sep 17 00:00:00 2001
From: Herbert Poul <herbert@codeux.design>
Date: Fri, 9 Jul 2021 10:19:47 +0200
Subject: [PATCH] never return null for kdfType

---
 lib/src/crypto/key_encrypter_kdf.dart | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/lib/src/crypto/key_encrypter_kdf.dart b/lib/src/crypto/key_encrypter_kdf.dart
index 144f8b8..60f993a 100644
--- a/lib/src/crypto/key_encrypter_kdf.dart
+++ b/lib/src/crypto/key_encrypter_kdf.dart
@@ -76,18 +76,15 @@ class KeyEncrypterKdf {
     return KdbxUuid(uuid);
   }
 
-  static KdfType? kdfTypeFor(VarDictionary kdfParameters) {
+  static KdfType kdfTypeFor(VarDictionary kdfParameters) {
     final uuid = KdfField.uuid.read(kdfParameters);
     if (uuid == null) {
       throw KdbxCorruptedFileException('No Kdf UUID');
     }
     final kdfUuid = base64.encode(uuid);
-    try {
-      return kdfUuids[kdfUuid];
-    } catch (e) {
-      throw KdbxCorruptedFileException(
-          'Invalid KDF UUID ${uuid.encodeBase64()}');
-    }
+    return kdfUuids[kdfUuid] ??
+        (() => throw KdbxCorruptedFileException(
+            'Invalid KDF UUID ${uuid.encodeBase64()}'))();
   }
 
   final Argon2 argon2;