From c5942ea346b2c8fdda3f2d7eb9fa8d92824e0b6b Mon Sep 17 00:00:00 2001
From: Luke Aguilar <dev@rdxip.com>
Date: Mon, 6 May 2024 11:49:50 +1000
Subject: [PATCH] Added parseNullable

---
 lib/version.dart | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib/version.dart b/lib/version.dart
index 51199af..5d03dfe 100644
--- a/lib/version.dart
+++ b/lib/version.dart
@@ -188,6 +188,18 @@ class Version implements Comparable<Version> {
         build: build, preRelease: preReleaseList);
   }
 
+  /// Creates a nullable [Version] instance from a string.
+  ///
+  /// The string must conform to the specification at http://semver.org/
+  /// Returns null if the string is empty or null
+  /// Throws [FormatException] if the string does not conform to the spec.
+  static Version? parseNullable(String? versionString) {
+    if (versionString == null || versionString.isEmpty) {
+      return null;
+    }
+    return parse(versionString);
+  }
+
   static int _compare(Version? a, Version? b) {
     if (a == null) {
       throw ArgumentError.notNull("a");