1 files changed, 36 insertions, 0 deletions
diff --git a/src/StardewModdingAPI.Toolkit/Serialisation/Converters/SemanticVersionConverter.cs b/src/StardewModdingAPI.Toolkit/Serialisation/Converters/SemanticVersionConverter.cs
new file mode 100644
index 00000000..2075d27e
--- /dev/null
+++ b/src/StardewModdingAPI.Toolkit/Serialisation/Converters/SemanticVersionConverter.cs
@@ -0,0 +1,36 @@
+using Newtonsoft.Json.Linq;
+using StardewModdingAPI.Toolkit.Serialisation.Models;
+
+namespace StardewModdingAPI.Toolkit.Serialisation.Converters
+{
+    /// <summary>Handles deserialisation of <see cref="SemanticVersion"/>.</summary>
+    internal class SemanticVersionConverter : SimpleReadOnlyConverter<SemanticVersion>
+    {
+        /*********
+        ** Protected methods
+        *********/
+        /// <summary>Read a JSON object.</summary>
+        /// <param name="obj">The JSON object to read.</param>
+        /// <param name="path">The path to the current JSON node.</param>
+        protected override SemanticVersion ReadObject(JObject obj, string path)
+        {
+            int major = obj.ValueIgnoreCase<int>("MajorVersion");
+            int minor = obj.ValueIgnoreCase<int>("MinorVersion");
+            int patch = obj.ValueIgnoreCase<int>("PatchVersion");
+            string build = obj.ValueIgnoreCase<string>("Build");
+            return new LegacyManifestVersion(major, minor, patch, build);
+        }
+
+        /// <summary>Read a JSON string.</summary>
+        /// <param name="str">The JSON string value.</param>
+        /// <param name="path">The path to the current JSON node.</param>
+        protected override SemanticVersion ReadString(string str, string path)
+        {
+            if (string.IsNullOrWhiteSpace(str))
+                return null;
+            if (!SemanticVersion.TryParse(str, out ISemanticVersion version))
+                throw new SParseException($"Can't parse semantic version from invalid value '{str}', should be formatted like 1.2, 1.2.30, or 1.2.30-beta (path: {path}).");
+            return (SemanticVersion)version;
+        }
+    }
+}