kate.shared.CommandLine: v1.6.2

Author: ktwrd

kate.shared.CommandLine/CHANGELOG.md

@@ -1,3 +1,7 @@
+## v1.6.2 (27th Oct, 2025)
+
+- Fixed reflection bugs when setting default value for options.
+
 ## v1.6.1 (27th Oct, 2025)
 
 - Fixed non-string default values not working for options.

kate.shared.CommandLine/CommandLineHelper.cs

@@ -183,23 +183,25 @@ string BuildShortName(ActionParameterAttribute a)
                     }
                 }
             }
-
             void SetDefaultValue(
                 PropertyInfo prop,
                 Type argumentInstanceType,
                 object argumentInstance)
             {
-                var defaultValueAttr = prop.GetCustomAttribute<DefaultValueAttribute>();
-                if (defaultValueAttr != null)
+                var delMethod = typeof(CommandLineHelper).GetMethod(nameof(GetDefaultValueDelegate), BindingFlags.NonPublic | BindingFlags.Static);
+                var delGen = delMethod.MakeGenericMethod(prop.PropertyType);
+                var del = delGen.Invoke(null, new object[] { prop });
+                if (del != null)
                 {
                     var defaultValueProperty = argumentInstanceType.GetProperty("DefaultValueFactory",
                         BindingFlags.Public | BindingFlags.Instance);
                     if (defaultValueProperty == null)
                         throw new InvalidOperationException(
                             $"Could not find property DefaultValueFactory on type {argumentInstanceType}");
-                    defaultValueProperty.SetValue(argumentInstance, (ArgumentResult _) => defaultValueAttr.Value);
+                    defaultValueProperty.SetValue(argumentInstance, del);
                 }
             }
+
             string[] GenerateAliases(
                 PropertyInfo prop)
             {
@@ -438,5 +440,12 @@ private static string FormatTypeName(Type type)
         {
             return type.Namespace + '.' + type.Name;
         }
+
+        private static Func<ArgumentResult, T> GetDefaultValueDelegate<T>(PropertyInfo prop)
+        {
+            var defaultValueAttr = prop.GetCustomAttribute<DefaultValueAttribute>();
+            if (defaultValueAttr == null) return null;
+            return (ArgumentResult _) => (T)defaultValueAttr.Value;
+        }
     }
 }

kate.shared.CommandLine/kate.shared.CommandLine.csproj

@@ -4,7 +4,7 @@
     <TargetFrameworks>net6.0;net8.0;net9.0</TargetFrameworks>
     <Nullable>disable</Nullable>
     <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
-    <Version>1.6.1</Version>
+    <Version>1.6.2</Version>
 
     <Title>Kate's Shared Library - System.CommandLine Utilities</Title>
     <Copyright>Copyright 2022-2025 Kate Ward &lt;kate@dariox.club&gt;</Copyright>