1 files changed, 138 insertions, 0 deletions
diff --git a/generator/plugins/dotnet/custom/OrType.cs b/generator/plugins/dotnet/custom/OrType.cs
new file mode 100644
index 0000000..2ddf320
--- /dev/null
+++ b/generator/plugins/dotnet/custom/OrType.cs
@@ -0,0 +1,138 @@
+using System;
+
+public record OrType<T, U> : IOrType
+{
+    public object? Value { get; }
+    public OrType(T t)
+    {
+        Value = t ?? throw new ArgumentNullException(nameof(t));
+    }
+
+    public OrType(U u)
+    {
+        Value = u ?? throw new ArgumentNullException(nameof(u));
+    }
+
+    public static explicit operator U?(OrType<T, U> obj)
+    {
+        return obj.Value is U x ? x : default;
+    }
+
+    public static explicit operator T?(OrType<T, U> obj)
+    {
+        return obj.Value is T x ? x : default;
+    }
+
+    public static explicit operator OrType<T, U>(U obj) => obj is null ? null! : new OrType<T, U>(obj);
+    public static explicit operator OrType<T, U>(T obj) => obj is null ? null! : new OrType<T, U>(obj);
+
+    public override string ToString()
+    {
+        return Value?.ToString()!;
+    }
+}
+
+public record OrType<T, U, V> : IOrType
+{
+    public object? Value { get; }
+
+    public OrType(T t)
+    {
+        Value = t ?? throw new ArgumentNullException(nameof(t));
+    }
+
+    public OrType(U u)
+    {
+        Value = u ?? throw new ArgumentNullException(nameof(u));
+    }
+
+    public OrType(V v)
+    {
+        Value = v ?? throw new ArgumentNullException(nameof(v));
+    }
+
+    public static explicit operator U?(OrType<T, U, V> obj)
+    {
+        return obj.Value is U x ? x : default;
+    }
+
+    public static explicit operator T?(OrType<T, U, V> obj)
+    {
+        return obj.Value is T x ? x : default;
+    }
+
+    public static explicit operator V?(OrType<T, U, V> obj)
+    {
+        return obj.Value is V x ? x : default;
+    }
+
+    public static explicit operator OrType<T, U, V>(U obj) => obj is null ? null! : new OrType<T, U, V>(obj);
+
+    public static explicit operator OrType<T, U, V>(T obj) => obj is null ? null! : new OrType<T, U, V>(obj);
+
+    public static explicit operator OrType<T, U, V>(V obj) => obj is null ? null! : new OrType<T, U, V>(obj);
+
+    public override string ToString()
+    {
+        return Value?.ToString()!;
+    }
+}
+
+
+public record OrType<T, U, V, W> : IOrType
+{
+    public object? Value { get; }
+
+    public OrType(T t)
+    {
+        Value = t ?? throw new ArgumentNullException(nameof(t));
+    }
+
+    public OrType(U u)
+    {
+        Value = u ?? throw new ArgumentNullException(nameof(u));
+    }
+
+    public OrType(V v)
+    {
+        Value = v ?? throw new ArgumentNullException(nameof(v));
+    }
+
+    public OrType(W w)
+    {
+        Value = w ?? throw new ArgumentNullException(nameof(w));
+    }
+
+    public static explicit operator U?(OrType<T, U, V, W> obj)
+    {
+        return obj.Value is U x ? x : default;
+    }
+
+    public static explicit operator T?(OrType<T, U, V, W> obj)
+    {
+        return obj.Value is T x ? x : default;
+    }
+
+    public static explicit operator V?(OrType<T, U, V, W> obj)
+    {
+        return obj.Value is V x ? x : default;
+    }
+
+    public static explicit operator W?(OrType<T, U, V, W> obj)
+    {
+        return obj.Value is W x ? x : default;
+    }
+
+    public static explicit operator OrType<T, U, V, W>(U obj) => obj is null ? null! : new OrType<T, U, V, W>(obj);
+
+    public static explicit operator OrType<T, U, V, W>(T obj) => obj is null ? null! : new OrType<T, U, V, W>(obj);
+
+    public static explicit operator OrType<T, U, V, W>(V obj) => obj is null ? null! : new OrType<T, U, V, W>(obj);
+
+    public static explicit operator OrType<T, U, V, W>(W obj) => obj is null ? null! : new OrType<T, U, V, W>(obj);
+
+    public override string ToString()
+    {
+        return Value?.ToString()!;
+    }
+}