Fix Collections.SingletonMap for .NET 4.5

2013-02-27 13:08:31 -06:00 · 2013-02-27 13:08:31 -06:00 · ca133e541d
parent 5af2411849
commit ca133e541d
1 changed files with 4 additions and 0 deletions
--- a/runtime/CSharp/Antlr4.Runtime/Sharpen/Collections.cs
+++ b/runtime/CSharp/Antlr4.Runtime/Sharpen/Collections.cs
@ -59,7 +59,11 @@ namespace Sharpen
        public static IDictionary<TKey, TValue> SingletonMap<TKey, TValue>(TKey key, TValue value)
 #endif
        {
+#if NET_4_5
+            return new ReadOnlyDictionary<TKey,TValue>(new Dictionary<TKey, TValue> { { key, value } });
+#else
            return new Dictionary<TKey, TValue> { { key, value } };
+#endif
        }

        private static class EmptyListImpl<T>