1 files changed, 48 insertions, 0 deletions
diff --git a/src/mscorlib/shared/System/Reflection/SignatureHasElementType.cs b/src/mscorlib/shared/System/Reflection/SignatureHasElementType.cs
new file mode 100644
index 0000000000..e1aa6c3584
--- /dev/null
+++ b/src/mscorlib/shared/System/Reflection/SignatureHasElementType.cs
@@ -0,0 +1,48 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Diagnostics;
+
+namespace System.Reflection
+{
+    internal abstract class SignatureHasElementType : SignatureType
+    {
+        protected SignatureHasElementType(SignatureType elementType)
+        {
+            Debug.Assert(elementType != null);  
+            _elementType = elementType;
+        }
+    
+        public sealed override bool IsTypeDefinition => false;
+        public sealed override bool IsGenericTypeDefinition => false;
+        protected sealed override bool HasElementTypeImpl() => true;
+        protected abstract override bool IsArrayImpl();
+        protected abstract override bool IsByRefImpl();
+        public sealed override bool IsByRefLike => false;
+        protected abstract override bool IsPointerImpl();
+        public abstract override bool IsSZArray { get; }
+        public abstract override bool IsVariableBoundArray { get; }
+        public sealed override bool IsConstructedGenericType => false;
+        public sealed override bool IsGenericParameter => false;
+        public sealed override bool IsGenericMethodParameter => false;
+        public sealed override bool ContainsGenericParameters => _elementType.ContainsGenericParameters;
+    
+        internal sealed override SignatureType ElementType => _elementType;
+        public abstract override int GetArrayRank();
+        public sealed override Type GetGenericTypeDefinition() => throw new InvalidOperationException(SR.InvalidOperation_NotGenericType);
+        public sealed override Type[] GetGenericArguments() => Array.Empty<Type>();
+        public sealed override Type[] GenericTypeArguments => Array.Empty<Type>();
+        public sealed override int GenericParameterPosition => throw new InvalidOperationException(SR.Arg_NotGenericParameter);
+    
+        public sealed override string Name => _elementType.Name + Suffix;
+        public sealed override string Namespace => _elementType.Namespace;
+    
+        public sealed override string ToString() => _elementType.ToString() + Suffix;
+    
+        protected abstract string Suffix { get; } 
+    
+        private readonly SignatureType _elementType;
+    }
+}