1 files changed, 36 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Security/Policy/IRuntimeEvidenceFactory.cs b/src/mscorlib/src/System/Security/Policy/IRuntimeEvidenceFactory.cs
new file mode 100644
index 0000000000..98467fe367
--- /dev/null
+++ b/src/mscorlib/src/System/Security/Policy/IRuntimeEvidenceFactory.cs
@@ -0,0 +1,36 @@
+// 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.Collections.Generic;
+
+namespace System.Security.Policy
+{
+    /// <summary>
+    ///     IRuntimeEvidenceFactory is implemented by runtime types which the CLR knows how to delay
+    ///     generate evidence for.  It is used by the Evidence class to get evidence on demand when we first
+    ///     need it.
+    /// </summary>
+    internal interface IRuntimeEvidenceFactory
+    {
+        /// <summary>
+        ///     Object which the evidence generated by this factory is used for
+        /// </summary>
+        IEvidenceFactory Target { get; }
+
+        /// <summary>
+        ///     Get the collection of evidence objects supplied by the factory itself, rather than by the
+        ///     runtime.
+        /// </summary>
+        IEnumerable<EvidenceBase> GetFactorySuppliedEvidence();
+
+        /// <summary>
+        ///     Generate a specific type of evidence for this object, returning null if the specified type of
+        ///     evidence cannot be generated.
+        /// </summary>
+        EvidenceBase GenerateEvidence(Type evidenceType);
+    }
+}