1 files changed, 103 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Security/PermissionSetEnumerator.cs b/src/mscorlib/src/System/Security/PermissionSetEnumerator.cs
new file mode 100644
index 0000000000..55b56cb570
--- /dev/null
+++ b/src/mscorlib/src/System/Security/PermissionSetEnumerator.cs
@@ -0,0 +1,103 @@
+// 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.
+
+// 
+
+namespace System.Security 
+{
+    //PermissionSetEnumerator.cs
+    
+    using System;
+    using System.Collections;
+    using TokenBasedSetEnumerator = System.Security.Util.TokenBasedSetEnumerator;
+    using TokenBasedSet = System.Security.Util.TokenBasedSet;
+    
+    internal class PermissionSetEnumerator : IEnumerator 
+    {
+        PermissionSetEnumeratorInternal enm;
+        
+        public Object Current
+        {
+            get
+            {
+                return enm.Current;
+            }
+        }
+
+        public bool MoveNext()
+        {
+            return enm.MoveNext();
+        }
+        
+        public void Reset()
+        {
+            enm.Reset();
+        }
+        
+        internal PermissionSetEnumerator(PermissionSet permSet)
+        {
+            enm = new PermissionSetEnumeratorInternal(permSet);
+        }
+    }
+    
+    internal struct PermissionSetEnumeratorInternal 
+    {
+        private PermissionSet m_permSet;
+        private TokenBasedSetEnumerator enm;
+        
+        public Object Current
+        {
+            get
+            {
+                return enm.Current;
+            }
+        }
+
+        internal PermissionSetEnumeratorInternal(PermissionSet permSet)
+        {
+            m_permSet = permSet;
+            enm = new TokenBasedSetEnumerator(permSet.m_permSet);
+        }
+
+        public int GetCurrentIndex()
+        {
+            return enm.Index;
+        }
+        
+        public void Reset()
+        {
+            enm.Reset();
+        }
+        
+        public bool MoveNext()
+        {
+            while (enm.MoveNext())
+            {
+                Object obj = enm.Current;
+                IPermission perm = obj as IPermission;
+                if (perm != null)
+                {
+                    enm.Current = perm;
+                    return true;
+                }
+
+#if FEATURE_CAS_POLICY
+                SecurityElement elem = obj as SecurityElement;
+
+                if (elem != null)
+                {
+                    perm = m_permSet.CreatePermission(elem, enm.Index);
+                    if (perm != null)
+                    {
+                        enm.Current = perm;
+                        return true;
+                    }
+                }
+#endif // FEATURE_CAS_POLICY
+            }
+            return false;
+        }
+    }
+}
+