Imported Upstream version 1.0.0.9127upstream/1.0.0.9127

1 files changed, 80 insertions, 0 deletions

diff --git a/src/mscorlib/src/System/Runtime/CompilerServices/Unsafe.cs b/src/mscorlib/src/System/Runtime/CompilerServices/Unsafe.cs
new file mode 100644
index 0000000000..b212f4555b
--- /dev/null
+++ b/src/mscorlib/src/System/Runtime/CompilerServices/Unsafe.cs
@@ -0,0 +1,80 @@
+// 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.Runtime.Versioning;
+
+namespace System.Runtime.CompilerServices
+{
+    //
+    // Subsetted clone of System.Runtime.CompilerServices.Unsafe for internal runtime use.
+    // Keep in sync with https://github.com/dotnet/corefx/tree/master/src/System.Runtime.CompilerServices.Unsafe.
+    // 
+
+    /// <summary>
+    /// Contains generic, low-level functionality for manipulating pointers.
+    /// </summary>
+    internal static unsafe class Unsafe
+    {
+        /// <summary>
+        /// Returns a pointer to the given by-ref parameter.
+        /// </summary>
+        [NonVersionable]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void* AsPointer<T>(ref T value)
+        {
+            // The body of this function will be replaced by the EE with unsafe code!!!
+            // See getILIntrinsicImplementationForUnsafe for how this happens.  
+            throw new InvalidOperationException();
+        }
+
+        /// <summary>
+        /// Returns the size of an object of the given type parameter.
+        /// </summary>
+        [NonVersionable]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int SizeOf<T>()
+        {
+            // The body of this function will be replaced by the EE with unsafe code that just returns sizeof !!T
+            // See getILIntrinsicImplementationForUnsafe for how this happens.  
+            throw new InvalidOperationException();
+        }
+
+        /// <summary>
+        /// Reinterprets the given reference as a reference to a value of type <typeparamref name="TTo"/>.
+        /// </summary>
+        [NonVersionable]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static ref TTo As<TFrom, TTo>(ref TFrom source)
+        {
+            // The body of this function will be replaced by the EE with unsafe code!!!
+            // See getILIntrinsicImplementationForUnsafe for how this happens.  
+            throw new InvalidOperationException();
+        }
+
+        /// <summary>
+        /// Adds an element offset to the given reference.
+        /// </summary>
+        [NonVersionable]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static ref T Add<T>(ref T source, int elementOffset)
+        {
+            // The body of this function will be replaced by the EE with unsafe code!!!
+            // See getILIntrinsicImplementationForUnsafe for how this happens.
+            typeof(T).ToString(); // Type used by the actual method body
+            throw new InvalidOperationException();
+        }
+
+        /// <summary>
+        /// Determines whether the specified references point to the same location.
+        /// </summary>
+        [NonVersionable]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool AreSame<T>(ref T left, ref T right)
+        {
+            // The body of this function will be replaced by the EE with unsafe code!!!
+            // See getILIntrinsicImplementationForUnsafe for how this happens.  
+            throw new InvalidOperationException();
+        }
+    }
+}