Merge pull request #332 from MichalStrehovsky/MDArrayRngChk2

Enable range check code in MDArray accessors

2 files changed, 39 insertions, 0 deletions

diff --git a/src/ILCompiler.Compiler/src/IL/HelperExtensions.cs b/src/ILCompiler.Compiler/src/IL/HelperExtensions.cs
new file mode 100644
index 000000000..a16595f0b
--- /dev/null
+++ b/src/ILCompiler.Compiler/src/IL/HelperExtensions.cs
@@ -0,0 +1,38 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using System;
+
+using ILCompiler;
+using Internal.TypeSystem;
+
+namespace Internal.IL
+{
+    static class HelperExtensions
+    {
+        public static MetadataType GetHelperType(this TypeSystemContext context, string name)
+        {
+            MetadataType helperType = ((CompilerTypeSystemContext)context).SystemModule.GetType("Internal.Runtime.CompilerHelpers", name, false);
+            if (helperType == null)
+            {
+                // TODO: throw the exception that means 'Core Library doesn't have a required thing in it'
+                throw new NotImplementedException();
+            }
+
+            return helperType;
+        }
+
+        public static MethodDesc GetHelperEntryPoint(this TypeSystemContext context, string typeName, string methodName)
+        {
+            MetadataType helperType = context.GetHelperType(typeName);
+            MethodDesc helperMethod = helperType.GetMethod(methodName, null);
+            if (helperMethod == null)
+            {
+                // TODO: throw the exception that means 'Core Library doesn't have a required thing in it'
+                throw new NotImplementedException();
+            }
+
+            return helperMethod;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/ILCompiler.Compiler/src/ILCompiler.Compiler.csproj b/src/ILCompiler.Compiler/src/ILCompiler.Compiler.csproj
index 7213aa62e..01a1404fe 100644
--- a/src/ILCompiler.Compiler/src/ILCompiler.Compiler.csproj
+++ b/src/ILCompiler.Compiler/src/ILCompiler.Compiler.csproj
@@ -81,6 +81,7 @@
     <Compile Include="Compiler\RvaFieldData.cs" />
     <Compile Include="Compiler\IntrinsicMethods.cs" />
     <Compile Include="CppCodeGen\CppWriter.cs" />
+    <Compile Include="IL\HelperExtensions.cs" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="..\..\Common\src\System\Collections\Generic\ArrayBuilder.cs">