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/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation.
*
* This source code is subject to terms and conditions of the Apache License, Version 2.0. A
* copy of the license can be found in the License.html file at the root of this distribution. If
* you cannot locate the Apache License, Version 2.0, please send an email to
* dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
* by the terms of the Apache License, Version 2.0.
*
* You must not remove this notice, or any other, from this software.
*
*
* ***************************************************************************/
using System;
using System.Dynamic.Utils;
using System.Reflection;
#if FEATURE_REFEMIT
using System.Reflection.Emit;
#endif
#if !FEATURE_CORE_DLR
namespace Microsoft.Scripting.Ast.Compiler {
#else
namespace System.Linq.Expressions.Compiler {
#endif
internal static partial class DelegateHelpers {
private const MethodAttributes CtorAttributes = MethodAttributes.RTSpecialName | MethodAttributes.HideBySig | MethodAttributes.Public;
private const MethodImplAttributes ImplAttributes = MethodImplAttributes.Runtime | MethodImplAttributes.Managed;
private const MethodAttributes InvokeAttributes = MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.NewSlot | MethodAttributes.Virtual;
private static readonly Type[] _DelegateCtorSignature = new Type[] { typeof(object), typeof(IntPtr) };
private static Type MakeNewCustomDelegate(Type[] types) {
#if FEATURE_REFEMIT
Type returnType = types[types.Length - 1];
Type[] parameters = types.RemoveLast();
TypeBuilder builder = AssemblyGen.DefineDelegateType("Delegate" + types.Length);
builder.DefineConstructor(CtorAttributes, CallingConventions.Standard, _DelegateCtorSignature).SetImplementationFlags(ImplAttributes);
builder.DefineMethod("Invoke", InvokeAttributes, returnType, parameters).SetImplementationFlags(ImplAttributes);
return builder.CreateType();
#else
throw new NotSupportedException("Method signature not supported on this platform");
#endif
}
}
}
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