Aleksandrs Gumenuks / MaximInterface_Extended

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Platforms/dotnet/DelegateWrapper.hpp@4:caf56f265a13, 2018-01-19 (annotated)

Committer:
IanBenzMaxim
Date:
Fri Jan 19 10:25:02 2018 -0600
Revision:
4:caf56f265a13
Parent:
0:f77ad7f72d04 
Cleaned old files.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
IanBenzMaxim 0:f77ad7f72d04 1 /*******************************************************************************
IanBenzMaxim 0:f77ad7f72d04 2 * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
IanBenzMaxim 0:f77ad7f72d04 3 *
IanBenzMaxim 0:f77ad7f72d04 4 * Permission is hereby granted, free of charge, to any person obtaining a
IanBenzMaxim 0:f77ad7f72d04 5 * copy of this software and associated documentation files (the "Software"),
IanBenzMaxim 0:f77ad7f72d04 6 * to deal in the Software without restriction, including without limitation
IanBenzMaxim 0:f77ad7f72d04 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
IanBenzMaxim 0:f77ad7f72d04 8 * and/or sell copies of the Software, and to permit persons to whom the
IanBenzMaxim 0:f77ad7f72d04 9 * Software is furnished to do so, subject to the following conditions:
IanBenzMaxim 0:f77ad7f72d04 10 *
IanBenzMaxim 0:f77ad7f72d04 11 * The above copyright notice and this permission notice shall be included
IanBenzMaxim 0:f77ad7f72d04 12 * in all copies or substantial portions of the Software.
IanBenzMaxim 0:f77ad7f72d04 13 *
IanBenzMaxim 0:f77ad7f72d04 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
IanBenzMaxim 0:f77ad7f72d04 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
IanBenzMaxim 0:f77ad7f72d04 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IanBenzMaxim 0:f77ad7f72d04 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
IanBenzMaxim 0:f77ad7f72d04 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
IanBenzMaxim 0:f77ad7f72d04 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
IanBenzMaxim 0:f77ad7f72d04 20 * OTHER DEALINGS IN THE SOFTWARE.
IanBenzMaxim 0:f77ad7f72d04 21 *
IanBenzMaxim 0:f77ad7f72d04 22 * Except as contained in this notice, the name of Maxim Integrated
IanBenzMaxim 0:f77ad7f72d04 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
IanBenzMaxim 0:f77ad7f72d04 24 * Products, Inc. Branding Policy.
IanBenzMaxim 0:f77ad7f72d04 25 *
IanBenzMaxim 0:f77ad7f72d04 26 * The mere transfer of this software does not imply any licenses
IanBenzMaxim 0:f77ad7f72d04 27 * of trade secrets, proprietary technology, copyrights, patents,
IanBenzMaxim 0:f77ad7f72d04 28 * trademarks, maskwork rights, or any other form of intellectual
IanBenzMaxim 0:f77ad7f72d04 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
IanBenzMaxim 0:f77ad7f72d04 30 * ownership rights.
IanBenzMaxim 0:f77ad7f72d04 31 *******************************************************************************/
IanBenzMaxim 0:f77ad7f72d04 32
IanBenzMaxim 0:f77ad7f72d04 33 #pragma once
IanBenzMaxim 0:f77ad7f72d04 34
IanBenzMaxim 0:f77ad7f72d04 35 #include <msclr/marshal_cppstd.h>
IanBenzMaxim 0:f77ad7f72d04 36 #include <vcclr.h>
IanBenzMaxim 0:f77ad7f72d04 37
IanBenzMaxim 0:f77ad7f72d04 38 namespace MaximInterface {
IanBenzMaxim 0:f77ad7f72d04 39 namespace detail {
IanBenzMaxim 0:f77ad7f72d04 40
IanBenzMaxim 0:f77ad7f72d04 41 template <typename DelegateT> class DelegateWrapperBase {
IanBenzMaxim 0:f77ad7f72d04 42 public:
IanBenzMaxim 0:f77ad7f72d04 43 using Delegate = DelegateT;
IanBenzMaxim 0:f77ad7f72d04 44
IanBenzMaxim 0:f77ad7f72d04 45 protected:
IanBenzMaxim 0:f77ad7f72d04 46 DelegateWrapperBase(Delegate ^ target) : target_(target) {}
IanBenzMaxim 0:f77ad7f72d04 47 ~DelegateWrapperBase() = default;
IanBenzMaxim 0:f77ad7f72d04 48
IanBenzMaxim 0:f77ad7f72d04 49 public:
IanBenzMaxim 0:f77ad7f72d04 50 Delegate ^ target() const { return static_cast<Delegate ^>(target_); }
IanBenzMaxim 0:f77ad7f72d04 51 void setTarget(Delegate ^ target) { target_ = target; }
IanBenzMaxim 0:f77ad7f72d04 52 void swap(DelegateWrapperBase & other) { target_.swap(other.target_); }
IanBenzMaxim 0:f77ad7f72d04 53 explicit operator bool() const { return target() != nullptr; }
IanBenzMaxim 0:f77ad7f72d04 54
IanBenzMaxim 0:f77ad7f72d04 55 private:
IanBenzMaxim 0:f77ad7f72d04 56 gcroot<Delegate ^> target_;
IanBenzMaxim 0:f77ad7f72d04 57 };
IanBenzMaxim 0:f77ad7f72d04 58
IanBenzMaxim 0:f77ad7f72d04 59 template <typename DelegateT>
IanBenzMaxim 0:f77ad7f72d04 60 inline void swap(DelegateWrapperBase<DelegateT> & lhs,
IanBenzMaxim 0:f77ad7f72d04 61 DelegateWrapperBase<DelegateT> & rhs) {
IanBenzMaxim 0:f77ad7f72d04 62 lhs.swap(rhs);
IanBenzMaxim 0:f77ad7f72d04 63 }
IanBenzMaxim 0:f77ad7f72d04 64
IanBenzMaxim 0:f77ad7f72d04 65 template <typename R, typename... Args>
IanBenzMaxim 0:f77ad7f72d04 66 class DelegateWrapperImpl
IanBenzMaxim 0:f77ad7f72d04 67 : public DelegateWrapperBase<System::Func<Args..., R> > {
IanBenzMaxim 0:f77ad7f72d04 68 protected:
IanBenzMaxim 0:f77ad7f72d04 69 DelegateWrapperImpl(Delegate ^ target) : DelegateWrapperBase(target) {}
IanBenzMaxim 0:f77ad7f72d04 70
IanBenzMaxim 0:f77ad7f72d04 71 public:
IanBenzMaxim 0:f77ad7f72d04 72 R operator()(Args... args) { return target()(args...); }
IanBenzMaxim 0:f77ad7f72d04 73 };
IanBenzMaxim 0:f77ad7f72d04 74
IanBenzMaxim 0:f77ad7f72d04 75 template <typename... Args>
IanBenzMaxim 0:f77ad7f72d04 76 class DelegateWrapperImpl<void, Args...>
IanBenzMaxim 0:f77ad7f72d04 77 : public DelegateWrapperBase<System::Action<Args...> > {
IanBenzMaxim 0:f77ad7f72d04 78 protected:
IanBenzMaxim 0:f77ad7f72d04 79 DelegateWrapperImpl(Delegate ^ target) : DelegateWrapperBase(target) {}
IanBenzMaxim 0:f77ad7f72d04 80
IanBenzMaxim 0:f77ad7f72d04 81 public:
IanBenzMaxim 0:f77ad7f72d04 82 void operator()(Args... args) const { target()(args...); }
IanBenzMaxim 0:f77ad7f72d04 83 };
IanBenzMaxim 0:f77ad7f72d04 84
IanBenzMaxim 0:f77ad7f72d04 85 } // namespace detail
IanBenzMaxim 0:f77ad7f72d04 86
IanBenzMaxim 0:f77ad7f72d04 87 /// @{
IanBenzMaxim 0:f77ad7f72d04 88 /// Functor wrapper for .NET delegates.
IanBenzMaxim 0:f77ad7f72d04 89 template <typename> class DelegateWrapper;
IanBenzMaxim 0:f77ad7f72d04 90
IanBenzMaxim 0:f77ad7f72d04 91 template <typename R, typename... Args>
IanBenzMaxim 0:f77ad7f72d04 92 class DelegateWrapper<R(Args...)>
IanBenzMaxim 0:f77ad7f72d04 93 : public detail::DelegateWrapperImpl<R, Args...> {
IanBenzMaxim 0:f77ad7f72d04 94 public:
IanBenzMaxim 0:f77ad7f72d04 95 DelegateWrapper(Delegate ^ target = nullptr) : DelegateWrapperImpl(target) {}
IanBenzMaxim 0:f77ad7f72d04 96 };
IanBenzMaxim 0:f77ad7f72d04 97
IanBenzMaxim 0:f77ad7f72d04 98 template <typename R, typename... Args>
IanBenzMaxim 0:f77ad7f72d04 99 class DelegateWrapper<R __clrcall(Args...)>
IanBenzMaxim 0:f77ad7f72d04 100 : public detail::DelegateWrapperImpl<R, Args...> {
IanBenzMaxim 0:f77ad7f72d04 101 public:
IanBenzMaxim 0:f77ad7f72d04 102 DelegateWrapper(Delegate ^ target = nullptr) : DelegateWrapperImpl(target) {}
IanBenzMaxim 0:f77ad7f72d04 103 };
IanBenzMaxim 0:f77ad7f72d04 104 /// @}
IanBenzMaxim 0:f77ad7f72d04 105
IanBenzMaxim 0:f77ad7f72d04 106 /// Wrapper for using a .NET delegate as a MaximInterface::WriteMessage.
IanBenzMaxim 0:f77ad7f72d04 107 class WriteMessageDelegateWrapper
IanBenzMaxim 0:f77ad7f72d04 108 : public DelegateWrapper<void(System::String ^)> {
IanBenzMaxim 0:f77ad7f72d04 109 public:
IanBenzMaxim 0:f77ad7f72d04 110 WriteMessageDelegateWrapper(Delegate ^ target = nullptr)
IanBenzMaxim 0:f77ad7f72d04 111 : DelegateWrapper(target) {}
IanBenzMaxim 0:f77ad7f72d04 112
IanBenzMaxim 0:f77ad7f72d04 113 void operator()(const std::string & arg) const {
IanBenzMaxim 0:f77ad7f72d04 114 target()(msclr::interop::marshal_as<System::String ^>(arg));
IanBenzMaxim 0:f77ad7f72d04 115 }
IanBenzMaxim 0:f77ad7f72d04 116 };
IanBenzMaxim 0:f77ad7f72d04 117
IanBenzMaxim 0:f77ad7f72d04 118 } // namespace MaximInterface