MessageBuilderDiagnostics.h

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//
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#pragma once
 
#include <type_traits>
 
#include <OnixS/CME/MDH/ABI.h>
#include <OnixS/CME/MDH/Messaging.h>
#include <OnixS/CME/MDH/testing/MessageHolder.h>
 
ONIXS_CME_MDH_TESTING_NAMESPACE_BEGIN
 
// Explicit deleted overloads keep rvalue-holder detection reliable on legacy MSVC
// and provide a focused diagnostic at direct message-builder call sites.

namespace details
{
    template <typename...>
    struct MessageHolderDiagnosticVoid
    {
        using Type = void;
    };
 
    template <typename Holder, typename = void>
    struct IsMessageHolder : std::false_type
    {
    };
 
    template <typename Holder>
    struct IsMessageHolder<Holder, typename MessageHolderDiagnosticVoid<typename Holder::MessageHolderBase>::Type>
        : std::is_base_of<typename Holder::MessageHolderBase, Holder>
    {
    };
 
    template <typename Holder>
    using EnableRvalueMessageHolderDiagnostic = typename std::enable_if<
        !std::is_lvalue_reference<Holder>::value &&
            !std::is_const<typename std::remove_reference<Holder>::type>::value &&
            IsMessageHolder<typename std::remove_cv<typename std::remove_reference<Holder>::type>::type>::value,
        void>::type;
}

template <typename Holder, typename... Arguments>
auto initialize(Holder&&, Arguments&&...) -> details::EnableRvalueMessageHolderDiagnostic<Holder> = delete;

template <Messaging::SecurityUpdateAction::Enum, typename Holder, typename... Arguments>
auto initialize(Holder&&, Arguments&&...) -> details::EnableRvalueMessageHolderDiagnostic<Holder> = delete;

template <typename Holder, typename... Arguments>
auto addEntry(Holder&&, Arguments&&...) -> details::EnableRvalueMessageHolderDiagnostic<Holder> = delete;

template <Messaging::UpdateAction::Enum, typename Holder, typename... Arguments>
auto addEntry(Holder&&, Arguments&&...) -> details::EnableRvalueMessageHolderDiagnostic<Holder> = delete;

template <Messaging::UpdateAction::Enum, typename Holder, typename Range, typename Projection>
auto addEntries(Holder&&, Range&&, Projection&&) -> details::EnableRvalueMessageHolderDiagnostic<Holder> = delete;

template <typename Holder, typename... Arguments>
auto addOrderIdEntry(Holder&&, Arguments&&...) -> details::EnableRvalueMessageHolderDiagnostic<Holder> = delete;

template <Messaging::OrderUpdateAction::Enum, typename Holder, typename... Arguments>
auto addOrderIdEntry(Holder&&, Arguments&&...) -> details::EnableRvalueMessageHolderDiagnostic<Holder> = delete;

template <typename Holder, typename... Arguments>
auto addQuoteEntry(Holder&&, Arguments&&...) -> details::EnableRvalueMessageHolderDiagnostic<Holder> = delete;
 
ONIXS_CME_MDH_TESTING_NAMESPACE_END