PassDescriptor.hpp

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#ifndef DW_FRAMEWORK_PASSDESCRIPTOR_HPP_
#define DW_FRAMEWORK_PASSDESCRIPTOR_HPP_
 
#include <dw/core/base/Types.h>
#include <dwshared/dwfoundation/dw/core/container/StringView.hpp>
 
#include <array>
#include <cstddef>
#include <tuple>
#include <type_traits>
#include <utility>
 
namespace dw
{
namespace framework
{
 
template <typename... Args>
// coverity[autosar_cpp14_a2_10_5_violation] FP: nvbugs/3907242
constexpr auto describePassCollection(const Args&&... args) -> std::tuple<Args...>
{
    return std::make_tuple(std::forward<const Args>(args)...);
}
 
template <size_t NumberOfDependencies>
struct PassDescriptorT
{
    dw::core::StringView name;
    dwProcessorType processorType;
    bool hasDependencies;
    std::array<dw::core::StringView, NumberOfDependencies> dependencies;
 
    constexpr PassDescriptorT(dw::core::StringView&& name_, dwProcessorType processorType_)
        : name{std::move(name_)}
        , processorType{std::move(processorType_)}
        , hasDependencies{false}
        , dependencies{}
    {
        static_assert(NumberOfDependencies == 0, "PassDescriptorT constructor without dependencies only available with NumberOfDependencies == 0");
    }
 
    constexpr PassDescriptorT(dw::core::StringView&& name_, dwProcessorType processorType_, std::array<dw::core::StringView, NumberOfDependencies>&& dependencies_)
        : name{std::move(name_)}
        , processorType{std::move(processorType_)}
        , hasDependencies{true}
        , dependencies{std::move(dependencies_)}
    {
    }
};
 
constexpr PassDescriptorT<0> describePass(
    dw::core::StringView&& name, dwProcessorType processorType)
{
    return PassDescriptorT<0>(
        std::move(name),
        std::move(processorType));
}
 
// Overloaded functions are provided for ease of use
template <typename DependenciesT>
// coverity[autosar_cpp14_a2_10_5_violation]
constexpr auto describePass(
    dw::core::StringView&& name, dwProcessorType processorType, DependenciesT&& dependencies) -> PassDescriptorT<std::tuple_size<DependenciesT>::value>
{
    return PassDescriptorT<std::tuple_size<DependenciesT>::value>(
        std::move(name),
        std::move(processorType),
        std::move(dependencies));
}
 
template <typename... Args>
// coverity[autosar_cpp14_a2_10_5_violation] FP: nvbugs/3907242
constexpr auto describePassDependencies(const Args&&... args) -> std::array<dw::core::StringView, sizeof...(Args)>
{
    return {std::forward<const Args>(args)...};
}
 
template <typename Node>
// coverity[autosar_cpp14_a2_10_5_violation] FP: nvbugs/3907242
// coverity[autosar_cpp14_a7_1_5_violation] RFD Pending: TID-2201
constexpr auto describeNodePasses()
{
    return Node::describePasses();
}
 
template <typename Node>
// coverity[autosar_cpp14_a2_10_5_violation] FP: nvbugs/3907242
constexpr std::size_t passSize()
{
    return std::tuple_size<decltype(describeNodePasses<Node>())>::value;
}
 
// Overloaded functions provide the same functionality for different argument types
template <typename Node>
// coverity[autosar_cpp14_a2_10_5_violation]
constexpr bool isValidPass(std::size_t passID)
{
    return passID < passSize<Node>();
}
 
namespace detail
{
 
// LCOV_EXCL_START no coverage data for compile time evaluated function
template <
    typename Node, size_t Index,
    typename std::enable_if_t<Index == passSize<Node>(), void>* = nullptr>
// coverity[autosar_cpp14_a2_10_5_violation] FP: nvbugs/3907242
constexpr std::size_t passIndex(dw::core::StringView identifier)
{
    static_cast<void>(identifier);
    // coverity[autosar_cpp14_a5_1_1_violation] RFD Accepted: TID-2056
    return 0U;
}
// LCOV_EXCL_STOP
 
template <
    typename Node, size_t Index,
    typename std::enable_if_t<Index<passSize<Node>(), void>* = nullptr>
    // coverity[autosar_cpp14_a2_10_5_violation] FP: nvbugs/3907242
    constexpr std::size_t passIndex(dw::core::StringView identifier)
{
    constexpr dw::core::StringView name{std::get<Index>(describeNodePasses<Node>()).name};
    if (name == identifier)
    {
        // coverity[autosar_cpp14_a5_1_1_violation] RFD Accepted: TID-2056
        return 0U;
    }
    // coverity[autosar_cpp14_a5_1_1_violation] RFD Accepted: TID-2056
    return 1U + passIndex<Node, Index + 1>(identifier);
}
 
} // namespace detail
 
template <typename Node>
// coverity[autosar_cpp14_a2_10_5_violation] RFD Pending: TID-2053
constexpr size_t passIndex(dw::core::StringView identifier)
{
    return detail::passIndex<Node, 0>(identifier);
}
 
template <typename Node>
// coverity[autosar_cpp14_a2_10_5_violation] FP: nvbugs/3907242
constexpr bool isValidPass(dw::core::StringView identifier)
{
    constexpr size_t index = passIndex<Node>(identifier);
    return isValidPass<Node>(index);
}
 
template <typename Node, size_t Index>
// coverity[autosar_cpp14_a2_10_5_violation] FP: nvbugs/3907242
constexpr dw::core::StringView passName()
{
    return std::get<Index>(describeNodePasses<Node>()).name;
}
 
template <typename Node, size_t Index>
// coverity[autosar_cpp14_a2_10_5_violation] FP: nvbugs/3907242
constexpr dwProcessorType passProcessorType()
{
    return std::get<Index>(describeNodePasses<Node>()).processorType;
}
 
template <typename Node, size_t Index>
// coverity[autosar_cpp14_a2_10_5_violation] FP: nvbugs/3907242
constexpr bool hasPassDependencies()
{
    return std::get<Index>(describeNodePasses<Node>()).hasDependencies;
}
 
template <typename Node, size_t Index>
// coverity[autosar_cpp14_a2_10_5_violation] FP: nvbugs/3907242
// coverity[autosar_cpp14_a7_1_5_violation] RFD Pending: TID-2201
constexpr auto passDependencies()
{
    return std::get<Index>(describeNodePasses<Node>()).dependencies;
}
 
} // namespace framework
} // namespace dw
 
#endif // DW_FRAMEWORK_PASSDESCRIPTOR_HPP_