Просмотр кода страницы Interface implementation base

{{DISPLAYTITLE:interface_implementation_base}}

{{class|interface_implementation_base|lang=cpp}}

{{example_begin}}
<source lang="cpp">
enum class SomeIdentifierType
{
    Id1, Id2, Id3, Id4
};

struct I1:InterfaceBase
{
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION AddRef() const noexcept = 0;
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION IsInterfaceAvailable(SomeIdentifierType id) const noexcept = 0;
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION RepresentAs(SomeIdentifierType id, void** ppInterface) noexcept = 0;
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION CustomMethod() noexcept = 0;
};

struct I2:I1
{
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION CustomMethod2() noexcept = 0;
};

struct I3:I1
{
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION CustomMethod3() noexcept = 0;
};

struct I4:I2
{
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION CustomMethod4() noexcept = 0;
};

struct SomeImplementation: public interface_implementation_base<
    SomeImplementation, disposal_policy_delete, ref_ctr_policy_mt, conversion_policy_map<SomeIdentifierType,
        conversion_map_entity<SomeIdentifierType, SomeIdentifierType::Id1, compound_conversion_sequence<implicit_conversion_sequence<I1*>, static_conversion_sequence<I2*, I4*>>>,
        conversion_map_entity<SomeIdentifierType, SomeIdentifierType::Id2, static_conversion_sequence<I2*>>,
        conversion_map_entity<SomeIdentifierType, SomeIdentifierType::Id3, static_conversion_sequence<I3*>>
    >, I3, I4>
{
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION CustomMethod() noexcept
    {
        std::cout << "SomeImplementation::CustomMethod\n";
        return CHSVERROR_SUCCESS;
    }
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION CustomMethod2() noexcept
    {
        std::cout << "SomeImplementation::CustomMethod2\n";
        return CHSVERROR_SUCCESS;
    }
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION CustomMethod3() noexcept
    {
        std::cout << "SomeImplementation::CustomMethod3\n";
        return CHSVERROR_SUCCESS;
    }
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION CustomMethod4() noexcept
    {
        std::cout << "SomeImplementation::CustomMethod3\n";
        return CHSVERROR_SUCCESS;
    }
    ~SomeImplementation()
    {
        std::cout << "SomeImplementation::~SomeImplementation\n";
    }
};

struct SomeImplementation2: public interface_implementation_base<
    SomeImplementation, disposal_policy_delete, ref_ctr_policy_mt, 
    CONVERSION_POLICY_MAP(SomeIdentifierType,
        CONVERSION_MAP_ENTITY(SomeIdentifierType::Id1, compound_conversion_sequence<implicit_conversion_sequence<I1*>, static_conversion_sequence<I2*, I4*>>),
        CONVERSION_MAP_ENTITY(SomeIdentifierType::Id2, static_conversion_sequence<I2*>),
        CONVERSION_MAP_ENTITY(SomeIdentifierType::Id3, static_conversion_sequence<I3*>)),
    I3, I4>
{
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION CustomMethod() noexcept
    {
        std::cout << "SomeImplementation2::CustomMethod\n";
        return CHSVERROR_SUCCESS;
    }
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION CustomMethod2() noexcept
    {
        std::cout << "SomeImplementation2::CustomMethod2\n";
        return CHSVERROR_SUCCESS;
    }
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION CustomMethod3() noexcept
    {
        std::cout << "SomeImplementation2::CustomMethod3\n";
        return CHSVERROR_SUCCESS;
    }
    virtual return_code_t PLATFORM_NATIVE_CALLING_CONVENTION CustomMethod4() noexcept
    {
        std::cout << "SomeImplementation2::CustomMethod3\n";
        return CHSVERROR_SUCCESS;
    }
    ~SomeImplementation2()
    {
        std::cout << "SomeImplementation2::~SomeImplementation2\n";
    }
};

int main(int argc, char**)
{
    I1* pI1;
    I2* pI2;
    I3* pI3;

    pI2 = new SomeImplementation;
    pI2->CustomMethod2();
    pI2->RepresentAs(SomeIdentifierType::Id1, (void**) &pI1);
    pI2->Release();
    pI1->RepresentAs(SomeIdentifierType::Id3, (void**) &pI3);
    pI1->CustomMethod();
    pI3->CustomMethod3();
    pI1->Release();
    pI3->Release();

    pI2 = new SomeImplementation2;
    pI2->CustomMethod2();
    pI2->RepresentAs(SomeIdentifierType::Id1, (void**) &pI1);
    pI2->Release();
    pI1->RepresentAs(SomeIdentifierType::Id3, (void**) &pI3);
    pI1->CustomMethod();
    pI3->CustomMethod3();
    pI1->Release();
    pI3->Release();

    return 0;
}
</source>
{{example_end}}