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Reduce the code size of generated consume methods by skipping casts when the type is already a match #1448

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Merged
dmachaj merged 1 commit into from
Nov 12, 2024
Merged

Reduce the code size of generated consume methods by skipping casts when the type is already a match #1448

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52 changes: 40 additions & 12 deletions cppwinrt/code_writers.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1135,21 +1135,37 @@ namespace cppwinrt
// immediately while preserving the error code and local variables.
format = R"( template <typename D%> auto consume_%<D%>::%(%) const noexcept
{%
auto const& castedResult = static_cast<% const&>(static_cast<D const&>(*this));
auto const abiType = *(abi_t<%>**)&castedResult;
check_cast_result(abiType);
abiType->%(%);%
if constexpr (!std::is_same_v<D, %>)
{
auto const& castedResult = static_cast<% const&>(static_cast<D const&>(*this));
auto const abiType = *(abi_t<%>**)&castedResult;
check_cast_result(abiType);
abiType->%(%);
}
else
{
auto const abiType = *(abi_t<%>**)this;
abiType->%(%);
}%
}
)";
}
else
{
format = R"( template <typename D%> auto consume_%<D%>::%(%) const noexcept
{%
auto const& castedResult = static_cast<% const&>(static_cast<D const&>(*this));
auto const abiType = *(abi_t<%>**)&castedResult;
check_cast_result(abiType);
WINRT_VERIFY_(0, abiType->%(%));%
if constexpr (!std::is_same_v<D, %>)
{
auto const& castedResult = static_cast<% const&>(static_cast<D const&>(*this));
auto const abiType = *(abi_t<%>**)&castedResult;
check_cast_result(abiType);
WINRT_VERIFY_(0, abiType->%(%));
}
else
{
auto const abiType = *(abi_t<%>**)this;
WINRT_VERIFY_(0, abiType->%(%));
}%
}
)";
}
Expand All @@ -1158,10 +1174,18 @@ namespace cppwinrt
{
format = R"( template <typename D%> auto consume_%<D%>::%(%) const
{%
auto const& castedResult = static_cast<% const&>(static_cast<D const&>(*this));
auto const abiType = *(abi_t<%>**)&castedResult;
check_cast_result(abiType);
check_hresult(abiType->%(%));%
if constexpr (!std::is_same_v<D, %>)
{
auto const& castedResult = static_cast<% const&>(static_cast<D const&>(*this));
auto const abiType = *(abi_t<%>**)&castedResult;
check_cast_result(abiType);
check_hresult(abiType->%(%));
}
else
{
auto const abiType = *(abi_t<%>**)this;
check_hresult(abiType->%(%));
}%
}
)";
}
Expand All @@ -1175,6 +1199,10 @@ namespace cppwinrt
bind<write_consume_return_type>(signature, false),
type,
type,
type,
get_abi_name(method),
bind<write_abi_args>(signature),
type,
get_abi_name(method),
bind<write_abi_args>(signature),
bind<write_consume_return_statement>(signature));
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3 changes: 1 addition & 2 deletions strings/base_error.h
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Original file line number Diff line number Diff line change
Expand Up @@ -539,8 +539,7 @@ namespace winrt::impl
return result;
}

template <typename T>
WINRT_IMPL_NOINLINE void check_cast_result(T* from, winrt::impl::slim_source_location const& sourceInformation = winrt::impl::slim_source_location::current())
inline WINRT_IMPL_NOINLINE void check_cast_result(void* from, winrt::impl::slim_source_location const& sourceInformation = winrt::impl::slim_source_location::current())
{
if (!from)
{
Expand Down
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