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Use utempl loopholes impl instead custom

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sha512sum 2024-06-27 01:07:32 +00:00
parent 327bc969b8
commit 0d77aa7e3c
1 changed files with 16 additions and 68 deletions
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80
include/cserver/engine/components.hpp
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@ -2,6 +2,7 @@
#include <cserver/engine/basic/task_processor.hpp>
#include <cserver/engine/coroutine.hpp>
#include <utempl/utils.hpp>
#include <utempl/loopholes/counter.hpp>
namespace cserver {
@ -176,48 +177,6 @@ struct ServiceContext {
namespace impl {
namespace loopholes {
template <auto I>
struct Getter {
friend constexpr auto Magic(Getter<I>);
};
template <auto I, auto Value = 0>
struct Injector {
friend constexpr auto Magic(Getter<I>) {return Value;};
};
template <auto I, typename...>
concept Injected = requires{Magic(Getter<I>{});};
template <typename Tag, auto Value>
struct TagWithTalue {};
template <auto I = 0, typename Tag, typename... Ts, auto = Injector<TagWithTalue<Tag, I>{}>{}>
constexpr auto CounterImpl(...) {
return I;
};
template <auto I = 0, typename Tag, typename... Ts>
consteval auto CounterImpl(std::size_t arg) requires Injected<TagWithTalue<Tag, I>{}, Ts...> {
return CounterImpl<I + 1, Tag, Ts...>(arg);
};
template <
typename Tag,
typename... Ts,
auto R = CounterImpl<0, Tag, Ts...>(std::size_t{})
>
consteval auto Counter(auto...) {
return R;
};
} // namespace loopholes
template <typename Current, std::size_t I>
struct DependencyInfoKey {};
@ -257,8 +216,8 @@ public:
template <
utempl::ConstexprString name,
typename...,
std::size_t I = loopholes::Counter<Current, utempl::Wrapper<name>>(),
auto = loopholes::Injector<
std::size_t I = utempl::loopholes::Counter<Current, utempl::Wrapper<name>>(),
auto = utempl::loopholes::Injector<
DependencyInfoKey<
Current,
I
@ -272,8 +231,8 @@ public:
template <
typename T,
typename...,
std::size_t I = loopholes::Counter<Current, utempl::Wrapper<FindComponentName<T>>>(),
auto = loopholes::Injector<
std::size_t I = utempl::loopholes::Counter<Current, utempl::Wrapper<FindComponentName<T>>>(),
auto = utempl::loopholes::Injector<
DependencyInfoKey<
Current,
I
@ -283,30 +242,19 @@ public:
>
static constexpr auto FindComponent() -> T&;
template <std::size_t I = 0, utempl::ConstexprString... names>
static consteval auto GetDependencies() requires (I == 0 ||
requires {Magic(loopholes::Getter<DependencyInfoKey<Current, I>{}>{});}) {
if constexpr(I == 0 && !requires {Magic(loopholes::Getter<DependencyInfoKey<Current, I>{}>{});}) {
template <auto = 0>
static consteval auto GetDependencies() {
return [](auto... is) {
return ([&]{
constexpr auto response = Magic(utempl::loopholes::Getter<DependencyInfoKey<Current, is>{}>{});
if constexpr(response == kBasicTaskProcessorName) {
return utempl::Tuple{};
} else {
if constexpr(requires{GetDependencies<I + 1, names...>();}) {
constexpr auto name = Magic(loopholes::Getter<DependencyInfoKey<Current, I>{}>{});
if constexpr(name == kBasicTaskProcessorName) {
return GetDependencies<I + 1, names...>();
} else {
return GetDependencies<I + 1, names..., name>();
return utempl::Tuple{response};
};
} else {
constexpr auto name = Magic(loopholes::Getter<DependencyInfoKey<Current, I>{}>{});
if constexpr(static_cast<std::string_view>(name) == kBasicTaskProcessorName) {
return utempl::Tuple{names...};
} else {
return utempl::Tuple{names..., name};
}() + ... + utempl::Tuple{});
} | utempl::kSeq<utempl::loopholes::Counter<Current>()>;
};
};
};
};
template <utempl::ConstexprString name>
static inline consteval auto Inject() {
Ignore<decltype(Use<Current, utempl::Wrapper<name>{}, DependencyInfoInjector<Current, config, Ts...>{}>())>();