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https://github.com/geode-sdk/geode.git
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240 lines
11 KiB
C++
240 lines
11 KiB
C++
#pragma once
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#include "AsStaticFunction.hpp"
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#include "Field.hpp"
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#include "IDManager.hpp"
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#include <Geode/loader/Loader.hpp>
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#include <Geode/loader/Mod.hpp>
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#include <iostream>
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#include <tulip/TulipHook.hpp>
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#define GEODE_APPLY_MODIFY_FOR_FUNCTION(AddressIndex_, Convention_, ClassName_, FunctionName_, ...) \
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do { \
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if constexpr (Unique::different< \
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Resolve<__VA_ARGS__>::func(&Base::FunctionName_), \
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Resolve<__VA_ARGS__>::func(&Derived::FunctionName_)>()) { \
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if (address<AddressIndex_>() == 0) { \
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log::error( \
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"Address of {} returned nullptr, can't hook", #ClassName_ "::" #FunctionName_ \
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); \
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break; \
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} \
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auto hook = Hook::create( \
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Mod::get(), \
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reinterpret_cast<void*>(address<AddressIndex_>()), \
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AsStaticFunction_##FunctionName_< \
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Derived, \
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decltype(Resolve<__VA_ARGS__>::func(&Derived::FunctionName_))>::value, \
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#ClassName_ "::" #FunctionName_, \
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tulip::hook::TulipConvention::Convention_ \
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); \
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this->m_hooks[#ClassName_ "::" #FunctionName_] = hook; \
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} \
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} while (0);
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#define GEODE_APPLY_MODIFY_FOR_CONSTRUCTOR(AddressIndex_, Convention_, ClassName_, ...) \
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do { \
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if constexpr (HasConstructor<Derived>) { \
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auto hook = Hook::create( \
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Mod::get(), \
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reinterpret_cast<void*>(address<AddressIndex_>()), \
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AsStaticFunction_##constructor< \
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Derived, \
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decltype(Resolve<__VA_ARGS__>::func(&Derived::constructor))>::value, \
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#ClassName_ "::" #ClassName_, \
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tulip::hook::TulipConvention::Convention_ \
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); \
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this->m_hooks[#ClassName_ "::" #ClassName_] = hook; \
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} \
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} while (0);
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#define GEODE_APPLY_MODIFY_FOR_DESTRUCTOR(AddressIndex_, Convention_, ClassName_) \
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do { \
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if constexpr (HasDestructor<Derived>) { \
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auto hook = Hook::create( \
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Mod::get(), \
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reinterpret_cast<void*>(address<AddressIndex_>()), \
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AsStaticFunction_##destructor<Derived, decltype(Resolve<>::func(&Derived::destructor))>::value, \
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#ClassName_ "::" #ClassName_, \
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tulip::hook::TulipConvention::Convention_ \
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); \
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this->m_hooks[#ClassName_ "::" #ClassName_] = hook; \
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} \
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} while (0);
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namespace geode::modifier {
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template <class Derived, class Base>
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class ModifyDerive;
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template <class ModifyDerived>
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class ModifyBase {
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public:
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std::map<std::string, Hook*> m_hooks;
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Result<Hook*> getHook(std::string const& name) {
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if (m_hooks.find(name) == m_hooks.end()) {
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return Err("Hook not in this modify");
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}
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return Ok(m_hooks[name]);
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}
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Result<> setHookPriority(std::string const& name, int32_t priority) {
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auto res = this->getHook(name);
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if (!res) {
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return Err(res.unwrapErr());
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}
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res.unwrap()->setPriority(priority);
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return Ok();
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}
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// unordered_map<handles> idea
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ModifyBase() {
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// i really dont want to recompile codegen
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auto test = static_cast<ModifyDerived*>(this);
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test->ModifyDerived::apply();
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ModifyDerived::Derived::onModify(*this);
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for (auto& [uuid, hook] : m_hooks) {
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auto res = Mod::get()->addHook(hook);
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if (!res) {
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log::error("Failed to add hook {}: {}", hook->getDisplayName(), res.error());
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}
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}
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}
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virtual void apply() {}
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template <class, class>
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friend class ModifyDerive;
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// explicit Modify(Property property) idea
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};
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template <class Derived, class Base>
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class ModifyDerive {
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public:
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ModifyDerive() {
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static_assert(
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alwaysFalse<Derived>,
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"Modified class not recognized, please include <Geode/modify/ClassName.hpp> to be "
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"able to use it."
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);
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}
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};
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}
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namespace geode {
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// The intellisense compiler is quite dumb, and will very often error on modify classes
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// with an error of "incomplete type is not allowed", despite not being an issue in actual compilation.
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// So as a workaround use the compiler defined "__INTELLISENSE__" macro, which gets set to 1 on the intellisense pass.
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// See https://learn.microsoft.com/en-us/cpp/preprocessor/predefined-macros?view=msvc-170#microsoft-specific-predefined-macros
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#if __INTELLISENSE__ != 1
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template <class Derived, class Base>
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class Modify : public Base {
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private:
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static inline modifier::ModifyDerive<Derived, Base> s_apply;
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// because for some reason we need it
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static inline auto s_applyRef = &Modify::s_apply;
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public:
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// abusing the internal stuff
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// basically we dont want modify to invoke base ctors and dtors
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// we already have utilities for these, which are ccdestructor
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// and the cutoff constructor
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Modify() : Base(CutoffConstructor, sizeof(Base)) {}
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~Modify() {
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cocos2d::CCDestructor::lock(this) = true;
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}
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Modify(Modify const&) = delete;
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Modify(Modify&&) = delete;
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Modify& operator=(Modify const&) = delete;
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Modify& operator=(Modify&&) = delete;
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modifier::FieldIntermediate<Derived, Base> m_fields;
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static void onModify(auto& self) {}
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};
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#else
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template <class Derived, class Base>
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class Modify : public Base {
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public:
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modifier::FieldIntermediate<Derived, Base> m_fields;
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};
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#endif
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}
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/**
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* Main class implementation, it has the structure
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*
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* class hook0Dummy;
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* template<typename>
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* struct hook0 {};
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* namespace {
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* struct hook0Parent {};
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* }
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* template<>
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* struct GEODE_HIDDEN hook0<hook0Parent> : Modify<hook0<hook0Parent>, MenuLayer> {
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* // code stuff idk
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* };
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*
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* I tried to make the macro as verbose as it can be but
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* I am bad at this stuff
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*/
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#if __INTELLISENSE__ != 1
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#define GEODE_MODIFY_DECLARE_ANONYMOUS(base, derived) \
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derived##Dummy; \
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template <class> \
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struct derived {}; \
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namespace { \
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struct derived##Parent {}; \
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} \
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template <> \
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struct GEODE_HIDDEN derived<derived##Parent> : geode::Modify<derived<derived##Parent>, base>
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#define GEODE_MODIFY_DECLARE(base, derived) \
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derived##Dummy; \
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struct GEODE_HIDDEN derived : geode::Modify<derived, base>
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#else
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// Simplify the modify macro for intellisense, to hopefully help perfomance a bit
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#define GEODE_MODIFY_DECLARE(base, derived) \
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derived##Dummy; \
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struct derived : geode::Modify<derived, base>
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#define GEODE_MODIFY_DECLARE_ANONYMOUS(base, derived) GEODE_MODIFY_DECLARE(base, derived)
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#endif
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#define GEODE_MODIFY_REDIRECT4(base, derived) GEODE_MODIFY_DECLARE(base, derived)
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#define GEODE_MODIFY_REDIRECT3(base, derived) GEODE_MODIFY_DECLARE_ANONYMOUS(base, derived)
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#define GEODE_MODIFY_REDIRECT2(base) GEODE_MODIFY_REDIRECT3(base, GEODE_CONCAT(hook, __LINE__))
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#define GEODE_MODIFY_REDIRECT1(base) GEODE_MODIFY_REDIRECT2(base)
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/**
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* Interfaces for the class implementation
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*
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* class $modify(MenuLayer) {};
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* class $modify(MyMenuLayerInterface, MenuLayer) {};
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*/
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#define GEODE_CRTP1(base) GEODE_MODIFY_REDIRECT1(base)
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#define GEODE_CRTP2(derived, base) GEODE_MODIFY_REDIRECT4(base, derived)
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#define $modify(...) \
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GEODE_INVOKE(GEODE_CONCAT(GEODE_CRTP, GEODE_NUMBER_OF_ARGS(__VA_ARGS__)), __VA_ARGS__)
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#define $(...) $modify(__VA_ARGS__)
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/**
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* Get current hook class without needing to name it.
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* Useful for callbacks
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* this is a camila moment if you ask me
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*/
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#define $cls std::remove_pointer<decltype(this)>::type
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