105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
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// Copyright satoren
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#pragma once
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#include "kaguya/detail/lua_function_def.hpp"
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#include "kaguya/detail/lua_table_def.hpp"
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namespace kaguya {
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class LuaRef;
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class LuaTable;
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template <typename KEY> class TableKeyReferenceProxy;
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class MemberFunctionBinder;
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namespace detail {
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template <typename Derived>
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class LuaVariantImpl : public LuaTableImpl<Derived>,
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public LuaTableOrUserDataImpl<Derived>,
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public detail::LuaFunctionImpl<Derived>,
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public detail::LuaThreadImpl<Derived>,
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public LuaBasicTypeFunctions<Derived> {
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private:
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lua_State *state_() const {
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return static_cast<const Derived *>(this)->state();
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}
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int pushStackIndex_(lua_State *state) const {
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return static_cast<const Derived *>(this)->pushStackIndex(state);
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}
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public:
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using LuaBasicTypeFunctions<Derived>::type;
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using LuaBasicTypeFunctions<Derived>::typeName;
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/// @brief deprecated, use isType instead.
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template <typename T> bool typeTest() const { return isType<T>(); }
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/// @brief deprecated, use isConvertible instead.
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template <typename T> bool weakTypeTest() const { return isConvertible<T>(); }
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/// @brief is type test
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template <typename T> bool isType() const {
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lua_State *state = state_();
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util::ScopedSavedStack save(state);
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return lua_type_traits<T>::strictCheckType(state, pushStackIndex_(state));
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}
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template <typename T> bool isConvertible() const {
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lua_State *state = state_();
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util::ScopedSavedStack save(state);
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return lua_type_traits<T>::checkType(state, pushStackIndex_(state));
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}
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template <typename T> typename lua_type_traits<T>::get_type get() const {
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lua_State *state = state_();
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util::ScopedSavedStack save(state);
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return lua_type_traits<T>::get(state, state ? pushStackIndex_(state) : 0);
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}
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template <typename T, typename U>
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typename lua_type_traits<T>::get_type value_or(U v) const {
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lua_State *state = state_();
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util::ScopedSavedStack save(state);
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return lua_type_traits<optional<T> >::get(
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state, state ? pushStackIndex_(state) : 0)
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.value_or(v);
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}
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// deprecated. use get<kaguya::optional<T> >() instead;
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template <typename T>
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typename lua_type_traits<T>::get_type
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get(bool &was_valid, bool allow_convertible = true) const {
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lua_State *state = state_();
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util::ScopedSavedStack save(state);
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int stackindex = pushStackIndex_(state);
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if (allow_convertible) {
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was_valid = lua_type_traits<T>::checkType(state, stackindex);
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} else {
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was_valid = lua_type_traits<T>::strictCheckType(state, stackindex);
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}
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if (was_valid) {
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return lua_type_traits<T>::get(state, stackindex);
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} else {
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return T();
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}
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}
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template <typename T> operator T() const { return get<T>(); }
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#if KAGUYA_USE_CPP11
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template <class... Args> FunctionResults operator()(Args &&... args);
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#else
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inline FunctionResults operator()();
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#define KAGUYA_OP_FN_DEF(N) \
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template <KAGUYA_PP_TEMPLATE_DEF_REPEAT(N)> \
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inline FunctionResults operator()(KAGUYA_PP_ARG_CR_DEF_REPEAT(N));
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KAGUYA_PP_REPEAT_DEF(KAGUYA_FUNCTION_MAX_ARGS, KAGUYA_OP_FN_DEF)
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#undef KAGUYA_OP_FN_DEF
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#endif
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};
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}
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}
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