aboutsummaryrefslogtreecommitdiffstats
path: root/deps/sol2/include/sol/reference.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'deps/sol2/include/sol/reference.hpp')
-rw-r--r--deps/sol2/include/sol/reference.hpp749
1 files changed, 0 insertions, 749 deletions
diff --git a/deps/sol2/include/sol/reference.hpp b/deps/sol2/include/sol/reference.hpp
deleted file mode 100644
index 3859bea..0000000
--- a/deps/sol2/include/sol/reference.hpp
+++ /dev/null
@@ -1,749 +0,0 @@
-// sol3
-
-// The MIT License (MIT)
-
-// Copyright (c) 2013-2019 Rapptz, ThePhD and contributors
-
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-// the Software, and to permit persons to whom the Software is furnished to do so,
-// subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-#ifndef SOL_REFERENCE_HPP
-#define SOL_REFERENCE_HPP
-
-#include "types.hpp"
-#include "stack_reference.hpp"
-
-#include <functional>
-
-namespace sol {
- namespace detail {
- inline const char (&default_main_thread_name())[9] {
- static const char name[9] = "sol.\xF0\x9F\x93\x8C";
- return name;
- }
- } // namespace detail
-
- namespace stack {
- inline void remove(lua_State* L, int rawindex, int count) {
- if (count < 1)
- return;
- int top = lua_gettop(L);
- if (top < 1) {
- return;
- }
- if (rawindex == -count || top == rawindex) {
- // Slice them right off the top
- lua_pop(L, static_cast<int>(count));
- return;
- }
-
- // Remove each item one at a time using stack operations
- // Probably slower, maybe, haven't benchmarked,
- // but necessary
- int index = lua_absindex(L, rawindex);
- if (index < 0) {
- index = lua_gettop(L) + (index + 1);
- }
- int last = index + count;
- for (int i = index; i < last; ++i) {
- lua_remove(L, index);
- }
- }
-
- struct push_popper_at {
- lua_State* L;
- int index;
- int count;
- push_popper_at(lua_State* luastate, int index = -1, int count = 1)
- : L(luastate), index(index), count(count) {
- }
- ~push_popper_at() {
- remove(L, index, count);
- }
- };
-
- template <bool top_level>
- struct push_popper_n {
- lua_State* L;
- int t;
- push_popper_n(lua_State* luastate, int x)
- : L(luastate), t(x) {
- }
- push_popper_n(const push_popper_n&) = delete;
- push_popper_n(push_popper_n&&) = default;
- push_popper_n& operator=(const push_popper_n&) = delete;
- push_popper_n& operator=(push_popper_n&&) = default;
- ~push_popper_n() {
- lua_pop(L, t);
- }
- };
-
- template <>
- struct push_popper_n<true> {
- push_popper_n(lua_State*, int) {
- }
- };
-
- template <bool, typename T, typename = void>
- struct push_popper {
- using Tu = meta::unqualified_t<T>;
- T t;
- int idx;
-
- push_popper(T x)
- : t(x), idx(lua_absindex(t.lua_state(), -t.push())) {
-
- }
-
- int index_of(const Tu&) {
- return idx;
- }
-
- ~push_popper() {
- t.pop();
- }
- };
-
- template <typename T, typename C>
- struct push_popper<true, T, C> {
- using Tu = meta::unqualified_t<T>;
-
- push_popper(T) {
- }
-
- int index_of(const Tu&) {
- return -1;
- }
-
- ~push_popper() {
- }
- };
-
- template <typename T>
- struct push_popper<false, T, std::enable_if_t<is_stack_based_v<meta::unqualified_t<T>>>> {
- using Tu = meta::unqualified_t<T>;
-
- push_popper(T) {
- }
-
- int index_of(const Tu& r) {
- return r.stack_index();
- }
-
- ~push_popper() {
- }
- };
-
- template <bool top_level = false, typename T>
- push_popper<top_level, T> push_pop(T&& x) {
- return push_popper<top_level, T>(std::forward<T>(x));
- }
-
- template <typename T>
- push_popper_at push_pop_at(T&& x) {
- int c = x.push();
- lua_State* L = x.lua_state();
- return push_popper_at(L, lua_absindex(L, -c), c);
- }
-
- template <bool top_level = false>
- push_popper_n<top_level> pop_n(lua_State* L, int x) {
- return push_popper_n<top_level>(L, x);
- }
- } // namespace stack
-
- inline lua_State* main_thread(lua_State* L, lua_State* backup_if_unsupported = nullptr) {
-#if SOL_LUA_VERSION < 502
- if (L == nullptr)
- return backup_if_unsupported;
- lua_getglobal(L, detail::default_main_thread_name());
- auto pp = stack::pop_n(L, 1);
- if (type_of(L, -1) == type::thread) {
- return lua_tothread(L, -1);
- }
- return backup_if_unsupported;
-#else
- if (L == nullptr)
- return backup_if_unsupported;
- lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_MAINTHREAD);
- lua_State* Lmain = lua_tothread(L, -1);
- lua_pop(L, 1);
- return Lmain;
-#endif // Lua 5.2+ has the main thread unqualified_getter
- }
-
- namespace detail {
- struct global_tag {
- } const global_ {};
- struct no_safety_tag {
- } const no_safety {};
-
- template <bool b>
- inline lua_State* pick_main_thread(lua_State* L, lua_State* backup_if_unsupported = nullptr) {
- (void)L;
- (void)backup_if_unsupported;
- if (b) {
- return main_thread(L, backup_if_unsupported);
- }
- return L;
- }
- } // namespace detail
-
- class stateless_reference {
- private:
- template <bool o_main_only>
- friend class basic_reference;
-
- int ref = LUA_NOREF;
-
- int copy(lua_State* L) const noexcept {
- if (ref == LUA_NOREF)
- return LUA_NOREF;
- push(L);
- return luaL_ref(L, LUA_REGISTRYINDEX);
- }
-
- lua_State* copy_assign(lua_State* L, lua_State* rL, const stateless_reference& r) {
- if (valid(L)) {
- deref(L);
- }
- ref = r.copy(L);
- return rL;
- }
-
- lua_State* move_assign(lua_State* L, lua_State* rL, stateless_reference&& r) {
- if (valid(L)) {
- deref(L);
- }
- ref = r.ref;
- r.ref = LUA_NOREF;
- return rL;
- }
-
- protected:
- int stack_index () const noexcept {
- return -1;
- }
-
- stateless_reference(lua_State* L, detail::global_tag) noexcept {
-#if defined(SOL_SAFE_STACK_CHECK) && SOL_SAFE_STACK_CHECK
- luaL_checkstack(L, 1, "not enough Lua stack space to push this reference value");
-#endif // make sure stack doesn't overflow
- lua_pushglobaltable(L);
- ref = luaL_ref(L, LUA_REGISTRYINDEX);
- }
-
- stateless_reference(int raw_ref_index) noexcept : ref(raw_ref_index) {
- }
-
- public:
- stateless_reference() noexcept = default;
- stateless_reference(lua_nil_t) noexcept : stateless_reference() {
- }
- stateless_reference(const stack_reference& r) noexcept : stateless_reference(r.lua_state(), r.stack_index()) {
- }
- stateless_reference(stack_reference&& r) noexcept : stateless_reference(r.lua_state(), r.stack_index()) {
- }
- stateless_reference(lua_State* L, const stateless_reference& r) noexcept {
- if (r.ref == LUA_REFNIL) {
- ref = LUA_REFNIL;
- return;
- }
- if (r.ref == LUA_NOREF || L == nullptr) {
- ref = LUA_NOREF;
- return;
- }
- ref = r.copy(L);
- }
-
- stateless_reference(lua_State* L, stateless_reference&& r) noexcept {
- if (r.ref == LUA_REFNIL) {
- ref = LUA_REFNIL;
- return;
- }
- if (r.ref == LUA_NOREF || L == nullptr) {
- ref = LUA_NOREF;
- return;
- }
- ref = r.ref;
- r.ref = LUA_NOREF;
- }
-
- stateless_reference(lua_State* L, const stack_reference& r) noexcept {
- if (L == nullptr || r.lua_state() == nullptr || r.get_type() == type::none) {
- ref = LUA_NOREF;
- return;
- }
- if (r.get_type() == type::lua_nil) {
- ref = LUA_REFNIL;
- return;
- }
- if (L != r.lua_state() && !detail::xmovable(L, r.lua_state())) {
- return;
- }
- r.push(L);
- ref = luaL_ref(L, LUA_REGISTRYINDEX);
- }
-
- stateless_reference(lua_State* L, int index = -1) noexcept {
- // use L to stick with that state's execution stack
-#if defined(SOL_SAFE_STACK_CHECK) && SOL_SAFE_STACK_CHECK
- luaL_checkstack(L, 1, "not enough Lua stack space to push this reference value");
-#endif // make sure stack doesn't overflow
- lua_pushvalue(L, index);
- ref = luaL_ref(L, LUA_REGISTRYINDEX);
- }
- stateless_reference(lua_State* L, ref_index index) noexcept {
- lua_rawgeti(L, LUA_REGISTRYINDEX, index.index);
- ref = luaL_ref(L, LUA_REGISTRYINDEX);
- }
- stateless_reference(lua_State*, lua_nil_t) noexcept {
- }
-
- ~stateless_reference() noexcept = default;
-
- stateless_reference(const stateless_reference& o) noexcept = delete;
- stateless_reference& operator=(const stateless_reference& r) noexcept = delete;
-
- stateless_reference(stateless_reference&& o) noexcept
- : ref(o.ref) {
- o.ref = LUA_NOREF;
- }
-
- stateless_reference& operator=(stateless_reference&& o) noexcept {
- ref = o.ref;
- o.ref = LUA_NOREF;
- return *this;
- }
-
-
- int push(lua_State* L) const noexcept {
-#if defined(SOL_SAFE_STACK_CHECK) && SOL_SAFE_STACK_CHECK
- luaL_checkstack(L, 1, "not enough Lua stack space to push this reference value");
-#endif // make sure stack doesn't overflow
- lua_rawgeti(L, LUA_REGISTRYINDEX, ref);
- return 1;
- }
-
- void pop(lua_State* L, int n = 1) const noexcept {
- lua_pop(L, n);
- }
-
- int registry_index() const noexcept {
- return ref;
- }
-
- bool valid(lua_State*) const noexcept {
- return !(ref == LUA_NOREF || ref == LUA_REFNIL);
- }
-
- const void* pointer(lua_State* L) const noexcept {
- int si = push(L);
- const void* vp = lua_topointer(L, -si);
- lua_pop(L, si);
- return vp;
- }
-
- type get_type(lua_State* L) const noexcept {
- int p = push(L);
- int result = lua_type(L, -1);
- pop(L, p);
- return static_cast<type>(result);
- }
-
- void abandon(lua_State* = nullptr) {
- ref = LUA_NOREF;
- }
-
- void deref(lua_State* L) const noexcept {
- luaL_unref(L, LUA_REGISTRYINDEX, ref);
- }
- };
-
- template <bool main_only = false>
- class basic_reference : public stateless_reference {
- private:
- template <bool o_main_only>
- friend class basic_reference;
- lua_State* luastate = nullptr; // non-owning
-
- template <bool r_main_only>
- void copy_assign(const basic_reference<r_main_only>& r) {
- if (valid()) {
- deref();
- }
- if (r.ref == LUA_REFNIL) {
- luastate = detail::pick_main_thread < main_only && !r_main_only > (r.lua_state(), r.lua_state());
- ref = LUA_REFNIL;
- return;
- }
- if (r.ref == LUA_NOREF) {
- luastate = r.luastate;
- ref = LUA_NOREF;
- return;
- }
- if (detail::xmovable(lua_state(), r.lua_state())) {
- r.push(lua_state());
- ref = luaL_ref(lua_state(), LUA_REGISTRYINDEX);
- return;
- }
- luastate = detail::pick_main_thread < main_only && !r_main_only > (r.lua_state(), r.lua_state());
- ref = r.copy();
- }
-
- template <bool r_main_only>
- void move_assign(basic_reference<r_main_only>&& r) {
- if (valid()) {
- deref();
- }
- if (r.ref == LUA_REFNIL) {
- luastate = detail::pick_main_thread < main_only && !r_main_only > (r.lua_state(), r.lua_state());
- ref = LUA_REFNIL;
- return;
- }
- if (r.ref == LUA_NOREF) {
- luastate = r.luastate;
- ref = LUA_NOREF;
- return;
- }
- if (detail::xmovable(lua_state(), r.lua_state())) {
- r.push(lua_state());
- ref = luaL_ref(lua_state(), LUA_REGISTRYINDEX);
- return;
- }
-
- luastate = detail::pick_main_thread < main_only && !r_main_only > (r.lua_state(), r.lua_state());
- ref = r.ref;
- r.ref = LUA_NOREF;
- r.luastate = nullptr;
- }
-
- protected:
- basic_reference(lua_State* L, detail::global_tag) noexcept
- : basic_reference(detail::pick_main_thread<main_only>(L, L), detail::global_, detail::global_) {
- }
-
- basic_reference(lua_State* L, detail::global_tag, detail::global_tag) noexcept
- : stateless_reference(L, detail::global_), luastate(L) {
- }
-
- basic_reference(lua_State* oL, const basic_reference<!main_only>& o) noexcept : stateless_reference(oL, o), luastate(oL) {
- }
-
- void deref() const noexcept {
- return stateless_reference::deref(lua_state());
- }
-
- int copy() const noexcept {
- return copy(lua_state());
- }
-
- int copy(lua_State* L) const noexcept {
- return stateless_reference::copy(L);
- }
-
- public:
- basic_reference() noexcept = default;
- basic_reference(lua_nil_t) noexcept
- : basic_reference() {
- }
- basic_reference(const stack_reference& r) noexcept
- : basic_reference(r.lua_state(), r.stack_index()) {
- }
- basic_reference(stack_reference&& r) noexcept
- : basic_reference(r.lua_state(), r.stack_index()) {
- }
- template <bool r_main_only>
- basic_reference(lua_State* L, const basic_reference<r_main_only>& r) noexcept
- : luastate(detail::pick_main_thread<main_only>(L, L)) {
- if (r.ref == LUA_REFNIL) {
- ref = LUA_REFNIL;
- return;
- }
- if (r.ref == LUA_NOREF || lua_state() == nullptr) {
- ref = LUA_NOREF;
- return;
- }
- if (detail::xmovable(lua_state(), r.lua_state())) {
- r.push(lua_state());
- ref = luaL_ref(lua_state(), LUA_REGISTRYINDEX);
- return;
- }
- ref = r.copy();
- }
-
- template <bool r_main_only>
- basic_reference(lua_State* L, basic_reference<r_main_only>&& r) noexcept
- : luastate(detail::pick_main_thread<main_only>(L, L)) {
- if (r.ref == LUA_REFNIL) {
- ref = LUA_REFNIL;
- return;
- }
- if (r.ref == LUA_NOREF || lua_state() == nullptr) {
- ref = LUA_NOREF;
- return;
- }
- if (detail::xmovable(lua_state(), r.lua_state())) {
- r.push(lua_state());
- ref = luaL_ref(lua_state(), LUA_REGISTRYINDEX);
- return;
- }
- ref = r.ref;
- r.ref = LUA_NOREF;
- r.luastate = nullptr;
- }
-
- basic_reference(lua_State* L, const stack_reference& r) noexcept
- : luastate(detail::pick_main_thread<main_only>(L, L)) {
- if (lua_state() == nullptr || r.lua_state() == nullptr || r.get_type() == type::none) {
- ref = LUA_NOREF;
- return;
- }
- if (r.get_type() == type::lua_nil) {
- ref = LUA_REFNIL;
- return;
- }
- if (lua_state() != r.lua_state() && !detail::xmovable(lua_state(), r.lua_state())) {
- return;
- }
- r.push(lua_state());
- ref = luaL_ref(lua_state(), LUA_REGISTRYINDEX);
- }
- basic_reference(lua_State* L, int index = -1) noexcept
- : luastate(detail::pick_main_thread<main_only>(L, L)) {
- // use L to stick with that state's execution stack
-#if defined(SOL_SAFE_STACK_CHECK) && SOL_SAFE_STACK_CHECK
- luaL_checkstack(L, 1, "not enough Lua stack space to push this reference value");
-#endif // make sure stack doesn't overflow
- lua_pushvalue(L, index);
- ref = luaL_ref(L, LUA_REGISTRYINDEX);
- }
- basic_reference(lua_State* L, ref_index index) noexcept
- : luastate(detail::pick_main_thread<main_only>(L, L)) {
- lua_rawgeti(lua_state(), LUA_REGISTRYINDEX, index.index);
- ref = luaL_ref(lua_state(), LUA_REGISTRYINDEX);
- }
- basic_reference(lua_State* L, lua_nil_t) noexcept
- : luastate(detail::pick_main_thread<main_only>(L, L)) {
- }
-
- ~basic_reference() noexcept {
- if (lua_state() == nullptr || ref == LUA_NOREF)
- return;
- deref();
- }
-
- basic_reference(const basic_reference& o) noexcept
- : stateless_reference(o.copy()), luastate(o.lua_state()) {
- }
-
- basic_reference(basic_reference&& o) noexcept
- : stateless_reference(std::move(o)), luastate(o.lua_state()) {
- o.luastate = nullptr;
- }
-
- basic_reference(const basic_reference<!main_only>& o) noexcept
- : basic_reference(detail::pick_main_thread < main_only && !main_only > (o.lua_state(), o.lua_state()), o) {
- }
-
- basic_reference(basic_reference<!main_only>&& o) noexcept
- : stateless_reference(std::move(o)), luastate(detail::pick_main_thread<main_only && !main_only>(o.lua_state(), o.lua_state())) {
- o.luastate = nullptr;
- o.ref = LUA_NOREF;
- }
-
- basic_reference& operator=(basic_reference&& r) noexcept {
- move_assign(std::move(r));
- return *this;
- }
-
- basic_reference& operator=(const basic_reference& r) noexcept {
- copy_assign(r);
- return *this;
- }
-
- basic_reference& operator=(basic_reference<!main_only>&& r) noexcept {
- move_assign(std::move(r));
- return *this;
- }
-
- basic_reference& operator=(const basic_reference<!main_only>& r) noexcept {
- copy_assign(r);
- return *this;
- }
-
- basic_reference& operator=(const lua_nil_t&) noexcept {
- if (valid()) {
- deref();
- }
- luastate = nullptr;
- ref = LUA_NOREF;
- return *this;
- }
-
- template <typename Super>
- basic_reference& operator=(proxy_base<Super>&& r);
-
- template <typename Super>
- basic_reference& operator=(const proxy_base<Super>& r);
-
- int push() const noexcept {
- return push(lua_state());
- }
-
- int push(lua_State* L) const noexcept {
-#if defined(SOL_SAFE_STACK_CHECK) && SOL_SAFE_STACK_CHECK
- luaL_checkstack(L, 1, "not enough Lua stack space to push this reference value");
-#endif // make sure stack doesn't overflow
- if (lua_state() == nullptr) {
- lua_pushnil(L);
- return 1;
- }
- lua_rawgeti(lua_state(), LUA_REGISTRYINDEX, ref);
- if (L != lua_state()) {
- lua_xmove(lua_state(), L, 1);
- }
- return 1;
- }
-
- void pop() const noexcept {
- pop(lua_state());
- }
-
- void pop(lua_State* L, int n = 1) const noexcept {
- stateless_reference::pop(L, n);
- }
-
- int registry_index() const noexcept {
- return stateless_reference::registry_index();
- }
-
- bool valid() const noexcept {
- return stateless_reference::valid(lua_state());
- }
-
- const void* pointer() const noexcept {
- return stateless_reference::pointer(lua_state());
- }
-
- explicit operator bool() const noexcept {
- return valid();
- }
-
- type get_type() const noexcept {
- return stateless_reference::get_type(lua_state());
- }
-
- lua_State* lua_state() const noexcept {
- return luastate;
- }
- };
-
- template <bool lb, bool rb>
- inline bool operator==(const basic_reference<lb>& l, const basic_reference<rb>& r) {
- auto ppl = stack::push_pop(l);
- auto ppr = stack::push_pop(r);
- return lua_compare(l.lua_state(), -1, -2, LUA_OPEQ) == 1;
- }
-
- template <bool lb, bool rb>
- inline bool operator!=(const basic_reference<lb>& l, const basic_reference<rb>& r) {
- return !operator==(l, r);
- }
-
- template <bool lb>
- inline bool operator==(const basic_reference<lb>& l, const stack_reference& r) {
- auto ppl = stack::push_pop(l);
- return lua_compare(l.lua_state(), -1, r.stack_index(), LUA_OPEQ) == 1;
- }
-
- template <bool lb>
- inline bool operator!=(const basic_reference<lb>& l, const stack_reference& r) {
- return !operator==(l, r);
- }
-
- template <bool rb>
- inline bool operator==(const stack_reference& l, const basic_reference<rb>& r) {
- auto ppr = stack::push_pop(r);
- return lua_compare(l.lua_state(), -1, r.stack_index(), LUA_OPEQ) == 1;
- }
-
- template <bool rb>
- inline bool operator!=(const stack_reference& l, const basic_reference<rb>& r) {
- return !operator==(l, r);
- }
-
- template <bool lb>
- inline bool operator==(const basic_reference<lb>& lhs, const lua_nil_t&) {
- return !lhs.valid();
- }
-
- template <bool rb>
- inline bool operator==(const lua_nil_t&, const basic_reference<rb>& rhs) {
- return !rhs.valid();
- }
-
- template <bool lb>
- inline bool operator!=(const basic_reference<lb>& lhs, const lua_nil_t&) {
- return lhs.valid();
- }
-
- template <bool rb>
- inline bool operator!=(const lua_nil_t&, const basic_reference<rb>& rhs) {
- return rhs.valid();
- }
-
- struct reference_equals : public stack_reference_equals {
- template <bool rb>
- bool operator()(const lua_nil_t& lhs, const basic_reference<rb>& rhs) const {
- return lhs == rhs;
- }
-
- template <bool lb>
- bool operator()(const basic_reference<lb>& lhs, const lua_nil_t& rhs) const {
- return lhs == rhs;
- }
-
- template <bool lb, bool rb>
- bool operator()(const basic_reference<lb>& lhs, const basic_reference<rb>& rhs) const {
- return lhs == rhs;
- }
-
- template <bool lb>
- bool operator()(const basic_reference<lb>& lhs, const stack_reference& rhs) const {
- return lhs == rhs;
- }
-
- template <bool rb>
- bool operator()(const stack_reference& lhs, const basic_reference<rb>& rhs) const {
- return lhs == rhs;
- }
- };
-
- struct reference_hash : public stack_reference_hash {
- typedef reference argument_type;
- typedef std::size_t result_type;
-
- template <bool lb>
- result_type operator()(const basic_reference<lb>& lhs) const {
- std::hash<const void*> h;
- return h(lhs.pointer());
- }
- };
-} // namespace sol
-
-#endif // SOL_REFERENCE_HPP
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-07 16:46:09 +0000