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const qq

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This commit is contained in:
ThePhD 2016-07-15 10:13:38 -04:00
parent c03073e059
commit f1965a4364
2 changed files with 37 additions and 3 deletions
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6
sol/stack_push.hpp
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@ -63,13 +63,13 @@ namespace sol {
return stack::push(L, nil);
T** pref = static_cast<T**>(lua_newuserdata(L, sizeof(T*)));
*pref = obj;
luaL_getmetatable(L, &k[0]);
luaL_newmetatable(L, &k[0]);
lua_setmetatable(L, -2);
return 1;
}
static int push(lua_State* L, T* obj) {
return push_keyed(L, usertype_traits<T*>::metatable, obj);
return push_keyed(L, usertype_traits<meta::unqualified_t<T>*>::metatable, obj);
}
};
@ -287,7 +287,7 @@ namespace sol {
std::allocator<T> alloc;
alloc.construct(data, std::forward<Args>(args)...);
if (with_meta) {
const auto name = &usertype_traits<T>::user_gc_metatable[0];
const auto name = &usertype_traits<meta::unqualified_t<T>>::user_gc_metatable[0];
lua_CFunction cdel = stack_detail::alloc_destroy<T>;
// Make sure we have a plain GC set for this data
if (luaL_newmetatable(L, name) != 0) {

34
test_usertypes.cpp
View File

@ -1139,3 +1139,37 @@ TEST_CASE("usertype/double-deleter-guards", "usertype metatables internally must
lua = sol::state();
});
}
TEST_CASE("usertype/const-correctness", "usertype metatable names should reasonably ignore const attributes") {
struct Vec {
int x, y, z;
};
sol::state lua;
lua.open_libraries(sol::lib::base);
lua.new_usertype<Vec>("Vec", "x", &Vec::x, "y", &Vec::y, "z", &Vec::z);
Vec vec;
vec.x = 1;
vec.y = 2;
vec.z = -3;
std::vector<Vec> foo;
foo.push_back(vec);
std::vector<Vec const *> bar;
bar.push_back(&vec);
lua.script(R"(
func = function(vecs)
for i, vec in ipairs(vecs) do
print(i, ":", vec.x, vec.y, vec.z)
end
end
)");
REQUIRE_NOTHROW({
lua["func"](foo);
lua["func"](bar);
});
}