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allow final classes to be used

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improve error reporting for stack checks
This commit is contained in:
ThePhD 2017-10-26 12:53:52 -04:00
parent 7a1f20eaf1
commit d107cb8cc9
4 changed files with 82 additions and 18 deletions
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52
single/sol/sol.hpp
View File

@ -20,8 +20,8 @@
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// This file was generated with a script.
// Generated 2017-10-21 00:59:28.565154 UTC
// This header was generated with sol v2.18.4 (revision 3ee36c7)
// Generated 2017-10-26 16:52:58.996254 UTC
// This header was generated with sol v2.18.4 (revision e9580bc)
// https://github.com/ThePhD/sol2
#ifndef SOL_SINGLE_INCLUDE_HPP
@ -1147,7 +1147,14 @@ namespace sol {
struct is_callable : std::is_function<std::remove_pointer_t<T>> {};
template <typename T>
struct is_callable<T, std::enable_if_t<std::is_class<unqualified_t<T>>::value && std::is_destructible<unqualified_t<T>>::value>> {
struct is_callable<T, std::enable_if_t<std::is_final<unqualified_t<T>>::value
&& std::is_class<unqualified_t<T>>::value
&& std::is_same<decltype(void(&T::operator())), void>::value>> {
};
template <typename T>
struct is_callable<T, std::enable_if_t<!std::is_final<unqualified_t<T>>::value && std::is_class<unqualified_t<T>>::value && std::is_destructible<unqualified_t<T>>::value>> {
using yes = char;
using no = struct { char s[2]; };
@ -1168,7 +1175,7 @@ namespace sol {
};
template <typename T>
struct is_callable<T, std::enable_if_t<std::is_class<unqualified_t<T>>::value && !std::is_destructible<unqualified_t<T>>::value>> {
struct is_callable<T, std::enable_if_t<!std::is_final<unqualified_t<T>>::value && std::is_class<unqualified_t<T>>::value && !std::is_destructible<unqualified_t<T>>::value>> {
using yes = char;
using no = struct { char s[2]; };
@ -5685,19 +5692,44 @@ namespace detail {
namespace sol {
inline std::string associated_type_name(lua_State* L, int index, type t) {
switch (t) {
case type::poly:
return "anything";
case type::userdata:
{
if (lua_getmetatable(L, index) == 0) {
break;
}
lua_pushlstring(L, "__name", 6);
lua_rawget(L, -2);
size_t sz;
const char* name = lua_tolstring(L, -1, &sz);
std::string tn(name, static_cast<std::string::size_type>(sz));
lua_pop(L, 2);
return name;
}
default:
break;
}
return lua_typename(L, static_cast<int>(t));
}
inline int type_panic_string(lua_State* L, int index, type expected, type actual, const std::string& message = "") noexcept(false) {
const char* err = message.empty() ? "stack index %d, expected %s, received %s" : "stack index %d, expected %s, received %s with message %s";
const char* err = message.empty() ? "stack index %d, expected %s, received %s" : "stack index %d, expected %s, received %s: %s";
std::string actualname = associated_type_name(L, index, actual);
return luaL_error(L, err, index,
expected == type::poly ? "anything" : lua_typename(L, static_cast<int>(expected)),
actual == type::poly ? "anything" : lua_typename(L, static_cast<int>(actual)),
actualname.c_str(),
message.c_str());
}
inline int type_panic_c_str(lua_State* L, int index, type expected, type actual, const char* message = nullptr) noexcept(false) {
const char* err = message == nullptr || (std::char_traits<char>::length(message) == 0) ? "stack index %d, expected %s, received %s" : "stack index %d, expected %s, received %s with message %s";
const char* err = message == nullptr || (std::char_traits<char>::length(message) == 0) ? "stack index %d, expected %s, received %s" : "stack index %d, expected %s, received %s: %s";
std::string actualname = associated_type_name(L, index, actual);
return luaL_error(L, err, index,
expected == type::poly ? "anything" : lua_typename(L, static_cast<int>(expected)),
actual == type::poly ? "anything" : lua_typename(L, static_cast<int>(actual)),
actualname.c_str(),
message);
}
@ -5731,7 +5763,7 @@ namespace sol {
template <typename R, typename... Args>
struct argument_handler<types<R, Args...>> {
int operator()(lua_State* L, int index, type expected, type actual, const std::string& message) const noexcept(false) {
std::string addendum = " (bad argument to type expecting '";
std::string addendum = " (bad argument into '";
addendum += detail::demangle<R>();
addendum += "(";
int marker = 0;
@ -7794,7 +7826,7 @@ namespace stack {
}
if (!success) {
lua_pop(L, 1);
handler(L, index, type::userdata, indextype, "value is not a valid sol userdata of any kind");
handler(L, index, type::userdata, indextype, "value at this index does not properly reflect the desired type");
return false;
}
lua_pop(L, 1);

35
sol/error_handler.hpp
View File

@ -27,19 +27,44 @@
namespace sol {
inline std::string associated_type_name(lua_State* L, int index, type t) {
switch (t) {
case type::poly:
return "anything";
case type::userdata:
{
if (lua_getmetatable(L, index) == 0) {
break;
}
lua_pushlstring(L, "__name", 6);
lua_rawget(L, -2);
size_t sz;
const char* name = lua_tolstring(L, -1, &sz);
std::string tn(name, static_cast<std::string::size_type>(sz));
lua_pop(L, 2);
return name;
}
default:
break;
}
return lua_typename(L, static_cast<int>(t));
}
inline int type_panic_string(lua_State* L, int index, type expected, type actual, const std::string& message = "") noexcept(false) {
const char* err = message.empty() ? "stack index %d, expected %s, received %s" : "stack index %d, expected %s, received %s with message %s";
const char* err = message.empty() ? "stack index %d, expected %s, received %s" : "stack index %d, expected %s, received %s: %s";
std::string actualname = associated_type_name(L, index, actual);
return luaL_error(L, err, index,
expected == type::poly ? "anything" : lua_typename(L, static_cast<int>(expected)),
actual == type::poly ? "anything" : lua_typename(L, static_cast<int>(actual)),
actualname.c_str(),
message.c_str());
}
inline int type_panic_c_str(lua_State* L, int index, type expected, type actual, const char* message = nullptr) noexcept(false) {
const char* err = message == nullptr || (std::char_traits<char>::length(message) == 0) ? "stack index %d, expected %s, received %s" : "stack index %d, expected %s, received %s with message %s";
const char* err = message == nullptr || (std::char_traits<char>::length(message) == 0) ? "stack index %d, expected %s, received %s" : "stack index %d, expected %s, received %s: %s";
std::string actualname = associated_type_name(L, index, actual);
return luaL_error(L, err, index,
expected == type::poly ? "anything" : lua_typename(L, static_cast<int>(expected)),
actual == type::poly ? "anything" : lua_typename(L, static_cast<int>(actual)),
actualname.c_str(),
message);
}
@ -73,7 +98,7 @@ namespace sol {
template <typename R, typename... Args>
struct argument_handler<types<R, Args...>> {
int operator()(lua_State* L, int index, type expected, type actual, const std::string& message) const noexcept(false) {
std::string addendum = " (bad argument to type expecting '";
std::string addendum = " (bad argument into '";
addendum += detail::demangle<R>();
addendum += "(";
int marker = 0;

2
sol/stack_check.hpp
View File

@ -449,7 +449,7 @@ namespace stack {
}
if (!success) {
lua_pop(L, 1);
handler(L, index, type::userdata, indextype, "value is not a valid sol userdata of any kind");
handler(L, index, type::userdata, indextype, "value at this index does not properly reflect the desired type");
return false;
}
lua_pop(L, 1);

11
sol/traits.hpp
View File

@ -260,7 +260,14 @@ namespace sol {
struct is_callable : std::is_function<std::remove_pointer_t<T>> {};
template <typename T>
struct is_callable<T, std::enable_if_t<std::is_class<unqualified_t<T>>::value && std::is_destructible<unqualified_t<T>>::value>> {
struct is_callable<T, std::enable_if_t<std::is_final<unqualified_t<T>>::value
&& std::is_class<unqualified_t<T>>::value
&& std::is_same<decltype(void(&T::operator())), void>::value>> {
};
template <typename T>
struct is_callable<T, std::enable_if_t<!std::is_final<unqualified_t<T>>::value && std::is_class<unqualified_t<T>>::value && std::is_destructible<unqualified_t<T>>::value>> {
using yes = char;
using no = struct { char s[2]; };
@ -281,7 +288,7 @@ namespace sol {
};
template <typename T>
struct is_callable<T, std::enable_if_t<std::is_class<unqualified_t<T>>::value && !std::is_destructible<unqualified_t<T>>::value>> {
struct is_callable<T, std::enable_if_t<!std::is_final<unqualified_t<T>>::value && std::is_class<unqualified_t<T>>::value && !std::is_destructible<unqualified_t<T>>::value>> {
using yes = char;
using no = struct { char s[2]; };