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Improve container handling and the vec[#vec] = nil idiom from Lua

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ThePhD 2020-05-06 22:17:02 -04:00
parent 890cdd38b4
commit 5022c4d8f6
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GPG Key ID: 1509DB1C0F702BFA
5 changed files with 60 additions and 28 deletions
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4
include/sol/error_handler.hpp
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@ -34,9 +34,9 @@ namespace sol {
namespace detail {
constexpr const char* not_a_number = "not a numeric type";
constexpr const char* not_a_number_or_number_string = "not a numeric type or numeric string";
constexpr const char* not_a_number_integral = "not a numeric type that fits exactly an integer (has significant decimals)";
constexpr const char* not_a_number_integral = "not a numeric type that fits exactly an integer (number maybe has significant decimals)";
constexpr const char* not_a_number_or_number_string_integral
= "not a numeric type or a numeric string that fits exactly an integer (has significant decimals)";
= "not a numeric type or a numeric string that fits exactly an integer (e.g. number maybe has significant decimals)";
constexpr const char* not_enough_stack_space = "not enough space left on Lua stack";
constexpr const char* not_enough_stack_space_floating = "not enough space left on Lua stack for a floating point number";

17
include/sol/usertype_container.hpp
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@ -880,8 +880,7 @@ namespace sol {
auto backit = self.before_begin();
{
auto e = deferred_uc::end(L, self);
for (auto it = deferred_uc::begin(L, self); it != e; ++backit, ++it) {
}
for (auto it = deferred_uc::begin(L, self); it != e; ++backit, ++it) { }
}
return add_insert_after(std::true_type(), L, self, value, backit);
}
@ -1244,9 +1243,23 @@ namespace sol {
static int set(lua_State* L) {
stack_object value = stack_object(L, raw_index(3));
if constexpr (is_linear_integral::value) {
// for non-associative containers,
// erasure only happens if it is the
// last index in the container
auto key = stack::get<K>(L, 2);
auto self_size = deferred_uc::size(L);
if (key == static_cast<K>(self_size)) {
if (type_of(L, 3) == type::lua_nil) {
return erase(L);
}
}
}
else {
if (type_of(L, 3) == type::lua_nil) {
return erase(L);
}
}
auto& self = get_src(L);
detail::error_result er = set_start(L, self, stack_object(L, raw_index(2)), std::move(value));
return handle_errors(L, er);

4
single/include/sol/forward.hpp
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@ -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 2020-03-31 04:18:52.546413 UTC
// This header was generated with sol v3.2.0 (revision 82812c5)
// Generated 2020-05-07 02:16:42.603409 UTC
// This header was generated with sol v3.2.0 (revision 890cdd3)
// https://github.com/ThePhD/sol2
#ifndef SOL_SINGLE_INCLUDE_FORWARD_HPP

25
single/include/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 2020-03-31 04:18:51.740568 UTC
// This header was generated with sol v3.2.0 (revision 82812c5)
// Generated 2020-05-07 02:16:42.137643 UTC
// This header was generated with sol v3.2.0 (revision 890cdd3)
// https://github.com/ThePhD/sol2
#ifndef SOL_SINGLE_INCLUDE_HPP
@ -8054,9 +8054,9 @@ namespace sol {
namespace detail {
constexpr const char* not_a_number = "not a numeric type";
constexpr const char* not_a_number_or_number_string = "not a numeric type or numeric string";
constexpr const char* not_a_number_integral = "not a numeric type that fits exactly an integer (has significant decimals)";
constexpr const char* not_a_number_integral = "not a numeric type that fits exactly an integer (number maybe has significant decimals)";
constexpr const char* not_a_number_or_number_string_integral
= "not a numeric type or a numeric string that fits exactly an integer (has significant decimals)";
= "not a numeric type or a numeric string that fits exactly an integer (e.g. number maybe has significant decimals)";
constexpr const char* not_enough_stack_space = "not enough space left on Lua stack";
constexpr const char* not_enough_stack_space_floating = "not enough space left on Lua stack for a floating point number";
@ -19755,8 +19755,7 @@ namespace sol {
auto backit = self.before_begin();
{
auto e = deferred_uc::end(L, self);
for (auto it = deferred_uc::begin(L, self); it != e; ++backit, ++it) {
}
for (auto it = deferred_uc::begin(L, self); it != e; ++backit, ++it) { }
}
return add_insert_after(std::true_type(), L, self, value, backit);
}
@ -20119,9 +20118,23 @@ namespace sol {
static int set(lua_State* L) {
stack_object value = stack_object(L, raw_index(3));
if constexpr (is_linear_integral::value) {
// for non-associative containers,
// erasure only happens if it is the
// last index in the container
auto key = stack::get<K>(L, 2);
auto self_size = deferred_uc::size(L);
if (key == static_cast<K>(self_size)) {
if (type_of(L, 3) == type::lua_nil) {
return erase(L);
}
}
}
else {
if (type_of(L, 3) == type::lua_nil) {
return erase(L);
}
}
auto& self = get_src(L);
detail::error_result er = set_start(L, self, stack_object(L, raw_index(2)), std::move(value));
return handle_errors(L, er);

6
tests/runtime_tests/source/container_shims.cpp
View File

@ -149,6 +149,12 @@ namespace sol {
static auto end(lua_State*, my_vec& self) {
return self.end();
}
static std::size_t size(lua_State* L) {
my_vec& v = sol::stack::get<my_vec&>(L, 1);
return v.size();
}
static std::ptrdiff_t index_adjustment(lua_State*, my_vec&) {
return 0;
}