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add a visualizer for _Ref_count_obj_alloc3
and _Ref_count_obj2
#2811
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_Ref_count_obj_alloc3
and _Ref_count_obj2
_Ref_count_obj_alloc3
and _Ref_count_obj2
Programmer-archaeology: MSVC-PR-179257 "Comply with The Rules for #309, merged 2020-04-08, shipped in VS 2019 16.7, introduced I don't think we absolutely need version comments, but I wouldn't object to them. |
test code: #include <memory>
template <typename T>
struct stateful_allocator
: std::allocator<T>
{
stateful_allocator() {}
template <typename U> stateful_allocator(stateful_allocator<U> const&) {}
typedef T value_type;
template <typename U> struct rebind { typedef stateful_allocator<U> other; };
T* allocate(size_t n) {
return static_cast<T*>(operator new(n * sizeof(T)));
}
void deallocate(T* p, size_t) { operator delete(p); }
int state = 0;
};
int main() {
std::allocator<int> alloc{};
stateful_allocator<int> salloc{};
auto ms = std::make_shared<int>();
auto as = std::allocate_shared<int>(alloc, 10);
auto as2 = std::allocate_shared<int>(salloc, 10);
return 0;
} |
I didn't test class __declspec(empty_bases) _Ref_count_obj_alloc2 : public _Ebco_base<_Alloc>, public _Ref_count_base { class _Ref_count_obj_alloc3 : public _Ebco_base<_Rebind_alloc_t<_Alloc, _Ty>>, public _Ref_count_base { |
to match the rest of our XML formatting.
<Type Name="std::_Ref_count_obj2<*>"> | ||
<DisplayString>make_shared</DisplayString> | ||
<Expand> | ||
<Item Condition="_Uses != 0" Name="[original ptr]">($T1 *) &_Storage</Item> |
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Can we add a fixed string to a _Uses == 0
condition?
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Why would we need to show a child item for an empty shared_ptr? (weak_ptrs will display themselves as expired, IIRC)
I'm mirroring this to the MSVC-internal repo - please notify me if any further changes are pushed. |
I've resolved a trivial merge conflict where #2804 deleted code next to this PR's addition. |
Thanks for fixing these important visualizers! 🎉 🚀 😸 |
…icrosoft#2811) Co-authored-by: Stephan T. Lavavej <stl@nuwen.net> Co-authored-by: Casey Carter <cartec69@gmail.com>
Fixes #2787
test:
Do we need some comments for them like
<!-- VC 2019 -->
?