Bug: weak_ref::get() to an implementation type doesn't compile #1312
Description
Version
2.0.230225.1
Summary
When using a winrt::weak_ref::get() to some implementation type, a compiler error is thrown.
Reproducible example
#include <Unknwn.h>
#include <winrt/base.h>
struct __declspec(uuid("A9D68584-DB90-458E-BBA7-DB9537786276")) IFoo : IUnknown {};
struct foo : winrt::implements<foo, IFoo> {};
int main()
{
winrt::weak_ref<foo> a;
a.get();
}Expected behavior
No compiler error
Actual behavior
1>C:\Projects\ConsoleApplication15\ConsoleApplication15\x64\Debug\Generated Files\winrt\base.h(6878,17): error C2440: 'static_cast': cannot convert from 'IFoo *' to 'winrt::impl::produce<T,winrt::com_ptr<IFoo>> *'
1> with
1> [
1> T=foo
1> ]
1>C:\Projects\ConsoleApplication15\ConsoleApplication15\x64\Debug\Generated Files\winrt\base.h(6878,17): message : Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or parenthesized function-style cast
1>C:\Projects\ConsoleApplication15\ConsoleApplication15\x64\Debug\Generated Files\winrt\base.h(4224,30): message : see reference to function template instantiation 'D *winrt::get_self<T,winrt::com_ptr<IFoo>>(const I &) noexcept' being compiled
1> with
1> [
1> D=foo,
1> T=foo,
1> I=winrt::com_ptr<IFoo>
1> ]
1>C:\Projects\ConsoleApplication15\ConsoleApplication15\x64\Debug\Generated Files\winrt\base.h(4211,28): message : while compiling class template member function 'winrt::com_ptr<D> winrt::weak_ref<D>::get(void) noexcept const'
1> with
1> [
1> D=foo
1> ]
1>C:\Projects\ConsoleApplication15\ConsoleApplication15\ConsoleApplication15.cpp(13,26): message : see reference to class template instantiation 'winrt::weak_ref<D>' being compiled
1> with
1> [
1> D=foo
1> ]
Additional comments
Works if I where to use a weak_ref<IFoo>, but I don't want that.
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