zequanwu added inline comments.
================
Comment at: clang/lib/Sema/SemaInit.cpp:8710
}
+ QualType fromType = op->getType();
+ auto *fromDecl = fromType.getTypePtr()->getPointeeCXXRecordDecl();
----------------
zequanwu wrote:
> hans wrote:
> > Can the reverse situation happen, where it's destType that's forward
> > declared?
> If we only consider normal class without template, I think it's not necessary.
> Here is an example of forward-declared destType.
> ```
> class B{};
> class A;
> B *b;
> A *a= b;
> ```
> Even if A is defined as `class A: public B{};`, `A *a = b` is still not
> valid, initializing pointer to derived class with pointer to base class.
The reverse situation could happen in class template.
```
template<class C> class A{};
template<class C> class B; // template<class C> class B : public A<C>{};
compiles
B<int> *b;
A<int> *a = b;
```
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D85390/new/
https://reviews.llvm.org/D85390
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
