void marked an inline comment as done.
void added inline comments.

================
Comment at: clang/unittests/AST/RandstructTest.cpp:72
+
+  return std::tuple<ASTUnit *, ASTUnit *>(AST.release(), 
ASTFileSeed.release());
+};
----------------
MaskRay wrote:
> aaron.ballman wrote:
> > void wrote:
> > > aaron.ballman wrote:
> > > > Why not keep these as unique pointers and move them into the tuple? 
> > > > Then the callers don't have to call delete manually.
> > > The d'tors for the `unique_ptr`s is called if I place them in the tuple. 
> > > I think it's because I can't do something like this:
> > > 
> > > ```
> > > const unique_ptr<ASTUnit> std::tie(AST, ASTFileSeed) = makeAST(...);
> > > ```
> > > 
> > > in the test functions. When I assign it as a non-initializer, it 
> > > apparently calls the d'tor. So, kinda stumped on what to do.
> > > 
> > > And the `EXPECT_FALSE` above is used because the `ASSERT_FALSE` adds an 
> > > extra return point, which messes with the lambda.
> > Okay, thank you for the explanations!
> I think std::unique_ptr should and can be used here. See comment above.
Yeah, it's just that it doesn't work. I actually tried it a lot of different 
ways before, of course, and it just doesn't work. Sorry about that.

```
/usr/local/google/home/morbo/llvm/llvm-project/clang/unittests/AST/RandstructTest.cpp:73:10:
 error: no matching constructor for initialization of 
'std::pair<std::unique_ptr<ASTUnit>, std::unique_ptr<ASTUnit>>'
  return std::pair<std::unique_ptr<ASTUnit>, std::unique_ptr<ASTUnit>>(AST, 
ASTFileSeed);
         ^                                                             
~~~~~~~~~~~~~~~~
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:266:17:
 note: candidate template ignored: requirement '_PCC<true, 
std::unique_ptr<clang::ASTUnit, std::default_delete<clang::ASTUnit>>, 
std::unique_ptr<clang::ASTUnit, 
std::default_delete<clang::ASTUnit>>>::_ConstructiblePair()' was not satisfied 
[with _U1 = std::unique_ptr<clang::ASTUnit>, _U2 = 
std::unique_ptr<clang::ASTUnit>]
      constexpr pair(const _T1& __a, const _T2& __b)
                ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:276:26:
 note: candidate template ignored: requirement '_PCC<true, 
std::unique_ptr<clang::ASTUnit, std::default_delete<clang::ASTUnit>>, 
std::unique_ptr<clang::ASTUnit, 
std::default_delete<clang::ASTUnit>>>::_ConstructiblePair()' was not satisfied 
[with _U1 = std::unique_ptr<clang::ASTUnit>, _U2 = 
std::unique_ptr<clang::ASTUnit>]
      explicit constexpr pair(const _T1& __a, const _T2& __b)
                         ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:322:18:
 note: candidate template ignored: requirement '_PCC<true, 
std::unique_ptr<clang::ASTUnit, std::default_delete<clang::ASTUnit>>, 
std::unique_ptr<clang::ASTUnit, 
std::default_delete<clang::ASTUnit>>>::_MoveCopyPair()' was not satisfied [with 
_U1 = std::unique_ptr<clang::ASTUnit> &]
       constexpr pair(_U1&& __x, const _T2& __y)
                 ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:329:27:
 note: candidate template ignored: requirement '_PCC<true, 
std::unique_ptr<clang::ASTUnit, std::default_delete<clang::ASTUnit>>, 
std::unique_ptr<clang::ASTUnit, 
std::default_delete<clang::ASTUnit>>>::_MoveCopyPair()' was not satisfied [with 
_U1 = std::unique_ptr<clang::ASTUnit> &]
       explicit constexpr pair(_U1&& __x, const _T2& __y)
                          ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:336:18:
 note: candidate template ignored: requirement '_PCC<true, 
std::unique_ptr<clang::ASTUnit, std::default_delete<clang::ASTUnit>>, 
std::unique_ptr<clang::ASTUnit, 
std::default_delete<clang::ASTUnit>>>::_CopyMovePair()' was not satisfied [with 
_U2 = std::unique_ptr<clang::ASTUnit> &]
       constexpr pair(const _T1& __x, _U2&& __y)
                 ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:343:17:
 note: candidate template ignored: requirement '_PCC<true, 
std::unique_ptr<clang::ASTUnit, std::default_delete<clang::ASTUnit>>, 
std::unique_ptr<clang::ASTUnit, 
std::default_delete<clang::ASTUnit>>>::_CopyMovePair()' was not satisfied [with 
_U2 = std::unique_ptr<clang::ASTUnit> &]
       explicit pair(const _T1& __x, _U2&& __y)
                ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:352:12:
 note: candidate template ignored: requirement '_PCC<true, 
std::unique_ptr<clang::ASTUnit, std::default_delete<clang::ASTUnit>>, 
std::unique_ptr<clang::ASTUnit, 
std::default_delete<clang::ASTUnit>>>::_MoveConstructiblePair()' was not 
satisfied [with _U1 = std::unique_ptr<clang::ASTUnit> &, _U2 = 
std::unique_ptr<clang::ASTUnit> &]
        constexpr pair(_U1&& __x, _U2&& __y)
                  ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:361:21:
 note: candidate template ignored: requirement '_PCC<true, 
std::unique_ptr<clang::ASTUnit, std::default_delete<clang::ASTUnit>>, 
std::unique_ptr<clang::ASTUnit, 
std::default_delete<clang::ASTUnit>>>::_MoveConstructiblePair()' was not 
satisfied [with _U1 = std::unique_ptr<clang::ASTUnit> &, _U2 = 
std::unique_ptr<clang::ASTUnit> &]
        explicit constexpr pair(_U1&& __x, _U2&& __y)
                           ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:300:19:
 note: candidate constructor template not viable: requires single argument 
'__p', but 2 arguments were provided
        constexpr pair(const pair<_U1, _U2>& __p)
                  ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:309:21:
 note: candidate constructor template not viable: requires single argument 
'__p', but 2 arguments were provided
        explicit constexpr pair(const pair<_U1, _U2>& __p)
                           ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:314:17:
 note: candidate constructor not viable: requires 1 argument, but 2 were 
provided
      constexpr pair(const pair&) = default;    ///< Copy constructor
                ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:315:17:
 note: candidate constructor not viable: requires 1 argument, but 2 were 
provided
      constexpr pair(pair&&) = default;         ///< Move constructor
                ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:371:12:
 note: candidate constructor template not viable: requires single argument 
'__p', but 2 arguments were provided
        constexpr pair(pair<_U1, _U2>&& __p)
                  ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:381:21:
 note: candidate constructor template not viable: requires single argument 
'__p', but 2 arguments were provided
        explicit constexpr pair(pair<_U1, _U2>&& __p)
                           ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:387:9:
 note: candidate constructor template not viable: requires 3 arguments, but 2 
were provided
        pair(piecewise_construct_t, tuple<_Args1...>, tuple<_Args2...>);
        ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:232:26:
 note: candidate constructor template not viable: requires 0 arguments, but 2 
were provided
      _GLIBCXX_CONSTEXPR pair()
                         ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:245:26:
 note: candidate constructor template not viable: requires 0 arguments, but 2 
were provided
      explicit constexpr pair()
                         ^
/usr/lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_pair.h:452:9:
 note: candidate constructor template not viable: requires 4 arguments, but 2 
were provided
        pair(tuple<_Args1...>&, tuple<_Args2...>&,
        ^
1 error generated.
```


Repository:
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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D123636/new/

https://reviews.llvm.org/D123636

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