balazske added a comment.
After import we get a new AST that looks like this:
|-CXXConstructorDecl 0x556e6a172d58 <col:16> col:16 implicit used constexpr A
'void (A &&)' inline default trivial noexcept-unevaluated 0x556e6a172d58
| `-ParmVarDecl 0x556e6a172e78 <col:16> col:16 'A &&'
`-CXXConstructorDecl 0x556e6a1ac250 prev 0x556e6a172d58 <input.cc:2:16>
col:16 implicit used constexpr A 'void (A &&) noexcept' inline default trivial
|-ParmVarDecl 0x556e6a1730e0 <col:16> col:16 used 'A &&'
|-CXXCtorInitializer Field 0x556e6a172850 'm' 'int'
| `-ImplicitCastExpr 0x556e6a1ac3a0 <col:16> 'int' <LValueToRValue>
| `-MemberExpr 0x556e6a1ac370 <col:16> 'int' xvalue .m 0x556e6a172850
| `-CXXStaticCastExpr 0x556e6a1ac340 <col:16> 'A':'A' xvalue
static_cast<A &&> <NoOp>
| `-DeclRefExpr 0x556e6a1ac308 <col:16> 'A':'A' lvalue ParmVar
0x556e6a1730e0 '' 'A &&'
`-CompoundStmt 0x556e6a1ac3e0 <col:16>
It contains a re-declaration of the (implicit) move constructor, but I do not
know if this AST causes problems practically. To avoid this situation we must
change the existing To AST in the import process to add the definition of the
move constructor (to the existing which has no definition). Theoretically this
may be possible, but it is different from how the `ASTImporter` currently
works, now every imported function declaration is created and linked to the
existing ones. (But there are already some values that are updated in the To
AST.)
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D156461/new/
https://reviews.llvm.org/D156461
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