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PR19178 __is_constructible returns true for abstract types. 

llvm-svn: 206273
This commit is contained in:
Nikola Smiljanic 2014-04-15 11:30:15 +00:00
parent 16d671a413
commit 1b4b6bac3b
2 changed files with 10 additions and 0 deletions
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5
clang/lib/Sema/SemaExprCXX.cpp
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@ -3656,6 +3656,11 @@ static bool evaluateTypeTrait(Sema &S, TypeTrait Kind, SourceLocation KWLoc,
if (Args[0]->getType()->isIncompleteType())
return false;
// Make sure the first argument is not an abstract type.
CXXRecordDecl *RD = Args[0]->getType()->getAsCXXRecordDecl();
if (RD && RD->isAbstract())
return false;
SmallVector<OpaqueValueExpr, 2> OpaqueArgExprs;
SmallVector<Expr *, 2> ArgExprs;
ArgExprs.reserve(Args.size() - 1);

5
clang/test/SemaCXX/type-traits.cpp
View File

@ -1964,6 +1964,10 @@ void constructible_checks() {
{ int arr[T(__is_constructible(NonPOD, int))]; }
{ int arr[F(__is_nothrow_constructible(NonPOD, int))]; }
// PR19178
{ int arr[F(__is_constructible(Abstract))]; }
{ int arr[F(__is_nothrow_constructible(Abstract))]; }
}
// Instantiation of __is_trivially_constructible
@ -1991,6 +1995,7 @@ void is_trivially_constructible_test() {
{ int arr[F((is_trivially_constructible<int, int*>::value))]; }
{ int arr[F((is_trivially_constructible<NonTrivialDefault>::value))]; }
{ int arr[F((is_trivially_constructible<ThreeArgCtor, int*, char*, int&>::value))]; }
{ int arr[F((is_trivially_constructible<Abstract>::value))]; } // PR19178
}
void array_rank() {