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ObjectiveC arc: Move check for type conversions in arc 

out of ImpCastExprToType and to the caller site
as appropriate. This is in prep. to do more work for
// rdar://14569171 

llvm-svn: 187503
This commit is contained in:
Fariborz Jahanian 2013-07-31 17:12:26 +00:00
parent ec99382b54
commit 374089e7b8
3 changed files with 21 additions and 11 deletions
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3
clang/lib/Sema/Sema.cpp
View File

@ -284,9 +284,6 @@ ExprResult Sema::ImpCastExprToType(Expr *E, QualType Ty,
if (ExprTy == TypeTy)
return Owned(E);
if (getLangOpts().ObjCAutoRefCount)
CheckObjCARCConversion(SourceRange(), Ty, E, CCK);
// If this is a derived-to-base cast to a through a virtual base, we
// need a vtable.
if (Kind == CK_DerivedToBase &&

26
clang/lib/Sema/SemaExpr.cpp
View File

@ -6443,9 +6443,13 @@ Sema::CheckSingleAssignmentConstraints(QualType LHSType, ExprResult &RHS,
// so that we can use references in built-in functions even in C.
// The getNonReferenceType() call makes sure that the resulting expression
// does not have reference type.
if (result != Incompatible && RHS.get()->getType() != LHSType)
RHS = ImpCastExprToType(RHS.take(),
LHSType.getNonLValueExprType(Context), Kind);
if (result != Incompatible && RHS.get()->getType() != LHSType) {
QualType Ty = LHSType.getNonLValueExprType(Context);
Expr *E = RHS.take();
if (getLangOpts().ObjCAutoRefCount)
CheckObjCARCConversion(SourceRange(), Ty, E, CCK_ImplicitConversion);
RHS = ImpCastExprToType(E, Ty, Kind);
}
return result;
}
@ -7698,12 +7702,20 @@ QualType Sema::CheckCompareOperands(ExprResult &LHS, ExprResult &RHS,
diagnoseDistinctPointerComparison(*this, Loc, LHS, RHS,
/*isError*/false);
}
if (LHSIsNull && !RHSIsNull)
LHS = ImpCastExprToType(LHS.take(), RHSType,
if (LHSIsNull && !RHSIsNull) {
Expr *E = LHS.take();
if (getLangOpts().ObjCAutoRefCount)
CheckObjCARCConversion(SourceRange(), RHSType, E, CCK_ImplicitConversion);
LHS = ImpCastExprToType(E, RHSType,
RPT ? CK_BitCast :CK_CPointerToObjCPointerCast);
else
RHS = ImpCastExprToType(RHS.take(), LHSType,
}
else {
Expr *E = RHS.take();
if (getLangOpts().ObjCAutoRefCount)
CheckObjCARCConversion(SourceRange(), LHSType, E, CCK_ImplicitConversion);
RHS = ImpCastExprToType(E, LHSType,
LPT ? CK_BitCast :CK_CPointerToObjCPointerCast);
}
return ResultTy;
}
if (LHSType->isObjCObjectPointerType() &&

3
clang/lib/Sema/SemaExprCXX.cpp
View File

@ -2765,7 +2765,8 @@ Sema::PerformImplicitConversion(Expr *From, QualType ToType,
(void) PrepareCastToObjCObjectPointer(E);
From = E.take();
}
if (getLangOpts().ObjCAutoRefCount)
CheckObjCARCConversion(SourceRange(), ToType, From, CCK);
From = ImpCastExprToType(From, ToType, Kind, VK_RValue, &BasePath, CCK)
.take();
break;