For printf checking, handle nested typedefs for darwin-specific checking.
Fixes <rdar://problem/13491605>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177931 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index cfce85e..4e11b3a 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -2803,7 +2803,9 @@
// casts to primitive types that are known to be large enough.
bool ShouldNotPrintDirectly = false;
if (S.Context.getTargetInfo().getTriple().isOSDarwin()) {
- if (const TypedefType *UserTy = IntendedTy->getAs<TypedefType>()) {
+ // Use a 'while' to peel off layers of typedefs.
+ QualType TyTy = IntendedTy;
+ while (const TypedefType *UserTy = TyTy->getAs<TypedefType>()) {
StringRef Name = UserTy->getDecl()->getName();
QualType CastTy = llvm::StringSwitch<QualType>(Name)
.Case("NSInteger", S.Context.LongTy)
@@ -2815,7 +2817,9 @@
if (!CastTy.isNull()) {
ShouldNotPrintDirectly = true;
IntendedTy = CastTy;
+ break;
}
+ TyTy = UserTy->desugar();
}
}