Refactor DelayedDiagnostics so that it keeps diagnostics in

separate pools owned by the RAII objects that keep pushing
decl state.  This gives us quite a bit more flexibility.

llvm-svn: 156289

1 files changed, 4 insertions, 1 deletions

diff --git a/clang/lib/Sema/Sema.cpp b/clang/lib/Sema/Sema.cpp
index 5853f7f394c..ca3e233cb7e 100644
--- a/clang/lib/Sema/Sema.cpp
+++ b/clang/lib/Sema/Sema.cpp
@@ -18,6 +18,7 @@
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/APFloat.h"
+#include "llvm/Support/CrashRecoveryContext.h"
 #include "clang/Sema/CXXFieldCollector.h"
 #include "clang/Sema/TemplateDeduction.h"
 #include "clang/Sema/ExternalSemaSource.h"
@@ -201,7 +202,6 @@ Sema::~Sema() {
     ExternalSema->ForgetSema();
 }
 
-
 /// makeUnavailableInSystemHeader - There is an error in the current
 /// context.  If we're still in a system header, and we can plausibly
 /// make the relevant declaration unavailable instead of erroring, do
@@ -426,6 +426,9 @@ void Sema::LoadExternalWeakUndeclaredIdentifiers() {
 /// translation unit when EOF is reached and all but the top-level scope is
 /// popped.
 void Sema::ActOnEndOfTranslationUnit() {
+  assert(DelayedDiagnostics.getCurrentPool() == NULL
+         && "reached end of translation unit with a pool attached?");
+
   // Only complete translation units define vtables and perform implicit
   // instantiations.
   if (TUKind == TU_Complete) {