From 7fcad548360a6b9728de6844ddd0ea1807651a16 Mon Sep 17 00:00:00 2001
From: Howard Hinnant <hhinnant@apple.com>
Date: Mon, 12 Dec 2011 18:16:10 +0000
Subject: Added dependent exception support to __cxa_current_exception_type

llvm-svn: 146381
---
 libcxxabi/src/cxa_exception.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'libcxxabi/src/cxa_exception.cpp')

diff --git a/libcxxabi/src/cxa_exception.cpp b/libcxxabi/src/cxa_exception.cpp
index 6022740f4c4..9cf61a9aa5a 100644
--- a/libcxxabi/src/cxa_exception.cpp
+++ b/libcxxabi/src/cxa_exception.cpp
@@ -305,7 +305,11 @@ std::type_info * __cxa_current_exception_type() {
     __cxa_exception *current_exception = globals->caughtExceptions;
     if (NULL == current_exception)
         return NULL;        //  No current exception
-//  TODO add stuff for dependent exceptions.
+    if (isDependentException(&current_exception->unwindHeader)) {
+        __cxa_dependent_exception* deh =
+            reinterpret_cast<__cxa_dependent_exception*>(current_exception + 1) - 1;
+        current_exception = static_cast<__cxa_exception*>(deh->primaryException) - 1;
+    }
     return current_exception->exceptionType;
 }
 
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