Fix PR25898 - Check for incomplete pointers types in can_catch(...)

git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@256322 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 83 insertions, 0 deletions

diff --git a/test/incomplete_type.sh.cpp b/test/incomplete_type.sh.cpp
new file mode 100644
index 0000000..111d133
--- /dev/null
+++ b/test/incomplete_type.sh.cpp
@@ -0,0 +1,83 @@
+//===------------------------- incomplete_type.cpp --------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+// http://mentorembedded.github.io/cxx-abi/abi.html#rtti-layout
+
+// Two abi::__pbase_type_info objects can always be compared for equality
+// (i.e. of the types represented) or ordering by comparison of their name
+// NTBS addresses. In addition, unless either or both have either of the
+// incomplete flags set, equality can be tested by comparing the type_info
+// addresses.
+
+// RUN: %cxx %compile_flags -c %s -o %t.one.o
+// RUN: %cxx %compile_flags -c %s -o %t.two.o -DTU_ONE
+// RUN: %cxx %link_flags -o %t.exe %t.one.o %t.two.o
+// RUN: %t.exe
+
+#include <stdio.h>
+#include <cassert>
+#include <typeinfo>
+
+struct NeverDefined;
+void ThrowNeverDefined();
+
+struct IncompleteAtThrow;
+void ThrowIncomplete();
+std::type_info const& ReturnTypeInfoIncomplete();
+
+struct CompleteAtThrow;
+void ThrowComplete();
+std::type_info const& ReturnTypeInfoComplete();
+
+void ThrowNullptr();
+
+#ifndef TU_ONE
+
+void ThrowNeverDefined() { throw (int NeverDefined::*)nullptr; }
+
+void ThrowIncomplete() { throw (int IncompleteAtThrow::*)nullptr; }
+std::type_info const& ReturnTypeInfoIncomplete() { return typeid(int IncompleteAtThrow::*); }
+
+struct CompleteAtThrow {};
+void ThrowComplete() { throw (int CompleteAtThrow::*)nullptr; }
+std::type_info const& ReturnTypeInfoComplete() { return typeid(int CompleteAtThrow::*); }
+
+void ThrowNullptr() { throw nullptr; }
+
+#else
+
+struct IncompleteAtThrow {};
+
+int main() {
+  assert(ReturnTypeInfoIncomplete() != typeid(int IncompleteAtThrow::*));
+  try {
+    ThrowIncomplete();
+  } catch (int IncompleteAtThrow::*) {}
+
+  assert(ReturnTypeInfoComplete() != typeid(int CompleteAtThrow::*));
+  try {
+    ThrowComplete();
+  } catch (int CompleteAtThrow::*) {}
+
+#if __cplusplus >= 201103L
+  // Catch nullptr as complete type
+  try {
+    ThrowNullptr();
+  } catch (int IncompleteAtThrow::*) {}
+
+  // Catch nullptr as an incomplete type
+  try {
+    ThrowNullptr();
+  } catch (int CompleteAtThrow::*) {}
+  // Catch nullptr as a type that is never complete.
+  try {
+    ThrowNeverDefined();
+  } catch (int NeverDefined::*) {}
+#endif
+}
+#endif