[cfe-commits] [libcxxabi] r149459 - /libcxxabi/trunk/test/catch_ptr.cpp

[Howard Hinnant]

Author: hhinnant
Date: Tue Jan 31 18:22:38 2012
New Revision: 149459

URL: http://llvm.org/viewvc/llvm-project?rev=149459&view=rev
Log:
Here's a test for catching pointers.

Added:
    libcxxabi/trunk/test/catch_ptr.cpp

Added: libcxxabi/trunk/test/catch_ptr.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxxabi/trunk/test/catch_ptr.cpp?rev=149459&view=auto
==============================================================================
--- libcxxabi/trunk/test/catch_ptr.cpp (added)
+++ libcxxabi/trunk/test/catch_ptr.cpp Tue Jan 31 18:22:38 2012
@@ -0,0 +1,181 @@
+//===---------------------- catch_class_04.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.
+//
+//===----------------------------------------------------------------------===//
+
+/*
+    This test checks that adjustedPtr is correct as there exist offsets in this
+    object for the various subobjects, all of which have a unique id_ to
+    check against.  It also checks that virtual bases work properly
+*/
+
+#include <exception>
+#include <stdlib.h>
+#include <assert.h>
+
+struct B
+{
+    static int count;
+    int id_;
+    explicit B(int id) : id_(id) {count++;}
+    B(const B& a) : id_(a.id_) {count++;}
+    ~B() {count--;}
+};
+
+int B::count = 0;
+
+struct C1
+    : virtual B
+{
+    static int count;
+    int id_;
+    explicit C1(int id) : B(id-2), id_(id) {count++;}
+    C1(const C1& a) : B(a.id_-2), id_(a.id_) {count++;}
+    ~C1() {count--;}
+};
+
+int C1::count = 0;
+
+struct C2
+    : virtual private B
+{
+    static int count;
+    int id_;
+    explicit C2(int id) : B(id-2), id_(id) {count++;}
+    C2(const C2& a) : B(a.id_-2), id_(a.id_) {count++;}
+    ~C2() {count--;}
+};
+
+int C2::count = 0;
+
+struct A
+    : C1, C2
+{
+    static int count;
+    int id_;
+    explicit A(int id) : C1(id-1), C2(id-2), B(id+3), id_(id) {count++;}
+    A(const A& a) : C1(a.id_-1), C2(a.id_-2), B(a.id_+3), id_(a.id_) {count++;}
+    ~A() {count--;}
+};
+
+int A::count = 0;
+
+A a(5);
+
+void f1()
+{
+    throw &a;
+    assert(false);
+}
+
+void f2()
+{
+    try
+    {
+        f1();
+        assert(false);
+    }
+    catch (const A* a)  // can catch A
+    {
+        assert(a->id_ == 5);
+        assert(static_cast<const C1*>(a)->id_ == 4);
+        assert(static_cast<const C2*>(a)->id_ == 3);
+        assert(static_cast<const B*>(a)->id_ == 8);
+        throw;
+    }
+    catch (const C1*)
+    {
+        assert(false);
+    }
+    catch (const C2*)
+    {
+        assert(false);
+    }
+    catch (const B*)
+    {
+        assert(false);
+    }
+}
+
+void f3()
+{
+    try
+    {
+        f2();
+        assert(false);
+    }
+    catch (const B* a)  // can catch B
+    {
+        assert(static_cast<const B*>(a)->id_ == 8);
+        throw;
+    }
+    catch (const C1* c1)
+    {
+        assert(false);
+    }
+    catch (const C2*)
+    {
+        assert(false);
+    }
+}
+
+void f4()
+{
+    try
+    {
+        f3();
+        assert(false);
+    }
+    catch (const C2* c2)  // can catch C2
+    {
+        assert(c2->id_ == 3);
+        throw;
+    }
+    catch (const B* a)
+    {
+        assert(false);
+    }
+    catch (const C1*)
+    {
+        assert(false);
+    }
+}
+
+void f5()
+{
+    try
+    {
+        f4();
+        assert(false);
+    }
+    catch (const C1* c1)  // can catch C1
+    {
+        assert(c1->id_ == 4);
+        assert(static_cast<const B*>(c1)->id_ == 8);
+        throw;
+    }
+    catch (const B* a)
+    {
+        assert(false);
+    }
+    catch (const C2*)
+    {
+        assert(false);
+    }
+}
+
+int main()
+{
+    try
+    {
+        f5();
+        assert(false);
+    }
+    catch (...)
+    {
+    }
+}