mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
|
* You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "mozilla/Assertions.h"
|
|
#include "mozilla/TypeTraits.h"
|
|
|
|
using mozilla::IsConvertible;
|
|
|
|
class A { };
|
|
class B : public A { };
|
|
class C : private A { };
|
|
class D { };
|
|
|
|
static void
|
|
TestIsConvertible()
|
|
{
|
|
// Pointer type convertibility
|
|
MOZ_ASSERT((IsConvertible<A*, A*>::value),
|
|
"A* should convert to A*");
|
|
MOZ_ASSERT((IsConvertible<B*, A*>::value),
|
|
"B* should convert to A*");
|
|
MOZ_ASSERT((!IsConvertible<A*, B*>::value),
|
|
"A* shouldn't convert to B*");
|
|
MOZ_ASSERT((!IsConvertible<A*, C*>::value),
|
|
"A* shouldn't convert to C*");
|
|
MOZ_ASSERT((!IsConvertible<A*, D*>::value),
|
|
"A* shouldn't convert to unrelated D*");
|
|
MOZ_ASSERT((!IsConvertible<D*, A*>::value),
|
|
"D* shouldn't convert to unrelated A*");
|
|
|
|
// Instance type convertibility
|
|
MOZ_ASSERT((IsConvertible<A, A>::value),
|
|
"A is A");
|
|
MOZ_ASSERT((IsConvertible<B, A>::value),
|
|
"B converts to A");
|
|
MOZ_ASSERT((!IsConvertible<D, A>::value),
|
|
"D and A are unrelated");
|
|
MOZ_ASSERT((!IsConvertible<A, D>::value),
|
|
"A and D are unrelated");
|
|
|
|
// These cases seem to require C++11 support to properly implement them, so
|
|
// for now just disable them.
|
|
//MOZ_ASSERT((!IsConvertible<C*, A*>::value),
|
|
// "C* shouldn't convert to A* (private inheritance)");
|
|
//MOZ_ASSERT((!IsConvertible<C, A>::value),
|
|
// "C doesn't convert to A (private inheritance)");
|
|
}
|
|
|
|
int
|
|
main()
|
|
{
|
|
TestIsConvertible();
|
|
}
|