llvm/unittests/ADT/IListSentinelTest.cpp
Chandler Carruth 6b547686c5 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351636 91177308-0d34-0410-b5e6-96231b3b80d8
2019-01-19 08:50:56 +00:00

63 lines
1.7 KiB
C++

//===- unittests/ADT/IListSentinelTest.cpp - ilist_sentinel unit tests ----===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/ilist_node.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
template <class T, class... Options> struct PickSentinel {
typedef ilist_sentinel<
typename ilist_detail::compute_node_options<T, Options...>::type>
type;
};
class Node : public ilist_node<Node> {};
class TrackingNode : public ilist_node<Node, ilist_sentinel_tracking<true>> {};
typedef PickSentinel<Node>::type Sentinel;
typedef PickSentinel<Node, ilist_sentinel_tracking<true>>::type
TrackingSentinel;
typedef PickSentinel<Node, ilist_sentinel_tracking<false>>::type
NoTrackingSentinel;
struct LocalAccess : ilist_detail::NodeAccess {
using NodeAccess::getPrev;
using NodeAccess::getNext;
};
TEST(IListSentinelTest, DefaultConstructor) {
Sentinel S;
EXPECT_EQ(&S, LocalAccess::getPrev(S));
EXPECT_EQ(&S, LocalAccess::getNext(S));
#if LLVM_ENABLE_ABI_BREAKING_CHECKS
EXPECT_TRUE(S.isKnownSentinel());
#else
EXPECT_FALSE(S.isKnownSentinel());
#endif
TrackingSentinel TS;
NoTrackingSentinel NTS;
EXPECT_TRUE(TS.isSentinel());
EXPECT_TRUE(TS.isKnownSentinel());
EXPECT_FALSE(NTS.isKnownSentinel());
}
TEST(IListSentinelTest, NormalNodeIsNotKnownSentinel) {
Node N;
EXPECT_EQ(nullptr, LocalAccess::getPrev(N));
EXPECT_EQ(nullptr, LocalAccess::getNext(N));
EXPECT_FALSE(N.isKnownSentinel());
TrackingNode TN;
EXPECT_FALSE(TN.isSentinel());
}
} // end namespace