| //===- unittests/ADT/IListSentinelTest.cpp - ilist_sentinel unit tests ----===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #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 |