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