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//===- unittests/ADT/IListNodeTest.cpp - ilist_node 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"
#include <type_traits>
using namespace llvm;
using namespace llvm::ilist_detail;
namespace {
struct Node;
struct TagA {};
struct TagB {};
TEST(IListNodeTest, Options) {
static_assert(
std::is_same<compute_node_options<Node>::type,
compute_node_options<Node, ilist_tag<void>>::type>::value,
"default tag is void");
static_assert(
!std::is_same<compute_node_options<Node, ilist_tag<TagA>>::type,
compute_node_options<Node, ilist_tag<void>>::type>::value,
"default tag is void, different from TagA");
static_assert(
!std::is_same<compute_node_options<Node, ilist_tag<TagA>>::type,
compute_node_options<Node, ilist_tag<TagB>>::type>::value,
"TagA is not TagB");
static_assert(
std::is_same<
compute_node_options<Node, ilist_sentinel_tracking<false>>::type,
compute_node_options<Node, ilist_sentinel_tracking<false>,
ilist_tag<void>>::type>::value,
"default tag is void, even with sentinel tracking off");
static_assert(
std::is_same<
compute_node_options<Node, ilist_sentinel_tracking<false>>::type,
compute_node_options<Node, ilist_tag<void>,
ilist_sentinel_tracking<false>>::type>::value,
"order shouldn't matter");
static_assert(
std::is_same<
compute_node_options<Node, ilist_sentinel_tracking<true>>::type,
compute_node_options<Node, ilist_sentinel_tracking<true>,
ilist_tag<void>>::type>::value,
"default tag is void, even with sentinel tracking on");
static_assert(
std::is_same<
compute_node_options<Node, ilist_sentinel_tracking<true>>::type,
compute_node_options<Node, ilist_tag<void>,
ilist_sentinel_tracking<true>>::type>::value,
"order shouldn't matter");
static_assert(
std::is_same<
compute_node_options<Node, ilist_sentinel_tracking<true>,
ilist_tag<TagA>>::type,
compute_node_options<Node, ilist_tag<TagA>,
ilist_sentinel_tracking<true>>::type>::value,
"order shouldn't matter with real tags");
}
} // end namespace
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