Update Kokkos library in LAMMPS to v3.7.0

lib/kokkos/core/unit_test/TestViewHooks.hpp

@@ -0,0 +1,159 @@
+/*
+//@HEADER
+// ************************************************************************
+//
+//                        Kokkos v. 3.0
+//       Copyright (2020) National Technology & Engineering
+//               Solutions of Sandia, LLC (NTESS).
+//
+// Under the terms of Contract DE-NA0003525 with NTESS,
+// the U.S. Government retains certain rights in this software.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// 1. Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+//
+// 3. Neither the name of the Corporation nor the names of the
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY NTESS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NTESS OR THE
+// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Questions? Contact Christian R. Trott (crtrott@sandia.gov)
+//
+// ************************************************************************
+//@HEADER
+*/
+#ifndef TESTVIEWHOOKS_HPP_
+#define TESTVIEWHOOKS_HPP_
+
+#include <gtest/gtest.h>
+#include <Kokkos_Core.hpp>
+
+namespace Test {
+template <class DeviceType>
+struct TestViewHooks {
+  struct TestSubscriber;
+
+  static_assert(
+      Kokkos::Experimental::is_hooks_policy<
+          Kokkos::Experimental::SubscribableViewHooks<TestSubscriber> >::value,
+      "Must be a hooks policy");
+
+  using test_view_type =
+      Kokkos::View<double **,
+                   Kokkos::Experimental::SubscribableViewHooks<TestSubscriber>,
+                   DeviceType>;
+
+  struct TestSubscriber {
+    static test_view_type *self_ptr;
+    static const test_view_type *other_ptr;
+
+    template <typename View>
+    static void copy_constructed(View &self, const View &other) {
+      self_ptr  = &self;
+      other_ptr = &other;
+    }
+
+    template <typename View>
+    static void move_constructed(View &self, const View &other) {
+      self_ptr  = &self;
+      other_ptr = &other;
+    }
+
+    template <typename View>
+    static void copy_assigned(View &self, const View &other) {
+      self_ptr  = &self;
+      other_ptr = &other;
+    }
+
+    template <typename View>
+    static void move_assigned(View &self, const View &other) {
+      self_ptr  = &self;
+      other_ptr = &other;
+    }
+
+    static void reset() {
+      self_ptr  = nullptr;
+      other_ptr = nullptr;
+    }
+  };
+
+  static void testViewHooksCopyConstruct() {
+    TestSubscriber::reset();
+    test_view_type testa;
+
+    test_view_type testb(testa);
+    EXPECT_EQ(TestSubscriber::self_ptr, &testb);
+    EXPECT_EQ(TestSubscriber::other_ptr, &testa);
+  }
+
+  static void testViewHooksMoveConstruct() {
+    TestSubscriber::reset();
+    test_view_type testa;
+
+    test_view_type testb(std::move(testa));
+    EXPECT_EQ(TestSubscriber::self_ptr, &testb);
+
+    // This is valid, even if the view is moved-from
+    EXPECT_EQ(TestSubscriber::other_ptr, &testa);
+  }
+
+  static void testViewHooksCopyAssign() {
+    TestSubscriber::reset();
+    test_view_type testa;
+
+    test_view_type testb;
+    testb = testa;
+    EXPECT_EQ(TestSubscriber::self_ptr, &testb);
+    EXPECT_EQ(TestSubscriber::other_ptr, &testa);
+  }
+
+  static void testViewHooksMoveAssign() {
+    TestSubscriber::reset();
+    test_view_type testa;
+
+    test_view_type testb;
+    testb = std::move(testa);
+    EXPECT_EQ(TestSubscriber::self_ptr, &testb);
+
+    // This is valid, even if the view is moved-from
+    EXPECT_EQ(TestSubscriber::other_ptr, &testa);
+  }
+};
+
+template <class DeviceType>
+typename TestViewHooks<DeviceType>::test_view_type
+    *TestViewHooks<DeviceType>::TestSubscriber::self_ptr = nullptr;
+
+template <class DeviceType>
+const typename TestViewHooks<DeviceType>::test_view_type
+    *TestViewHooks<DeviceType>::TestSubscriber::other_ptr = nullptr;
+
+TEST(TEST_CATEGORY, view_hooks) {
+  using ExecSpace = TEST_EXECSPACE;
+  TestViewHooks<ExecSpace>::testViewHooksCopyConstruct();
+  TestViewHooks<ExecSpace>::testViewHooksMoveConstruct();
+  TestViewHooks<ExecSpace>::testViewHooksCopyAssign();
+  TestViewHooks<ExecSpace>::testViewHooksMoveAssign();
+}
+
+}  // namespace Test
+#endif  // TESTVIEWHOOKS_HPP_