| //===--- OptionSetTest.cpp ------------------------------------------------===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "swift/Basic/OptionSet.h" |
| #include "swift/Basic/Range.h" |
| #include "swift/Basic/ValueEnumerator.h" |
| #include "gtest/gtest.h" |
| |
| using namespace swift; |
| |
| TEST(OptionSet, contains) { |
| enum class Flags { A = 1 << 0, B = 1 << 1, C = 1 << 2 }; |
| |
| OptionSet<Flags> emptySet; |
| OptionSet<Flags> aSet = Flags::A; |
| OptionSet<Flags> abSet = aSet | Flags::B; |
| OptionSet<Flags> abcSet = abSet | Flags::C; |
| OptionSet<Flags> bcSet = abcSet - Flags::A; |
| OptionSet<Flags> cSet = bcSet - Flags::B; |
| |
| EXPECT_TRUE(emptySet.contains(emptySet)); |
| EXPECT_FALSE(emptySet.contains(aSet)); |
| EXPECT_FALSE(emptySet.contains(abSet)); |
| EXPECT_FALSE(emptySet.contains(abcSet)); |
| EXPECT_FALSE(emptySet.contains(bcSet)); |
| EXPECT_FALSE(emptySet.contains(cSet)); |
| |
| EXPECT_TRUE(aSet.contains(emptySet)); |
| EXPECT_TRUE(aSet.contains(aSet)); |
| EXPECT_FALSE(aSet.contains(abSet)); |
| EXPECT_FALSE(aSet.contains(abcSet)); |
| EXPECT_FALSE(aSet.contains(bcSet)); |
| EXPECT_FALSE(aSet.contains(cSet)); |
| |
| EXPECT_TRUE(abSet.contains(emptySet)); |
| EXPECT_TRUE(abSet.contains(aSet)); |
| EXPECT_TRUE(abSet.contains(abSet)); |
| EXPECT_FALSE(abSet.contains(abcSet)); |
| EXPECT_FALSE(abSet.contains(bcSet)); |
| EXPECT_FALSE(abSet.contains(cSet)); |
| |
| EXPECT_TRUE(abcSet.contains(emptySet)); |
| EXPECT_TRUE(abcSet.contains(aSet)); |
| EXPECT_TRUE(abcSet.contains(abSet)); |
| EXPECT_TRUE(abcSet.contains(abcSet)); |
| EXPECT_TRUE(abcSet.contains(bcSet)); |
| EXPECT_TRUE(abcSet.contains(cSet)); |
| } |
| |
| TEST(OptionSet, intptr_t) { |
| enum class Small : int8_t { A = 1 << 0 }; |
| |
| OptionSet<Small> small = Small::A; |
| EXPECT_EQ(static_cast<intptr_t>(Small::A), static_cast<intptr_t>(small)); |
| |
| enum class UPtr : uintptr_t { A = std::numeric_limits<uintptr_t>::max() }; |
| |
| OptionSet<UPtr> uptr = UPtr::A; |
| EXPECT_EQ(static_cast<intptr_t>(UPtr::A), static_cast<intptr_t>(uptr)); |
| |
| enum class Ptr : intptr_t { A = std::numeric_limits<intptr_t>::min() }; |
| |
| OptionSet<Ptr> ptr = Ptr::A; |
| EXPECT_EQ(static_cast<intptr_t>(Ptr::A), static_cast<intptr_t>(ptr)); |
| } |
| |
| TEST(OptionSet, intptr_t_isConstructible) { |
| // First check that std::is_constructible counts explicit conversion |
| // operators. |
| class AlwaysConvertible { |
| public: |
| explicit operator intptr_t() const { return 0; } |
| }; |
| |
| if (!std::is_constructible<intptr_t, AlwaysConvertible>::value) { |
| // std::is_constructible doesn't test what we want it to. Just exit early. |
| return; |
| } |
| |
| enum class LongLong : unsigned long long { A = 1 }; |
| bool isConvertible = |
| std::is_constructible<intptr_t, OptionSet<LongLong>>::value; |
| |
| if (sizeof(intptr_t) < sizeof(long long)) { |
| EXPECT_FALSE(isConvertible); |
| } else { |
| EXPECT_TRUE(isConvertible); |
| } |
| } |