Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5 | #include <stdint.h> |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6 | #include "src/base/flags.h" |
| 7 | #include "testing/gtest/include/gtest/gtest.h" |
| 8 | |
| 9 | namespace v8 { |
| 10 | namespace base { |
| 11 | |
| 12 | namespace { |
| 13 | |
| 14 | enum Flag1 { |
| 15 | kFlag1None = 0, |
| 16 | kFlag1First = 1u << 1, |
| 17 | kFlag1Second = 1u << 2, |
| 18 | kFlag1All = kFlag1None | kFlag1First | kFlag1Second |
| 19 | }; |
| 20 | typedef Flags<Flag1> Flags1; |
| 21 | |
| 22 | |
| 23 | DEFINE_OPERATORS_FOR_FLAGS(Flags1) |
| 24 | |
| 25 | |
| 26 | Flags1 bar(Flags1 flags1) { return flags1; } |
| 27 | |
| 28 | } // namespace |
| 29 | |
| 30 | |
| 31 | TEST(FlagsTest, BasicOperations) { |
| 32 | Flags1 a; |
| 33 | EXPECT_EQ(kFlag1None, static_cast<int>(a)); |
| 34 | a |= kFlag1First; |
| 35 | EXPECT_EQ(kFlag1First, static_cast<int>(a)); |
| 36 | a = a | kFlag1Second; |
| 37 | EXPECT_EQ(kFlag1All, static_cast<int>(a)); |
| 38 | a &= kFlag1Second; |
| 39 | EXPECT_EQ(kFlag1Second, static_cast<int>(a)); |
| 40 | a = kFlag1None & a; |
| 41 | EXPECT_EQ(kFlag1None, static_cast<int>(a)); |
| 42 | a ^= (kFlag1All | kFlag1None); |
| 43 | EXPECT_EQ(kFlag1All, static_cast<int>(a)); |
| 44 | Flags1 b = ~a; |
| 45 | EXPECT_EQ(kFlag1All, static_cast<int>(a)); |
| 46 | EXPECT_EQ(~static_cast<int>(a), static_cast<int>(b)); |
| 47 | Flags1 c = a; |
| 48 | EXPECT_EQ(a, c); |
| 49 | EXPECT_NE(a, b); |
| 50 | EXPECT_EQ(a, bar(a)); |
| 51 | EXPECT_EQ(a, bar(kFlag1All)); |
| 52 | } |
| 53 | |
| 54 | |
| 55 | namespace { |
| 56 | namespace foo { |
| 57 | |
| 58 | enum Option { |
| 59 | kNoOptions = 0, |
| 60 | kOption1 = 1, |
| 61 | kOption2 = 2, |
| 62 | kAllOptions = kNoOptions | kOption1 | kOption2 |
| 63 | }; |
| 64 | typedef Flags<Option> Options; |
| 65 | |
| 66 | } // namespace foo |
| 67 | |
| 68 | |
| 69 | DEFINE_OPERATORS_FOR_FLAGS(foo::Options) |
| 70 | |
| 71 | } // namespace |
| 72 | |
| 73 | |
| 74 | TEST(FlagsTest, NamespaceScope) { |
| 75 | foo::Options options; |
| 76 | options ^= foo::kNoOptions; |
| 77 | options |= foo::kOption1 | foo::kOption2; |
| 78 | EXPECT_EQ(foo::kAllOptions, static_cast<int>(options)); |
| 79 | } |
| 80 | |
| 81 | |
| 82 | namespace { |
| 83 | |
| 84 | struct Foo { |
| 85 | enum Enum { kEnum1 = 1, kEnum2 = 2 }; |
| 86 | typedef Flags<Enum, uint32_t> Enums; |
| 87 | }; |
| 88 | |
| 89 | |
| 90 | DEFINE_OPERATORS_FOR_FLAGS(Foo::Enums) |
| 91 | |
| 92 | } // namespace |
| 93 | |
| 94 | |
| 95 | TEST(FlagsTest, ClassScope) { |
| 96 | Foo::Enums enums; |
| 97 | enums |= Foo::kEnum1; |
| 98 | enums |= Foo::kEnum2; |
| 99 | EXPECT_TRUE(enums & Foo::kEnum1); |
| 100 | EXPECT_TRUE(enums & Foo::kEnum2); |
| 101 | } |
| 102 | |
| 103 | } // namespace base |
| 104 | } // namespace v8 |