| //===--- Enum.cpp - Enum tests --------------------------------------------===// |
| // |
| // 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/Runtime/Metadata.h" |
| #include "swift/Runtime/Enum.h" |
| #include "gtest/gtest.h" |
| |
| using namespace swift; |
| |
| SWIFT_CC(swift) |
| static unsigned byte_getExtraInhabitantTag(const OpaqueValue *src, |
| unsigned numXI, |
| const Metadata *self) { |
| assert(numXI == 2); |
| uint8_t byte = *reinterpret_cast<const uint8_t*>(src); |
| if (byte > 253) |
| return byte - 253; |
| return 0; |
| } |
| |
| static unsigned byte_getEnumTagSinglePayload(const OpaqueValue *value, |
| unsigned numEmptyCases, |
| const Metadata *self) { |
| return swift_getEnumTagSinglePayloadGeneric(value, numEmptyCases, self, |
| byte_getExtraInhabitantTag); |
| } |
| |
| SWIFT_CC(swift) |
| static void byte_storeExtraInhabitantTag(OpaqueValue *dest, unsigned tag, |
| unsigned numXI, const Metadata *self) { |
| assert(numXI == 2); |
| assert(tag > 0 && tag <= 2); |
| *reinterpret_cast<uint8_t*>(dest) = 253 + tag; |
| } |
| |
| static void byte_storeEnumTagSinglePayload(OpaqueValue *value, |
| unsigned tag, |
| unsigned numEmptyCases, |
| const Metadata *self) { |
| swift_storeEnumTagSinglePayloadGeneric(value, tag, numEmptyCases, self, |
| byte_storeExtraInhabitantTag); |
| } |
| |
| // Just use the normal operations for copying i8. |
| #define byte_initializeBufferWithCopyOfBuffer \ |
| VALUE_WITNESS_SYM(Bi8_).initializeBufferWithCopyOfBuffer |
| #define byte_destroy VALUE_WITNESS_SYM(Bi8_).destroy |
| #define byte_initializeWithCopy VALUE_WITNESS_SYM(Bi8_).initializeWithCopy |
| #define byte_assignWithCopy VALUE_WITNESS_SYM(Bi8_).assignWithCopy |
| #define byte_initializeWithTake VALUE_WITNESS_SYM(Bi8_).initializeWithTake |
| #define byte_assignWithTake VALUE_WITNESS_SYM(Bi8_).assignWithTake |
| |
| // Mock up a value witness table for Builtin.Int8 will 254 and 255 as extra |
| // inhabitants. |
| ValueWitnessTable Int8WithExtraInhabitantValueWitness = { |
| #define WANT_ONLY_REQUIRED_VALUE_WITNESSES |
| #define VALUE_WITNESS(LOWER_ID, UPPER_ID) byte_##LOWER_ID, |
| #define DATA_VALUE_WITNESS(LOWER_ID, UPPER_ID, TYPE) |
| #include "swift/ABI/ValueWitness.def" |
| VALUE_WITNESS_SYM(Bi8_).size, |
| VALUE_WITNESS_SYM(Bi8_).stride, |
| VALUE_WITNESS_SYM(Bi8_).flags, |
| /*extraInhabitantCount*/ 2 |
| }; |
| |
| FullMetadata<OpaqueMetadata> XI_TMBi8_ = { |
| {&Int8WithExtraInhabitantValueWitness}, |
| {{MetadataKind::Opaque}} |
| }; |
| |
| const OpaqueValue *asOpaque(const void *v) { |
| return reinterpret_cast<const OpaqueValue*>(v); |
| } |
| OpaqueValue *asOpaque(void *v) { |
| return reinterpret_cast<OpaqueValue*>(v); |
| } |
| |
| int test_getEnumCaseSinglePayload(std::initializer_list<uint8_t> repr, |
| const FullOpaqueMetadata &metadata, |
| unsigned numEmptyCases) { |
| return metadata.base.vw_getEnumTagSinglePayload(asOpaque(repr.begin()), |
| numEmptyCases); |
| } |
| |
| TEST(EnumTest, getEnumCaseSinglePayload) { |
| // Test with no XI. |
| ASSERT_EQ(0, test_getEnumCaseSinglePayload({0, 0}, METADATA_SYM(Bi8_), 512)); |
| ASSERT_EQ(0, test_getEnumCaseSinglePayload({255, 0}, METADATA_SYM(Bi8_), 512)); |
| |
| ASSERT_EQ(1, test_getEnumCaseSinglePayload({0, 1}, METADATA_SYM(Bi8_), 512)); |
| ASSERT_EQ(256, test_getEnumCaseSinglePayload({255, 1}, METADATA_SYM(Bi8_), 512)); |
| ASSERT_EQ(512, test_getEnumCaseSinglePayload({255, 2}, METADATA_SYM(Bi8_), 512)); |
| |
| ASSERT_EQ(0, test_getEnumCaseSinglePayload({0, 0, 0}, METADATA_SYM(Bi8_), |
| 128*1024)); |
| ASSERT_EQ(0, test_getEnumCaseSinglePayload({255, 0, 0}, METADATA_SYM(Bi8_), |
| 128*1024)); |
| #if defined(__BIG_ENDIAN__) |
| ASSERT_EQ(65535 - 255 + 1, test_getEnumCaseSinglePayload( |
| {0, 1, 0}, METADATA_SYM(Bi8_), 128 * 1024)); |
| #else |
| ASSERT_EQ(65535 - 255 + 1, test_getEnumCaseSinglePayload( |
| {0, 0, 1}, METADATA_SYM(Bi8_), 128 * 1024)); |
| #endif |
| |
| // Test with XI. |
| ASSERT_EQ(0, test_getEnumCaseSinglePayload({0}, XI_TMBi8_, 2)); |
| ASSERT_EQ(0, test_getEnumCaseSinglePayload({253}, XI_TMBi8_, 2)); |
| ASSERT_EQ(1, test_getEnumCaseSinglePayload({254}, XI_TMBi8_, 2)); |
| ASSERT_EQ(2, test_getEnumCaseSinglePayload({255}, XI_TMBi8_, 2)); |
| |
| ASSERT_EQ(0, test_getEnumCaseSinglePayload({0, 0}, XI_TMBi8_, 4)); |
| ASSERT_EQ(0, test_getEnumCaseSinglePayload({253, 0}, XI_TMBi8_, 4)); |
| ASSERT_EQ(1, test_getEnumCaseSinglePayload({254, 0}, XI_TMBi8_, 4)); |
| ASSERT_EQ(2, test_getEnumCaseSinglePayload({255, 0}, XI_TMBi8_, 4)); |
| ASSERT_EQ(3, test_getEnumCaseSinglePayload({0, 1}, XI_TMBi8_, 4)); |
| ASSERT_EQ(4, test_getEnumCaseSinglePayload({1, 1}, XI_TMBi8_, 4)); |
| } |
| |
| bool test_storeEnumTagSinglePayload(std::initializer_list<uint8_t> after, |
| std::initializer_list<uint8_t> before, |
| const FullOpaqueMetadata &metadata, |
| unsigned whichCase, |
| unsigned numEmptyCases) { |
| assert(after.size() == before.size()); |
| |
| std::vector<uint8_t> buf; |
| buf.resize(before.size()); |
| memcpy(buf.data(), before.begin(), before.size()); |
| |
| metadata.base.vw_storeEnumTagSinglePayload(asOpaque(buf.data()), |
| whichCase, |
| numEmptyCases); |
| |
| return memcmp(buf.data(), after.begin(), after.size()) == 0; |
| } |
| |
| TEST(EnumTest, storeEnumTagSinglePayload) { |
| // Test with no XI. |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({219, 0}, {219, 123}, |
| METADATA_SYM(Bi8_), 0, 512)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({0, 1}, {219, 123}, |
| METADATA_SYM(Bi8_), 1, 512)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({255, 1}, {219, 123}, |
| METADATA_SYM(Bi8_), 256, 512)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({255, 2}, {219, 123}, |
| METADATA_SYM(Bi8_), 512, 512)); |
| |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({219, 0, 0}, {219, 123, 77}, |
| METADATA_SYM(Bi8_), 0, 128*1024)); |
| #if defined(__BIG_ENDIAN__) |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({0, 0, 1}, {219, 123, 77}, |
| METADATA_SYM(Bi8_), 1, 128*1024)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({255, 0, 1}, {219, 123, 77}, |
| METADATA_SYM(Bi8_), 256, 128*1024)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({0, 0, 2}, {219, 123, 77}, |
| METADATA_SYM(Bi8_), 257, 128*1024)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({255, 2, 0}, {219, 123, 77}, |
| METADATA_SYM(Bi8_), 128*1024, 128*1024)); |
| #else |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({0, 1, 0}, {219, 123, 77}, |
| METADATA_SYM(Bi8_), 1, 128*1024)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({255, 1, 0}, {219, 124, 77}, |
| METADATA_SYM(Bi8_), 256, 128*1024)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({0, 2, 0}, {219, 123, 77}, |
| METADATA_SYM(Bi8_), 257, 128*1024)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload( |
| {255, 0, 2}, {219, 123, 77}, METADATA_SYM(Bi8_), 128 * 1024, 128 * 1024)); |
| #endif |
| |
| // Test with XI. |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({219}, {219}, |
| XI_TMBi8_, 0, 2)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({254}, {219}, |
| XI_TMBi8_, 1, 2)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({255}, {219}, |
| XI_TMBi8_, 2, 2)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({219, 0}, {219, 123}, |
| XI_TMBi8_, 0, 4)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({254, 0}, {219, 123}, |
| XI_TMBi8_, 1, 4)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({255, 0}, {219, 123}, |
| XI_TMBi8_, 2, 4)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({0, 1}, {219, 123}, |
| XI_TMBi8_, 3, 4)); |
| ASSERT_TRUE(test_storeEnumTagSinglePayload({1, 1}, {219, 123}, |
| XI_TMBi8_, 4, 4)); |
| } |
