/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include "data_type-inl.h"
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#include "base/array_ref.h"
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#include "base/macros.h"
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#include "dex/primitive.h"
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namespace art {
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template <DataType::Type data_type, Primitive::Type primitive_type>
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static void CheckConversion() {
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static_assert(data_type == DataTypeFromPrimitive(primitive_type), "Conversion check.");
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static_assert(DataType::Size(data_type) == Primitive::ComponentSize(primitive_type),
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"Size check.");
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}
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TEST(DataType, SizeAgainstPrimitive) {
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CheckConversion<DataType::Type::kVoid, Primitive::kPrimVoid>();
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CheckConversion<DataType::Type::kBool, Primitive::kPrimBoolean>();
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CheckConversion<DataType::Type::kInt8, Primitive::kPrimByte>();
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CheckConversion<DataType::Type::kUint16, Primitive::kPrimChar>();
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CheckConversion<DataType::Type::kInt16, Primitive::kPrimShort>();
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CheckConversion<DataType::Type::kInt32, Primitive::kPrimInt>();
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CheckConversion<DataType::Type::kInt64, Primitive::kPrimLong>();
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CheckConversion<DataType::Type::kFloat32, Primitive::kPrimFloat>();
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CheckConversion<DataType::Type::kFloat64, Primitive::kPrimDouble>();
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CheckConversion<DataType::Type::kReference, Primitive::kPrimNot>();
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}
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TEST(DataType, Names) {
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#define CHECK_NAME(type) EXPECT_STREQ(#type, DataType::PrettyDescriptor(DataType::Type::k##type))
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CHECK_NAME(Void);
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CHECK_NAME(Bool);
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CHECK_NAME(Int8);
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CHECK_NAME(Uint16);
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CHECK_NAME(Int16);
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CHECK_NAME(Int32);
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CHECK_NAME(Int64);
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CHECK_NAME(Float32);
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CHECK_NAME(Float64);
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CHECK_NAME(Reference);
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#undef CHECK_NAME
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}
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TEST(DataType, IsTypeConversionImplicit) {
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static const DataType::Type kIntegralTypes[] = {
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DataType::Type::kBool,
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DataType::Type::kUint8,
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DataType::Type::kInt8,
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DataType::Type::kUint16,
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DataType::Type::kInt16,
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DataType::Type::kInt32,
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DataType::Type::kInt64,
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};
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const ArrayRef<const DataType::Type> kIntegralInputTypes(kIntegralTypes);
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// Note: kBool cannot be used as a result type.
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DCHECK_EQ(kIntegralTypes[0], DataType::Type::kBool);
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const ArrayRef<const DataType::Type> kIntegralResultTypes = kIntegralInputTypes.SubArray(1u);
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static const bool kImplicitIntegralConversions[][arraysize(kIntegralTypes)] = {
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// Bool Uint8 Int8 Uint16 Int16 Int32 Int64
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{ /* Bool N/A */ true, true, true, true, true, false },
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{ /* Uint8 N/A */ true, false, true, true, true, false },
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{ /* Int8 N/A */ false, true, false, true, true, false },
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{ /* Uint16 N/A */ false, false, true, false, true, false },
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{ /* Int16 N/A */ false, false, false, true, true, false },
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{ /* Int32 N/A */ false, false, false, false, true, false },
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{ /* Int64 N/A */ false, false, false, false, false, true },
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};
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static_assert(arraysize(kIntegralTypes) == arraysize(kImplicitIntegralConversions), "size check");
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for (size_t input_index = 0; input_index != kIntegralInputTypes.size(); ++input_index) {
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DataType::Type input_type = kIntegralInputTypes[input_index];
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for (size_t result_index = 1u; result_index != kIntegralResultTypes.size(); ++result_index) {
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DataType::Type result_type = kIntegralResultTypes[result_index];
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EXPECT_EQ(kImplicitIntegralConversions[input_index][result_index],
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DataType::IsTypeConversionImplicit(input_type, result_type))
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<< input_type << " " << result_type;
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}
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}
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for (DataType::Type input_type : kIntegralInputTypes) {
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EXPECT_FALSE(DataType::IsTypeConversionImplicit(input_type, DataType::Type::kFloat32));
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EXPECT_FALSE(DataType::IsTypeConversionImplicit(input_type, DataType::Type::kFloat64));
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}
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for (DataType::Type result_type : kIntegralResultTypes) {
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EXPECT_FALSE(DataType::IsTypeConversionImplicit(DataType::Type::kFloat32, result_type));
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EXPECT_FALSE(DataType::IsTypeConversionImplicit(DataType::Type::kFloat64, result_type));
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}
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EXPECT_TRUE(
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DataType::IsTypeConversionImplicit(DataType::Type::kFloat32, DataType::Type::kFloat32));
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EXPECT_FALSE(
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DataType::IsTypeConversionImplicit(DataType::Type::kFloat32, DataType::Type::kFloat64));
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EXPECT_FALSE(
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DataType::IsTypeConversionImplicit(DataType::Type::kFloat64, DataType::Type::kFloat32));
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EXPECT_TRUE(
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DataType::IsTypeConversionImplicit(DataType::Type::kFloat64, DataType::Type::kFloat64));
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}
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} // namespace art
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