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// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <memory>
#include "gtest/gtest.h"
#include "src/ast/binary_expression.h"
#include "src/ast/identifier_expression.h"
#include "src/writer/wgsl/generator_impl.h"
namespace tint {
namespace writer {
namespace wgsl {
namespace {
struct BinaryData {
const char* result;
ast::BinaryOp op;
};
inline std::ostream& operator<<(std::ostream& out, BinaryData data) {
out << data.op;
return out;
}
using BinaryTest = testing::TestWithParam<BinaryData>;
TEST_P(BinaryTest, Emit) {
auto params = GetParam();
auto left = std::make_unique<ast::IdentifierExpression>("left");
auto right = std::make_unique<ast::IdentifierExpression>("right");
ast::BinaryExpression expr(params.op, std::move(left), std::move(right));
GeneratorImpl g;
ASSERT_TRUE(g.EmitExpression(&expr)) << g.error();
EXPECT_EQ(g.result(), params.result);
}
INSTANTIATE_TEST_SUITE_P(
GeneratorImplTest,
BinaryTest,
testing::Values(
BinaryData{"(left & right)", ast::BinaryOp::kAnd},
BinaryData{"(left | right)", ast::BinaryOp::kOr},
BinaryData{"(left ^ right)", ast::BinaryOp::kXor},
BinaryData{"(left && right)", ast::BinaryOp::kLogicalAnd},
BinaryData{"(left || right)", ast::BinaryOp::kLogicalOr},
BinaryData{"(left == right)", ast::BinaryOp::kEqual},
BinaryData{"(left != right)", ast::BinaryOp::kNotEqual},
BinaryData{"(left < right)", ast::BinaryOp::kLessThan},
BinaryData{"(left > right)", ast::BinaryOp::kGreaterThan},
BinaryData{"(left <= right)", ast::BinaryOp::kLessThanEqual},
BinaryData{"(left >= right)", ast::BinaryOp::kGreaterThanEqual},
BinaryData{"(left << right)", ast::BinaryOp::kShiftLeft},
BinaryData{"(left >> right)", ast::BinaryOp::kShiftRight},
BinaryData{"(left >>> right)", ast::BinaryOp::kShiftRightArith},
BinaryData{"(left + right)", ast::BinaryOp::kAdd},
BinaryData{"(left - right)", ast::BinaryOp::kSubtract},
BinaryData{"(left * right)", ast::BinaryOp::kMultiply},
BinaryData{"(left / right)", ast::BinaryOp::kDivide},
BinaryData{"(left % right)", ast::BinaryOp::kModulo}));
} // namespace
} // namespace wgsl
} // namespace writer
} // namespace tint