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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 "src/tint/writer/wgsl/test_helper.h"
namespace tint::writer::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 WgslBinaryTest = TestParamHelper<BinaryData>;
TEST_P(WgslBinaryTest, Emit) {
auto params = GetParam();
auto op_ty = [&]() -> const ast::Type* {
if (params.op == ast::BinaryOp::kLogicalAnd || params.op == ast::BinaryOp::kLogicalOr) {
return ty.bool_();
} else {
return ty.u32();
}
};
GlobalVar("left", op_ty(), ast::AddressSpace::kPrivate);
GlobalVar("right", op_ty(), ast::AddressSpace::kPrivate);
auto* left = Expr("left");
auto* right = Expr("right");
auto* expr = create<ast::BinaryExpression>(params.op, left, right);
WrapInFunction(expr);
GeneratorImpl& gen = Build();
std::stringstream out;
ASSERT_TRUE(gen.EmitExpression(out, expr)) << gen.error();
EXPECT_EQ(out.str(), params.result);
}
INSTANTIATE_TEST_SUITE_P(
WgslGeneratorImplTest,
WgslBinaryTest,
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::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 tint::writer::wgsl