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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 <vector>
#include "gtest/gtest.h"
#include "src/ast/identifier_expression.h"
#include "src/ast/module.h"
#include "src/ast/unary_op_expression.h"
#include "src/writer/msl/generator_impl.h"
#include "src/writer/msl/test_helper.h"
namespace tint {
namespace writer {
namespace msl {
namespace {
struct UnaryOpData {
const char* name;
ast::UnaryOp op;
};
inline std::ostream& operator<<(std::ostream& out, UnaryOpData data) {
out << data.op;
return out;
}
using MslUnaryOpTest = TestParamHelper<UnaryOpData>;
TEST_P(MslUnaryOpTest, Emit) {
auto params = GetParam();
auto* op = create<ast::UnaryOpExpression>(params.op, Expr("expr"));
ASSERT_TRUE(gen.EmitExpression(op)) << gen.error();
EXPECT_EQ(gen.result(), std::string(params.name) + "(expr)");
}
INSTANTIATE_TEST_SUITE_P(MslGeneratorImplTest,
MslUnaryOpTest,
testing::Values(UnaryOpData{"!", ast::UnaryOp::kNot},
UnaryOpData{"-",
ast::UnaryOp::kNegation}));
} // namespace
} // namespace msl
} // namespace writer
} // namespace tint