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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/writer/wgsl/test_helper.h"
namespace tint {
namespace writer {
namespace wgsl {
namespace {
using WgslGeneratorImplTest = TestHelper;
TEST_F(WgslGeneratorImplTest, EmitExpression_MemberAccessor) {
auto* s = Structure("Data", {Member("mem", ty.f32())});
Global("str", ty.Of(s), ast::StorageClass::kPrivate);
auto* expr = MemberAccessor("str", "mem");
WrapInFunction(expr);
GeneratorImpl& gen = Build();
std::stringstream out;
ASSERT_TRUE(gen.EmitExpression(out, expr)) << gen.error();
EXPECT_EQ(out.str(), "str.mem");
}
TEST_F(WgslGeneratorImplTest, EmitExpression_MemberAccessor_OfDref) {
auto* s = Structure("Data", {Member("mem", ty.f32())});
Global("str", ty.Of(s), ast::StorageClass::kPrivate);
auto* p = Const("p", nullptr, AddressOf("str"));
auto* expr = MemberAccessor(Deref("p"), "mem");
WrapInFunction(p, expr);
GeneratorImpl& gen = Build();
std::stringstream out;
ASSERT_TRUE(gen.EmitExpression(out, expr)) << gen.error();
EXPECT_EQ(out.str(), "(*(p)).mem");
}
} // namespace
} // namespace wgsl
} // namespace writer
} // namespace tint