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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 {
using WgslGeneratorImplTest = TestHelper;
TEST_F(WgslGeneratorImplTest, Emit_Switch) {
Global("cond", ty.i32(), ast::StorageClass::kPrivate);
auto* def_body = Block(create<ast::BreakStatement>());
auto* def = create<ast::CaseStatement>(ast::CaseSelectorList{}, def_body);
ast::CaseSelectorList case_val;
case_val.push_back(Expr(5));
auto* case_body = Block(create<ast::BreakStatement>());
auto* case_stmt = create<ast::CaseStatement>(case_val, case_body);
ast::CaseStatementList body;
body.push_back(case_stmt);
body.push_back(def);
auto* cond = Expr("cond");
auto* s = create<ast::SwitchStatement>(cond, body);
WrapInFunction(s);
GeneratorImpl& gen = Build();
gen.increment_indent();
ASSERT_TRUE(gen.EmitStatement(s)) << gen.error();
EXPECT_EQ(gen.result(), R"( switch(cond) {
case 5: {
break;
}
default: {
break;
}
}
)");
}
} // namespace
} // namespace tint::writer::wgsl