blob: 090380e993b1f681a356713b062f71717df1015b [file] [log] [blame]
// 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/break_statement.h"
#include "src/ast/case_statement.h"
#include "src/ast/identifier_expression.h"
#include "src/ast/sint_literal.h"
#include "src/ast/switch_statement.h"
#include "src/ast/type/i32_type.h"
#include "src/writer/wgsl/generator_impl.h"
namespace tint {
namespace writer {
namespace wgsl {
namespace {
using WgslGeneratorImplTest = testing::Test;
TEST_F(WgslGeneratorImplTest, Emit_Switch) {
auto def = std::make_unique<ast::CaseStatement>();
ast::StatementList def_body;
def_body.push_back(std::make_unique<ast::BreakStatement>());
def->set_body(std::move(def_body));
ast::type::I32Type i32;
ast::CaseSelectorList case_val;
case_val.push_back(std::make_unique<ast::SintLiteral>(&i32, 5));
ast::StatementList case_body;
case_body.push_back(std::make_unique<ast::BreakStatement>());
auto case_stmt = std::make_unique<ast::CaseStatement>(std::move(case_val),
std::move(case_body));
ast::CaseStatementList body;
body.push_back(std::move(case_stmt));
body.push_back(std::move(def));
auto cond = std::make_unique<ast::IdentifierExpression>("cond");
ast::SwitchStatement s(std::move(cond), std::move(body));
GeneratorImpl g;
g.increment_indent();
ASSERT_TRUE(g.EmitStatement(&s)) << g.error();
EXPECT_EQ(g.result(), R"( switch(cond) {
case 5: {
break;
}
default: {
break;
}
}
)");
}
} // namespace
} // namespace wgsl
} // namespace writer
} // namespace tint