blob: 06904eee03ef864301d35a60bdfd0668e7e75ad7 [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"
#include "src/writer/wgsl/test_helper.h"
namespace tint {
namespace writer {
namespace wgsl {
namespace {
using WgslGeneratorImplTest = TestHelper;
TEST_F(WgslGeneratorImplTest, Emit_Switch) {
auto* def_body = create<ast::BlockStatement>();
def_body->append(create<ast::BreakStatement>());
auto* def = create<ast::CaseStatement>(def_body);
ast::type::I32Type i32;
ast::CaseSelectorList case_val;
case_val.push_back(create<ast::SintLiteral>(&i32, 5));
auto* case_body = create<ast::BlockStatement>();
case_body->append(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 = create<ast::IdentifierExpression>("cond");
ast::SwitchStatement s(cond, body);
gen.increment_indent();
ASSERT_TRUE(gen.EmitStatement(&s)) << gen.error();
EXPECT_EQ(gen.result(), R"( switch(cond) {
case 5: {
break;
}
default: {
break;
}
}
)");
}
} // namespace
} // namespace wgsl
} // namespace writer
} // namespace tint