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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 "gtest/gtest.h"
#include "src/ast/call_expression.h"
#include "src/ast/call_statement.h"
#include "src/ast/function.h"
#include "src/ast/identifier_expression.h"
#include "src/ast/module.h"
#include "src/ast/type/void_type.h"
#include "src/writer/msl/generator_impl.h"
#include "src/writer/msl/test_helper.h"
namespace tint {
namespace writer {
namespace msl {
namespace {
using MslGeneratorImplTest = TestHelper;
TEST_F(MslGeneratorImplTest, EmitExpression_Call_WithoutParams) {
ast::type::VoidType void_type;
auto* id = create<ast::IdentifierExpression>("my_func");
ast::CallExpression call(id, {});
auto* func = create<ast::Function>("my_func", ast::VariableList{}, &void_type,
create<ast::BlockStatement>());
mod.AddFunction(func);
ASSERT_TRUE(gen.EmitExpression(&call)) << gen.error();
EXPECT_EQ(gen.result(), "my_func()");
}
TEST_F(MslGeneratorImplTest, EmitExpression_Call_WithParams) {
ast::type::VoidType void_type;
auto* id = create<ast::IdentifierExpression>("my_func");
ast::ExpressionList params;
params.push_back(create<ast::IdentifierExpression>("param1"));
params.push_back(create<ast::IdentifierExpression>("param2"));
ast::CallExpression call(id, params);
auto* func = create<ast::Function>("my_func", ast::VariableList{}, &void_type,
create<ast::BlockStatement>());
mod.AddFunction(func);
ASSERT_TRUE(gen.EmitExpression(&call)) << gen.error();
EXPECT_EQ(gen.result(), "my_func(param1, param2)");
}
TEST_F(MslGeneratorImplTest, EmitStatement_Call) {
ast::type::VoidType void_type;
auto* id = create<ast::IdentifierExpression>("my_func");
ast::ExpressionList params;
params.push_back(create<ast::IdentifierExpression>("param1"));
params.push_back(create<ast::IdentifierExpression>("param2"));
ast::CallStatement call(create<ast::CallExpression>(id, params));
auto* func = create<ast::Function>("my_func", ast::VariableList{}, &void_type,
create<ast::BlockStatement>());
mod.AddFunction(func);
gen.increment_indent();
ASSERT_TRUE(gen.EmitStatement(&call)) << gen.error();
EXPECT_EQ(gen.result(), " my_func(param1, param2);\n");
}
} // namespace
} // namespace msl
} // namespace writer
} // namespace tint