// 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 #include "gtest/gtest.h" #include "src/ast/binding_decoration.h" #include "src/ast/builtin_decoration.h" #include "src/ast/decorated_variable.h" #include "src/ast/location_decoration.h" #include "src/ast/set_decoration.h" #include "src/ast/type/f32_type.h" #include "src/ast/variable_decoration.h" #include "src/writer/wgsl/generator_impl.h" namespace tint { namespace writer { namespace wgsl { namespace { using WgslGeneratorImplTest = testing::Test; TEST_F(WgslGeneratorImplTest, EmitVariable) { ast::type::F32Type f32; ast::Variable v("a", ast::StorageClass::kNone, &f32); GeneratorImpl g; ASSERT_TRUE(g.EmitVariable(&v)) << g.error(); EXPECT_EQ(g.result(), R"(var a : f32; )"); } TEST_F(WgslGeneratorImplTest, EmitVariable_StorageClass) { ast::type::F32Type f32; ast::Variable v("a", ast::StorageClass::kInput, &f32); GeneratorImpl g; ASSERT_TRUE(g.EmitVariable(&v)) << g.error(); EXPECT_EQ(g.result(), R"(var a : f32; )"); } TEST_F(WgslGeneratorImplTest, EmitVariable_Decorated) { ast::type::F32Type f32; ast::VariableDecorationList decos; decos.push_back(std::make_unique(2)); ast::DecoratedVariable dv; dv.set_name("a"); dv.set_type(&f32); dv.set_decorations(std::move(decos)); GeneratorImpl g; ASSERT_TRUE(g.EmitVariable(&dv)) << g.error(); EXPECT_EQ(g.result(), R"([[location(2)]] var a : f32; )"); } TEST_F(WgslGeneratorImplTest, EmitVariable_Decorated_Multiple) { ast::type::F32Type f32; ast::VariableDecorationList decos; decos.push_back( std::make_unique(ast::Builtin::kPosition)); decos.push_back(std::make_unique(0)); decos.push_back(std::make_unique(1)); decos.push_back(std::make_unique(2)); ast::DecoratedVariable dv; dv.set_name("a"); dv.set_type(&f32); dv.set_decorations(std::move(decos)); GeneratorImpl g; ASSERT_TRUE(g.EmitVariable(&dv)) << g.error(); EXPECT_EQ( g.result(), R"([[builtin(position), binding(0), set(1), location(2)]] var a : f32; )"); } TEST_F(WgslGeneratorImplTest, EmitVariable_Constructor) { auto ident = std::make_unique("initializer"); ast::type::F32Type f32; ast::Variable v("a", ast::StorageClass::kNone, &f32); v.set_constructor(std::move(ident)); GeneratorImpl g; ASSERT_TRUE(g.EmitVariable(&v)) << g.error(); EXPECT_EQ(g.result(), R"(var a : f32 = initializer; )"); } TEST_F(WgslGeneratorImplTest, EmitVariable_Const) { auto ident = std::make_unique("initializer"); ast::type::F32Type f32; ast::Variable v("a", ast::StorageClass::kNone, &f32); v.set_constructor(std::move(ident)); v.set_is_const(true); GeneratorImpl g; ASSERT_TRUE(g.EmitVariable(&v)) << g.error(); EXPECT_EQ(g.result(), R"(const a : f32 = initializer; )"); } } // namespace } // namespace wgsl } // namespace writer } // namespace tint