| // 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 "gtest/gtest.h" |
| #include "src/ast/struct.h" |
| #include "src/ast/struct_member.h" |
| #include "src/ast/struct_member_decoration.h" |
| #include "src/ast/struct_member_offset_decoration.h" |
| #include "src/ast/type/f32_type.h" |
| #include "src/ast/type/i32_type.h" |
| #include "src/ast/type/struct_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, EmitAlias_F32) { |
| ast::type::F32 f32; |
| ast::type::Alias alias("a", &f32); |
| |
| ASSERT_TRUE(gen.EmitConstructedType(&alias)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"(type a = f32; |
| )"); |
| } |
| |
| TEST_F(WgslGeneratorImplTest, EmitConstructedType_Struct) { |
| ast::type::I32 i32; |
| ast::type::F32 f32; |
| |
| ast::StructMemberList members; |
| members.push_back( |
| create<ast::StructMember>("a", &f32, ast::StructMemberDecorationList{})); |
| |
| ast::StructMemberDecorationList b_deco; |
| b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{})); |
| members.push_back(create<ast::StructMember>("b", &i32, b_deco)); |
| |
| auto* str = create<ast::Struct>(members); |
| |
| ast::type::Struct s("A", str); |
| ast::type::Alias alias("B", &s); |
| |
| ASSERT_TRUE(gen.EmitConstructedType(&s)) << gen.error(); |
| ASSERT_TRUE(gen.EmitConstructedType(&alias)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"(struct A { |
| a : f32; |
| [[offset(4)]] |
| b : i32; |
| }; |
| type B = A; |
| )"); |
| } |
| |
| TEST_F(WgslGeneratorImplTest, EmitAlias_ToStruct) { |
| ast::type::I32 i32; |
| ast::type::F32 f32; |
| |
| ast::StructMemberList members; |
| members.push_back( |
| create<ast::StructMember>("a", &f32, ast::StructMemberDecorationList{})); |
| |
| ast::StructMemberDecorationList b_deco; |
| b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{})); |
| members.push_back(create<ast::StructMember>("b", &i32, b_deco)); |
| |
| auto* str = create<ast::Struct>(members); |
| |
| ast::type::Struct s("A", str); |
| ast::type::Alias alias("B", &s); |
| |
| ASSERT_TRUE(gen.EmitConstructedType(&alias)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"(type B = A; |
| )"); |
| } |
| |
| } // namespace |
| } // namespace wgsl |
| } // namespace writer |
| } // namespace tint |