| // 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 <vector> |
| |
| #include "gtest/gtest.h" |
| #include "src/ast/identifier_expression.h" |
| #include "src/ast/type/f32_type.h" |
| #include "src/ast/variable.h" |
| #include "src/ast/variable_decl_statement.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_VariableDeclStatement) { |
| ast::type::F32 f32; |
| auto* var = |
| create<ast::Variable>(Source{}, // source |
| "a", // name |
| ast::StorageClass::kNone, // storage_class |
| &f32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{}); // decorations |
| |
| ast::VariableDeclStatement stmt(Source{}, var); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitStatement(&stmt)) << gen.error(); |
| EXPECT_EQ(gen.result(), " var a : f32;\n"); |
| } |
| |
| TEST_F(WgslGeneratorImplTest, Emit_VariableDeclStatement_Function) { |
| // Variable declarations with Function storage class don't mention their |
| // storage class. Rely on defaulting. |
| // https://github.com/gpuweb/gpuweb/issues/654 |
| ast::type::F32 f32; |
| auto* var = |
| create<ast::Variable>(Source{}, // source |
| "a", // name |
| ast::StorageClass::kFunction, // storage_class |
| &f32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{}); // decorations |
| |
| ast::VariableDeclStatement stmt(Source{}, var); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitStatement(&stmt)) << gen.error(); |
| EXPECT_EQ(gen.result(), " var a : f32;\n"); |
| } |
| |
| TEST_F(WgslGeneratorImplTest, Emit_VariableDeclStatement_Private) { |
| ast::type::F32 f32; |
| auto* var = |
| create<ast::Variable>(Source{}, // source |
| "a", // name |
| ast::StorageClass::kPrivate, // storage_class |
| &f32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{}); // decorations |
| |
| ast::VariableDeclStatement stmt(Source{}, var); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitStatement(&stmt)) << gen.error(); |
| EXPECT_EQ(gen.result(), " var<private> a : f32;\n"); |
| } |
| |
| } // namespace |
| } // namespace wgsl |
| } // namespace writer |
| } // namespace tint |