| // 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 "src/ast/fallthrough_statement.h" |
| #include "src/writer/hlsl/test_helper.h" |
| |
| namespace tint { |
| namespace writer { |
| namespace hlsl { |
| namespace { |
| |
| using HlslGeneratorImplTest_Case = TestHelper; |
| |
| TEST_F(HlslGeneratorImplTest_Case, Emit_Case) { |
| auto* s = Switch(1, Case(Literal(5), Block(create<ast::BreakStatement>())), |
| DefaultCase()); |
| WrapInFunction(s); |
| |
| GeneratorImpl& gen = Build(); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(s, 0)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( case 5: { |
| break; |
| } |
| )"); |
| } |
| |
| TEST_F(HlslGeneratorImplTest_Case, Emit_Case_BreaksByDefault) { |
| auto* s = Switch(1, Case(Literal(5), Block()), DefaultCase()); |
| WrapInFunction(s); |
| |
| GeneratorImpl& gen = Build(); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(s, 0)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( case 5: { |
| break; |
| } |
| )"); |
| } |
| |
| TEST_F(HlslGeneratorImplTest_Case, Emit_Case_WithFallthrough) { |
| auto* s = |
| Switch(1, // |
| Case(Literal(4), Block(create<ast::FallthroughStatement>())), // |
| Case(Literal(5), Block(create<ast::ReturnStatement>())), // |
| DefaultCase()); |
| WrapInFunction(s); |
| |
| GeneratorImpl& gen = Build(); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(s, 0)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( case 4: { |
| /* fallthrough */ |
| { |
| return; |
| } |
| break; |
| } |
| )"); |
| } |
| |
| TEST_F(HlslGeneratorImplTest_Case, Emit_Case_MultipleSelectors) { |
| auto* s = Switch( |
| 1, Case({Literal(5), Literal(6)}, Block(create<ast::BreakStatement>())), |
| DefaultCase()); |
| WrapInFunction(s); |
| |
| GeneratorImpl& gen = Build(); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(s, 0)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( case 5: |
| case 6: { |
| break; |
| } |
| )"); |
| } |
| |
| TEST_F(HlslGeneratorImplTest_Case, Emit_Case_Default) { |
| auto* s = Switch(1, DefaultCase(Block(create<ast::BreakStatement>()))); |
| WrapInFunction(s); |
| |
| GeneratorImpl& gen = Build(); |
| |
| gen.increment_indent(); |
| |
| ASSERT_TRUE(gen.EmitCase(s, 0)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"( default: { |
| break; |
| } |
| )"); |
| } |
| |
| } // namespace |
| } // namespace hlsl |
| } // namespace writer |
| } // namespace tint |