| // 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/tint/ast/fallthrough_statement.h" |
| #include "src/tint/reader/wgsl/parser_impl_test_helper.h" |
| |
| namespace tint::reader::wgsl { |
| namespace { |
| |
| TEST_F(ParserImplTest, CaseBody_Empty) { |
| auto p = parser(""); |
| auto e = p->case_body(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_FALSE(e.errored); |
| EXPECT_TRUE(e.matched); |
| EXPECT_EQ(e->statements.size(), 0u); |
| } |
| |
| TEST_F(ParserImplTest, CaseBody_Statements) { |
| auto p = parser(R"( |
| var a: i32; |
| a = 2;)"); |
| |
| auto e = p->case_body(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_FALSE(e.errored); |
| EXPECT_TRUE(e.matched); |
| ASSERT_EQ(e->statements.size(), 2u); |
| EXPECT_TRUE(e->statements[0]->Is<ast::VariableDeclStatement>()); |
| EXPECT_TRUE(e->statements[1]->Is<ast::AssignmentStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, CaseBody_InvalidStatement) { |
| auto p = parser("a ="); |
| auto e = p->case_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| } |
| |
| TEST_F(ParserImplTest, CaseBody_Fallthrough) { |
| auto p = parser("fallthrough;"); |
| auto e = p->case_body(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_FALSE(e.errored); |
| EXPECT_TRUE(e.matched); |
| ASSERT_EQ(e->statements.size(), 1u); |
| EXPECT_TRUE(e->statements[0]->Is<ast::FallthroughStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, CaseBody_Fallthrough_MissingSemicolon) { |
| auto p = parser("fallthrough"); |
| auto e = p->case_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:12: expected ';' for fallthrough statement"); |
| } |
| |
| } // namespace |
| } // namespace tint::reader::wgsl |