| // 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/builtin_decoration.h" |
| #include "src/ast/location_decoration.h" |
| #include "src/reader/wgsl/parser_impl.h" |
| #include "src/reader/wgsl/parser_impl_test_helper.h" |
| |
| namespace tint { |
| namespace reader { |
| namespace wgsl { |
| namespace { |
| |
| TEST_F(ParserImplTest, VariableDecorationList_Parses) { |
| auto p = parser(R"([[location 4, builtin position]])"); |
| auto decos = p->variable_decoration_list(); |
| ASSERT_FALSE(p->has_error()); |
| ASSERT_EQ(decos.size(), 2); |
| ASSERT_TRUE(decos[0]->IsLocation()); |
| EXPECT_EQ(decos[0]->AsLocation()->value(), 4); |
| ASSERT_TRUE(decos[1]->IsBuiltin()); |
| EXPECT_EQ(decos[1]->AsBuiltin()->value(), ast::Builtin::kPosition); |
| } |
| |
| TEST_F(ParserImplTest, VariableDecorationList_Empty) { |
| auto p = parser(R"([[]])"); |
| auto decos = p->variable_decoration_list(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_EQ(p->error(), "1:3: empty variable decoration list"); |
| } |
| |
| TEST_F(ParserImplTest, VariableDecorationList_Invalid) { |
| auto p = parser(R"([[invalid]])"); |
| auto decos = p->variable_decoration_list(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_EQ(p->error(), "1:3: missing variable decoration for decoration list"); |
| } |
| |
| TEST_F(ParserImplTest, VariableDecorationList_ExtraComma) { |
| auto p = parser(R"([[builtin position, ]])"); |
| auto decos = p->variable_decoration_list(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_EQ(p->error(), "1:21: missing variable decoration after comma"); |
| } |
| |
| TEST_F(ParserImplTest, VariableDecorationList_MissingComma) { |
| auto p = parser(R"([[binding 4 location 5]])"); |
| auto decos = p->variable_decoration_list(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_EQ(p->error(), "1:13: missing comma in variable decoration list"); |
| } |
| |
| TEST_F(ParserImplTest, VariableDecorationList_BadDecoration) { |
| auto p = parser(R"([[location bad]])"); |
| auto decos = p->variable_decoration_list(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_EQ(p->error(), "1:12: invalid value for location decoration"); |
| } |
| |
| TEST_F(ParserImplTest, VariableDecorationList_InvalidBuiltin) { |
| auto p = parser("[[builtin invalid]]"); |
| auto decos = p->variable_decoration_list(); |
| ASSERT_TRUE(p->has_error()); |
| ASSERT_EQ(p->error(), "1:11: invalid value for builtin decoration"); |
| } |
| |
| } // namespace |
| } // namespace wgsl |
| } // namespace reader |
| } // namespace tint |