| // 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/invariant_attribute.h" |
| #include "src/tint/reader/wgsl/parser_impl_test_helper.h" |
| |
| namespace tint::reader::wgsl { |
| namespace { |
| |
| TEST_F(ParserImplTest, AttributeDecl_Parses) { |
| auto p = parser("@invariant"); |
| auto attrs = p->attribute_list(); |
| EXPECT_FALSE(p->has_error()); |
| EXPECT_FALSE(attrs.errored); |
| EXPECT_TRUE(attrs.matched); |
| ASSERT_EQ(attrs.value.size(), 1u); |
| auto* invariant = attrs.value[0]->As<ast::Attribute>(); |
| EXPECT_TRUE(invariant->Is<ast::InvariantAttribute>()); |
| } |
| |
| TEST_F(ParserImplTest, AttributeDecl_MissingParenLeft) { |
| auto p = parser("@location 1)"); |
| auto attrs = p->attribute_list(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(attrs.errored); |
| EXPECT_FALSE(attrs.matched); |
| EXPECT_TRUE(attrs.value.empty()); |
| EXPECT_EQ(p->error(), "1:11: expected '(' for location attribute"); |
| } |
| |
| TEST_F(ParserImplTest, AttributeDecl_MissingValue) { |
| auto p = parser("@location()"); |
| auto attrs = p->attribute_list(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(attrs.errored); |
| EXPECT_FALSE(attrs.matched); |
| EXPECT_TRUE(attrs.value.empty()); |
| EXPECT_EQ(p->error(), "1:11: expected signed integer literal for location attribute"); |
| } |
| |
| TEST_F(ParserImplTest, AttributeDecl_MissingParenRight) { |
| auto p = parser("@location(1"); |
| auto attrs = p->attribute_list(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(attrs.errored); |
| EXPECT_FALSE(attrs.matched); |
| EXPECT_TRUE(attrs.value.empty()); |
| EXPECT_EQ(p->error(), "1:12: expected ')' for location attribute"); |
| } |
| |
| TEST_F(ParserImplTest, AttributeDecl_Invalidattribute) { |
| auto p = parser("@invalid"); |
| auto attrs = p->attribute_list(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(attrs.errored); |
| EXPECT_FALSE(attrs.matched); |
| EXPECT_TRUE(attrs.value.empty()); |
| } |
| |
| } // namespace |
| } // namespace tint::reader::wgsl |