| // 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/reader/wgsl/parser_impl_test_helper.h" |
| |
| namespace tint::reader::wgsl { |
| namespace { |
| |
| TEST_F(ParserImplTest, TypeDecl_ParsesType) { |
| auto p = parser("type a = i32"); |
| |
| auto t = p->type_alias(); |
| EXPECT_FALSE(p->has_error()); |
| EXPECT_FALSE(t.errored); |
| EXPECT_TRUE(t.matched); |
| ASSERT_NE(t.value, nullptr); |
| ASSERT_TRUE(t->Is<ast::Alias>()); |
| auto* alias = t->As<ast::Alias>(); |
| ASSERT_TRUE(alias->type->Is<ast::I32>()); |
| |
| EXPECT_EQ(t.value->source.range, (Source::Range{{1u, 1u}, {1u, 13u}})); |
| } |
| |
| TEST_F(ParserImplTest, TypeDecl_Parses_Ident) { |
| auto p = parser("type a = B"); |
| |
| auto t = p->type_alias(); |
| EXPECT_FALSE(p->has_error()); |
| EXPECT_FALSE(t.errored); |
| EXPECT_TRUE(t.matched); |
| ASSERT_NE(t.value, nullptr); |
| ASSERT_TRUE(t.value->Is<ast::Alias>()); |
| auto* alias = t.value->As<ast::Alias>(); |
| EXPECT_EQ(p->builder().Symbols().NameFor(alias->name), "a"); |
| EXPECT_TRUE(alias->type->Is<ast::TypeName>()); |
| EXPECT_EQ(alias->source.range, (Source::Range{{1u, 1u}, {1u, 11u}})); |
| } |
| |
| TEST_F(ParserImplTest, TypeDecl_Unicode_Parses_Ident) { |
| const std::string ident = // "𝓶𝔂_𝓽𝔂𝓹𝓮" |
| "\xf0\x9d\x93\xb6\xf0\x9d\x94\x82\x5f\xf0\x9d\x93\xbd\xf0\x9d\x94\x82\xf0" |
| "\x9d\x93\xb9\xf0\x9d\x93\xae"; |
| |
| auto p = parser("type " + ident + " = i32"); |
| |
| auto t = p->type_alias(); |
| EXPECT_FALSE(p->has_error()); |
| EXPECT_FALSE(t.errored); |
| EXPECT_TRUE(t.matched); |
| ASSERT_NE(t.value, nullptr); |
| ASSERT_TRUE(t.value->Is<ast::Alias>()); |
| auto* alias = t.value->As<ast::Alias>(); |
| EXPECT_EQ(p->builder().Symbols().NameFor(alias->name), ident); |
| EXPECT_TRUE(alias->type->Is<ast::I32>()); |
| EXPECT_EQ(alias->source.range, (Source::Range{{1u, 1u}, {1u, 37u}})); |
| } |
| |
| TEST_F(ParserImplTest, TypeDecl_MissingIdent) { |
| auto p = parser("type = i32"); |
| auto t = p->type_alias(); |
| EXPECT_TRUE(t.errored); |
| EXPECT_FALSE(t.matched); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(t.value, nullptr); |
| EXPECT_EQ(p->error(), "1:6: expected identifier for type alias"); |
| } |
| |
| TEST_F(ParserImplTest, TypeDecl_InvalidIdent) { |
| auto p = parser("type 123 = i32"); |
| auto t = p->type_alias(); |
| EXPECT_TRUE(t.errored); |
| EXPECT_FALSE(t.matched); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(t.value, nullptr); |
| EXPECT_EQ(p->error(), "1:6: expected identifier for type alias"); |
| } |
| |
| TEST_F(ParserImplTest, TypeDecl_MissingEqual) { |
| auto p = parser("type a i32"); |
| auto t = p->type_alias(); |
| EXPECT_TRUE(t.errored); |
| EXPECT_FALSE(t.matched); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(t.value, nullptr); |
| EXPECT_EQ(p->error(), "1:8: expected '=' for type alias"); |
| } |
| |
| } // namespace |
| } // namespace tint::reader::wgsl |