| // 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, VariableDecl_Parses) { |
| auto p = parser("var my_var : f32"); |
| auto v = p->variable_decl(); |
| EXPECT_FALSE(p->has_error()); |
| EXPECT_TRUE(v.matched); |
| EXPECT_FALSE(v.errored); |
| EXPECT_EQ(v->name, "my_var"); |
| EXPECT_NE(v->type, nullptr); |
| EXPECT_TRUE(v->type->Is<ast::F32>()); |
| |
| EXPECT_EQ(v->source.range, (Source::Range{{1u, 5u}, {1u, 11u}})); |
| EXPECT_EQ(v->type->source.range, (Source::Range{{1u, 14u}, {1u, 17u}})); |
| } |
| |
| TEST_F(ParserImplTest, VariableDecl_Unicode_Parses) { |
| const std::string ident = // "𝖎𝖉𝖊𝖓𝖙𝖎𝖋𝖎𝖊𝖗123" |
| "\xf0\x9d\x96\x8e\xf0\x9d\x96\x89\xf0\x9d\x96\x8a\xf0\x9d\x96\x93" |
| "\xf0\x9d\x96\x99\xf0\x9d\x96\x8e\xf0\x9d\x96\x8b\xf0\x9d\x96\x8e" |
| "\xf0\x9d\x96\x8a\xf0\x9d\x96\x97\x31\x32\x33"; |
| |
| auto p = parser("var " + ident + " : f32"); |
| auto v = p->variable_decl(); |
| EXPECT_FALSE(p->has_error()); |
| EXPECT_TRUE(v.matched); |
| EXPECT_FALSE(v.errored); |
| EXPECT_EQ(v->name, ident); |
| EXPECT_NE(v->type, nullptr); |
| EXPECT_TRUE(v->type->Is<ast::F32>()); |
| |
| EXPECT_EQ(v->source.range, (Source::Range{{1u, 5u}, {1u, 48u}})); |
| EXPECT_EQ(v->type->source.range, (Source::Range{{1u, 51u}, {1u, 54u}})); |
| } |
| |
| TEST_F(ParserImplTest, VariableDecl_Inferred_Parses) { |
| auto p = parser("var my_var = 1.0"); |
| auto v = p->variable_decl(/*allow_inferred = */ true); |
| EXPECT_FALSE(p->has_error()); |
| EXPECT_TRUE(v.matched); |
| EXPECT_FALSE(v.errored); |
| EXPECT_EQ(v->name, "my_var"); |
| EXPECT_EQ(v->type, nullptr); |
| |
| EXPECT_EQ(v->source.range, (Source::Range{{1u, 5u}, {1u, 11u}})); |
| } |
| |
| TEST_F(ParserImplTest, VariableDecl_MissingVar) { |
| auto p = parser("my_var : f32"); |
| auto v = p->variable_decl(); |
| EXPECT_FALSE(v.matched); |
| EXPECT_FALSE(v.errored); |
| EXPECT_FALSE(p->has_error()); |
| |
| auto t = p->next(); |
| ASSERT_TRUE(t.IsIdentifier()); |
| } |
| |
| TEST_F(ParserImplTest, VariableDecl_InvalidIdentDecl) { |
| auto p = parser("var my_var f32"); |
| auto v = p->variable_decl(); |
| EXPECT_FALSE(v.matched); |
| EXPECT_TRUE(v.errored); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:12: expected ':' for variable declaration"); |
| } |
| |
| TEST_F(ParserImplTest, VariableDecl_WithStorageClass) { |
| auto p = parser("var<private> my_var : f32"); |
| auto v = p->variable_decl(); |
| EXPECT_TRUE(v.matched); |
| EXPECT_FALSE(v.errored); |
| EXPECT_FALSE(p->has_error()); |
| EXPECT_EQ(v->name, "my_var"); |
| EXPECT_TRUE(v->type->Is<ast::F32>()); |
| EXPECT_EQ(v->storage_class, ast::StorageClass::kPrivate); |
| |
| EXPECT_EQ(v->source.range.begin.line, 1u); |
| EXPECT_EQ(v->source.range.begin.column, 14u); |
| EXPECT_EQ(v->source.range.end.line, 1u); |
| EXPECT_EQ(v->source.range.end.column, 20u); |
| } |
| |
| TEST_F(ParserImplTest, VariableDecl_InvalidStorageClass) { |
| auto p = parser("var<unknown> my_var : f32"); |
| auto v = p->variable_decl(); |
| EXPECT_FALSE(v.matched); |
| EXPECT_TRUE(v.errored); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:5: invalid storage class for variable declaration"); |
| } |
| |
| } // namespace |
| } // namespace tint::reader::wgsl |