| // 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, LogicalAndExpression_Parses) { |
| auto p = parser("a && true"); |
| auto e = p->logical_and_expression(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| |
| EXPECT_EQ(e->source.range.begin.line, 1u); |
| EXPECT_EQ(e->source.range.begin.column, 3u); |
| EXPECT_EQ(e->source.range.end.line, 1u); |
| EXPECT_EQ(e->source.range.end.column, 5u); |
| |
| ASSERT_TRUE(e->Is<ast::BinaryExpression>()); |
| auto* rel = e->As<ast::BinaryExpression>(); |
| EXPECT_EQ(ast::BinaryOp::kLogicalAnd, rel->op); |
| |
| ASSERT_TRUE(rel->lhs->Is<ast::IdentifierExpression>()); |
| auto* ident = rel->lhs->As<ast::IdentifierExpression>(); |
| EXPECT_EQ(ident->symbol, p->builder().Symbols().Get("a")); |
| |
| ASSERT_TRUE(rel->rhs->Is<ast::BoolLiteralExpression>()); |
| ASSERT_TRUE(rel->rhs->As<ast::BoolLiteralExpression>()->value); |
| } |
| |
| TEST_F(ParserImplTest, LogicalAndExpression_InvalidLHS) { |
| auto p = parser("if (a) {} && true"); |
| auto e = p->logical_and_expression(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| EXPECT_EQ(e.value, nullptr); |
| } |
| |
| TEST_F(ParserImplTest, LogicalAndExpression_InvalidRHS) { |
| auto p = parser("true && if (a) {}"); |
| auto e = p->logical_and_expression(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:9: unable to parse right side of && expression"); |
| } |
| |
| TEST_F(ParserImplTest, LogicalAndExpression_NoOr_ReturnsLHS) { |
| auto p = parser("a true"); |
| auto e = p->logical_and_expression(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::IdentifierExpression>()); |
| } |
| |
| } // namespace |
| } // namespace tint::reader::wgsl |