| // 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/lang/wgsl/reader/parser/helper_test.h" |
| |
| namespace tint::wgsl::reader { |
| namespace { |
| |
| TEST_F(WGSLParserTest, AssignmentStmt_Parses_ToVariable) { |
| auto p = parser("a = 123"); |
| auto e = p->variable_updating_statement(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| |
| auto* a = e->As<ast::AssignmentStatement>(); |
| ASSERT_NE(a, nullptr); |
| ASSERT_NE(a->lhs, nullptr); |
| ASSERT_NE(a->rhs, nullptr); |
| |
| EXPECT_EQ(a->source.range.begin.line, 1u); |
| EXPECT_EQ(a->source.range.begin.column, 3u); |
| EXPECT_EQ(a->source.range.end.line, 1u); |
| EXPECT_EQ(a->source.range.end.column, 4u); |
| |
| ASSERT_TRUE(a->lhs->Is<ast::IdentifierExpression>()); |
| auto* ident_expr = a->lhs->As<ast::IdentifierExpression>(); |
| EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Get("a")); |
| |
| ASSERT_TRUE(a->rhs->Is<ast::IntLiteralExpression>()); |
| EXPECT_EQ(a->rhs->As<ast::IntLiteralExpression>()->value, 123); |
| EXPECT_EQ(a->rhs->As<ast::IntLiteralExpression>()->suffix, |
| ast::IntLiteralExpression::Suffix::kNone); |
| } |
| |
| TEST_F(WGSLParserTest, AssignmentStmt_Parses_ToMember) { |
| auto p = parser("a.b.c[2].d = 123"); |
| auto e = p->variable_updating_statement(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| |
| auto* a = e->As<ast::AssignmentStatement>(); |
| ASSERT_NE(a, nullptr); |
| ASSERT_NE(a->lhs, nullptr); |
| ASSERT_NE(a->rhs, nullptr); |
| |
| EXPECT_EQ(a->source.range.begin.line, 1u); |
| EXPECT_EQ(a->source.range.begin.column, 12u); |
| EXPECT_EQ(a->source.range.end.line, 1u); |
| EXPECT_EQ(a->source.range.end.column, 13u); |
| |
| ASSERT_TRUE(a->rhs->Is<ast::IntLiteralExpression>()); |
| EXPECT_EQ(a->rhs->As<ast::IntLiteralExpression>()->value, 123); |
| EXPECT_EQ(a->rhs->As<ast::IntLiteralExpression>()->suffix, |
| ast::IntLiteralExpression::Suffix::kNone); |
| |
| ASSERT_TRUE(a->lhs->Is<ast::MemberAccessorExpression>()); |
| auto* mem = a->lhs->As<ast::MemberAccessorExpression>(); |
| |
| EXPECT_EQ(mem->member->symbol, p->builder().Symbols().Get("d")); |
| |
| ASSERT_TRUE(mem->object->Is<ast::IndexAccessorExpression>()); |
| auto* idx = mem->object->As<ast::IndexAccessorExpression>(); |
| |
| ASSERT_NE(idx->index, nullptr); |
| ASSERT_TRUE(idx->index->Is<ast::IntLiteralExpression>()); |
| EXPECT_EQ(idx->index->As<ast::IntLiteralExpression>()->value, 2); |
| |
| ASSERT_TRUE(idx->object->Is<ast::MemberAccessorExpression>()); |
| mem = idx->object->As<ast::MemberAccessorExpression>(); |
| EXPECT_EQ(mem->member->symbol, p->builder().Symbols().Get("c")); |
| |
| ASSERT_TRUE(mem->object->Is<ast::MemberAccessorExpression>()); |
| |
| mem = mem->object->As<ast::MemberAccessorExpression>(); |
| ASSERT_TRUE(mem->object->Is<ast::IdentifierExpression>()); |
| auto* ident_expr = mem->object->As<ast::IdentifierExpression>(); |
| EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Get("a")); |
| EXPECT_EQ(mem->member->symbol, p->builder().Symbols().Get("b")); |
| } |
| |
| TEST_F(WGSLParserTest, AssignmentStmt_Parses_ToPhony) { |
| auto p = parser("_ = 123i"); |
| auto e = p->variable_updating_statement(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| |
| auto* a = e->As<ast::AssignmentStatement>(); |
| ASSERT_NE(a, nullptr); |
| ASSERT_NE(a->lhs, nullptr); |
| ASSERT_NE(a->rhs, nullptr); |
| |
| EXPECT_EQ(a->source.range.begin.line, 1u); |
| EXPECT_EQ(a->source.range.begin.column, 3u); |
| EXPECT_EQ(a->source.range.end.line, 1u); |
| EXPECT_EQ(a->source.range.end.column, 4u); |
| |
| ASSERT_TRUE(a->rhs->Is<ast::IntLiteralExpression>()); |
| EXPECT_EQ(a->rhs->As<ast::IntLiteralExpression>()->value, 123); |
| EXPECT_EQ(a->rhs->As<ast::IntLiteralExpression>()->suffix, |
| ast::IntLiteralExpression::Suffix::kI); |
| |
| ASSERT_TRUE(a->lhs->Is<ast::PhonyExpression>()); |
| } |
| |
| TEST_F(WGSLParserTest, AssignmentStmt_Phony_CompoundOpFails) { |
| auto p = parser("_ += 123i"); |
| auto e = p->variable_updating_statement(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:3: expected '=' for assignment"); |
| } |
| |
| TEST_F(WGSLParserTest, AssignmentStmt_Phony_IncrementFails) { |
| auto p = parser("_ ++"); |
| auto e = p->variable_updating_statement(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:3: expected '=' for assignment"); |
| } |
| |
| TEST_F(WGSLParserTest, AssignmentStmt_Phony_EqualIncrementFails) { |
| auto p = parser("_ = ++"); |
| auto e = p->variable_updating_statement(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ( |
| p->error(), |
| "1:5: prefix increment and decrement operators are reserved for a future WGSL version"); |
| } |
| |
| struct CompoundData { |
| std::string str; |
| core::BinaryOp op; |
| }; |
| using CompoundOpTest = WGSLParserTestWithParam<CompoundData>; |
| TEST_P(CompoundOpTest, CompoundOp) { |
| auto params = GetParam(); |
| auto p = parser("a " + params.str + " 123u"); |
| auto e = p->variable_updating_statement(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| |
| auto* a = e->As<ast::CompoundAssignmentStatement>(); |
| ASSERT_NE(a, nullptr); |
| ASSERT_NE(a->lhs, nullptr); |
| ASSERT_NE(a->rhs, nullptr); |
| EXPECT_EQ(a->op, params.op); |
| |
| EXPECT_EQ(a->source.range.begin.line, 1u); |
| EXPECT_EQ(a->source.range.begin.column, 3u); |
| EXPECT_EQ(a->source.range.end.line, 1u); |
| EXPECT_EQ(a->source.range.end.column, 3u + params.str.length()); |
| |
| ASSERT_TRUE(a->lhs->Is<ast::IdentifierExpression>()); |
| auto* ident_expr = a->lhs->As<ast::IdentifierExpression>(); |
| EXPECT_EQ(ident_expr->identifier->symbol, p->builder().Symbols().Get("a")); |
| |
| ASSERT_TRUE(a->rhs->Is<ast::IntLiteralExpression>()); |
| EXPECT_EQ(a->rhs->As<ast::IntLiteralExpression>()->value, 123); |
| EXPECT_EQ(a->rhs->As<ast::IntLiteralExpression>()->suffix, |
| ast::IntLiteralExpression::Suffix::kU); |
| } |
| INSTANTIATE_TEST_SUITE_P(WGSLParserTest, |
| CompoundOpTest, |
| testing::Values(CompoundData{"+=", core::BinaryOp::kAdd}, |
| CompoundData{"-=", core::BinaryOp::kSubtract}, |
| CompoundData{"*=", core::BinaryOp::kMultiply}, |
| CompoundData{"/=", core::BinaryOp::kDivide}, |
| CompoundData{"%=", core::BinaryOp::kModulo}, |
| CompoundData{"&=", core::BinaryOp::kAnd}, |
| CompoundData{"|=", core::BinaryOp::kOr}, |
| CompoundData{"^=", core::BinaryOp::kXor}, |
| CompoundData{">>=", core::BinaryOp::kShiftRight}, |
| CompoundData{"<<=", core::BinaryOp::kShiftLeft})); |
| |
| TEST_F(WGSLParserTest, AssignmentStmt_MissingEqual) { |
| auto p = parser("a.b.c[2].d 123"); |
| auto e = p->variable_updating_statement(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:12: expected '=' for assignment"); |
| } |
| |
| TEST_F(WGSLParserTest, AssignmentStmt_Compound_MissingEqual) { |
| auto p = parser("a + 123"); |
| auto e = p->variable_updating_statement(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:3: expected '=' for assignment"); |
| } |
| |
| TEST_F(WGSLParserTest, AssignmentStmt_InvalidLHS) { |
| auto p = parser("if (true) {} = 123"); |
| auto e = p->variable_updating_statement(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| EXPECT_EQ(e.value, nullptr); |
| } |
| |
| TEST_F(WGSLParserTest, AssignmentStmt_InvalidRHS) { |
| auto p = parser("a.b.c[2].d = if (true) {}"); |
| auto e = p->variable_updating_statement(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:14: unable to parse right side of assignment"); |
| } |
| |
| TEST_F(WGSLParserTest, AssignmentStmt_InvalidCompoundOp) { |
| auto p = parser("a &&= true"); |
| auto e = p->variable_updating_statement(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:3: expected '=' for assignment"); |
| } |
| |
| } // namespace |
| } // namespace tint::wgsl::reader |