| // 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, SwitchBody_Case) { |
| auto p = parser("case 1 { a = 4; }"); |
| auto e = p->switch_body(); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::CaseStatement>()); |
| EXPECT_FALSE(e->IsDefault()); |
| auto* stmt = e->As<ast::CaseStatement>(); |
| ASSERT_EQ(stmt->selectors.size(), 1u); |
| EXPECT_EQ(stmt->selectors[0]->value, 1); |
| EXPECT_EQ(stmt->selectors[0]->suffix, ast::IntLiteralExpression::Suffix::kNone); |
| ASSERT_EQ(e->body->statements.size(), 1u); |
| EXPECT_TRUE(e->body->statements[0]->Is<ast::AssignmentStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_WithColon) { |
| auto p = parser("case 1: { a = 4; }"); |
| auto e = p->switch_body(); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::CaseStatement>()); |
| EXPECT_FALSE(e->IsDefault()); |
| auto* stmt = e->As<ast::CaseStatement>(); |
| ASSERT_EQ(stmt->selectors.size(), 1u); |
| EXPECT_EQ(stmt->selectors[0]->value, 1); |
| EXPECT_EQ(stmt->selectors[0]->suffix, ast::IntLiteralExpression::Suffix::kNone); |
| ASSERT_EQ(e->body->statements.size(), 1u); |
| EXPECT_TRUE(e->body->statements[0]->Is<ast::AssignmentStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_TrailingComma) { |
| auto p = parser("case 1, 2, { }"); |
| auto e = p->switch_body(); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::CaseStatement>()); |
| EXPECT_FALSE(e->IsDefault()); |
| auto* stmt = e->As<ast::CaseStatement>(); |
| ASSERT_EQ(stmt->selectors.size(), 2u); |
| EXPECT_EQ(stmt->selectors[0]->value, 1); |
| EXPECT_EQ(stmt->selectors[0]->suffix, ast::IntLiteralExpression::Suffix::kNone); |
| EXPECT_EQ(stmt->selectors[1]->value, 2); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_TrailingComma_WithColon) { |
| auto p = parser("case 1, 2,: { }"); |
| auto e = p->switch_body(); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::CaseStatement>()); |
| EXPECT_FALSE(e->IsDefault()); |
| auto* stmt = e->As<ast::CaseStatement>(); |
| ASSERT_EQ(stmt->selectors.size(), 2u); |
| EXPECT_EQ(stmt->selectors[0]->value, 1); |
| EXPECT_EQ(stmt->selectors[0]->suffix, ast::IntLiteralExpression::Suffix::kNone); |
| EXPECT_EQ(stmt->selectors[1]->value, 2); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_InvalidConstLiteral) { |
| auto p = parser("case a == 4: { a = 4; }"); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:6: unable to parse case selectors"); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_InvalidSelector_bool) { |
| auto p = parser("case true: { a = 4; }"); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:6: invalid case selector must be an integer value"); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_MissingConstLiteral) { |
| auto p = parser("case: { a = 4; }"); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:5: unable to parse case selectors"); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_MissingBracketLeft) { |
| auto p = parser("case 1 a = 4; }"); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:8: expected '{' for case statement"); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_MissingBracketLeft_WithColon) { |
| auto p = parser("case 1: a = 4; }"); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:9: expected '{' for case statement"); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_MissingBracketRight) { |
| auto p = parser("case 1: { a = 4; "); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:18: expected '}' for case statement"); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_InvalidCaseBody) { |
| auto p = parser("case 1: { fn main() {} }"); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:11: expected '}' for case statement"); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_MultipleSelectors) { |
| auto p = parser("case 1, 2 { }"); |
| auto e = p->switch_body(); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::CaseStatement>()); |
| EXPECT_FALSE(e->IsDefault()); |
| ASSERT_EQ(e->body->statements.size(), 0u); |
| ASSERT_EQ(e->selectors.size(), 2u); |
| ASSERT_EQ(e->selectors[0]->value, 1); |
| EXPECT_EQ(e->selectors[0]->suffix, ast::IntLiteralExpression::Suffix::kNone); |
| ASSERT_EQ(e->selectors[1]->value, 2); |
| EXPECT_EQ(e->selectors[1]->suffix, ast::IntLiteralExpression::Suffix::kNone); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_MultipleSelectors_WithColon) { |
| auto p = parser("case 1, 2: { }"); |
| auto e = p->switch_body(); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::CaseStatement>()); |
| EXPECT_FALSE(e->IsDefault()); |
| ASSERT_EQ(e->body->statements.size(), 0u); |
| ASSERT_EQ(e->selectors.size(), 2u); |
| ASSERT_EQ(e->selectors[0]->value, 1); |
| EXPECT_EQ(e->selectors[0]->suffix, ast::IntLiteralExpression::Suffix::kNone); |
| ASSERT_EQ(e->selectors[1]->value, 2); |
| EXPECT_EQ(e->selectors[1]->suffix, ast::IntLiteralExpression::Suffix::kNone); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_MultipleSelectorsMissingComma) { |
| auto p = parser("case 1 2: { }"); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:8: expected '{' for case statement"); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Case_MultipleSelectorsStartsWithComma) { |
| auto p = parser("case , 1, 2: { }"); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:6: unable to parse case selectors"); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Default) { |
| auto p = parser("default { a = 4; }"); |
| auto e = p->switch_body(); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::CaseStatement>()); |
| EXPECT_TRUE(e->IsDefault()); |
| ASSERT_EQ(e->body->statements.size(), 1u); |
| EXPECT_TRUE(e->body->statements[0]->Is<ast::AssignmentStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Default_WithColon) { |
| auto p = parser("default: { a = 4; }"); |
| auto e = p->switch_body(); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_TRUE(e->Is<ast::CaseStatement>()); |
| EXPECT_TRUE(e->IsDefault()); |
| ASSERT_EQ(e->body->statements.size(), 1u); |
| EXPECT_TRUE(e->body->statements[0]->Is<ast::AssignmentStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Default_MissingBracketLeft) { |
| auto p = parser("default a = 4; }"); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:9: expected '{' for case statement"); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Default_MissingBracketLeft_WithColon) { |
| auto p = parser("default: a = 4; }"); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:10: expected '{' for case statement"); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Default_MissingBracketRight) { |
| auto p = parser("default: { a = 4; "); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:19: expected '}' for case statement"); |
| } |
| |
| TEST_F(ParserImplTest, SwitchBody_Default_InvalidCaseBody) { |
| auto p = parser("default: { fn main() {} }"); |
| auto e = p->switch_body(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:12: expected '}' for case statement"); |
| } |
| |
| } // namespace |
| } // namespace tint::reader::wgsl |