| // 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/ast/break_statement.h" |
| #include "src/tint/ast/continue_statement.h" |
| #include "src/tint/ast/discard_statement.h" |
| #include "src/tint/reader/wgsl/parser_impl_test_helper.h" |
| |
| namespace tint::reader::wgsl { |
| namespace { |
| |
| TEST_F(ParserImplTest, Statement) { |
| auto p = parser("return;"); |
| auto e = p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::ReturnStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Semicolon) { |
| auto p = parser(";"); |
| p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Return_NoValue) { |
| auto p = parser("return;"); |
| auto e = p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::ReturnStatement>()); |
| auto* ret = e->As<ast::ReturnStatement>(); |
| ASSERT_EQ(ret->value, nullptr); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Return_Value) { |
| auto p = parser("return a + b * (.1 - .2);"); |
| auto e = p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::ReturnStatement>()); |
| auto* ret = e->As<ast::ReturnStatement>(); |
| ASSERT_NE(ret->value, nullptr); |
| EXPECT_TRUE(ret->value->Is<ast::BinaryExpression>()); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Return_MissingSemi) { |
| auto p = parser("return"); |
| auto e = p->statement(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:7: expected ';' for return statement"); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Return_Invalid) { |
| auto p = parser("return if(a) {};"); |
| auto e = p->statement(); |
| 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 return statement"); |
| } |
| |
| TEST_F(ParserImplTest, Statement_If) { |
| auto p = parser("if (a) {}"); |
| auto e = p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::IfStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, Statement_If_Invalid) { |
| auto p = parser("if (a) { fn main() -> {}}"); |
| auto e = p->statement(); |
| 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 '}'"); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Variable) { |
| auto p = parser("var a : i32 = 1;"); |
| auto e = p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::VariableDeclStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Variable_Invalid) { |
| auto p = parser("var a : i32 =;"); |
| auto e = p->statement(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:14: missing constructor for variable declaration"); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Variable_MissingSemicolon) { |
| auto p = parser("var a : i32"); |
| auto e = p->statement(); |
| 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 variable declaration"); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Switch) { |
| auto p = parser("switch (a) {}"); |
| auto e = p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::SwitchStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Switch_Invalid) { |
| auto p = parser("switch (a) { case: {}}"); |
| auto e = p->statement(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:18: unable to parse case selectors"); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Loop) { |
| auto p = parser("loop {}"); |
| auto e = p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::LoopStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Loop_Invalid) { |
| auto p = parser("loop discard; }"); |
| auto e = p->statement(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:6: expected '{' for loop"); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Assignment) { |
| auto p = parser("a = b;"); |
| auto e = p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::AssignmentStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Assignment_Invalid) { |
| auto p = parser("a = if(b) {};"); |
| auto e = p->statement(); |
| 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 right side of assignment"); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Assignment_MissingSemicolon) { |
| auto p = parser("a = b"); |
| auto e = p->statement(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:6: expected ';' for assignment statement"); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Break) { |
| auto p = parser("break;"); |
| auto e = p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::BreakStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Break_MissingSemicolon) { |
| auto p = parser("break"); |
| auto e = p->statement(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:6: expected ';' for break statement"); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Continue) { |
| auto p = parser("continue;"); |
| auto e = p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::ContinueStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Continue_MissingSemicolon) { |
| auto p = parser("continue"); |
| auto e = p->statement(); |
| 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 continue statement"); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Discard) { |
| auto p = parser("discard;"); |
| auto e = p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::DiscardStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Discard_MissingSemicolon) { |
| auto p = parser("discard"); |
| auto e = p->statement(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(p->error(), "1:8: expected ';' for discard statement"); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Body) { |
| auto p = parser("{ var i: i32; }"); |
| auto e = p->statement(); |
| ASSERT_FALSE(p->has_error()) << p->error(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| ASSERT_TRUE(e->Is<ast::BlockStatement>()); |
| EXPECT_TRUE(e->As<ast::BlockStatement>()->statements[0]->Is<ast::VariableDeclStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, Statement_Body_Invalid) { |
| auto p = parser("{ fn main() -> {}}"); |
| auto e = p->statement(); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_TRUE(e.errored); |
| EXPECT_FALSE(e.matched); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_EQ(p->error(), "1:3: expected '}'"); |
| } |
| |
| } // namespace |
| } // namespace tint::reader::wgsl |