| // 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/discard_statement.h" |
| #include "src/tint/reader/wgsl/parser_impl_test_helper.h" |
| |
| namespace tint::reader::wgsl { |
| namespace { |
| |
| TEST_F(ParserImplTest, LoopStmt_BodyNoContinuing) { |
| auto p = parser("loop { discard; }"); |
| auto e = p->loop_stmt(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| |
| ASSERT_EQ(e->body->statements.size(), 1u); |
| EXPECT_TRUE(e->body->statements[0]->Is<ast::DiscardStatement>()); |
| |
| EXPECT_EQ(e->continuing->statements.size(), 0u); |
| } |
| |
| TEST_F(ParserImplTest, LoopStmt_BodyWithContinuing) { |
| auto p = parser("loop { discard; continuing { discard; }}"); |
| auto e = p->loop_stmt(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| |
| ASSERT_EQ(e->body->statements.size(), 1u); |
| EXPECT_TRUE(e->body->statements[0]->Is<ast::DiscardStatement>()); |
| |
| EXPECT_EQ(e->continuing->statements.size(), 1u); |
| EXPECT_TRUE(e->continuing->statements[0]->Is<ast::DiscardStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, LoopStmt_NoBodyNoContinuing) { |
| auto p = parser("loop { }"); |
| auto e = p->loop_stmt(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_EQ(e->body->statements.size(), 0u); |
| ASSERT_EQ(e->continuing->statements.size(), 0u); |
| } |
| |
| TEST_F(ParserImplTest, LoopStmt_NoBodyWithContinuing) { |
| auto p = parser("loop { continuing { discard; }}"); |
| auto e = p->loop_stmt(); |
| EXPECT_TRUE(e.matched); |
| EXPECT_FALSE(e.errored); |
| EXPECT_FALSE(p->has_error()) << p->error(); |
| ASSERT_NE(e.value, nullptr); |
| ASSERT_EQ(e->body->statements.size(), 0u); |
| ASSERT_EQ(e->continuing->statements.size(), 1u); |
| EXPECT_TRUE(e->continuing->statements[0]->Is<ast::DiscardStatement>()); |
| } |
| |
| TEST_F(ParserImplTest, LoopStmt_MissingBracketLeft) { |
| auto p = parser("loop discard; }"); |
| auto e = p->loop_stmt(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:6: expected '{' for loop"); |
| } |
| |
| TEST_F(ParserImplTest, LoopStmt_MissingBracketRight) { |
| auto p = parser("loop { discard; "); |
| auto e = p->loop_stmt(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:17: expected '}' for loop"); |
| } |
| |
| TEST_F(ParserImplTest, LoopStmt_InvalidStatements) { |
| auto p = parser("loop { discard }"); |
| auto e = p->loop_stmt(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:16: expected ';' for discard statement"); |
| } |
| |
| TEST_F(ParserImplTest, LoopStmt_InvalidContinuing) { |
| auto p = parser("loop { continuing { discard }}"); |
| auto e = p->loop_stmt(); |
| EXPECT_FALSE(e.matched); |
| EXPECT_TRUE(e.errored); |
| EXPECT_EQ(e.value, nullptr); |
| EXPECT_TRUE(p->has_error()); |
| EXPECT_EQ(p->error(), "1:29: expected ';' for discard statement"); |
| } |
| |
| } // namespace |
| } // namespace tint::reader::wgsl |