1 /** 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef ES2PANDA_IR_EXPRESSION_LITERAL_NULL_LITERAL_H 17 #define ES2PANDA_IR_EXPRESSION_LITERAL_NULL_LITERAL_H 18 19 #include <ir/expressions/literal.h> 20 21 namespace panda::es2panda::compiler { 22 class PandaGen; 23 } // namespace panda::es2panda::compiler 24 25 namespace panda::es2panda::checker { 26 class Checker; 27 class Type; 28 } // namespace panda::es2panda::checker 29 30 namespace panda::es2panda::ir { 31 32 class NullLiteral : public Literal { 33 public: NullLiteral()34 explicit NullLiteral() : Literal(AstNodeType::NULL_LITERAL) {} 35 Tag()36 LiteralTag Tag() const override 37 { 38 return LiteralTag::NULL_VALUE; 39 } 40 41 void Iterate(const NodeTraverser &cb) const override; 42 void Dump(ir::AstDumper *dumper) const override; 43 void Compile(compiler::PandaGen *pg) const override; 44 checker::Type *Check(checker::Checker *checker) const override; 45 void UpdateSelf([[maybe_unused]] const NodeUpdater &cb, [[maybe_unused]] binder::Binder *binder) override; 46 }; 47 48 } // namespace panda::es2panda::ir 49 50 #endif 51