/* This file is part of solidity. solidity is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. solidity is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with solidity. If not, see . */ #include #include #include #include using namespace std; using namespace dev; using namespace yul; void VarDeclInitializer::operator()(Block& _block) { ASTModifier::operator()(_block); using OptionalStatements = std::optional>; GenericVisitor visitor{ VisitorFallback{}, [](VariableDeclaration& _varDecl) -> OptionalStatements { if (_varDecl.value) return {}; Literal zero{{}, LiteralKind::Number, YulString{"0"}, {}}; if (_varDecl.variables.size() == 1) { _varDecl.value = make_unique(std::move(zero)); return {}; } else { OptionalStatements ret{vector{}}; langutil::SourceLocation loc{std::move(_varDecl.location)}; for (auto& var: _varDecl.variables) ret->emplace_back(VariableDeclaration{loc, {std::move(var)}, make_unique(zero)}); return ret; } } }; iterateReplacing(_block.statements, [&](auto&& _statement) { return std::visit(visitor, _statement); }); }