mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* Analysis part of inline assembly.
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*/
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#pragma once
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#include <libsolidity/interface/Exceptions.h>
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#include <boost/variant.hpp>
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#include <functional>
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#include <memory>
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namespace dev
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{
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namespace solidity
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{
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namespace assembly
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{
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struct Literal;
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struct Block;
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struct Label;
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struct FunctionalInstruction;
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struct FunctionalAssignment;
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struct VariableDeclaration;
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struct Instruction;
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struct Identifier;
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struct Assignment;
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struct FunctionDefinition;
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struct FunctionCall;
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struct Scope;
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/**
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* Performs the full analysis stage, calls the ScopeFiller internally, then resolves
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* references and performs other checks.
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* @todo Does not yet check for stack height issues.
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*/
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class AsmAnalyzer: public boost::static_visitor<bool>
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{
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public:
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using Scopes = std::map<assembly::Block const*, std::shared_ptr<Scope>>;
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/// @param _allowFailedLookups if true, allow failed lookups for variables (they
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/// will be provided from the environment later on)
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AsmAnalyzer(Scopes& _scopes, ErrorList& _errors, bool _allowFailedLookups);
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bool analyze(assembly::Block const& _block);
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bool operator()(assembly::Instruction const&) { return true; }
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bool operator()(assembly::Literal const& _literal);
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bool operator()(assembly::Identifier const&);
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bool operator()(assembly::FunctionalInstruction const& _functionalInstruction);
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bool operator()(assembly::Label const&) { return true; }
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bool operator()(assembly::Assignment const&);
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bool operator()(assembly::FunctionalAssignment const& _functionalAssignment);
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bool operator()(assembly::VariableDeclaration const& _variableDeclaration);
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bool operator()(assembly::FunctionDefinition const& _functionDefinition);
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bool operator()(assembly::FunctionCall const& _functionCall);
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bool operator()(assembly::Block const& _block);
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private:
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bool checkAssignment(assembly::Identifier const& _assignment);
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Scope& scope(assembly::Block const* _block);
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bool m_allowFailedLookups = false;
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Scope* m_currentScope = nullptr;
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Scopes& m_scopes;
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ErrorList& m_errors;
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};
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}
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}
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}
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