mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/*
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This file is part of cpp-ethereum.
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cpp-ethereum 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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cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @author Christian <c@ethdev.com>
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* @date 2014
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* Component that resolves type names to types and annotates the AST accordingly.
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*/
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#pragma once
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#include <map>
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#include <list>
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#include <boost/noncopyable.hpp>
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#include <libsolidity/ast/ASTVisitor.h>
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#include <libsolidity/ast/ASTAnnotations.h>
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namespace dev
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{
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namespace solidity
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{
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class NameAndTypeResolver;
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/**
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* Resolves references to declarations (of variables and types) and also establishes the link
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* between a return statement and the return parameter list.
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*/
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class ReferencesResolver: private ASTConstVisitor
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{
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public:
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ReferencesResolver(
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ErrorList& _errors,
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NameAndTypeResolver& _resolver,
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ContractDefinition const* _currentContract,
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ParameterList const* _returnParameters,
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bool _resolveInsideCode = false
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):
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m_errors(_errors),
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m_resolver(_resolver),
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m_currentContract(_currentContract),
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m_returnParameters(_returnParameters),
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m_resolveInsideCode(_resolveInsideCode)
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{}
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/// @returns true if no errors during resolving
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bool resolve(ASTNode& _root)
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{
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_root.accept(*this);
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return true;//m_errors.empty();
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}
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private:
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virtual bool visit(Block const&) override { return m_resolveInsideCode; }
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virtual bool visit(Identifier const& _identifier) override;
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virtual bool visit(UserDefinedTypeName const& _typeName) override;
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virtual bool visit(Return const& _return) override;
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virtual void endVisit(VariableDeclaration const& _variable) override;
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TypePointer typeFor(TypeName const& _typeName);
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/// Adds a new error to the list of errors.
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void typeError(SourceLocation const& _location, std::string const& _description);
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/// Adds a new error to the list of errors and throws to abort type checking.
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void fatalTypeError(SourceLocation const& _location, std::string const& _description);
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ErrorList& m_errors;
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NameAndTypeResolver& m_resolver;
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ContractDefinition const* m_currentContract;
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ParameterList const* m_returnParameters;
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bool m_resolveInsideCode;
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};
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}
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}
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