text: /*
      This file is part of cpp-ethereum.
  
      cpp-ethereum 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.
  
      cpp-ethereum 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 cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
  */
  /**
   * @author Christian <c@ethdev.com>
   * @date 2014
   * Scope - object that holds declaration of names.
   */
  
  #pragma once
  
  #include <map>
  #include <set>
  #include <boost/noncopyable.hpp>
  
  #include <libsolidity/ASTForward.h>
  
  namespace dev
  {
  namespace solidity
  {
  
  /**
   * Container that stores mappings between names and declarations. It also contains a link to the
   * enclosing scope.
   */
  class DeclarationContainer
  {
  public:
  	explicit DeclarationContainer(Declaration const* _enclosingDeclaration = nullptr,
  								  DeclarationContainer const* _enclosingContainer = nullptr):
  		m_enclosingDeclaration(_enclosingDeclaration), m_enclosingContainer(_enclosingContainer) {}
  	/// Registers the declaration in the scope unless its name is already declared or the name is empty.
  	/// @param _invisible if true, registers the declaration, reports name clashes but does not return it in @a resolveName
  	/// @param _update if true, replaces a potential declaration that is already present
  	/// @returns false if the name was already declared.
  	bool registerDeclaration(Declaration const& _declaration, bool _invisible = false, bool _update = false);
  	std::vector<Declaration const*> resolveName(ASTString const& _name, bool _recursive = false) const;
  	Declaration const* getEnclosingDeclaration() const { return m_enclosingDeclaration; }
  	std::map<ASTString, std::vector<Declaration const*>> const& getDeclarations() const { return m_declarations; }
  	/// @returns whether declaration is valid, and if not also returns previous declaration.
  	Declaration const* conflictingDeclaration(Declaration const& _declaration) const;
  
  private:
  	Declaration const* m_enclosingDeclaration;
  	DeclarationContainer const* m_enclosingContainer;
  	std::map<ASTString, std::vector<Declaration const*>> m_declarations;
  	std::map<ASTString, std::vector<Declaration const*>> m_invisibleDeclarations;
  };
  
  }
  }
  