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/****************************************************************************** |
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* Top contributors (to current version): |
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* Andrew Reynolds, Kshitij Bansal, Gereon Kremer |
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* |
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* This file is part of the cvc5 project. |
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* |
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* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
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* in the top-level source directory and their institutional affiliations. |
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* All rights reserved. See the file COPYING in the top-level source |
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* directory for licensing information. |
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* **************************************************************************** |
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* |
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* An additional layer between commands and invoking them. |
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*/ |
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#ifndef CVC5__MAIN__COMMAND_EXECUTOR_H |
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#define CVC5__MAIN__COMMAND_EXECUTOR_H |
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#include <iosfwd> |
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#include <string> |
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#include "api/cpp/cvc5.h" |
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#include "expr/symbol_manager.h" |
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#include "options/options.h" |
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namespace cvc5 { |
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class Command; |
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namespace smt { |
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class SmtEngine; |
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} |
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namespace main { |
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class CommandExecutor |
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{ |
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protected: |
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/** |
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* The solver object, which is allocated by this class and is used for |
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* executing most commands (e.g. check-sat). |
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*/ |
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std::unique_ptr<api::Solver> d_solver; |
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/** |
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* The symbol manager, which is allocated by this class. This manages |
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* all things related to definitions of symbols and their impact on behaviors |
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* for commands (e.g. get-unsat-core, get-model, get-assignment), as well |
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* as tracking expression names. Note the symbol manager is independent from |
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* the parser, which uses this symbol manager given a text input. |
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* |
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* Certain commands (e.g. reset-assertions) have a specific impact on the |
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* symbol manager. |
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*/ |
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std::unique_ptr<SymbolManager> d_symman; |
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Options& d_options; |
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api::Result d_result; |
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public: |
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CommandExecutor(Options& options); |
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virtual ~CommandExecutor(); |
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/** |
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* Executes a command. Recursively handles if cmd is a command |
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* sequence. Eventually uses doCommandSingleton (which can be |
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* overridden by a derived class). |
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*/ |
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bool doCommand(cvc5::Command* cmd); |
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bool doCommand(std::unique_ptr<cvc5::Command>& cmd) |
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{ |
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return doCommand(cmd.get()); |
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} |
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/** Get a pointer to the solver object owned by this CommandExecutor. */ |
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api::Solver* getSolver() { return d_solver.get(); } |
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/** Get a pointer to the symbol manager owned by this CommandExecutor */ |
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SymbolManager* getSymbolManager() { return d_symman.get(); } |
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api::Result getResult() const { return d_result; } |
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void reset(); |
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SmtEngine* getSmtEngine() const { return d_solver->getSmtEngine(); } |
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/** |
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* Prints statistics to an output stream. |
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* Checks whether statistics should be printed according to the options. |
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* Thus, this method can always be called without checking the options. |
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*/ |
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virtual void printStatistics(std::ostream& out) const; |
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/** |
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* Safely prints statistics to a file descriptor. |
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* This method is safe to be used within a signal handler. |
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* Checks whether statistics should be printed according to the options. |
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* Thus, this method can always be called without checking the options. |
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*/ |
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void printStatisticsSafe(int fd) const; |
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void flushOutputStreams(); |
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protected: |
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/** Executes treating cmd as a singleton */ |
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virtual bool doCommandSingleton(cvc5::Command* cmd); |
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private: |
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CommandExecutor(); |
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}; /* class CommandExecutor */ |
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bool solverInvoke(api::Solver* solver, |
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SymbolManager* sm, |
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Command* cmd, |
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std::ostream* out); |
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} // namespace main |
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} // namespace cvc5 |
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#endif /* CVC5__MAIN__COMMAND_EXECUTOR_H */ |