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/********************* */
/*! \file options.h
** \verbatim
** Original author: Morgan Deters
** Major contributors: none
** Minor contributors (to current version): Kshitij Bansal
** This file is part of the CVC4 project.
** Copyright (c) 2009-2014 New York University and The University of Iowa
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief Global (command-line, set-option, ...) parameters for SMT.
**
** Global (command-line, set-option, ...) parameters for SMT.
**/
#include "cvc4_public.h"
#ifndef __CVC4__OPTIONS__OPTIONS_H
#define __CVC4__OPTIONS__OPTIONS_H
#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include "base/tls.h"
#include "options/option_exception.h"
namespace CVC4 {
namespace options {
struct OptionsHolder;
class OptionsHandler;
}/* CVC4::options namespace */
// Forward declaration for smt_options
class ExprStream;
class CVC4_PUBLIC Options {
/** The struct that holds all option values. */
options::OptionsHolder* d_holder;
/** The current Options in effect */
static CVC4_THREADLOCAL(Options*) s_current;
/** Low-level assignment function for options */
template <class T>
void assign(T, std::string option, std::string value, options::OptionsHandler* handler);
/** Low-level assignment function for bool-valued options */
template <class T>
void assignBool(T, std::string option, bool value, options::OptionsHandler* handler);
friend class options::OptionsHandler;
public:
class CVC4_PUBLIC OptionsScope {
private:
Options* d_oldOptions;
public:
OptionsScope(Options* newOptions) :
d_oldOptions(Options::s_current)
{
Options::s_current = newOptions;
}
~OptionsScope(){
Options::s_current = d_oldOptions;
}
};
/** Return true if current Options are null */
static inline bool isCurrentNull() {
return s_current == NULL;
}
/** Get the current Options in effect */
static inline Options* current() {
return s_current;
}
Options();
Options(const Options& options);
~Options();
Options& operator=(const Options& options);
/**
* Set the value of the given option. Use of this default
* implementation causes a compile-time error; write-able
* options specialize this template with a real implementation.
*/
template <class T>
void set(T, const typename T::type&) {
// Flag a compile-time error. Write-able options specialize
// this template to provide an implementation.
T::you_are_trying_to_assign_to_a_read_only_option;
}
/** Get the value of the given option. Const access only. */
template <class T>
const typename T::type& operator[](T) const;
/**
* Returns true iff the value of the given option was set
* by the user via a command-line option or SmtEngine::setOption().
* (Options::set() is low-level and doesn't count.) Returns false
* otherwise.
*/
template <class T>
bool wasSetByUser(T) const;
/**
* Get a description of the command-line flags accepted by
* parseOptions. The returned string will be escaped so that it is
* suitable as an argument to printf. */
std::string getDescription() const;
/**
* Print overall command-line option usage message, prefixed by
* "msg"---which could be an error message causing the usage
* output in the first place, e.g. "no such option --foo"
*/
static void printUsage(const std::string msg, std::ostream& out);
/**
* Print command-line option usage message for only the most-commonly
* used options. The message is prefixed by "msg"---which could be
* an error message causing the usage output in the first place, e.g.
* "no such option --foo"
*/
static void printShortUsage(const std::string msg, std::ostream& out);
/** Print help for the --lang command line option */
static void printLanguageHelp(std::ostream& out);
/**
* Look up long command-line option names that bear some similarity
* to the given name. Returns an empty string if there are no
* suggestions.
*/
static std::string suggestCommandLineOptions(const std::string& optionName) throw();
/**
* Look up SMT option names that bear some similarity to
* the given name. Don't include the initial ":". This might be
* useful in case of typos. Can return an empty vector if there are
* no suggestions.
*/
static std::vector<std::string> suggestSmtOptions(const std::string& optionName) throw();
/**
* Initialize the options based on the given command-line arguments.
* The return value is what's left of the command line (that is, the
* non-option arguments).
*/
std::vector<std::string> parseOptions(int argc, char* argv[], options::OptionsHandler* handler) throw(OptionException);
/**
* Get the setting for all options.
*/
std::vector< std::vector<std::string> > getOptions() const throw();
};/* class Options */
}/* CVC4 namespace */
#include "options/base_options.h"
#endif /* __CVC4__OPTIONS__OPTIONS_H */
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