1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/********************* */
/*! \file command_executor.h
** \verbatim
** Top contributors (to current version):
** Andrew Reynolds, Kshitij Bansal, Aina Niemetz
** This file is part of the CVC4 project.
** Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
** in the top-level source directory and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief An additional layer between commands and invoking them.
**/
#ifndef CVC4__MAIN__COMMAND_EXECUTOR_H
#define CVC4__MAIN__COMMAND_EXECUTOR_H
#include <iosfwd>
#include <string>
#include "api/cvc4cpp.h"
#include "expr/symbol_manager.h"
#include "options/options.h"
#include "smt/smt_engine.h"
#include "util/statistics_registry.h"
namespace CVC5 {
class Command;
namespace main {
class CommandExecutor
{
private:
std::string d_lastStatistics;
protected:
/**
* The solver object, which is allocated by this class and is used for
* executing most commands (e.g. check-sat).
*/
std::unique_ptr<api::Solver> d_solver;
/**
* The symbol manager, which is allocated by this class. This manages
* all things related to definitions of symbols and their impact on behaviors
* for commands (e.g. get-unsat-core, get-model, get-assignment), as well
* as tracking expression names. Note the symbol manager is independent from
* the parser, which uses this symbol manager given a text input.
*
* Certain commands (e.g. reset-assertions) have a specific impact on the
* symbol manager.
*/
std::unique_ptr<SymbolManager> d_symman;
Options& d_options;
api::Result d_result;
public:
CommandExecutor(Options& options);
virtual ~CommandExecutor();
/**
* Executes a command. Recursively handles if cmd is a command
* sequence. Eventually uses doCommandSingleton (which can be
* overridden by a derived class).
*/
bool doCommand(CVC5::Command* cmd);
bool doCommand(std::unique_ptr<CVC5::Command>& cmd)
{
return doCommand(cmd.get());
}
/** Get a pointer to the solver object owned by this CommandExecutor. */
api::Solver* getSolver() { return d_solver.get(); }
/** Get a pointer to the symbol manager owned by this CommandExecutor */
SymbolManager* getSymbolManager() { return d_symman.get(); }
api::Result getResult() const { return d_result; }
void reset();
SmtEngine* getSmtEngine() const { return d_solver->getSmtEngine(); }
/**
* Flushes statistics to a file descriptor.
*/
virtual void flushStatistics(std::ostream& out) const;
/**
* Flushes statistics to a file descriptor.
* Safe to use in a signal handler.
*/
void safeFlushStatistics(int fd) const;
static void printStatsFilterZeros(std::ostream& out,
const std::string& statsString);
void flushOutputStreams();
protected:
/** Executes treating cmd as a singleton */
virtual bool doCommandSingleton(CVC5::Command* cmd);
private:
CommandExecutor();
}; /* class CommandExecutor */
bool solverInvoke(api::Solver* solver,
SymbolManager* sm,
Command* cmd,
std::ostream* out);
} // namespace main
} // namespace CVC5
#endif /* CVC4__MAIN__COMMAND_EXECUTOR_H */
|
