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
|
/*
This file is part of solidity.
solidity 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.
solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libsolidity/formal/SymbolicVariables.h>
#include <libsolidity/formal/SymbolicTypes.h>
#include <libsolidity/ast/AST.h>
using namespace std;
using namespace dev;
using namespace dev::solidity;
SymbolicVariable::SymbolicVariable(
TypePointer _type,
string const& _uniqueName,
smt::SolverInterface& _interface
):
m_type(move(_type)),
m_uniqueName(_uniqueName),
m_interface(_interface),
m_ssa(make_shared<SSAVariable>())
{
}
string SymbolicVariable::currentName() const
{
return uniqueSymbol(m_ssa->index());
}
string SymbolicVariable::uniqueSymbol(unsigned _index) const
{
return m_uniqueName + "_" + to_string(_index);
}
SymbolicBoolVariable::SymbolicBoolVariable(
TypePointer _type,
string const& _uniqueName,
smt::SolverInterface&_interface
):
SymbolicVariable(move(_type), _uniqueName, _interface)
{
solAssert(m_type->category() == Type::Category::Bool, "");
}
smt::Expression SymbolicBoolVariable::valueAtIndex(int _index) const
{
return m_interface.newVariable(uniqueSymbol(_index), make_shared<smt::Sort>(smt::Kind::Bool));
}
SymbolicIntVariable::SymbolicIntVariable(
TypePointer _type,
string const& _uniqueName,
smt::SolverInterface& _interface
):
SymbolicVariable(move(_type), _uniqueName, _interface)
{
solAssert(isNumber(m_type->category()), "");
}
smt::Expression SymbolicIntVariable::valueAtIndex(int _index) const
{
return m_interface.newVariable(uniqueSymbol(_index), make_shared<smt::Sort>(smt::Kind::Int));
}
SymbolicAddressVariable::SymbolicAddressVariable(
string const& _uniqueName,
smt::SolverInterface& _interface
):
SymbolicIntVariable(make_shared<IntegerType>(160), _uniqueName, _interface)
{
}
SymbolicFixedBytesVariable::SymbolicFixedBytesVariable(
unsigned _numBytes,
string const& _uniqueName,
smt::SolverInterface& _interface
):
SymbolicIntVariable(make_shared<IntegerType>(_numBytes * 8), _uniqueName, _interface)
{
}
|
