cerc-io/solidity
11
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Partial support for if statements.

Browse Source
This commit is contained in:
chriseth
2017-08-23 17:37:35 +02:00
parent 5bfd5d98c1
commit 75f09f2a84
4 changed files with 128 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files
libsolidity/formal/Z3Interface.cpp
+11 -1
View File
@@ -72,21 +72,28 @@ void Z3Interface::addAssertion(Expression const& _expr)
pair<CheckResult, vector<string>> Z3Interface::check(vector<Expression> const& _expressionsToEvaluate)
{
// cout << "---------------------------------" << endl;
// cout << m_solver << endl;
CheckResult result;
switch (m_solver.check())
{
case z3::check_result::sat:
result = CheckResult::SAT;
cout << "sat" << endl;
break;
case z3::check_result::unsat:
result = CheckResult::UNSAT;
cout << "unsat" << endl;
break;
case z3::check_result::unknown:
result = CheckResult::UNKNOWN;
cout << "unknown" << endl;
break;
default:
solAssert(false, "");
}
// cout << "---------------------------------" << endl;
vector<string> values;
if (result != CheckResult::UNSAT)
@@ -107,6 +114,7 @@ z3::expr Z3Interface::toZ3Expr(Expression const& _expr)
arguments.push_back(toZ3Expr(arg));
static map<string, unsigned> arity{
{"ite", 3},
{"not", 1},
{"and", 2},
{"or", 2},
@@ -135,7 +143,9 @@ z3::expr Z3Interface::toZ3Expr(Expression const& _expr)
}
assert(arity.count(n) && arity.at(n) == arguments.size());
if (n == "not")
if (n == "ite")
return z3::ite(arguments[0], arguments[1], arguments[2]);
else if (n == "not")
return !arguments[0];
else if (n == "and")
return arguments[0] && arguments[1];