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Merge pull request #9522 from ethereum/smt_fix_tuple_pop

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[SMTChecker] Fix ICE in tuples again
This commit is contained in:
chriseth 2020-07-27 19:03:12 +02:00 committed by GitHub
commit 0a42ac2a5a
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 22 additions and 4 deletions
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12
libsolidity/formal/SMTEncoder.cpp
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@ -1100,7 +1100,11 @@ void SMTEncoder::arrayPop(FunctionCall const& _funCall)
void SMTEncoder::arrayPushPopAssign(Expression const& _expr, smtutil::Expression const& _array)
{
if (auto const* id = dynamic_cast<Identifier const*>(&_expr))
Expression const* expr = &_expr;
if (auto const* tupleExpr = dynamic_cast<TupleExpression const*>(expr))
expr = innermostTuple(*tupleExpr);
if (auto const* id = dynamic_cast<Identifier const*>(expr))
{
auto varDecl = identifierToVariable(*id);
solAssert(varDecl, "");
@ -1108,9 +1112,9 @@ void SMTEncoder::arrayPushPopAssign(Expression const& _expr, smtutil::Expression
resetReferences(*varDecl);
m_context.addAssertion(m_context.newValue(*varDecl) == _array);
}
else if (auto const* indexAccess = dynamic_cast<IndexAccess const*>(&_expr))
else if (auto const* indexAccess = dynamic_cast<IndexAccess const*>(expr))
arrayIndexAssignment(*indexAccess, _array);
else if (auto const* funCall = dynamic_cast<FunctionCall const*>(&_expr))
else if (auto const* funCall = dynamic_cast<FunctionCall const*>(expr))
{
FunctionType const& funType = dynamic_cast<FunctionType const&>(*funCall->expression().annotation().type);
if (funType.kind() == FunctionType::Kind::ArrayPush)
@ -1132,7 +1136,7 @@ void SMTEncoder::arrayPushPopAssign(Expression const& _expr, smtutil::Expression
arrayPushPopAssign(memberAccess->expression(), symbArray->currentValue());
}
}
else if (dynamic_cast<MemberAccess const*>(&_expr))
else if (dynamic_cast<MemberAccess const*>(expr))
m_errorReporter.warning(
9599_error,
_expr.location(),

7
test/libsolidity/smtCheckerTests/types/tuple_array_pop_1.sol Normal file
View File

@ -0,0 +1,7 @@
pragma experimental SMTChecker;
contract C {
int[] a;
function f() public { (a).pop();}
}
// ----
// Warning 2529: (78-87): Empty array "pop" detected here.

7
test/libsolidity/smtCheckerTests/types/tuple_array_pop_2.sol Normal file
View File

@ -0,0 +1,7 @@
pragma experimental SMTChecker;
contract C {
int[] a;
function f() public { (((((a))))).pop();}
}
// ----
// Warning 2529: (78-95): Empty array "pop" detected here.