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Merge pull request #9513 from ethereum/smt_fix_fixed_bytes_access

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[SMTChecker] Fix ICE on fixed bytes access
This commit is contained in:
chriseth
2020-07-28 23:24:04 +02:00
committed by GitHub
parent 73506e2858 ad1798b000
commit aea75d0f5b
5 changed files with 48 additions and 11 deletions
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libsolidity/formal/SMTEncoder.cpp
+9 -10
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@@ -923,6 +923,15 @@ void SMTEncoder::endVisit(IndexAccess const& _indexAccess)
if (_indexAccess.annotation().type->category() == Type::Category::TypeType)
return;
if (_indexAccess.baseExpression().annotation().type->category() == Type::Category::FixedBytes)
{
m_errorReporter.warning(
7989_error,
_indexAccess.location(),
"Assertion checker does not yet support index accessing fixed bytes."
);
return;
}
shared_ptr<smt::SymbolicVariable> array;
if (auto const* id = dynamic_cast<Identifier const*>(&_indexAccess.baseExpression()))
@@ -930,16 +939,6 @@ void SMTEncoder::endVisit(IndexAccess const& _indexAccess)
auto varDecl = identifierToVariable(*id);
solAssert(varDecl, "");
array = m_context.variable(*varDecl);
if (varDecl->type()->category() == Type::Category::FixedBytes)
{
m_errorReporter.warning(
7989_error,
_indexAccess.location(),
"Assertion checker does not yet support index accessing fixed bytes."
);
return;
}
}
else if (auto const* innerAccess = dynamic_cast<IndexAccess const*>(&_indexAccess.baseExpression()))
{