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| author | Alex Beregszaszi <alex@rtfs.hu> | 2018-08-08 04:30:14 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-08-08 04:30:14 +0800 |
| commit | 4dc3335cda18bae7c683227a9795a7cc1de95fd2 (patch) | |
| tree | c4b20da6a5867d0c0cca4ed0288752ca98c6bf6b | |
| parent | 8e93b729a4fb50d1d0f21b86a7434ed91ae8826a (diff) | |
| parent | f024efb7abca7cea11735ab1e8afad90eb35284d (diff) | |
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Merge pull request #4744 from ethereum/smt-magic-variable
SMT: do not crash on referencing MagicVariableDeclaration
| -rw-r--r-- | libsolidity/formal/SMTChecker.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/libsolidity/formal/SMTChecker.cpp b/libsolidity/formal/SMTChecker.cpp index 17b50a38..88c1e56a 100644 --- a/libsolidity/formal/SMTChecker.cpp +++ b/libsolidity/formal/SMTChecker.cpp @@ -375,8 +375,14 @@ void SMTChecker::endVisit(Identifier const& _identifier) } else if (SSAVariable::isSupportedType(_identifier.annotation().type->category())) { - VariableDeclaration const& decl = dynamic_cast<VariableDeclaration const&>(*(_identifier.annotation().referencedDeclaration)); - defineExpr(_identifier, currentValue(decl)); + if (VariableDeclaration const* decl = dynamic_cast<VariableDeclaration const*>(_identifier.annotation().referencedDeclaration)) + defineExpr(_identifier, currentValue(*decl)); + else + // TODO: handle MagicVariableDeclaration here + m_errorReporter.warning( + _identifier.location(), + "Assertion checker does not yet support the type of this variable." + ); } else if (FunctionType const* fun = dynamic_cast<FunctionType const*>(_identifier.annotation().type.get())) { |