diff options
Diffstat (limited to 'libsolidity/analysis')
| -rw-r--r-- | libsolidity/analysis/TypeChecker.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/libsolidity/analysis/TypeChecker.cpp b/libsolidity/analysis/TypeChecker.cpp index a672cd66..7ea10c5b 100644 --- a/libsolidity/analysis/TypeChecker.cpp +++ b/libsolidity/analysis/TypeChecker.cpp @@ -1406,8 +1406,10 @@ bool TypeChecker::visit(TupleExpression const& _tuple) } else { + bool const v050 = m_scope->sourceUnit().annotation().experimentalFeatures.count(ExperimentalFeature::V050); bool isPure = true; TypePointer inlineArrayType; + for (size_t i = 0; i < components.size(); ++i) { // Outside of an lvalue-context, the only situation where a component can be empty is (x,). @@ -1418,6 +1420,17 @@ bool TypeChecker::visit(TupleExpression const& _tuple) components[i]->accept(*this); types.push_back(type(*components[i])); + if (types[i]->category() == Type::Category::Tuple) + if (dynamic_cast<TupleType const&>(*types[i]).components().empty()) + { + if (_tuple.isInlineArray()) + m_errorReporter.fatalTypeError(components[i]->location(), "Array component cannot be empty."); + if (v050) + m_errorReporter.fatalTypeError(components[i]->location(), "Tuple component cannot be empty."); + else + m_errorReporter.warning(components[i]->location(), "Tuple component cannot be empty."); + } + // Note: code generation will visit each of the expression even if they are not assigned from. if (types[i]->category() == Type::Category::RationalNumber && components.size() > 1) if (!dynamic_cast<RationalNumberType const&>(*types[i]).mobileType()) |