diff options
Diffstat (limited to 'libsolidity/analysis/TypeChecker.cpp')
| -rw-r--r-- | libsolidity/analysis/TypeChecker.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/libsolidity/analysis/TypeChecker.cpp b/libsolidity/analysis/TypeChecker.cpp index e5660cde..99f3c64c 100644 --- a/libsolidity/analysis/TypeChecker.cpp +++ b/libsolidity/analysis/TypeChecker.cpp @@ -430,7 +430,11 @@ void TypeChecker::endVisit(InheritanceSpecifier const& _inheritance) m_errorReporter.typeError(_inheritance.location(), "Libraries cannot be inherited from."); auto const& arguments = _inheritance.arguments(); - TypePointers parameterTypes = ContractType(*base).newExpressionType()->parameterTypes(); + TypePointers parameterTypes; + if (base->contractKind() != ContractDefinition::ContractKind::Interface) + // Interfaces do not have constructors, so there are zero parameters. + parameterTypes = ContractType(*base).newExpressionType()->parameterTypes(); + if (!arguments.empty() && parameterTypes.size() != arguments.size()) { m_errorReporter.typeError( @@ -463,7 +467,7 @@ void TypeChecker::endVisit(UsingForDirective const& _usingFor) _usingFor.libraryName().annotation().referencedDeclaration ); if (!library || !library->isLibrary()) - m_errorReporter.typeError(_usingFor.libraryName().location(), "Library name expected."); + m_errorReporter.fatalTypeError(_usingFor.libraryName().location(), "Library name expected."); } bool TypeChecker::visit(StructDefinition const& _struct) @@ -1554,6 +1558,8 @@ void TypeChecker::endVisit(NewExpression const& _newExpression) if (!contract) m_errorReporter.fatalTypeError(_newExpression.location(), "Identifier is not a contract."); + if (contract->contractKind() == ContractDefinition::ContractKind::Interface) + m_errorReporter.fatalTypeError(_newExpression.location(), "Cannot instantiate an interface."); if (!contract->annotation().unimplementedFunctions.empty()) m_errorReporter.typeError( _newExpression.location(), |