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-rw-r--r--libsolidity/AST.cpp89
1 files changed, 53 insertions, 36 deletions
diff --git a/libsolidity/AST.cpp b/libsolidity/AST.cpp
index 674f33b7..a77bf0a2 100644
--- a/libsolidity/AST.cpp
+++ b/libsolidity/AST.cpp
@@ -58,11 +58,11 @@ void ContractDefinition::checkTypeRequirements()
checkAbstractFunctions();
checkAbstractConstructors();
- FunctionDefinition const* function = constructor();
- if (function && !function->returnParameters().empty())
- BOOST_THROW_EXCEPTION(
- function->returnParameterList()->createTypeError("Non-empty \"returns\" directive for constructor.")
- );
+ FunctionDefinition const* functionDefinition = constructor();
+ if (functionDefinition && !functionDefinition->getReturnParameters().empty())
+ BOOST_THROW_EXCEPTION(functionDefinition->getReturnParameterList()->createTypeError(
+ "Non-empty \"returns\" directive for constructor."
+ ));
FunctionDefinition const* fallbackFunction = nullptr;
for (ASTPointer<FunctionDefinition> const& function: definedFunctions())
@@ -119,8 +119,7 @@ map<FixedHash<4>, FunctionTypePointer> ContractDefinition::interfaceFunctions()
for (auto const& it: exportedFunctionList)
exportedFunctions.insert(it);
- solAssert(
- exportedFunctionList.size() == exportedFunctions.size(),
+ solAssert(exportedFunctionList.size() == exportedFunctions.size(),
"Hash collision at Function Definition Hash calculation"
);
@@ -178,7 +177,9 @@ void ContractDefinition::checkDuplicateFunctions() const
errinfo_sourceLocation(overloads[j]->location()) <<
errinfo_comment("Function with same name and arguments defined twice.") <<
errinfo_secondarySourceLocation(SecondarySourceLocation().append(
- "Other declaration is here:", overloads[i]->location()))
+ "Other declaration is here:", overloads[i]->location())
+ )
+
);
}
}
@@ -767,8 +768,10 @@ void Return::checkTypeRequirements()
if (!m_returnParameters)
BOOST_THROW_EXCEPTION(createTypeError("Return arguments not allowed."));
if (m_returnParameters->parameters().size() != 1)
- BOOST_THROW_EXCEPTION(createTypeError("Different number of arguments in return statement "
- "than in returns declaration."));
+ BOOST_THROW_EXCEPTION(createTypeError(
+ "Different number of arguments in return statement "
+ "than in returns declaration."
+ ));
// this could later be changed such that the paramaters type is an anonymous struct type,
// but for now, we only allow one return parameter
m_expression->expectType(*m_returnParameters->parameters().front()->type());
@@ -795,10 +798,14 @@ void Assignment::checkTypeRequirements(TypePointers const*)
TypePointer resultType = m_type->binaryOperatorResult(Token::AssignmentToBinaryOp(m_assigmentOperator),
m_rightHandSide->type());
if (!resultType || *resultType != *m_type)
- BOOST_THROW_EXCEPTION(createTypeError("Operator " + string(Token::toString(m_assigmentOperator)) +
- " not compatible with types " +
- m_type->toString() + " and " +
- m_rightHandSide->type()->toString()));
+ BOOST_THROW_EXCEPTION(createTypeError(
+ "Operator " +
+ string(Token::toString(m_assigmentOperator)) +
+ " not compatible with types " +
+ m_type->toString() +
+ " and " +
+ m_rightHandSide->type()->toString()
+ ));
}
}
@@ -850,16 +857,13 @@ void BinaryOperation::checkTypeRequirements(TypePointers const*)
m_right->checkTypeRequirements(nullptr);
m_commonType = m_left->type()->binaryOperatorResult(m_operator, m_right->type());
if (!m_commonType)
- BOOST_THROW_EXCEPTION(
- createTypeError(
- "Operator " +
- string(Token::toString(m_operator)) +
- " not compatible with types " +
- m_left->type()->toString() +
- " and " +
- m_right->type()->toString()
- )
- );
+ BOOST_THROW_EXCEPTION(createTypeError(
+ "Operator " + string(Token::toString(m_operator)) +
+ " not compatible with types " +
+ m_left->type()->toString() +
+ " and " +
+ m_right->type()->toString()
+ ));
m_type = Token::isCompareOp(m_operator) ? make_shared<BoolType>() : m_commonType;
}
@@ -1040,7 +1044,8 @@ void NewExpression::checkTypeRequirements(TypePointers const*)
TypePointers{contractType},
strings(),
strings(),
- FunctionType::Location::Creation);
+ FunctionType::Location::Creation
+ );
}
void MemberAccess::checkTypeRequirements(TypePointers const* _argumentTypes)
@@ -1069,19 +1074,25 @@ void MemberAccess::checkTypeRequirements(TypePointers const* _argumentTypes)
);
if (!storageType->members().membersByName(*m_memberName).empty())
BOOST_THROW_EXCEPTION(createTypeError(
- "Member \"" + *m_memberName + "\" is not available in " +
+ "Member \"" +
+ *m_memberName +
+ "\" is not available in " +
type.toString() +
" outside of storage."
));
BOOST_THROW_EXCEPTION(createTypeError(
- "Member \"" + *m_memberName + "\" not found or not visible "
- "after argument-dependent lookup in " + type.toString()
+ "Member \"" +
+ *m_memberName +
+ "\" not found or not visible after argument-dependent lookup in " +
+ type.toString()
));
}
else if (possibleMembers.size() > 1)
BOOST_THROW_EXCEPTION(createTypeError(
- "Member \"" + *m_memberName + "\" not unique "
- "after argument-dependent lookup in " + type.toString()
+ "Member \"" +
+ *m_memberName +
+ "\" not unique after argument-dependent lookup in " +
+ type.toString()
));
m_referencedDeclaration = possibleMembers.front().declaration;
@@ -1114,10 +1125,12 @@ void IndexAccess::checkTypeRequirements(TypePointers const*)
if (type.isString())
BOOST_THROW_EXCEPTION(createTypeError("Index access for string is not possible."));
m_index->expectType(IntegerType(256));
- if (type.isByteArray())
- m_type = make_shared<FixedBytesType>(1);
- else
- m_type = type.baseType();
+
+ m_type = type.baseType();
+ if(IntegerConstantType const* integerType = dynamic_cast<IntegerConstantType const*>(m_index->type().get()))
+ if (!type.isDynamicallySized() && type.length() <= integerType->literalValue(nullptr))
+ BOOST_THROW_EXCEPTION(createTypeError("Out of bounds access."));
+
m_isLValue = type.location() != DataLocation::CallData;
break;
}
@@ -1143,7 +1156,8 @@ void IndexAccess::checkTypeRequirements(TypePointers const*)
if (!length)
BOOST_THROW_EXCEPTION(m_index->createTypeError("Integer constant expected."));
m_type = make_shared<TypeType>(make_shared<ArrayType>(
- DataLocation::Memory, type.actualType(),
+ DataLocation::Memory,
+ type.actualType(),
length->literalValue(nullptr)
));
}
@@ -1151,7 +1165,10 @@ void IndexAccess::checkTypeRequirements(TypePointers const*)
}
default:
BOOST_THROW_EXCEPTION(m_base->createTypeError(
- "Indexed expression has to be a type, mapping or array (is " + m_base->type()->toString() + ")"));
+ "Indexed expression has to be a type, mapping or array (is " +
+ m_base->type()->toString() +
+ ")"
+ ));
}
}