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Bugfixes concerning variable declarations.

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Fixes #1637
This commit is contained in:
chriseth 2015-04-16 00:06:57 +02:00
parent 820239a73c
commit 6e5de4832d
2 changed files with 19 additions and 20 deletions
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16
AST.cpp
View File

@ -378,20 +378,16 @@ void VariableDeclaration::checkTypeRequirements()
if ((m_type && !m_type->isValueType()) || !m_value)
BOOST_THROW_EXCEPTION(createTypeError("Unitialized \"constant\" variable."));
}
if (!m_value)
return;
if (m_type)
{
m_value->expectType(*m_type);
if (m_isStateVariable && !m_type->externalType() && getVisibility() >= Visibility::Public)
BOOST_THROW_EXCEPTION(createTypeError("Internal type is not allowed for state variables."));
if (!FunctionType(*this).externalType())
BOOST_THROW_EXCEPTION(createTypeError("Internal type is not allowed for public state variables."));
if (m_value)
m_value->expectType(*m_type);
}
else
{
// no type declared and no previous assignment, infer the type
if (!m_value)
// This feature might be extended in the future.
BOOST_THROW_EXCEPTION(createTypeError("Assignment necessary for type detection."));
m_value->checkTypeRequirements();
TypePointer type = m_value->getType();
if (type->getCategory() == Type::Category::IntegerConstant)
@ -405,6 +401,8 @@ void VariableDeclaration::checkTypeRequirements()
BOOST_THROW_EXCEPTION(createTypeError("Variable cannot have void type."));
m_type = type;
}
if (m_isStateVariable && getVisibility() >= Visibility::Public && !FunctionType(*this).externalType())
BOOST_THROW_EXCEPTION(createTypeError("Internal type is not allowed for public state variables."));
}
bool VariableDeclaration::isExternalFunctionParameter() const

23
Parser.cpp
View File

@ -472,17 +472,18 @@ ASTPointer<TypeName> Parser::parseTypeName(bool _allowVar)
else
BOOST_THROW_EXCEPTION(createParserError("Expected type name"));
// Parse "[...]" postfixes for arrays.
while (m_scanner->getCurrentToken() == Token::LBrack)
{
m_scanner->next();
ASTPointer<Expression> length;
if (m_scanner->getCurrentToken() != Token::RBrack)
length = parseExpression();
nodeFactory.markEndPosition();
expectToken(Token::RBrack);
type = nodeFactory.createNode<ArrayTypeName>(type, length);
}
if (type)
// Parse "[...]" postfixes for arrays.
while (m_scanner->getCurrentToken() == Token::LBrack)
{
m_scanner->next();
ASTPointer<Expression> length;
if (m_scanner->getCurrentToken() != Token::RBrack)
length = parseExpression();
nodeFactory.markEndPosition();
expectToken(Token::RBrack);
type = nodeFactory.createNode<ArrayTypeName>(type, length);
}
return type;
}