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Index access.

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This commit is contained in:
Christian 2015-02-21 00:46:35 +01:00
parent 5e32083179
commit be15e0b424
1 changed files with 22 additions and 7 deletions
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21
AST.cpp
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@ -609,13 +609,28 @@ void MemberAccess::checkTypeRequirements()
void IndexAccess::checkTypeRequirements() void IndexAccess::checkTypeRequirements()
{ {
m_base->checkTypeRequirements(); m_base->checkTypeRequirements();
if (m_base->getType()->getCategory() != Type::Category::Mapping) switch (m_base->getType()->getCategory())
BOOST_THROW_EXCEPTION(m_base->createTypeError("Indexed expression has to be a mapping (is " + {
m_base->getType()->toString() + ")")); case Type::Category::Array:
{
ArrayType const& type = dynamic_cast<ArrayType const&>(*m_base->getType());
m_index->expectType(IntegerType(256));
m_type = type.getBaseType();
m_isLValue = true;
break;
}
case Type::Category::Mapping:
{
MappingType const& type = dynamic_cast<MappingType const&>(*m_base->getType()); MappingType const& type = dynamic_cast<MappingType const&>(*m_base->getType());
m_index->expectType(*type.getKeyType()); m_index->expectType(*type.getKeyType());
m_type = type.getValueType(); m_type = type.getValueType();
m_isLValue = true; m_isLValue = true;
break;
}
default:
BOOST_THROW_EXCEPTION(m_base->createTypeError(
"Indexed expression has to be a mapping or array (is " + m_base->getType()->toString() + ")"));
}
} }
void Identifier::checkTypeRequirements() void Identifier::checkTypeRequirements()