public override void Visit(GraphDeclEdgeNode node)
{
_symbolTable.SetCurrentNode(node);
AllType vertexFromType = _symbolTable.RetrieveSymbol(node.VertexNameFrom, false) ?? AllType.UNKNOWNTYPE;
AllType vertexToType = _symbolTable.RetrieveSymbol(node.VertexNameTo, false) ?? AllType.UNKNOWNTYPE;
CheckAllowedCast(vertexFromType, vertexToType);
foreach (KeyValuePair <string, AbstractNode> item in node.ValueList)
{
item.Value.Parent = node;
item.Value.Accept(this);
AllType? typeOfKey = _symbolTable.GetAttributeType(item.Key, AllType.EDGE);
ExpressionNode expNode;
if (item.Value is BoolComparisonNode)
{
expNode = (ExpressionNode)item.Value.Children[0];
}
else
{
expNode = item.Value as ExpressionNode;
}
if (expNode is ExpressionNode)
{
if (typeOfKey != expNode.OverAllType)
{
_symbolTable.TypeExpressionMismatch();
}
}
}
}
