// Deck value expression
public override TypeNode Visit(DeckValueNode node, object obj)
{
SourcePosition sourcePosition = node.SourcePosition;
SetTypeNode cardValueSet = StandardTypes.GetSetType(StandardTypes.CardValue);
int count = 1;
// Go through all identifiers in the deck for errors
foreach (IdentifierNode id in node.Ids)
{
Symbol symbol = SymbolTable.RetrieveSymbol(id.Text);
// If id has not been declared or the reference type is not Set OF CardValue, log error
if (symbol == null)
{
ErrorLogger.LogError(new UndeclaredVariableError(id.Text, id.SourcePosition));
return(new ErrorTypeNode(node.SourcePosition));
}
else if (symbol.Type != cardValueSet)
{
ErrorLogger.LogError(new ExpectedTypeError(node, cardValueSet, id.SourcePosition));
return(new ErrorTypeNode(node.SourcePosition));
}
count *= (symbol.Type as SetTypeNode).ElementCount; // Get total number of cards in deck
}
node.Type = new SetTypeNode(new CardTypeNode(sourcePosition), sourcePosition);
node.ElementCount = count; // Save the number of cards in the type for later use
return(node.Type);
}
// Deck value expression
public override string Visit(DeckValueNode node, object obj)
{
StringBuilder builder = new StringBuilder();
// Get the name of the node passed as parameter
IdentifierNode setId = obj as IdentifierNode;
builder.Append($"{setId};\n");
builder.Append($"{setId}.Clear();\n");
int counter = 0;
foreach (IdentifierNode id in node.Ids)
{
counter++;
// The limit condition is retrieved from the type in the symbol table
int limit = (SymbolTable.RetrieveSymbol(id.Text).Type as SetTypeNode).ElementCount;
string j = $"j_{counter}";
builder.Append($"for(int {j} = 0; {j} < {limit}; {j}++) {{\n ");
}
builder.Append($"Card _card = new Card();\n");
counter = 0;
foreach (IdentifierNode id in node.Ids)
{
counter++;
string j = $"j_{counter}";
builder.Append($"_card.CardValues.Add({id}[{j}]);\n");
}
builder.Append($"{setId}.Add(_card);\n");
foreach (IdentifierNode id in node.Ids)
{
builder.Append("}\n");
}
return(builder.ToString());
}
public abstract T Visit(DeckValueNode node, object obj);
