public static ADVariableAssignment IDAssign(bool dereference)
{
var token = MainFSM.GetNextToken();
if (token.Type != TokenType.idType)
{
ParserFunctions.SyntaxError("Byla ocekavana promenna.");
}
var record = ParserFunctions.STSearch(token.Attribute);
if (record == null)
{
ParserFunctions.SemanticError($"Promenna {token.Attribute} nebyla deklarovana");
}
var asgnOperator = MainFSM.GetNextToken();
if (!IsAssignOperator(asgnOperator.Type))
{
ParserFunctions.SyntaxError("Byl ocekavan prirazovaci operator");
}
var assign = new ADVariableAssignment()
{
Dereference = dereference, STRecord = record, AssignOperator = asgnOperator.Type
};
bool nextDereference = false;
if (MainFSM.PeekNextToken().Type == TokenType.starType)
{
nextDereference = true;
MainFSM.GetNextToken();
}
if (MainFSM.PeekNextToken().Type == TokenType.idType)
{
if (IsAssignOperator(MainFSM.PeekNextToken(2).Type))
{
assign.Expression = IDAssign(nextDereference);
}
else
{
assign.Expression = PrecedenceSyntaxAnalysis.Precedence(TokenType.semiType);
}
}
else
{
assign.Expression = PrecedenceSyntaxAnalysis.Precedence(TokenType.semiType);
}
return(assign);
}
public static void PrintVariableAssignment(ADVariableAssignment asgn, string tab)
{
Console.WriteLine($"{tab}|- Assign:");
if (asgn.STRecord != null)
{
Console.WriteLine($"{tab}|\tName: {asgn.STRecord.Name}");
}
Console.WriteLine($"{tab}|\tOperator: {asgn.AssignOperator}");
if (asgn.Expression != null)
{
Console.WriteLine($"{tab}|\tExpression:");
PrintExpression(asgn.Expression, tab + "\t\t");
}
if (asgn.Dereference)
{
Console.WriteLine($"{tab}|\tType: Dereference");
}
}
