public static IADNode ForLoop()
{
MainFSM.GetNextToken();
if (MainFSM.GetNextToken().Type != TokenType.leftRBType)
{
ParserFunctions.SyntaxError("Byl ocekavan znak \'(\'");
}
var result = new ADForLoop();
if (MainFSM.PeekNextToken().Type != TokenType.semiType)
{
result.DeclarationPart = PrecedenceSyntaxAnalysis.Precedence(TokenType.semiType);
}
if (MainFSM.GetNextToken().Type != TokenType.semiType)
{
ParserFunctions.SyntaxError("Byl ocekavan znak \';\'");
}
if (MainFSM.PeekNextToken().Type != TokenType.semiType)
{
result.ConditionPart = PrecedenceSyntaxAnalysis.Precedence(TokenType.semiType);
}
if (MainFSM.GetNextToken().Type != TokenType.semiType)
{
ParserFunctions.SyntaxError("Byl ocekavan znak \';\'");
}
if (MainFSM.PeekNextToken().Type != TokenType.rightRBType)
{
result.IncrementalPart = PrecedenceSyntaxAnalysis.Precedence(TokenType.rightRBType);
}
if (MainFSM.GetNextToken().Type != TokenType.rightRBType)
{
ParserFunctions.SyntaxError("Byl ocekavan znak \')\'");
}
if (MainFSM.GetNextToken().Type != TokenType.leftCBType)
{
ParserFunctions.SyntaxError("Byl ocekavan znak \'{\'");
}
ParserFunctions.STablesStack.Push(new STable());
result.Body = ParserFunctions.statement_list();
if (MainFSM.GetNextToken().Type != TokenType.rightCBType)
{
ParserFunctions.SyntaxError("Byl ocekavan znak \'}\'");
}
ParserFunctions.STablesStack.Pop();
return(result);
}
public static void PrintForLoop(ADForLoop forLoop, string returnLabel)
{
if (forLoop.DeclarationPart != null)
{
Console.WriteLine("# deklaracni cast");
Console.WriteLine(PrintExpression(forLoop.DeclarationPart));
}
var condLabel = GenerateLabel();
var endLabel = GenerateLabel();
Console.WriteLine($"{condLabel}:");
if (forLoop.ConditionPart != null)
{
Console.WriteLine("# podminkova cast");
Console.WriteLine(PrintExpression(forLoop.ConditionPart));
Console.WriteLine("# Vyhodnoceni podminky");
EvalCondition(endLabel);
}
Console.WriteLine("# telo cyklu for");
foreach (var item in forLoop.Body)
{
if (item is ADContinue)
{
Console.WriteLine(PrintExpression(forLoop.IncrementalPart));
}
PrintNode(item, endLabel, condLabel, returnLabel, forLoop.IncrementalPart);
}
if (forLoop.IncrementalPart != null)
{
Console.WriteLine("# inkrementacni cast");
Console.WriteLine(PrintExpression(forLoop.IncrementalPart));
}
Console.WriteLine($"jmp {condLabel}");
Console.WriteLine($"{endLabel}:");
}
public static void PrintForLoop(ADForLoop loop, string tab)
{
Console.WriteLine($"{tab}|- For loop");
Console.WriteLine($"{tab}|\t Initial:");
PrintExpression(loop.DeclarationPart, tab + "\t\t");
Console.WriteLine($"{tab}|\t Condition:");
PrintExpression(loop.ConditionPart, tab + "\t\t");
Console.WriteLine($"{tab}|\t Increment:");
PrintExpression(loop.IncrementalPart, tab + "\t\t");
if (loop.Body.Count() > 0)
{
Console.WriteLine($"{tab}|\t Body:");
foreach (var node in loop.Body)
{
PrintNode(node, tab + "\t\t");
}
}
}
