public override void VisitForCycleNode(ForCycleNode fc)
{
fc.Counter.Visit(this);
fc.LeftBound.Visit(this);
fc.RightBound.Visit(this);
fc.Step.Visit(this);
fc.Stat.Visit(this);
}
public override void VisitForCycleNode(ForCycleNode fc)
{
Text += IndentStr() + "for ";
fc.Counter.Visit(this);
Text += " in (";
fc.LeftBound.Visit(this);
Text += ", ";
fc.RightBound.Visit(this);
Text += ", ";
fc.Step.Visit(this);
Text += ")";
Text += Environment.NewLine;
fc.Stat.Visit(this);
}
public virtual void VisitForCycleNode(ForCycleNode fc)
{
}
public override void VisitForCycleNode(ForCycleNode fc)
{
Console.WriteLine(Tag + " VisitForCycleNoe");
fc.Step.Visit(this);
if (GetLastLine().Accum.StartsWith(TempVariableName))
{
GetLastLine().Accum = "lc" + GetLastLine().Label;
}
var step = GetLastLine().Accum;
fc.LeftBound.Visit(this);
var L = GetLastLine().Accum;
fc.RightBound.Visit(this);
if (GetLastLine().Accum.StartsWith(TempVariableName))
{
GetLastLine().Accum = "lr" + GetLastLine().Label;
}
var R = GetLastLine().Accum;
var initCounterLine = new ThreeAddrLine();
initCounterLine.Accum = fc.Counter.Name;
initCounterLine.OpType = ThreeAddrOpType.Assign;
initCounterLine.RightOp = L;
initCounterLine.Label = GenNewLabel();
Data.Add(initCounterLine);
var startLoopLabel = GenNewLabel();
var checkLine = new ThreeAddrLine();
checkLine.Label = startLoopLabel;
checkLine.Accum = GenNewTemporaryVariable();
checkLine.LeftOp = fc.Counter.Name;
checkLine.OpType = ToStringHelper.ToString(BinaryOpType.Less);
checkLine.RightOp = R;
Data.Add(checkLine);
var whileLine = new ThreeAddrLine();
whileLine.Label = GenNewLabel();
whileLine.LeftOp = GetLastLine().Accum;
whileLine.OpType = ThreeAddrOpType.IfGoto;
Data.Add(whileLine);
var outsideWhileLine = new ThreeAddrLine();
outsideWhileLine.Label = GenNewLabel();
outsideWhileLine.OpType = ThreeAddrOpType.Goto;
Data.Add(outsideWhileLine);
whileLine.RightOp = GenNewLabel();
fc.Stat.Visit(this);
var counterIncLine = new ThreeAddrLine();
counterIncLine.Label = GenNewLabel();
counterIncLine.Accum = fc.Counter.Name;
counterIncLine.LeftOp = fc.Counter.Name;
counterIncLine.OpType = ToStringHelper.ToString(BinaryOpType.Plus);
counterIncLine.RightOp = step;
Data.Add(counterIncLine);
var gotoStartLine = new ThreeAddrLine();
gotoStartLine.Label = GenNewLabel();
gotoStartLine.OpType = ThreeAddrOpType.Goto;
gotoStartLine.RightOp = startLoopLabel;
Data.Add(gotoStartLine);
InsertNop();
outsideWhileLine.RightOp = GetLastLine().Label;
}
public override void VisitForCycleNode(ForCycleNode fc)
{
fc.Stat.Visit(this);
}
