private IGate EvaluateRecurse(ICodeLabelEvaluator cg, IGate g)
{
if (g.Type == GateType.Input)
{
if (g is LabelGate)
{
var lg = (LabelGate)g;
lg.Label.Evaluate(cg);
}
}
else
{
var list = new List <IGate>();
foreach (var i in g.GetInputs())
{
var u = i;
var l = _gc.GetScheduledLabel(u);
if (null != l)
{
u = l;
}
else
{
u = EvaluateRecurse(cg, u);
}
list.Add(u);
}
g = SMG.Common.Gate.Compose(g.Type, list);
}
return(g);
}
/// <summary>
/// Evaluates the label into a code generator, once.
/// </summary>
/// <param name="cg">The code writer.</param>
public void Evaluate(ICodeLabelEvaluator cg)
{
if (!IsEvaluated)
{
EvaluateOnce(cg);
IsEvaluated = true;
}
}
/// <summary>
/// Emits code to initialize labels up to the given stage.
/// </summary>
/// <param name="writer">To code writer where to evaluate the labels to.</param>
/// <param name="stage">Evaluate variables scheduled up to this stage.</param>
public void Emit(ICodeLabelEvaluator cg, int stage)
{
var labels = _queue.Where(l => l.Stage <= stage).ToList();
foreach (var label in labels)
{
Gate.TraceLabel(label.Gate, label.OriginalGate, "emit");
label.Evaluate(cg);
_queue.Remove(label);
}
}
private IGate EvaluateRecurse(ICodeLabelEvaluator cg, IGate g)
{
if (g.Type == GateType.Input)
{
if (g is LabelGate)
{
var lg = (LabelGate)g;
lg.Label.Evaluate(cg);
}
}
else
{
var list = new List<IGate>();
foreach (var i in g.GetInputs())
{
var u = i;
var l = _gc.GetScheduledLabel(u);
if (null != l)
{
u = l;
}
else
{
u = EvaluateRecurse(cg, u);
}
list.Add(u);
}
g = SMG.Common.Gate.Compose(g.Type, list);
}
return g;
}
private void EvaluateOnce(ICodeLabelEvaluator cg)
{
var g = EvaluateRecurse(cg, _originalgate);
cg.EmitCodeLabelAssignment(Name, g);
}
/// <summary>
/// Evaluates the label into a code generator, once.
/// </summary>
/// <param name="cg">The code writer.</param>
public void Evaluate(ICodeLabelEvaluator cg)
{
if (!IsEvaluated)
{
EvaluateOnce(cg);
IsEvaluated = true;
}
}
/// <summary>
/// Emits code to initialize labels up to the given stage.
/// </summary>
/// <param name="writer">To code writer where to evaluate the labels to.</param>
/// <param name="stage">Evaluate variables scheduled up to this stage.</param>
public void Emit(ICodeLabelEvaluator cg, int stage)
{
var labels = _queue.Where(l => l.Stage <= stage).ToList();
foreach(var label in labels)
{
Gate.TraceLabel(label.Gate, label.OriginalGate, "emit");
label.Evaluate(cg);
_queue.Remove(label);
}
}
private void EvaluateOnce(ICodeLabelEvaluator cg)
{
var g = EvaluateRecurse(cg, _originalgate);
cg.EmitCodeLabelAssignment(Name, g);
}