protected override ICode VisitVar(ExprVar e)
{
this.js.Append(this.resolver.LocalVarNames[e]);
// Extra var processing
this.vars.Add(e);
if (e.ExprType == Expr.NodeType.VarParameter)
{
if (!this.parameters.ContainsKey(((ExprVarParameter)e).Parameter))
{
this.parameters.Add(((ExprVarParameter)e).Parameter, e);
}
}
// Need to visit into phi variables to check for parameters
if (e.ExprType == Expr.NodeType.VarPhi)
{
var args = ((ExprVarPhi)e).Exprs.Where(x => x.ExprType == Expr.NodeType.VarParameter).Cast <ExprVarParameter>();
foreach (var arg in args)
{
if (!this.parameters.ContainsKey(arg.Parameter))
{
this.parameters.Add(arg.Parameter, arg);
}
}
}
return(e);
}
protected override ICode VisitVar(ExprVar e)
{
var aInfo = this.GetAInfo(e);
aInfo.count++;
if (this.inPhiCount > 0)
{
aInfo.mustKeep = true;
}
return(base.VisitVar(e));
}
protected virtual ICode VisitVar(ExprVar e)
{
switch (e.ExprType)
{
case Expr.NodeType.VarExprInstResult:
return(this.VisitVarInstResult((ExprVarInstResult)e));
case Expr.NodeType.VarLocal:
return(this.VisitVarLocal((ExprVarLocal)e));
case Expr.NodeType.VarParameter:
return(this.VisitVarParameter((ExprVarParameter)e));
case Expr.NodeType.VarPhi:
return(this.VisitVarPhi((ExprVarPhi)e));
case Expr.NodeType.VarThis:
return(this.VisitVarThis((ExprVarThis)e));
default:
throw new NotImplementedException("Cannot handle: " + e.ExprType);
}
}
protected override ICode VisitVar(ExprVar e)
{
this.vars.Add(e);
return(e);
}
private bool AreClustered(ExprVar a, ExprVar b)
{
return(phiClusters.Any(x => x.Contains(a) && x.Contains(b)));
}
public Updater(ExprVar target)
{
this.target = target;
}
private AssignmentInfo GetAInfo(ExprVar e)
{
return(this.assignments.ValueOrDefault(e, () => new AssignmentInfo(), true));
}
