public void VisitNode(JSFunctionExpression fn)
{
// Create a new visitor for nested function expressions
if (Stack.OfType<JSFunctionExpression>().Skip(1).FirstOrDefault() != null) {
var nested = new OptimizeArrayEnumerators(TypeSystem, FunctionSource);
nested.Visit(fn);
return;
}
Function = fn;
VisitChildren(fn);
}
public void VisitNode(JSFunctionExpression fn)
{
// Create a new visitor for nested function expressions
if (Stack.OfType <JSFunctionExpression>().Skip(1).FirstOrDefault() != null)
{
var nested = new OptimizeArrayEnumerators(TypeSystem, FunctionSource);
nested.Visit(fn);
return;
}
Function = fn;
FirstPass = FunctionSource.GetFirstPass(Function.Method.QualifiedIdentifier);
VisitChildren(fn);
if (EnumeratorsToKill.Count > 0)
{
// Rerun the static analyzer since we made major changes
FunctionSource.InvalidateFirstPass(Function.Method.QualifiedIdentifier);
FirstPass = FunctionSource.GetFirstPass(Function.Method.QualifiedIdentifier);
// Scan to see if any of the enumerators we eliminated uses of are now
// unreferenced. If they are, eliminate them entirely.
foreach (var variable in EnumeratorsToKill)
{
var variableName = variable.Name;
var accesses = (
from a in FirstPass.Accesses
where a.Source.Name == variableName
select a
);
if (!accesses.Any())
{
var eliminator = new VariableEliminator(
variable, new JSNullExpression()
);
eliminator.Visit(fn);
}
}
}
}
public void VisitNode(JSFunctionExpression fn)
{
// Create a new visitor for nested function expressions
if (Stack.OfType<JSFunctionExpression>().Skip(1).FirstOrDefault() != null) {
var nested = new OptimizeArrayEnumerators(TypeSystem, FunctionSource);
nested.Visit(fn);
return;
}
Function = fn;
FirstPass = FunctionSource.GetFirstPass(Function.Method.QualifiedIdentifier);
VisitChildren(fn);
if (EnumeratorsToKill.Count > 0) {
// Rerun the static analyzer since we made major changes
FunctionSource.InvalidateFirstPass(Function.Method.QualifiedIdentifier);
FirstPass = FunctionSource.GetFirstPass(Function.Method.QualifiedIdentifier);
// Scan to see if any of the enumerators we eliminated uses of are now
// unreferenced. If they are, eliminate them entirely.
foreach (var variable in EnumeratorsToKill) {
var variableName = variable.Name;
var accesses = (
from a in FirstPass.Accesses
where a.Source.Name == variableName
select a
);
if (!accesses.Any()) {
var eliminator = new VariableEliminator(
variable, new JSNullExpression()
);
eliminator.Visit(fn);
}
}
}
}
