private static BoundScope CreateParentScopes(BoundGlobalScope previous)
{
var stack = new Stack <BoundGlobalScope>();
while (previous != null)
{
stack.Push(previous);
previous = previous.Previous;
}
BoundScope parent = null;
// submission 3-> submission 2 -> submission 1
while (stack.Count > 0)
{
previous = stack.Pop();
var scope = new BoundScope(parent);
foreach (var v in previous.Variables)
{
scope.TryDeclare(v);
}
parent = scope;
}
return(parent);
}
public Binder(BoundScope parent)
{
_scope = new BoundScope(parent);
}
public BoundScope(BoundScope parent)
{
Parent = parent;
}