internal override bool TryBindOuter(ScopeStatement from, string name, bool allowGlobals, out JVariable variable)
{
// Functions expose their locals to direct access
ContainsNestedFreeVariables = true;
if (TryGetVariable(name, out variable)) {
variable.AccessedInNestedScope = true;
if (variable.Kind == VariableKind.Local || variable.Kind == VariableKind.Parameter) {
from.AddFreeVariable(variable, true);
for (ScopeStatement scope = from.Parent; scope != this; scope = scope.Parent) {
scope.AddFreeVariable(variable, false);
}
AddCellVariable(variable);
} else if(allowGlobals) {
from.AddReferencedGlobal(name);
}
return true;
}
return false;
}
internal override bool TryBindOuter(ScopeStatement from, string name, bool allowGlobals, out JVariable variable)
{
if (allowGlobals) {
// Unbound variable
from.AddReferencedGlobal(name);
if (from.HasLateBoundVariableSets) {
// If the context contains unqualified exec, new locals can be introduced
// Therefore we need to turn this into a fully late-bound lookup which
// happens when we don't have a JVariable.
variable = null;
return false;
} else {
// Create a global variable to bind to.
variable = EnsureGlobalVariable(name);
return true;
}
}
variable = null;
return false;
}