/// <inheritdoc />
protected override void flowThrough()
{
// Create the name of the variable in global controls
// Should be unique for each function
var varNameInGlobalStore = new VariableName("static_" + _variableName.Value + OwningPPGraph.FunctionName + OwningScript);
// Get the variable from global store
var variableInGlobalStore = OutSet.GetControlVariable(varNameInGlobalStore);
// Initialize the variable with _initializer if it may be uninitialized and has an initializer
var values = variableInGlobalStore.ReadMemory(OutSnapshot);
if (_initializer != null && values.PossibleValues.Any(a => a is UndefinedValue))
{
var newValues = new List <Value> (values.PossibleValues.Where(a => !(a is UndefinedValue)));
newValues.AddRange(_initializer.Values.PossibleValues);
variableInGlobalStore.WriteMemory(OutSnapshot, new MemoryEntry(newValues), true);
}
else if (_initializer == null)
{
variableInGlobalStore.WriteMemory(OutSnapshot, new MemoryEntry(OutSnapshot.UndefinedValue), true);
}
// Static variable is an alias of the variable from global store (this respects the implementation in official PHP interpreter)
_variable.LValue.SetAliases(OutSnapshot, variableInGlobalStore);
}