public static IEnumerable <SymbolExpression> GetGlobalSymbols(this ContainerExpression container)
{
var locals = container.GetLocalSymbols();
var symbols = container.GetSymbols();
return(symbols.Where(symbol => !locals.Contains(symbol)));
}
public static IEnumerable <SymbolExpression> GetLocalSymbols(this ContainerExpression container)
{
return(container.GetLocalSymbols(Enumerable.Empty <String>()));
}