// Logs an error at `$pointer` with `$string` message
// --------------------------------------------------------------------------------
// @param [string] $string: error message
// @param [number] $pointer: pointer position
// --------------------------------------------------------------------------------
// @return [list] (pointer, false)

@function _throw($string, $pointer) {
  @warn "ERROR::#{$pointer}::#{$string}";
  @return $pointer, false;
}