Function _swap_autosuggestion

IPython/terminal/shortcuts/auto_suggest.py:609–630

We skip most recent history entry (in either direction) if it equals the current autosuggestion because if user cycles when auto-suggestion is shown they most likely want something else than what was suggested (otherwise they would have accepted the suggestion).

(
    buffer: Buffer,
    provider: NavigableAutoSuggestFromHistory,
    direction_method: Callable,
)

def _swap_autosuggestion(
    buffer: Buffer,
    provider: NavigableAutoSuggestFromHistory,
    direction_method: Callable,
):
    """
    We skip most recent history entry (in either direction) if it equals the
    current autosuggestion because if user cycles when auto-suggestion is shown
    they most likely want something else than what was suggested (otherwise
    they would have accepted the suggestion).
    """
    suggestion = buffer.suggestion
    if not suggestion:
        return

    query = _get_query(buffer.document)
    current = query + suggestion.text

    direction_method(query=query, other_than=current, history=buffer.history)

    new_suggestion = provider.get_suggestion(buffer, buffer.document)
    buffer.suggestion = new_suggestion


def swap_autosuggestion_up(event: KeyPressEvent):