Method syncCursors

src/mode/modeHandler.ts:127–148

* Updates VSCodeVim's internal representation of cursors to match VSCode's selections. * This loses some information, so it should only be done when necessary.

()

   * This loses some information, so it should only be done when necessary.
   */
  public syncCursors() {
    // TODO: getCursorsAfterSync() is basically this, but stupider
    const { selections } = this.vimState.editor;
    // TODO: this if block is a workaround for a problem described here https://github.com/VSCodeVim/Vim/pull/8426
    if (
      selections.length === 1 &&
      selections[0].isEqual(new Range(new Position(0, 0), new Position(0, 0)))
    ) {
      return;
    }

    if (
      !this.vimState.cursorStartPosition.isEqual(selections[0].anchor) ||
      !this.vimState.cursorStopPosition.isEqual(selections[0].active)
    ) {
      this.vimState.desiredColumn = selections[0].active.character;
    }

    this.vimState.cursors = selections.map(({ active, anchor }) =>
      active.isBefore(anchor) ? new Cursor(anchor.getLeft(), active) : new Cursor(anchor, active),
    );
  }

  /**
   * This is easily the worst function in VSCodeVim.