`Null check operator used on a null value` when `style` is not provided

[lukehutch]

If I call

          child: TimestampedChatMessage(
            text: message.message,
            sentAt: message.timestamp!.formattedTimeHm,
          ),

Then I get Null check operator used on a null value

which throws here:

    return TimestampedChatMessageRenderObject(
      text: text,
      sentAt: sentAt,
      delimiter: delimiter,
      textDirection: Directionality.of(context),
      textStyle: effectiveTextStyle!,
      sentAtStyle: effectiveTextStyle
          .copyWith(
            color: style!.color!.withAlpha(180),    // <---------- here
            fontSize: 13,
          )
          .merge(sentAtStyle),
      maxLines: maxLines,
      showMoreText: viewMoreText,
      showsTextStyle: showTextStyle!,
      sendingStatusIcon: sendingStatusIcon != null
          ? String.fromCharCode(sendingStatusIcon!.icon!.codePoint)
          : null,
      sendingStatusIconStyle: sendingStatusIcon != null ? iconTextStyle : null,
    );
  }

because style is only an optional parameter:

  const TimestampedChatMessage({
    super.key,
    required this.text,
    required this.sentAt,
    this.sendingStatusIcon,
    this.style,
    this.sentAtStyle,
    this.showMoreTextStyle,
    this.maxLines,
    this.delimiter = '\u2026',
    this.viewMoreText = 'showMore',
  });
  final String text;
  final String sentAt;
  final String delimiter;
  final Icon? sendingStatusIcon;
  final TextStyle? style;
  final TextStyle? showMoreTextStyle;
  final TextStyle? sentAtStyle;
  final int? maxLines;
  final String viewMoreText;

You may need to check the other uses of ! too -- it should be used sparingly!

[AliouneSakho]

Bonjour Luka. Merci de prendre le temps de m'écrire pour les problèmes de mon package. En effet le null check operator ne devrait pas être utilisé ici. d'autant plus qu'il y a une valeur par défaut. je vais prendre cela en compte dans ma prochaine mise à jour

Le jeu. 2 mai 2024 à 23:02, Luke Hutchison @.***> a écrit :

If I call

      child: TimestampedChatMessage(
        text: message.message,
        sentAt: message.timestamp!.formattedTimeHm,
      ),

Then I get Null check operator used on a null value

which throws here:

return TimestampedChatMessageRenderObject(
  text: text,
  sentAt: sentAt,
  delimiter: delimiter,
  textDirection: Directionality.of(context),
  textStyle: effectiveTextStyle!,
  sentAtStyle: effectiveTextStyle
      .copyWith(
        color: style!.color!.withAlpha(180),    // <---------- here
        fontSize: 13,
      )
      .merge(sentAtStyle),
  maxLines: maxLines,
  showMoreText: viewMoreText,
  showsTextStyle: showTextStyle!,
  sendingStatusIcon: sendingStatusIcon != null
      ? String.fromCharCode(sendingStatusIcon!.icon!.codePoint)
      : null,
  sendingStatusIconStyle: sendingStatusIcon != null ? iconTextStyle : null,
);

}

because style is only an optional parameter:

const TimestampedChatMessage({ super.key, required this.text, required this.sentAt, this.sendingStatusIcon, this.style, this.sentAtStyle, this.showMoreTextStyle, this.maxLines, this.delimiter = '\u2026', this.viewMoreText = 'showMore', }); final String text; final String sentAt; final String delimiter; final Icon? sendingStatusIcon; final TextStyle? style; final TextStyle? showMoreTextStyle; final TextStyle? sentAtStyle; final int? maxLines; final String viewMoreText;

You may need to check the other uses of ! too -- it should be used sparingly!

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