formatFieldValue function

String formatFieldValue(FieldDescriptor field, Object? value)

One payload value as text, according to its declared FieldKind.

A kind a renderer does not know falls back to text rather than refusing the row — the vocabulary is allowed to grow without every host being updated first.

Implementation

String formatFieldValue(FieldDescriptor field, Object? value) {
  if (value == null) return '—';
  switch (field.kind) {
    case FieldKind.duration:
      return value is num ? formatDuration(value) : '$value';
    case FieldKind.bytes:
      return value is num ? formatBytes(value) : '$value';
    case FieldKind.timestamp:
      if (value is! num) return '$value';
      return DateTime.fromMillisecondsSinceEpoch(value.toInt())
          .toIso8601String();
    case FieldKind.json:
    case FieldKind.number:
    case FieldKind.text:
      return '$value';
  }
}