StringProperty constructor Null safety

StringProperty(
  1. String name,
  2. String? value,
  3. {String? description,
  4. String? tooltip,
  5. bool showName = true,
  6. Object? defaultValue = kNoDefaultValue,
  7. bool quoted = true,
  8. String? ifEmpty,
  9. DiagnosticsTreeStyle style = DiagnosticsTreeStyle.singleLine,
  10. DiagnosticLevel level = DiagnosticLevel.info}
)

Create a diagnostics property for strings.

The showName, quoted, style, and level arguments must not be null.

Implementation

StringProperty(
  String super.name,
  super.value, {
  super.description,
  super.tooltip,
  super.showName,
  super.defaultValue,
  this.quoted = true,
  super.ifEmpty,
  super.style,
  super.level,
}) : assert(showName != null),
     assert(quoted != null),
     assert(style != null),
     assert(level != null);