prefer_asserts_in_initializer_lists
Assert should be in the initializer list.
Description
#The analyzer produces this diagnostic when the body of a constructor begins with one or more assert statements.
Example
#The following code produces this diagnostic because the body of the constructor begins with an assert statement:
dart
class C {
C(int i) {
assert(i != 0);
}
}
Common fixes
#Move the assert to the initializer list, removing the body if there are only assert statements in it:
dart
class C {
C(int i) : assert(i != 0);
}
Unless stated otherwise, the documentation on this site reflects Dart 3.7.3. Page last updated on 2025-05-08. View source or report an issue.