newline_before_return

Warns about missing newline before return in a code block

Example

BAD:

int fn() {
  final a = 0;
  return 1; // LINT
}

void fn2() {
  if (true) {
    final a = 0;
    return; // LINT
  }
}

GOOD:

int fn0() {
  return 1; // OK for single-line code blocks
}

Function getCallback() {
  return () {
    return 1; // OK
  };
}

int fn() {
  final a = 0;

  return 1; // newline added -- OK
}

void fn2() {
  if (true) {
    return; // right under a conditional -- OK
  }
}