sthefanoss

# Adds "//@dart=2.9" on every .dart file inside /lib folder.
# Useful when migrating to null-safety.

addDart29ToFile() {
  echo "//@dart=2.9" > tmpfile
    cat "$1" >> tmpfile
    mv tmpfile "$1"
}

runFolderRecursively () {

sthefanoss

import "dart:math";

class Complex {
  double real;
  double imaginary;

  Complex(this.real, this.imaginary);

  Complex.polar(double magnitude, double angle) {
    this.real = magnitude * cos(angle);

sthefanoss

import 'package:flutter/material.dart';

void main() {
  runApp(
    MaterialApp(
      debugShowCheckedModeBanner: false,
      home: StrangeWidget(),
    ),
  );
}

sthefanoss

import 'package:flutter/material.dart';

void main() => runApp(MyApp());


class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) => MaterialApp(home: MyHomePage());
}

sthefanoss

import 'dart:math';

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override