pkg/front_end/testcases/offsets/step_through_patterns.dart.textual_outline_modelled.expect

import 'dart:math' show pi;

abstract class Shape {}

class Circle implements Shape {
  Circle(this.radius);
  final double radius;
}

class Square implements Shape {
  Square(this.length);
  final double length;
}

double calculateArea(Shape shape) => switch (shape) {
      Square(length: var l) when l >= 0 => l * l,
      Circle(radius: var r) when r >= 0 => pi * r * r,
      Square(length: var l) when l < 0 => -1,
      Circle(radius: var r) when r < 0 => -1,
      Shape() => 0
    };

testMain() {}