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) {} | |
---- unknown chunk starts ---- | |
; | |
---- unknown chunk ends ---- | |
testMain() {} |