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prism/tests/languages/csharp/switch_feature.test

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public static decimal CalculateToll(object vehicle) =>
vehicle switch
{
DeliveryTruck t when t.GrossWeightClass > 5000 => 10.00m + 5.00m,
DeliveryTruck t when t.GrossWeightClass < 3000 => 10.00m - 2.00m,
DeliveryTruck _ => 10.00m,
_ => throw new ArgumentException("Not a known vehicle type", nameof(vehicle))
};
DeliveryTruck t when t.GrossWeightClass switch
{
> 5000 => 10.00m + 5.00m,
< 3000 => 10.00m - 2.00m,
_ => 10.00m,
},
DeliveryTruck t when t.GrossWeightClass switch
{
< 3000 => 10.00m - 2.00m,
>= 3000 and <= 5000 => 10.00m,
> 5000 => 10.00m + 5.00m,
},
switch (DateTime.Now.DayOfWeek)
{
case DayOfWeek.Sunday:
case DayOfWeek.Saturday:
Console.WriteLine("The weekend");
break;
case DayOfWeek.Monday:
Console.WriteLine("The first day of the work week.");
break;
case DayOfWeek.Friday:
Console.WriteLine("The last day of the work week.");
break;
default:
Console.WriteLine("The middle of the work week.");
break;
}
switch (str)
{
case "1":
case "small":
cost += 25;
break;
case "2":
case "medium":
cost += 25;
goto case "1";
case "3":
case "large":
cost += 50;
goto case "1";
default:
Console.WriteLine("Invalid selection. Please select 1, 2, or 3.");
break;
}
switch (sh)
{
// Note that this code never evaluates to true.
case Shape shape when shape == null:
break;
case null:
break;
case Rectangle r when r.Length == r.Width && r.Area > 0:
break;
default:
break;
}
switch (coll)
{
case Array arr:
break;
case IEnumerable<int> ieInt:
break;
case object o:
break;
default:
break;
}
bool IsValidPercentage(object x) => x is
>= 0 and <= 100 or // integer tests
>= 0F and <= 100F or // float tests
>= 0D and <= 100D; // double tests
bool isSmallByte(object o) => o is byte and < 100;
case (0, int x):
case (int x, 0):
Console.WriteLine(x);
case < 2: break;
case 0 or 1 or 2 or 3 or 4 or 5: break;
int x = b switch { <100 => 0, 100 => 1, 101 => 2, >101 => 3 };
----------------------------------------------------
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]
----------------------------------------------------
Checks for switch statements and expressions.
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