covariant return types | C# Online Compiler

covariant return types by GuRuStron

using System;
					
public class Program
{
	public static void Main()
	{
		Console.WriteLine(new Example().ReturnMe());
	}
}

abstract class ExampleBase
{
    public abstract ExampleBase ReturnMe();
}
class Example : ExampleBase
{
    public override Example ReturnMe() => new Example();
}

​x
 
using System;
                    
public class Program
{
    public static void Main()
    {
        Console.WriteLine(new Example().ReturnMe());
    }
}
​
abstract class ExampleBase
{
    public abstract ExampleBase ReturnMe();
}
class Example : ExampleBase
{
    public override Example ReturnMe() => new Example();
} 

Compilation error (line 1, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 1, col 0): Syntax error.
Compilation error (line 2, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 2, col 0): Syntax error.
Compilation error (line 3, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 3, col 0): Syntax error.
Compilation error (line 4, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 4, col 0): Syntax error.
Compilation error (line 5, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 5, col 0): Syntax error.
Compilation error (line 6, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 6, col 0): Syntax error.
Compilation error (line 7, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 7, col 0): Syntax error.
Compilation error (line 8, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 8, col 0): Syntax error.
Compilation error (line 9, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 9, col 0): Syntax error.
Compilation error (line 10, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 10, col 0): Syntax error.
Compilation error (line 11, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 11, col 0): Syntax error.
Compilation error (line 12, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 12, col 0): Syntax error.
Compilation error (line 13, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 13, col 0): Syntax error.
Compilation error (line 14, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 14, col 0): Syntax error.
Compilation error (line 15, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 15, col 0): Syntax error.
Compilation error (line 16, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 16, col 0): Syntax error.
Compilation error (line 17, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 17, col 0): Syntax error.
Compilation error (line 18, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 18, col 0): Syntax error.
Compilation error (line 19, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 19, col 0): Syntax error.
Compilation error (line 20, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 20, col 0): Syntax error.
Compilation error (line 21, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 21, col 0): Syntax error.
Compilation error (line 22, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 22, col 0): Syntax error.
Compilation error (line 23, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 23, col 0): Syntax error.
Compilation error (line 24, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 24, col 0): Syntax error.
Compilation error (line 25, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 25, col 0): Syntax error.
Compilation error (line 26, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 26, col 0): Syntax error.
Compilation error (line 27, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 27, col 0): Syntax error.
Compilation error (line 28, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 28, col 0): Syntax error.
Compilation error (line 29, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 29, col 0): Syntax error.
Compilation error (line 30, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 30, col 0): Syntax error.
Compilation error (line 31, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 31, col 0): Syntax error.
Compilation error (line 32, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 32, col 0): Syntax error.
Compilation error (line 33, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 33, col 0): Syntax error.
Compilation error (line 34, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 34, col 0): Syntax error.
Compilation error (line 35, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 35, col 0): Syntax error.
Compilation error (line 36, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 36, col 0): Syntax error.
Compilation error (line 37, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 37, col 0): Syntax error.
Compilation error (line 38, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 38, col 0): Syntax error.
Compilation error (line 39, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 39, col 0): Syntax error.
Compilation error (line 40, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 40, col 0): Syntax error.
Compilation error (line 41, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 41, col 0): Syntax error.
Compilation error (line 42, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 42, col 0): Syntax error.
Compilation error (line 43, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 43, col 0): Syntax error.
Compilation error (line 44, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 44, col 0): Syntax error.
Compilation error (line 45, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 45, col 0): Syntax error.
Compilation error (line 46, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 46, col 0): Syntax error.
Compilation error (line 47, col 0): Labels are not valid outside methods/multiline lambdas.
Compilation error (line 47, col 0): Syntax error.

Last Run:	7:09:44 am
Compile:	0s
Execute:	0.139s
Memory:	0b
CPU:	0s

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