Is there Scala equivalent of C# "as" keyword?

Is there Scala equivalent of C# as keyword?

var something = obj as MyClass;

Scala'开发者_运维问答s asInstanceOf throws java.lang.ClassCastException:

val something = obj.asInstanceOf[MyClass]

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After reading up on C# a bit, I realized you probably meant this:

val foo = if (bar.isInstaceOf[Foo]) bar.asInstanceOf[Foo] else null.asInstanceOf[Foo]

It should be noted that using null is discouraged in Scala. You should really do this:

val foo = if (bar.isInstaceOf[Foo]) Some(bar.asInstanceOf[Foo]) else None

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You can use pattern matching, like explained here: How do I cast a variable in Scala?