`if ((previous == null) or (previous.type == type)...

# announcements

[Marcin Wisniowski]

if ((previous == null) or (previous.type == type)) {
IntelliJ complains about the dot here, why is previous not smart-cast to not null if it's checked first?

[diesieben07]

Depends where previous comes from.

[Marcin Wisniowski]

It's a nullable argument to the function, so it's immutable

[diesieben07]

Oh, you're using or. You need to use ||.

[diesieben07]

or does not short-circuit.

[Marcin Wisniowski]

Oh right, thanks for pointing that out. 🙂

[Marcin Wisniowski]

Now it works