I would read

foo.if { bar() }

as return

foo

if

bar()

is true

Thinking of which, isn't that bad of a concept actually

yeah, the result would have to be a nullable type which is suboptimal

that's how ternary operator in python works:

foo if condition else bar

Being able to assign

if-else

and

when

blocks is a nice feature, but i'd like to be able to use

condition ? foo : bar

instead of

if (condition) foo else bar

for the same reason that i like python ternary over C/Java ternary.