Scala 3 indentation: lexical scope

Does anyone know if it is possible to start a new lexical scope and if so how?
Naive use of a colon does not seem to work, even when I use the -Yindent-colons options.


If you don’t want to use braces you could use the locally function. It already exists in Scala 2 to overcome issues with defining local code blocks with just { }.

$ bin/scala -Yindent-colons
Starting scala3 REPL...
scala> def foo =                                                                
     |   val a = 1
     |   locally:
     |     val a = 2
     |     println(a)
     |   println(a)
def foo: Unit

scala> foo                                                                      

Wow. Was not aware of this. Thank you.