Pre-SIP: A Syntax for Collection Literals

[mberndt]

@ghik

Maybe there is a way to enhance the inference machinery to address its limitations (inability to express nested collections) instead of creating entirely new syntax?

As I have pointed out earlier, @JD557 has already demonstrated how this can be done without new syntax, including nesting.

Pre-SIP: a syntax for aggregate literals

This is a good point. With an explicit short operator (either & or something else, maybe even c like R), this seems like something that could be implemented just as a stdlib/library level, and would bring pretty much the same benefits (quick example: Scastie - An interactive playground for Scala.) I have mixed feelings about the proposal overall. Like Jeremy mentions, I don’t think I would like this on production code (it seems too easy to accidentally use a change collection’s type) and, while…

Unfortunately, the proponents of this feature have yet to explain why this isn’t good enough.

Incidentally, I think this demonstrates why we need a better tool than a simple forum to discuss these issues. It is simply too easy for points to be buried in these long form threads without structure.