Typeaware autocompletion

[pfitzseb]

@ararslan

In order to autocomplete methods from a pipe, the expression on the left hand side would need to be evaluated so that its type could be determined and the appropriate methods suggested. That seems like a waste of computational resources, since the expression would need to be evaluated for the autocomplete then again for the actual call that’s made.

I think the REPL autocomplete does something similar already – when you have e.g.

struct Foo
  a::Int
end
[Foo(1), Foo(2)][1].\tab

you get a autocompleted. IIRC, Julia looks at the return type of the expression before the dot and then finds its return type, which you could also do for pipes.