Problems with juxt_function_call (help wanted)

[murtaza64]

Groovy's optional parentheses for function calls have created an absolute nightmare.

For example, String foo and print foo should be parsed differently.

I noticed my parser fails on def x = foo "bar". To fix this, I'm trying to allow juxt_function_calls as _expressions. But that leads to a whole host of other ambiguities:

x ? f y:b : z // not ambiguous but hard to parse once you see the first colon
f y:b ? ... // is it (f y:b) ? ... or f y:(b ? ...)
a b, c ? d : e // is it (a b, c) ? d : e or a b, (c ? d : e)

and if I solve them by adding conflicts or trying to tweak precedence for map_item and ternary, all the tests break.

I feel like i need to redo the whole juxt_function_call thing... but I'm not sure how

[murtaza64]

It seems like some of this can be alleviated by allowing closure as the sole child of function_call:

    function_call: $ =>
      prec.left(2, seq( //higher precedence than juxt_function_call
        field('function', $._prefix_expression),
        field('args', choice($.argument_list, $.closure)),
      )),

gonna run with this for a while and see if it's better