Picotool incorrectly flags parenthesized expressions as assertionerrors

[GiovanH]

The error message for all of these cases is always AssertionError, thrown at self._tokens[self._pos].matches(lexer.TokSymbol(keyword)) in lua.py.

Parenthesized functions
AssertionError (expected ) got ():

dbg=(function()
end)()

Correctly parsed:

dbg=function()
end
dbg = dbg()

Parenthesized tables
AssertionError (expected ) got :):
(note: tables have __sub methods defined in metatables)

somefunction({(table1 - table2):unpack()}))

Correctly parsed:

local temp = (self.pos - self.anchor)
somefunction({temp:unpack()}))

[GiovanH]

This can temporarily be worked around by replacing operators that require parentheticalization with their dunder builtin function equivalents:

This code (which is correct, but p8tool cannot parse)

somefunction((table1 - table2):unpack())

becomes

somefunction(table1:__sub(table2):unpack())