On Thu, 10 Aug 2017 02:09:30 -0700, [email protected] wrote:
> In Python one can pass a string to the exit() function
> Would it be possible to special case
Not really keen on adding special cases to support programming-by-guessing
instead of reading the documentation.
However, it's worth noting we don't have anything on the same level of
convenience as Perl's `die "foo\n"`; that is, printing some message to the user
and aborting the program. `stuff() or (note "foo" and exit 1)` works, but is
not a very obvious thing to use.
Just thinking aloud:
stuff() or exit :note<Some reasons>;
stuff() or exit 42, :note<Some reasons>;
stuff() or exit "Some reasons"; # ERROR: exit code status does not appear
to be numeric; did you mean to use
named `:note` argument to supply
an exit message instead?
P.S.: currently, there're more confusing errors existing in exit:
m: my Str $code; exit $code
rakudo-moar 5e8d46: OUTPUT: «Invocant of method 'Int' must be an object
instance of type 'Str',
not a type object of type 'Str'. Did you forget a '.new'? in block
<unit> at <tmp> line 1»
However, the same exist in many other places:
m: my Int $foo; say 42 < $foo
rakudo-moar 5e8d46: OUTPUT: «Invocant of method 'Bridge' must be an object
instance of type 'Int',
not a type object of type 'Int'. Did you forget a '.new'? in block
<unit> at <tmp> line 1»
So before adding any special cases anywhere, I think we should ask ourselves:
what ingredients does a PDG (Pretty Damn Good) error message have that we can
apply consistently on the language level? And then apply that consistently
throughout all the errors.
LTA errors is a pretty common topic, but we seem to be trying to solve the
problem by shooting off the hip any time someone brings something up. How about
a checklist for what an error must accomplish?
