Re: [FWP] Testing list?

[Uri Guttman <uri@sysarch.com>]

>>>>> "RJK" == Ronald J Kimball <rjk@linguist.dartmouth.edu> writes:

  RJK> @a ||= (1, 2);

  RJK> This is a compile-time error.

  RJK> Should it be legal code?  Justify your position.

i see what you are trying to do there but does it make sense? || puts
scalar contexts on its arguments so:

	$n = @a || 3 ;

would assign the length of @a or 4 to $n.

so your code is really:

	@a = @a || (1, 2) ;

but with both @a's trying being the same thing (which is what op= does)
which is a contradiction since the left @a is the array for assignment
and the right @a being the length which is not assignable.

so you have a scalar and array context being applied to @a at the same
time. not nice.

so it makes sense to me for it to be a compile time error.

uri

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