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I have been reading kyle's Context tutorial. Now I just wonder - how much of context is compile-time, how much run-time? Has that been discussed yet?

I ask because

perl -le 'my $f = 1; ($f > 0 ? @a : $a ) = ("a", "b", "c")' Assignment to both a list and a scalar at -e line 1, at EOF Execution of -e aborted due to compilation errors.

could be resolved at run-time, which isn't, because it barfs at compile-time. This works, however:

perl -le 'my $f = -1; ($f > 0 ? @a : @b ) = ("a", "b", "c"); print "a: + @a\nb: @b"' a: b: a b c perl -le 'my $f = 1; ($f > 0 ? @a : @b ) = ("a", "b", "c"); print "a: +@a\nb: @b"' a: a b c b:

update: diagnostics tells me that

Execution of -e aborted due to compilation errors (#1)
(F) If you assign to a conditional operator, the 2nd and 3rd arguments
must either both be scalars or both be lists. Otherwise Perl won't
know which context to supply to the right side.

which looks like establishing the context for the RHS is a compile-time thing. Is there such a thing as runtime context resolving, at all?


In reply to Context: compile-time vs. run-time by shmem

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