Documented or not, it was implemented.
No, this is an unfair statement. There was no
extra code added to make it work. Instead, there wasn't
enough code to make sure it was rejected as illegal.
As others have pointed out, this code to make sure it's rejected as illegal is being slowly introduced into the implementation, so as not to break anyone's code that took advantage of this bug in the existing implementation.
Amongst the developers, there is no controversy that @array->[$element] and %hash->{$element} has always been a bug.
-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.
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