Are feed operators supposed to append??

[lizmat]

$ perl6 -e 'my @a; @a <== 1,2,3; @a <== <a b c>; dd @a'
Array @a = [1, 2, 3, "a", "b", "c"]  # expected Array @a = ["a", "b", "c"]

In my mind, the pointy end of a feed operator always initializes the receiver. This seems to be supported by the specs: https://github.com/perl6/specs/blob/master/S06-routines.pod , feed operators:

It binds the (potentially lazy) list from the blunt end to the slurpy parameter(s) of the receiver on the sharp end.

which would imply that the current implementation of feed operators (which, afaik, predates the GLR) is incorrect.

[Kaiepi]

It looks like only ==>> and <<== are supposed to append:

To append multiple sources to the next sink, double the angle:

[ugexe]

That can be interpreted as “if you want to append multiple sources INSTEAD of appending a single source”

[lizmat]

Perhaps this is a problem-solving issue after all :-)

[AlexDaniel]

Perhaps this is a problem-solving issue after all :-)

I think I agree, and if we can get a few more tickets for feed operators, maybe we'll be able to fix a bunch of things in the spec at once.

[lizmat]

Moved to Raku/problem-solving#27 , so closing issue here.