Hi,
There is in the spectests this example:
my $text = "abc";
my %ret;
%ret = map { $_ => uc $_; }, split "", $text;
is ~%ret.kv, "a A b B c C", "=> works in a map block";
However, it seems from S06:
"|{...}| is always a block. However, if it is completely empty or
consists of a single list, the first element of which is either a hash
or a pair, it is executed immediately to compose a Hash object."
That this means the { $_ => uc $_; } above would end up composing a Hash
object (unless the semicolon is meant to throw a spanner in the
hash-composer works?) It says you can use sub to disambiguate, but
%ret = map sub { $_ => uc $_; }, split "", $text;
Doesn't work since $_ isn't an automatic parameter for a sub, like it
would be in just a block (in the implementation, and if I understand
correctly in the spec too).
%ret = map sub { $^a => uc $^a; }, split "", $text;
Will work, of course... But anyway, I guess either of:
* The test is wrong to expect to have that parsed as a block
* The semicolon disambiguates it - I don't see any suggestion of that in
the spec, though, so if it's the case a note on this would be helpful
Thanks,
Jonathan
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