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Postings from July 2016
Dave Mitchell wrote:
> I will point out
> that the new ops are restricted in where they can be used, in that
> they assume that the lexical var being created is undef/empty, non-magical
> etc. In general, code like 'my $x = $_[3]' can't assume that, due to
> closure tricks etc.
Do you mean like this?
package T { sub TIESCALAR{bless[]} sub STORE { warn "Storing $_[1]" } }
foo();
my $x = 3;
sub foo { tie $x, "T" }
That outputs:
Storing 3 at - line 1.
But it is easily translated into code using signatures:
package T { sub TIESCALAR{bless[]} sub STORE { warn "Storing $_[1]" } }
foo();
use experimental "signatures";
sub bar ($x=3) {
sub foo { tie $x, "T" }
}
bar();
Same output. That is with blead, not with your branch.
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