I have always considered this a non-problem, because i never use that ref($_[0]) mumbo jumbo. Consider the following code: 

my $foo = Foo->new1;
print $foo->{bar};

# here is the problem, Jim
#my $bar = $foo->new1;
#print $bar->{bar};

my $baz = $foo->new2;
print $baz->{bar};

package Foo;

sub new1 { bless { bar => 'baz' }, $_[0] }
sub new2 { bless { bar => 'baz' }, ref($_[0]) || $_[0] }

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The only reason why you need that ref($_[0]) mumbo jumbo is so the the commented out code will work. I never construct a new object from another ... i use Clone instead.

As for the open stuff, i totally agree ... but if you do really need to abstract open, use IO::File 

my $fh = foo('foo.pl','r');
print while <$fh>;

sub foo { IO::File->new(@_) }

[download]
Again, i do not consider this much of problem because there are clean workarounds.

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

In reply to Re: multi-arg bless by jeffa
in thread multi-arg bless by ysth

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