Re^2: current/active package

Except,

sub woot
{
   my ($self) = @_;
   print __PACKAGE__, "\n"; # <-- prints "foo"
   print ref($self), "\n";  # <-- prints nothing
}
[download]

While,

sub woot
{
   my ($self) = @_;
   print __PACKAGE__, "\n"; # <-- prints "foo"
   print $self, "\n";       # <-- prints "bar"
}
[download]

I think this is because, in this simple example, the object was never blessed. Had it been blessed, I think ikegami's answer is correct.

Comment on Re^2: current/active package Select or Download Code

Replies are listed 'Best First'.
Re^3: current/active package by ikegami (Patriarch) on Sep 25, 2009 at 06:06 UTC
yeah, oops. `sub class_method { my ($class) = @_; print "$class\n"; } sub object_method { my ($self) = @_; my $class = ref($self); print "$class\n"; } Class->class_method(); $obj->object_method();` [download]	[reply] [d/l]
Re^3: current/active package by rovf (Priest) on Sep 25, 2009 at 07:51 UTC
the object was never blessed. There is no object at all. Note that the OP's call of woot is done like this: `package main; bar->woot();` [download] This means that he is writing a package name to the left of ->, i.e. woot is might be something like a constructor. So you don't have an object, but you do have a package name. -- Ronald Fischer <ynnor@mm.st>	[reply] [d/l]
Re^4: current/active package by toddfreed (Novice) on Sep 25, 2009 at 14:10 UTC
In the example, there are no objects. This is supposed to be invoking a package-level method with ISA inheritance, knowing the package you are in, and the package the sub was invoked upon. I realize that in the example, $_[0] = the package the sub was invoked upon. But aren't there other ways to invoke the function in which that will not be true? What about bar::woot() ???	[reply]
Re^5: current/active package by ikegami (Patriarch) on Sep 25, 2009 at 15:22 UTC
But aren't there other ways to invoke the function in which that will not be true? Yes. The only difference between a subroutine call, a static method call, a virtual object method call and a non-virtual object method call is in how the sub is called. If it's called improperly, it's a bug, and it will result in buggy behaviour. What about bar::woot() ??? `bar::woot()` doesn't exist, so you'll get a run-time error.	[reply] [d/l]