Well it looks like the variable $x (ie, the name) is only visible inside the do BLOCK, but the associated scalar's life is bound to the containing scope.

I'm not sure what you mean about being able to return a value, but having the inverting the order of the statements inside the do BLOCK yields the same result: 

perl -le "sub Foo::DESTROY {print 'BLAM'}; print 'A'; do { 1; my $x = 
+bless {}, 'Foo' }; print 'B' ";
A
BLAM
B

[download]
(yup, windows over here). This looks like an optimization issue, when do contains only a single statement, I guess it is optimized as a single statement executed in the containing scope, while the visibility of the variable is still limited to the do block.

The fact that it works properly when the do contains more than one statement means there isn't a real problem though, because if there's only one statement, the lexical declaration is technically not needed. (Edit: Or maybe the issue is that perl lets you declare a lexical that you never use, but that's not specific to do)

In reply to Re^3: File::Temp survival and scope created by "do" by Eily
in thread File::Temp survival and scope created by "do" by vr

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