You seem to believe in magical powers of static code analysis in a dynamic language.

plz tell me

 
sub func {
  my ($code,@a) = @_;
  my $b = [@a];
  eval $code;
  return $b;
}

[download]

How is the compiler supposed to know that '@a' can be destroyed w/o knowing what happens in '$code' at runtime?

Cheers Rolf

( addicted to the Perl Programming Language)

In reply to Re^4: Why doesn't perl optimize this? by LanX
in thread Why doesn't perl optimize this? by nbtrap

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