JupiterHost.Net wrote:
perldoc B::ByteCode
has an example: $ perl -MO=Bytecode,-H,-ohi -e 'print "hi!\n"' $ perl hi hi!
hi is: #! perl use ByteLoader 0.05; [bytecode]
In the interest of learning a bit I have a couple questions I couldn't seem to find:
1) Is there a way to have code before the use BytLoader.. withotu error, like this:
#! perl
my $foo = 'bar; print $foo;
use ByteLoader 0.05; [bytecode]
$perl hi barhi! $
2) Is there a way to allow the perl in the bytecode to use variabels and functions in the plain text perl code befroe use BytLoader?
For instance is you'd bytecoded a "print "$foo\n";:
#! perl
my $foo = 'bar;
use ByteLoader 0.05; [bytecode]
$ perl hi bar $
I was hoping for this to print 123:
$ perl -MO=Bytecode,-H,-ofoob -e 'print "Foo: $foo\n"' -e syntax OK $ perl -e '$foo = 123;do foob;' Foo: $
but it didn't work :(
While this does:
$ cat regp #!/usr/bin/perl
print "Foo: $foo\n"; $ perl -e '$foo = 123;do regp;' Foo: 123 $
I bet there's a way to do this but I'm a total ByteCode rookie :)
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