Yes, = is an operand of defined, but your whole point is that sysread($file, my $buf, ...) is like defined(my $line), but your code doesn't use defined(my $line).

In reply to Re^4: Declare my variable in sysread - Mojo::File::slurp by ikegami
in thread Declare my variable in sysread - Mojo::File::slurp by srchulo

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