# $Id: SubCounter.pir 38689 2009-05-11 17:22:23Z NotFound $

=head1 Counter Example

This example shows the usage of C<Stream::Sub>.

=head1 FUNCTIONS

=over 4

=item _main

Creates a C<Stream::Sub> and dumps it.

=cut

.sub _main
    .local pmc stream

    load_bytecode 'Stream/Base.pbc'
    load_bytecode 'Stream/Sub.pbc'

    stream = new ['Stream'; 'Sub']

    # set the stream's source sub
    .const 'Sub' temp = "_counter"
    assign stream, temp

    # dump the stream
    stream."dump"()

    end
.end

=item _counter

This sub is used as the source for the counter stream.

It writes the numbers 0 .. 9 as strings to the stream.

=cut

.sub _counter :method
    .local string str
    .local int i

    i = 0

LOOP:
    # streams are using strings,
    # so we have to convert the number into a string
    str = i

    # write the string
    self."write"( str )

    inc i
    if i < 10 goto LOOP
.end

=back

=head1 AUTHOR

Jens Rieks E<lt>parrot at jensbeimsurfen dot deE<gt> is the author
and maintainer.
Please send patches and suggestions to the Perl 6 Internals mailing list.

=head1 COPYRIGHT

Copyright (C) 2004-2009, Parrot Foundation.

=cut

# Local Variables:
#   mode: pir
#   fill-column: 100
# End:
# vim: expandtab shiftwidth=4 ft=pir:
