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# Copyright 2011-2012 Yuki Izumi. ( anneli AT cpan DOT org ) |
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# This is free software; you can redistribute it and/or modify it under the |
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# same terms as Perl itself. |
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package Erlang::Parser::Node::Receive; |
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use Moose; |
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with 'Erlang::Parser::Node'; |
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has 'alts' => (is => 'rw', required => 1, isa => 'ArrayRef[Erlang::Parser::Node::Alt]'); |
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has 'aft' => (is => 'rw', required => 0, isa => 'Maybe[Erlang::Parser::Node::ReceiveAfter]'); |
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sub print { |
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my ($self, $fh, $depth) = @_; |
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$depth ||= 0; |
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print $fh "receive\n"; |
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$depth++; |
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print $fh "\t" x $depth; |
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my $first = 1; |
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foreach (@{$self->alts}) { |
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if ($first) { $first = 0 } else { print $fh ";\n", "\t" x $depth } |
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$_->print($fh ,$depth); |
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} |
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$depth--; |
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print $fh "\n", "\t" x $depth; |
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$self->aft->print($fh, $depth) if defined $self->aft; |
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print $fh "\n", "\t" x $depth, "end"; |
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} |
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__PACKAGE__->meta->make_immutable; |
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=head1 NAME |
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Erlang::Parser::Node::Receive - a receive statement |
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=head1 DESCRIPTION |
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Receives a message from the mailbox which matches any pattern (and guard); |
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optionally with a timeout. |
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=head2 Accessors |
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=over 4 |
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=item C<alts> |
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A list of L<Erlang::Parser::Node::Alt>s which are matched against the process |
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mailbox. |
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=item C<aft> |
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An optional L<Erlang::Parser::Node::ReceiveAfter>. |
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=back |
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=head2 Methods |
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=over 4 |
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=item C<print> |
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Pretty-prints the node to its filehandle argument. |
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=back |
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=head1 EXAMPLE |
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receive |
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{X, Y} when is_bool(X) -> |
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X; |
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{X, Y, Z} -> |
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Y + Z; |
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_ -> |
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io:format("wth~n", []) |
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after |
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10000 -> |
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{error, timeout} |
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end |
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=cut |
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1; |
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# vim: set sw=4 ts=4: |