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[dh-make-perl] / dev / arm / libtest-harness-perl / libtest-harness-perl-3.12 / lib / TAP / Parser / Source.pm

diff --git a/dev/arm/libtest-harness-perl/libtest-harness-perl-3.12/lib/TAP/Parser/Source.pm b/dev/arm/libtest-harness-perl/libtest-harness-perl-3.12/lib/TAP/Parser/Source.pm
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+package TAP::Parser::Source;
+
+use strict;
+use vars qw($VERSION @ISA);
+
+use TAP::Object                  ();
+use TAP::Parser::IteratorFactory ();
+
+@ISA = qw(TAP::Object);
+
+# Causes problem on MacOS and shouldn't be necessary anyway
+#$SIG{CHLD} = sub { wait };
+
+=head1 NAME
+
+TAP::Parser::Source - Stream output from some source
+
+=head1 VERSION
+
+Version 3.12
+
+=cut
+
+$VERSION = '3.12';
+
+=head1 SYNOPSIS
+
+  use TAP::Parser::Source;
+  my $source = TAP::Parser::Source->new({ parser => $parser });
+  my $stream = $source->source(['/usr/bin/ruby', 'mytest.rb'])->get_stream;
+
+=head1 DESCRIPTION
+
+Takes a command and hopefully returns a stream from it.
+
+=head1 METHODS
+
+=head2 Class Methods
+
+=head3 C<new>
+
+ my $source = TAP::Parser::Source->new({ parser => $parser });
+
+Returns a new C<TAP::Parser::Source> object.
+
+=cut
+
+# new() implementation supplied by TAP::Object
+
+sub _initialize {
+    my ( $self, $args ) = @_;
+    $self->{switches} = [];
+    $self->{parser}   = $args->{parser};    # TODO: accessor
+    _autoflush( \*STDOUT );
+    _autoflush( \*STDERR );
+    return $self;
+}
+
+##############################################################################
+
+=head2 Instance Methods
+
+=head3 C<source>
+
+ my $source = $source->source;
+ $source->source(['./some_prog some_test_file']);
+
+ # or
+ $source->source(['/usr/bin/ruby', 't/ruby_test.rb']);
+
+Getter/setter for the source.  The source should generally consist of an array
+reference of strings which, when executed via L<&IPC::Open3::open3|IPC::Open3>,
+should return a filehandle which returns successive rows of TAP.  C<croaks> if
+it doesn't get an arrayref.
+
+=cut
+
+sub source {
+    my $self = shift;
+    return $self->{source} unless @_;
+    unless ( 'ARRAY' eq ref $_[0] ) {
+        $self->_croak('Argument to &source must be an array reference');
+    }
+    $self->{source} = shift;
+    return $self;
+}
+
+##############################################################################
+
+=head3 C<get_stream>
+
+ my $stream = $source->get_stream;
+
+Returns a L<TAP::Parser::Iterator> stream of the output generated by executing
+C<source>.  C<croak>s if there was no command found.
+
+=cut
+
+sub get_stream {
+    my ($self) = @_;
+    my @command = $self->_get_command
+      or $self->_croak('No command found!');
+
+    return $self->{parser}->make_iterator(
+        {   command => \@command,
+            merge   => $self->merge
+        }
+    );
+}
+
+sub _get_command { return @{ shift->source || [] } }
+
+##############################################################################
+
+=head3 C<merge>
+
+  my $merge = $source->merge;
+
+Sets or returns the flag that dictates whether STDOUT and STDERR are merged.
+
+=cut
+
+sub merge {
+    my $self = shift;
+    return $self->{merge} unless @_;
+    $self->{merge} = shift;
+    return $self;
+}
+
+# Turns on autoflush for the handle passed
+sub _autoflush {
+    my $flushed = shift;
+    my $old_fh  = select $flushed;
+    $| = 1;
+    select $old_fh;
+}
+
+1;
+
+=head1 SUBCLASSING
+
+Please see L<TAP::Parser/SUBCLASSING> for a subclassing overview.
+
+=head2 Example
+
+  package MyRubySource;
+
+  use strict;
+  use vars '@ISA';
+
+  use Carp qw( croak );
+  use TAP::Parser::Source;
+
+  @ISA = qw( TAP::Parser::Source );
+
+  # expect $source->(['mytest.rb', 'cmdline', 'args']);
+  sub source {
+    my ($self, $args) = @_;
+    my ($rb_file) = @$args;
+    croak("error: Ruby file '$rb_file' not found!") unless (-f $rb_file);
+    return $self->SUPER::source(['/usr/bin/ruby', @$args]);
+  }
+
+=head1 SEE ALSO
+
+L<TAP::Object>,
+L<TAP::Parser>,
+L<TAP::Parser::Source::Perl>,
+
+=cut
+