X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=gitmo%2FMouse.git;a=blobdiff_plain;f=lib%2FMouse%2FUtil.pm;h=dc8c27ab214093a8adeb12b40e1d0b61f2a92ec2;hp=7d0c97d784b64ae6d34608d39ce5160741eb2452;hb=f671555230c6928a7834a9c6be047649cd0c4f5b;hpb=0fa84b98500301948bef369e9cc309bcf4d2733f diff --git a/lib/Mouse/Util.pm b/lib/Mouse/Util.pm index 7d0c97d..dc8c27a 100644 --- a/lib/Mouse/Util.pm +++ b/lib/Mouse/Util.pm @@ -1,228 +1,89 @@ -#!/usr/bin/env perl package Mouse::Util; use strict; use warnings; -use base 'Exporter'; +use base qw/Exporter/; use Carp; -BEGIN { - our %dependencies = ( - 'Scalar::Util' => { - -# VVVVV CODE TAKEN FROM SCALAR::UTIL VVVVV - 'blessed' => do { - *UNIVERSAL::a_sub_not_likely_to_be_here = sub { - my $ref = ref($_[0]); - - # deviation from Scalar::Util - # XS returns undef, PP returns GLOB. - # let's make that more consistent by having PP return - # undef if it's a GLOB. :/ - - # \*STDOUT would be allowed as an object in PP blessed - # but not XS - return $ref eq 'GLOB' ? undef : $ref; - }; - - sub { - local($@, $SIG{__DIE__}, $SIG{__WARN__}); - length(ref($_[0])) - ? eval { $_[0]->a_sub_not_likely_to_be_here } - : undef; - }, - }, - 'looks_like_number' => sub { - local $_ = shift; - - # checks from perlfaq4 - return 0 if !defined($_) or ref($_); - return 1 if (/^[+-]?\d+$/); # is a +/- integer - return 1 if (/^([+-]?)(?=\d|\.\d)\d*(\.\d*)?([Ee]([+-]?\d+))?$/); # a C float - return 1 if ($] >= 5.008 and /^(Inf(inity)?|NaN)$/i) or ($] >= 5.006001 and /^Inf$/i); - - 0; - }, - 'reftype' => sub { - local($@, $SIG{__DIE__}, $SIG{__WARN__}); - my $r = shift; - my $t; - - length($t = ref($r)) or return undef; +our @EXPORT_OK = qw( + get_linear_isa +); +our %EXPORT_TAGS = ( + all => \@EXPORT_OK, +); - # This eval will fail if the reference is not blessed - eval { $r->a_sub_not_likely_to_be_here; 1 } - ? do { - $t = eval { - # we have a GLOB or an IO. Stringify a GLOB gives it's name - my $q = *$r; - $q =~ /^\*/ ? "GLOB" : "IO"; - } - or do { - # OK, if we don't have a GLOB what parts of - # a glob will it populate. - # NOTE: A glob always has a SCALAR - local *glob = $r; - defined *glob{ARRAY} && "ARRAY" - or defined *glob{HASH} && "HASH" - or defined *glob{CODE} && "CODE" - or length(ref(${$r})) ? "REF" : "SCALAR"; - } - } - : $t - }, - 'openhandle' => sub { - my $fh = shift; - my $rt = reftype($fh) || ''; - - return defined(fileno($fh)) ? $fh : undef - if $rt eq 'IO'; - - if (reftype(\$fh) eq 'GLOB') { # handle openhandle(*DATA) - $fh = \(my $tmp=$fh); - } - elsif ($rt ne 'GLOB') { - return undef; - } - - (tied(*$fh) or defined(fileno($fh))) - ? $fh : undef; - }, - weaken => { - loaded => \&Scalar::Util::weaken, - not_loaded => sub { die "Scalar::Util required for weak reference support" }, - }, -# ^^^^^ CODE TAKEN FROM SCALAR::UTIL ^^^^^ - }, - 'MRO::Compat' => { +BEGIN { + my $impl; + if ($] >= 5.009_005) { + $impl = \&mro::get_linear_isa; + } else { + my $loaded = do { + local $SIG{__DIE__} = 'DEFAULT'; + eval "require MRO::Compat; 1"; + }; + if ($loaded) { + $impl = \&mro::get_linear_isa; + } else { # VVVVV CODE TAKEN FROM MRO::COMPAT VVVVV - 'get_linear_isa' => { - loaded => \&mro::get_linear_isa, - not_loaded => do { - # this recurses so it isn't pretty - my $code; - $code = sub { - no strict 'refs'; - - my $classname = shift; - - my @lin = ($classname); - my %stored; - foreach my $parent (@{"$classname\::ISA"}) { - my $plin = $code->($parent); - foreach (@$plin) { - next if exists $stored{$_}; - push(@lin, $_); - $stored{$_} = 1; - } - } - return \@lin; + my $code; # this recurses so it isn't pretty + $code = sub { + no strict 'refs'; + + my $classname = shift; + + my @lin = ($classname); + my %stored; + foreach my $parent (@{"$classname\::ISA"}) { + my $plin = $code->($parent); + foreach (@$plin) { + next if exists $stored{$_}; + push(@lin, $_); + $stored{$_} = 1; } - }, - }, -# ^^^^^ CODE TAKEN FROM MRO::COMPAT ^^^^^ - }, -# VVVVV CODE TAKEN FROM TEST::EXCEPTION VVVVV - 'Test::Exception 0.27' => do { - - my $Tester; - - my $is_exception = sub { - my $exception = shift; - return ref $exception || $exception ne ''; - }; - - my $exception_as_string = sub { - my ( $prefix, $exception ) = @_; - return "$prefix normal exit" unless $is_exception->( $exception ); - my $class = ref $exception; - $exception = "$class ($exception)" - if $class && "$exception" !~ m/^\Q$class/; - chomp $exception; - return "$prefix $exception"; - }; - my $try_as_caller = sub { - my $coderef = shift; - eval { $coderef->() }; - $@; + } + return \@lin; }; +# ^^^^^ CODE TAKEN FROM MRO::COMPAT ^^^^^ + $impl = $code; + } + } - { - 'throws_ok' => sub (&$;$) { - my ( $coderef, $expecting, $description ) = @_; - Carp::croak "throws_ok: must pass exception class/object or regex" - unless defined $expecting; - $description = $exception_as_string->( "threw", $expecting ) - unless defined $description; - my $exception = $try_as_caller->($coderef); - - $Tester ||= Test::Builder->new; - - my $regex = $Tester->maybe_regex( $expecting ); - my $ok = $regex - ? ( $exception =~ m/$regex/ ) - : eval { - $exception->isa( ref $expecting ? ref $expecting : $expecting ) - }; - $Tester->ok( $ok, $description ); - unless ( $ok ) { - $Tester->diag( $exception_as_string->( "expecting:", $expecting ) ); - $Tester->diag( $exception_as_string->( "found:", $exception ) ); - }; - $@ = $exception; - return $ok; - }, - 'lives_ok' => sub (&;$) { - my ( $coderef, $description ) = @_; - my $exception = $try_as_caller->( $coderef ); - - $Tester ||= Test::Builder->new; - - my $ok = $Tester->ok( ! $is_exception->( $exception ), $description ); - $Tester->diag( $exception_as_string->( "died:", $exception ) ) unless $ok; - $@ = $exception; - return $ok; - }, - }, - }, - ); - - our %loaded; - - our @EXPORT_OK = map { keys %$_ } values %dependencies; - our %EXPORT_TAGS = ( - all => \@EXPORT_OK, - test => [qw/throws_ok lives_ok/], - ); + no strict 'refs'; + *{ __PACKAGE__ . '::get_linear_isa'} = $impl; +} - for my $module (keys %dependencies) { - my ($module_name, $version) = split ' ', $module; +sub apply_all_roles { + my $meta = Mouse::Meta::Class->initialize(shift); - my $loaded = do { - local $SIG{__DIE__} = 'DEFAULT'; - eval "use $module (); 1"; - }; + my @roles; - $loaded{$module_name} = $loaded; + # Basis of Data::OptList + my $max = scalar(@_); + for (my $i = 0; $i < $max ; $i++) { + if ($i + 1 < $max && ref($_[$i + 1])) { + push @roles, [ $_[$i++] => $_[$i] ]; + } else { + push @roles, [ $_[$i] => {} ]; + } + } - for my $method_name (keys %{ $dependencies{ $module_name } }) { - my $producer = $dependencies{$module_name}{$method_name}; - my $implementation; + foreach my $role_spec (@roles) { + Mouse::load_class( $role_spec->[0] ); + } - if (ref($producer) eq 'HASH') { - $implementation = $loaded - ? $producer->{loaded} - : $producer->{not_loaded}; - } - else { - $implementation = $loaded - ? $module_name->can($method_name) - : $producer; - } + ( $_->[0]->can('meta') && $_->[0]->meta->isa('Mouse::Meta::Role') ) + || croak("You can only consume roles, " + . $_->[0] + . " is not a Moose role") + foreach @roles; - no strict 'refs'; - *{ __PACKAGE__ . '::' . $method_name } = $implementation; - } + if ( scalar @roles == 1 ) { + my ( $role, $params ) = @{ $roles[0] }; + $role->meta->apply( $meta, ( defined $params ? %$params : () ) ); } + else { + Mouse::Meta::Role->combine_apply($meta, @roles); + } + } 1; @@ -239,26 +100,5 @@ Mouse::Util - features, with or without their dependencies =head3 get_linear_isa -=head2 L - -=head3 blessed - -=head3 looks_like_number - -=head3 reftype - -=head3 openhandle - -=head3 weaken - -C I be implemented in XS. If the user tries to use C -without L, an error is thrown. - -=head2 Test::Exception - -=head3 throws_ok - -=head3 lives_ok - =cut