From: Daisuke Maki Date: Wed, 3 Dec 2008 08:22:02 +0000 (+0000) Subject: change location X-Git-Tag: 0.19~136^2~52 X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=64959bc911422335c41bea9cadc584f33d6ba705;p=gitmo%2FMouse.git change location --- diff --git a/lib/Mouse/Util.pm b/lib/Mouse/Util.pm index e080bf4..77cbb2a 100644 --- a/lib/Mouse/Util.pm +++ b/lib/Mouse/Util.pm @@ -21,7 +21,150 @@ our %EXPORT_TAGS = ( # Mouse.pm, so check if we're running under PurePerl or not BEGIN { if ($Mouse::PurePerl) { - _install_pp_func(); + my %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; + + # 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' => { + # 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; + } + }, + }, + # ^^^^^ CODE TAKEN FROM MRO::COMPAT ^^^^^ + }, + ); + + my %loaded; + for my $module_name (keys %dependencies) { + my $loaded = do { + local $SIG{__DIE__} = 'DEFAULT'; + eval "require $module_name; 1"; + }; + + $loaded{$module_name} = $loaded; + + for my $method_name (keys %{ $dependencies{ $module_name } }) { + my $producer = $dependencies{$module_name}{$method_name}; + my $implementation; + + if (ref($producer) eq 'HASH') { + $implementation = $loaded + ? $producer->{loaded} + : $producer->{not_loaded}; + } + else { + $implementation = $loaded + ? $module_name->can($method_name) + : $producer; + } + + no strict 'refs'; + *{ __PACKAGE__ . '::' . $method_name } = $implementation; + } + } } else { # If we're running under XS, we can provide # blessed @@ -79,153 +222,6 @@ BEGIN { } } -sub _install_pp_func { - my %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; - - # 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' => { -# 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; - } - }, - }, -# ^^^^^ CODE TAKEN FROM MRO::COMPAT ^^^^^ - }, - ); - - my %loaded; - for my $module_name (keys %dependencies) { - my $loaded = do { - local $SIG{__DIE__} = 'DEFAULT'; - eval "require $module_name; 1"; - }; - - $loaded{$module_name} = $loaded; - - for my $method_name (keys %{ $dependencies{ $module_name } }) { - my $producer = $dependencies{$module_name}{$method_name}; - my $implementation; - - if (ref($producer) eq 'HASH') { - $implementation = $loaded - ? $producer->{loaded} - : $producer->{not_loaded}; - } - else { - $implementation = $loaded - ? $module_name->can($method_name) - : $producer; - } - - no strict 'refs'; - *{ __PACKAGE__ . '::' . $method_name } = $implementation; - } - } -} - sub apply_all_roles { my $meta = Mouse::Meta::Class->initialize(shift); my $role = shift;