package # hide from PAUSE
DBIx::Class::_Util;
+use DBIx::Class::StartupCheck; # load es early as we can, usually a noop
+
use warnings;
use strict;
use constant SPURIOUS_VERSION_CHECK_WARNINGS => ( "$]" < 5.010 ? 1 : 0);
+my $mro_recursor_stack;
+
BEGIN {
package # hide from pause
DBIx::Class::_ENV_;
if ( "$]" < 5.009_005) {
require MRO::Compat;
constant->import( OLD_MRO => 1 );
+
+ #
+ # Yes, I know this is a rather PHP-ish name, but please first read
+ # https://metacpan.org/source/BOBTFISH/MRO-Compat-0.12/lib/MRO/Compat.pm#L363-368
+ #
+ # Even if we are using Class::C3::XS it still won't work, as doing
+ # defined( *{ "SubClass::"->{$_} }{CODE} )
+ # will set pkg_gen to the same value for SubClass and *ALL PARENTS*
+ #
+ *DBIx::Class::_Util::get_real_pkg_gen = sub ($) {
+ require Digest::MD5;
+ require Math::BigInt;
+
+ # the non-assign-unless-there-is-a-hash is deliberate
+ ( $mro_recursor_stack->{cache} || {} )->{$_[0]}{gen} ||= (
+ Math::BigInt->new( '0x' . ( Digest::MD5::md5_hex( join "\0", map {
+
+ ( $mro_recursor_stack->{cache} || {} )->{$_}{methlist} ||= do {
+
+ my $class = $_;
+
+ no strict 'refs';
+ my %methlist =
+ map
+ # this is essentially a uniq_by step
+ # it is crucial on OLD_MRO
+ {( Scalar::Util::refaddr($_) => $_ )}
+ map
+ {
+ (
+ ref(\ "${class}::"->{$_} ) ne 'GLOB'
+ or
+ defined( *{ "${class}::"->{$_} }{CODE} )
+ )
+ ? ( \&{"${class}::$_"} )
+ : ()
+ }
+ keys %{ "${class}::" }
+ ;
+
+ # RV to be hashed up and turned into a number
+ join "\0", (
+ $class,
+ map {(
+ $_, # refaddr is sufficient, ignore names entirely
+ attributes::get( $methlist{$_} )
+ )} sort keys %methlist
+ ),
+ }
+ } ( 'UNIVERSAL', @{
+ ( $mro_recursor_stack->{cache} || {} )->{$_[0]}{linear_isa}
+ ||=
+ mro::get_linear_isa($_[0])
+ } ) ) ) )
+ );
+ };
}
else {
require mro;
constant->import( OLD_MRO => 0 );
+ *DBIx::Class::_Util::get_real_pkg_gen = \&mro::get_pkg_gen;
}
# Both of these are no longer used for anything. However bring
use Carp 'croak';
use Storable 'nfreeze';
use Scalar::Util qw(weaken blessed reftype refaddr);
-use Sub::Quote qw(qsub quote_sub);
+use Sub::Quote qw(qsub);
+use Sub::Name ();
+use attributes ();
# Already correctly prototyped: perlbrew exec perl -MStorable -e 'warn prototype \&Storable::dclone'
BEGIN { *deep_clone = \&Storable::dclone }
our @EXPORT_OK = qw(
sigwarn_silencer modver_gt_or_eq modver_gt_or_eq_and_lt
fail_on_internal_wantarray fail_on_internal_call
- refdesc refcount hrefaddr
+ refdesc refcount hrefaddr set_subname describe_class_methods
scope_guard detected_reinvoked_destructor
- is_exception dbic_internal_try
- quote_sub qsub perlstring serialize deep_clone dump_value
+ is_exception dbic_internal_try visit_namespaces
+ quote_sub qsub perlstring serialize deep_clone dump_value uniq
parent_dir mkdir_p
UNRESOLVABLE_CONDITION
);
use constant UNRESOLVABLE_CONDITION => \ '1 = 0';
+BEGIN {
+ # add preliminary attribute support
+ # FIXME FIXME FIXME
+ # To be revisited when Moo with proper attr support ships
+ Sub::Quote->VERSION(2.002);
+}
+# Override forcing no_defer, and adding naming consistency checks
+sub quote_sub {
+ Carp::confess( "Anonymous quoting not supported by the DBIC sub_quote override - supply a sub name" ) if
+ @_ < 2
+ or
+ ! defined $_[1]
+ or
+ length ref $_[1]
+ ;
+
+ Carp::confess( "The DBIC sub_quote override expects sub name '$_[0]' to be fully qualified" )
+ unless $_[0] =~ /::/;
+
+ Carp::confess( "The DBIC sub_quote override expects the sub name '$_[0]' to match the supplied 'package' argument" ) if
+ $_[3]
+ and
+ defined $_[3]->{package}
+ and
+ index( $_[0], $_[3]->{package} ) != 0
+ ;
+
+ my @caller = caller(0);
+ my $sq_opts = {
+ package => $caller[0],
+ hints => $caller[8],
+ warning_bits => $caller[9],
+ hintshash => $caller[10],
+ %{ $_[3] || {} },
+
+ # explicitly forced for everything
+ no_defer => 1,
+ };
+
+ my $cref = Sub::Quote::quote_sub( $_[0], $_[1], $_[2]||{}, $sq_opts );
+
+ # FIXME FIXME FIXME
+ # To be revisited when Moo with proper attr support ships
+ if(
+ # external application does not work on things like :prototype(...), :lvalue, etc
+ my @attrs = grep {
+ $_ !~ /^[a-z]/
+ or
+ Carp::confess( "The DBIC sub_quote override does not support applying of reserved attribute '$_'" )
+ } @{ $sq_opts->{attributes} || []}
+ ) {
+ Carp::confess( "The DBIC sub_quote override does not allow mixing 'attributes' with 'no_install'" )
+ if $sq_opts->{no_install};
+
+ # might be different from $sq_opts->{package};
+ my ($install_into) = $_[0] =~ /(.+)::[^:]+$/;
+
+ attributes->import( $install_into, $cref, @attrs );
+ }
+
+ $cref;
+}
+
sub sigwarn_silencer ($) {
my $pattern = shift;
B::svref_2object($_[0])->REFCNT;
}
+sub visit_namespaces {
+ my $args = { (ref $_[0]) ? %{$_[0]} : @_ };
+
+ my $visited_count = 1;
+
+ # A package and a namespace are subtly different things
+ $args->{package} ||= 'main';
+ $args->{package} = 'main' if $args->{package} =~ /^ :: (?: main )? $/x;
+ $args->{package} =~ s/^:://;
+
+ if ( $args->{action}->($args->{package}) ) {
+ my $ns =
+ ( ($args->{package} eq 'main') ? '' : $args->{package} )
+ .
+ '::'
+ ;
+
+ $visited_count += visit_namespaces( %$args, package => $_ ) for
+ grep
+ # this happens sometimes on %:: traversal
+ { $_ ne '::main' }
+ map
+ { $_ =~ /^(.+?)::$/ ? "$ns$1" : () }
+ do { no strict 'refs'; keys %$ns }
+ ;
+ }
+
+ $visited_count;
+}
+
+# FIXME In another life switch this to a polyfill like the one in namespace::clean
+sub set_subname ($$) {
+
+ # fully qualify name
+ splice @_, 0, 1, caller(0) . "::$_[0]"
+ if $_[0] !~ /::|'/;
+
+ &Sub::Name::subname;
+}
+
sub serialize ($) {
local $Storable::canonical = 1;
nfreeze($_[0]);
}
+sub uniq {
+ my( %seen, $seen_undef, $numeric_preserving_copy );
+ grep { not (
+ defined $_
+ ? $seen{ $numeric_preserving_copy = $_ }++
+ : $seen_undef++
+ ) } @_;
+}
+
my $dd_obj;
sub dump_value ($) {
local $Data::Dumper::Indent = 1
{
my $destruction_registry = {};
- sub CLONE {
+ sub DBIx::Class::__Util_iThreads_handler__::CLONE {
%$destruction_registry = map {
(defined $_)
? ( refaddr($_) => $_ )
) ? 1 : 0;
}
+{
+ # FIXME - should be a private my(), but I'm too uncertain whether
+ # all bases are covered
+ our $describe_class_query_cache;
+
+ sub describe_class_methods {
+ my ($class) = @_;
+
+ croak "Expecting a class name"
+ if not defined $class or $class !~ $module_name_rx;
+
+ # use a cache on old MRO, since while we are recursing in this function
+ # nothing can possibly change (the speedup is immense)
+ # (yes, people could be tie()ing the stash and adding methods on access
+ # but there is a limit to how much crazy can be supported here)
+ #
+ # we use the cache for linear_isa lookups on new MRO as well - it adds
+ # a *tiny* speedup, and simplifies the code a lot
+ #
+ local $mro_recursor_stack->{cache} = {}
+ unless $mro_recursor_stack->{cache};
+
+ my $my_gen = 0;
+
+ $my_gen += get_real_pkg_gen($_) for (
+ 'UNIVERSAL',
+ ( $class, my @my_ISA ) = @{
+ $mro_recursor_stack->{cache}{$class}{linear_isa}
+ ||=
+ mro::get_linear_isa($class)
+ }
+ );
+
+ my $slot = $describe_class_query_cache->{$class} ||= {};
+
+ unless ( ($slot->{cumulative_gen}||0) == $my_gen ) {
+
+ # reset
+ %$slot = (
+ class => $class,
+ isa => [ @my_ISA ], # copy before we shove UNIVERSAL into it
+ mro => {
+ type => mro::get_mro($class),
+ },
+ cumulative_gen => $my_gen,
+ );
+ $slot->{mro}{is_c3} = ($slot->{mro}{type} eq 'c3') ? 1 : 0;
+
+ push @my_ISA, 'UNIVERSAL';
+
+ # ensure the cache is populated for the parents, code below can then
+ # efficiently operate over the query_cache directly
+ describe_class_methods($_) for reverse @my_ISA;
+
+ my ($methods_seen_via_ISA_on_old_mro, $current_node_refaddr);
+ no strict 'refs';
+
+ # combine full ISA-order inherited and local method list into a
+ # "shadowing stack"
+
+ (
+ $current_node_refaddr = refaddr($_)
+
+ and
+
+ # on complex MI herarchies the method can be anywhere in the
+ # shadow stack - look through the entire slot, not just [0]
+ ( ! grep {
+ refaddr($_) == $current_node_refaddr
+ } @{ $slot->{methods}{ $_->{name} } || [] } )
+
+ and
+
+ unshift @{ $slot->{methods}{$_->{name}} }, $_
+
+ and
+
+ @{ $slot->{methods}{$_->{name}} } > 1
+
+ and
+
+ $slot->{methods_with_supers}{$_->{name}} = $slot->{methods}{$_->{name}}
+
+ ) for (
+
+ # what describe_class_methods for @my_ISA produced above
+ ( map { $_->[0] } map {
+ values %{ $describe_class_query_cache->{$_}{methods} }
+ } reverse @my_ISA ),
+
+ # our own non-cleaned subs + their attributes
+ ( map {
+ (
+ # these 2 OR-ed checks are sufficient for 5.10+
+ (
+ ref(\ "${class}::"->{$_} ) ne 'GLOB'
+ or
+ defined( *{ "${class}::"->{$_} }{CODE} )
+ )
+ and
+ # need to account for dummy helper crefs under OLD_MRO
+ (
+ ! DBIx::Class::_ENV_::OLD_MRO
+ or
+ (
+ $methods_seen_via_ISA_on_old_mro ||= do {
+ my $rv = {};
+ $rv->{$_->{name}}->{ refaddr( \&{ "$_->{via_class}::$_->{name}"} ) } = 1 for
+ map { @$_ } map
+ { values %{ $describe_class_query_cache->{$_}{methods} } }
+ @my_ISA;
+ $rv;
+ }
+ and
+ (
+ ! $methods_seen_via_ISA_on_old_mro->{$_}
+ or
+ ! $methods_seen_via_ISA_on_old_mro->{$_}{ refaddr( \&{"${class}::${_}"} ) }
+ )
+ )
+ )
+ ) ? {
+ via_class => $class,
+ name => $_,
+ attributes => {
+ map { $_ => 1 } attributes::get( \&{"${class}::${_}"} )
+ },
+ }
+ : ()
+ } keys %{"${class}::"} )
+ );
+
+
+ # recalculate the pkg_gen on newer perls under Taint mode,
+ # because of shit like:
+ # perl -T -Mmro -e 'package Foo; sub bar {}; defined( *{ "Foo::"->{bar}}{CODE} ) and warn mro::get_pkg_gen("Foo") for (1,2,3)'
+ #
+ if (
+ ! DBIx::Class::_ENV_::OLD_MRO
+ and
+ ${^TAINT}
+ ) {
+
+ $slot->{cumulative_gen} = 0;
+ $slot->{cumulative_gen} += get_real_pkg_gen($_)
+ for $class, @my_ISA;
+ }
+ }
+
+ # RV
+ +{ %$slot };
+ }
+}
+
#
# Why not just use some higher-level module or at least File::Spec here?
$fr = [ CORE::caller(1) ];
$argdesc = ref $DB::args[0]
? DBIx::Class::_Util::refdesc($DB::args[0])
- : undef
+ : ( $DB::args[0] . '' )
;
};
+ my @fr2;
+ # need to make allowance for a proxy-yet-direct call
+ my $check_fr = (
+ $fr->[0] eq 'DBIx::Class::ResultSourceProxy'
+ and
+ @fr2 = (CORE::caller(2))
+ and
+ (
+ ( $fr->[3] =~ /([^:])+$/ )[0]
+ eq
+ ( $fr2[3] =~ /([^:])+$/ )[0]
+ )
+ )
+ ? \@fr2
+ : $fr
+ ;
+
if (
$argdesc
and
- $fr->[0] =~ /^(?:DBIx::Class|DBICx::)/
+ $check_fr->[0] =~ /^(?:DBIx::Class|DBICx::)/
and
- $fr->[1] !~ /\b(?:CDBICompat|ResultSetProxy)\b/ # no point touching there
+ $check_fr->[1] !~ /\b(?:CDBICompat|ResultSetProxy)\b/ # no point touching there
) {
DBIx::Class::Exception->throw( sprintf (
- "Illegal internal call of indirect proxy-method %s() with argument %s: examine the last lines of the proxy method deparse below to determine what to call directly instead at %s on line %d\n\n%s\n\n Stacktrace starts",
+ "Illegal internal call of indirect proxy-method %s() with argument '%s': examine the last lines of the proxy method deparse below to determine what to call directly instead at %s on line %d\n\n%s\n\n Stacktrace starts",
$fr->[3], $argdesc, @{$fr}[1,2], ( $fr->[6] || do {
require B::Deparse;
no strict 'refs';
projects / dbsrgits/DBIx-Class.git / blobdiff