Initial Commit

database/perl/vendor/lib/Method/Generate/DemolishAll.pm

@@ -0,0 +1,65 @@
+package Method::Generate::DemolishAll;
+
+use Moo::_strictures;
+use Moo::Object ();
+BEGIN { our @ISA = qw(Moo::Object) }
+use Sub::Quote qw(quote_sub quotify);
+use Moo::_Utils qw(_getglob);
+use Moo::_mro;
+BEGIN {
+  *_USE_DGD = "$]" < 5.014 ? sub(){1} : sub(){0};
+  require Devel::GlobalDestruction
+    if _USE_DGD();
+}
+
+sub generate_method {
+  my ($self, $into) = @_;
+  quote_sub "${into}::DEMOLISHALL", join '',
+    $self->_handle_subdemolish($into),
+    qq{    my \$self = shift;\n},
+    $self->demolishall_body_for($into, '$self', '@_'),
+    qq{    return \$self\n};
+  quote_sub "${into}::DESTROY", join '',
+    q!    my $self = shift;
+    my $e = do {
+      local $?;
+      local $@;!.(_USE_DGD ? q!
+      require Devel::GlobalDestruction;! : '').q!
+      package !.$into.q!;
+      eval {
+        $self->DEMOLISHALL(!.(
+          _USE_DGD
+            ? 'Devel::GlobalDestruction::in_global_destruction()'
+            : q[${^GLOBAL_PHASE} eq 'DESTRUCT']
+        ).q!);
+      };
+      $@;
+    };
+
+    # fatal warnings+die in DESTROY = bad times (perl rt#123398)
+    no warnings FATAL => 'all';
+    use warnings 'all';
+    die $e if $e; # rethrow
+  !;
+}
+
+sub demolishall_body_for {
+  my ($self, $into, $me, $args) = @_;
+  my @demolishers =
+    grep *{_getglob($_)}{CODE},
+    map "${_}::DEMOLISH",
+    @{mro::get_linear_isa($into)};
+  join '',
+    qq{    package $into;\n},
+    map qq{    ${me}->${_}(${args});\n}, @demolishers;
+}
+
+sub _handle_subdemolish {
+  my ($self, $into) = @_;
+  '    if (ref($_[0]) ne '.quotify($into).') {'."\n".
+  "      package $into;\n".
+  '      return shift->Moo::Object::DEMOLISHALL(@_)'.";\n".
+  '    }'."\n";
+}
+
+1;