add _get_linear_isa and _in_global_destruction

[gitmo/Role-Tiny.git] / lib / Moo / _Utils.pm

diff --git a/lib/Moo/_Utils.pm b/lib/Moo/_Utils.pm
index 6bf8f22..6b1a5b3 100644 (file)
--- a/lib/Moo/_Utils.pm
+++ b/lib/Moo/_Utils.pm
@@ -1,11 +1,23 @@
 package Moo::_Utils;
 
+sub _getglob { \*{$_[0]} }
+sub _getstash { \%{"$_[0]::"} }
+
+BEGIN {
+  *lt_5_8_3 = $] < 5.008003
+    ? sub () { 1 }
+    : sub () { 0 }
+  ;
+}
+
 use strictures 1;
 use base qw(Exporter);
+use Moo::_mro;
 
-our @EXPORT = qw(_getglob _install_modifier _load_module _maybe_load_module);
-
-sub _getglob { no strict 'refs'; \*{$_[0]} }
+our @EXPORT = qw(
+    _getglob _install_modifier _load_module _maybe_load_module
+    _get_linear_isa
+);
 
 sub _install_modifier {
   my ($into, $type, $name, $code) = @_;
@@ -20,9 +32,14 @@ sub _install_modifier {
 
 our %MAYBE_LOADED;
 
+# _load_module is inlined in Role::Tiny - make sure to copy if you update it.
+
 sub _load_module {
-  return 1 if $_[0]->can('can');
   (my $proto = $_[0]) =~ s/::/\//g;
+  return 1 if $INC{"${proto}.pm"};
+  # can't just ->can('can') because a sub-package Foo::Bar::Baz
+  # creates a 'Baz::' key in Foo::Bar's symbol table
+  return 1 if grep !/::$/, keys %{_getstash($_[0])||{}};
   require "${proto}.pm";
   return 1;
 }
@@ -41,4 +58,11 @@ sub _maybe_load_module {
   return $MAYBE_LOADED{$_[0]};
 }
 
+sub _get_linear_isa {
+    return mro::get_linear_isa($_[0]);
+}
+
+our $_in_global_destruction = 0;
+END { $_in_global_destruction = 1 }
+
 1;