Add Mouse::Util::quoted_english_list()

[gitmo/Mouse.git] / lib / Mouse / Util.pm

diff --git a/lib/Mouse/Util.pm b/lib/Mouse/Util.pm
index 44d6759..3ffa375 100644 (file)
--- a/lib/Mouse/Util.pm
+++ b/lib/Mouse/Util.pm
@@ -38,7 +38,7 @@ BEGIN{
     # Because Mouse::Util is loaded first in all the Mouse sub-modules,
     # XS loader is placed here, not in Mouse.pm.
 
-    our $VERSION = '0.41';
+    our $VERSION = '0.49';
 
     my $xs = !(exists $INC{'Mouse/PurePerl.pm'} || $ENV{MOUSE_PUREPERL});
 
@@ -54,7 +54,7 @@ BEGIN{
             Mouse::Util->import({ into => 'Mouse::Meta::Method::Destructor::XS'  }, ':meta');
             Mouse::Util->import({ into => 'Mouse::Meta::Method::Accessor::XS'    }, ':meta');
             return 1;
-        };
+        } || 0;
         #warn $@ if $@;
     }
 
@@ -81,9 +81,14 @@ BEGIN {
     *get_all_metaclass_names     = \&Mouse::Meta::Module::_get_all_metaclass_names;
 
     # is-a predicates
-    generate_isa_predicate_for('Mouse::Meta::TypeConstraint' => 'is_a_type_constraint');
-    generate_isa_predicate_for('Mouse::Meta::Class'          => 'is_a_metaclass');
-    generate_isa_predicate_for('Mouse::Meta::Role'           => 'is_a_metarole');
+    #generate_isa_predicate_for('Mouse::Meta::TypeConstraint' => 'is_a_type_constraint');
+    #generate_isa_predicate_for('Mouse::Meta::Class'          => 'is_a_metaclass');
+    #generate_isa_predicate_for('Mouse::Meta::Role'           => 'is_a_metarole');
+
+    # duck type predicates
+    generate_can_predicate_for(['_compiled_type_constraint']  => 'is_a_type_constraint');
+    generate_can_predicate_for(['create_anon_class']          => 'is_a_metaclass');
+    generate_can_predicate_for(['create_anon_role']           => 'is_a_metarole');
 }
 
 our $in_global_destruction = 0;
@@ -148,7 +153,7 @@ BEGIN {
             }
             return $type eq 'c3'
                 ? [calculateMRO($classname)]
-                : $_get_linear_isa_dfs->($classname);\r
+                : $_get_linear_isa_dfs->($classname);
         };
     }
 
@@ -261,7 +266,7 @@ sub load_class {
 sub is_class_loaded;
 
 sub apply_all_roles {
-    my $applicant = Scalar::Util::blessed($_[0])
+    my $consumer = Scalar::Util::blessed($_[0])
         ?                                shift   # instance
         : Mouse::Meta::Class->initialize(shift); # class or role name
 
@@ -279,15 +284,15 @@ sub apply_all_roles {
         load_class($role_name);
 
         is_a_metarole( get_metaclass_by_name($role_name) )
-            || $applicant->meta->throw_error("You can only consume roles, $role_name is not a Mouse role");
+            || $consumer->meta->throw_error("You can only consume roles, $role_name is not a Mouse role");
     }
 
     if ( scalar @roles == 1 ) {
         my ( $role_name, $params ) = @{ $roles[0] };
-        get_metaclass_by_name($role_name)->apply( $applicant, defined $params ? $params : () );
+        get_metaclass_by_name($role_name)->apply( $consumer, defined $params ? $params : () );
     }
     else {
-        Mouse::Meta::Role->combine(@roles)->apply($applicant);
+        Mouse::Meta::Role->combine(@roles)->apply($consumer);
     }
     return;
 }
@@ -305,6 +310,18 @@ sub english_list {
     return join q{, }, @items, "and $tail";
 }
 
+sub quoted_english_list {
+    return qq{'$_[0]'} if @_ == 1;
+
+    my @items = sort @_;
+
+    return qq{'$items[0]' and '$items[1]'} if @items == 2;
+
+    my $tail = pop @items;
+
+    return join q{, }, (map{ qq{'$_'} } @items), qq{and '$tail'};
+}
+
 # common utilities
 
 sub not_supported{
@@ -345,7 +362,7 @@ Mouse::Util - Features, with or without their dependencies
 
 =head1 VERSION
 
-This document describes Mouse version 0.41
+This document describes Mouse version 0.49
 
 =head1 IMPLEMENTATIONS FOR