added Meta::Class->add_attribute_list for Moose compatibility

[gitmo/Mouse.git] / lib / Mouse / Meta / Attribute.pm

diff --git a/lib/Mouse/Meta/Attribute.pm b/lib/Mouse/Meta/Attribute.pm
index 9675ac3..a6fcee4 100644 (file)
--- a/lib/Mouse/Meta/Attribute.pm
+++ b/lib/Mouse/Meta/Attribute.pm
@@ -73,23 +73,31 @@ sub generate_accessor {
     my $self  = '$_[0]';
     my $key   = $attribute->inlined_name;
 
-    my $accessor = "sub {\n";
+    my $accessor = 
+        '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
+        "sub {\n";
     if ($attribute->_is_metadata eq 'rw') {
-        $accessor .= 'if (@_ >= 2) {' . "\n";
+        $accessor .= 
+            '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
+            'if (@_ >= 2) {' . "\n";
 
         my $value = '$_[1]';
 
         if ($constraint) {
             $accessor .= 'my $val = ';
             if ($should_coerce) {
-                $accessor  .= 'Mouse::Util::TypeConstraints->typecast_constraints("'.$attribute->associated_class->name.'", $attribute->{find_type_constraint}, $attribute->{type_constraint}, '.$value.');';
+                $accessor .=
+                    "\n".
+                    '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
+                    'Mouse::Util::TypeConstraints->typecast_constraints("'.$attribute->associated_class->name.'", $attribute->{find_type_constraint}, $attribute->{type_constraint}, '.$value.');';
             } else {
                 $accessor .= $value.';';
             }
-            $accessor .= 'local $_ = $val;';
-            $accessor .= '
-                unless ($constraint->()) {
-                    $attribute->verify_type_constraint_error($name, $_, $attribute->type_constraint);
+            $accessor .= 
+                "\n".
+                '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
+                'unless ($constraint->($val)) {
+                    $attribute->verify_type_constraint_error($name, $val, $attribute->type_constraint);
                 }' . "\n";
             $value = '$val';
         }
@@ -105,7 +113,7 @@ sub generate_accessor {
         }
 
         if ($trigger) {
-            $accessor .= '$trigger->('.$self.', '.$value.', $attribute);' . "\n";
+            $accessor .= '$trigger->('.$self.', '.$value.');' . "\n";
         }
 
         $accessor .= "}\n";
@@ -114,13 +122,7 @@ sub generate_accessor {
         $accessor .= 'confess "Cannot assign a value to a read-only accessor" if scalar(@_) >= 2;' . "\n";
     }
 
-    # XXX - edit by lestrrat 20090304:
-    # I couldn't quite tell why this happened, but I encountered a case
-    # where the default value was not set. In introspecting the resulting
-    # $accessor string, I realized that there was no default handling code.
-    # which led me to adding "|| $attribute->has_default" below.
-    # Tests passed, so I hope everything will be ok
-    if ($attribute->is_lazy || $attribute->has_default) {
+    if ($attribute->is_lazy) {
         $accessor .= $self.'->{'.$key.'} = ';
 
         $accessor .= $attribute->has_builder
@@ -210,33 +212,20 @@ sub create {
         if exists $args{coerce};
 
     if (exists $args{isa}) {
-        confess "Mouse does not yet support parameterized types (rt.cpan.org #39795)"
-            if $args{isa} =~ /\[.*\]/;
+        confess "Got isa => $args{isa}, but Mouse does not yet support parameterized types for containers other than ArrayRef and HashRef (rt.cpan.org #39795)"
+            if $args{isa} =~ /^([^\[]+)\[.+\]$/ &&
+               $1 ne 'ArrayRef' &&
+               $1 ne 'HashRef'  &&
+               $1 ne 'Maybe'
+        ;
 
         my $type_constraint = delete $args{isa};
-        $type_constraint =~ s/\s//g;
-        my @type_constraints = split /\|/, $type_constraint;
-
-        my $code;
-        my $optimized_constraints = Mouse::Util::TypeConstraints->optimized_constraints;
-        if (@type_constraints == 1) {
-            $code = $optimized_constraints->{$type_constraints[0]} ||
-                sub { Scalar::Util::blessed($_) && $_->isa($type_constraints[0]) };
-            $args{type_constraint} = $type_constraints[0];
-        } else {
-            my @code_list = map {
-                my $type = $_;
-                $optimized_constraints->{$type} ||
-                    sub { Scalar::Util::blessed($_) && $_->isa($type) }
-            } @type_constraints;
-            $code = sub {
-                for my $code (@code_list) {
-                    return 1 if $code->();
-                }
-                return 0;
-            };
-            $args{type_constraint} = \@type_constraints;
-        }
+        $type_constraint =~ s/\s+//g;
+        my $code = Mouse::Util::TypeConstraints::find_or_create_isa_type_constraint($type_constraint);
+        $args{type_constraint} = $type_constraint =~ /\|/ ?
+            [ split (/\|/, $type_constraint ) ] :
+            $type_constraint
+        ;
         $args{find_type_constraint} = $code;
     }
 
@@ -344,7 +333,7 @@ sub verify_against_type_constraint {
 sub verify_type_constraint_error {
     my($self, $name, $value, $type) = @_;
     $type = ref($type) eq 'ARRAY' ? join '|', @{ $type } : $type;
-    my $display = defined($_) ? overload::StrVal($_) : 'undef';
+    my $display = defined($value) ? overload::StrVal($value) : 'undef';
     Carp::confess("Attribute ($name) does not pass the type constraint because: Validation failed for \'$type\' failed with value $display");
 }