[Moose-commits] r7323 - Class-MOP/trunk/lib/Class/MOP/Method

nothingmuch at code2.0beta.co.uk nothingmuch at code2.0beta.co.uk
Sat Jan 17 22:59:56 GMT 2009


Author: nothingmuch
Date: 2009-01-17 14:59:55 -0800 (Sat, 17 Jan 2009)
New Revision: 7323

Modified:
   Class-MOP/trunk/lib/Class/MOP/Method/Accessor.pm
   Class-MOP/trunk/lib/Class/MOP/Method/Constructor.pm
   Class-MOP/trunk/lib/Class/MOP/Method/Generated.pm
Log:
Merge method_generation_cleanup branch

Modified: Class-MOP/trunk/lib/Class/MOP/Method/Accessor.pm
===================================================================
--- Class-MOP/trunk/lib/Class/MOP/Method/Accessor.pm	2009-01-17 22:36:34 UTC (rev 7322)
+++ Class-MOP/trunk/lib/Class/MOP/Method/Accessor.pm	2009-01-17 22:59:55 UTC (rev 7323)
@@ -114,41 +114,54 @@
 
 
 sub generate_accessor_method_inline {
-    my $attr          = (shift)->associated_attribute;
+    my $self          = shift;
+    my $attr          = $self->associated_attribute;
     my $attr_name     = $attr->name;
     my $meta_instance = $attr->associated_class->instance_metaclass;
 
-    my $code = eval 'sub {'
-        . $meta_instance->inline_set_slot_value('$_[0]', "'$attr_name'", '$_[1]')  . ' if scalar(@_) == 2; '
+    my $code = $self->_eval_closure(
+        {},
+        'sub {'
+        . $meta_instance->inline_set_slot_value('$_[0]', "'$attr_name'", '$_[1]')
+        . ' if scalar(@_) == 2; '
         . $meta_instance->inline_get_slot_value('$_[0]', "'$attr_name'")
-    . '}';
+        . '}'
+    );
     confess "Could not generate inline accessor because : $@" if $@;
 
     return $code;
 }
 
 sub generate_reader_method_inline {
-    my $attr          = (shift)->associated_attribute;
+    my $self          = shift;
+    my $attr          = $self->associated_attribute;
     my $attr_name     = $attr->name;
     my $meta_instance = $attr->associated_class->instance_metaclass;
 
-    my $code = eval 'sub {'
+    my $code = $self->_eval_closure(
+         {},
+        'sub {'
         . 'confess "Cannot assign a value to a read-only accessor" if @_ > 1;'
         . $meta_instance->inline_get_slot_value('$_[0]', "'$attr_name'")
-    . '}';
+        . '}'
+    );
     confess "Could not generate inline accessor because : $@" if $@;
 
     return $code;
 }
 
 sub generate_writer_method_inline {
-    my $attr          = (shift)->associated_attribute;
+    my $self          = shift;
+    my $attr          = $self->associated_attribute;
     my $attr_name     = $attr->name;
     my $meta_instance = $attr->associated_class->instance_metaclass;
 
-    my $code = eval 'sub {'
+    my $code = $self->_eval_closure(
+        {},
+        'sub {'
         . $meta_instance->inline_set_slot_value('$_[0]', "'$attr_name'", '$_[1]')
-    . '}';
+        . '}'
+    );
     confess "Could not generate inline accessor because : $@" if $@;
 
     return $code;
@@ -156,26 +169,34 @@
 
 
 sub generate_predicate_method_inline {
-    my $attr          = (shift)->associated_attribute;
+    my $self          = shift;
+    my $attr          = $self->associated_attribute;
     my $attr_name     = $attr->name;
     my $meta_instance = $attr->associated_class->instance_metaclass;
 
-    my $code = eval 'sub {' .
-       $meta_instance->inline_is_slot_initialized('$_[0]', "'$attr_name'")
-    . '}';
+    my $code = $self->_eval_closure(
+        {},
+       'sub {'
+       . $meta_instance->inline_is_slot_initialized('$_[0]', "'$attr_name'")
+       . '}'
+    );
     confess "Could not generate inline predicate because : $@" if $@;
 
     return $code;
 }
 
 sub generate_clearer_method_inline {
-    my $attr          = (shift)->associated_attribute;
+    my $self          = shift;
+    my $attr          = $self->associated_attribute;
     my $attr_name     = $attr->name;
     my $meta_instance = $attr->associated_class->instance_metaclass;
 
-    my $code = eval 'sub {'
+    my $code = $self->_eval_closure(
+        {},
+        'sub {'
         . $meta_instance->inline_deinitialize_slot('$_[0]', "'$attr_name'")
-    . '}';
+        . '}'
+    );
     confess "Could not generate inline clearer because : $@" if $@;
 
     return $code;

Modified: Class-MOP/trunk/lib/Class/MOP/Method/Constructor.pm
===================================================================
--- Class-MOP/trunk/lib/Class/MOP/Method/Constructor.pm	2009-01-17 22:36:34 UTC (rev 7322)
+++ Class-MOP/trunk/lib/Class/MOP/Method/Constructor.pm	2009-01-17 22:59:55 UTC (rev 7323)
@@ -89,6 +89,8 @@
 sub generate_constructor_method_inline {
     my $self = shift;
 
+    my $close_over = {};
+
     my $source = 'sub {';
     $source .= "\n" . 'my $class = shift;';
 
@@ -99,7 +101,7 @@
 
     $source .= "\n" . 'my $instance = ' . $self->meta_instance->inline_create_instance('$class');
     $source .= ";\n" . (join ";\n" => map {
-        $self->_generate_slot_initializer($_)
+        $self->_generate_slot_initializer($_, $close_over)
     } 0 .. (@{$self->attributes} - 1));
     $source .= ";\n" . 'return $instance';
     $source .= ";\n" . '}';
@@ -110,9 +112,11 @@
         # NOTE:
         # create the nessecary lexicals
         # to be picked up in the eval
-        my $attrs = $self->attributes;
 
-        $code = eval $source;
+        $code = $self->_eval_closure(
+            $close_over,
+            $source
+        );
         confess "Could not eval the constructor :\n\n$source\n\nbecause :\n\n$@" if $@;
     }
     return $code;
@@ -121,6 +125,7 @@
 sub _generate_slot_initializer {
     my $self  = shift;
     my $index = shift;
+    my $close = shift;
 
     my $attr = $self->attributes->[$index];
 
@@ -133,7 +138,9 @@
         # in which case we can just deal with them
         # in the code we eval.
         if ($attr->is_default_a_coderef) {
-            $default = '$attrs->[' . $index . ']->default($instance)';
+            my $idx = @{$close->{'@defaults'}||=[]};
+            push(@{$close->{'@defaults'}}, $attr->default);
+            $default = '$defaults[' . $idx . ']->($instance)';
         }
         else {
             $default = $attr->default;

Modified: Class-MOP/trunk/lib/Class/MOP/Method/Generated.pm
===================================================================
--- Class-MOP/trunk/lib/Class/MOP/Method/Generated.pm	2009-01-17 22:36:34 UTC (rev 7322)
+++ Class-MOP/trunk/lib/Class/MOP/Method/Generated.pm	2009-01-17 22:59:55 UTC (rev 7323)
@@ -26,8 +26,41 @@
     return $self;
 }
 
+sub _new {
+    my $class = shift;
+    my $options = @_ == 1 ? $_[0] : {@_};
 
-sub _prepare_code {
+    $options->{is_inline} ||= 0;
+    $options->{body} ||= undef;
+
+    bless $options, $class;
+}
+
+## accessors
+
+sub is_inline { $_[0]{is_inline} }
+
+sub definition_context { $_[0]{definition_context} }
+
+sub initialize_body {
+    confess "No body to initialize, " . __PACKAGE__ . " is an abstract base class";
+}
+
+sub _eval_closure {
+    # my ($self, $captures, $sub_body) = @_;
+    my $__captures = $_[1];
+    eval join(
+        "\n",
+        (map {
+            /^([\@\%\$])/
+                or die "capture key should start with \@, \% or \$: $_";
+            q!my !.$_.q! = !.$1.q!{$__captures->{'!.$_.q!'}};!;
+        } keys %$__captures),
+        $_[2]
+    );
+}
+
+sub _add_line_directive {
     my ( $self, %args ) = @_;
 
     my ( $line, $file );
@@ -52,27 +85,14 @@
     return qq{#line $line "$file"\n} . $code;
 }
 
-sub _new {
-    my $class = shift;
-    my $options = @_ == 1 ? $_[0] : {@_};
+sub _compile_code {
+    my ( $self, %args ) = @_;
 
-    $options->{is_inline} ||= 0;
-    $options->{body} ||= undef;
+    my $code = $self->_add_line_directive(%args);
 
-    bless $options, $class;
+    $self->_eval_closure($args{environment}, $code);
 }
 
-## accessors
-
-sub is_inline { $_[0]{is_inline} }
-
-sub definition_context { $_[0]{definition_context} }
-
-sub initialize_body {
-    confess "No body to initialize, " . __PACKAGE__ . " is an abstract base class";
-}
-
-
 1;
 
 __END__




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