From: Shawn M Moore <sartak@gmail.com>
Date: Thu, 11 Sep 2008 08:09:35 +0000 (+0000)
Subject: Remove before/around triggers
X-Git-Tag: 0.19~223
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=gitmo%2FMouse.git;a=commitdiff_plain;h=a08e715f7c381c665e5974976e56ebae491f7eda

Remove before/around triggers
---

diff --git a/lib/Mouse/Meta/Attribute.pm b/lib/Mouse/Meta/Attribute.pm
index 230efb5..368e10d 100644
--- a/lib/Mouse/Meta/Attribute.pm
+++ b/lib/Mouse/Meta/Attribute.pm
@@ -59,11 +59,7 @@ sub generate_accessor {
     my $type       = $attribute->type_constraint;
     my $constraint = $attribute->find_type_constraint;
     my $builder    = $attribute->builder;
-
-    my $trigger = $attribute->trigger;
-    my $before  = $trigger->{before};
-    my $after   = $trigger->{after};
-    my $around  = $trigger->{around};
+    my $trigger    = $attribute->trigger;
 
     my $accessor = 'sub {
         my $self = shift;';
@@ -72,36 +68,21 @@ sub generate_accessor {
         $accessor .= 'if (@_) {
             local $_ = $_[0];';
 
-        if ($before) {
-            $accessor .= '$before->($self, $_, $attribute);';
-        }
-
-        if ($around) {
-            $accessor .= '$around->(sub {
-                my $self = shift;
-                $_ = $_[0];
-            ';
+        if ($constraint) {
+            $accessor .= 'unless ($constraint->()) {
+                    my $display = defined($_) ? overload::StrVal($_) : "undef";
+                    Carp::confess("Attribute ($name) does not pass the type constraint because: Validation failed for \'$type\' failed with value $display");
+            }'
         }
 
-            if ($constraint) {
-                $accessor .= 'unless ($constraint->()) {
-                        my $display = defined($_) ? overload::StrVal($_) : "undef";
-                        Carp::confess("Attribute ($name) does not pass the type constraint because: Validation failed for \'$type\' failed with value $display");
-                }'
-            }
+        $accessor .= '$self->{$key} = $_;';
 
-            $accessor .= '$self->{$key} = $_;';
-
-            if ($attribute->is_weak_ref) {
-                $accessor .= 'Scalar::Util::weaken($self->{$key}) if ref($self->{$key});';
-            }
-
-        if ($around) {
-            $accessor .= '}, $self, $_, $attribute);';
+        if ($attribute->is_weak_ref) {
+            $accessor .= 'Scalar::Util::weaken($self->{$key}) if ref($self->{$key});';
         }
 
-        if ($after) {
-            $accessor .= '$after->($self, $_, $attribute);';
+        if ($trigger) {
+            $accessor .= '$trigger->($self, $_, $attribute);';
         }
 
         $accessor .= '}';
@@ -272,17 +253,12 @@ sub validate_args {
         && $args->{isa} ne 'HashRef';
 
     if ($args->{trigger}) {
-        if (ref($args->{trigger}) eq 'CODE') {
-            $args->{trigger} = {
-                after => $args->{trigger},
-            };
-        }
-        elsif (ref($args->{trigger}) eq 'HASH') {
-            Carp::carp "HASH-based form of trigger is deprecated. Please switch back to using the coderef form of trigger.";
+        if (ref($args->{trigger}) eq 'HASH') {
+            Carp::carp "HASH-based form of trigger has been removed. Only the coderef form of triggers are now supported.";
         }
 
         confess "Trigger must be a CODE ref on attribute ($name)"
-            if ref($args->{trigger}) ne 'HASH';
+            if ref($args->{trigger}) ne 'CODE';
     }
 
     return 1;
diff --git a/lib/Mouse/Object.pm b/lib/Mouse/Object.pm
index 1511d28..115a534 100644
--- a/lib/Mouse/Object.pm
+++ b/lib/Mouse/Object.pm
@@ -20,35 +20,16 @@ sub new {
         my $default;
 
         if (defined($from) && exists($args->{$from})) {
-            if ($attribute->has_trigger && $attribute->trigger->{before}) {
-                $attribute->trigger->{before}->($instance, $args->{$from}, $attribute);
-            }
-
-            if ($attribute->has_trigger && $attribute->trigger->{around}) {
-                $attribute->trigger->{around}->(sub {
-                    $args->{$from} = $_[1];
-
-                    $attribute->verify_type_constraint($args->{$from})
-                        if $attribute->has_type_constraint;
+            $attribute->verify_type_constraint($args->{$from})
+                if $attribute->has_type_constraint;
 
-                    $instance->{$key} = $args->{$from};
+            $instance->{$key} = $args->{$from};
 
-                    weaken($instance->{$key})
-                        if ref($instance->{$key}) && $attribute->is_weak_ref;
-                }, $instance, $args->{$from}, $attribute);
-            }
-            else {
-                $attribute->verify_type_constraint($args->{$from})
-                    if $attribute->has_type_constraint;
-
-                $instance->{$key} = $args->{$from};
-
-                weaken($instance->{$key})
-                    if ref($instance->{$key}) && $attribute->is_weak_ref;
-            }
+            weaken($instance->{$key})
+                if ref($instance->{$key}) && $attribute->is_weak_ref;
 
-            if ($attribute->has_trigger && $attribute->trigger->{after}) {
-                $attribute->trigger->{after}->($instance, $args->{$from}, $attribute);
+            if ($attribute->has_trigger) {
+                $attribute->trigger->($instance, $args->{$from}, $attribute);
             }
         }
         else {
diff --git a/t/016-trigger.t b/t/016-trigger.t
index 312e9f2..223e387 100644
--- a/t/016-trigger.t
+++ b/t/016-trigger.t
@@ -1,7 +1,7 @@
 #!/usr/bin/env perl
 use strict;
 use warnings;
-use Test::More tests => 21;
+use Test::More tests => 11;
 use Test::Exception;
 
 my @trigger;
@@ -50,69 +50,3 @@ my $object2 = Class->new(attr => 100);
 is(@trigger, 1, "trigger was called on new with the attribute specified");
 is_deeply([splice @trigger], [[$object2, 100, $object2->meta->get_attribute('attr')]], "correct arguments to trigger in the constructor");
 
-do {
-    package Parent;
-    use Mouse;
-
-    has attr => (
-        is      => 'rw',
-        trigger => {
-            before => sub {
-                push @trigger, ['before', @_];
-            },
-            after => sub {
-                push @trigger, ['after', @_];
-            },
-            around => sub {
-                my $code = shift;
-                my ($self, $value, $attr) = @_;
-
-                push @trigger, ['around-before', $self, $value, $attr];
-                $code->($self, 4 * $value, $attr);
-                push @trigger, ['around-after', $self, $value, $attr];
-            },
-        },
-    );
-
-    package Child;
-    use Mouse;
-    extends 'Parent';
-
-    has '+attr' => (
-        default => 10,
-    );
-};
-
-my $child = Child->new;
-is(@trigger, 0, "trigger not called on constructor with default");
-
-is($child->attr, 10, "reader");
-is(@trigger, 0, "trigger not called on reader");
-
-is($child->attr(5), 20, "writer");
-is_deeply([splice @trigger], [
-    ['before',        $child,  5, Child->meta->get_attribute('attr')],
-    ['around-before', $child,  5, Child->meta->get_attribute('attr')],
-    ['around-after',  $child,  5, Child->meta->get_attribute('attr')],
-    ['after',         $child, 20, Child->meta->get_attribute('attr')],
-]);
-
-my $parent = Parent->new(attr => 2);
-is_deeply([splice @trigger], [
-    ['before',        $parent, 2, Parent->meta->get_attribute('attr')],
-    ['around-before', $parent, 2, Parent->meta->get_attribute('attr')],
-    ['around-after',  $parent, 2, Parent->meta->get_attribute('attr')],
-    ['after',         $parent, 8, Parent->meta->get_attribute('attr')],
-]);
-
-is($parent->attr, 8, "reader");
-is(@trigger, 0, "trigger not called on reader");
-
-is($parent->attr(10), 40, "writer");
-is_deeply([splice @trigger], [
-    ['before',        $parent, 10, Parent->meta->get_attribute('attr')],
-    ['around-before', $parent, 10, Parent->meta->get_attribute('attr')],
-    ['around-after',  $parent, 10, Parent->meta->get_attribute('attr')],
-    ['after',         $parent, 40, Parent->meta->get_attribute('attr')],
-]);
-