X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=moose-class%2Fslides%2Findex.html;h=b3f57f681376337f550f7a3624631f0a305fcc1c;hb=7f7e655a677ae4e66c2bf208a9898c796a12e779;hp=b2d52473f71cb60c1bf52d8ed40a24cbb65e47bb;hpb=0f4c9ec089ca428cb9407b49311ae4eae7928e31;p=gitmo%2Fmoose-presentations.git
diff --git a/moose-class/slides/index.html b/moose-class/slides/index.html
index b2d5247..b3f57f6 100644
--- a/moose-class/slides/index.html
+++ b/moose-class/slides/index.html
@@ -71,7 +71,7 @@ img#me05 {top: 43px;left: 36px;}
- Declarative OO sugar
- Introspectable
- - Extensible (188 MooseX::* on CPAN)
+ - Extensible (202 MooseX::* on CPAN)
- Community approved (1200+ downstream dependents on CPAN)
@@ -950,10 +950,10 @@ sub BUILD {
Object Construction a la Moose
-
Person->new(@_)
+
Person->new(@args)
- - Calls
Person->BUILDARGS(@_)
to turn @_
into a hashref
+ - Calls
Person->BUILDARGS(@args)
to turn @args
into a hashref
- Blesses a reference
- Populates attributes based on the hashref from #1
- Calls
$new_object->BUILDALL($constructor_args)
@@ -1032,7 +1032,7 @@ extends 'LWP';
- No
DEMOLISH()
- - But see
MooseX::NonMoose
for a workaround
+ - But
MooseX::NonMoose
fixes all of this
@@ -1155,8 +1155,8 @@ Person->can('extends');
Cleaning Up Moose Droppings
package Person;
-use namespace::autoclean;
use Moose;
+use namespace::autoclean;
...
@@ -1487,34 +1487,6 @@ Integer->does('Comparable'); # also true!
-
Name Conflicts Between Roles
-
-
package HasSubProcess;
-use Moose::Role;
-
-sub execute { ... }
-
-package Killer;
-use Moose::Role;
-
-with 'HasSubProcess';
-
-sub execute { ... }
-
-
-
-
Delayed Conflict
-
-
package SysadminAssassin;
-with 'Killer';
-
-
- SysadminAssassin
must implement its own execute
- - But loading the
Killer
role by itself does not cause an error
-
-
-
-
Roles as Interfaces
@@ -1725,6 +1697,15 @@ has 'is_ripped' => ( is => 'rw' );
+
Read-only vs Read-write
+
+
+ - Read-only is preferred
+ - Minimize state in your application
+
+
+
+
Required-ness
@@ -2037,15 +2018,7 @@ Person->new( shoes => Shoes->new );
- By default, subclasses inherit attribute as-is
- - Can change some attribute parameters in subclasses
-
- - default
- - builder
- - required
- - lazy
- - others we've not yet covered
-
-
+ - Can change attribute parameters in subclasses
@@ -2421,9 +2394,9 @@ around run => sub {
alter parameters passed to the original method
alter the return value of the original method
not call the original method at all (or call a different method)
- When using modifiers in a role, require the modified method
+ When using modifiers in a role, require the modified method
@@ -2752,7 +2725,8 @@ coerce 'My::DateTime',
Coercion Examples
-
coerce 'ArrayRef[Int]',
+ # BAD CODE - DO NOT COPY
+coerce 'ArrayRef[Int]',
from 'Int',
via { [ $_ ] };
@@ -2850,7 +2824,7 @@ sub work {
Digression: The Type Registry
- - Types are actually
Moose::Meta::TypeConstraints
objects
+ - Types are actually
Moose::Meta::TypeConstraint
objects
- Stored in an interpreter-global registry mapping names to objects
@@ -3290,7 +3264,6 @@ has history => (
use Moose;
has _favorite_numbers => (
traits => [ 'Array' ],
- is => 'bare',
isa => 'ArrayRef[Int]',
default => sub { [] },
init_arg => undef,
@@ -3457,6 +3430,10 @@ print Person->meta
+
Questions?
+
+
+
Exercises
# cd exercises
@@ -3487,7 +3464,7 @@ Iterate til this passes all its tests
- Not comprehensive
- - 177 MooseX distributions on CPAN as of 09/21/2010
+ - 188 MooseX distributions on CPAN as of 02/03/2011
- Some of them are crap
@@ -3508,7 +3485,7 @@ Iterate til this passes all its tests
MooseX::Declare
use MooseX::Declare;
-use 5.10.0; # for say
+use 5.12.0; # for say
class Person {
has greeting =>
@@ -3700,7 +3677,7 @@ with HasCollection => { type => 'Int' };
mailing list - moose@perl.org
Slides and exercises are in Moose's git repo:
- git://jules.scsys.co.uk/gitmo/moose-presentations
+ git://git.moose.perl.org/moose-presentations.git