X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=gitmo%2FMouse.git;a=blobdiff_plain;f=lib%2FMouse%2FMeta%2FTypeConstraint.pm;h=2593b8250a3bb7bf64636b1fc0679d1f3163d9f1;hp=a786ced706a784b399d9dda45d9a440f545d6fd2;hb=de0d4152ac07ed26a928841729e97366187b2915;hpb=b4d791ba8c0469589992854be1b6c40c80ec4f0a diff --git a/lib/Mouse/Meta/TypeConstraint.pm b/lib/Mouse/Meta/TypeConstraint.pm index a786ced..2593b82 100644 --- a/lib/Mouse/Meta/TypeConstraint.pm +++ b/lib/Mouse/Meta/TypeConstraint.pm @@ -17,8 +17,6 @@ use overload use Carp (); -my $null_check = sub { 1 }; - sub new { my($class, %args) = @_; @@ -26,13 +24,6 @@ sub new { my $check = delete $args{optimized}; - if($args{_compiled_type_constraint}){ - Carp::cluck("'_compiled_type_constraint' has been deprecated, use 'optimized' instead") - if _MOUSE_VERBOSE; - - $check = $args{_compiled_type_constraint}; - } - if($check){ $args{hand_optimized_type_constraint} = $check; $args{compiled_type_constraint} = $check; @@ -90,60 +81,14 @@ sub create_child_type{ ); } +sub name; +sub parent; +sub message; +sub has_coercion; +sub _compiled_type_constraint; +sub _compiled_type_coercion; -sub compile_type_constraint{ - my($self) = @_; - - # add parents first - my @checks; - for(my $parent = $self->parent; defined $parent; $parent = $parent->parent){ - if($parent->{hand_optimized_type_constraint}){ - unshift @checks, $parent->{hand_optimized_type_constraint}; - last; # a hand optimized constraint must include all the parents - } - elsif($parent->{constraint}){ - unshift @checks, $parent->{constraint}; - } - } - - # then add child - if($self->{constraint}){ - push @checks, $self->{constraint}; - } - - if($self->{type_constraints}){ # Union - my @types = map{ $_->_compiled_type_constraint } @{ $self->{type_constraints} }; - push @checks, sub{ - foreach my $c(@types){ - return 1 if $c->($_[0]); - } - return 0; - }; - } - - if(@checks == 0){ - $self->{compiled_type_constraint} = $null_check; - } - elsif(@checks == 1){ - my $c = $checks[0]; - $self->{compiled_type_constraint} = sub{ - my(@args) = @_; - local $_ = $args[0]; - return $c->(@args); - }; - } - else{ - $self->{compiled_type_constraint} = sub{ - my(@args) = @_; - local $_ = $args[0]; - foreach my $c(@checks){ - return undef if !$c->(@args); - } - return 1; - }; - } - return; -} +sub compile_type_constraint; sub _add_type_coercions{ my $self = shift; @@ -171,15 +116,15 @@ sub _add_type_coercions{ } else{ $self->{_compiled_type_coercion} = sub { - my($thing) = @_; - foreach my $pair (@{$coercions}) { - #my ($constraint, $converter) = @$pair; - if ($pair->[0]->check($thing)) { + my($thing) = @_; + foreach my $pair (@{$coercions}) { + #my ($constraint, $converter) = @$pair; + if ($pair->[0]->check($thing)) { local $_ = $thing; return $pair->[1]->($thing); - } - } - return $thing; + } + } + return $thing; }; } return; @@ -193,10 +138,14 @@ sub check { sub coerce { my $self = shift; + my $coercion = $self->_compiled_type_coercion; + if(!$coercion){ + Carp::confess("Cannot coerce without a type coercion"); + } + return $_[0] if $self->_compiled_type_constraint->(@_); - my $coercion = $self->_compiled_type_coercion; - return $coercion ? $coercion->(@_) : $_[0]; + return $coercion->(@_); } sub get_message { @@ -249,11 +198,12 @@ sub parameterize{ || Carp::confess("The $name constraint cannot be used, because $param doesn't subtype from a parameterizable type"); return Mouse::Meta::TypeConstraint->new( - name => $name, - parent => $self, - constraint => $generator->($param), + name => $name, + parent => $self, + parameter => $param, + constraint => $generator->($param), # must be 'constraint', not 'optimized' - type => 'Parameterized', + type => 'Parameterized', ); } @@ -266,7 +216,7 @@ Mouse::Meta::TypeConstraint - The Mouse Type Constraint metaclass =head1 VERSION -This document describes Mouse version 0.40_02 +This document describes Mouse version 0.49 =head1 DESCRIPTION