use Carp 'confess';
use Scalar::Util ();
+use Mouse::Meta::TypeConstraint;
+use Mouse::Meta::Method::Accessor;
sub new {
my ($class, $name, %options) = @_;
sub is_weak_ref { $_[0]->{weak_ref} }
sub init_arg { $_[0]->{init_arg} }
sub type_constraint { $_[0]->{type_constraint} }
+sub find_type_constraint {
+ Carp::carp("This method was deprecated");
+ $_[0]->type_constraint();
+}
sub trigger { $_[0]->{trigger} }
sub builder { $_[0]->{builder} }
sub should_auto_deref { $_[0]->{auto_deref} }
sub should_coerce { $_[0]->{should_coerce} }
-sub find_type_constraint { $_[0]->{find_type_constraint} }
sub has_default { exists $_[0]->{default} }
sub has_predicate { exists $_[0]->{predicate} }
return $key;
}
-sub generate_accessor {
- my $attribute = shift;
-
- my $name = $attribute->name;
- my $default = $attribute->default;
- my $constraint = $attribute->find_type_constraint;
- my $builder = $attribute->builder;
- my $trigger = $attribute->trigger;
- my $is_weak = $attribute->is_weak_ref;
- my $should_deref = $attribute->should_auto_deref;
- my $should_coerce = $attribute->should_coerce;
-
- my $self = '$_[0]';
- my $key = $attribute->inlined_name;
-
- my $accessor = "sub {\n";
- if ($attribute->_is_metadata eq 'rw') {
- $accessor .= '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.');';
- } else {
- $accessor .= $value.';';
- }
- $accessor .= 'local $_ = $val;';
- $accessor .= '
- unless ($constraint->()) {
- $attribute->verify_type_constraint_error($name, $_, $attribute->type_constraint);
- }' . "\n";
- $value = '$val';
- }
-
- # if there's nothing left to do for the attribute we can return during
- # this setter
- $accessor .= 'return ' if !$is_weak && !$trigger && !$should_deref;
-
- $accessor .= $self.'->{'.$key.'} = '.$value.';' . "\n";
-
- if ($is_weak) {
- $accessor .= 'Scalar::Util::weaken('.$self.'->{'.$key.'}) if ref('.$self.'->{'.$key.'});' . "\n";
- }
-
- if ($trigger) {
- $accessor .= '$trigger->('.$self.', '.$value.', $attribute);' . "\n";
- }
-
- $accessor .= "}\n";
- }
- else {
- $accessor .= 'confess "Cannot assign a value to a read-only accessor" if scalar(@_) >= 2;' . "\n";
- }
-
- if ($attribute->is_lazy) {
- $accessor .= $self.'->{'.$key.'} = ';
-
- $accessor .= $attribute->has_builder
- ? $self.'->$builder'
- : ref($default) eq 'CODE'
- ? '$default->('.$self.')'
- : '$default';
- $accessor .= ' if !exists '.$self.'->{'.$key.'};' . "\n";
- }
-
- if ($should_deref) {
- my $type_constraint = $attribute->type_constraint;
- if (!ref($type_constraint) && $type_constraint eq 'ArrayRef') {
- $accessor .= 'if (wantarray) {
- return @{ '.$self.'->{'.$key.'} || [] };
- }';
- }
- else {
- $accessor .= 'if (wantarray) {
- return %{ '.$self.'->{'.$key.'} || {} };
- }';
- }
- }
-
- $accessor .= 'return '.$self.'->{'.$key.'};
- }';
-
- my $sub = eval $accessor;
- confess $@ if $@;
- return $sub;
-}
-
sub generate_predicate {
my $attribute = shift;
my $key = $attribute->inlined_name;
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;
- }
- $args{find_type_constraint} = $code;
+ $args{type_constraint}= Mouse::Util::TypeConstraints::find_or_create_isa_type_constraint($type_constraint);
}
my $attribute = $self->new($name, %args);
# install an accessor
if ($attribute->_is_metadata eq 'rw' || $attribute->_is_metadata eq 'ro') {
- my $accessor = $attribute->generate_accessor;
- $class->add_method($name => $accessor);
+ my $code = Mouse::Meta::Method::Accessor->generate_accessor_method_inline(
+ $attribute,
+ );
+ $class->add_method($name => $code);
}
for my $method (qw/predicate clearer/) {
confess "You cannot auto-dereference anything other than a ArrayRef or HashRef on attribute ($name)"
if $args->{auto_deref}
- && $args->{isa} ne 'ArrayRef'
- && $args->{isa} ne 'HashRef';
+ && $args->{isa} !~ /^(?:ArrayRef|HashRef)(?:\[.*\])?$/;
if ($args->{trigger}) {
if (ref($args->{trigger}) eq 'HASH') {
}
sub verify_against_type_constraint {
- return 1 unless $_[0]->{type_constraint};
+ my ($self, $value) = @_;
+ my $tc = $self->type_constraint;
+ return 1 unless $tc;
- local $_ = $_[1];
- return 1 if $_[0]->{find_type_constraint}->($_);
+ local $_ = $value;
+ return 1 if $tc->check($value);
- my $self = shift;
- $self->verify_type_constraint_error($self->name, $_, $self->type_constraint);
+ $self->verify_type_constraint_error($self->name, $value, $tc);
}
sub verify_type_constraint_error {
my($self, $name, $value, $type) = @_;
- $type = ref($type) eq 'ARRAY' ? join '|', @{ $type } : $type;
- my $display = defined($_) ? overload::StrVal($_) : 'undef';
- Carp::confess("Attribute ($name) does not pass the type constraint because: Validation failed for \'$type\' failed with value $display");
+ Carp::confess("Attribute ($name) does not pass the type constraint because: " . $type->get_message($value));
}
sub coerce_constraint { ## my($self, $value) = @_;
my $type = $_[0]->{type_constraint}
or return $_[1];
- return Mouse::Util::TypeConstraints->typecast_constraints($_[0]->associated_class->name, $_[0]->find_type_constraint, $type, $_[1]);
+ return Mouse::Util::TypeConstraints->typecast_constraints($_[0]->associated_class->name, $_[0]->type_constraint, $_[1]);
}
sub _canonicalize_handles {
Creates a new code reference for each of the attribute's handles methods.
-=head2 find_type_constraint -> CODE
-
-Returns a code reference which can be used to check that a given value passes
-this attribute's type constraint;
-
=head2 verify_against_type_constraint Item -> 1 | ERROR
Checks that the given value passes this attribute's type constraint. Returns 1
projects / gitmo/Mouse.git / blobdiff