use Carp 'confess';
use Scalar::Util ();
+use Mouse::Meta::TypeConstraint;
sub new {
my ($class, $name, %options) = @_;
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} }
my $name = $attribute->name;
my $default = $attribute->default;
- my $constraint = $attribute->find_type_constraint;
+ my $constraint = $attribute->type_constraint;
my $builder = $attribute->builder;
my $trigger = $attribute->trigger;
my $is_weak = $attribute->is_weak_ref;
my $self = '$_[0]';
my $key = $attribute->inlined_name;
- my $accessor = "sub {\n";
+ my $accessor =
+ '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
+ "sub {\n";
if ($attribute->_is_metadata eq 'rw') {
- $accessor .= 'if (@_ >= 2) {' . "\n";
+ $accessor .=
+ '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
+ '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.');';
+ $accessor .=
+ "\n".
+ '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
+ 'Mouse::Util::TypeConstraints->typecast_constraints("'.$attribute->associated_class->name.'", $attribute->{type_constraint}, '.$value.');';
} else {
$accessor .= $value.';';
}
- $accessor .= '
- unless ($constraint->($val)) {
- $attribute->verify_type_constraint_error($name, $val, $attribute->type_constraint);
+ $accessor .=
+ "\n".
+ '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
+ 'unless ($constraint->check($val)) {
+ $attribute->verify_type_constraint_error($name, $val, $attribute->{type_constraint});
}' . "\n";
$value = '$val';
}
}
if ($should_deref) {
- my $type_constraint = $attribute->type_constraint;
- if (!ref($type_constraint) && $type_constraint eq 'ArrayRef') {
+ my $type_constraint = $attribute->{type_constraint};
+ if (ref($type_constraint) && $type_constraint->name eq 'ArrayRef') {
$accessor .= 'if (wantarray) {
return @{ '.$self.'->{'.$key.'} || [] };
}';
return \%method_map;
}
-my $optimized_constraints;
-sub _build_type_constraint {
- my $spec = shift;
- $optimized_constraints ||= Mouse::Util::TypeConstraints->optimized_constraints;
- my $code;
- if ($spec =~ /^([^\[]+)\[(.+)\]$/) {
- # parameterized
- my $constraint = $1;
- my $param = $2;
- my $parent = _build_type_constraint($constraint);
- my $child = _build_type_constraint($param);
- if ($constraint eq 'ArrayRef') {
- my $code_str =
- "sub {\n" .
- " if (\$parent->(\$_)) {\n" .
- " foreach my \$e (@\$_) {\n" .
- " local \$_ = \$e;\n" .
- " return () unless \$child->(\$_);\n" .
- " }\n" .
- " return 1;\n" .
- " }\n" .
- " return ();\n" .
- "};\n"
- ;
- $code = eval $code_str or Carp::confess($@);
- } elsif ($constraint eq 'HashRef') {
- my $code_str =
- "sub {\n" .
- " if (\$parent->(\$_)) {\n" .
- " foreach my \$e (values %\$_) {\n" .
- " local \$_ = \$e;\n" .
- " return () unless \$child->(\$_);\n" .
- " }\n" .
- " return 1;\n" .
- " }\n" .
- " return ();\n" .
- "};\n"
- ;
- $code = eval $code_str or Carp::confess($@);
- } else {
- Carp::confess("Support for parameterized types other than ArrayRef or HashRef is not implemented yet");
- }
- $optimized_constraints->{$spec} = $code;
- } else {
- $code = $optimized_constraints->{ $spec };
- if (! $code) {
- $code = sub { Scalar::Util::blessed($_[0]) && $_[0]->isa($spec) };
- $optimized_constraints->{$spec} = $code;
- }
- }
- return $code;
-}
-
sub create {
my ($self, $class, $name, %args) = @_;
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 'HashRef' &&
+ $1 ne 'Maybe'
+ ;
my $type_constraint = delete $args{isa};
- $type_constraint =~ s/\s//g;
- my @type_constraints = split /\|/, $type_constraint;
-
- my $code;
- if (@type_constraints == 1) {
- $code = _build_type_constraint($type_constraints[0]);
- $args{type_constraint} = $type_constraints[0];
- } else {
- my @code_list = map {
- _build_type_constraint($_)
- } @type_constraints;
- $code = sub {
- local $_ = $_[0];
- 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);
return 1 unless $_[0]->{type_constraint};
local $_ = $_[1];
- return 1 if $_[0]->{find_type_constraint}->($_);
+ return 1 if $_[0]->{type_constraint}->check($_);
my $self = shift;
- $self->verify_type_constraint_error($self->name, $_, $self->type_constraint);
+ $self->verify_type_constraint_error($self->name, $_, $self->{type_constraint});
}
sub verify_type_constraint_error {
my($self, $name, $value, $type) = @_;
- $type = ref($type) eq 'ARRAY' ? join '|', @{ $type } : $type;
+ $type = ref($type) eq 'ARRAY' ? join '|', map { $_->name } @{ $type } : $type->name;
my $display = defined($value) ? overload::StrVal($value) : 'undef';
Carp::confess("Attribute ($name) does not pass the type constraint because: Validation failed for \'$type\' failed with value $display");
}
sub coerce_constraint { ## my($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