Moose::Deprecated::deprecated(
feature => 'type without sugar',
message =>
- 'Calling type() with a simple list of parameters is deprecated'
+ 'Calling type() with a simple list of parameters is deprecated. This will be an error in Moose 2.0200.'
);
return _create_type_constraint( $_[0], undef, $_[1] );
Moose::Deprecated::deprecated(
feature => 'subtype without sugar',
message =>
- 'Calling subtype() with a simple list of parameters is deprecated'
+ 'Calling subtype() with a simple list of parameters is deprecated. This will be an error in Moose 2.0200.'
);
return _create_type_constraint( undef, @_ );
Moose::Deprecated::deprecated(
feature => 'subtype without sugar',
message =>
- 'Calling subtype() with a simple list of parameters is deprecated'
+ 'Calling subtype() with a simple list of parameters is deprecated. This will be an error in Moose 2.0200.'
);
return _create_type_constraint( undef, @_ );
Moose::Deprecated::deprecated(
feature => 'subtype without sugar',
message =>
- 'Calling subtype() with a simple list of parameters is deprecated'
+ 'Calling subtype() with a simple list of parameters is deprecated. This will be an error in Moose 2.0200.'
);
return _create_type_constraint(@_);
subtype 'CodeRef' => as 'Ref' => where { ref($_) eq 'CODE' } =>
optimize_as \&Moose::Util::TypeConstraints::OptimizedConstraints::CodeRef;
-subtype 'RegexpRef' => as 'Ref' => where { ref($_) eq 'Regexp' } =>
- optimize_as
- \&Moose::Util::TypeConstraints::OptimizedConstraints::RegexpRef;
+subtype 'RegexpRef' => as 'Ref' =>
+ where(\&Moose::Util::TypeConstraints::OptimizedConstraints::RegexpRef) =>
+ optimize_as \&Moose::Util::TypeConstraints::OptimizedConstraints::RegexpRef;
subtype 'GlobRef' => as 'Ref' => where { ref($_) eq 'GLOB' } =>
optimize_as \&Moose::Util::TypeConstraints::OptimizedConstraints::GlobRef;
} => optimize_as
\&Moose::Util::TypeConstraints::OptimizedConstraints::FileHandle;
-# NOTE:
-# blessed(qr/.../) returns true,.. how odd
subtype 'Object' => as 'Ref' =>
- where { blessed($_) && blessed($_) ne 'Regexp' } =>
+ where { blessed($_) } =>
optimize_as \&Moose::Util::TypeConstraints::OptimizedConstraints::Object;
# This type is deprecated.
use Moose::Util::TypeConstraints;
- subtype 'Natural'
- => as 'Int'
- => where { $_ > 0 };
+ subtype 'Natural',
+ as 'Int',
+ where { $_ > 0 };
- subtype 'NaturalLessThanTen'
- => as 'Natural'
- => where { $_ < 10 }
- => message { "This number ($_) is not less than ten!" };
+ subtype 'NaturalLessThanTen',
+ as 'Natural',
+ where { $_ < 10 },
+ message { "This number ($_) is not less than ten!" };
- coerce 'Num'
- => from 'Str'
- => via { 0+$_ };
+ coerce 'Num',
+ from 'Str',
+ via { 0+$_ };
- enum 'RGBColors' => qw(red green blue);
+ enum 'RGBColors', [qw(red green blue)];
no Moose::Util::TypeConstraints;
yet to have been created, is to quote the type name:
use DateTime;
- subtype 'DateTime' => as 'Object' => where { $_->isa('DateTime') };
+ subtype 'DateTime', as 'Object', where { $_->isa('DateTime') };
=head2 Default Type Constraints
L<Declare::Constraints::Simple> to declare a completely new type.
type 'HashOfArrayOfObjects',
- {
- where => IsHashRef(
- -keys => HasLength,
- -values => IsArrayRef(IsObject)
- )
- };
-
-For more examples see the F<t/200_examples/004_example_w_DCS.t> test
+ where {
+ IsHashRef(
+ -keys => HasLength,
+ -values => IsArrayRef(IsObject)
+ )->(@_);
+ };
+
+For more examples see the F<t/examples/example_w_DCS.t> test
file.
Here is an example of using L<Test::Deep> and it's non-test
related C<eq_deeply> function.
- type 'ArrayOfHashOfBarsAndRandomNumbers'
- => where {
+ type 'ArrayOfHashOfBarsAndRandomNumbers',
+ where {
eq_deeply($_,
array_each(subhashof({
bar => isa('Bar'),
};
For a complete example see the
-F<t/200_examples/005_example_w_TestDeep.t> test file.
+F<t/examples/example_w_TestDeep.t> test file.
+
+=head2 Error messages
+
+Type constraints can also specify custom error messages, for when they fail to
+validate. This is provided as just another coderef, which receives the invalid
+value in C<$_>, as in:
+
+ subtype 'PositiveInt',
+ as 'Int',
+ where { $_ > 0 },
+ message { "$_ is not a positive integer!" };
+
+If no message is specified, a default message will be used, which indicates
+which type constraint was being used and what value failed. If
+L<Devel::PartialDump> (version 0.14 or higher) is installed, it will be used to
+display the invalid value, otherwise it will just be printed as is.
=head1 FUNCTIONS
=over 4
-=item B<< subtype 'Name' => as 'Parent' => where { } ... >>
+=item B<< subtype 'Name', as 'Parent', where { } ... >>
This creates a named subtype.
The valid hashref keys are C<as> (the parent), C<where>, C<message>,
and C<optimize_as>.
-=item B<< subtype as 'Parent' => where { } ... >>
+=item B<< subtype as 'Parent', where { } ... >>
This creates an unnamed subtype and will return the type
constraint meta-object, which will be an instance of
type constraint which can be used to avoid traversing a subtype
constraint hierarchy.
-B<NOTE:> You should only use this if you know what you are doing,
-all the built in types use this, so your subtypes (assuming they
+B<NOTE:> You should only use this if you know what you are doing.
+All the built in types use this, so your subtypes (assuming they
are shallow) will not likely need to use this.
-=item B<< type 'Name' => where { } ... >>
+=item B<< type 'Name', where { } ... >>
This creates a base type, which has no parent.
=over 4
-=item B<< coerce 'Name' => from 'OtherName' => via { ... } >>
+=item B<< coerce 'Name', from 'OtherName', via { ... } >>
This defines a coercion from one type to another. The C<Name> argument
is the type you are coercing I<to>.
To define multiple coercions, supply more sets of from/via pairs:
- coerce 'Name' =>
- from 'OtherName' => via { ... },
- from 'ThirdName' => via { ... };
+ coerce 'Name',
+ from 'OtherName', via { ... },
+ from 'ThirdName', via { ... };
=item B<from 'OtherName'>
=item B<find_or_create_does_type_constraint($type_name)>
These functions will first call C<find_or_parse_type_constraint>. If
-that function does not return a type, a new anonymous type object will
+that function does not return a type, a new type object will
be created.
The C<isa> variant will use C<create_class_type_constraint> and the
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