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.IX Title "MooseX::Types::Combine 3"
.TH MooseX::Types::Combine 3 2026-10-25 "perl v5.44.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\&    package CombinedTypeLib;
\&
\&    use base \*(AqMooseX::Types::Combine\*(Aq;
\&
\&    _\|_PACKAGE_\|_\->provide_types_from(qw/TypeLib1 TypeLib2/);
\&
\&    package UserClass;
\&
\&    use CombinedTypeLib qw/Type1 Type2 ... /;
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
Allows you to create a single class that will allow you to export types from
multiple type libraries:
.PP
.Vb 1
\&    package TransportTypes;
\&
\&    use base \*(AqMooseX::Types::Combine\*(Aq;
\&
\&    _\|_PACKAGE_\|_\->provide_types_from(qw/ MotorizedTypes UnmotorizedTypes /);
\&
\&    1;
.Ve
.PP
In this example all types defined in \f(CW\*(C`MotorizedTypes\*(C'\fR and \f(CW\*(C`UnmotorizedTypes\*(C'\fR
are available through the \f(CW\*(C`TransportTypes\*(C'\fR combined type library.
.PP
.Vb 1
\&    package SkiingTrip;
\&
\&    use Moose;
\&
\&    use TransportTypes qw( CarType SkisType );
\&
\&    has car => ( is => \*(Aqro\*(Aq, isa => CarType, required => 1 );
\&    has ski_rack => ( is => \*(Aqro\*(Aq, isa => ArrayRef[SkisType], required => 1 );
\&    ...
.Ve
.PP
Libraries on the right end of the list passed to "provide_types_from" take
precedence over those on the left in case of conflicts.  So, in the above
example if both the \f(CW\*(C`MotorizedTypes\*(C'\fR and \f(CW\*(C`UnmotorizedTypes\*(C'\fR libraries provided
a \f(CW\*(C`Bike\*(C'\fR type, you\*(Aqd get the bicycle from \f(CW\*(C`UnmotorizedTypes\*(C'\fR not the
motorbike from \f(CW\*(C`MorotizedTypes\*(C'\fR.
.PP
You can also further combine combined type libraries with additional type
libraries or other combined type libraries in the same way to provide even
larger type libraries:
.PP
.Vb 1
\&    package MeetingTransportTypes;
\&
\&    use base \*(AqMooseX::Types::Combine\*(Aq;
\&
\&    _\|_PACKAGE_\|_\->provide_types_from(qw/ TransportTypes TelepresenceTypes /);
\&
\&    1;
.Ve
.SH "CLASS METHODS"
.IX Header "CLASS METHODS"
.SS provide_types_from
.IX Subsection "provide_types_from"
Sets or returns a list of type libraries (or combined type libraries) to
re\-export from.
.SS type_names
.IX Subsection "type_names"
Returns a list of all known types by their name.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
MooseX::Types