Object::Declare 0.13

Object::Declare is a Perl module for declarative object constructor. SYNOPSIS use Object::Declare ['MyApp::Column', 'MyApp:

Developer:	Audrey Tang more software by author →
Price:	0.00
License:	Perl Artistic License
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Object::Declare is a Perl module for declarative object constructor.

SYNOPSIS

use Object::Declare ['MyApp::Column', 'MyApp::Param'];

my %objects = declare {

param foo =>
!is global,
is immutable,
valid_values are qw( more values );

column bar =>
field1 is 'value',
field2 is 'some_other_value';

};

print $objects{foo}; # a MyApp::Param object
print $objects{bar}; # a MyApp::Column object

This module exports one function, declare, for building named objects with a declarative syntax, similar to how Jifty::DBI::Schema defines its columns.

In list context, declare returns a list of name/object pairs in the order of declaration (allowing duplicates), suitable for putting into a hash. In scalar context, declare returns a hash reference.
Using a flexible import interface, one can change exported helper functions names (declarator), words to link labels and values together (copula), and the table of named classes to declare (mapping):

use Object::Declare
declarator => ['declare'], # list of declarators
copula => { # list of words, or a map
is => '', # from copula to prefixes for
are => '', # labels built with that copula
}
aliases => { # list of label aliases:
more => 'less', # turns "is more" into "is less"
# and "more is 1" into "less is 1"
},
mapping => {
column => 'MyApp::Column', # class name to call ->new to
param => sub { # arbitrary coderef also works
bless(@_, 'MyApp::Param');
},
};

After the declarator block finishes execution, all helper functions are removed from the package. Same-named functions (such as &is and &are) that existed before the declarator's execution are restored correctly.

Requirements:

Perl
tags

object declare myapp column myapp param helper functions the declarator declare returns context declare use object column myapp

Download Object::Declare 0.13

http://ftp.hostingromania.ro/Linux/mirrors/ftp.cpan.org/authors/id/A/AU/AUDREYT/Object-Declare-0.13.tar.gz

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