annotate Lib/IMPL/Object.pm @ 168:6148f89bb7bf

IMPL::SQL::Schema::Traits::Diff alfa version IMPL::lang added hash traits
author sourcer
date Mon, 16 May 2011 04:30:38 +0400
parents 76515373dac0
children d1676be8afcc
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1 package IMPL::Object;
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2 use strict;
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3
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4 use parent qw(IMPL::Object::Abstract);
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5
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6 sub surrogate {
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7 bless {}, ref $_[0] || $_[0];
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8 }
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9
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10 sub new {
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11 my $class = shift;
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12 my $self = bless {}, ref($class) || $class;
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13 $self->callCTOR(@_);
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14
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15 $self;
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16 }
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17
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18 sub _PropertyImplementor {
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19 'IMPL::Class::Property::Direct'
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20 }
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21
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22 1;
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23
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24 __END__
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25
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26 =pod
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27
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28 =head1 SINOPSYS
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29
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30 =begin code
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31
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32 package Foo;
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33 use parent qw(IMPL::Object);
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34
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35 sub CTOR {
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36 my ($this,$arg) = @_;
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37 print "Foo: $arg\n";
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38 }
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39
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40 package Bar;
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41 use parent qw(IMPL::Object);
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42
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43 sub CTOR {
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44 my ($this,$arg) = @_;
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45 print "Bar: $arg\n";
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46 }
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47
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48 package Baz;
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49 use parent qw(Foo Bar);
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50
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51 our %CTOR = (
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52 Foo => sub { my %args = @_; $args{Mazzi}; },
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53 Bar => sub { my %args = @_; $args{Fugi}; }
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54 );
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55
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56 package Composite;
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57 use parent qw(Baz Foo Bar);
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58
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59 our %CTOR = (
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60 Foo => undef,
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61 Bar => undef
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62 );
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63
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64 sub CTOR {
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65 my ($this,%args) = @_;
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66
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67 print "Composite: $args{Text}\n";
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68 }
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69
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70 package main;
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71
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72 my $obj = new Composite(
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73 Text => 'Hello World!',
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74 Mazzi => 'Mazzi',
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75 Fugi => 'Fugi'
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76 );
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77
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78 # will print
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79 #
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80 # Foo: Mazzi
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81 # Bar: Fugi
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82 # Bar:
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83 # Composite: Hello World!
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84
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85 =end code
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86
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87 =head1 Description
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88
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89 Базовый класс для объектов, основанных на хеше.
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90
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91 =head1 Members
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92
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93 =over
49
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94
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95 =item operator C<new>(@args)
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96
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97 Создает экземпляр объекта и вызывает конструктор с параметрами @args.
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98
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99 =item operator C<surrogate>()
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100
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101 Создает неинициализированный экземпляр объекта.
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102
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103 =back
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104
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105 =head1 Cavearts
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106
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107 Нужно заметить, что директива C<use parent> работает не совсем прозрачно, если в нашем примере
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108 класс C<Composite> наследуется от C<Baz>, а затем C<Foo>, то наследование от
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109 C<Foo> не произойдет поскольку он уже имеется в C<Baz>. Вот не задача:)
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110
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111 =cut