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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 base qw(IMPL::Class::Meta);
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5
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6 our $MemoryLeakProtection;
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7 my $Cleanup = 0;
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8 our $Debug;
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9 our %leaked_objects;
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10
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11 my %cacheCTOR;
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12
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13
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14 sub new {
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15 my $class = shift;
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16 my $self = bless {}, ref($class) || $class;
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17
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18 $self->$_(@_) foreach @{$cacheCTOR{ref $self} || cache_ctor(ref $self)};
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19
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20 $self;
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21 }
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22 my $t = 0;
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23 sub cache_ctor {
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24 my $class = shift;
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25
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26 no strict 'refs';
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27 my @sequence;
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28
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29 my $refCTORS = *{"${class}::CTOR"}{HASH};
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30
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31 foreach my $super ( @{"${class}::ISA"} ) {
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32 my $superSequence = $cacheCTOR{$super} || cache_ctor($super);
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33
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34 my $mapper = $refCTORS ? $refCTORS->{$super} : undef;
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35 if (ref $mapper eq 'CODE') {
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36 if ($mapper == *_pass_throgh_mapper{CODE}) {
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37 push @sequence,@$superSequence;
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38 } else {
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39 push @sequence, sub {
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40 my $this = shift;
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41 $this->$_($mapper->(@_)) foreach @$superSequence;
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42 };
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43 }
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44 } else {
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45 warn "Unsupported mapper type, in '$class' for the super class '$super'" if $mapper;
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46 push @sequence, sub {
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47 my $this = shift;
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48 $this->$_() foreach @$superSequence;
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49 };
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50 }
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51 }
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52
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53 push @sequence, *{"${class}::CTOR"}{CODE} if *{"${class}::CTOR"}{CODE};
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54
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55 $cacheCTOR{$class} = \@sequence;
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56 return \@sequence;
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57 }
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58
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59 sub callCTOR {
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60 my $self = shift;
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61 my $class = ref $self;
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62
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63 $self->$_(@_) foreach @{$cacheCTOR{$class} || cache_ctor($class)};
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64 }
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65
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66 sub surrogate {
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67 bless {}, ref $_[0] || $_[0];
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68 }
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69
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70 sub superCTOR {
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71 my $this = shift;
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72
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73 warn "The mehod is deprecated, at " . caller;
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74 }
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75
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76 sub toString {
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77 my $self = shift;
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78
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79 return (ref $self || $self);
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80 }
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81
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82 sub DESTROY {
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83 if ($MemoryLeakProtection and $Cleanup) {
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84 my $this = shift;
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85 warn sprintf("Object leaks: %s of type %s %s",$this->can('ToString') ? $this->ToString : $this,ref $this,UNIVERSAL::can($this,'_dump') ? $this->_dump : '');
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86 }
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87 }
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88
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89 sub END {
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90 $Cleanup = 1;
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91 $MemoryLeakProtection = 0 unless $Debug;
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92 }
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93
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94 sub _pass_throgh_mapper {
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95 @_;
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96 }
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97
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98 sub PassThroughArgs {
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99 my $class = shift;
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100 $class = ref $class || $class;
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101 no strict 'refs';
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102 no warnings 'once';
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103 ${"${class}::CTOR"}{$_} = \&_pass_throgh_mapper foreach @{"${class}::ISA"};
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104 }
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105
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106 package self;
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107
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108 our $AUTOLOAD;
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109 sub AUTOLOAD {
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110 goto &{caller(). substr $AUTOLOAD,4};
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111 }
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112
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113 package supercall;
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114
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115 our $AUTOLOAD;
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116 sub AUTOLOAD {
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117 my $sub;
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118 my $methodName = substr $AUTOLOAD,11;
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119 no strict 'refs';
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120 $sub = $_->can($methodName) and $sub->(@_) foreach @{caller().'::ISA'};
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121 }
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122
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123 =pod
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124 =h1 SYNOPSIS
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125
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126 package Foo;
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127 use base qw(IMPL::Object);
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128
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129 sub CTOR {
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130 my ($this,$arg) = @_;
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131 print "Foo: $arg\n";
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132 }
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133
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134 package Bar;
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135 use base qw(IMPL::Object);
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136
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137 sub CTOR {
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138 my ($this,$arg) = @_;
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139 print "Bar: $arg\n";
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140 }
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141
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142 package Baz;
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143 use base qw(Foo Bar);
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144
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145 our %CTOR = (
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146 Foo => sub { my %args = @_; $args{Mazzi}; },
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147 Bar => sub { my %args = @_; $args{Fugi}; }
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148 );
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149
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150 package Composite;
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151 use base qw(Baz Foo Bar);
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152
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153 our %CTOR = (
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154 Foo => undef,
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155 Bar => undef
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156 );
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157
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158 sub CTOR {
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159 my ($this,%args) = @_;
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160
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161 print "Composite: $args{Text}\n";
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162 }
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163
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164 package main;
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165
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166 my $obj = new Composite(
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167 Text => 'Hello World!',
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168 Mazzi => 'Mazzi',
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169 Fugi => 'Fugi'
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170 );
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171
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172 # will print
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173 #
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174 # Foo: Mazzi
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175 # Bar: Fugi
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176 # Foo:
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177 # Bar:
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178 # Composite: Hello World!
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179
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180 =h1 Description
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181 Áàçîâûé êëàññ äëÿ îáúåêòîâ. Ðåàëèçóåò ìíîæåñòâåííîå íàñëåäîâàíèå
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182
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183
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184 =h1 Members
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185 =cut
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186
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187 1; |
