diff Lib/IMPL/Object.pm @ 0:03e58a454b20

Создан репозитарий
author Sergey
date Tue, 14 Jul 2009 12:54:37 +0400
parents
children 78cd38551534
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Lib/IMPL/Object.pm	Tue Jul 14 12:54:37 2009 +0400
@@ -0,0 +1,187 @@
+package IMPL::Object;
+use strict;
+
+use base qw(IMPL::Class::Meta);
+
+our $MemoryLeakProtection;
+my $Cleanup = 0;
+our $Debug;
+our %leaked_objects;
+
+my %cacheCTOR;
+
+
+sub new {
+    my $class = shift;
+    my $self = bless {}, ref($class) || $class;
+    
+    $self->$_(@_) foreach @{$cacheCTOR{ref $self} || cache_ctor(ref $self)};
+  
+    $self;
+}
+my $t = 0;
+sub cache_ctor {
+    my $class = shift;
+    
+    no strict 'refs';
+    my @sequence;
+    
+    my $refCTORS = *{"${class}::CTOR"}{HASH};
+      
+    foreach my $super ( @{"${class}::ISA"} ) {
+	my $superSequence = $cacheCTOR{$super} || cache_ctor($super);
+	
+	my $mapper = $refCTORS ? $refCTORS->{$super} : undef;
+	if (ref $mapper eq 'CODE') {
+	    if ($mapper == *_pass_throgh_mapper{CODE}) {
+		push @sequence,@$superSequence;
+	    } else {
+		push @sequence, sub {
+		    my $this = shift;
+		    $this->$_($mapper->(@_)) foreach @$superSequence;
+		};
+	    }
+	} else {
+	    warn "Unsupported mapper type, in '$class' for the super class '$super'" if $mapper;
+	    push @sequence, sub {
+		my $this = shift;
+		$this->$_() foreach @$superSequence;
+	    };
+	}
+    }
+    
+    push @sequence, *{"${class}::CTOR"}{CODE} if *{"${class}::CTOR"}{CODE};
+    
+    $cacheCTOR{$class} = \@sequence;
+    return \@sequence;
+}
+
+sub callCTOR {
+    my $self = shift;
+    my $class = ref $self;
+
+    $self->$_(@_) foreach @{$cacheCTOR{$class} || cache_ctor($class)};
+}
+
+sub surrogate {
+    bless {}, ref $_[0] || $_[0];
+}
+
+sub superCTOR {
+    my $this = shift;
+
+    warn "The mehod is deprecated, at " . caller;
+}
+
+sub toString {
+    my $self = shift;
+    
+    return (ref $self || $self);
+}
+
+sub DESTROY {
+    if ($MemoryLeakProtection and $Cleanup) {
+        my $this = shift;
+        warn sprintf("Object leaks: %s of type %s %s",$this->can('ToString') ? $this->ToString : $this,ref $this,UNIVERSAL::can($this,'_dump') ? $this->_dump : '');
+    }
+}
+
+sub END {
+    $Cleanup = 1;
+    $MemoryLeakProtection = 0 unless $Debug;
+}
+
+sub _pass_throgh_mapper {
+    @_;
+}
+
+sub PassThroughArgs {
+    my $class = shift;
+    $class = ref $class || $class;
+    no strict 'refs';
+    no warnings 'once';
+    ${"${class}::CTOR"}{$_} = \&_pass_throgh_mapper foreach @{"${class}::ISA"};
+}
+
+package self;
+
+our $AUTOLOAD;
+sub AUTOLOAD {
+    goto &{caller(). substr $AUTOLOAD,4};
+}
+
+package supercall;
+
+our $AUTOLOAD;
+sub AUTOLOAD {
+    my $sub;
+    my $methodName = substr $AUTOLOAD,11;
+    no strict 'refs';
+    $sub = $_->can($methodName) and $sub->(@_) foreach @{caller().'::ISA'};
+}
+
+=pod
+=h1 SYNOPSIS
+
+package Foo;
+use base qw(IMPL::Object);
+
+sub CTOR {
+    my ($this,$arg) = @_;
+    print "Foo: $arg\n";
+}
+
+package Bar;
+use base qw(IMPL::Object);
+
+sub CTOR {
+    my ($this,$arg) = @_;
+    print "Bar: $arg\n";
+}
+
+package Baz;
+use base qw(Foo Bar);
+
+our %CTOR = (
+    Foo => sub { my %args = @_; $args{Mazzi}; },
+    Bar => sub { my %args = @_; $args{Fugi}; }
+);
+
+package Composite;
+use base qw(Baz Foo Bar);
+
+our %CTOR = (
+    Foo => undef,
+    Bar => undef
+);
+
+sub CTOR {
+    my ($this,%args) = @_;
+    
+    print "Composite: $args{Text}\n";
+}
+
+package main;
+
+my $obj = new Composite(
+    Text => 'Hello World!',
+    Mazzi => 'Mazzi',
+    Fugi => 'Fugi'
+);
+
+# will print
+#
+# Foo: Mazzi
+# Bar: Fugi
+# Foo:
+# Bar:
+# Composite: Hello World!
+
+=h1 Description
+Áàçîâûé êëàññ äëÿ îáúåêòîâ. Ðåàëèçóåò ìíîæåñòâåííîå íàñëåäîâàíèå
+
+
+=h1 Members
+=cut
+
+1;
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