/[cvs]/nfo/perl/libs/Data/Mungle/Transform/Deep.pm
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revision 1.4 by joko, Thu Dec 5 13:56:49 2002 UTC revision 1.6 by jonen, Mon Dec 23 11:27:53 2002 UTC
# Line 3  Line 3 
3  #  $Id$  #  $Id$
4  #  #
5  #  $Log$  #  $Log$
6    #  Revision 1.6  2002/12/23 11:27:53  jonen
7    #  + changed behavior WATCH!
8    #
9    #  Revision 1.5  2002/12/16 19:57:54  joko
10    #  + option 'init'
11    #
12  #  Revision 1.4  2002/12/05 13:56:49  joko  #  Revision 1.4  2002/12/05 13:56:49  joko
13  #  - var_deref  #  - var_deref
14  #  + expand - more sophisticated dereferencing with callbacks using Iterate  #  + expand - more sophisticated dereferencing with callbacks using Iterate
# Line 256  sub hash2object { Line 262  sub hash2object {
262    #my $obj = $self->getObject($oid);    #my $obj = $self->getObject($oid);
263    
264    # mix changes into fresh object and save it back    # mix changes into fresh object and save it back
265    hash2object_traverse_mixin($object, $data);    hash2object_traverse_mixin($object, $data, 0, $options);
266    
267    # done in core mixin function?    # done in core mixin function?
268    #$self->{storage}->update($obj);    #$self->{storage}->update($obj);
# Line 283  sub hash2object_traverse_mixin { Line 289  sub hash2object_traverse_mixin {
289    my $object = shift;    my $object = shift;
290    my $data = shift;    my $data = shift;
291    my $bool_recursion = shift;    my $bool_recursion = shift;
292      my $options = shift;
293    
294    # clear our key - stack if we are called from user-code (non-recursively)    # clear our key - stack if we are called from user-code (non-recursively)
295    @indexstack = () if (!$bool_recursion);    @indexstack = () if (!$bool_recursion);
# Line 300  sub hash2object_traverse_mixin { Line 307  sub hash2object_traverse_mixin {
307    
308  #    print STDERR "===", "reftype: ", attributes::reftype($obj), "\n";  #    print STDERR "===", "reftype: ", attributes::reftype($obj), "\n";
309                    
310        my @fields;
311      # loop through fields of object (Tangram-object)      # loop through fields of object (Tangram-object)
312      foreach (keys %{$object}) {      @fields = keys %{$object};
313    
314        # loop through fields of to.be.injected-data (arbitrary Perl-data-structure)
315        @fields = keys %{$data} if $options->{init};
316    #    @fields = keys %{$data} if $options->{mixin};
317        
318        foreach (@fields) {
319        push @indexstack, $_;        push @indexstack, $_;
320                            
321        # determine type of object        # determine type of object
322        my $ref = ref $object->{$_};        my $ref = ref $object->{$_};
323  #      print STDERR "attrname: $_  ATTRref: $ref", "\n";  #      print STDERR "attrname: $_  ATTRref: $ref", "\n";
324        if ($ref) {        if ($ref) {
325          hash2object_traverse_mixin($object->{$_}, $data, 1);          hash2object_traverse_mixin($object->{$_}, $data, 1, $options);
326        } else {        } else {
327          my $val = getStructSlotByStringyAddress($data, \@indexstack);          my $val = getStructSlotByStringyAddress($data, \@indexstack);
328          $object->{$_} = $val;                  $object->{$_} = $val if defined $val;
329        }        }
330        pop @indexstack;        pop @indexstack;
331      }      }
# Line 342  sub hash2object_traverse_mixin { Line 356  sub hash2object_traverse_mixin {
356        push @indexstack, $i;        push @indexstack, $i;
357        my $ref = ref $_;        my $ref = ref $_;
358  #      print STDERR "attrname: $_  ATTRref: $ref", "\n";  #      print STDERR "attrname: $_  ATTRref: $ref", "\n";
359        if ($ref && $_) {  #      if ($ref && $_) {
360          hash2object_traverse_mixin($_, $data, 1);        if ($ref) {
361            hash2object_traverse_mixin($_, $data, 1, $options);
362        } else {        } else {
363          $object->[$i] = $_;          $object->[$i] = $_ if defined $_;
364        }        }
365        pop @indexstack;        pop @indexstack;
366        $i++;        $i++;
# Line 356  sub hash2object_traverse_mixin { Line 371  sub hash2object_traverse_mixin {
371    
372    
373  # this function seems to do similar stuff like these below (refexpr2perlref & co.)  # this function seems to do similar stuff like these below (refexpr2perlref & co.)
374    # TODO: maybe this mechanism can be replaced completely through some nice module from CPAN .... ?   ;-)
375  sub getStructSlotByStringyAddress {  sub getStructSlotByStringyAddress {
376    my $var = shift;    my $var = shift;
377    my $indexstack_ref = shift;    my $indexstack_ref = shift;
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