summaryrefslogtreecommitdiffstats
path: root/kalyptus/kalyptusCxxToDcopIDL.pm
blob: 1e6540a4286041571fef2dafb30e356478017377 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
#***************************************************************************
#            kalyptusCxxToDcopIDL.pm -  Generates idl from dcop headers
#                             -------------------
#    begin                : Fri Jan 25 12:00:00 2000
#    copyright            : (C) 2003 Alexander Kellett
#    email                : lypanov@kde.org
#    author               : Alexander Kellett
#***************************************************************************/

#/***************************************************************************
# *                                                                         *
# *   This program is free software; you can redistribute it and/or modify  *
# *   it under the terms of the GNU General Public License as published by  *
# *   the Free Software Foundation; either version 2 of the License, or     *
# *   (at your option) any later version.                                   *
# *                                                                         *
#***************************************************************************/

package kalyptusCxxToDcopIDL;

use File::Path;
use File::Basename;
use Carp;
use Ast;
use kdocAstUtil;
use kdocUtil;
use Iter;
use kalyptusDataDict;
use Data::Dumper;

use strict;
no strict "subs";

use vars qw/
	$libname $rootnode $outputdir $opt $debug
	$methodNumber
	%builtins %typeunion %allMethods %allTypes %enumValueToType %typedeflist %mungedTypeMap
	%skippedClasses /;

BEGIN
{

# Types supported by the StackItem union
# Key: C++ type  Value: Union field of that type
%typeunion = (
    'void*' => 's_voidp',
    'bool' => 's_bool',
    'char' => 's_char',
    'uchar' => 's_uchar',
    'short' => 's_short',
    'ushort' => 's_ushort',
    'int' => 's_int',
    'uint' => 's_uint',
    'long' => 's_long',
    'ulong' => 's_ulong',
    'float' => 's_float',
    'double' => 's_double',
    'enum' => 's_enum',
    'class' => 's_class'
);

# Mapping for iterproto, when making up the munged method names
%mungedTypeMap = (
     'QString' => '$',
     'QString*' => '$',
     'QString&' => '$',
     'QCString' => '$',
     'QCString*' => '$',
     'QCString&' => '$',
     'QByteArray' => '$',
     'QByteArray&' => '$',
     'QByteArray*' => '$',
     'char*' => '$',
     'QCOORD*' => '?',
     'QRgb*' => '?',
);

# Yes some of this is in kalyptusDataDict's ctypemap
# but that one would need to be separated (builtins vs normal classes)
%typedeflist =
(
   'signed char' => 'char',
   'unsigned char' => 'uchar',
   'signed short' => 'short',
   'unsigned short' => 'ushort',
   'signed' => 'int',
   'signed int' => 'int',
   'unsigned' => 'uint',
   'unsigned int' => 'uint',
   'signed long' => 'long',
   'unsigned long' => 'ulong',

# Anything that is not known is mapped to void*, so no need for those here anymore
#   'QWSEvent*'  =>  'void*',
#   'QDiskFont*'  =>  'void*',
#   'XEvent*'  =>  'void*',
#   'QStyleHintReturn*'  =>  'void*',
#   'FILE*'  =>  'void*',
#   'QUnknownInterface*'  =>  'void*',
#   'GDHandle'  =>  'void*',
#   '_NPStream*'  =>  'void*',
#   'QTextFormat*'  =>  'void*',
#   'QTextDocument*'  =>  'void*',
#   'QTextCursor*'  =>  'void*',
#   'QTextParag**'  =>  'void*',
#   'QTextParag*'  =>  'void*',
#   'QRemoteInterface*'  =>  'void*',
#   'QSqlRecordPrivate*'  =>  'void*',
#   'QTSMFI'  =>  'void*', # QTextStream's QTSManip
#   'const GUID&'  =>  'void*',
#   'QWidgetMapper*'  =>  'void*',
#   'MSG*'  =>  'void*',
#   'const QSqlFieldInfoList&'  =>  'void*', # QSqlRecordInfo - TODO (templates)

   'QPtrCollection::Item'  =>  'void*', # to avoid a warning

   'mode_t'  =>  'long',
   'QProcess::PID'  =>  'long',
   'size_type'  =>  'int', # QSqlRecordInfo
   'Qt::ComparisonFlags'  =>  'uint',
   'Qt::ToolBarDock'  =>  'int', # compat thing, Qt shouldn't use it
   'QIODevice::Offset'  =>  'ulong',
   'WState'  =>  'int',
   'WId'  =>  'ulong',
   'QRgb'  =>  'uint',
   'QCOORD'  =>  'int',
   'QTSMFI'  =>  'int',
   'Qt::WState'  =>  'int',
   'Qt::WFlags'  =>  'int',
   'Qt::HANDLE' => 'uint',
   'QEventLoop::ProcessEventsFlags' => 'uint',
   'QStyle::SCFlags' => 'int',
   'QStyle::SFlags' => 'int',
   'Q_INT16' => 'short',
   'Q_INT32' => 'int',
   'Q_INT8' => 'char',
   'Q_LONG' => 'long',
   'Q_UINT16' => 'ushort',
   'Q_UINT32' => 'uint',
   'Q_UINT8' => 'uchar',
   'Q_ULONG' => 'long',
);

}

sub writeDoc
{
	( $libname, $rootnode, $outputdir, $opt ) = @_;

	print STDERR "Starting writeDoc for $libname...\n";

	$debug = $main::debuggen;

	# Define QPtrCollection::Item, for resolveType
	unless ( kdocAstUtil::findRef( $rootnode, "QPtrCollection::Item" ) ) {
		my $cNode = kdocAstUtil::findRef( $rootnode, "QPtrCollection" );
		warn "QPtrCollection not found" if (!$cNode);
		my $node = Ast::New( 'Item' );
		$node->AddProp( "NodeType", "Forward" );
		$node->AddProp( "Source", $cNode->{Source} ) if ($cNode);
		kdocAstUtil::attachChild( $cNode, $node ) if ($cNode);
		$node->AddProp( "Access", "public" );
	}

	print STDERR "Preparsing...\n";

	# Preparse everything, to prepare some additional data in the classes and methods
	Iter::LocalCompounds( $rootnode, sub { preParseClass( shift ); } );

	print STDERR "Writing smokedata.cpp...\n";

	# Write out smokedata.cpp
	writeSmokeDataFile($rootnode);

	print STDERR "Writing dcopidl...\n";

	print STDOUT "<!DOCTYPE DCOP-IDL><DCOP-IDL>\n";

        print STDOUT "<SOURCE>".@{$rootnode->{Sources}}[0]->{astNodeName}."</SOURCE>\n";

	print STDOUT map { "<INCLUDE>$_</INCLUDE>\n" } reverse @main::includes_list;

	Iter::LocalCompounds( $rootnode, sub { 
	    my ($node) = @_;

            my ($methodCode, $switchCode, $incl) = generateAllMethods( $node );
            my $className = join "::", kdocAstUtil::heritage($node);

	    if ($node->{DcopExported}) {
		print STDOUT "<CLASS>\n";
		my @docs;
		if ($node->{DocNode}->{Text}) {
		    for my $blah ($node->{DocNode}->{Text}) {
			for my $blah2 (@{$blah}) {
			    push @docs, $blah2->{astNodeName} if $blah2->{NodeType} eq "DocText";
			}
		    }
		}
		if (scalar(@docs) != 0) {
		    my $doc = join "", map { "<PARA>$_</PARA>" } @docs;
		    print STDOUT "    <DOC>$doc</DOC>\n";
		}
		print STDOUT "    <NAME>$className</NAME>\n";
		print STDOUT join("\n", map { "    <SUPER>$_</SUPER>"; } grep { $_ ne "Global"; } 
			     map { 
                                my $name = $_->{astNodeName};
                                $name =~ s/</&lt;/;
                                $name =~ s/>/&gt;/;
                                my $tmpl = $_->{TmplType};
                                $tmpl =~ s/</&lt;/;
                                $tmpl =~ s/>/&gt;/;
                                $tmpl ? "$name&lt;<TYPE>$tmpl</TYPE>&gt;" : $name;
			     } @{$node->{InList}}) . "\n";
		print STDOUT $methodCode;

		print STDOUT "</CLASS>\n";
	    }
	});

	print STDOUT "</DCOP-IDL>\n";
	
	print STDERR "Done.\n";
}

=head2 preParseClass
	Called for each class
=cut
sub preParseClass
{
	my( $classNode ) = @_;
	my $className = join( "::", kdocAstUtil::heritage($classNode) );

	if( $#{$classNode->{Kids}} < 0 ||
	    $classNode->{Access} eq "private" ||
	    $classNode->{Access} eq "protected" || # e.g. QPixmap::QPixmapData
	    exists $classNode->{Tmpl} ||
	    # Don't generate standard bindings for QString, this class is handled as a native type
	    $className eq 'QString' ||
	    $className eq 'QConstString' ||
	    $className eq 'QCString' ||
	    # Don't map classes which are really arrays
	    $className eq 'QStringList' ||
            $className eq 'QCanvasItemList' ||
            $className eq 'QWidgetList' ||
            $className eq 'QObjectList' ||
	    $className eq 'QStrList' ||
	    # Those are template related
            $className eq 'QTSManip' || # cause compiler errors with several gcc versions
	    $className eq 'QGDict' ||
	    $className eq 'QGList' ||
	    $className eq 'QGVector' ||
	    $className eq 'QStrIList' ||
	    $className eq 'QStrIVec' ||
	    $className eq 'QByteArray' ||
	    $className eq 'QBitArray' ||
	    $classNode->{NodeType} eq 'union' # Skip unions for now, e.g. QPDevCmdParam
	  ) {
	    print STDERR "Skipping $className\n" if ($debug);
	    print STDERR "Skipping union $className\n" if ( $classNode->{NodeType} eq 'union');
	    $skippedClasses{$className} = 1;
	    delete $classNode->{Compound}; # Cheat, to get it excluded from Iter::LocalCompounds
	    return;
	}

	my $signalCount = 0;
	my $eventHandlerCount = 0;
	my $defaultConstructor = 'none'; #  none, public, protected or private. 'none' will become 'public'.
	my $constructorCount = 0; # total count of _all_ ctors
	# If there are ctors, we need at least one public/protected one to instanciate the class
	my $hasPublicProtectedConstructor = 0;
	# We need a public dtor to destroy the object --- ### aren't protected dtors ok too ??
	my $hasPublicDestructor = 1; # by default all classes have a public dtor!
	my $hasDestructor = 0;
	my $hasPrivatePureVirtual = 0;
	my $hasCopyConstructor = 0;
	my $hasPrivateCopyConstructor = 0;
	# Note: no need for hasPureVirtuals. $classNode{Pure} has that.

        my $doPrivate = $main::doPrivate;
	$main::doPrivate = 1;
	# Look at each class member (looking for methods and enums in particular)
	Iter::MembersByType ( $classNode, undef,
		sub {

	my( $classNode, $m ) = @_;
	my $name = $m->{astNodeName};

	if( $m->{NodeType} eq "method" ) {
	    if ( $m->{ReturnType} eq 'typedef' # QFile's EncoderFn/DecoderFn callback, very badly parsed
	       ) {
		$m->{NodeType} = 'deleted';
		next;
	    }

	    print STDERR "preParseClass: looking at $className\::$name  $m->{Params}\n" if ($debug);

	    if ( $name eq $classNode->{astNodeName} ) {
		if ( $m->{ReturnType} =~ /~/  ) {
		    # A destructor
		    $hasPublicDestructor = 0 if $m->{Access} ne 'public';
		    $hasDestructor = 1;
		} else {
		    # A constructor
		    $constructorCount++;
		    $defaultConstructor = $m->{Access} if ( $m->{Params} eq '' );
		    $hasPublicProtectedConstructor = 1 if ( $m->{Access} ne 'private' );

		    # Copy constructor?
		    if ( $#{$m->{ParamList}} == 0 ) {
			my $theArgType = @{$m->{ParamList}}[0]->{ArgType};
			if ($theArgType =~ /$className\s*\&/) {
			    $hasCopyConstructor = 1;
			    $hasPrivateCopyConstructor = 1 if ( $m->{Access} eq 'private' );
			}
		    }
		    # Hack the return type for constructors, since constructors return an object pointer
		    $m->{ReturnType} = $className."*";
		}
	    }

	    if ( $name =~ /~$classNode->{astNodeName}/ && $m->{Access} ne "private" ) { # not used
		$hasPublicDestructor = 0 if $m->{Access} ne 'public';
		$hasDestructor = 1;
	    }

	    if ( $m->{Flags} =~ "p" && $m->{Access} =~ /private/ ) {
                $hasPrivatePureVirtual = 1; # ouch, can't inherit from that one
	    }

	    # All we want from private methods is to check for virtuals, nothing else
	    next if ( $m->{Access} =~ /private/ );

	    my $argId = 0;
	    my $firstDefaultParam;
	    foreach my $arg ( @{$m->{ParamList}} ) {
		# Look for first param with a default value
		if ( defined $arg->{DefaultValue} && !defined $firstDefaultParam ) {
		    $firstDefaultParam = $argId;
		}

		if ( $arg->{ArgType} eq '...' # refuse a method with variable arguments
		     or $arg->{ArgType} eq 'image_io_handler' # QImage's callback
		     or $arg->{ArgType} eq 'DecoderFn' # QFile's callback
		     or $arg->{ArgType} eq 'EncoderFn' # QFile's callback
		     or $arg->{ArgType} =~ /bool \(\*\)\(QObject/ # QMetaObject's ctor
		     or $arg->{ArgType} eq 'QtStaticMetaObjectFunction' # QMetaObjectCleanUp's ctor with func pointer
		     or $arg->{ArgType} eq 'const QTextItem&' # ref to a private class in 3.2.0b1
		     or $arg->{ArgType} eq 'FILE*' # won't be able to handle that I think
		) {
		    $m->{NodeType} = 'deleted';
		}
		else
		{
		    # Resolve type in full, e.g. for QSessionManager::RestartHint
		    # (x_QSessionManager doesn't inherit QSessionManager)
		    $arg->{ArgType} = kalyptusDataDict::resolveType($arg->{ArgType}, $classNode, $rootnode);
		    registerType( $arg->{ArgType} );
		    $argId++;
		}
	    }
	    $m->AddProp( "FirstDefaultParam", $firstDefaultParam );
	    $m->{ReturnType} = kalyptusDataDict::resolveType($m->{ReturnType}, $classNode, $rootnode) if ($m->{ReturnType});
	    registerType( $m->{ReturnType} );
	}
	elsif( $m->{NodeType} eq "enum" ) {
	    my $fullEnumName = $className."::".$m->{astNodeName};
	    $classNode->{enumerations}{$m->{astNodeName}} = $fullEnumName
		if $m->{astNodeName} and $m->{Access} ne 'private';

	    # Define a type for this enum
	    registerType( $fullEnumName );

	    # Remember that it's an enum
	    findTypeEntry( $fullEnumName )->{isEnum} = 1;

	    #print STDERR "$fullEnumName is an enum\n";
 	}
	elsif( $m->{NodeType} eq 'var' ) {
	    my $varType = $m->{Type};
	    # We are interested in public static vars, like QColor::blue
	    if ( $varType =~ s/static\s+// && $m->{Access} ne 'private' )
	    {
		$varType =~ s/const\s+(.*)\s*&/$1/;
		$varType =~ s/\s*$//;
		print STDERR "var: $m->{astNodeName} '$varType'\n" if ($debug);

		# Register the type
		registerType( $varType );

	    } else {
		# To avoid duplicating the above test, we just get rid of any other var
		$m->{NodeType} = 'deleted';
	    }
	}
		},
		undef
	);
	$main::doPrivate = $doPrivate;

	print STDERR "$className: ctor count: $constructorCount, hasPublicProtectedConstructor: $hasPublicProtectedConstructor, hasCopyConstructor: $hasCopyConstructor:, defaultConstructor: $defaultConstructor, hasPublicDestructor: $hasPublicDestructor, hasPrivatePureVirtual:$hasPrivatePureVirtual\n" if ($debug);

	# We will derive from the class only if it has public or protected constructors.
	# (_Even_ if it has pure virtuals. But in that case the x_ class can't be instantiated either.)
	$classNode->AddProp( "BindingDerives", $hasPublicProtectedConstructor );
}


=head2 writeClassDoc

	Called by writeDoc for each series of classes to be written out

=cut

  sub writeClassDoc
  {
  }

# Generate the prototypes for a method (one per arg with a default value)
# Helper for makeprotos
sub iterproto($$$$$) {
    my $classidx = shift; # to check if a class exists
    my $method = shift;
    my $proto = shift;
    my $idx = shift;
    my $protolist = shift;

    my $argcnt = scalar @{ $method->{ParamList} } - 1;
    if($idx > $argcnt) {
	push @$protolist, $proto;
	return;
    }
    if(defined $method->{FirstDefaultParam} and $method->{FirstDefaultParam} <= $idx) {
	push @$protolist, $proto;
    }

    my $arg = $method->{ParamList}[$idx]->{ArgType};

    my $typeEntry = findTypeEntry( $arg );
    my $realType = $typeEntry->{realType};

    # A scalar ?
    $arg =~ s/\bconst\b//g;
    $arg =~ s/\s+//g;
    if($typeEntry->{isEnum} || $allTypes{$realType}{isEnum} || exists $typeunion{$realType} || exists $mungedTypeMap{$arg})
    {
	my $id = '$'; # a 'scalar
	$id = '?' if $arg =~ /[*&]{2}/;
	$id = $mungedTypeMap{$arg} if exists $mungedTypeMap{$arg};
	iterproto($classidx, $method, $proto . $id, $idx + 1, $protolist);
	return;
    }

    # A class ?
    if(exists $classidx->{$realType}) {
	iterproto($classidx, $method, $proto . '#', $idx + 1, $protolist);
	return;
    }

    # A non-scalar (reference to array or hash, undef)
    iterproto($classidx, $method, $proto . '?', $idx + 1, $protolist);
    return;
}

# Generate the prototypes for a method (one per arg with a default value)
sub makeprotos($$$) {
    my $classidx = shift;
    my $method = shift;
    my $protolist = shift;
    iterproto($classidx, $method, $method->{astNodeName}, 0, $protolist);
}

# Return the string containing the signature for this method (without return type).
# If the 2nd arg is not the size of $m->{ParamList}, this method returns a
# partial signature (this is used to handle default values).
sub methodSignature($$) {
    my $method = shift;
    my $last = shift;
    my $sig = $method->{astNodeName};
    my @argTypeList;
    my $argId = 0;
    foreach my $arg ( @{$method->{ParamList}} ) {
	last if $argId > $last;
	push @argTypeList, $arg->{ArgType};
	$argId++;
    }
    $sig .= "(". join(", ",@argTypeList) .")";
    $sig .= " const" if $method->{Flags} =~ "c";
    return $sig;
}

sub coerce_type($$$$) {
    #my $m = shift;
    my $union = shift;
    my $var = shift;
    my $type = shift;
    my $new = shift; # 1 if this is a return value, 0 for a normal param

    my $typeEntry = findTypeEntry( $type );
    my $realType = $typeEntry->{realType};

    my $unionfield = $typeEntry->{typeId};
    die "$type" unless defined( $unionfield );
    $unionfield =~ s/t_/s_/;

    $type =~ s/\s+const$//; # for 'char* const'
    $type =~ s/\s+const\s*\*$/\*/; # for 'char* const*'

    my $code = "$union.$unionfield = ";
    if($type =~ /&$/) {
	$code .= "(void*)&$var;\n";
    } elsif($type =~ /\*$/) {
	$code .= "(void*)$var;\n";
    } else {
	if ( $unionfield eq 's_class' 
		or ( $unionfield eq 's_voidp' and $type ne 'void*' )
		or $type eq 'QString' ) { # hack
	    $type =~ s/^const\s+//;
	    if($new) {
	        $code .= "(void*)new $type($var);\n";
	    } else {
	        $code .= "(void*)&$var;\n";
	    }
	} else {
	    $code .= "$var;\n";
	}
    }

    return $code;
}

# Generate the list of args casted to their real type, e.g.
# (QObject*)x[1].s_class,(QEvent*)x[2].s_class,x[3].s_int
sub makeCastedArgList
{
    my @castedList;
    my $i = 1; # The args start at x[1]. x[0] is the return value
    my $arg;
    foreach $arg (@_) {
	my $type = $arg;
	my $cast;

	my $typeEntry = findTypeEntry( $type );
	my $unionfield = $typeEntry->{typeId};
	die "$type" unless defined( $unionfield );
	$unionfield =~ s/t_/s_/;

	$type =~ s/\s+const$//; # for 'char* const'
	$type =~ s/\s+const\s*\*$/\*/; # for 'char* const*'

	my $v .= "$unionfield";
	if($type =~ s/&$//) {
	    $cast = "{($type *)}";
	} elsif($type =~ /\*$/) {
	    $cast = "$type";
        } elsif($type =~ /\(\*\)\s*\(/) { # function pointer ... (*)(...)
            $cast = "$type";
	} else {
	    if ( $unionfield eq 's_class'
		or ( $unionfield eq 's_voidp' and $type ne 'void*' )
		or $type eq 'QString' ) { # hack
	        $cast = "{*($type *)}";
	    } else {
	        $cast = "$type";
	    }
	}
	push @castedList, "<TYPE>$cast</TYPE>$v";
	$i++;
    }
    return @castedList;
}

# Adds the header for node $1 to be included in $2 if not already there
# Prints out debug stuff if $3
sub addIncludeForClass($$$)
{
    my ( $node, $addInclude, $debugMe ) = @_;
    my $sourcename = $node->{Source}->{astNodeName};
    $sourcename =~ s!.*/(.*)!$1!m;
    die "Empty source name for $node->{astNodeName}" if ( $sourcename eq '' );
    unless ( defined $addInclude->{$sourcename} ) {
	print "  Including $sourcename\n" if ($debugMe);
	$addInclude->{$sourcename} = 1;
    }
    else { print "  $sourcename already included.\n" if ($debugMe); }
}

sub checkIncludesForObject($$)
{
    my $type = shift;
    my $addInclude = shift;

    my $debugCI = 0; #$debug
    #print "checkIncludesForObject $type\n";
    $type =~ s/const\s+//;
    my $it = $type;
    if (!($it and exists $typeunion{$it}) and $type !~ /\*/
         #and $type !~ /&/  # in fact we also want refs, due to the generated code
        ) {
	$type =~ s/&//;
	print "  Detecting an object by value/ref: $type\n" if ($debugCI);
	my $node = kdocAstUtil::findRef( $rootnode, $type );
	if ($node) {
	    addIncludeForClass( $node, $addInclude, $debugCI );
	}
	else { print " No header found for $type\n" if ($debugCI); }
    }
}

sub generateMethod($$$)
{
    my( $classNode, $m, $addInclude ) = @_;	# input
    my $methodCode = '';	# output

    my $name = $m->{astNodeName}; # method name
    my @heritage = kdocAstUtil::heritage($classNode);
    my $className  = join( "::", @heritage );
    my $xClassName  = "x_" . join( "__", @heritage );

    # Check some method flags: constructor, destructor etc.
    my $flags = $m->{Flags};

    if ( !defined $flags ) {
	warn "Method ".$name.  " has no flags\n";
    }

    my $returnType = $m->{ReturnType};
    $returnType = undef if ($returnType eq 'void');

    # Don't use $className here, it's never the fully qualified (A::B) name for a ctor.
    my $isConstructor = ($name eq $classNode->{astNodeName} );
    my $isDestructor = ($returnType eq '~');

    if ($debug) {
        print STDERR " Method $name";
	print STDERR ", is DTOR" if $isDestructor;
	print STDERR ", returns $returnType" if $returnType;
	#print STDERR " ($m->{Access})";
	print STDERR "\n";
    }

    # Don't generate anything for destructors
    return if $isDestructor;

    return if ( $m->{SkipFromSwitch} ); # pure virtuals, etc.

#    # Skip internal methods, which return unknown types
#    # Hmm, the C# bindings have a list of those too.
#    return if ( $returnType =~ m/QGfx\s*\*/ );
#    return if ( $returnType eq 'CGContextRef' );
#    return if ( $returnType eq 'QWSDisplay *' );
#    # This stuff needs callback, or **
#    return if ( $name eq 'defineIOHandler' or $name eq 'qt_init_internal' );
#    # Skip casting operators, but not == < etc.
#    return if ( $name =~ /operator \w+/ );
#    # QFile's EncoderFn/DecoderFn
#    return if ( $name =~ /set[ED][ne]codingFunction/ );
#    # How to implement this? (QXmlDefaultHandler/QXmlEntityResolver::resolveEntity, needs A*&)
#    return if ( $name eq 'resolveEntity' and $className =~ /^QXml/ );
#    return if ( $className eq 'QBitArray' && $m->{Access} eq 'protected' );

    #print STDERR "Tests passed, generating.\n";

    # Detect objects returned by value
    checkIncludesForObject( $returnType, $addInclude ) if ($returnType);

    my $argId = 0;

    my @argTypeList=();

    my $args = "";

    foreach my $arg ( @{$m->{ParamList}} ) {

	print STDERR "  Param ".$arg->{astNodeName}." type: ".$arg->{ArgType}." name:".$arg->{ArgName}." default: ".$arg->{DefaultValue}."\n" if ($debug);

	my $argType = $arg->{ArgType};

	my $x_isConst = ($argType =~ s/const//);
	my $x_isRef = ($argType =~ s/&//);

	my $typeAttrs = "";
	$typeAttrs .= "  qleft=\"const\"" if $x_isConst;
	$typeAttrs .= " qright=\"&amp;\"" if $x_isRef;

	$argType =~ s/^\s*(.*?)\s*$/$1/;
	$argType =~ s/</&lt;/g;
	$argType =~ s/>/&gt;/g;

	$args .= "        <ARG><TYPE$typeAttrs>$argType</TYPE><NAME>$arg->{ArgName}</NAME></ARG>\n";

	push @argTypeList, $argType;

	# Detect objects passed by value
	checkIncludesForObject( $argType, $addInclude );
    }

#    my @castedArgList = makeCastedArgList( @argTypeList );

    my $isStatic = ($flags =~ "s"); 
    my $extra = "";
    $extra .= "static " if $isStatic || $isConstructor;

    my $qual = "";
    $qual .= " qual=\"const\"" if $flags =~ "c";

    my $this = $classNode->{BindingDerives} > 0 ? "this" : "xthis";

    # We iterate as many times as we have default params
    my $firstDefaultParam = $m->{FirstDefaultParam};
    $firstDefaultParam = scalar(@argTypeList) unless defined $firstDefaultParam;

    my $xretCode = '';
    if($returnType) {
	$xretCode .= coerce_type('x[0]', 'xret', $returnType, 1); }

    $returnType = "void" unless $returnType;
    $returnType =~ s/</&lt;/g;
    $returnType =~ s/>/&gt;/g;

    my $methodCode = "";

    my $tagType = ($flags !~ /z/) ? "FUNC" : "SIGNAL";
    my $tagAttr = "";
    $tagAttr .= " hidden=\"yes\"" if $flags =~ /y/;

    if (!$isConstructor) {
	$methodCode .= "    <$tagType$tagAttr$qual>\n";

	my @docs;
	if ($m->{DocNode}->{Text}) {
	    for my $blah ($m->{DocNode}->{Text}) {
		for my $blah2 (@{$blah}) {
		    push @docs, $blah2->{astNodeName} if $blah2->{NodeType} eq "DocText";
		}
	    }
	}
	if (scalar(@docs) != 0) {
	    my $doc = join "", map { "<PARA>$_</PARA>" } @docs;
	    $methodCode .= "        <DOC>$doc</DOC>\n";
	}

	$methodCode .= "        <TYPE>$returnType</TYPE>\n";
	$methodCode .= "        <NAME>$name</NAME>\n";
	$methodCode .= "$args";
	$methodCode .= "     </$tagType>\n";
    }

    $methodNumber++;

    return ( $methodCode, "" );
}

## Called by writeClassDoc
sub generateAllMethods
{
    my ($classNode) = @_;
    my $methodCode = '';

    my $sourcename = $classNode->{Source}->{astNodeName};
    $sourcename =~ s!.*/(.*)!$1!m;
    die "Empty source name for $classNode->{astNodeName}" if ( $sourcename eq '' );

    my %addInclude = ( $sourcename => 1 );

    # Then all methods
    Iter::MembersByType ( $classNode, undef,
			  sub {	my ($classNode, $methodNode ) = @_;

        if ( $methodNode->{NodeType} eq 'method' ) {
	    next unless $methodNode->{Flags} =~ /(d|z|y)/;
	    my ($meth, $swit) = generateMethod( $classNode, $methodNode, \%addInclude );
	    $methodCode .= $meth;
	}
			      }, undef );

    return ( $methodCode, "", \%addInclude );
}

# Known typedef? If so, apply it.
sub applyTypeDef($)
{
    my $type = shift;
    # Parse 'const' in front of it, and '*' or '&' after it
    my $prefix = $type =~ s/^const\s+// ? 'const ' : '';
    my $suffix = $type =~ s/\s*([\&\*]+)$// ? $1 : '';

    if (exists $typedeflist{$type}) {
	return $prefix.$typedeflist{$type}.$suffix;
    }
    return $prefix.$type.$suffix;
}

# Register type ($1) into %allTypes if not already there
sub registerType($$) {
    my $type = shift;
    #print "registerType: $type\n" if ($debug);

    $type =~ s/\s+const$//; # for 'char* const'
    $type =~ s/\s+const\s*\*$/\*/; # for 'char* const*'

    return if ( $type eq 'void' or $type eq '' or $type eq '~' );
    die if ( $type eq '...' );     # ouch

    # Let's register the real type, not its known equivalent
    #$type = applyTypeDef($type);

    # Enum _value_ -> get corresponding type
    if (exists $enumValueToType{$type}) {
	$type = $enumValueToType{$type};
    }

    # Already in allTypes
    if(exists $allTypes{$type}) {
        return;
    }

    die if $type eq 'QTextEdit::UndoRedoInfo::Type';
    die if $type eq '';

    my $realType = $type;

    # Look for references (&) and pointers (* or **)  - this will not handle *& correctly.
    # We do this parsing here because both the type list and iterproto need it
    if($realType =~ s/&$//) {
	$allTypes{$type}{typeFlags} = 'Smoke::tf_ref';
    }
    elsif($realType ne 'void*' && $realType =~ s/\*$//) {
	$allTypes{$type}{typeFlags} = 'Smoke::tf_ptr';
    }
    else {
	$allTypes{$type}{typeFlags} = 'Smoke::tf_stack';
    }

    if ( $realType =~ s/^const\s+// ) { # Remove 'const'
	$allTypes{$type}{typeFlags} .= ' | Smoke::tf_const';
    }

    # Apply typedefs, and store the resulting type.
    # For instance, if $type was Q_UINT16&, realType will be ushort
    $allTypes{$type}{realType} = applyTypeDef( $realType );

    # In the first phase we only create entries into allTypes.
    # The values (indexes) are calculated afterwards, once the list is full.
    $allTypes{$type}{index} = -1;
    #print STDERR "Register $type. Realtype: $realType\n" if($debug);
}

# Get type from %allTypes
# This returns a hash with {index}, {isEnum}, {typeFlags}, {realType}
# (and {typeId} after the types array is written by writeSmokeDataFile)
sub findTypeEntry($) {
    my $type = shift;
    my $typeIndex = -1;
    $type =~ s/\s+const$//; # for 'char* const'
    $type =~ s/\s+const\s*\*$/\*/; # for 'char* const*'

    return undef if ( $type =~ '~' or $type eq 'void' or $type eq '' );

    # Enum _value_ -> get corresponding type
    if (exists $enumValueToType{$type}) {
	$type = $enumValueToType{$type};
    }

    die "type not known: $type" unless defined $allTypes{$type};
    return $allTypes{ $type };
}

# List of all super-classes for a given class
sub superclass_list($)
{
    my $classNode = shift;
    my @super;
    Iter::Ancestors( $classNode, $rootnode, undef, undef, sub {
			push @super, @_[0];
			push @super, superclass_list( @_[0] );
		     }, undef );
    return @super;
}

=head2
	Write out the smokedata.cpp file containing all the arrays.
=cut

sub writeSmokeDataFile($) {
    my $rootnode = shift;

    # Make list of classes
    my %allIncludes; # list of all header files for all classes
    my @classlist;
    push @classlist, ""; # Prepend empty item for "no class"
    my %enumclasslist;
    Iter::LocalCompounds( $rootnode, sub {
	my $classNode = $_[0];
	my $className = join( "::", kdocAstUtil::heritage($classNode) );
	push @classlist, $className;
	$enumclasslist{$className}++ if keys %{$classNode->{enumerations}};
	$classNode->{ClassIndex} = $#classlist;
	addIncludeForClass( $classNode, \%allIncludes, undef );
    } );

    kdocAstUtil::dumpAst($rootnode) if ($debug);

    my %classidx = do { my $i = 0; map { $_ => $i++ } @classlist };

    my $file = "$outputdir/smokedata.cpp";
    open OUT, ">$file" or die "Couldn't create $file\n";

    # Prepare descendants information for each class
    my %descendants; # classname -> list of descendant nodes
    Iter::LocalCompounds( $rootnode, sub {
	my $classNode = shift;
	# Get _all_ superclasses (up any number of levels)
	# and store that $classNode is a descendant of $s
	my @super = superclass_list($classNode);
	for my $s (@super) {
	    my $superClassName = join( "::", kdocAstUtil::heritage($s) );
	    Ast::AddPropList( \%descendants, $superClassName, $classNode );
	}
    } );

    # Iterate over all classes, to write the xtypecast function
    Iter::LocalCompounds( $rootnode, sub {
	my $classNode = shift;
	my $className = join( "::", kdocAstUtil::heritage($classNode) );
	# @super will contain superclasses, the class itself, and all descendants
	my @super = superclass_list($classNode);
	push @super, $classNode;
        if ( defined $descendants{$className} ) {
	    push @super, @{$descendants{$className}};
	}
	my $cur = $classidx{$className};
	print OUT "      case $cur:\t//$className\n";
	print OUT "\tswitch(to) {\n";
	$cur = -1;
	for my $s (@super) {
	    my $superClassName = join( "::", kdocAstUtil::heritage($s) );
	    next if !defined $classidx{$superClassName}; # inherits from unknown class, see below
	    next if $classidx{$superClassName} == $cur;    # shouldn't happen in Qt
	    $cur = $classidx{$superClassName};
	    print OUT "\t  case $cur: return (void*)($superClassName*)($className*)xptr;\n";
	}
	print OUT "\t  default: return xptr;\n";
	print OUT "\t}\n";
    } );
    print OUT "      default: return xptr;\n";
    print OUT "    }\n";
    print OUT "}\n\n";


    # Write inheritance array
    # Imagine you have "Class : public super1, super2"
    # The inheritlist array will get 3 new items: super1, super2, 0
    my %inheritfinder;  # key = (super1, super2) -> data = (index in @inheritlist). This one allows reuse.
    my %classinherit;   # we store that index in %classinherit{className}
    # We don't actually need to store inheritlist in memory, we write it
    # directly to the file. We only need to remember its current size.
    my $inheritlistsize = 1;

    print OUT "// Group of class IDs (0 separated) used as super class lists.\n";
    print OUT "// Classes with super classes have an index into this array.\n";
    print OUT "static short ${libname}_inheritanceList[] = {\n";
    print OUT "\t0,\t// 0: (no super class)\n";
    Iter::LocalCompounds( $rootnode, sub {
	my $classNode = shift;
	my $className = join( "__", kdocAstUtil::heritage($classNode) );
	print STDERR "inheritanceList: looking at $className\n" if ($debug);

	# Make list of direct ancestors
	my @super;
	Iter::Ancestors( $classNode, $rootnode, undef, undef, sub {
			     my $superClassName = join( "::", kdocAstUtil::heritage($_[0]) );
			     push @super, $superClassName;
		    }, undef );
	# Turn that into a list of class indexes
	my $key = '';
	foreach my $superClass( @super ) {
	    if (defined $classidx{$superClass}) {
		$key .= ', ' if ( length $key > 0 );
		$key .= $classidx{$superClass};
	    }
	}
	if ( $key ne '' ) {
	    if ( !defined $inheritfinder{$key} ) {
		print OUT "\t";
		my $index = $inheritlistsize; # Index of first entry (for this group) in inheritlist
		foreach my $superClass( @super ) {
		    if (defined $classidx{$superClass}) {
			print OUT "$classidx{$superClass}, ";
			$inheritlistsize++;
		    }
		}
		$inheritlistsize++;
		my $comment = join( ", ", @super );
		print OUT "0,\t// $index: $comment\n";
		$inheritfinder{$key} = $index;
	    }
	    $classinherit{$className} = $inheritfinder{$key};
	} else { # No superclass
	    $classinherit{$className} = 0;
	}
    } );
    print OUT "};\n\n";


    print OUT "// These are the xenum functions for manipulating enum pointers\n";
    for my $className (keys %enumclasslist) {
	my $c = $className;
	$c =~ s/::/__/g;
	print OUT "void xenum_$c\(Smoke::EnumOperation, Smoke::Index, void*&, long&);\n";
    }
    print OUT "\n";
    print OUT "// Those are the xcall functions defined in each x_*.cpp file, for dispatching method calls\n";
    my $firstClass = 1;
    for my $className (@classlist) {
	if ($firstClass) {
	    $firstClass = 0;
	    next;
	}
	my $c = $className;   # make a copy
	$c =~ s/::/__/g;
	print OUT "void xcall_$c\(Smoke::Index, void*, Smoke::Stack);\n";
    }
    print OUT "\n";

    # Write class list afterwards because it needs offsets to the inheritance array.
    print OUT "// List of all classes\n";
    print OUT "// Name, index into inheritanceList, method dispatcher, enum dispatcher, class flags\n";
    print OUT "static Smoke::Class ${libname}_classes[] = {\n";
    my $firstClass = 1;
    Iter::LocalCompounds( $rootnode, sub {
	my $classNode = shift;
	my $className = join( "__", kdocAstUtil::heritage($classNode) );

	if ($firstClass) {
	    $firstClass = 0;
	    print OUT "\t{ 0L, 0, 0, 0, 0 }, \t// 0 (no class)\n";
	}
	my $c = $className;
	$c =~ s/::/__/g;
	my $xcallFunc = "xcall_$c";
	my $xenumFunc = "0";
	$xenumFunc = "xenum_$c" if exists $enumclasslist{$className};
	# %classinherit needs Foo__Bar, not Foo::Bar?
	die "problem with $className" unless defined $classinherit{$c};

	my $xClassFlags = 0;
	$xClassFlags =~ s/0\|//; # beautify
	print OUT "\t{ \"$className\", $classinherit{$c}, $xcallFunc, $xenumFunc, $xClassFlags }, \t//$classidx{$className}\n";
    } );
    print OUT "};\n\n";


    print OUT "// List of all types needed by the methods (arguments and return values)\n";
    print OUT "// Name, class ID if arg is a class, and TypeId\n";
    print OUT "static Smoke::Type ${libname}_types[] = {\n";
    my $typeCount = 0;
    $allTypes{''}{index} = 0; # We need an "item 0"
    for my $type (sort keys %allTypes) {
	$allTypes{$type}{index} = $typeCount;      # Register proper index in allTypes
	if ( $typeCount == 0 ) {
	    print OUT "\t{ 0, 0, 0 },\t//0 (no type)\n";
	    $typeCount++;
	    next;
	}
	my $isEnum = $allTypes{$type}{isEnum};
	my $typeId;
	my $typeFlags = $allTypes{$type}{typeFlags};
	my $realType = $allTypes{$type}{realType};
	die "$type" if !defined $typeFlags;
	die "$realType" if $realType =~ /\(/;
	# First write the name
	print OUT "\t{ \"$type\", ";
	# Then write the classId (and find out the typeid at the same time)
	if(exists $classidx{$realType}) { # this one first, we want t_class for QBlah*
	    $typeId = 't_class';
	    print OUT "$classidx{$realType}, ";
	}
	elsif($type =~ /&$/ || $type =~ /\*$/) {
	    $typeId = 't_voidp';
	    print OUT "0, "; # no classId
	}
	elsif($isEnum || $allTypes{$realType}{isEnum}) {
	    $typeId = 't_enum';
	    if($realType =~ /(.*)::/) {
		my $c = $1;
		if($classidx{$c}) {
		    print OUT "$classidx{$c}, ";
		} else {
		    print OUT "0 /* unknown class $c */, ";
		}
	    } else {
		print OUT "0 /* unknown $realType */, "; # no classId
	    }
	}
	else {
	    $typeId = $typeunion{$realType};
	    if (defined $typeId) {
		$typeId =~ s/s_/t_/; # from s_short to t_short for instance
	    }
	    else {
		# Not a known class - ouch, this happens quite a lot
		# (private classes, typedefs, template-based types, etc)
		if ( $skippedClasses{$realType} ) {
#		    print STDERR "$realType has been skipped, using t_voidp for it\n";
		} else {
		    unless( $realType =~ /</ ) { # Don't warn for template stuff...
			print STDERR "$realType isn't a known type (type=$type)\n";
		    }
		}
		$typeId = 't_voidp'; # Unknown -> map to a void *
	    }
	    print OUT "0, "; # no classId
	}
	# Then write the flags
	die "$type" if !defined $typeId;
	print OUT "Smoke::$typeId | $typeFlags },";
	print OUT "\t//$typeCount\n";
	$typeCount++;
	# Remember it for coerce_type
	$allTypes{$type}{typeId} = $typeId;
    }

    close OUT;
}

1;