1 ###################################################
2 # Samba4 NDR info tree generator
3 # Copyright tridge@samba.org 2000-2003
4 # Copyright tpot@samba.org 2001
5 # Copyright jelmer@samba.org 2004-2006
6 # released under the GNU GPL
12 Parse::Pidl::NDR - NDR parsing information generator
16 Return a table describing the order in which the parts of an element
27 Jelmer Vernooij <jelmer@samba.org>
31 package Parse::Pidl::NDR;
34 use vars qw($VERSION);
37 @EXPORT = qw(GetPrevLevel GetNextLevel ContainsDeferred ContainsPipe ContainsString);
38 @EXPORT_OK = qw(GetElementLevelTable ParseElement ReturnTypeElement ValidElement align_type mapToScalar ParseType can_contain_deferred is_charset_array);
41 use Parse::Pidl qw(warning fatal);
42 use Parse::Pidl::Typelist qw(hasType getType typeIs expandAlias mapScalarType is_fixed_size_scalar);
43 use Parse::Pidl::Util qw(has_property property_matches);
45 # Alignment of the built-in scalar types
46 my $scalar_alignment = {
67 'string_array' => 4, #???
79 'wrepl_nbt_name' => 4,
81 'ipv6address' => 4, #16?
86 sub GetElementLevelTable($$$)
88 my ($e, $pointer_default, $ms_union) = @_;
92 my @bracket_array = ();
97 if (has_property($e, "size_is")) {
98 @size_is = split /,/, has_property($e, "size_is");
101 if (has_property($e, "length_is")) {
102 @length_is = split /,/, has_property($e, "length_is");
105 if (defined($e->{ARRAY_LEN})) {
106 @bracket_array = @{$e->{ARRAY_LEN}};
109 if (has_property($e, "out")) {
112 if (has_property($e, "string") and not has_property($e, "in")) { $needptrs++; }
113 if ($#bracket_array >= 0) { $needptrs = 0; }
115 warning($e, "[out] argument `$e->{NAME}' not a pointer") if ($needptrs > $e->{POINTERS});
118 my $allow_pipe = ($e->{PARENT}->{TYPE} eq "FUNCTION");
119 my $is_pipe = typeIs($e->{TYPE}, "PIPE");
122 if (not $allow_pipe) {
123 fatal($e, "argument `$e->{NAME}' is a pipe and not allowed on $e->{PARENT}->{TYPE}");
126 if ($e->{POINTERS} > 1) {
127 fatal($e, "$e->{POINTERS} are not allowed on pipe element $e->{NAME}");
130 if ($e->{POINTERS} < 0) {
131 fatal($e, "pipe element $e->{NAME} needs pointer");
134 if ($e->{POINTERS} == 1 and pointer_type($e) ne "ref") {
135 fatal($e, "pointer should be 'ref' on pipe element $e->{NAME}");
138 if (scalar(@size_is) > 0) {
139 fatal($e, "size_is() on pipe element");
142 if (scalar(@length_is) > 0) {
143 fatal($e, "length_is() on pipe element");
146 if (scalar(@bracket_array) > 0) {
147 fatal($e, "brackets on pipe element");
150 if (defined(has_property($e, "subcontext"))) {
151 fatal($e, "subcontext on pipe element");
154 if (has_property($e, "switch_is")) {
155 fatal($e, "switch_is on pipe element");
158 if (can_contain_deferred($e->{TYPE})) {
159 fatal($e, "$e->{TYPE} can_contain_deferred - not allowed on pipe element");
163 # Parse the [][][][] style array stuff
164 for my $i (0 .. $#bracket_array) {
165 my $d = $bracket_array[$#bracket_array - $i];
168 my $is_surrounding = 0;
170 my $is_conformant = 0;
178 if ($size = shift @size_is) {
179 if ($e->{POINTERS} < 1 and has_property($e, "string")) {
181 delete($e->{PROPERTIES}->{string});
183 } elsif ((scalar(@size_is) == 0) and has_property($e, "string")) {
185 delete($e->{PROPERTIES}->{string});
187 fatal($e, "Must specify size_is() for conformant array!")
190 if (($length = shift @length_is) or $is_string) {
196 if ($e == $e->{PARENT}->{ELEMENTS}[-1]
197 and $e->{PARENT}->{TYPE} ne "FUNCTION") {
202 $is_fixed = 1 if (not $is_conformant and Parse::Pidl::Util::is_constant($size));
203 $is_inline = 1 if (not $is_conformant and not Parse::Pidl::Util::is_constant($size));
205 if ($i == 0 and $is_fixed and has_property($e, "string")) {
209 delete($e->{PROPERTIES}->{string});
212 if (has_property($e, "to_null")) {
219 LENGTH_IS => $length,
220 IS_DEFERRED => $is_deferred,
221 IS_SURROUNDING => $is_surrounding,
222 IS_ZERO_TERMINATED => $is_string,
223 IS_VARYING => $is_varying,
224 IS_CONFORMANT => $is_conformant,
225 IS_FIXED => $is_fixed,
226 IS_INLINE => $is_inline,
227 IS_TO_NULL => $is_to_null
231 # Next, all the pointers
232 foreach my $i (1..$e->{POINTERS}) {
233 my $level = "EMBEDDED";
234 # Top level "ref" pointers do not have a referrent identifier
235 $level = "TOP" if ($i == 1 and $e->{PARENT}->{TYPE} eq "FUNCTION");
239 # Only the first level gets the pointer type from the
240 # pointer property, the others get them from
241 # the pointer_default() interface property
243 # see http://msdn2.microsoft.com/en-us/library/aa378984(VS.85).aspx
244 # (Here they talk about the rightmost pointer, but testing shows
245 # they mean the leftmost pointer.)
249 $pt = pointer_type($e);
251 $is_deferred = 1 if ($pt ne "ref" and $e->{PARENT}->{TYPE} eq "FUNCTION");
252 $pt = $pointer_default;
258 POINTER_INDEX => $pointer_idx,
259 IS_DEFERRED => "$is_deferred",
263 warning($e, "top-level \[out\] pointer `$e->{NAME}' is not a \[ref\] pointer")
264 if ($i == 1 and $pt ne "ref" and
265 $e->{PARENT}->{TYPE} eq "FUNCTION" and
266 not has_property($e, "in"));
270 # everything that follows will be deferred
271 $is_deferred = 1 if ($level ne "TOP");
273 my $array_size = shift @size_is;
280 if ($array_length = shift @length_is) {
283 $array_length = $array_size;
288 if (scalar(@size_is) == 0 and has_property($e, "string") and
289 $i == $e->{POINTERS}) {
291 $is_varying = $is_conformant = has_property($e, "noheader")?0:1;
292 delete($e->{PROPERTIES}->{string});
295 if ($array_size or $is_string) {
298 SIZE_IS => $array_size,
299 LENGTH_IS => $array_length,
300 IS_DEFERRED => $is_deferred,
302 IS_ZERO_TERMINATED => $is_string,
303 IS_VARYING => $is_varying,
304 IS_CONFORMANT => $is_conformant,
317 CONTAINS_DEFERRED => 0,
321 foreach (@$order) { $_->{LEVEL_INDEX} = $i; $i+=1; }
326 if (defined(has_property($e, "subcontext"))) {
327 my $hdr_size = has_property($e, "subcontext");
328 my $subsize = has_property($e, "subcontext_size");
329 if (not defined($subsize)) {
334 TYPE => "SUBCONTEXT",
335 HEADER_SIZE => $hdr_size,
336 SUBCONTEXT_SIZE => $subsize,
337 IS_DEFERRED => $is_deferred,
338 COMPRESSION => has_property($e, "compression"),
342 if (my $switch = has_property($e, "switch_is")) {
345 SWITCH_IS => $switch,
346 IS_DEFERRED => $is_deferred
350 if (scalar(@size_is) > 0) {
351 fatal($e, "size_is() on non-array element");
354 if (scalar(@length_is) > 0) {
355 fatal($e, "length_is() on non-array element");
358 if (has_property($e, "string")) {
359 fatal($e, "string() attribute on non-array element");
364 DATA_TYPE => $e->{TYPE},
365 IS_DEFERRED => $is_deferred,
366 CONTAINS_DEFERRED => can_contain_deferred($e->{TYPE}),
367 IS_SURROUNDING => 0 #FIXME
371 foreach (@$order) { $_->{LEVEL_INDEX} = $i; $i+=1; }
376 sub GetTypedefLevelTable($$$$)
378 my ($e, $data, $pointer_default, $ms_union) = @_;
387 foreach (@$order) { $_->{LEVEL_INDEX} = $i; $i+=1; }
392 #####################################################################
393 # see if a type contains any deferred data
394 sub can_contain_deferred($)
396 sub can_contain_deferred($);
399 return 1 unless (hasType($type)); # assume the worst
401 $type = getType($type);
403 return 0 if (Parse::Pidl::Typelist::is_scalar($type));
405 return can_contain_deferred($type->{DATA}) if ($type->{TYPE} eq "TYPEDEF");
407 return 0 unless defined($type->{ELEMENTS});
409 foreach (@{$type->{ELEMENTS}}) {
410 return 1 if ($_->{POINTERS});
411 return 1 if (can_contain_deferred ($_->{TYPE}));
421 return undef unless $e->{POINTERS};
423 return "ref" if (has_property($e, "ref"));
424 return "full" if (has_property($e, "ptr"));
425 return "sptr" if (has_property($e, "sptr"));
426 return "unique" if (has_property($e, "unique"));
427 return "relative" if (has_property($e, "relative"));
428 return "relative_short" if (has_property($e, "relative_short"));
429 return "ignore" if (has_property($e, "ignore"));
434 #####################################################################
435 # work out the correct alignment for a structure or union
436 sub find_largest_alignment($)
441 for my $e (@{$s->{ELEMENTS}}) {
444 if ($e->{POINTERS}) {
445 # this is a hack for NDR64
446 # the NDR layer translates this into
447 # an alignment of 4 for NDR and 8 for NDR64
449 } elsif (has_property($e, "subcontext")) {
451 } elsif (has_property($e, "transmit_as")) {
452 $a = align_type($e->{PROPERTIES}->{transmit_as});
454 $a = align_type($e->{TYPE});
457 $align = $a if ($align < $a);
463 #####################################################################
470 if (ref($e) eq "HASH" and $e->{TYPE} eq "SCALAR") {
471 return $scalar_alignment->{$e->{NAME}};
474 return 0 if ($e eq "EMPTY");
476 unless (hasType($e)) {
477 # it must be an external type - all we can do is guess
478 # warning($e, "assuming alignment of unknown type '$e' is 4");
482 my $dt = getType($e);
484 if ($dt->{TYPE} eq "TYPEDEF") {
485 return align_type($dt->{DATA});
486 } elsif ($dt->{TYPE} eq "CONFORMANCE") {
487 return $dt->{DATA}->{ALIGN};
488 } elsif ($dt->{TYPE} eq "ENUM") {
489 return align_type(Parse::Pidl::Typelist::enum_type_fn($dt));
490 } elsif ($dt->{TYPE} eq "BITMAP") {
491 return align_type(Parse::Pidl::Typelist::bitmap_type_fn($dt));
492 } elsif (($dt->{TYPE} eq "STRUCT") or ($dt->{TYPE} eq "UNION")) {
493 # Struct/union without body: assume 4
494 return 4 unless (defined($dt->{ELEMENTS}));
495 return find_largest_alignment($dt);
496 } elsif (($dt->{TYPE} eq "PIPE")) {
500 die("Unknown data type type $dt->{TYPE}");
503 sub ParseElement($$$)
505 my ($e, $pointer_default, $ms_union) = @_;
507 $e->{TYPE} = expandAlias($e->{TYPE});
509 if (ref($e->{TYPE}) eq "HASH") {
510 $e->{TYPE} = ParseType($e->{TYPE}, $pointer_default, $ms_union);
516 PROPERTIES => $e->{PROPERTIES},
517 LEVELS => GetElementLevelTable($e, $pointer_default, $ms_union),
518 REPRESENTATION_TYPE => ($e->{PROPERTIES}->{represent_as} or $e->{TYPE}),
519 ALIGN => align_type($e->{TYPE}),
527 my $name = $e->{NAME};
529 return $name if defined($name);
531 my $parent = $e->{PARENT};
532 my $parent_name = undef;
534 while (not defined($parent_name)) {
535 last unless defined($parent);
537 $parent_name = $parent->{NAME};
538 $parent = $parent->{PARENT};
541 $parent_name = "global" unless defined($parent_name);
542 $name = "__pidl_".$e->{TYPE}."_".$parent_name."_".$e->{LINE};
549 my ($struct, $pointer_default, $ms_union) = @_;
551 my $surrounding = undef;
552 my $name = ParseName($struct);
557 SURROUNDING_ELEMENT => undef,
559 PROPERTIES => $struct->{PROPERTIES},
562 } unless defined($struct->{ELEMENTS});
564 CheckPointerTypes($struct, $pointer_default);
566 foreach my $x (@{$struct->{ELEMENTS}})
568 my $e = ParseElement($x, $pointer_default, $ms_union);
569 if ($x != $struct->{ELEMENTS}[-1] and
570 $e->{LEVELS}[0]->{IS_SURROUNDING}) {
571 fatal($x, "conformant member not at end of struct");
576 my $e = $elements[-1];
577 if (defined($e) and defined($e->{LEVELS}[0]->{IS_SURROUNDING}) and
578 $e->{LEVELS}[0]->{IS_SURROUNDING}) {
582 if (defined $e->{TYPE} && $e->{TYPE} eq "string"
583 && property_matches($e, "flag", ".*LIBNDR_FLAG_STR_CONFORMANT.*")) {
584 $surrounding = $struct->{ELEMENTS}[-1];
587 my $align = align_type($name);
592 SURROUNDING_ELEMENT => $surrounding,
593 ELEMENTS => \@elements,
594 PROPERTIES => $struct->{PROPERTIES},
602 my ($e, $pointer_default, $ms_union) = @_;
604 my $is_ms_union = $ms_union;
605 $is_ms_union = 1 if has_property($e, "ms_union");
607 my $switch_type = has_property($e, "switch_type");
608 unless (defined($switch_type)) { $switch_type = "uint32"; }
609 if (has_property($e, "nodiscriminant")) { $switch_type = undef; }
610 my $name = ParseName($e);
615 SWITCH_TYPE => $switch_type,
617 PROPERTIES => $e->{PROPERTIES},
618 HAS_DEFAULT => $hasdefault,
619 IS_MS_UNION => $is_ms_union,
622 } unless defined($e->{ELEMENTS});
624 CheckPointerTypes($e, $pointer_default);
626 foreach my $x (@{$e->{ELEMENTS}})
629 if ($x->{TYPE} eq "EMPTY") {
630 $t = { TYPE => "EMPTY" };
632 $t = ParseElement($x, $pointer_default, $ms_union);
634 if (has_property($x, "default")) {
635 $t->{CASE} = "default";
637 } elsif (defined($x->{PROPERTIES}->{case})) {
638 $t->{CASE} = "case $x->{PROPERTIES}->{case}";
640 die("Union element $x->{NAME} has neither default nor case property");
645 my $align = align_type($name);
650 SWITCH_TYPE => $switch_type,
651 ELEMENTS => \@elements,
652 PROPERTIES => $e->{PROPERTIES},
653 HAS_DEFAULT => $hasdefault,
654 IS_MS_UNION => $is_ms_union,
662 my ($e, $pointer_default, $ms_union) = @_;
663 my $name = ParseName($e);
668 BASE_TYPE => Parse::Pidl::Typelist::enum_type_fn($e),
669 ELEMENTS => $e->{ELEMENTS},
670 PROPERTIES => $e->{PROPERTIES},
677 my ($e, $pointer_default, $ms_union) = @_;
678 my $name = ParseName($e);
683 BASE_TYPE => Parse::Pidl::Typelist::bitmap_type_fn($e),
684 ELEMENTS => $e->{ELEMENTS},
685 PROPERTIES => $e->{PROPERTIES},
692 my ($pipe, $pointer_default, $ms_union) = @_;
694 my $pname = $pipe->{NAME};
695 $pname = $pipe->{PARENT}->{NAME} unless defined $pname;
697 if (not defined($pipe->{PROPERTIES})
698 and defined($pipe->{PARENT}->{PROPERTIES})) {
699 $pipe->{PROPERTIES} = $pipe->{PARENT}->{PROPERTIES};
702 if (ref($pipe->{DATA}) eq "HASH") {
703 if (not defined($pipe->{DATA}->{PROPERTIES})
704 and defined($pipe->{PROPERTIES})) {
705 $pipe->{DATA}->{PROPERTIES} = $pipe->{PROPERTIES};
709 my $struct = ParseStruct($pipe->{DATA}, $pointer_default, $ms_union);
710 $struct->{ALIGN} = 5;
711 $struct->{NAME} = "$pname\_chunk";
713 # 'count' is element [0] and 'array' [1]
714 my $e = $struct->{ELEMENTS}[1];
715 # level [0] is of type "ARRAY"
716 my $l = $e->{LEVELS}[1];
718 # here we check that pipe elements have a fixed size type
719 while (defined($l)) {
721 $l = GetNextLevel($e, $cl);
722 if ($cl->{TYPE} ne "DATA") {
723 fatal($pipe, el_name($pipe) . ": pipe contains non DATA level");
726 # for now we only support scalars
727 next if is_fixed_size_scalar($cl->{DATA_TYPE});
729 fatal($pipe, el_name($pipe) . ": pipe contains non fixed size type[$cl->{DATA_TYPE}]");
734 NAME => $pipe->{NAME},
736 PROPERTIES => $pipe->{PROPERTIES},
743 my ($d, $pointer_default, $ms_union) = @_;
746 STRUCT => \&ParseStruct,
747 UNION => \&ParseUnion,
749 BITMAP => \&ParseBitmap,
750 TYPEDEF => \&ParseTypedef,
752 }->{$d->{TYPE}}->($d, $pointer_default, $ms_union);
759 my ($d, $pointer_default, $ms_union) = @_;
763 if (ref($d->{DATA}) eq "HASH") {
764 if (defined($d->{DATA}->{PROPERTIES})
765 and not defined($d->{PROPERTIES})) {
766 $d->{PROPERTIES} = $d->{DATA}->{PROPERTIES};
769 $data = ParseType($d->{DATA}, $pointer_default, $ms_union);
770 $data->{ALIGN} = align_type($d->{NAME});
772 $data = getType($d->{DATA});
778 PROPERTIES => $d->{PROPERTIES},
779 LEVELS => GetTypedefLevelTable($d, $data, $pointer_default, $ms_union),
792 sub ParseFunction($$$$)
794 my ($ndr,$d,$opnum,$ms_union) = @_;
797 my $thisopnum = undef;
799 CheckPointerTypes($d, "ref");
801 if (not defined($d->{PROPERTIES}{noopnum})) {
802 $thisopnum = ${$opnum};
806 foreach my $x (@{$d->{ELEMENTS}}) {
807 my $e = ParseElement($x, $ndr->{PROPERTIES}->{pointer_default}, $ms_union);
808 push (@{$e->{DIRECTION}}, "in") if (has_property($x, "in"));
809 push (@{$e->{DIRECTION}}, "out") if (has_property($x, "out"));
811 push (@elements, $e);
814 if ($d->{RETURN_TYPE} ne "void") {
815 $rettype = expandAlias($d->{RETURN_TYPE});
822 RETURN_TYPE => $rettype,
823 PROPERTIES => $d->{PROPERTIES},
824 ELEMENTS => \@elements,
829 sub ReturnTypeElement($)
833 return undef unless defined($fn->{RETURN_TYPE});
837 "TYPE" => $fn->{RETURN_TYPE},
838 "PROPERTIES" => undef,
841 "FILE" => $fn->{FILE},
842 "LINE" => $fn->{LINE},
845 return ParseElement($e, 0, 0);
848 sub CheckPointerTypes($$)
850 my ($s,$default) = @_;
852 return unless defined($s->{ELEMENTS});
854 foreach my $e (@{$s->{ELEMENTS}}) {
855 if ($e->{POINTERS} and not defined(pointer_type($e))) {
856 $e->{PROPERTIES}->{$default} = '1';
861 sub FindNestedTypes($$)
863 sub FindNestedTypes($$);
866 return unless defined($t->{ELEMENTS});
867 return if ($t->{TYPE} eq "ENUM");
868 return if ($t->{TYPE} eq "BITMAP");
870 foreach (@{$t->{ELEMENTS}}) {
871 if (ref($_->{TYPE}) eq "HASH") {
872 push (@$l, $_->{TYPE}) if (defined($_->{TYPE}->{NAME}));
873 FindNestedTypes($l, $_->{TYPE});
878 sub ParseInterface($)
888 $ms_union = 1 if has_property($idl, "ms_union");
890 if (not has_property($idl, "pointer_default")) {
891 # MIDL defaults to "ptr" in DCE compatible mode (/osf)
892 # and "unique" in Microsoft Extensions mode (default)
893 $idl->{PROPERTIES}->{pointer_default} = "unique";
896 foreach my $d (@{$idl->{DATA}}) {
897 if ($d->{TYPE} eq "FUNCTION") {
898 push (@functions, ParseFunction($idl, $d, \$opnum, $ms_union));
899 } elsif ($d->{TYPE} eq "CONST") {
900 push (@consts, ParseConst($idl, $d));
902 push (@types, ParseType($d, $idl->{PROPERTIES}->{pointer_default}, $ms_union));
903 FindNestedTypes(\@types, $d);
909 if(defined $idl->{PROPERTIES}->{version}) {
910 my @if_version = split(/\./, $idl->{PROPERTIES}->{version});
911 if ($if_version[0] == $idl->{PROPERTIES}->{version}) {
912 $version = $idl->{PROPERTIES}->{version};
914 $version = $if_version[1] << 16 | $if_version[0];
918 # If no endpoint is set, default to the interface name as a named pipe
919 if (!defined $idl->{PROPERTIES}->{endpoint}) {
920 push @endpoints, "\"ncacn_np:[\\\\pipe\\\\" . $idl->{NAME} . "]\"";
922 @endpoints = split /,/, $idl->{PROPERTIES}->{endpoint};
926 NAME => $idl->{NAME},
927 UUID => lc(has_property($idl, "uuid")),
930 PROPERTIES => $idl->{PROPERTIES},
931 FUNCTIONS => \@functions,
934 ENDPOINTS => \@endpoints,
939 # Convert a IDL tree to a NDR tree
940 # Gives a result tree describing all that's necessary for easily generating
941 # NDR parsers / generators
946 return undef unless (defined($idl));
948 Parse::Pidl::NDR::Validate($idl);
953 ($_->{TYPE} eq "CPP_QUOTE") && push(@ndr, $_);
954 ($_->{TYPE} eq "INTERFACE") && push(@ndr, ParseInterface($_));
955 ($_->{TYPE} eq "IMPORT") && push(@ndr, $_);
968 foreach my $l (@{$e->{LEVELS}}) {
969 return $l if ($seen);
970 ($seen = 1) if ($l == $fl);
981 foreach my $l (@{$e->{LEVELS}}) {
982 (return $prev) if ($l == $fl);
989 sub ContainsString($)
993 if (property_matches($e, "flag", ".*STR_NULLTERM.*")) {
996 if (exists($e->{LEVELS}) and $e->{LEVELS}->[0]->{TYPE} eq "ARRAY" and
997 ($e->{LEVELS}->[0]->{IS_FIXED} or $e->{LEVELS}->[0]->{IS_INLINE}) and
998 has_property($e, "charset"))
1003 foreach my $l (@{$e->{LEVELS}}) {
1004 return 1 if ($l->{TYPE} eq "ARRAY" and $l->{IS_ZERO_TERMINATED});
1006 if (property_matches($e, "charset", ".*DOS.*")) {
1013 sub ContainsDeferred($$)
1017 return 1 if ($l->{CONTAINS_DEFERRED});
1019 while ($l = GetNextLevel($e,$l))
1021 return 1 if ($l->{IS_DEFERRED});
1022 return 1 if ($l->{CONTAINS_DEFERRED});
1028 sub ContainsPipe($$)
1032 return 1 if ($l->{TYPE} eq "PIPE");
1034 while ($l = GetNextLevel($e,$l))
1036 return 1 if ($l->{TYPE} eq "PIPE");
1045 my $name = "<ANONYMOUS>";
1047 $name = $e->{NAME} if defined($e->{NAME});
1049 if (defined($e->{PARENT}) and defined($e->{PARENT}->{NAME})) {
1050 return "$e->{PARENT}->{NAME}.$name";
1053 if (defined($e->{PARENT}) and
1054 defined($e->{PARENT}->{PARENT}) and
1055 defined($e->{PARENT}->{PARENT}->{NAME})) {
1056 return "$e->{PARENT}->{PARENT}->{NAME}.$name";
1062 ###################################
1063 # find a sibling var in a structure
1064 sub find_sibling($$)
1067 my($fn) = $e->{PARENT};
1069 if ($name =~ /\*(.*)/) {
1073 for my $e2 (@{$fn->{ELEMENTS}}) {
1074 return $e2 if ($e2->{NAME} eq $name);
1080 my %property_list = (
1082 "helpstring" => ["INTERFACE", "FUNCTION"],
1083 "version" => ["INTERFACE"],
1084 "uuid" => ["INTERFACE"],
1085 "endpoint" => ["INTERFACE"],
1086 "pointer_default" => ["INTERFACE"],
1087 "helper" => ["INTERFACE"],
1088 "pyhelper" => ["INTERFACE"],
1089 "authservice" => ["INTERFACE"],
1090 "restricted" => ["INTERFACE"],
1091 "no_srv_register" => ["INTERFACE"],
1094 "object" => ["INTERFACE"],
1095 "local" => ["INTERFACE", "FUNCTION"],
1096 "iid_is" => ["ELEMENT"],
1097 "call_as" => ["FUNCTION"],
1098 "idempotent" => ["FUNCTION"],
1101 "noopnum" => ["FUNCTION"],
1102 "in" => ["ELEMENT"],
1103 "out" => ["ELEMENT"],
1106 "ref" => ["ELEMENT", "TYPEDEF"],
1107 "ptr" => ["ELEMENT", "TYPEDEF"],
1108 "unique" => ["ELEMENT", "TYPEDEF"],
1109 "ignore" => ["ELEMENT"],
1110 "relative" => ["ELEMENT", "TYPEDEF"],
1111 "relative_short" => ["ELEMENT", "TYPEDEF"],
1112 "null_is_ffffffff" => ["ELEMENT"],
1113 "relative_base" => ["TYPEDEF", "STRUCT", "UNION"],
1115 "gensize" => ["TYPEDEF", "STRUCT", "UNION"],
1116 "value" => ["ELEMENT"],
1117 "flag" => ["ELEMENT", "TYPEDEF", "STRUCT", "UNION", "ENUM", "BITMAP", "PIPE"],
1120 "public" => ["FUNCTION", "TYPEDEF", "STRUCT", "UNION", "ENUM", "BITMAP", "PIPE"],
1121 "nopush" => ["FUNCTION", "TYPEDEF", "STRUCT", "UNION", "ENUM", "BITMAP", "PIPE"],
1122 "nopull" => ["FUNCTION", "TYPEDEF", "STRUCT", "UNION", "ENUM", "BITMAP", "PIPE"],
1123 "nosize" => ["FUNCTION", "TYPEDEF", "STRUCT", "UNION", "ENUM", "BITMAP"],
1124 "noprint" => ["FUNCTION", "TYPEDEF", "STRUCT", "UNION", "ENUM", "BITMAP", "ELEMENT", "PIPE"],
1125 "nopython" => ["FUNCTION", "TYPEDEF", "STRUCT", "UNION", "ENUM", "BITMAP"],
1126 "todo" => ["FUNCTION"],
1127 "skip" => ["ELEMENT"],
1128 "skip_noinit" => ["ELEMENT"],
1131 "switch_is" => ["ELEMENT"],
1132 "switch_type" => ["ELEMENT", "UNION"],
1133 "nodiscriminant" => ["UNION"],
1134 "ms_union" => ["INTERFACE", "UNION"],
1135 "case" => ["ELEMENT"],
1136 "default" => ["ELEMENT"],
1138 "represent_as" => ["ELEMENT"],
1139 "transmit_as" => ["ELEMENT"],
1142 "subcontext" => ["ELEMENT"],
1143 "subcontext_size" => ["ELEMENT"],
1144 "compression" => ["ELEMENT"],
1147 "enum8bit" => ["ENUM"],
1148 "enum16bit" => ["ENUM"],
1149 "v1_enum" => ["ENUM"],
1152 "bitmap8bit" => ["BITMAP"],
1153 "bitmap16bit" => ["BITMAP"],
1154 "bitmap32bit" => ["BITMAP"],
1155 "bitmap64bit" => ["BITMAP"],
1158 "range" => ["ELEMENT", "PIPE"],
1159 "size_is" => ["ELEMENT"],
1160 "string" => ["ELEMENT"],
1161 "noheader" => ["ELEMENT"],
1162 "charset" => ["ELEMENT"],
1163 "length_is" => ["ELEMENT"],
1164 "to_null" => ["ELEMENT"],
1167 #####################################################################
1168 # check for unknown properties
1169 sub ValidProperties($$)
1173 return unless defined $e->{PROPERTIES};
1175 foreach my $key (keys %{$e->{PROPERTIES}}) {
1176 warning($e, el_name($e) . ": unknown property '$key'")
1177 unless defined($property_list{$key});
1179 fatal($e, el_name($e) . ": property '$key' not allowed on '$t'")
1180 unless grep(/^$t$/, @{$property_list{$key}});
1188 return $t->{NAME} if (ref($t) eq "HASH" and $t->{TYPE} eq "SCALAR");
1189 my $ti = getType($t);
1191 if (not defined ($ti)) {
1193 } elsif ($ti->{TYPE} eq "TYPEDEF") {
1194 return mapToScalar($ti->{DATA});
1195 } elsif ($ti->{TYPE} eq "ENUM") {
1196 return Parse::Pidl::Typelist::enum_type_fn($ti);
1197 } elsif ($ti->{TYPE} eq "BITMAP") {
1198 return Parse::Pidl::Typelist::bitmap_type_fn($ti);
1204 #####################################################################
1205 # validate an element
1210 ValidProperties($e,"ELEMENT");
1212 # Check whether switches are used correctly.
1213 if (my $switch = has_property($e, "switch_is")) {
1214 my $e2 = find_sibling($e, $switch);
1215 my $type = getType($e->{TYPE});
1217 if (defined($type) and $type->{DATA}->{TYPE} ne "UNION") {
1218 fatal($e, el_name($e) . ": switch_is() used on non-union type $e->{TYPE} which is a $type->{DATA}->{TYPE}");
1221 if (not has_property($type->{DATA}, "nodiscriminant") and defined($e2)) {
1222 my $discriminator_type = has_property($type->{DATA}, "switch_type");
1223 $discriminator_type = "uint32" unless defined ($discriminator_type);
1225 my $t1 = mapScalarType(mapToScalar($discriminator_type));
1227 if (not defined($t1)) {
1228 fatal($e, el_name($e) . ": unable to map discriminator type '$discriminator_type' to scalar");
1231 my $t2 = mapScalarType(mapToScalar($e2->{TYPE}));
1232 if (not defined($t2)) {
1233 fatal($e, el_name($e) . ": unable to map variable used for switch_is() to scalar");
1237 warning($e, el_name($e) . ": switch_is() is of type $e2->{TYPE} ($t2), while discriminator type for union $type->{NAME} is $discriminator_type ($t1)");
1242 if (has_property($e, "subcontext") and has_property($e, "represent_as")) {
1243 fatal($e, el_name($e) . " : subcontext() and represent_as() can not be used on the same element");
1246 if (has_property($e, "subcontext") and has_property($e, "transmit_as")) {
1247 fatal($e, el_name($e) . " : subcontext() and transmit_as() can not be used on the same element");
1250 if (has_property($e, "represent_as") and has_property($e, "transmit_as")) {
1251 fatal($e, el_name($e) . " : represent_as() and transmit_as() can not be used on the same element");
1254 if (has_property($e, "represent_as") and has_property($e, "value")) {
1255 fatal($e, el_name($e) . " : represent_as() and value() can not be used on the same element");
1258 if (has_property($e, "subcontext")) {
1259 warning($e, "subcontext() is deprecated. Use represent_as() or transmit_as() instead");
1262 if (defined (has_property($e, "subcontext_size")) and not defined(has_property($e, "subcontext"))) {
1263 fatal($e, el_name($e) . " : subcontext_size() on non-subcontext element");
1266 if (defined (has_property($e, "compression")) and not defined(has_property($e, "subcontext"))) {
1267 fatal($e, el_name($e) . " : compression() on non-subcontext element");
1270 if (!$e->{POINTERS} && (
1271 has_property($e, "ptr") or
1272 has_property($e, "unique") or
1273 has_property($e, "relative") or
1274 has_property($e, "relative_short") or
1275 has_property($e, "ref"))) {
1276 fatal($e, el_name($e) . " : pointer properties on non-pointer element\n");
1280 #####################################################################
1286 ValidProperties($enum, "ENUM");
1289 #####################################################################
1295 ValidProperties($bitmap, "BITMAP");
1298 #####################################################################
1302 my($struct) = shift;
1304 ValidProperties($struct, "STRUCT");
1306 return unless defined($struct->{ELEMENTS});
1308 foreach my $e (@{$struct->{ELEMENTS}}) {
1309 $e->{PARENT} = $struct;
1314 #####################################################################
1320 ValidProperties($union,"UNION");
1322 if (has_property($union->{PARENT}, "nodiscriminant") and
1323 has_property($union->{PARENT}, "switch_type")) {
1324 fatal($union->{PARENT}, $union->{PARENT}->{NAME} . ": switch_type(" . $union->{PARENT}->{PROPERTIES}->{switch_type} . ") on union without discriminant");
1327 return unless defined($union->{ELEMENTS});
1329 foreach my $e (@{$union->{ELEMENTS}}) {
1330 $e->{PARENT} = $union;
1332 if (defined($e->{PROPERTIES}->{default}) and
1333 defined($e->{PROPERTIES}->{case})) {
1334 fatal($e, "Union member $e->{NAME} can not have both default and case properties!");
1337 unless (defined ($e->{PROPERTIES}->{default}) or
1338 defined ($e->{PROPERTIES}->{case})) {
1339 fatal($e, "Union member $e->{NAME} must have default or case property");
1342 if (has_property($e, "ref")) {
1343 fatal($e, el_name($e) . ": embedded ref pointers are not supported yet\n");
1351 #####################################################################
1356 my $struct = $pipe->{DATA};
1358 ValidProperties($pipe, "PIPE");
1360 $struct->{PARENT} = $pipe;
1362 $struct->{FILE} = $pipe->{FILE} unless defined($struct->{FILE});
1363 $struct->{LINE} = $pipe->{LINE} unless defined($struct->{LINE});
1368 #####################################################################
1372 my($typedef) = shift;
1373 my $data = $typedef->{DATA};
1375 ValidProperties($typedef, "TYPEDEF");
1377 return unless (ref($data) eq "HASH");
1379 $data->{PARENT} = $typedef;
1381 $data->{FILE} = $typedef->{FILE} unless defined($data->{FILE});
1382 $data->{LINE} = $typedef->{LINE} unless defined($data->{LINE});
1387 #####################################################################
1388 # validate a function
1389 sub ValidFunction($)
1393 ValidProperties($fn,"FUNCTION");
1395 foreach my $e (@{$fn->{ELEMENTS}}) {
1397 if (has_property($e, "ref") && !$e->{POINTERS}) {
1398 fatal($e, "[ref] variables must be pointers ($fn->{NAME}/$e->{NAME})");
1404 #####################################################################
1411 TYPEDEF => \&ValidTypedef,
1412 STRUCT => \&ValidStruct,
1413 UNION => \&ValidUnion,
1414 ENUM => \&ValidEnum,
1415 BITMAP => \&ValidBitmap,
1417 }->{$t->{TYPE}}->($t);
1420 #####################################################################
1421 # parse the interface definitions
1422 sub ValidInterface($)
1424 my($interface) = shift;
1425 my($data) = $interface->{DATA};
1427 if (has_property($interface, "helper")) {
1428 warning($interface, "helper() is pidl-specific and deprecated. Use `include' instead");
1431 ValidProperties($interface,"INTERFACE");
1433 if (has_property($interface, "pointer_default")) {
1434 if (not grep (/$interface->{PROPERTIES}->{pointer_default}/,
1435 ("ref", "unique", "ptr"))) {
1436 fatal($interface, "Unknown default pointer type `$interface->{PROPERTIES}->{pointer_default}'");
1440 if (has_property($interface, "object")) {
1441 if (has_property($interface, "version") &&
1442 $interface->{PROPERTIES}->{version} != 0) {
1443 fatal($interface, "Object interfaces must have version 0.0 ($interface->{NAME})");
1446 if (!defined($interface->{BASE}) &&
1447 not ($interface->{NAME} eq "IUnknown")) {
1448 fatal($interface, "Object interfaces must all derive from IUnknown ($interface->{NAME})");
1452 foreach my $d (@{$data}) {
1453 ($d->{TYPE} eq "FUNCTION") && ValidFunction($d);
1454 ($d->{TYPE} eq "TYPEDEF" or
1455 $d->{TYPE} eq "STRUCT" or
1456 $d->{TYPE} eq "UNION" or
1457 $d->{TYPE} eq "ENUM" or
1458 $d->{TYPE} eq "BITMAP" or
1459 $d->{TYPE} eq "PIPE") && ValidType($d);
1464 #####################################################################
1465 # Validate an IDL structure
1470 foreach my $x (@{$idl}) {
1471 ($x->{TYPE} eq "INTERFACE") &&
1473 ($x->{TYPE} eq "IMPORTLIB") &&
1474 fatal($x, "importlib() not supported");
1478 sub is_charset_array($$)
1482 return 0 if ($l->{TYPE} ne "ARRAY");
1484 my $nl = GetNextLevel($e,$l);
1486 return 0 unless ($nl->{TYPE} eq "DATA");
1488 return has_property($e, "charset");