1 ###################################################
2 # create C header files for an IDL structure
3 # Copyright tridge@samba.org 2000
4 # Copyright jelmer@samba.org 2005
5 # released under the GNU GPL
7 package Parse::Pidl::Samba4::Header;
12 @EXPORT_OK = qw(GenerateFunctionInEnv GenerateFunctionOutEnv EnvSubstituteValue GenerateStructEnv);
15 use Parse::Pidl qw(fatal);
16 use Parse::Pidl::Typelist qw(mapTypeName scalar_is_reference);
17 use Parse::Pidl::Util qw(has_property is_constant unmake_str ParseExpr);
18 use Parse::Pidl::Samba4 qw(is_intree ElementStars ArrayBrackets choose_header);
20 use vars qw($VERSION);
26 sub pidl($) { $res .= shift; }
31 $res .="\t" foreach (1..$tab_depth);
35 #####################################################################
36 # parse a properties list
37 sub HeaderProperties($$)
39 my($props,$ignores) = @_;
42 foreach my $d (keys %{$props}) {
43 next if (grep(/^$d$/, @$ignores));
44 if($props->{$d} ne "1") {
45 $ret.= "$d($props->{$d}),";
52 pidl "/* [" . substr($ret, 0, -1) . "] */";
56 #####################################################################
57 # parse a structure element
63 if (has_property($element, "represent_as")) {
64 pidl mapTypeName($element->{PROPERTIES}->{represent_as})." ";
66 if (ref($element->{TYPE}) eq "HASH") {
67 HeaderType($element, $element->{TYPE}, $element->{TYPE}->{NAME});
69 HeaderType($element, $element->{TYPE}, "");
71 pidl " ".ElementStars($element);
73 pidl $element->{NAME};
74 pidl ArrayBrackets($element);
77 if (defined $element->{PROPERTIES}) {
78 HeaderProperties($element->{PROPERTIES}, ["in", "out"]);
83 #####################################################################
85 sub HeaderStruct($$;$)
87 my($struct,$name,$tail) = @_;
89 pidl $tail if defined($tail) and not defined($struct->{ELEMENTS});
90 return if (not defined($struct->{ELEMENTS}));
94 foreach (@{$struct->{ELEMENTS}}) {
99 # some compilers can't handle empty structures
100 pidl tabs()."char _empty_;\n";
104 if (defined $struct->{PROPERTIES}) {
105 HeaderProperties($struct->{PROPERTIES}, []);
107 pidl $tail if defined($tail);
110 #####################################################################
114 my($enum,$name,$tail) = @_;
118 if (defined($enum->{ELEMENTS})) {
119 pidl "\n#ifndef USE_UINT_ENUMS\n";
122 foreach my $e (@{$enum->{ELEMENTS}}) {
123 unless ($first) { pidl ",\n"; }
136 pidl " { __donnot_use_enum_$name=0x7FFFFFFF}\n";
137 foreach my $e (@{$enum->{ELEMENTS}}) {
141 if ($t =~ /(.*)=(.*)/) {
145 fatal($e->{ORIGINAL}, "you can't mix enum member with values and without values!")
146 unless ($without_val == 0);
151 fatal($e->{ORIGINAL}, "you can't mix enum member with values and without values!")
152 unless ($with_val == 0);
154 pidl "#define $name ( $value )\n";
158 pidl $tail if defined($tail);
161 #####################################################################
165 my($bitmap,$name) = @_;
167 return unless defined($bitmap->{ELEMENTS});
169 pidl "/* bitmap $name */\n";
170 pidl "#define $_\n" foreach (@{$bitmap->{ELEMENTS}});
174 #####################################################################
176 sub HeaderUnion($$;$)
178 my($union,$name,$tail) = @_;
182 pidl $tail if defined($tail) and not defined($union->{ELEMENTS});
183 return if (not defined($union->{ELEMENTS}));
186 foreach my $e (@{$union->{ELEMENTS}}) {
187 if ($e->{TYPE} ne "EMPTY") {
188 if (! defined $done{$e->{NAME}}) {
191 $done{$e->{NAME}} = 1;
197 if (defined $union->{PROPERTIES}) {
198 HeaderProperties($union->{PROPERTIES}, []);
200 pidl $tail if defined($tail);
203 #####################################################################
205 sub HeaderType($$$;$)
207 my($e,$data,$name,$tail) = @_;
208 if (ref($data) eq "HASH") {
209 ($data->{TYPE} eq "ENUM") && HeaderEnum($data, $name, $tail);
210 ($data->{TYPE} eq "BITMAP") && HeaderBitmap($data, $name);
211 ($data->{TYPE} eq "STRUCT") && HeaderStruct($data, $name, $tail);
212 ($data->{TYPE} eq "UNION") && HeaderUnion($data, $name, $tail);
216 if (has_property($e, "charset")) {
219 pidl mapTypeName($e->{TYPE});
221 pidl $tail if defined($tail);
224 #####################################################################
226 sub HeaderTypedef($;$)
228 my($typedef,$tail) = @_;
229 HeaderType($typedef, $typedef->{DATA}, $typedef->{NAME}, $tail) if defined ($typedef->{DATA});
232 #####################################################################
237 if (!defined($const->{ARRAY_LEN}[0])) {
238 pidl "#define $const->{NAME}\t( $const->{VALUE} )\n";
240 pidl "#define $const->{NAME}\t $const->{VALUE}\n";
244 sub ElementDirection($)
248 return "inout" if (has_property($e, "in") and has_property($e, "out"));
249 return "in" if (has_property($e, "in"));
250 return "out" if (has_property($e, "out"));
254 #####################################################################
256 sub HeaderFunctionInOut($$)
260 return unless defined($fn->{ELEMENTS});
262 foreach my $e (@{$fn->{ELEMENTS}}) {
263 HeaderElement($e) if (ElementDirection($e) eq $prop);
267 #####################################################################
268 # determine if we need an "in" or "out" section
269 sub HeaderFunctionInOut_needed($$)
273 return 1 if ($prop eq "out" && defined($fn->{RETURN_TYPE}));
275 return undef unless defined($fn->{ELEMENTS});
277 foreach my $e (@{$fn->{ELEMENTS}}) {
278 return 1 if (ElementDirection($e) eq $prop);
286 #####################################################################
288 sub HeaderFunction($)
292 return if ($headerstructs{$fn->{NAME}});
294 $headerstructs{$fn->{NAME}} = 1;
296 pidl "\nstruct $fn->{NAME} {\n";
300 if (HeaderFunctionInOut_needed($fn, "in") or
301 HeaderFunctionInOut_needed($fn, "inout")) {
302 pidl tabs()."struct {\n";
304 HeaderFunctionInOut($fn, "in");
305 HeaderFunctionInOut($fn, "inout");
307 pidl tabs()."} in;\n\n";
311 if (HeaderFunctionInOut_needed($fn, "out") or
312 HeaderFunctionInOut_needed($fn, "inout")) {
313 pidl tabs()."struct {\n";
315 HeaderFunctionInOut($fn, "out");
316 HeaderFunctionInOut($fn, "inout");
317 if (defined($fn->{RETURN_TYPE})) {
318 pidl tabs().mapTypeName($fn->{RETURN_TYPE}) . " result;\n";
321 pidl tabs()."} out;\n\n";
326 # sigh - some compilers don't like empty structures
327 pidl tabs()."int _dummy_element;\n";
340 pidl choose_header("librpc/gen_ndr/$_\.h", "gen_ndr/$_.h") . "\n";
347 foreach (@includes) {
348 pidl "#include $_\n";
352 #####################################################################
353 # parse the interface definitions
354 sub HeaderInterface($)
356 my($interface) = shift;
358 pidl "#ifndef _HEADER_$interface->{NAME}\n";
359 pidl "#define _HEADER_$interface->{NAME}\n\n";
361 foreach my $c (@{$interface->{CONSTS}}) {
365 foreach my $t (@{$interface->{TYPES}}) {
366 HeaderTypedef($t, ";\n\n") if ($t->{TYPE} eq "TYPEDEF");
367 HeaderStruct($t, $t->{NAME}, ";\n\n") if ($t->{TYPE} eq "STRUCT");
368 HeaderUnion($t, $t->{NAME}, ";\n\n") if ($t->{TYPE} eq "UNION");
369 HeaderEnum($t, $t->{NAME}, ";\n\n") if ($t->{TYPE} eq "ENUM");
370 HeaderBitmap($t, $t->{NAME}) if ($t->{TYPE} eq "BITMAP");
373 foreach my $fn (@{$interface->{FUNCTIONS}}) {
377 pidl "#endif /* _HEADER_$interface->{NAME} */\n";
384 pidl unmake_str($quote->{DATA}) . "\n";
387 #####################################################################
388 # parse a parsed IDL into a C header
396 pidl "/* header auto-generated by pidl */\n\n";
398 pidl "#include <util/data_blob.h>\n";
400 pidl "#include <stdint.h>\n";
404 ($_->{TYPE} eq "CPP_QUOTE") && HeaderQuote($_);
405 ($_->{TYPE} eq "INTERFACE") && HeaderInterface($_);
406 ($_->{TYPE} eq "IMPORT") && HeaderImport(@{$_->{PATHS}});
407 ($_->{TYPE} eq "INCLUDE") && HeaderInclude(@{$_->{PATHS}});
413 sub GenerateStructEnv($$)
418 foreach my $e (@{$x->{ELEMENTS}}) {
419 $env{$e->{NAME}} = "$v->$e->{NAME}";
427 sub EnvSubstituteValue($$)
431 # Substitute the value() values in the env
432 foreach my $e (@{$s->{ELEMENTS}}) {
433 next unless (defined(my $v = has_property($e, "value")));
435 $env->{$e->{NAME}} = ParseExpr($v, $env, $e);
441 sub GenerateFunctionInEnv($;$)
443 my ($fn, $base) = @_;
446 $base = "r->" unless defined($base);
448 foreach my $e (@{$fn->{ELEMENTS}}) {
449 if (grep (/in/, @{$e->{DIRECTION}})) {
450 $env{$e->{NAME}} = $base."in.$e->{NAME}";
457 sub GenerateFunctionOutEnv($;$)
459 my ($fn, $base) = @_;
462 $base = "r->" unless defined($base);
464 foreach my $e (@{$fn->{ELEMENTS}}) {
465 if (grep (/out/, @{$e->{DIRECTION}})) {
466 $env{$e->{NAME}} = $base."out.$e->{NAME}";
467 } elsif (grep (/in/, @{$e->{DIRECTION}})) {
468 $env{$e->{NAME}} = $base."in.$e->{NAME}";