Commit | Line | Data |
2304df62 |
1 | #!./miniperl |
75f92628 |
2 | |
3 | =head1 NAME |
4 | |
5 | xsubpp - compiler to convert Perl XS code into C code |
6 | |
7 | =head1 SYNOPSIS |
8 | |
8fc38fda |
9 | B<xsubpp> [B<-v>] [B<-C++>] [B<-except>] [B<-s pattern>] [B<-prototypes>] [B<-noversioncheck>] [B<-typemap typemap>]... file.xs |
75f92628 |
10 | |
11 | =head1 DESCRIPTION |
12 | |
13 | I<xsubpp> will compile XS code into C code by embedding the constructs |
14 | necessary to let C functions manipulate Perl values and creates the glue |
15 | necessary to let Perl access those functions. The compiler uses typemaps to |
16 | determine how to map C function parameters and variables to Perl values. |
17 | |
18 | The compiler will search for typemap files called I<typemap>. It will use |
19 | the following search path to find default typemaps, with the rightmost |
20 | typemap taking precedence. |
21 | |
22 | ../../../typemap:../../typemap:../typemap:typemap |
23 | |
24 | =head1 OPTIONS |
25 | |
26 | =over 5 |
27 | |
28 | =item B<-C++> |
29 | |
30 | Adds ``extern "C"'' to the C code. |
31 | |
32 | |
33 | =item B<-except> |
34 | |
35 | Adds exception handling stubs to the C code. |
36 | |
37 | =item B<-typemap typemap> |
38 | |
39 | Indicates that a user-supplied typemap should take precedence over the |
40 | default typemaps. This option may be used multiple times, with the last |
41 | typemap having the highest precedence. |
42 | |
8e07c86e |
43 | =item B<-v> |
44 | |
45 | Prints the I<xsubpp> version number to standard output, then exits. |
46 | |
8fc38fda |
47 | =item B<-prototypes> |
382b8d97 |
48 | |
8fc38fda |
49 | By default I<xsubpp> will not automatically generate prototype code for |
50 | all xsubs. This flag will enable prototypes. |
51 | |
52 | =item B<-noversioncheck> |
53 | |
54 | Disables the run time test that determines if the object file (derived |
55 | from the C<.xs> file) and the C<.pm> files have the same version |
56 | number. |
382b8d97 |
57 | |
75f92628 |
58 | =back |
59 | |
60 | =head1 ENVIRONMENT |
61 | |
62 | No environment variables are used. |
63 | |
64 | =head1 AUTHOR |
65 | |
66 | Larry Wall |
67 | |
f06db76b |
68 | =head1 MODIFICATION HISTORY |
69 | |
8e07c86e |
70 | See the file F<changes.pod>. |
e50aee73 |
71 | |
75f92628 |
72 | =head1 SEE ALSO |
73 | |
a5dbbe28 |
74 | perl(1), perlxs(1), perlxstut(1), perlxs(1) |
75f92628 |
75 | |
76 | =cut |
93a17b20 |
77 | |
382b8d97 |
78 | require 5.002; |
774d564b |
79 | use Cwd; |
4230ab3f |
80 | use vars '$cplusplus'; |
382b8d97 |
81 | |
aa689395 |
82 | sub Q ; |
83 | |
774d564b |
84 | # Global Constants |
774d564b |
85 | |
aa689395 |
86 | $XSUBPP_version = "1.9402"; |
87 | |
88 | my ($Is_VMS, $SymSet); |
89 | if ($^O eq 'VMS') { |
90 | $Is_VMS = 1; |
91 | # Establish set of global symbols with max length 28, since xsubpp |
92 | # will later add the 'XS_' prefix. |
93 | require ExtUtils::XSSymSet; |
94 | $SymSet = new ExtUtils::XSSymSet 28; |
95 | } |
8fc38fda |
96 | |
c07a80fd |
97 | $FH = 'File0000' ; |
8fc38fda |
98 | |
99 | $usage = "Usage: xsubpp [-v] [-C++] [-except] [-prototypes] [-noversioncheck] [-s pattern] [-typemap typemap]... file.xs\n"; |
f06db76b |
100 | |
382b8d97 |
101 | $proto_re = "[" . quotemeta('\$%&*@;') . "]" ; |
93a17b20 |
102 | |
8e07c86e |
103 | $except = ""; |
8fc38fda |
104 | $WantPrototypes = -1 ; |
105 | $WantVersionChk = 1 ; |
106 | $ProtoUsed = 0 ; |
8e07c86e |
107 | SWITCH: while (@ARGV and $ARGV[0] =~ /^-./) { |
93a17b20 |
108 | $flag = shift @ARGV; |
e50aee73 |
109 | $flag =~ s/^-// ; |
ff68c719 |
110 | $spat = quotemeta shift, next SWITCH if $flag eq 's'; |
8990e307 |
111 | $cplusplus = 1, next SWITCH if $flag eq 'C++'; |
382b8d97 |
112 | $WantPrototypes = 0, next SWITCH if $flag eq 'noprototypes'; |
113 | $WantPrototypes = 1, next SWITCH if $flag eq 'prototypes'; |
8fc38fda |
114 | $WantVersionChk = 0, next SWITCH if $flag eq 'noversioncheck'; |
115 | $WantVersionChk = 1, next SWITCH if $flag eq 'versioncheck'; |
8e07c86e |
116 | $except = " TRY", next SWITCH if $flag eq 'except'; |
8990e307 |
117 | push(@tm,shift), next SWITCH if $flag eq 'typemap'; |
8e07c86e |
118 | (print "xsubpp version $XSUBPP_version\n"), exit |
119 | if $flag eq 'v'; |
93a17b20 |
120 | die $usage; |
121 | } |
8fc38fda |
122 | if ($WantPrototypes == -1) |
123 | { $WantPrototypes = 0} |
124 | else |
125 | { $ProtoUsed = 1 } |
126 | |
127 | |
8990e307 |
128 | @ARGV == 1 or die $usage; |
c2960299 |
129 | ($dir, $filename) = $ARGV[0] =~ m#(.*)/(.*)# |
130 | or ($dir, $filename) = $ARGV[0] =~ m#(.*[>\]])(.*)# |
8990e307 |
131 | or ($dir, $filename) = ('.', $ARGV[0]); |
132 | chdir($dir); |
774d564b |
133 | $pwd = cwd(); |
8fc38fda |
134 | |
135 | ++ $IncludedFiles{$ARGV[0]} ; |
93a17b20 |
136 | |
4230ab3f |
137 | my(@XSStack) = ({type => 'none'}); # Stack of conditionals and INCLUDEs |
138 | my($XSS_work_idx, $cpp_next_tmp) = (0, "XSubPPtmpAAAA"); |
aa689395 |
139 | |
4230ab3f |
140 | |
f06db76b |
141 | sub TrimWhitespace |
142 | { |
143 | $_[0] =~ s/^\s+|\s+$//go ; |
144 | } |
145 | |
146 | sub TidyType |
147 | { |
148 | local ($_) = @_ ; |
149 | |
150 | # rationalise any '*' by joining them into bunches and removing whitespace |
151 | s#\s*(\*+)\s*#$1#g; |
e50aee73 |
152 | s#(\*+)# $1 #g ; |
f06db76b |
153 | |
154 | # change multiple whitespace into a single space |
155 | s/\s+/ /g ; |
156 | |
157 | # trim leading & trailing whitespace |
158 | TrimWhitespace($_) ; |
159 | |
160 | $_ ; |
161 | } |
162 | |
93a17b20 |
163 | $typemap = shift @ARGV; |
8990e307 |
164 | foreach $typemap (@tm) { |
165 | die "Can't find $typemap in $pwd\n" unless -r $typemap; |
93a17b20 |
166 | } |
748a9306 |
167 | unshift @tm, qw(../../../../lib/ExtUtils/typemap ../../../lib/ExtUtils/typemap |
168 | ../../lib/ExtUtils/typemap ../../../typemap ../../typemap |
169 | ../typemap typemap); |
8990e307 |
170 | foreach $typemap (@tm) { |
f06db76b |
171 | next unless -e $typemap ; |
172 | # skip directories, binary files etc. |
173 | warn("Warning: ignoring non-text typemap file '$typemap'\n"), next |
174 | unless -T $typemap ; |
175 | open(TYPEMAP, $typemap) |
176 | or warn ("Warning: could not open typemap file '$typemap': $!\n"), next; |
e50aee73 |
177 | $mode = 'Typemap'; |
c2960299 |
178 | $junk = "" ; |
8990e307 |
179 | $current = \$junk; |
180 | while (<TYPEMAP>) { |
e50aee73 |
181 | next if /^\s*#/; |
e1f0c0aa |
182 | my $line_no = $. + 1; |
8e07c86e |
183 | if (/^INPUT\s*$/) { $mode = 'Input'; $current = \$junk; next; } |
184 | if (/^OUTPUT\s*$/) { $mode = 'Output'; $current = \$junk; next; } |
185 | if (/^TYPEMAP\s*$/) { $mode = 'Typemap'; $current = \$junk; next; } |
e50aee73 |
186 | if ($mode eq 'Typemap') { |
187 | chomp; |
f06db76b |
188 | my $line = $_ ; |
189 | TrimWhitespace($_) ; |
190 | # skip blank lines and comment lines |
191 | next if /^$/ or /^#/ ; |
382b8d97 |
192 | my($type,$kind, $proto) = /^\s*(.*?\S)\s+(\S+)\s*($proto_re*)\s*$/ or |
193 | warn("Warning: File '$typemap' Line $. '$line' TYPEMAP entry needs 2 or 3 columns\n"), next; |
194 | $type = TidyType($type) ; |
195 | $type_kind{$type} = $kind ; |
196 | # prototype defaults to '$' |
93d3b392 |
197 | $proto = "\$" unless $proto ; |
382b8d97 |
198 | warn("Warning: File '$typemap' Line $. '$line' Invalid prototype '$proto'\n") |
199 | unless ValidProtoString($proto) ; |
200 | $proto_letter{$type} = C_string($proto) ; |
8e07c86e |
201 | } |
202 | elsif (/^\s/) { |
203 | $$current .= $_; |
463ee0b2 |
204 | } |
e50aee73 |
205 | elsif ($mode eq 'Input') { |
8e07c86e |
206 | s/\s+$//; |
207 | $input_expr{$_} = ''; |
208 | $current = \$input_expr{$_}; |
93a17b20 |
209 | } |
8990e307 |
210 | else { |
8e07c86e |
211 | s/\s+$//; |
212 | $output_expr{$_} = ''; |
213 | $current = \$output_expr{$_}; |
93a17b20 |
214 | } |
8990e307 |
215 | } |
216 | close(TYPEMAP); |
217 | } |
93a17b20 |
218 | |
8990e307 |
219 | foreach $key (keys %input_expr) { |
220 | $input_expr{$key} =~ s/\n+$//; |
221 | } |
93a17b20 |
222 | |
8e07c86e |
223 | $END = "!End!\n\n"; # "impossible" keyword (multiple newline) |
224 | |
225 | # Match an XS keyword |
382b8d97 |
226 | $BLOCK_re= '\s*(' . join('|', qw( |
227 | REQUIRE BOOT CASE PREINIT INPUT INIT CODE PPCODE OUTPUT |
8fc38fda |
228 | CLEANUP ALIAS PROTOTYPES PROTOTYPE VERSIONCHECK INCLUDE |
db3b9414 |
229 | SCOPE |
382b8d97 |
230 | )) . "|$END)\\s*:"; |
8e07c86e |
231 | |
232 | # Input: ($_, @line) == unparsed input. |
233 | # Output: ($_, @line) == (rest of line, following lines). |
234 | # Return: the matched keyword if found, otherwise 0 |
235 | sub check_keyword { |
236 | $_ = shift(@line) while !/\S/ && @line; |
237 | s/^(\s*)($_[0])\s*:\s*(?:#.*)?/$1/s && $2; |
238 | } |
239 | |
240 | |
241 | sub print_section { |
e1f0c0aa |
242 | my $count = 0; |
8e07c86e |
243 | $_ = shift(@line) while !/\S/ && @line; |
244 | for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) { |
e1f0c0aa |
245 | print line_directive() unless ($count++); |
8e07c86e |
246 | print "$_\n"; |
247 | } |
248 | } |
249 | |
8fc38fda |
250 | sub process_keyword($) |
251 | { |
252 | my($pattern) = @_ ; |
253 | my $kwd ; |
254 | |
255 | &{"${kwd}_handler"}() |
256 | while $kwd = check_keyword($pattern) ; |
e1f0c0aa |
257 | print line_directive(); |
8fc38fda |
258 | } |
259 | |
8e07c86e |
260 | sub CASE_handler { |
261 | blurt ("Error: `CASE:' after unconditional `CASE:'") |
262 | if $condnum && $cond eq ''; |
263 | $cond = $_; |
264 | TrimWhitespace($cond); |
265 | print " ", ($condnum++ ? " else" : ""), ($cond ? " if ($cond)\n" : "\n"); |
266 | $_ = '' ; |
267 | } |
268 | |
269 | sub INPUT_handler { |
270 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
271 | last if /^\s*NOT_IMPLEMENTED_YET/; |
272 | next unless /\S/; # skip blank lines |
273 | |
274 | TrimWhitespace($_) ; |
275 | my $line = $_ ; |
276 | |
277 | # remove trailing semicolon if no initialisation |
278 | s/\s*;$//g unless /=/ ; |
279 | |
280 | # check for optional initialisation code |
281 | my $var_init = '' ; |
282 | $var_init = $1 if s/\s*(=.*)$//s ; |
283 | $var_init =~ s/"/\\"/g; |
284 | |
285 | s/\s+/ /g; |
286 | my ($var_type, $var_addr, $var_name) = /^(.*?[^& ]) *(\&?) *\b(\w+)$/s |
287 | or blurt("Error: invalid argument declaration '$line'"), next; |
288 | |
289 | # Check for duplicate definitions |
290 | blurt ("Error: duplicate definition of argument '$var_name' ignored"), next |
291 | if $arg_list{$var_name} ++ ; |
292 | |
293 | $thisdone |= $var_name eq "THIS"; |
294 | $retvaldone |= $var_name eq "RETVAL"; |
295 | $var_types{$var_name} = $var_type; |
296 | print "\t" . &map_type($var_type); |
297 | $var_num = $args_match{$var_name}; |
382b8d97 |
298 | |
8fc38fda |
299 | $proto_arg[$var_num] = ProtoString($var_type) |
300 | if $var_num ; |
8e07c86e |
301 | if ($var_addr) { |
302 | $var_addr{$var_name} = 1; |
303 | $func_args =~ s/\b($var_name)\b/&$1/; |
304 | } |
305 | if ($var_init =~ /^=\s*NO_INIT\s*;?\s*$/) { |
306 | print "\t$var_name;\n"; |
307 | } elsif ($var_init =~ /\S/) { |
308 | &output_init($var_type, $var_num, "$var_name $var_init"); |
309 | } elsif ($var_num) { |
310 | # generate initialization code |
311 | &generate_init($var_type, $var_num, $var_name); |
312 | } else { |
313 | print ";\n"; |
314 | } |
315 | } |
316 | } |
317 | |
318 | sub OUTPUT_handler { |
319 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
320 | next unless /\S/; |
321 | my ($outarg, $outcode) = /^\s*(\S+)\s*(.*?)\s*$/s ; |
322 | blurt ("Error: duplicate OUTPUT argument '$outarg' ignored"), next |
323 | if $outargs{$outarg} ++ ; |
324 | if (!$gotRETVAL and $outarg eq 'RETVAL') { |
325 | # deal with RETVAL last |
326 | $RETVAL_code = $outcode ; |
327 | $gotRETVAL = 1 ; |
328 | next ; |
329 | } |
330 | blurt ("Error: OUTPUT $outarg not an argument"), next |
331 | unless defined($args_match{$outarg}); |
332 | blurt("Error: No input definition for OUTPUT argument '$outarg' - ignored"), next |
333 | unless defined $var_types{$outarg} ; |
e1f0c0aa |
334 | print line_directive(); |
8e07c86e |
335 | if ($outcode) { |
336 | print "\t$outcode\n"; |
337 | } else { |
338 | $var_num = $args_match{$outarg}; |
339 | &generate_output($var_types{$outarg}, $var_num, $outarg); |
340 | } |
341 | } |
342 | } |
343 | |
8fc38fda |
344 | sub CLEANUP_handler() { print_section() } |
345 | sub PREINIT_handler() { print_section() } |
346 | sub INIT_handler() { print_section() } |
347 | |
8e07c86e |
348 | sub GetAliases |
349 | { |
350 | my ($line) = @_ ; |
351 | my ($orig) = $line ; |
352 | my ($alias) ; |
353 | my ($value) ; |
354 | |
355 | # Parse alias definitions |
356 | # format is |
357 | # alias = value alias = value ... |
358 | |
359 | while ($line =~ s/^\s*([\w:]+)\s*=\s*(\w+)\s*//) { |
360 | $alias = $1 ; |
361 | $orig_alias = $alias ; |
362 | $value = $2 ; |
363 | |
364 | # check for optional package definition in the alias |
365 | $alias = $Packprefix . $alias if $alias !~ /::/ ; |
366 | |
367 | # check for duplicate alias name & duplicate value |
368 | Warn("Warning: Ignoring duplicate alias '$orig_alias'") |
4230ab3f |
369 | if defined $XsubAliases{$alias} ; |
8e07c86e |
370 | |
4230ab3f |
371 | Warn("Warning: Aliases '$orig_alias' and '$XsubAliasValues{$value}' have identical values") |
372 | if $XsubAliasValues{$value} ; |
8e07c86e |
373 | |
4230ab3f |
374 | $XsubAliases = 1; |
375 | $XsubAliases{$alias} = $value ; |
376 | $XsubAliasValues{$value} = $orig_alias ; |
8e07c86e |
377 | } |
378 | |
379 | blurt("Error: Cannot parse ALIAS definitions from '$orig'") |
380 | if $line ; |
381 | } |
382 | |
382b8d97 |
383 | sub ALIAS_handler () |
8e07c86e |
384 | { |
385 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
386 | next unless /\S/; |
387 | TrimWhitespace($_) ; |
388 | GetAliases($_) if $_ ; |
389 | } |
390 | } |
391 | |
382b8d97 |
392 | sub REQUIRE_handler () |
8e07c86e |
393 | { |
394 | # the rest of the current line should contain a version number |
395 | my ($Ver) = $_ ; |
396 | |
397 | TrimWhitespace($Ver) ; |
398 | |
399 | death ("Error: REQUIRE expects a version number") |
400 | unless $Ver ; |
401 | |
402 | # check that the version number is of the form n.n |
403 | death ("Error: REQUIRE: expected a number, got '$Ver'") |
404 | unless $Ver =~ /^\d+(\.\d*)?/ ; |
405 | |
406 | death ("Error: xsubpp $Ver (or better) required--this is only $XSUBPP_version.") |
407 | unless $XSUBPP_version >= $Ver ; |
408 | } |
409 | |
8fc38fda |
410 | sub VERSIONCHECK_handler () |
411 | { |
412 | # the rest of the current line should contain either ENABLE or |
413 | # DISABLE |
414 | |
415 | TrimWhitespace($_) ; |
416 | |
417 | # check for ENABLE/DISABLE |
418 | death ("Error: VERSIONCHECK: ENABLE/DISABLE") |
419 | unless /^(ENABLE|DISABLE)/i ; |
420 | |
421 | $WantVersionChk = 1 if $1 eq 'ENABLE' ; |
422 | $WantVersionChk = 0 if $1 eq 'DISABLE' ; |
423 | |
424 | } |
425 | |
382b8d97 |
426 | sub PROTOTYPE_handler () |
427 | { |
7d41bd0a |
428 | my $specified ; |
429 | |
c07a80fd |
430 | death("Error: Only 1 PROTOTYPE definition allowed per xsub") |
431 | if $proto_in_this_xsub ++ ; |
432 | |
382b8d97 |
433 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
434 | next unless /\S/; |
7d41bd0a |
435 | $specified = 1 ; |
382b8d97 |
436 | TrimWhitespace($_) ; |
437 | if ($_ eq 'DISABLE') { |
438 | $ProtoThisXSUB = 0 |
439 | } |
440 | elsif ($_ eq 'ENABLE') { |
441 | $ProtoThisXSUB = 1 |
442 | } |
443 | else { |
444 | # remove any whitespace |
445 | s/\s+//g ; |
446 | death("Error: Invalid prototype '$_'") |
447 | unless ValidProtoString($_) ; |
448 | $ProtoThisXSUB = C_string($_) ; |
449 | } |
450 | } |
c07a80fd |
451 | |
7d41bd0a |
452 | # If no prototype specified, then assume empty prototype "" |
453 | $ProtoThisXSUB = 2 unless $specified ; |
454 | |
8fc38fda |
455 | $ProtoUsed = 1 ; |
c07a80fd |
456 | |
382b8d97 |
457 | } |
458 | |
db3b9414 |
459 | sub SCOPE_handler () |
460 | { |
461 | death("Error: Only 1 SCOPE declaration allowed per xsub") |
462 | if $scope_in_this_xsub ++ ; |
463 | |
464 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
465 | next unless /\S/; |
466 | TrimWhitespace($_) ; |
467 | if ($_ =~ /^DISABLE/i) { |
468 | $ScopeThisXSUB = 0 |
469 | } |
470 | elsif ($_ =~ /^ENABLE/i) { |
471 | $ScopeThisXSUB = 1 |
472 | } |
473 | } |
474 | |
475 | } |
476 | |
382b8d97 |
477 | sub PROTOTYPES_handler () |
478 | { |
479 | # the rest of the current line should contain either ENABLE or |
480 | # DISABLE |
481 | |
482 | TrimWhitespace($_) ; |
483 | |
484 | # check for ENABLE/DISABLE |
485 | death ("Error: PROTOTYPES: ENABLE/DISABLE") |
486 | unless /^(ENABLE|DISABLE)/i ; |
487 | |
488 | $WantPrototypes = 1 if $1 eq 'ENABLE' ; |
489 | $WantPrototypes = 0 if $1 eq 'DISABLE' ; |
8fc38fda |
490 | $ProtoUsed = 1 ; |
382b8d97 |
491 | |
492 | } |
493 | |
8fc38fda |
494 | sub INCLUDE_handler () |
495 | { |
496 | # the rest of the current line should contain a valid filename |
497 | |
498 | TrimWhitespace($_) ; |
499 | |
8fc38fda |
500 | death("INCLUDE: filename missing") |
501 | unless $_ ; |
502 | |
503 | death("INCLUDE: output pipe is illegal") |
504 | if /^\s*\|/ ; |
505 | |
506 | # simple minded recursion detector |
507 | death("INCLUDE loop detected") |
508 | if $IncludedFiles{$_} ; |
509 | |
510 | ++ $IncludedFiles{$_} unless /\|\s*$/ ; |
511 | |
512 | # Save the current file context. |
4230ab3f |
513 | push(@XSStack, { |
514 | type => 'file', |
8fc38fda |
515 | LastLine => $lastline, |
516 | LastLineNo => $lastline_no, |
517 | Line => \@line, |
518 | LineNo => \@line_no, |
519 | Filename => $filename, |
c07a80fd |
520 | Handle => $FH, |
8fc38fda |
521 | }) ; |
522 | |
c07a80fd |
523 | ++ $FH ; |
8fc38fda |
524 | |
525 | # open the new file |
c07a80fd |
526 | open ($FH, "$_") or death("Cannot open '$_': $!") ; |
8fc38fda |
527 | |
528 | print Q<<"EOF" ; |
529 | # |
530 | #/* INCLUDE: Including '$_' from '$filename' */ |
531 | # |
532 | EOF |
533 | |
8fc38fda |
534 | $filename = $_ ; |
535 | |
c07a80fd |
536 | # Prime the pump by reading the first |
537 | # non-blank line |
538 | |
539 | # skip leading blank lines |
540 | while (<$FH>) { |
541 | last unless /^\s*$/ ; |
542 | } |
543 | |
544 | $lastline = $_ ; |
8fc38fda |
545 | $lastline_no = $. ; |
546 | |
547 | } |
548 | |
549 | sub PopFile() |
550 | { |
4230ab3f |
551 | return 0 unless $XSStack[-1]{type} eq 'file' ; |
552 | |
553 | my $data = pop @XSStack ; |
8fc38fda |
554 | my $ThisFile = $filename ; |
555 | my $isPipe = ($filename =~ /\|\s*$/) ; |
556 | |
557 | -- $IncludedFiles{$filename} |
558 | unless $isPipe ; |
559 | |
c07a80fd |
560 | close $FH ; |
8fc38fda |
561 | |
c07a80fd |
562 | $FH = $data->{Handle} ; |
8fc38fda |
563 | $filename = $data->{Filename} ; |
564 | $lastline = $data->{LastLine} ; |
565 | $lastline_no = $data->{LastLineNo} ; |
566 | @line = @{ $data->{Line} } ; |
567 | @line_no = @{ $data->{LineNo} } ; |
4230ab3f |
568 | |
8fc38fda |
569 | if ($isPipe and $? ) { |
570 | -- $lastline_no ; |
571 | print STDERR "Error reading from pipe '$ThisFile': $! in $filename, line $lastline_no\n" ; |
572 | exit 1 ; |
573 | } |
574 | |
575 | print Q<<"EOF" ; |
576 | # |
577 | #/* INCLUDE: Returning to '$filename' from '$ThisFile' */ |
578 | # |
579 | EOF |
580 | |
581 | return 1 ; |
582 | } |
583 | |
382b8d97 |
584 | sub ValidProtoString ($) |
585 | { |
586 | my($string) = @_ ; |
587 | |
588 | if ( $string =~ /^$proto_re+$/ ) { |
589 | return $string ; |
590 | } |
591 | |
592 | return 0 ; |
593 | } |
594 | |
595 | sub C_string ($) |
596 | { |
597 | my($string) = @_ ; |
598 | |
599 | $string =~ s[\\][\\\\]g ; |
600 | $string ; |
601 | } |
602 | |
603 | sub ProtoString ($) |
604 | { |
605 | my ($type) = @_ ; |
606 | |
93d3b392 |
607 | $proto_letter{$type} or "\$" ; |
382b8d97 |
608 | } |
609 | |
8e07c86e |
610 | sub check_cpp { |
611 | my @cpp = grep(/^\#\s*(?:if|e\w+)/, @line); |
612 | if (@cpp) { |
613 | my ($cpp, $cpplevel); |
614 | for $cpp (@cpp) { |
615 | if ($cpp =~ /^\#\s*if/) { |
616 | $cpplevel++; |
617 | } elsif (!$cpplevel) { |
618 | Warn("Warning: #else/elif/endif without #if in this function"); |
4230ab3f |
619 | print STDERR " (precede it with a blank line if the matching #if is outside the function)\n" |
620 | if $XSStack[-1]{type} eq 'if'; |
8e07c86e |
621 | return; |
622 | } elsif ($cpp =~ /^\#\s*endif/) { |
623 | $cpplevel--; |
624 | } |
625 | } |
626 | Warn("Warning: #if without #endif in this function") if $cpplevel; |
627 | } |
628 | } |
629 | |
630 | |
8990e307 |
631 | sub Q { |
e50aee73 |
632 | my($text) = @_; |
4633a7c4 |
633 | $text =~ s/^#//gm; |
2304df62 |
634 | $text =~ s/\[\[/{/g; |
635 | $text =~ s/\]\]/}/g; |
8990e307 |
636 | $text; |
93a17b20 |
637 | } |
638 | |
c07a80fd |
639 | open($FH, $filename) or die "cannot open $filename: $!\n"; |
c2960299 |
640 | |
f06db76b |
641 | # Identify the version of xsubpp used |
f06db76b |
642 | print <<EOM ; |
e50aee73 |
643 | /* |
644 | * This file was generated automatically by xsubpp version $XSUBPP_version from the |
93d3b392 |
645 | * contents of $filename. Do not edit this file, edit $filename instead. |
e50aee73 |
646 | * |
647 | * ANY CHANGES MADE HERE WILL BE LOST! |
f06db76b |
648 | * |
649 | */ |
e50aee73 |
650 | |
f06db76b |
651 | EOM |
e1f0c0aa |
652 | print "#line 1 \"$filename\"\n"; |
f06db76b |
653 | |
c07a80fd |
654 | while (<$FH>) { |
e50aee73 |
655 | last if ($Module, $Package, $Prefix) = |
656 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/; |
a0d0e21e |
657 | print $_; |
93a17b20 |
658 | } |
e50aee73 |
659 | &Exit unless defined $_; |
660 | |
8fc38fda |
661 | $lastline = $_; |
662 | $lastline_no = $.; |
93a17b20 |
663 | |
c07a80fd |
664 | # Read next xsub into @line from ($lastline, <$FH>). |
2304df62 |
665 | sub fetch_para { |
666 | # parse paragraph |
4230ab3f |
667 | death ("Error: Unterminated `#if/#ifdef/#ifndef'") |
668 | if !defined $lastline && $XSStack[-1]{type} eq 'if'; |
2304df62 |
669 | @line = (); |
c2960299 |
670 | @line_no = () ; |
4230ab3f |
671 | return PopFile() if !defined $lastline; |
e50aee73 |
672 | |
673 | if ($lastline =~ |
674 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/) { |
675 | $Module = $1; |
8e07c86e |
676 | $Package = defined($2) ? $2 : ''; # keep -w happy |
677 | $Prefix = defined($3) ? $3 : ''; # keep -w happy |
ff68c719 |
678 | $Prefix = quotemeta $Prefix ; |
e50aee73 |
679 | ($Module_cname = $Module) =~ s/\W/_/g; |
8e07c86e |
680 | ($Packid = $Package) =~ tr/:/_/; |
e50aee73 |
681 | $Packprefix = $Package; |
8e07c86e |
682 | $Packprefix .= "::" if $Packprefix ne ""; |
2304df62 |
683 | $lastline = ""; |
e50aee73 |
684 | } |
685 | |
686 | for(;;) { |
687 | if ($lastline !~ /^\s*#/ || |
4230ab3f |
688 | # CPP directives: |
689 | # ANSI: if ifdef ifndef elif else endif define undef |
690 | # line error pragma |
691 | # gcc: warning include_next |
692 | # obj-c: import |
693 | # others: ident (gcc notes that some cpps have this one) |
694 | $lastline =~ /^#[ \t]*(?:(?:if|ifn?def|elif|else|endif|define|undef|pragma|error|warning|line\s+\d+|ident)\b|(?:include(?:_next)?|import)\s*["<].*[>"])/) { |
e50aee73 |
695 | last if $lastline =~ /^\S/ && @line && $line[-1] eq ""; |
696 | push(@line, $lastline); |
697 | push(@line_no, $lastline_no) ; |
93a17b20 |
698 | } |
e50aee73 |
699 | |
700 | # Read next line and continuation lines |
c07a80fd |
701 | last unless defined($lastline = <$FH>); |
e50aee73 |
702 | $lastline_no = $.; |
703 | my $tmp_line; |
704 | $lastline .= $tmp_line |
c07a80fd |
705 | while ($lastline =~ /\\$/ && defined($tmp_line = <$FH>)); |
e50aee73 |
706 | |
8e07c86e |
707 | chomp $lastline; |
e50aee73 |
708 | $lastline =~ s/^\s+$//; |
2304df62 |
709 | } |
e50aee73 |
710 | pop(@line), pop(@line_no) while @line && $line[-1] eq ""; |
e50aee73 |
711 | 1; |
2304df62 |
712 | } |
93a17b20 |
713 | |
c2960299 |
714 | PARAGRAPH: |
8e07c86e |
715 | while (fetch_para()) { |
e50aee73 |
716 | # Print initial preprocessor statements and blank lines |
4230ab3f |
717 | while (@line && $line[0] !~ /^[^\#]/) { |
718 | my $line = shift(@line); |
719 | print $line, "\n"; |
720 | next unless $line =~ /^\#\s*((if)(?:n?def)?|elsif|else|endif)\b/; |
721 | my $statement = $+; |
722 | if ($statement eq 'if') { |
723 | $XSS_work_idx = @XSStack; |
724 | push(@XSStack, {type => 'if'}); |
725 | } else { |
726 | death ("Error: `$statement' with no matching `if'") |
727 | if $XSStack[-1]{type} ne 'if'; |
728 | if ($XSStack[-1]{varname}) { |
729 | push(@InitFileCode, "#endif\n"); |
730 | push(@BootCode, "#endif"); |
731 | } |
732 | |
733 | my(@fns) = keys %{$XSStack[-1]{functions}}; |
734 | if ($statement ne 'endif') { |
735 | # Hide the functions defined in other #if branches, and reset. |
736 | @{$XSStack[-1]{other_functions}}{@fns} = (1) x @fns; |
737 | @{$XSStack[-1]}{qw(varname functions)} = ('', {}); |
738 | } else { |
739 | my($tmp) = pop(@XSStack); |
740 | 0 while (--$XSS_work_idx |
741 | && $XSStack[$XSS_work_idx]{type} ne 'if'); |
742 | # Keep all new defined functions |
743 | push(@fns, keys %{$tmp->{other_functions}}); |
744 | @{$XSStack[$XSS_work_idx]{functions}}{@fns} = (1) x @fns; |
745 | } |
746 | } |
747 | } |
e50aee73 |
748 | |
749 | next PARAGRAPH unless @line; |
750 | |
4230ab3f |
751 | if ($XSS_work_idx && !$XSStack[$XSS_work_idx]{varname}) { |
752 | # We are inside an #if, but have not yet #defined its xsubpp variable. |
753 | print "#define $cpp_next_tmp 1\n\n"; |
754 | push(@InitFileCode, "#if $cpp_next_tmp\n"); |
755 | push(@BootCode, "#if $cpp_next_tmp"); |
756 | $XSStack[$XSS_work_idx]{varname} = $cpp_next_tmp++; |
757 | } |
758 | |
55497cff |
759 | death ("Code is not inside a function" |
760 | ." (maybe last function was ended by a blank line " |
761 | ." followed by a a statement on column one?)") |
e50aee73 |
762 | if $line[0] =~ /^\s/; |
763 | |
2304df62 |
764 | # initialize info arrays |
765 | undef(%args_match); |
766 | undef(%var_types); |
767 | undef(%var_addr); |
768 | undef(%defaults); |
769 | undef($class); |
770 | undef($static); |
771 | undef($elipsis); |
f06db76b |
772 | undef($wantRETVAL) ; |
773 | undef(%arg_list) ; |
382b8d97 |
774 | undef(@proto_arg) ; |
c07a80fd |
775 | undef($proto_in_this_xsub) ; |
db3b9414 |
776 | undef($scope_in_this_xsub) ; |
382b8d97 |
777 | $ProtoThisXSUB = $WantPrototypes ; |
db3b9414 |
778 | $ScopeThisXSUB = 0; |
2304df62 |
779 | |
8e07c86e |
780 | $_ = shift(@line); |
8fc38fda |
781 | while ($kwd = check_keyword("REQUIRE|PROTOTYPES|VERSIONCHECK|INCLUDE")) { |
782 | &{"${kwd}_handler"}() ; |
8e07c86e |
783 | next PARAGRAPH unless @line ; |
784 | $_ = shift(@line); |
785 | } |
c2960299 |
786 | |
8e07c86e |
787 | if (check_keyword("BOOT")) { |
788 | &check_cpp; |
e1f0c0aa |
789 | push (@BootCode, $_, line_directive(), @line, "") ; |
c2960299 |
790 | next PARAGRAPH ; |
a0d0e21e |
791 | } |
c2960299 |
792 | |
8e07c86e |
793 | |
794 | # extract return type, function name and arguments |
795 | my($ret_type) = TidyType($_); |
796 | |
c2960299 |
797 | # a function definition needs at least 2 lines |
798 | blurt ("Error: Function definition too short '$ret_type'"), next PARAGRAPH |
799 | unless @line ; |
800 | |
8e07c86e |
801 | $static = 1 if $ret_type =~ s/^static\s+//; |
802 | |
2304df62 |
803 | $func_header = shift(@line); |
c2960299 |
804 | blurt ("Error: Cannot parse function definition from '$func_header'"), next PARAGRAPH |
8e07c86e |
805 | unless $func_header =~ /^(?:([\w:]*)::)?(\w+)\s*\(\s*(.*?)\s*\)\s*$/s; |
c2960299 |
806 | |
8e07c86e |
807 | ($class, $func_name, $orig_args) = ($1, $2, $3) ; |
2304df62 |
808 | ($pname = $func_name) =~ s/^($Prefix)?/$Packprefix/; |
ff68c719 |
809 | ($clean_func_name = $func_name) =~ s/^$Prefix//; |
810 | $Full_func_name = "${Packid}_$clean_func_name"; |
ff0cee69 |
811 | if ($Is_VMS) { $Full_func_name = $SymSet->addsym($Full_func_name); } |
c2960299 |
812 | |
813 | # Check for duplicate function definition |
4230ab3f |
814 | for $tmp (@XSStack) { |
815 | next unless defined $tmp->{functions}{$Full_func_name}; |
ff68c719 |
816 | Warn("Warning: duplicate function definition '$clean_func_name' detected"); |
4230ab3f |
817 | last; |
8e07c86e |
818 | } |
4230ab3f |
819 | $XSStack[$XSS_work_idx]{functions}{$Full_func_name} ++ ; |
820 | %XsubAliases = %XsubAliasValues = (); |
c2960299 |
821 | |
2304df62 |
822 | @args = split(/\s*,\s*/, $orig_args); |
a0d0e21e |
823 | if (defined($class)) { |
8fc38fda |
824 | my $arg0 = ((defined($static) or $func_name =~ /^new/) ? "CLASS" : "THIS"); |
8e07c86e |
825 | unshift(@args, $arg0); |
826 | ($orig_args = "$arg0, $orig_args") =~ s/^$arg0, $/$arg0/; |
2304df62 |
827 | } |
828 | $orig_args =~ s/"/\\"/g; |
829 | $min_args = $num_args = @args; |
830 | foreach $i (0..$num_args-1) { |
831 | if ($args[$i] =~ s/\.\.\.//) { |
832 | $elipsis = 1; |
833 | $min_args--; |
c2960299 |
834 | if ($args[$i] eq '' && $i == $num_args - 1) { |
2304df62 |
835 | pop(@args); |
836 | last; |
837 | } |
838 | } |
8e07c86e |
839 | if ($args[$i] =~ /^([^=]*[^\s=])\s*=\s*(.*)/s) { |
2304df62 |
840 | $min_args--; |
841 | $args[$i] = $1; |
842 | $defaults{$args[$i]} = $2; |
843 | $defaults{$args[$i]} =~ s/"/\\"/g; |
844 | } |
93d3b392 |
845 | $proto_arg[$i+1] = "\$" ; |
2304df62 |
846 | } |
a0d0e21e |
847 | if (defined($class)) { |
2304df62 |
848 | $func_args = join(", ", @args[1..$#args]); |
849 | } else { |
850 | $func_args = join(", ", @args); |
851 | } |
852 | @args_match{@args} = 1..@args; |
853 | |
8e07c86e |
854 | $PPCODE = grep(/^\s*PPCODE\s*:/, @line); |
93d3b392 |
855 | $CODE = grep(/^\s*CODE\s*:/, @line); |
6c5fb52b |
856 | # Detect CODE: blocks which use ST(n)= or XST_m*(n,v) |
857 | # to set explicit return values. |
858 | $EXPLICIT_RETURN = ($CODE && |
859 | ("@line" =~ /(\bST\s*\([^;]*=) | (\bXST_m\w+\s*\()/x )); |
8e07c86e |
860 | $ALIAS = grep(/^\s*ALIAS\s*:/, @line); |
861 | |
2304df62 |
862 | # print function header |
a0d0e21e |
863 | print Q<<"EOF"; |
ff68c719 |
864 | #XS(XS_${Full_func_name}) |
2304df62 |
865 | #[[ |
a0d0e21e |
866 | # dXSARGS; |
93a17b20 |
867 | EOF |
8e07c86e |
868 | print Q<<"EOF" if $ALIAS ; |
869 | # dXSI32; |
870 | EOF |
2304df62 |
871 | if ($elipsis) { |
8e07c86e |
872 | $cond = ($min_args ? qq(items < $min_args) : 0); |
2304df62 |
873 | } |
874 | elsif ($min_args == $num_args) { |
875 | $cond = qq(items != $min_args); |
876 | } |
877 | else { |
878 | $cond = qq(items < $min_args || items > $num_args); |
879 | } |
8990e307 |
880 | |
2304df62 |
881 | print Q<<"EOF" if $except; |
882 | # char errbuf[1024]; |
883 | # *errbuf = '\0'; |
884 | EOF |
885 | |
8e07c86e |
886 | if ($ALIAS) |
887 | { print Q<<"EOF" if $cond } |
888 | # if ($cond) |
889 | # croak("Usage: %s($orig_args)", GvNAME(CvGV(cv))); |
890 | EOF |
891 | else |
892 | { print Q<<"EOF" if $cond } |
893 | # if ($cond) |
8990e307 |
894 | # croak("Usage: $pname($orig_args)"); |
93a17b20 |
895 | EOF |
896 | |
a0d0e21e |
897 | print Q<<"EOF" if $PPCODE; |
898 | # SP -= items; |
899 | EOF |
900 | |
2304df62 |
901 | # Now do a block of some sort. |
93a17b20 |
902 | |
2304df62 |
903 | $condnum = 0; |
8e07c86e |
904 | $cond = ''; # last CASE: condidional |
905 | push(@line, "$END:"); |
906 | push(@line_no, $line_no[-1]); |
907 | $_ = ''; |
908 | &check_cpp; |
2304df62 |
909 | while (@line) { |
8e07c86e |
910 | &CASE_handler if check_keyword("CASE"); |
911 | print Q<<"EOF"; |
912 | # $except [[ |
93a17b20 |
913 | EOF |
914 | |
915 | # do initialization of input variables |
916 | $thisdone = 0; |
917 | $retvaldone = 0; |
463ee0b2 |
918 | $deferred = ""; |
c2960299 |
919 | %arg_list = () ; |
920 | $gotRETVAL = 0; |
f06db76b |
921 | |
8fc38fda |
922 | INPUT_handler() ; |
db3b9414 |
923 | process_keyword("INPUT|PREINIT|ALIAS|PROTOTYPE|SCOPE") ; |
8fc38fda |
924 | |
db3b9414 |
925 | print Q<<"EOF" if $ScopeThisXSUB; |
926 | # ENTER; |
927 | # [[ |
928 | EOF |
929 | |
a0d0e21e |
930 | if (!$thisdone && defined($class)) { |
8fc38fda |
931 | if (defined($static) or $func_name =~ /^new/) { |
a0d0e21e |
932 | print "\tchar *"; |
933 | $var_types{"CLASS"} = "char *"; |
934 | &generate_init("char *", 1, "CLASS"); |
935 | } |
936 | else { |
93a17b20 |
937 | print "\t$class *"; |
938 | $var_types{"THIS"} = "$class *"; |
939 | &generate_init("$class *", 1, "THIS"); |
a0d0e21e |
940 | } |
93a17b20 |
941 | } |
942 | |
943 | # do code |
944 | if (/^\s*NOT_IMPLEMENTED_YET/) { |
4633a7c4 |
945 | print "\n\tcroak(\"$pname: not implemented yet\");\n"; |
946 | $_ = '' ; |
93a17b20 |
947 | } else { |
948 | if ($ret_type ne "void") { |
949 | print "\t" . &map_type($ret_type) . "\tRETVAL;\n" |
950 | if !$retvaldone; |
951 | $args_match{"RETVAL"} = 0; |
952 | $var_types{"RETVAL"} = $ret_type; |
953 | } |
db3b9414 |
954 | |
8e07c86e |
955 | print $deferred; |
db3b9414 |
956 | |
957 | process_keyword("INIT|ALIAS|PROTOTYPE") ; |
8e07c86e |
958 | |
959 | if (check_keyword("PPCODE")) { |
8fc38fda |
960 | print_section(); |
8e07c86e |
961 | death ("PPCODE must be last thing") if @line; |
db3b9414 |
962 | print "\tLEAVE;\n" if $ScopeThisXSUB; |
a0d0e21e |
963 | print "\tPUTBACK;\n\treturn;\n"; |
8e07c86e |
964 | } elsif (check_keyword("CODE")) { |
8fc38fda |
965 | print_section() ; |
966 | } elsif (defined($class) and $func_name eq "DESTROY") { |
a0d0e21e |
967 | print "\n\t"; |
8e07c86e |
968 | print "delete THIS;\n"; |
93a17b20 |
969 | } else { |
970 | print "\n\t"; |
971 | if ($ret_type ne "void") { |
463ee0b2 |
972 | print "RETVAL = "; |
e50aee73 |
973 | $wantRETVAL = 1; |
93a17b20 |
974 | } |
975 | if (defined($static)) { |
a0d0e21e |
976 | if ($func_name =~ /^new/) { |
8fc38fda |
977 | $func_name = "$class"; |
8e07c86e |
978 | } else { |
979 | print "${class}::"; |
a0d0e21e |
980 | } |
93a17b20 |
981 | } elsif (defined($class)) { |
8fc38fda |
982 | if ($func_name =~ /^new/) { |
983 | $func_name .= " $class"; |
984 | } else { |
93a17b20 |
985 | print "THIS->"; |
8fc38fda |
986 | } |
93a17b20 |
987 | } |
e50aee73 |
988 | $func_name =~ s/^($spat)// |
989 | if defined($spat); |
93a17b20 |
990 | print "$func_name($func_args);\n"; |
93a17b20 |
991 | } |
992 | } |
993 | |
994 | # do output variables |
8e07c86e |
995 | $gotRETVAL = 0; |
996 | undef $RETVAL_code ; |
997 | undef %outargs ; |
8fc38fda |
998 | process_keyword("OUTPUT|ALIAS|PROTOTYPE"); |
f06db76b |
999 | |
1000 | # all OUTPUT done, so now push the return value on the stack |
8e07c86e |
1001 | if ($gotRETVAL && $RETVAL_code) { |
1002 | print "\t$RETVAL_code\n"; |
1003 | } elsif ($gotRETVAL || $wantRETVAL) { |
1004 | &generate_output($ret_type, 0, 'RETVAL'); |
1005 | } |
e1f0c0aa |
1006 | print line_directive(); |
f06db76b |
1007 | |
93a17b20 |
1008 | # do cleanup |
8fc38fda |
1009 | process_keyword("CLEANUP|ALIAS|PROTOTYPE") ; |
8e07c86e |
1010 | |
db3b9414 |
1011 | print Q<<"EOF" if $ScopeThisXSUB; |
1012 | # ]] |
1013 | EOF |
1014 | print Q<<"EOF" if $ScopeThisXSUB and not $PPCODE; |
1015 | # LEAVE; |
1016 | EOF |
1017 | |
93a17b20 |
1018 | # print function trailer |
8e07c86e |
1019 | print Q<<EOF; |
2304df62 |
1020 | # ]] |
8e07c86e |
1021 | EOF |
1022 | print Q<<EOF if $except; |
8990e307 |
1023 | # BEGHANDLERS |
1024 | # CATCHALL |
1025 | # sprintf(errbuf, "%s: %s\\tpropagated", Xname, Xreason); |
1026 | # ENDHANDLERS |
93a17b20 |
1027 | EOF |
8e07c86e |
1028 | if (check_keyword("CASE")) { |
1029 | blurt ("Error: No `CASE:' at top of function") |
1030 | unless $condnum; |
1031 | $_ = "CASE: $_"; # Restore CASE: label |
1032 | next; |
8990e307 |
1033 | } |
8e07c86e |
1034 | last if $_ eq "$END:"; |
1035 | death(/^$BLOCK_re/o ? "Misplaced `$1:'" : "Junk at end of function"); |
2304df62 |
1036 | } |
a0d0e21e |
1037 | |
2304df62 |
1038 | print Q<<EOF if $except; |
1039 | # if (errbuf[0]) |
1040 | # croak(errbuf); |
1041 | EOF |
a0d0e21e |
1042 | |
7c5b83de |
1043 | if ($ret_type ne "void" or $EXPLICIT_RETURN) { |
93d3b392 |
1044 | print Q<<EOF unless $PPCODE; |
a0d0e21e |
1045 | # XSRETURN(1); |
1046 | EOF |
93d3b392 |
1047 | } else { |
1048 | print Q<<EOF unless $PPCODE; |
1049 | # XSRETURN_EMPTY; |
1050 | EOF |
1051 | } |
a0d0e21e |
1052 | |
2304df62 |
1053 | print Q<<EOF; |
2304df62 |
1054 | #]] |
8990e307 |
1055 | # |
93a17b20 |
1056 | EOF |
382b8d97 |
1057 | |
4230ab3f |
1058 | my $newXS = "newXS" ; |
1059 | my $proto = "" ; |
1060 | |
382b8d97 |
1061 | # Build the prototype string for the xsub |
1062 | if ($ProtoThisXSUB) { |
4230ab3f |
1063 | $newXS = "newXSproto"; |
1064 | |
1065 | if ($ProtoThisXSUB == 2) { |
1066 | # User has specified empty prototype |
1067 | $proto = ', ""' ; |
1068 | } |
7d41bd0a |
1069 | elsif ($ProtoThisXSUB != 1) { |
1070 | # User has specified a prototype |
4230ab3f |
1071 | $proto = ', "' . $ProtoThisXSUB . '"'; |
382b8d97 |
1072 | } |
1073 | else { |
1074 | my $s = ';'; |
1075 | if ($min_args < $num_args) { |
1076 | $s = ''; |
1077 | $proto_arg[$min_args] .= ";" ; |
1078 | } |
4230ab3f |
1079 | push @proto_arg, "$s\@" |
382b8d97 |
1080 | if $elipsis ; |
1081 | |
4230ab3f |
1082 | $proto = ', "' . join ("", @proto_arg) . '"'; |
382b8d97 |
1083 | } |
1084 | } |
1085 | |
4230ab3f |
1086 | if (%XsubAliases) { |
1087 | $XsubAliases{$pname} = 0 |
1088 | unless defined $XsubAliases{$pname} ; |
1089 | while ( ($name, $value) = each %XsubAliases) { |
1090 | push(@InitFileCode, Q<<"EOF"); |
1091 | # cv = newXS(\"$name\", XS_$Full_func_name, file); |
1092 | # XSANY.any_i32 = $value ; |
1093 | EOF |
1094 | push(@InitFileCode, Q<<"EOF") if $proto; |
1095 | # sv_setpv((SV*)cv$proto) ; |
1096 | EOF |
1097 | } |
1098 | } |
1099 | else { |
1100 | push(@InitFileCode, |
1101 | " ${newXS}(\"$pname\", XS_$Full_func_name, file$proto);\n"); |
1102 | } |
93a17b20 |
1103 | } |
1104 | |
1105 | # print initialization routine |
8990e307 |
1106 | print Q<<"EOF"; |
4633a7c4 |
1107 | ##ifdef __cplusplus |
1108 | #extern "C" |
1109 | ##endif |
a0d0e21e |
1110 | #XS(boot_$Module_cname) |
2304df62 |
1111 | #[[ |
a0d0e21e |
1112 | # dXSARGS; |
8990e307 |
1113 | # char* file = __FILE__; |
1114 | # |
93a17b20 |
1115 | EOF |
1116 | |
8fc38fda |
1117 | print Q<<"EOF" if $WantVersionChk ; |
1118 | # XS_VERSION_BOOTCHECK ; |
1119 | # |
1120 | EOF |
1121 | |
4230ab3f |
1122 | print Q<<"EOF" if defined $XsubAliases ; |
8e07c86e |
1123 | # { |
1124 | # CV * cv ; |
1125 | # |
1126 | EOF |
1127 | |
4230ab3f |
1128 | print @InitFileCode; |
a0d0e21e |
1129 | |
4230ab3f |
1130 | print Q<<"EOF" if defined $XsubAliases ; |
8e07c86e |
1131 | # } |
1132 | EOF |
1133 | |
a0d0e21e |
1134 | if (@BootCode) |
1135 | { |
8e07c86e |
1136 | print "\n /* Initialisation Section */\n" ; |
a0d0e21e |
1137 | print grep (s/$/\n/, @BootCode) ; |
8e07c86e |
1138 | print "\n /* End of Initialisation Section */\n\n" ; |
93a17b20 |
1139 | } |
a0d0e21e |
1140 | |
e50aee73 |
1141 | print Q<<"EOF";; |
1142 | # ST(0) = &sv_yes; |
1143 | # XSRETURN(1); |
1144 | #]] |
1145 | EOF |
1146 | |
8fc38fda |
1147 | warn("Please specify prototyping behavior for $filename (see perlxs manual)\n") |
1148 | unless $ProtoUsed ; |
e50aee73 |
1149 | &Exit; |
1150 | |
93a17b20 |
1151 | |
1152 | sub output_init { |
2304df62 |
1153 | local($type, $num, $init) = @_; |
a0d0e21e |
1154 | local($arg) = "ST(" . ($num - 1) . ")"; |
93a17b20 |
1155 | |
2304df62 |
1156 | eval qq/print " $init\\\n"/; |
93a17b20 |
1157 | } |
1158 | |
e1f0c0aa |
1159 | sub line_directive |
1160 | { |
1161 | # work out the line number |
1162 | my $line_no = $line_no[@line_no - @line -1] ; |
1163 | |
1164 | return "#line $line_no \"$filename\"\n" ; |
1165 | |
1166 | } |
1167 | |
c2960299 |
1168 | sub Warn |
1169 | { |
1170 | # work out the line number |
1171 | my $line_no = $line_no[@line_no - @line -1] ; |
1172 | |
1173 | print STDERR "@_ in $filename, line $line_no\n" ; |
1174 | } |
1175 | |
1176 | sub blurt |
1177 | { |
1178 | Warn @_ ; |
1179 | $errors ++ |
1180 | } |
1181 | |
1182 | sub death |
1183 | { |
1184 | Warn @_ ; |
1185 | exit 1 ; |
1186 | } |
8990e307 |
1187 | |
93a17b20 |
1188 | sub generate_init { |
2304df62 |
1189 | local($type, $num, $var) = @_; |
a0d0e21e |
1190 | local($arg) = "ST(" . ($num - 1) . ")"; |
2304df62 |
1191 | local($argoff) = $num - 1; |
1192 | local($ntype); |
1193 | local($tk); |
93a17b20 |
1194 | |
f06db76b |
1195 | $type = TidyType($type) ; |
c2960299 |
1196 | blurt("Error: '$type' not in typemap"), return |
1197 | unless defined($type_kind{$type}); |
1198 | |
2304df62 |
1199 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
8e07c86e |
1200 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 |
1201 | $tk = $type_kind{$type}; |
1202 | $tk =~ s/OBJ$/REF/ if $func_name =~ /DESTROY$/; |
8e07c86e |
1203 | $type =~ tr/:/_/; |
c2960299 |
1204 | blurt("Error: No INPUT definition for type '$type' found"), return |
1205 | unless defined $input_expr{$tk} ; |
2304df62 |
1206 | $expr = $input_expr{$tk}; |
1207 | if ($expr =~ /DO_ARRAY_ELEM/) { |
c2960299 |
1208 | blurt("Error: '$subtype' not in typemap"), return |
1209 | unless defined($type_kind{$subtype}); |
1210 | blurt("Error: No INPUT definition for type '$subtype' found"), return |
1211 | unless defined $input_expr{$type_kind{$subtype}} ; |
2304df62 |
1212 | $subexpr = $input_expr{$type_kind{$subtype}}; |
1213 | $subexpr =~ s/ntype/subtype/g; |
1214 | $subexpr =~ s/\$arg/ST(ix_$var)/g; |
1215 | $subexpr =~ s/\n\t/\n\t\t/g; |
93d3b392 |
1216 | $subexpr =~ s/is not of (.*\")/[arg %d] is not of $1, ix_$var + 1/g; |
a0d0e21e |
1217 | $subexpr =~ s/\$var/${var}[ix_$var - $argoff]/; |
2304df62 |
1218 | $expr =~ s/DO_ARRAY_ELEM/$subexpr/; |
1219 | } |
db3b9414 |
1220 | if ($expr =~ m#/\*.*scope.*\*/#i) { # "scope" in C comments |
1221 | $ScopeThisXSUB = 1; |
1222 | } |
2304df62 |
1223 | if (defined($defaults{$var})) { |
1224 | $expr =~ s/(\t+)/$1 /g; |
1225 | $expr =~ s/ /\t/g; |
1226 | eval qq/print "\\t$var;\\n"/; |
1227 | $deferred .= eval qq/"\\n\\tif (items < $num)\\n\\t $var = $defaults{$var};\\n\\telse {\\n$expr;\\n\\t}\\n"/; |
db3b9414 |
1228 | } elsif ($ScopeThisXSUB or $expr !~ /^\t\$var =/) { |
2304df62 |
1229 | eval qq/print "\\t$var;\\n"/; |
1230 | $deferred .= eval qq/"\\n$expr;\\n"/; |
1231 | } else { |
1232 | eval qq/print "$expr;\\n"/; |
1233 | } |
93a17b20 |
1234 | } |
1235 | |
1236 | sub generate_output { |
2304df62 |
1237 | local($type, $num, $var) = @_; |
a0d0e21e |
1238 | local($arg) = "ST(" . ($num - ($num != 0)) . ")"; |
2304df62 |
1239 | local($argoff) = $num - 1; |
1240 | local($ntype); |
93a17b20 |
1241 | |
f06db76b |
1242 | $type = TidyType($type) ; |
2304df62 |
1243 | if ($type =~ /^array\(([^,]*),(.*)\)/) { |
1244 | print "\tsv_setpvn($arg, (char *)$var, $2 * sizeof($1)), XFree((char *)$var);\n"; |
1245 | } else { |
f06db76b |
1246 | blurt("Error: '$type' not in typemap"), return |
2304df62 |
1247 | unless defined($type_kind{$type}); |
c2960299 |
1248 | blurt("Error: No OUTPUT definition for type '$type' found"), return |
1249 | unless defined $output_expr{$type_kind{$type}} ; |
2304df62 |
1250 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
1251 | $ntype =~ s/\(\)//g; |
8e07c86e |
1252 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 |
1253 | $expr = $output_expr{$type_kind{$type}}; |
1254 | if ($expr =~ /DO_ARRAY_ELEM/) { |
c2960299 |
1255 | blurt("Error: '$subtype' not in typemap"), return |
1256 | unless defined($type_kind{$subtype}); |
1257 | blurt("Error: No OUTPUT definition for type '$subtype' found"), return |
1258 | unless defined $output_expr{$type_kind{$subtype}} ; |
2304df62 |
1259 | $subexpr = $output_expr{$type_kind{$subtype}}; |
1260 | $subexpr =~ s/ntype/subtype/g; |
1261 | $subexpr =~ s/\$arg/ST(ix_$var)/g; |
1262 | $subexpr =~ s/\$var/${var}[ix_$var]/g; |
1263 | $subexpr =~ s/\n\t/\n\t\t/g; |
1264 | $expr =~ s/DO_ARRAY_ELEM\n/$subexpr/; |
a0d0e21e |
1265 | eval "print qq\a$expr\a"; |
2304df62 |
1266 | } |
a0d0e21e |
1267 | elsif ($var eq 'RETVAL') { |
a2baab1c |
1268 | if ($expr =~ /^\t\$arg = new/) { |
1269 | # We expect that $arg has refcnt 1, so we need to |
1270 | # mortalize it. |
a0d0e21e |
1271 | eval "print qq\a$expr\a"; |
2304df62 |
1272 | print "\tsv_2mortal(ST(0));\n"; |
93a17b20 |
1273 | } |
a2baab1c |
1274 | elsif ($expr =~ /^\s*\$arg\s*=/) { |
1275 | # We expect that $arg has refcnt >=1, so we need |
1276 | # to mortalize it. However, the extension may have |
1277 | # returned the built-in perl value, which is |
1278 | # read-only, thus not mortalizable. However, it is |
1279 | # safe to leave it as it is, since it would be |
1280 | # ignored by REFCNT_dec. Builtin values have REFCNT==0. |
1281 | eval "print qq\a$expr\a"; |
1282 | print "\tif (SvREFCNT(ST(0))) sv_2mortal(ST(0));\n"; |
1283 | } |
2304df62 |
1284 | else { |
a2baab1c |
1285 | # Just hope that the entry would safely write it |
1286 | # over an already mortalized value. By |
1287 | # coincidence, something like $arg = &sv_undef |
1288 | # works too. |
8990e307 |
1289 | print "\tST(0) = sv_newmortal();\n"; |
a0d0e21e |
1290 | eval "print qq\a$expr\a"; |
463ee0b2 |
1291 | } |
2304df62 |
1292 | } |
a0d0e21e |
1293 | elsif ($arg =~ /^ST\(\d+\)$/) { |
1294 | eval "print qq\a$expr\a"; |
1295 | } |
2304df62 |
1296 | } |
93a17b20 |
1297 | } |
1298 | |
1299 | sub map_type { |
e50aee73 |
1300 | my($type) = @_; |
93a17b20 |
1301 | |
8e07c86e |
1302 | $type =~ tr/:/_/; |
1303 | $type =~ s/^array\(([^,]*),(.*)\).*/$1 */s; |
1304 | $type; |
93a17b20 |
1305 | } |
8990e307 |
1306 | |
e50aee73 |
1307 | |
1308 | sub Exit { |
ff0cee69 |
1309 | # If this is VMS, the exit status has meaning to the shell, so we |
1310 | # use a predictable value (SS$_Normal or SS$_Abort) rather than an |
1311 | # arbitrary number. |
1312 | # exit ($Is_VMS ? ($errors ? 44 : 1) : $errors) ; |
1313 | exit ($errors ? 1 : 0); |
e50aee73 |
1314 | } |