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 | |
55a00e51 |
74 | perl(1), perlxs(1), perlxstut(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) = $ARGV[0] =~ m#(.*)/(.*)# |
57497940 |
130 | or ($dir, $filename) = $ARGV[0] =~ m#(.*)\\(.*)# |
c2960299 |
131 | or ($dir, $filename) = $ARGV[0] =~ m#(.*[>\]])(.*)# |
8990e307 |
132 | or ($dir, $filename) = ('.', $ARGV[0]); |
133 | chdir($dir); |
774d564b |
134 | $pwd = cwd(); |
8fc38fda |
135 | |
136 | ++ $IncludedFiles{$ARGV[0]} ; |
93a17b20 |
137 | |
4230ab3f |
138 | my(@XSStack) = ({type => 'none'}); # Stack of conditionals and INCLUDEs |
139 | my($XSS_work_idx, $cpp_next_tmp) = (0, "XSubPPtmpAAAA"); |
aa689395 |
140 | |
4230ab3f |
141 | |
f06db76b |
142 | sub TrimWhitespace |
143 | { |
144 | $_[0] =~ s/^\s+|\s+$//go ; |
145 | } |
146 | |
147 | sub TidyType |
148 | { |
149 | local ($_) = @_ ; |
150 | |
151 | # rationalise any '*' by joining them into bunches and removing whitespace |
152 | s#\s*(\*+)\s*#$1#g; |
e50aee73 |
153 | s#(\*+)# $1 #g ; |
f06db76b |
154 | |
155 | # change multiple whitespace into a single space |
156 | s/\s+/ /g ; |
157 | |
158 | # trim leading & trailing whitespace |
159 | TrimWhitespace($_) ; |
160 | |
161 | $_ ; |
162 | } |
163 | |
93a17b20 |
164 | $typemap = shift @ARGV; |
8990e307 |
165 | foreach $typemap (@tm) { |
166 | die "Can't find $typemap in $pwd\n" unless -r $typemap; |
93a17b20 |
167 | } |
748a9306 |
168 | unshift @tm, qw(../../../../lib/ExtUtils/typemap ../../../lib/ExtUtils/typemap |
169 | ../../lib/ExtUtils/typemap ../../../typemap ../../typemap |
170 | ../typemap typemap); |
8990e307 |
171 | foreach $typemap (@tm) { |
f06db76b |
172 | next unless -e $typemap ; |
173 | # skip directories, binary files etc. |
174 | warn("Warning: ignoring non-text typemap file '$typemap'\n"), next |
175 | unless -T $typemap ; |
176 | open(TYPEMAP, $typemap) |
177 | or warn ("Warning: could not open typemap file '$typemap': $!\n"), next; |
e50aee73 |
178 | $mode = 'Typemap'; |
c2960299 |
179 | $junk = "" ; |
8990e307 |
180 | $current = \$junk; |
181 | while (<TYPEMAP>) { |
e50aee73 |
182 | next if /^\s*#/; |
e1f0c0aa |
183 | my $line_no = $. + 1; |
8e07c86e |
184 | if (/^INPUT\s*$/) { $mode = 'Input'; $current = \$junk; next; } |
185 | if (/^OUTPUT\s*$/) { $mode = 'Output'; $current = \$junk; next; } |
186 | if (/^TYPEMAP\s*$/) { $mode = 'Typemap'; $current = \$junk; next; } |
e50aee73 |
187 | if ($mode eq 'Typemap') { |
188 | chomp; |
f06db76b |
189 | my $line = $_ ; |
190 | TrimWhitespace($_) ; |
191 | # skip blank lines and comment lines |
192 | next if /^$/ or /^#/ ; |
382b8d97 |
193 | my($type,$kind, $proto) = /^\s*(.*?\S)\s+(\S+)\s*($proto_re*)\s*$/ or |
194 | warn("Warning: File '$typemap' Line $. '$line' TYPEMAP entry needs 2 or 3 columns\n"), next; |
195 | $type = TidyType($type) ; |
196 | $type_kind{$type} = $kind ; |
197 | # prototype defaults to '$' |
93d3b392 |
198 | $proto = "\$" unless $proto ; |
382b8d97 |
199 | warn("Warning: File '$typemap' Line $. '$line' Invalid prototype '$proto'\n") |
200 | unless ValidProtoString($proto) ; |
201 | $proto_letter{$type} = C_string($proto) ; |
8e07c86e |
202 | } |
203 | elsif (/^\s/) { |
204 | $$current .= $_; |
463ee0b2 |
205 | } |
e50aee73 |
206 | elsif ($mode eq 'Input') { |
8e07c86e |
207 | s/\s+$//; |
208 | $input_expr{$_} = ''; |
209 | $current = \$input_expr{$_}; |
93a17b20 |
210 | } |
8990e307 |
211 | else { |
8e07c86e |
212 | s/\s+$//; |
213 | $output_expr{$_} = ''; |
214 | $current = \$output_expr{$_}; |
93a17b20 |
215 | } |
8990e307 |
216 | } |
217 | close(TYPEMAP); |
218 | } |
93a17b20 |
219 | |
8990e307 |
220 | foreach $key (keys %input_expr) { |
221 | $input_expr{$key} =~ s/\n+$//; |
222 | } |
93a17b20 |
223 | |
8e07c86e |
224 | $END = "!End!\n\n"; # "impossible" keyword (multiple newline) |
225 | |
226 | # Match an XS keyword |
382b8d97 |
227 | $BLOCK_re= '\s*(' . join('|', qw( |
228 | REQUIRE BOOT CASE PREINIT INPUT INIT CODE PPCODE OUTPUT |
8fc38fda |
229 | CLEANUP ALIAS PROTOTYPES PROTOTYPE VERSIONCHECK INCLUDE |
db3b9414 |
230 | SCOPE |
382b8d97 |
231 | )) . "|$END)\\s*:"; |
8e07c86e |
232 | |
233 | # Input: ($_, @line) == unparsed input. |
234 | # Output: ($_, @line) == (rest of line, following lines). |
235 | # Return: the matched keyword if found, otherwise 0 |
236 | sub check_keyword { |
237 | $_ = shift(@line) while !/\S/ && @line; |
238 | s/^(\s*)($_[0])\s*:\s*(?:#.*)?/$1/s && $2; |
239 | } |
240 | |
241 | |
242 | sub print_section { |
e1f0c0aa |
243 | my $count = 0; |
8e07c86e |
244 | $_ = shift(@line) while !/\S/ && @line; |
245 | for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) { |
e1f0c0aa |
246 | print line_directive() unless ($count++); |
8e07c86e |
247 | print "$_\n"; |
248 | } |
249 | } |
250 | |
8fc38fda |
251 | sub process_keyword($) |
252 | { |
253 | my($pattern) = @_ ; |
254 | my $kwd ; |
255 | |
256 | &{"${kwd}_handler"}() |
257 | while $kwd = check_keyword($pattern) ; |
e1f0c0aa |
258 | print line_directive(); |
8fc38fda |
259 | } |
260 | |
8e07c86e |
261 | sub CASE_handler { |
262 | blurt ("Error: `CASE:' after unconditional `CASE:'") |
263 | if $condnum && $cond eq ''; |
264 | $cond = $_; |
265 | TrimWhitespace($cond); |
266 | print " ", ($condnum++ ? " else" : ""), ($cond ? " if ($cond)\n" : "\n"); |
267 | $_ = '' ; |
268 | } |
269 | |
270 | sub INPUT_handler { |
271 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
272 | last if /^\s*NOT_IMPLEMENTED_YET/; |
273 | next unless /\S/; # skip blank lines |
274 | |
275 | TrimWhitespace($_) ; |
276 | my $line = $_ ; |
277 | |
278 | # remove trailing semicolon if no initialisation |
279 | s/\s*;$//g unless /=/ ; |
280 | |
281 | # check for optional initialisation code |
282 | my $var_init = '' ; |
283 | $var_init = $1 if s/\s*(=.*)$//s ; |
284 | $var_init =~ s/"/\\"/g; |
285 | |
286 | s/\s+/ /g; |
287 | my ($var_type, $var_addr, $var_name) = /^(.*?[^& ]) *(\&?) *\b(\w+)$/s |
288 | or blurt("Error: invalid argument declaration '$line'"), next; |
289 | |
290 | # Check for duplicate definitions |
291 | blurt ("Error: duplicate definition of argument '$var_name' ignored"), next |
292 | if $arg_list{$var_name} ++ ; |
293 | |
294 | $thisdone |= $var_name eq "THIS"; |
295 | $retvaldone |= $var_name eq "RETVAL"; |
296 | $var_types{$var_name} = $var_type; |
297 | print "\t" . &map_type($var_type); |
298 | $var_num = $args_match{$var_name}; |
382b8d97 |
299 | |
8fc38fda |
300 | $proto_arg[$var_num] = ProtoString($var_type) |
301 | if $var_num ; |
8e07c86e |
302 | if ($var_addr) { |
303 | $var_addr{$var_name} = 1; |
304 | $func_args =~ s/\b($var_name)\b/&$1/; |
305 | } |
306 | if ($var_init =~ /^=\s*NO_INIT\s*;?\s*$/) { |
307 | print "\t$var_name;\n"; |
308 | } elsif ($var_init =~ /\S/) { |
309 | &output_init($var_type, $var_num, "$var_name $var_init"); |
310 | } elsif ($var_num) { |
311 | # generate initialization code |
312 | &generate_init($var_type, $var_num, $var_name); |
313 | } else { |
314 | print ";\n"; |
315 | } |
316 | } |
317 | } |
318 | |
319 | sub OUTPUT_handler { |
320 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
321 | next unless /\S/; |
322 | my ($outarg, $outcode) = /^\s*(\S+)\s*(.*?)\s*$/s ; |
323 | blurt ("Error: duplicate OUTPUT argument '$outarg' ignored"), next |
324 | if $outargs{$outarg} ++ ; |
325 | if (!$gotRETVAL and $outarg eq 'RETVAL') { |
326 | # deal with RETVAL last |
327 | $RETVAL_code = $outcode ; |
328 | $gotRETVAL = 1 ; |
329 | next ; |
330 | } |
331 | blurt ("Error: OUTPUT $outarg not an argument"), next |
332 | unless defined($args_match{$outarg}); |
333 | blurt("Error: No input definition for OUTPUT argument '$outarg' - ignored"), next |
334 | unless defined $var_types{$outarg} ; |
e1f0c0aa |
335 | print line_directive(); |
8e07c86e |
336 | if ($outcode) { |
337 | print "\t$outcode\n"; |
338 | } else { |
339 | $var_num = $args_match{$outarg}; |
340 | &generate_output($var_types{$outarg}, $var_num, $outarg); |
341 | } |
342 | } |
343 | } |
344 | |
8fc38fda |
345 | sub CLEANUP_handler() { print_section() } |
346 | sub PREINIT_handler() { print_section() } |
347 | sub INIT_handler() { print_section() } |
348 | |
8e07c86e |
349 | sub GetAliases |
350 | { |
351 | my ($line) = @_ ; |
352 | my ($orig) = $line ; |
353 | my ($alias) ; |
354 | my ($value) ; |
355 | |
356 | # Parse alias definitions |
357 | # format is |
358 | # alias = value alias = value ... |
359 | |
360 | while ($line =~ s/^\s*([\w:]+)\s*=\s*(\w+)\s*//) { |
361 | $alias = $1 ; |
362 | $orig_alias = $alias ; |
363 | $value = $2 ; |
364 | |
365 | # check for optional package definition in the alias |
366 | $alias = $Packprefix . $alias if $alias !~ /::/ ; |
367 | |
368 | # check for duplicate alias name & duplicate value |
369 | Warn("Warning: Ignoring duplicate alias '$orig_alias'") |
4230ab3f |
370 | if defined $XsubAliases{$alias} ; |
8e07c86e |
371 | |
4230ab3f |
372 | Warn("Warning: Aliases '$orig_alias' and '$XsubAliasValues{$value}' have identical values") |
373 | if $XsubAliasValues{$value} ; |
8e07c86e |
374 | |
4230ab3f |
375 | $XsubAliases = 1; |
376 | $XsubAliases{$alias} = $value ; |
377 | $XsubAliasValues{$value} = $orig_alias ; |
8e07c86e |
378 | } |
379 | |
380 | blurt("Error: Cannot parse ALIAS definitions from '$orig'") |
381 | if $line ; |
382 | } |
383 | |
382b8d97 |
384 | sub ALIAS_handler () |
8e07c86e |
385 | { |
386 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
387 | next unless /\S/; |
388 | TrimWhitespace($_) ; |
389 | GetAliases($_) if $_ ; |
390 | } |
391 | } |
392 | |
382b8d97 |
393 | sub REQUIRE_handler () |
8e07c86e |
394 | { |
395 | # the rest of the current line should contain a version number |
396 | my ($Ver) = $_ ; |
397 | |
398 | TrimWhitespace($Ver) ; |
399 | |
400 | death ("Error: REQUIRE expects a version number") |
401 | unless $Ver ; |
402 | |
403 | # check that the version number is of the form n.n |
404 | death ("Error: REQUIRE: expected a number, got '$Ver'") |
405 | unless $Ver =~ /^\d+(\.\d*)?/ ; |
406 | |
407 | death ("Error: xsubpp $Ver (or better) required--this is only $XSUBPP_version.") |
408 | unless $XSUBPP_version >= $Ver ; |
409 | } |
410 | |
8fc38fda |
411 | sub VERSIONCHECK_handler () |
412 | { |
413 | # the rest of the current line should contain either ENABLE or |
414 | # DISABLE |
415 | |
416 | TrimWhitespace($_) ; |
417 | |
418 | # check for ENABLE/DISABLE |
419 | death ("Error: VERSIONCHECK: ENABLE/DISABLE") |
420 | unless /^(ENABLE|DISABLE)/i ; |
421 | |
422 | $WantVersionChk = 1 if $1 eq 'ENABLE' ; |
423 | $WantVersionChk = 0 if $1 eq 'DISABLE' ; |
424 | |
425 | } |
426 | |
382b8d97 |
427 | sub PROTOTYPE_handler () |
428 | { |
7d41bd0a |
429 | my $specified ; |
430 | |
c07a80fd |
431 | death("Error: Only 1 PROTOTYPE definition allowed per xsub") |
432 | if $proto_in_this_xsub ++ ; |
433 | |
382b8d97 |
434 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
435 | next unless /\S/; |
7d41bd0a |
436 | $specified = 1 ; |
382b8d97 |
437 | TrimWhitespace($_) ; |
438 | if ($_ eq 'DISABLE') { |
439 | $ProtoThisXSUB = 0 |
440 | } |
441 | elsif ($_ eq 'ENABLE') { |
442 | $ProtoThisXSUB = 1 |
443 | } |
444 | else { |
445 | # remove any whitespace |
446 | s/\s+//g ; |
447 | death("Error: Invalid prototype '$_'") |
448 | unless ValidProtoString($_) ; |
449 | $ProtoThisXSUB = C_string($_) ; |
450 | } |
451 | } |
c07a80fd |
452 | |
7d41bd0a |
453 | # If no prototype specified, then assume empty prototype "" |
454 | $ProtoThisXSUB = 2 unless $specified ; |
455 | |
8fc38fda |
456 | $ProtoUsed = 1 ; |
c07a80fd |
457 | |
382b8d97 |
458 | } |
459 | |
db3b9414 |
460 | sub SCOPE_handler () |
461 | { |
462 | death("Error: Only 1 SCOPE declaration allowed per xsub") |
463 | if $scope_in_this_xsub ++ ; |
464 | |
465 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
466 | next unless /\S/; |
467 | TrimWhitespace($_) ; |
468 | if ($_ =~ /^DISABLE/i) { |
469 | $ScopeThisXSUB = 0 |
470 | } |
471 | elsif ($_ =~ /^ENABLE/i) { |
472 | $ScopeThisXSUB = 1 |
473 | } |
474 | } |
475 | |
476 | } |
477 | |
382b8d97 |
478 | sub PROTOTYPES_handler () |
479 | { |
480 | # the rest of the current line should contain either ENABLE or |
481 | # DISABLE |
482 | |
483 | TrimWhitespace($_) ; |
484 | |
485 | # check for ENABLE/DISABLE |
486 | death ("Error: PROTOTYPES: ENABLE/DISABLE") |
487 | unless /^(ENABLE|DISABLE)/i ; |
488 | |
489 | $WantPrototypes = 1 if $1 eq 'ENABLE' ; |
490 | $WantPrototypes = 0 if $1 eq 'DISABLE' ; |
8fc38fda |
491 | $ProtoUsed = 1 ; |
382b8d97 |
492 | |
493 | } |
494 | |
8fc38fda |
495 | sub INCLUDE_handler () |
496 | { |
497 | # the rest of the current line should contain a valid filename |
498 | |
499 | TrimWhitespace($_) ; |
500 | |
8fc38fda |
501 | death("INCLUDE: filename missing") |
502 | unless $_ ; |
503 | |
504 | death("INCLUDE: output pipe is illegal") |
505 | if /^\s*\|/ ; |
506 | |
507 | # simple minded recursion detector |
508 | death("INCLUDE loop detected") |
509 | if $IncludedFiles{$_} ; |
510 | |
511 | ++ $IncludedFiles{$_} unless /\|\s*$/ ; |
512 | |
513 | # Save the current file context. |
4230ab3f |
514 | push(@XSStack, { |
515 | type => 'file', |
8fc38fda |
516 | LastLine => $lastline, |
517 | LastLineNo => $lastline_no, |
518 | Line => \@line, |
519 | LineNo => \@line_no, |
520 | Filename => $filename, |
c07a80fd |
521 | Handle => $FH, |
8fc38fda |
522 | }) ; |
523 | |
c07a80fd |
524 | ++ $FH ; |
8fc38fda |
525 | |
526 | # open the new file |
c07a80fd |
527 | open ($FH, "$_") or death("Cannot open '$_': $!") ; |
8fc38fda |
528 | |
529 | print Q<<"EOF" ; |
530 | # |
531 | #/* INCLUDE: Including '$_' from '$filename' */ |
532 | # |
533 | EOF |
534 | |
8fc38fda |
535 | $filename = $_ ; |
536 | |
c07a80fd |
537 | # Prime the pump by reading the first |
538 | # non-blank line |
539 | |
540 | # skip leading blank lines |
541 | while (<$FH>) { |
542 | last unless /^\s*$/ ; |
543 | } |
544 | |
545 | $lastline = $_ ; |
8fc38fda |
546 | $lastline_no = $. ; |
547 | |
548 | } |
549 | |
550 | sub PopFile() |
551 | { |
4230ab3f |
552 | return 0 unless $XSStack[-1]{type} eq 'file' ; |
553 | |
554 | my $data = pop @XSStack ; |
8fc38fda |
555 | my $ThisFile = $filename ; |
556 | my $isPipe = ($filename =~ /\|\s*$/) ; |
557 | |
558 | -- $IncludedFiles{$filename} |
559 | unless $isPipe ; |
560 | |
c07a80fd |
561 | close $FH ; |
8fc38fda |
562 | |
c07a80fd |
563 | $FH = $data->{Handle} ; |
8fc38fda |
564 | $filename = $data->{Filename} ; |
565 | $lastline = $data->{LastLine} ; |
566 | $lastline_no = $data->{LastLineNo} ; |
567 | @line = @{ $data->{Line} } ; |
568 | @line_no = @{ $data->{LineNo} } ; |
4230ab3f |
569 | |
8fc38fda |
570 | if ($isPipe and $? ) { |
571 | -- $lastline_no ; |
572 | print STDERR "Error reading from pipe '$ThisFile': $! in $filename, line $lastline_no\n" ; |
573 | exit 1 ; |
574 | } |
575 | |
576 | print Q<<"EOF" ; |
577 | # |
578 | #/* INCLUDE: Returning to '$filename' from '$ThisFile' */ |
579 | # |
580 | EOF |
581 | |
582 | return 1 ; |
583 | } |
584 | |
382b8d97 |
585 | sub ValidProtoString ($) |
586 | { |
587 | my($string) = @_ ; |
588 | |
589 | if ( $string =~ /^$proto_re+$/ ) { |
590 | return $string ; |
591 | } |
592 | |
593 | return 0 ; |
594 | } |
595 | |
596 | sub C_string ($) |
597 | { |
598 | my($string) = @_ ; |
599 | |
600 | $string =~ s[\\][\\\\]g ; |
601 | $string ; |
602 | } |
603 | |
604 | sub ProtoString ($) |
605 | { |
606 | my ($type) = @_ ; |
607 | |
93d3b392 |
608 | $proto_letter{$type} or "\$" ; |
382b8d97 |
609 | } |
610 | |
8e07c86e |
611 | sub check_cpp { |
612 | my @cpp = grep(/^\#\s*(?:if|e\w+)/, @line); |
613 | if (@cpp) { |
614 | my ($cpp, $cpplevel); |
615 | for $cpp (@cpp) { |
616 | if ($cpp =~ /^\#\s*if/) { |
617 | $cpplevel++; |
618 | } elsif (!$cpplevel) { |
619 | Warn("Warning: #else/elif/endif without #if in this function"); |
4230ab3f |
620 | print STDERR " (precede it with a blank line if the matching #if is outside the function)\n" |
621 | if $XSStack[-1]{type} eq 'if'; |
8e07c86e |
622 | return; |
623 | } elsif ($cpp =~ /^\#\s*endif/) { |
624 | $cpplevel--; |
625 | } |
626 | } |
627 | Warn("Warning: #if without #endif in this function") if $cpplevel; |
628 | } |
629 | } |
630 | |
631 | |
8990e307 |
632 | sub Q { |
e50aee73 |
633 | my($text) = @_; |
4633a7c4 |
634 | $text =~ s/^#//gm; |
2304df62 |
635 | $text =~ s/\[\[/{/g; |
636 | $text =~ s/\]\]/}/g; |
8990e307 |
637 | $text; |
93a17b20 |
638 | } |
639 | |
c07a80fd |
640 | open($FH, $filename) or die "cannot open $filename: $!\n"; |
c2960299 |
641 | |
f06db76b |
642 | # Identify the version of xsubpp used |
f06db76b |
643 | print <<EOM ; |
e50aee73 |
644 | /* |
645 | * This file was generated automatically by xsubpp version $XSUBPP_version from the |
93d3b392 |
646 | * contents of $filename. Do not edit this file, edit $filename instead. |
e50aee73 |
647 | * |
648 | * ANY CHANGES MADE HERE WILL BE LOST! |
f06db76b |
649 | * |
650 | */ |
e50aee73 |
651 | |
f06db76b |
652 | EOM |
e1f0c0aa |
653 | print "#line 1 \"$filename\"\n"; |
f06db76b |
654 | |
c07a80fd |
655 | while (<$FH>) { |
e50aee73 |
656 | last if ($Module, $Package, $Prefix) = |
657 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/; |
a0d0e21e |
658 | print $_; |
93a17b20 |
659 | } |
e50aee73 |
660 | &Exit unless defined $_; |
661 | |
8fc38fda |
662 | $lastline = $_; |
663 | $lastline_no = $.; |
93a17b20 |
664 | |
c07a80fd |
665 | # Read next xsub into @line from ($lastline, <$FH>). |
2304df62 |
666 | sub fetch_para { |
667 | # parse paragraph |
4230ab3f |
668 | death ("Error: Unterminated `#if/#ifdef/#ifndef'") |
669 | if !defined $lastline && $XSStack[-1]{type} eq 'if'; |
2304df62 |
670 | @line = (); |
c2960299 |
671 | @line_no = () ; |
4230ab3f |
672 | return PopFile() if !defined $lastline; |
e50aee73 |
673 | |
674 | if ($lastline =~ |
675 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/) { |
676 | $Module = $1; |
8e07c86e |
677 | $Package = defined($2) ? $2 : ''; # keep -w happy |
678 | $Prefix = defined($3) ? $3 : ''; # keep -w happy |
ff68c719 |
679 | $Prefix = quotemeta $Prefix ; |
e50aee73 |
680 | ($Module_cname = $Module) =~ s/\W/_/g; |
8e07c86e |
681 | ($Packid = $Package) =~ tr/:/_/; |
e50aee73 |
682 | $Packprefix = $Package; |
8e07c86e |
683 | $Packprefix .= "::" if $Packprefix ne ""; |
2304df62 |
684 | $lastline = ""; |
e50aee73 |
685 | } |
686 | |
687 | for(;;) { |
688 | if ($lastline !~ /^\s*#/ || |
4230ab3f |
689 | # CPP directives: |
690 | # ANSI: if ifdef ifndef elif else endif define undef |
691 | # line error pragma |
692 | # gcc: warning include_next |
693 | # obj-c: import |
694 | # others: ident (gcc notes that some cpps have this one) |
695 | $lastline =~ /^#[ \t]*(?:(?:if|ifn?def|elif|else|endif|define|undef|pragma|error|warning|line\s+\d+|ident)\b|(?:include(?:_next)?|import)\s*["<].*[>"])/) { |
e50aee73 |
696 | last if $lastline =~ /^\S/ && @line && $line[-1] eq ""; |
697 | push(@line, $lastline); |
698 | push(@line_no, $lastline_no) ; |
93a17b20 |
699 | } |
e50aee73 |
700 | |
701 | # Read next line and continuation lines |
c07a80fd |
702 | last unless defined($lastline = <$FH>); |
e50aee73 |
703 | $lastline_no = $.; |
704 | my $tmp_line; |
705 | $lastline .= $tmp_line |
c07a80fd |
706 | while ($lastline =~ /\\$/ && defined($tmp_line = <$FH>)); |
e50aee73 |
707 | |
8e07c86e |
708 | chomp $lastline; |
e50aee73 |
709 | $lastline =~ s/^\s+$//; |
2304df62 |
710 | } |
e50aee73 |
711 | pop(@line), pop(@line_no) while @line && $line[-1] eq ""; |
e50aee73 |
712 | 1; |
2304df62 |
713 | } |
93a17b20 |
714 | |
c2960299 |
715 | PARAGRAPH: |
8e07c86e |
716 | while (fetch_para()) { |
e50aee73 |
717 | # Print initial preprocessor statements and blank lines |
4230ab3f |
718 | while (@line && $line[0] !~ /^[^\#]/) { |
719 | my $line = shift(@line); |
720 | print $line, "\n"; |
721 | next unless $line =~ /^\#\s*((if)(?:n?def)?|elsif|else|endif)\b/; |
722 | my $statement = $+; |
723 | if ($statement eq 'if') { |
724 | $XSS_work_idx = @XSStack; |
725 | push(@XSStack, {type => 'if'}); |
726 | } else { |
727 | death ("Error: `$statement' with no matching `if'") |
728 | if $XSStack[-1]{type} ne 'if'; |
729 | if ($XSStack[-1]{varname}) { |
730 | push(@InitFileCode, "#endif\n"); |
731 | push(@BootCode, "#endif"); |
732 | } |
733 | |
734 | my(@fns) = keys %{$XSStack[-1]{functions}}; |
735 | if ($statement ne 'endif') { |
736 | # Hide the functions defined in other #if branches, and reset. |
737 | @{$XSStack[-1]{other_functions}}{@fns} = (1) x @fns; |
738 | @{$XSStack[-1]}{qw(varname functions)} = ('', {}); |
739 | } else { |
740 | my($tmp) = pop(@XSStack); |
741 | 0 while (--$XSS_work_idx |
742 | && $XSStack[$XSS_work_idx]{type} ne 'if'); |
743 | # Keep all new defined functions |
744 | push(@fns, keys %{$tmp->{other_functions}}); |
745 | @{$XSStack[$XSS_work_idx]{functions}}{@fns} = (1) x @fns; |
746 | } |
747 | } |
748 | } |
e50aee73 |
749 | |
750 | next PARAGRAPH unless @line; |
751 | |
4230ab3f |
752 | if ($XSS_work_idx && !$XSStack[$XSS_work_idx]{varname}) { |
753 | # We are inside an #if, but have not yet #defined its xsubpp variable. |
754 | print "#define $cpp_next_tmp 1\n\n"; |
755 | push(@InitFileCode, "#if $cpp_next_tmp\n"); |
756 | push(@BootCode, "#if $cpp_next_tmp"); |
757 | $XSStack[$XSS_work_idx]{varname} = $cpp_next_tmp++; |
758 | } |
759 | |
55497cff |
760 | death ("Code is not inside a function" |
761 | ." (maybe last function was ended by a blank line " |
762 | ." followed by a a statement on column one?)") |
e50aee73 |
763 | if $line[0] =~ /^\s/; |
764 | |
2304df62 |
765 | # initialize info arrays |
766 | undef(%args_match); |
767 | undef(%var_types); |
768 | undef(%var_addr); |
769 | undef(%defaults); |
770 | undef($class); |
771 | undef($static); |
772 | undef($elipsis); |
f06db76b |
773 | undef($wantRETVAL) ; |
774 | undef(%arg_list) ; |
382b8d97 |
775 | undef(@proto_arg) ; |
c07a80fd |
776 | undef($proto_in_this_xsub) ; |
db3b9414 |
777 | undef($scope_in_this_xsub) ; |
382b8d97 |
778 | $ProtoThisXSUB = $WantPrototypes ; |
db3b9414 |
779 | $ScopeThisXSUB = 0; |
2304df62 |
780 | |
8e07c86e |
781 | $_ = shift(@line); |
8fc38fda |
782 | while ($kwd = check_keyword("REQUIRE|PROTOTYPES|VERSIONCHECK|INCLUDE")) { |
783 | &{"${kwd}_handler"}() ; |
8e07c86e |
784 | next PARAGRAPH unless @line ; |
785 | $_ = shift(@line); |
786 | } |
c2960299 |
787 | |
8e07c86e |
788 | if (check_keyword("BOOT")) { |
789 | &check_cpp; |
e1f0c0aa |
790 | push (@BootCode, $_, line_directive(), @line, "") ; |
c2960299 |
791 | next PARAGRAPH ; |
a0d0e21e |
792 | } |
c2960299 |
793 | |
8e07c86e |
794 | |
795 | # extract return type, function name and arguments |
796 | my($ret_type) = TidyType($_); |
797 | |
c2960299 |
798 | # a function definition needs at least 2 lines |
799 | blurt ("Error: Function definition too short '$ret_type'"), next PARAGRAPH |
800 | unless @line ; |
801 | |
8e07c86e |
802 | $static = 1 if $ret_type =~ s/^static\s+//; |
803 | |
2304df62 |
804 | $func_header = shift(@line); |
c2960299 |
805 | blurt ("Error: Cannot parse function definition from '$func_header'"), next PARAGRAPH |
8e07c86e |
806 | unless $func_header =~ /^(?:([\w:]*)::)?(\w+)\s*\(\s*(.*?)\s*\)\s*$/s; |
c2960299 |
807 | |
8e07c86e |
808 | ($class, $func_name, $orig_args) = ($1, $2, $3) ; |
2304df62 |
809 | ($pname = $func_name) =~ s/^($Prefix)?/$Packprefix/; |
ff68c719 |
810 | ($clean_func_name = $func_name) =~ s/^$Prefix//; |
811 | $Full_func_name = "${Packid}_$clean_func_name"; |
ff0cee69 |
812 | if ($Is_VMS) { $Full_func_name = $SymSet->addsym($Full_func_name); } |
c2960299 |
813 | |
814 | # Check for duplicate function definition |
4230ab3f |
815 | for $tmp (@XSStack) { |
816 | next unless defined $tmp->{functions}{$Full_func_name}; |
ff68c719 |
817 | Warn("Warning: duplicate function definition '$clean_func_name' detected"); |
4230ab3f |
818 | last; |
8e07c86e |
819 | } |
4230ab3f |
820 | $XSStack[$XSS_work_idx]{functions}{$Full_func_name} ++ ; |
821 | %XsubAliases = %XsubAliasValues = (); |
c2960299 |
822 | |
2304df62 |
823 | @args = split(/\s*,\s*/, $orig_args); |
a0d0e21e |
824 | if (defined($class)) { |
683d4eee |
825 | my $arg0 = ((defined($static) or $func_name eq 'new') |
826 | ? "CLASS" : "THIS"); |
8e07c86e |
827 | unshift(@args, $arg0); |
828 | ($orig_args = "$arg0, $orig_args") =~ s/^$arg0, $/$arg0/; |
2304df62 |
829 | } |
830 | $orig_args =~ s/"/\\"/g; |
831 | $min_args = $num_args = @args; |
832 | foreach $i (0..$num_args-1) { |
833 | if ($args[$i] =~ s/\.\.\.//) { |
834 | $elipsis = 1; |
835 | $min_args--; |
c2960299 |
836 | if ($args[$i] eq '' && $i == $num_args - 1) { |
2304df62 |
837 | pop(@args); |
838 | last; |
839 | } |
840 | } |
8e07c86e |
841 | if ($args[$i] =~ /^([^=]*[^\s=])\s*=\s*(.*)/s) { |
2304df62 |
842 | $min_args--; |
843 | $args[$i] = $1; |
844 | $defaults{$args[$i]} = $2; |
845 | $defaults{$args[$i]} =~ s/"/\\"/g; |
846 | } |
93d3b392 |
847 | $proto_arg[$i+1] = "\$" ; |
2304df62 |
848 | } |
a0d0e21e |
849 | if (defined($class)) { |
2304df62 |
850 | $func_args = join(", ", @args[1..$#args]); |
851 | } else { |
852 | $func_args = join(", ", @args); |
853 | } |
854 | @args_match{@args} = 1..@args; |
855 | |
8e07c86e |
856 | $PPCODE = grep(/^\s*PPCODE\s*:/, @line); |
93d3b392 |
857 | $CODE = grep(/^\s*CODE\s*:/, @line); |
6c5fb52b |
858 | # Detect CODE: blocks which use ST(n)= or XST_m*(n,v) |
859 | # to set explicit return values. |
860 | $EXPLICIT_RETURN = ($CODE && |
861 | ("@line" =~ /(\bST\s*\([^;]*=) | (\bXST_m\w+\s*\()/x )); |
8e07c86e |
862 | $ALIAS = grep(/^\s*ALIAS\s*:/, @line); |
863 | |
2304df62 |
864 | # print function header |
a0d0e21e |
865 | print Q<<"EOF"; |
ff68c719 |
866 | #XS(XS_${Full_func_name}) |
2304df62 |
867 | #[[ |
a0d0e21e |
868 | # dXSARGS; |
93a17b20 |
869 | EOF |
8e07c86e |
870 | print Q<<"EOF" if $ALIAS ; |
871 | # dXSI32; |
872 | EOF |
2304df62 |
873 | if ($elipsis) { |
8e07c86e |
874 | $cond = ($min_args ? qq(items < $min_args) : 0); |
2304df62 |
875 | } |
876 | elsif ($min_args == $num_args) { |
877 | $cond = qq(items != $min_args); |
878 | } |
879 | else { |
880 | $cond = qq(items < $min_args || items > $num_args); |
881 | } |
8990e307 |
882 | |
2304df62 |
883 | print Q<<"EOF" if $except; |
884 | # char errbuf[1024]; |
885 | # *errbuf = '\0'; |
886 | EOF |
887 | |
8e07c86e |
888 | if ($ALIAS) |
889 | { print Q<<"EOF" if $cond } |
890 | # if ($cond) |
891 | # croak("Usage: %s($orig_args)", GvNAME(CvGV(cv))); |
892 | EOF |
893 | else |
894 | { print Q<<"EOF" if $cond } |
895 | # if ($cond) |
8990e307 |
896 | # croak("Usage: $pname($orig_args)"); |
93a17b20 |
897 | EOF |
898 | |
a0d0e21e |
899 | print Q<<"EOF" if $PPCODE; |
900 | # SP -= items; |
901 | EOF |
902 | |
2304df62 |
903 | # Now do a block of some sort. |
93a17b20 |
904 | |
2304df62 |
905 | $condnum = 0; |
8e07c86e |
906 | $cond = ''; # last CASE: condidional |
907 | push(@line, "$END:"); |
908 | push(@line_no, $line_no[-1]); |
909 | $_ = ''; |
910 | &check_cpp; |
2304df62 |
911 | while (@line) { |
8e07c86e |
912 | &CASE_handler if check_keyword("CASE"); |
913 | print Q<<"EOF"; |
914 | # $except [[ |
93a17b20 |
915 | EOF |
916 | |
917 | # do initialization of input variables |
918 | $thisdone = 0; |
919 | $retvaldone = 0; |
463ee0b2 |
920 | $deferred = ""; |
c2960299 |
921 | %arg_list = () ; |
922 | $gotRETVAL = 0; |
f06db76b |
923 | |
8fc38fda |
924 | INPUT_handler() ; |
db3b9414 |
925 | process_keyword("INPUT|PREINIT|ALIAS|PROTOTYPE|SCOPE") ; |
8fc38fda |
926 | |
db3b9414 |
927 | print Q<<"EOF" if $ScopeThisXSUB; |
928 | # ENTER; |
929 | # [[ |
930 | EOF |
931 | |
a0d0e21e |
932 | if (!$thisdone && defined($class)) { |
683d4eee |
933 | if (defined($static) or $func_name eq 'new') { |
a0d0e21e |
934 | print "\tchar *"; |
935 | $var_types{"CLASS"} = "char *"; |
936 | &generate_init("char *", 1, "CLASS"); |
937 | } |
938 | else { |
93a17b20 |
939 | print "\t$class *"; |
940 | $var_types{"THIS"} = "$class *"; |
941 | &generate_init("$class *", 1, "THIS"); |
a0d0e21e |
942 | } |
93a17b20 |
943 | } |
944 | |
945 | # do code |
946 | if (/^\s*NOT_IMPLEMENTED_YET/) { |
4633a7c4 |
947 | print "\n\tcroak(\"$pname: not implemented yet\");\n"; |
948 | $_ = '' ; |
93a17b20 |
949 | } else { |
950 | if ($ret_type ne "void") { |
951 | print "\t" . &map_type($ret_type) . "\tRETVAL;\n" |
952 | if !$retvaldone; |
953 | $args_match{"RETVAL"} = 0; |
954 | $var_types{"RETVAL"} = $ret_type; |
955 | } |
db3b9414 |
956 | |
8e07c86e |
957 | print $deferred; |
db3b9414 |
958 | |
959 | process_keyword("INIT|ALIAS|PROTOTYPE") ; |
8e07c86e |
960 | |
961 | if (check_keyword("PPCODE")) { |
8fc38fda |
962 | print_section(); |
8e07c86e |
963 | death ("PPCODE must be last thing") if @line; |
db3b9414 |
964 | print "\tLEAVE;\n" if $ScopeThisXSUB; |
a0d0e21e |
965 | print "\tPUTBACK;\n\treturn;\n"; |
8e07c86e |
966 | } elsif (check_keyword("CODE")) { |
8fc38fda |
967 | print_section() ; |
968 | } elsif (defined($class) and $func_name eq "DESTROY") { |
a0d0e21e |
969 | print "\n\t"; |
8e07c86e |
970 | print "delete THIS;\n"; |
93a17b20 |
971 | } else { |
972 | print "\n\t"; |
973 | if ($ret_type ne "void") { |
463ee0b2 |
974 | print "RETVAL = "; |
e50aee73 |
975 | $wantRETVAL = 1; |
93a17b20 |
976 | } |
977 | if (defined($static)) { |
683d4eee |
978 | if ($func_name eq 'new') { |
8fc38fda |
979 | $func_name = "$class"; |
8e07c86e |
980 | } else { |
981 | print "${class}::"; |
a0d0e21e |
982 | } |
93a17b20 |
983 | } elsif (defined($class)) { |
683d4eee |
984 | if ($func_name eq 'new') { |
8fc38fda |
985 | $func_name .= " $class"; |
986 | } else { |
93a17b20 |
987 | print "THIS->"; |
8fc38fda |
988 | } |
93a17b20 |
989 | } |
e50aee73 |
990 | $func_name =~ s/^($spat)// |
991 | if defined($spat); |
93a17b20 |
992 | print "$func_name($func_args);\n"; |
93a17b20 |
993 | } |
994 | } |
995 | |
996 | # do output variables |
8e07c86e |
997 | $gotRETVAL = 0; |
998 | undef $RETVAL_code ; |
999 | undef %outargs ; |
8fc38fda |
1000 | process_keyword("OUTPUT|ALIAS|PROTOTYPE"); |
f06db76b |
1001 | |
1002 | # all OUTPUT done, so now push the return value on the stack |
8e07c86e |
1003 | if ($gotRETVAL && $RETVAL_code) { |
1004 | print "\t$RETVAL_code\n"; |
1005 | } elsif ($gotRETVAL || $wantRETVAL) { |
1006 | &generate_output($ret_type, 0, 'RETVAL'); |
1007 | } |
e1f0c0aa |
1008 | print line_directive(); |
f06db76b |
1009 | |
93a17b20 |
1010 | # do cleanup |
8fc38fda |
1011 | process_keyword("CLEANUP|ALIAS|PROTOTYPE") ; |
8e07c86e |
1012 | |
db3b9414 |
1013 | print Q<<"EOF" if $ScopeThisXSUB; |
1014 | # ]] |
1015 | EOF |
1016 | print Q<<"EOF" if $ScopeThisXSUB and not $PPCODE; |
1017 | # LEAVE; |
1018 | EOF |
1019 | |
93a17b20 |
1020 | # print function trailer |
8e07c86e |
1021 | print Q<<EOF; |
2304df62 |
1022 | # ]] |
8e07c86e |
1023 | EOF |
1024 | print Q<<EOF if $except; |
8990e307 |
1025 | # BEGHANDLERS |
1026 | # CATCHALL |
1027 | # sprintf(errbuf, "%s: %s\\tpropagated", Xname, Xreason); |
1028 | # ENDHANDLERS |
93a17b20 |
1029 | EOF |
8e07c86e |
1030 | if (check_keyword("CASE")) { |
1031 | blurt ("Error: No `CASE:' at top of function") |
1032 | unless $condnum; |
1033 | $_ = "CASE: $_"; # Restore CASE: label |
1034 | next; |
8990e307 |
1035 | } |
8e07c86e |
1036 | last if $_ eq "$END:"; |
1037 | death(/^$BLOCK_re/o ? "Misplaced `$1:'" : "Junk at end of function"); |
2304df62 |
1038 | } |
a0d0e21e |
1039 | |
2304df62 |
1040 | print Q<<EOF if $except; |
1041 | # if (errbuf[0]) |
1042 | # croak(errbuf); |
1043 | EOF |
a0d0e21e |
1044 | |
7c5b83de |
1045 | if ($ret_type ne "void" or $EXPLICIT_RETURN) { |
93d3b392 |
1046 | print Q<<EOF unless $PPCODE; |
a0d0e21e |
1047 | # XSRETURN(1); |
1048 | EOF |
93d3b392 |
1049 | } else { |
1050 | print Q<<EOF unless $PPCODE; |
1051 | # XSRETURN_EMPTY; |
1052 | EOF |
1053 | } |
a0d0e21e |
1054 | |
2304df62 |
1055 | print Q<<EOF; |
2304df62 |
1056 | #]] |
8990e307 |
1057 | # |
93a17b20 |
1058 | EOF |
382b8d97 |
1059 | |
4230ab3f |
1060 | my $newXS = "newXS" ; |
1061 | my $proto = "" ; |
1062 | |
382b8d97 |
1063 | # Build the prototype string for the xsub |
1064 | if ($ProtoThisXSUB) { |
4230ab3f |
1065 | $newXS = "newXSproto"; |
1066 | |
1067 | if ($ProtoThisXSUB == 2) { |
1068 | # User has specified empty prototype |
1069 | $proto = ', ""' ; |
1070 | } |
7d41bd0a |
1071 | elsif ($ProtoThisXSUB != 1) { |
1072 | # User has specified a prototype |
4230ab3f |
1073 | $proto = ', "' . $ProtoThisXSUB . '"'; |
382b8d97 |
1074 | } |
1075 | else { |
1076 | my $s = ';'; |
1077 | if ($min_args < $num_args) { |
1078 | $s = ''; |
1079 | $proto_arg[$min_args] .= ";" ; |
1080 | } |
4230ab3f |
1081 | push @proto_arg, "$s\@" |
382b8d97 |
1082 | if $elipsis ; |
1083 | |
4230ab3f |
1084 | $proto = ', "' . join ("", @proto_arg) . '"'; |
382b8d97 |
1085 | } |
1086 | } |
1087 | |
4230ab3f |
1088 | if (%XsubAliases) { |
1089 | $XsubAliases{$pname} = 0 |
1090 | unless defined $XsubAliases{$pname} ; |
1091 | while ( ($name, $value) = each %XsubAliases) { |
1092 | push(@InitFileCode, Q<<"EOF"); |
1093 | # cv = newXS(\"$name\", XS_$Full_func_name, file); |
1094 | # XSANY.any_i32 = $value ; |
1095 | EOF |
1096 | push(@InitFileCode, Q<<"EOF") if $proto; |
1097 | # sv_setpv((SV*)cv$proto) ; |
1098 | EOF |
1099 | } |
1100 | } |
1101 | else { |
1102 | push(@InitFileCode, |
1103 | " ${newXS}(\"$pname\", XS_$Full_func_name, file$proto);\n"); |
1104 | } |
93a17b20 |
1105 | } |
1106 | |
1107 | # print initialization routine |
8990e307 |
1108 | print Q<<"EOF"; |
4633a7c4 |
1109 | ##ifdef __cplusplus |
1110 | #extern "C" |
1111 | ##endif |
a0d0e21e |
1112 | #XS(boot_$Module_cname) |
2304df62 |
1113 | #[[ |
a0d0e21e |
1114 | # dXSARGS; |
8990e307 |
1115 | # char* file = __FILE__; |
1116 | # |
93a17b20 |
1117 | EOF |
1118 | |
8fc38fda |
1119 | print Q<<"EOF" if $WantVersionChk ; |
1120 | # XS_VERSION_BOOTCHECK ; |
1121 | # |
1122 | EOF |
1123 | |
4230ab3f |
1124 | print Q<<"EOF" if defined $XsubAliases ; |
8e07c86e |
1125 | # { |
1126 | # CV * cv ; |
1127 | # |
1128 | EOF |
1129 | |
4230ab3f |
1130 | print @InitFileCode; |
a0d0e21e |
1131 | |
4230ab3f |
1132 | print Q<<"EOF" if defined $XsubAliases ; |
8e07c86e |
1133 | # } |
1134 | EOF |
1135 | |
a0d0e21e |
1136 | if (@BootCode) |
1137 | { |
8e07c86e |
1138 | print "\n /* Initialisation Section */\n" ; |
a0d0e21e |
1139 | print grep (s/$/\n/, @BootCode) ; |
8e07c86e |
1140 | print "\n /* End of Initialisation Section */\n\n" ; |
93a17b20 |
1141 | } |
a0d0e21e |
1142 | |
e50aee73 |
1143 | print Q<<"EOF";; |
1144 | # ST(0) = &sv_yes; |
1145 | # XSRETURN(1); |
1146 | #]] |
1147 | EOF |
1148 | |
8fc38fda |
1149 | warn("Please specify prototyping behavior for $filename (see perlxs manual)\n") |
1150 | unless $ProtoUsed ; |
e50aee73 |
1151 | &Exit; |
1152 | |
93a17b20 |
1153 | |
1154 | sub output_init { |
2304df62 |
1155 | local($type, $num, $init) = @_; |
a0d0e21e |
1156 | local($arg) = "ST(" . ($num - 1) . ")"; |
93a17b20 |
1157 | |
2304df62 |
1158 | eval qq/print " $init\\\n"/; |
93a17b20 |
1159 | } |
1160 | |
e1f0c0aa |
1161 | sub line_directive |
1162 | { |
1163 | # work out the line number |
1164 | my $line_no = $line_no[@line_no - @line -1] ; |
1165 | |
1166 | return "#line $line_no \"$filename\"\n" ; |
1167 | |
1168 | } |
1169 | |
c2960299 |
1170 | sub Warn |
1171 | { |
1172 | # work out the line number |
1173 | my $line_no = $line_no[@line_no - @line -1] ; |
1174 | |
1175 | print STDERR "@_ in $filename, line $line_no\n" ; |
1176 | } |
1177 | |
1178 | sub blurt |
1179 | { |
1180 | Warn @_ ; |
1181 | $errors ++ |
1182 | } |
1183 | |
1184 | sub death |
1185 | { |
1186 | Warn @_ ; |
1187 | exit 1 ; |
1188 | } |
8990e307 |
1189 | |
93a17b20 |
1190 | sub generate_init { |
2304df62 |
1191 | local($type, $num, $var) = @_; |
a0d0e21e |
1192 | local($arg) = "ST(" . ($num - 1) . ")"; |
2304df62 |
1193 | local($argoff) = $num - 1; |
1194 | local($ntype); |
1195 | local($tk); |
93a17b20 |
1196 | |
f06db76b |
1197 | $type = TidyType($type) ; |
c2960299 |
1198 | blurt("Error: '$type' not in typemap"), return |
1199 | unless defined($type_kind{$type}); |
1200 | |
2304df62 |
1201 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
8e07c86e |
1202 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 |
1203 | $tk = $type_kind{$type}; |
1204 | $tk =~ s/OBJ$/REF/ if $func_name =~ /DESTROY$/; |
8e07c86e |
1205 | $type =~ tr/:/_/; |
c2960299 |
1206 | blurt("Error: No INPUT definition for type '$type' found"), return |
1207 | unless defined $input_expr{$tk} ; |
2304df62 |
1208 | $expr = $input_expr{$tk}; |
1209 | if ($expr =~ /DO_ARRAY_ELEM/) { |
c2960299 |
1210 | blurt("Error: '$subtype' not in typemap"), return |
1211 | unless defined($type_kind{$subtype}); |
1212 | blurt("Error: No INPUT definition for type '$subtype' found"), return |
1213 | unless defined $input_expr{$type_kind{$subtype}} ; |
2304df62 |
1214 | $subexpr = $input_expr{$type_kind{$subtype}}; |
1215 | $subexpr =~ s/ntype/subtype/g; |
1216 | $subexpr =~ s/\$arg/ST(ix_$var)/g; |
1217 | $subexpr =~ s/\n\t/\n\t\t/g; |
93d3b392 |
1218 | $subexpr =~ s/is not of (.*\")/[arg %d] is not of $1, ix_$var + 1/g; |
a0d0e21e |
1219 | $subexpr =~ s/\$var/${var}[ix_$var - $argoff]/; |
2304df62 |
1220 | $expr =~ s/DO_ARRAY_ELEM/$subexpr/; |
1221 | } |
db3b9414 |
1222 | if ($expr =~ m#/\*.*scope.*\*/#i) { # "scope" in C comments |
1223 | $ScopeThisXSUB = 1; |
1224 | } |
2304df62 |
1225 | if (defined($defaults{$var})) { |
1226 | $expr =~ s/(\t+)/$1 /g; |
1227 | $expr =~ s/ /\t/g; |
1228 | eval qq/print "\\t$var;\\n"/; |
1229 | $deferred .= eval qq/"\\n\\tif (items < $num)\\n\\t $var = $defaults{$var};\\n\\telse {\\n$expr;\\n\\t}\\n"/; |
db3b9414 |
1230 | } elsif ($ScopeThisXSUB or $expr !~ /^\t\$var =/) { |
2304df62 |
1231 | eval qq/print "\\t$var;\\n"/; |
1232 | $deferred .= eval qq/"\\n$expr;\\n"/; |
1233 | } else { |
1234 | eval qq/print "$expr;\\n"/; |
1235 | } |
93a17b20 |
1236 | } |
1237 | |
1238 | sub generate_output { |
2304df62 |
1239 | local($type, $num, $var) = @_; |
a0d0e21e |
1240 | local($arg) = "ST(" . ($num - ($num != 0)) . ")"; |
2304df62 |
1241 | local($argoff) = $num - 1; |
1242 | local($ntype); |
93a17b20 |
1243 | |
f06db76b |
1244 | $type = TidyType($type) ; |
2304df62 |
1245 | if ($type =~ /^array\(([^,]*),(.*)\)/) { |
1246 | print "\tsv_setpvn($arg, (char *)$var, $2 * sizeof($1)), XFree((char *)$var);\n"; |
1247 | } else { |
f06db76b |
1248 | blurt("Error: '$type' not in typemap"), return |
2304df62 |
1249 | unless defined($type_kind{$type}); |
c2960299 |
1250 | blurt("Error: No OUTPUT definition for type '$type' found"), return |
1251 | unless defined $output_expr{$type_kind{$type}} ; |
2304df62 |
1252 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
1253 | $ntype =~ s/\(\)//g; |
8e07c86e |
1254 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 |
1255 | $expr = $output_expr{$type_kind{$type}}; |
1256 | if ($expr =~ /DO_ARRAY_ELEM/) { |
c2960299 |
1257 | blurt("Error: '$subtype' not in typemap"), return |
1258 | unless defined($type_kind{$subtype}); |
1259 | blurt("Error: No OUTPUT definition for type '$subtype' found"), return |
1260 | unless defined $output_expr{$type_kind{$subtype}} ; |
2304df62 |
1261 | $subexpr = $output_expr{$type_kind{$subtype}}; |
1262 | $subexpr =~ s/ntype/subtype/g; |
1263 | $subexpr =~ s/\$arg/ST(ix_$var)/g; |
1264 | $subexpr =~ s/\$var/${var}[ix_$var]/g; |
1265 | $subexpr =~ s/\n\t/\n\t\t/g; |
1266 | $expr =~ s/DO_ARRAY_ELEM\n/$subexpr/; |
a0d0e21e |
1267 | eval "print qq\a$expr\a"; |
2304df62 |
1268 | } |
a0d0e21e |
1269 | elsif ($var eq 'RETVAL') { |
a2baab1c |
1270 | if ($expr =~ /^\t\$arg = new/) { |
1271 | # We expect that $arg has refcnt 1, so we need to |
1272 | # mortalize it. |
a0d0e21e |
1273 | eval "print qq\a$expr\a"; |
2304df62 |
1274 | print "\tsv_2mortal(ST(0));\n"; |
93a17b20 |
1275 | } |
a2baab1c |
1276 | elsif ($expr =~ /^\s*\$arg\s*=/) { |
1277 | # We expect that $arg has refcnt >=1, so we need |
1278 | # to mortalize it. However, the extension may have |
1279 | # returned the built-in perl value, which is |
1280 | # read-only, thus not mortalizable. However, it is |
1281 | # safe to leave it as it is, since it would be |
1282 | # ignored by REFCNT_dec. Builtin values have REFCNT==0. |
1283 | eval "print qq\a$expr\a"; |
1284 | print "\tif (SvREFCNT(ST(0))) sv_2mortal(ST(0));\n"; |
1285 | } |
2304df62 |
1286 | else { |
a2baab1c |
1287 | # Just hope that the entry would safely write it |
1288 | # over an already mortalized value. By |
1289 | # coincidence, something like $arg = &sv_undef |
1290 | # works too. |
8990e307 |
1291 | print "\tST(0) = sv_newmortal();\n"; |
a0d0e21e |
1292 | eval "print qq\a$expr\a"; |
463ee0b2 |
1293 | } |
2304df62 |
1294 | } |
a0d0e21e |
1295 | elsif ($arg =~ /^ST\(\d+\)$/) { |
1296 | eval "print qq\a$expr\a"; |
1297 | } |
2304df62 |
1298 | } |
93a17b20 |
1299 | } |
1300 | |
1301 | sub map_type { |
e50aee73 |
1302 | my($type) = @_; |
93a17b20 |
1303 | |
8e07c86e |
1304 | $type =~ tr/:/_/; |
1305 | $type =~ s/^array\(([^,]*),(.*)\).*/$1 */s; |
1306 | $type; |
93a17b20 |
1307 | } |
8990e307 |
1308 | |
e50aee73 |
1309 | |
1310 | sub Exit { |
ff0cee69 |
1311 | # If this is VMS, the exit status has meaning to the shell, so we |
1312 | # use a predictable value (SS$_Normal or SS$_Abort) rather than an |
1313 | # arbitrary number. |
1314 | # exit ($Is_VMS ? ($errors ? 44 : 1) : $errors) ; |
1315 | exit ($errors ? 1 : 0); |
e50aee73 |
1316 | } |