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 | |
774d564b |
82 | # Global Constants |
83 | $XSUBPP_version = "1.94001"; |
84 | $Is_VMS = $^O eq 'VMS'; |
85 | |
8fc38fda |
86 | sub Q ; |
87 | |
c07a80fd |
88 | $FH = 'File0000' ; |
8fc38fda |
89 | |
90 | $usage = "Usage: xsubpp [-v] [-C++] [-except] [-prototypes] [-noversioncheck] [-s pattern] [-typemap typemap]... file.xs\n"; |
f06db76b |
91 | |
382b8d97 |
92 | $proto_re = "[" . quotemeta('\$%&*@;') . "]" ; |
93a17b20 |
93 | |
8e07c86e |
94 | $except = ""; |
8fc38fda |
95 | $WantPrototypes = -1 ; |
96 | $WantVersionChk = 1 ; |
97 | $ProtoUsed = 0 ; |
8e07c86e |
98 | SWITCH: while (@ARGV and $ARGV[0] =~ /^-./) { |
93a17b20 |
99 | $flag = shift @ARGV; |
e50aee73 |
100 | $flag =~ s/^-// ; |
ff68c719 |
101 | $spat = quotemeta shift, next SWITCH if $flag eq 's'; |
8990e307 |
102 | $cplusplus = 1, next SWITCH if $flag eq 'C++'; |
382b8d97 |
103 | $WantPrototypes = 0, next SWITCH if $flag eq 'noprototypes'; |
104 | $WantPrototypes = 1, next SWITCH if $flag eq 'prototypes'; |
8fc38fda |
105 | $WantVersionChk = 0, next SWITCH if $flag eq 'noversioncheck'; |
106 | $WantVersionChk = 1, next SWITCH if $flag eq 'versioncheck'; |
8e07c86e |
107 | $except = " TRY", next SWITCH if $flag eq 'except'; |
8990e307 |
108 | push(@tm,shift), next SWITCH if $flag eq 'typemap'; |
8e07c86e |
109 | (print "xsubpp version $XSUBPP_version\n"), exit |
110 | if $flag eq 'v'; |
93a17b20 |
111 | die $usage; |
112 | } |
8fc38fda |
113 | if ($WantPrototypes == -1) |
114 | { $WantPrototypes = 0} |
115 | else |
116 | { $ProtoUsed = 1 } |
117 | |
118 | |
8990e307 |
119 | @ARGV == 1 or die $usage; |
c2960299 |
120 | ($dir, $filename) = $ARGV[0] =~ m#(.*)/(.*)# |
121 | or ($dir, $filename) = $ARGV[0] =~ m#(.*[>\]])(.*)# |
8990e307 |
122 | or ($dir, $filename) = ('.', $ARGV[0]); |
123 | chdir($dir); |
774d564b |
124 | $pwd = cwd(); |
8fc38fda |
125 | |
126 | ++ $IncludedFiles{$ARGV[0]} ; |
93a17b20 |
127 | |
4230ab3f |
128 | my(@XSStack) = ({type => 'none'}); # Stack of conditionals and INCLUDEs |
129 | my($XSS_work_idx, $cpp_next_tmp) = (0, "XSubPPtmpAAAA"); |
130 | |
f06db76b |
131 | sub TrimWhitespace |
132 | { |
133 | $_[0] =~ s/^\s+|\s+$//go ; |
134 | } |
135 | |
136 | sub TidyType |
137 | { |
138 | local ($_) = @_ ; |
139 | |
140 | # rationalise any '*' by joining them into bunches and removing whitespace |
141 | s#\s*(\*+)\s*#$1#g; |
e50aee73 |
142 | s#(\*+)# $1 #g ; |
f06db76b |
143 | |
144 | # change multiple whitespace into a single space |
145 | s/\s+/ /g ; |
146 | |
147 | # trim leading & trailing whitespace |
148 | TrimWhitespace($_) ; |
149 | |
150 | $_ ; |
151 | } |
152 | |
93a17b20 |
153 | $typemap = shift @ARGV; |
8990e307 |
154 | foreach $typemap (@tm) { |
155 | die "Can't find $typemap in $pwd\n" unless -r $typemap; |
93a17b20 |
156 | } |
748a9306 |
157 | unshift @tm, qw(../../../../lib/ExtUtils/typemap ../../../lib/ExtUtils/typemap |
158 | ../../lib/ExtUtils/typemap ../../../typemap ../../typemap |
159 | ../typemap typemap); |
8990e307 |
160 | foreach $typemap (@tm) { |
f06db76b |
161 | next unless -e $typemap ; |
162 | # skip directories, binary files etc. |
163 | warn("Warning: ignoring non-text typemap file '$typemap'\n"), next |
164 | unless -T $typemap ; |
165 | open(TYPEMAP, $typemap) |
166 | or warn ("Warning: could not open typemap file '$typemap': $!\n"), next; |
e50aee73 |
167 | $mode = 'Typemap'; |
c2960299 |
168 | $junk = "" ; |
8990e307 |
169 | $current = \$junk; |
170 | while (<TYPEMAP>) { |
e50aee73 |
171 | next if /^\s*#/; |
e1f0c0aa |
172 | my $line_no = $. + 1; |
8e07c86e |
173 | if (/^INPUT\s*$/) { $mode = 'Input'; $current = \$junk; next; } |
174 | if (/^OUTPUT\s*$/) { $mode = 'Output'; $current = \$junk; next; } |
175 | if (/^TYPEMAP\s*$/) { $mode = 'Typemap'; $current = \$junk; next; } |
e50aee73 |
176 | if ($mode eq 'Typemap') { |
177 | chomp; |
f06db76b |
178 | my $line = $_ ; |
179 | TrimWhitespace($_) ; |
180 | # skip blank lines and comment lines |
181 | next if /^$/ or /^#/ ; |
382b8d97 |
182 | my($type,$kind, $proto) = /^\s*(.*?\S)\s+(\S+)\s*($proto_re*)\s*$/ or |
183 | warn("Warning: File '$typemap' Line $. '$line' TYPEMAP entry needs 2 or 3 columns\n"), next; |
184 | $type = TidyType($type) ; |
185 | $type_kind{$type} = $kind ; |
186 | # prototype defaults to '$' |
93d3b392 |
187 | $proto = "\$" unless $proto ; |
382b8d97 |
188 | warn("Warning: File '$typemap' Line $. '$line' Invalid prototype '$proto'\n") |
189 | unless ValidProtoString($proto) ; |
190 | $proto_letter{$type} = C_string($proto) ; |
8e07c86e |
191 | } |
192 | elsif (/^\s/) { |
193 | $$current .= $_; |
463ee0b2 |
194 | } |
e50aee73 |
195 | elsif ($mode eq 'Input') { |
8e07c86e |
196 | s/\s+$//; |
197 | $input_expr{$_} = ''; |
198 | $current = \$input_expr{$_}; |
93a17b20 |
199 | } |
8990e307 |
200 | else { |
8e07c86e |
201 | s/\s+$//; |
202 | $output_expr{$_} = ''; |
203 | $current = \$output_expr{$_}; |
93a17b20 |
204 | } |
8990e307 |
205 | } |
206 | close(TYPEMAP); |
207 | } |
93a17b20 |
208 | |
8990e307 |
209 | foreach $key (keys %input_expr) { |
210 | $input_expr{$key} =~ s/\n+$//; |
211 | } |
93a17b20 |
212 | |
8e07c86e |
213 | $END = "!End!\n\n"; # "impossible" keyword (multiple newline) |
214 | |
215 | # Match an XS keyword |
382b8d97 |
216 | $BLOCK_re= '\s*(' . join('|', qw( |
217 | REQUIRE BOOT CASE PREINIT INPUT INIT CODE PPCODE OUTPUT |
8fc38fda |
218 | CLEANUP ALIAS PROTOTYPES PROTOTYPE VERSIONCHECK INCLUDE |
db3b9414 |
219 | SCOPE |
382b8d97 |
220 | )) . "|$END)\\s*:"; |
8e07c86e |
221 | |
222 | # Input: ($_, @line) == unparsed input. |
223 | # Output: ($_, @line) == (rest of line, following lines). |
224 | # Return: the matched keyword if found, otherwise 0 |
225 | sub check_keyword { |
226 | $_ = shift(@line) while !/\S/ && @line; |
227 | s/^(\s*)($_[0])\s*:\s*(?:#.*)?/$1/s && $2; |
228 | } |
229 | |
230 | |
231 | sub print_section { |
e1f0c0aa |
232 | my $count = 0; |
8e07c86e |
233 | $_ = shift(@line) while !/\S/ && @line; |
234 | for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) { |
e1f0c0aa |
235 | print line_directive() unless ($count++); |
8e07c86e |
236 | print "$_\n"; |
237 | } |
238 | } |
239 | |
8fc38fda |
240 | sub process_keyword($) |
241 | { |
242 | my($pattern) = @_ ; |
243 | my $kwd ; |
244 | |
245 | &{"${kwd}_handler"}() |
246 | while $kwd = check_keyword($pattern) ; |
e1f0c0aa |
247 | print line_directive(); |
8fc38fda |
248 | } |
249 | |
8e07c86e |
250 | sub CASE_handler { |
251 | blurt ("Error: `CASE:' after unconditional `CASE:'") |
252 | if $condnum && $cond eq ''; |
253 | $cond = $_; |
254 | TrimWhitespace($cond); |
255 | print " ", ($condnum++ ? " else" : ""), ($cond ? " if ($cond)\n" : "\n"); |
256 | $_ = '' ; |
257 | } |
258 | |
259 | sub INPUT_handler { |
260 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
261 | last if /^\s*NOT_IMPLEMENTED_YET/; |
262 | next unless /\S/; # skip blank lines |
263 | |
264 | TrimWhitespace($_) ; |
265 | my $line = $_ ; |
266 | |
267 | # remove trailing semicolon if no initialisation |
268 | s/\s*;$//g unless /=/ ; |
269 | |
270 | # check for optional initialisation code |
271 | my $var_init = '' ; |
272 | $var_init = $1 if s/\s*(=.*)$//s ; |
273 | $var_init =~ s/"/\\"/g; |
274 | |
275 | s/\s+/ /g; |
276 | my ($var_type, $var_addr, $var_name) = /^(.*?[^& ]) *(\&?) *\b(\w+)$/s |
277 | or blurt("Error: invalid argument declaration '$line'"), next; |
278 | |
279 | # Check for duplicate definitions |
280 | blurt ("Error: duplicate definition of argument '$var_name' ignored"), next |
281 | if $arg_list{$var_name} ++ ; |
282 | |
283 | $thisdone |= $var_name eq "THIS"; |
284 | $retvaldone |= $var_name eq "RETVAL"; |
285 | $var_types{$var_name} = $var_type; |
286 | print "\t" . &map_type($var_type); |
287 | $var_num = $args_match{$var_name}; |
382b8d97 |
288 | |
8fc38fda |
289 | $proto_arg[$var_num] = ProtoString($var_type) |
290 | if $var_num ; |
8e07c86e |
291 | if ($var_addr) { |
292 | $var_addr{$var_name} = 1; |
293 | $func_args =~ s/\b($var_name)\b/&$1/; |
294 | } |
295 | if ($var_init =~ /^=\s*NO_INIT\s*;?\s*$/) { |
296 | print "\t$var_name;\n"; |
297 | } elsif ($var_init =~ /\S/) { |
298 | &output_init($var_type, $var_num, "$var_name $var_init"); |
299 | } elsif ($var_num) { |
300 | # generate initialization code |
301 | &generate_init($var_type, $var_num, $var_name); |
302 | } else { |
303 | print ";\n"; |
304 | } |
305 | } |
306 | } |
307 | |
308 | sub OUTPUT_handler { |
309 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
310 | next unless /\S/; |
311 | my ($outarg, $outcode) = /^\s*(\S+)\s*(.*?)\s*$/s ; |
312 | blurt ("Error: duplicate OUTPUT argument '$outarg' ignored"), next |
313 | if $outargs{$outarg} ++ ; |
314 | if (!$gotRETVAL and $outarg eq 'RETVAL') { |
315 | # deal with RETVAL last |
316 | $RETVAL_code = $outcode ; |
317 | $gotRETVAL = 1 ; |
318 | next ; |
319 | } |
320 | blurt ("Error: OUTPUT $outarg not an argument"), next |
321 | unless defined($args_match{$outarg}); |
322 | blurt("Error: No input definition for OUTPUT argument '$outarg' - ignored"), next |
323 | unless defined $var_types{$outarg} ; |
e1f0c0aa |
324 | print line_directive(); |
8e07c86e |
325 | if ($outcode) { |
326 | print "\t$outcode\n"; |
327 | } else { |
328 | $var_num = $args_match{$outarg}; |
329 | &generate_output($var_types{$outarg}, $var_num, $outarg); |
330 | } |
331 | } |
332 | } |
333 | |
8fc38fda |
334 | sub CLEANUP_handler() { print_section() } |
335 | sub PREINIT_handler() { print_section() } |
336 | sub INIT_handler() { print_section() } |
337 | |
8e07c86e |
338 | sub GetAliases |
339 | { |
340 | my ($line) = @_ ; |
341 | my ($orig) = $line ; |
342 | my ($alias) ; |
343 | my ($value) ; |
344 | |
345 | # Parse alias definitions |
346 | # format is |
347 | # alias = value alias = value ... |
348 | |
349 | while ($line =~ s/^\s*([\w:]+)\s*=\s*(\w+)\s*//) { |
350 | $alias = $1 ; |
351 | $orig_alias = $alias ; |
352 | $value = $2 ; |
353 | |
354 | # check for optional package definition in the alias |
355 | $alias = $Packprefix . $alias if $alias !~ /::/ ; |
356 | |
357 | # check for duplicate alias name & duplicate value |
358 | Warn("Warning: Ignoring duplicate alias '$orig_alias'") |
4230ab3f |
359 | if defined $XsubAliases{$alias} ; |
8e07c86e |
360 | |
4230ab3f |
361 | Warn("Warning: Aliases '$orig_alias' and '$XsubAliasValues{$value}' have identical values") |
362 | if $XsubAliasValues{$value} ; |
8e07c86e |
363 | |
4230ab3f |
364 | $XsubAliases = 1; |
365 | $XsubAliases{$alias} = $value ; |
366 | $XsubAliasValues{$value} = $orig_alias ; |
8e07c86e |
367 | } |
368 | |
369 | blurt("Error: Cannot parse ALIAS definitions from '$orig'") |
370 | if $line ; |
371 | } |
372 | |
382b8d97 |
373 | sub ALIAS_handler () |
8e07c86e |
374 | { |
375 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
376 | next unless /\S/; |
377 | TrimWhitespace($_) ; |
378 | GetAliases($_) if $_ ; |
379 | } |
380 | } |
381 | |
382b8d97 |
382 | sub REQUIRE_handler () |
8e07c86e |
383 | { |
384 | # the rest of the current line should contain a version number |
385 | my ($Ver) = $_ ; |
386 | |
387 | TrimWhitespace($Ver) ; |
388 | |
389 | death ("Error: REQUIRE expects a version number") |
390 | unless $Ver ; |
391 | |
392 | # check that the version number is of the form n.n |
393 | death ("Error: REQUIRE: expected a number, got '$Ver'") |
394 | unless $Ver =~ /^\d+(\.\d*)?/ ; |
395 | |
396 | death ("Error: xsubpp $Ver (or better) required--this is only $XSUBPP_version.") |
397 | unless $XSUBPP_version >= $Ver ; |
398 | } |
399 | |
8fc38fda |
400 | sub VERSIONCHECK_handler () |
401 | { |
402 | # the rest of the current line should contain either ENABLE or |
403 | # DISABLE |
404 | |
405 | TrimWhitespace($_) ; |
406 | |
407 | # check for ENABLE/DISABLE |
408 | death ("Error: VERSIONCHECK: ENABLE/DISABLE") |
409 | unless /^(ENABLE|DISABLE)/i ; |
410 | |
411 | $WantVersionChk = 1 if $1 eq 'ENABLE' ; |
412 | $WantVersionChk = 0 if $1 eq 'DISABLE' ; |
413 | |
414 | } |
415 | |
382b8d97 |
416 | sub PROTOTYPE_handler () |
417 | { |
7d41bd0a |
418 | my $specified ; |
419 | |
c07a80fd |
420 | death("Error: Only 1 PROTOTYPE definition allowed per xsub") |
421 | if $proto_in_this_xsub ++ ; |
422 | |
382b8d97 |
423 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
424 | next unless /\S/; |
7d41bd0a |
425 | $specified = 1 ; |
382b8d97 |
426 | TrimWhitespace($_) ; |
427 | if ($_ eq 'DISABLE') { |
428 | $ProtoThisXSUB = 0 |
429 | } |
430 | elsif ($_ eq 'ENABLE') { |
431 | $ProtoThisXSUB = 1 |
432 | } |
433 | else { |
434 | # remove any whitespace |
435 | s/\s+//g ; |
436 | death("Error: Invalid prototype '$_'") |
437 | unless ValidProtoString($_) ; |
438 | $ProtoThisXSUB = C_string($_) ; |
439 | } |
440 | } |
c07a80fd |
441 | |
7d41bd0a |
442 | # If no prototype specified, then assume empty prototype "" |
443 | $ProtoThisXSUB = 2 unless $specified ; |
444 | |
8fc38fda |
445 | $ProtoUsed = 1 ; |
c07a80fd |
446 | |
382b8d97 |
447 | } |
448 | |
db3b9414 |
449 | sub SCOPE_handler () |
450 | { |
451 | death("Error: Only 1 SCOPE declaration allowed per xsub") |
452 | if $scope_in_this_xsub ++ ; |
453 | |
454 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
455 | next unless /\S/; |
456 | TrimWhitespace($_) ; |
457 | if ($_ =~ /^DISABLE/i) { |
458 | $ScopeThisXSUB = 0 |
459 | } |
460 | elsif ($_ =~ /^ENABLE/i) { |
461 | $ScopeThisXSUB = 1 |
462 | } |
463 | } |
464 | |
465 | } |
466 | |
382b8d97 |
467 | sub PROTOTYPES_handler () |
468 | { |
469 | # the rest of the current line should contain either ENABLE or |
470 | # DISABLE |
471 | |
472 | TrimWhitespace($_) ; |
473 | |
474 | # check for ENABLE/DISABLE |
475 | death ("Error: PROTOTYPES: ENABLE/DISABLE") |
476 | unless /^(ENABLE|DISABLE)/i ; |
477 | |
478 | $WantPrototypes = 1 if $1 eq 'ENABLE' ; |
479 | $WantPrototypes = 0 if $1 eq 'DISABLE' ; |
8fc38fda |
480 | $ProtoUsed = 1 ; |
382b8d97 |
481 | |
482 | } |
483 | |
8fc38fda |
484 | sub INCLUDE_handler () |
485 | { |
486 | # the rest of the current line should contain a valid filename |
487 | |
488 | TrimWhitespace($_) ; |
489 | |
8fc38fda |
490 | death("INCLUDE: filename missing") |
491 | unless $_ ; |
492 | |
493 | death("INCLUDE: output pipe is illegal") |
494 | if /^\s*\|/ ; |
495 | |
496 | # simple minded recursion detector |
497 | death("INCLUDE loop detected") |
498 | if $IncludedFiles{$_} ; |
499 | |
500 | ++ $IncludedFiles{$_} unless /\|\s*$/ ; |
501 | |
502 | # Save the current file context. |
4230ab3f |
503 | push(@XSStack, { |
504 | type => 'file', |
8fc38fda |
505 | LastLine => $lastline, |
506 | LastLineNo => $lastline_no, |
507 | Line => \@line, |
508 | LineNo => \@line_no, |
509 | Filename => $filename, |
c07a80fd |
510 | Handle => $FH, |
8fc38fda |
511 | }) ; |
512 | |
c07a80fd |
513 | ++ $FH ; |
8fc38fda |
514 | |
515 | # open the new file |
c07a80fd |
516 | open ($FH, "$_") or death("Cannot open '$_': $!") ; |
8fc38fda |
517 | |
518 | print Q<<"EOF" ; |
519 | # |
520 | #/* INCLUDE: Including '$_' from '$filename' */ |
521 | # |
522 | EOF |
523 | |
8fc38fda |
524 | $filename = $_ ; |
525 | |
c07a80fd |
526 | # Prime the pump by reading the first |
527 | # non-blank line |
528 | |
529 | # skip leading blank lines |
530 | while (<$FH>) { |
531 | last unless /^\s*$/ ; |
532 | } |
533 | |
534 | $lastline = $_ ; |
8fc38fda |
535 | $lastline_no = $. ; |
536 | |
537 | } |
538 | |
539 | sub PopFile() |
540 | { |
4230ab3f |
541 | return 0 unless $XSStack[-1]{type} eq 'file' ; |
542 | |
543 | my $data = pop @XSStack ; |
8fc38fda |
544 | my $ThisFile = $filename ; |
545 | my $isPipe = ($filename =~ /\|\s*$/) ; |
546 | |
547 | -- $IncludedFiles{$filename} |
548 | unless $isPipe ; |
549 | |
c07a80fd |
550 | close $FH ; |
8fc38fda |
551 | |
c07a80fd |
552 | $FH = $data->{Handle} ; |
8fc38fda |
553 | $filename = $data->{Filename} ; |
554 | $lastline = $data->{LastLine} ; |
555 | $lastline_no = $data->{LastLineNo} ; |
556 | @line = @{ $data->{Line} } ; |
557 | @line_no = @{ $data->{LineNo} } ; |
4230ab3f |
558 | |
8fc38fda |
559 | if ($isPipe and $? ) { |
560 | -- $lastline_no ; |
561 | print STDERR "Error reading from pipe '$ThisFile': $! in $filename, line $lastline_no\n" ; |
562 | exit 1 ; |
563 | } |
564 | |
565 | print Q<<"EOF" ; |
566 | # |
567 | #/* INCLUDE: Returning to '$filename' from '$ThisFile' */ |
568 | # |
569 | EOF |
570 | |
571 | return 1 ; |
572 | } |
573 | |
382b8d97 |
574 | sub ValidProtoString ($) |
575 | { |
576 | my($string) = @_ ; |
577 | |
578 | if ( $string =~ /^$proto_re+$/ ) { |
579 | return $string ; |
580 | } |
581 | |
582 | return 0 ; |
583 | } |
584 | |
585 | sub C_string ($) |
586 | { |
587 | my($string) = @_ ; |
588 | |
589 | $string =~ s[\\][\\\\]g ; |
590 | $string ; |
591 | } |
592 | |
593 | sub ProtoString ($) |
594 | { |
595 | my ($type) = @_ ; |
596 | |
93d3b392 |
597 | $proto_letter{$type} or "\$" ; |
382b8d97 |
598 | } |
599 | |
8e07c86e |
600 | sub check_cpp { |
601 | my @cpp = grep(/^\#\s*(?:if|e\w+)/, @line); |
602 | if (@cpp) { |
603 | my ($cpp, $cpplevel); |
604 | for $cpp (@cpp) { |
605 | if ($cpp =~ /^\#\s*if/) { |
606 | $cpplevel++; |
607 | } elsif (!$cpplevel) { |
608 | Warn("Warning: #else/elif/endif without #if in this function"); |
4230ab3f |
609 | print STDERR " (precede it with a blank line if the matching #if is outside the function)\n" |
610 | if $XSStack[-1]{type} eq 'if'; |
8e07c86e |
611 | return; |
612 | } elsif ($cpp =~ /^\#\s*endif/) { |
613 | $cpplevel--; |
614 | } |
615 | } |
616 | Warn("Warning: #if without #endif in this function") if $cpplevel; |
617 | } |
618 | } |
619 | |
620 | |
8990e307 |
621 | sub Q { |
e50aee73 |
622 | my($text) = @_; |
4633a7c4 |
623 | $text =~ s/^#//gm; |
2304df62 |
624 | $text =~ s/\[\[/{/g; |
625 | $text =~ s/\]\]/}/g; |
8990e307 |
626 | $text; |
93a17b20 |
627 | } |
628 | |
c07a80fd |
629 | open($FH, $filename) or die "cannot open $filename: $!\n"; |
c2960299 |
630 | |
f06db76b |
631 | # Identify the version of xsubpp used |
f06db76b |
632 | print <<EOM ; |
e50aee73 |
633 | /* |
634 | * This file was generated automatically by xsubpp version $XSUBPP_version from the |
93d3b392 |
635 | * contents of $filename. Do not edit this file, edit $filename instead. |
e50aee73 |
636 | * |
637 | * ANY CHANGES MADE HERE WILL BE LOST! |
f06db76b |
638 | * |
639 | */ |
e50aee73 |
640 | |
f06db76b |
641 | EOM |
e1f0c0aa |
642 | print "#line 1 \"$filename\"\n"; |
f06db76b |
643 | |
c07a80fd |
644 | while (<$FH>) { |
e50aee73 |
645 | last if ($Module, $Package, $Prefix) = |
646 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/; |
a0d0e21e |
647 | print $_; |
93a17b20 |
648 | } |
e50aee73 |
649 | &Exit unless defined $_; |
650 | |
8fc38fda |
651 | $lastline = $_; |
652 | $lastline_no = $.; |
93a17b20 |
653 | |
c07a80fd |
654 | # Read next xsub into @line from ($lastline, <$FH>). |
2304df62 |
655 | sub fetch_para { |
656 | # parse paragraph |
4230ab3f |
657 | death ("Error: Unterminated `#if/#ifdef/#ifndef'") |
658 | if !defined $lastline && $XSStack[-1]{type} eq 'if'; |
2304df62 |
659 | @line = (); |
c2960299 |
660 | @line_no = () ; |
4230ab3f |
661 | return PopFile() if !defined $lastline; |
e50aee73 |
662 | |
663 | if ($lastline =~ |
664 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/) { |
665 | $Module = $1; |
8e07c86e |
666 | $Package = defined($2) ? $2 : ''; # keep -w happy |
667 | $Prefix = defined($3) ? $3 : ''; # keep -w happy |
ff68c719 |
668 | $Prefix = quotemeta $Prefix ; |
e50aee73 |
669 | ($Module_cname = $Module) =~ s/\W/_/g; |
8e07c86e |
670 | ($Packid = $Package) =~ tr/:/_/; |
e50aee73 |
671 | $Packprefix = $Package; |
8e07c86e |
672 | $Packprefix .= "::" if $Packprefix ne ""; |
2304df62 |
673 | $lastline = ""; |
e50aee73 |
674 | } |
675 | |
676 | for(;;) { |
677 | if ($lastline !~ /^\s*#/ || |
4230ab3f |
678 | # CPP directives: |
679 | # ANSI: if ifdef ifndef elif else endif define undef |
680 | # line error pragma |
681 | # gcc: warning include_next |
682 | # obj-c: import |
683 | # others: ident (gcc notes that some cpps have this one) |
684 | $lastline =~ /^#[ \t]*(?:(?:if|ifn?def|elif|else|endif|define|undef|pragma|error|warning|line\s+\d+|ident)\b|(?:include(?:_next)?|import)\s*["<].*[>"])/) { |
e50aee73 |
685 | last if $lastline =~ /^\S/ && @line && $line[-1] eq ""; |
686 | push(@line, $lastline); |
687 | push(@line_no, $lastline_no) ; |
93a17b20 |
688 | } |
e50aee73 |
689 | |
690 | # Read next line and continuation lines |
c07a80fd |
691 | last unless defined($lastline = <$FH>); |
e50aee73 |
692 | $lastline_no = $.; |
693 | my $tmp_line; |
694 | $lastline .= $tmp_line |
c07a80fd |
695 | while ($lastline =~ /\\$/ && defined($tmp_line = <$FH>)); |
e50aee73 |
696 | |
8e07c86e |
697 | chomp $lastline; |
e50aee73 |
698 | $lastline =~ s/^\s+$//; |
2304df62 |
699 | } |
e50aee73 |
700 | pop(@line), pop(@line_no) while @line && $line[-1] eq ""; |
e50aee73 |
701 | 1; |
2304df62 |
702 | } |
93a17b20 |
703 | |
c2960299 |
704 | PARAGRAPH: |
8e07c86e |
705 | while (fetch_para()) { |
e50aee73 |
706 | # Print initial preprocessor statements and blank lines |
4230ab3f |
707 | while (@line && $line[0] !~ /^[^\#]/) { |
708 | my $line = shift(@line); |
709 | print $line, "\n"; |
710 | next unless $line =~ /^\#\s*((if)(?:n?def)?|elsif|else|endif)\b/; |
711 | my $statement = $+; |
712 | if ($statement eq 'if') { |
713 | $XSS_work_idx = @XSStack; |
714 | push(@XSStack, {type => 'if'}); |
715 | } else { |
716 | death ("Error: `$statement' with no matching `if'") |
717 | if $XSStack[-1]{type} ne 'if'; |
718 | if ($XSStack[-1]{varname}) { |
719 | push(@InitFileCode, "#endif\n"); |
720 | push(@BootCode, "#endif"); |
721 | } |
722 | |
723 | my(@fns) = keys %{$XSStack[-1]{functions}}; |
724 | if ($statement ne 'endif') { |
725 | # Hide the functions defined in other #if branches, and reset. |
726 | @{$XSStack[-1]{other_functions}}{@fns} = (1) x @fns; |
727 | @{$XSStack[-1]}{qw(varname functions)} = ('', {}); |
728 | } else { |
729 | my($tmp) = pop(@XSStack); |
730 | 0 while (--$XSS_work_idx |
731 | && $XSStack[$XSS_work_idx]{type} ne 'if'); |
732 | # Keep all new defined functions |
733 | push(@fns, keys %{$tmp->{other_functions}}); |
734 | @{$XSStack[$XSS_work_idx]{functions}}{@fns} = (1) x @fns; |
735 | } |
736 | } |
737 | } |
e50aee73 |
738 | |
739 | next PARAGRAPH unless @line; |
740 | |
4230ab3f |
741 | if ($XSS_work_idx && !$XSStack[$XSS_work_idx]{varname}) { |
742 | # We are inside an #if, but have not yet #defined its xsubpp variable. |
743 | print "#define $cpp_next_tmp 1\n\n"; |
744 | push(@InitFileCode, "#if $cpp_next_tmp\n"); |
745 | push(@BootCode, "#if $cpp_next_tmp"); |
746 | $XSStack[$XSS_work_idx]{varname} = $cpp_next_tmp++; |
747 | } |
748 | |
55497cff |
749 | death ("Code is not inside a function" |
750 | ." (maybe last function was ended by a blank line " |
751 | ." followed by a a statement on column one?)") |
e50aee73 |
752 | if $line[0] =~ /^\s/; |
753 | |
2304df62 |
754 | # initialize info arrays |
755 | undef(%args_match); |
756 | undef(%var_types); |
757 | undef(%var_addr); |
758 | undef(%defaults); |
759 | undef($class); |
760 | undef($static); |
761 | undef($elipsis); |
f06db76b |
762 | undef($wantRETVAL) ; |
763 | undef(%arg_list) ; |
382b8d97 |
764 | undef(@proto_arg) ; |
c07a80fd |
765 | undef($proto_in_this_xsub) ; |
db3b9414 |
766 | undef($scope_in_this_xsub) ; |
382b8d97 |
767 | $ProtoThisXSUB = $WantPrototypes ; |
db3b9414 |
768 | $ScopeThisXSUB = 0; |
2304df62 |
769 | |
8e07c86e |
770 | $_ = shift(@line); |
8fc38fda |
771 | while ($kwd = check_keyword("REQUIRE|PROTOTYPES|VERSIONCHECK|INCLUDE")) { |
772 | &{"${kwd}_handler"}() ; |
8e07c86e |
773 | next PARAGRAPH unless @line ; |
774 | $_ = shift(@line); |
775 | } |
c2960299 |
776 | |
8e07c86e |
777 | if (check_keyword("BOOT")) { |
778 | &check_cpp; |
e1f0c0aa |
779 | push (@BootCode, $_, line_directive(), @line, "") ; |
c2960299 |
780 | next PARAGRAPH ; |
a0d0e21e |
781 | } |
c2960299 |
782 | |
8e07c86e |
783 | |
784 | # extract return type, function name and arguments |
785 | my($ret_type) = TidyType($_); |
786 | |
c2960299 |
787 | # a function definition needs at least 2 lines |
788 | blurt ("Error: Function definition too short '$ret_type'"), next PARAGRAPH |
789 | unless @line ; |
790 | |
8e07c86e |
791 | $static = 1 if $ret_type =~ s/^static\s+//; |
792 | |
2304df62 |
793 | $func_header = shift(@line); |
c2960299 |
794 | blurt ("Error: Cannot parse function definition from '$func_header'"), next PARAGRAPH |
8e07c86e |
795 | unless $func_header =~ /^(?:([\w:]*)::)?(\w+)\s*\(\s*(.*?)\s*\)\s*$/s; |
c2960299 |
796 | |
8e07c86e |
797 | ($class, $func_name, $orig_args) = ($1, $2, $3) ; |
2304df62 |
798 | ($pname = $func_name) =~ s/^($Prefix)?/$Packprefix/; |
ff68c719 |
799 | ($clean_func_name = $func_name) =~ s/^$Prefix//; |
800 | $Full_func_name = "${Packid}_$clean_func_name"; |
c2960299 |
801 | |
802 | # Check for duplicate function definition |
4230ab3f |
803 | for $tmp (@XSStack) { |
804 | next unless defined $tmp->{functions}{$Full_func_name}; |
ff68c719 |
805 | Warn("Warning: duplicate function definition '$clean_func_name' detected"); |
4230ab3f |
806 | last; |
8e07c86e |
807 | } |
4230ab3f |
808 | $XSStack[$XSS_work_idx]{functions}{$Full_func_name} ++ ; |
809 | %XsubAliases = %XsubAliasValues = (); |
c2960299 |
810 | |
2304df62 |
811 | @args = split(/\s*,\s*/, $orig_args); |
a0d0e21e |
812 | if (defined($class)) { |
8fc38fda |
813 | my $arg0 = ((defined($static) or $func_name =~ /^new/) ? "CLASS" : "THIS"); |
8e07c86e |
814 | unshift(@args, $arg0); |
815 | ($orig_args = "$arg0, $orig_args") =~ s/^$arg0, $/$arg0/; |
2304df62 |
816 | } |
817 | $orig_args =~ s/"/\\"/g; |
818 | $min_args = $num_args = @args; |
819 | foreach $i (0..$num_args-1) { |
820 | if ($args[$i] =~ s/\.\.\.//) { |
821 | $elipsis = 1; |
822 | $min_args--; |
c2960299 |
823 | if ($args[$i] eq '' && $i == $num_args - 1) { |
2304df62 |
824 | pop(@args); |
825 | last; |
826 | } |
827 | } |
8e07c86e |
828 | if ($args[$i] =~ /^([^=]*[^\s=])\s*=\s*(.*)/s) { |
2304df62 |
829 | $min_args--; |
830 | $args[$i] = $1; |
831 | $defaults{$args[$i]} = $2; |
832 | $defaults{$args[$i]} =~ s/"/\\"/g; |
833 | } |
93d3b392 |
834 | $proto_arg[$i+1] = "\$" ; |
2304df62 |
835 | } |
a0d0e21e |
836 | if (defined($class)) { |
2304df62 |
837 | $func_args = join(", ", @args[1..$#args]); |
838 | } else { |
839 | $func_args = join(", ", @args); |
840 | } |
841 | @args_match{@args} = 1..@args; |
842 | |
8e07c86e |
843 | $PPCODE = grep(/^\s*PPCODE\s*:/, @line); |
93d3b392 |
844 | $CODE = grep(/^\s*CODE\s*:/, @line); |
6c5fb52b |
845 | # Detect CODE: blocks which use ST(n)= or XST_m*(n,v) |
846 | # to set explicit return values. |
847 | $EXPLICIT_RETURN = ($CODE && |
848 | ("@line" =~ /(\bST\s*\([^;]*=) | (\bXST_m\w+\s*\()/x )); |
8e07c86e |
849 | $ALIAS = grep(/^\s*ALIAS\s*:/, @line); |
850 | |
2304df62 |
851 | # print function header |
a0d0e21e |
852 | print Q<<"EOF"; |
ff68c719 |
853 | #XS(XS_${Full_func_name}) |
2304df62 |
854 | #[[ |
a0d0e21e |
855 | # dXSARGS; |
93a17b20 |
856 | EOF |
8e07c86e |
857 | print Q<<"EOF" if $ALIAS ; |
858 | # dXSI32; |
859 | EOF |
2304df62 |
860 | if ($elipsis) { |
8e07c86e |
861 | $cond = ($min_args ? qq(items < $min_args) : 0); |
2304df62 |
862 | } |
863 | elsif ($min_args == $num_args) { |
864 | $cond = qq(items != $min_args); |
865 | } |
866 | else { |
867 | $cond = qq(items < $min_args || items > $num_args); |
868 | } |
8990e307 |
869 | |
2304df62 |
870 | print Q<<"EOF" if $except; |
871 | # char errbuf[1024]; |
872 | # *errbuf = '\0'; |
873 | EOF |
874 | |
8e07c86e |
875 | if ($ALIAS) |
876 | { print Q<<"EOF" if $cond } |
877 | # if ($cond) |
878 | # croak("Usage: %s($orig_args)", GvNAME(CvGV(cv))); |
879 | EOF |
880 | else |
881 | { print Q<<"EOF" if $cond } |
882 | # if ($cond) |
8990e307 |
883 | # croak("Usage: $pname($orig_args)"); |
93a17b20 |
884 | EOF |
885 | |
a0d0e21e |
886 | print Q<<"EOF" if $PPCODE; |
887 | # SP -= items; |
888 | EOF |
889 | |
2304df62 |
890 | # Now do a block of some sort. |
93a17b20 |
891 | |
2304df62 |
892 | $condnum = 0; |
8e07c86e |
893 | $cond = ''; # last CASE: condidional |
894 | push(@line, "$END:"); |
895 | push(@line_no, $line_no[-1]); |
896 | $_ = ''; |
897 | &check_cpp; |
2304df62 |
898 | while (@line) { |
8e07c86e |
899 | &CASE_handler if check_keyword("CASE"); |
900 | print Q<<"EOF"; |
901 | # $except [[ |
93a17b20 |
902 | EOF |
903 | |
904 | # do initialization of input variables |
905 | $thisdone = 0; |
906 | $retvaldone = 0; |
463ee0b2 |
907 | $deferred = ""; |
c2960299 |
908 | %arg_list = () ; |
909 | $gotRETVAL = 0; |
f06db76b |
910 | |
8fc38fda |
911 | INPUT_handler() ; |
db3b9414 |
912 | process_keyword("INPUT|PREINIT|ALIAS|PROTOTYPE|SCOPE") ; |
8fc38fda |
913 | |
db3b9414 |
914 | print Q<<"EOF" if $ScopeThisXSUB; |
915 | # ENTER; |
916 | # [[ |
917 | EOF |
918 | |
a0d0e21e |
919 | if (!$thisdone && defined($class)) { |
8fc38fda |
920 | if (defined($static) or $func_name =~ /^new/) { |
a0d0e21e |
921 | print "\tchar *"; |
922 | $var_types{"CLASS"} = "char *"; |
923 | &generate_init("char *", 1, "CLASS"); |
924 | } |
925 | else { |
93a17b20 |
926 | print "\t$class *"; |
927 | $var_types{"THIS"} = "$class *"; |
928 | &generate_init("$class *", 1, "THIS"); |
a0d0e21e |
929 | } |
93a17b20 |
930 | } |
931 | |
932 | # do code |
933 | if (/^\s*NOT_IMPLEMENTED_YET/) { |
4633a7c4 |
934 | print "\n\tcroak(\"$pname: not implemented yet\");\n"; |
935 | $_ = '' ; |
93a17b20 |
936 | } else { |
937 | if ($ret_type ne "void") { |
938 | print "\t" . &map_type($ret_type) . "\tRETVAL;\n" |
939 | if !$retvaldone; |
940 | $args_match{"RETVAL"} = 0; |
941 | $var_types{"RETVAL"} = $ret_type; |
942 | } |
db3b9414 |
943 | |
8e07c86e |
944 | print $deferred; |
db3b9414 |
945 | |
946 | process_keyword("INIT|ALIAS|PROTOTYPE") ; |
8e07c86e |
947 | |
948 | if (check_keyword("PPCODE")) { |
8fc38fda |
949 | print_section(); |
8e07c86e |
950 | death ("PPCODE must be last thing") if @line; |
db3b9414 |
951 | print "\tLEAVE;\n" if $ScopeThisXSUB; |
a0d0e21e |
952 | print "\tPUTBACK;\n\treturn;\n"; |
8e07c86e |
953 | } elsif (check_keyword("CODE")) { |
8fc38fda |
954 | print_section() ; |
955 | } elsif (defined($class) and $func_name eq "DESTROY") { |
a0d0e21e |
956 | print "\n\t"; |
8e07c86e |
957 | print "delete THIS;\n"; |
93a17b20 |
958 | } else { |
959 | print "\n\t"; |
960 | if ($ret_type ne "void") { |
463ee0b2 |
961 | print "RETVAL = "; |
e50aee73 |
962 | $wantRETVAL = 1; |
93a17b20 |
963 | } |
964 | if (defined($static)) { |
a0d0e21e |
965 | if ($func_name =~ /^new/) { |
8fc38fda |
966 | $func_name = "$class"; |
8e07c86e |
967 | } else { |
968 | print "${class}::"; |
a0d0e21e |
969 | } |
93a17b20 |
970 | } elsif (defined($class)) { |
8fc38fda |
971 | if ($func_name =~ /^new/) { |
972 | $func_name .= " $class"; |
973 | } else { |
93a17b20 |
974 | print "THIS->"; |
8fc38fda |
975 | } |
93a17b20 |
976 | } |
e50aee73 |
977 | $func_name =~ s/^($spat)// |
978 | if defined($spat); |
93a17b20 |
979 | print "$func_name($func_args);\n"; |
93a17b20 |
980 | } |
981 | } |
982 | |
983 | # do output variables |
8e07c86e |
984 | $gotRETVAL = 0; |
985 | undef $RETVAL_code ; |
986 | undef %outargs ; |
8fc38fda |
987 | process_keyword("OUTPUT|ALIAS|PROTOTYPE"); |
f06db76b |
988 | |
989 | # all OUTPUT done, so now push the return value on the stack |
8e07c86e |
990 | if ($gotRETVAL && $RETVAL_code) { |
991 | print "\t$RETVAL_code\n"; |
992 | } elsif ($gotRETVAL || $wantRETVAL) { |
993 | &generate_output($ret_type, 0, 'RETVAL'); |
994 | } |
e1f0c0aa |
995 | print line_directive(); |
f06db76b |
996 | |
93a17b20 |
997 | # do cleanup |
8fc38fda |
998 | process_keyword("CLEANUP|ALIAS|PROTOTYPE") ; |
8e07c86e |
999 | |
db3b9414 |
1000 | print Q<<"EOF" if $ScopeThisXSUB; |
1001 | # ]] |
1002 | EOF |
1003 | print Q<<"EOF" if $ScopeThisXSUB and not $PPCODE; |
1004 | # LEAVE; |
1005 | EOF |
1006 | |
93a17b20 |
1007 | # print function trailer |
8e07c86e |
1008 | print Q<<EOF; |
2304df62 |
1009 | # ]] |
8e07c86e |
1010 | EOF |
1011 | print Q<<EOF if $except; |
8990e307 |
1012 | # BEGHANDLERS |
1013 | # CATCHALL |
1014 | # sprintf(errbuf, "%s: %s\\tpropagated", Xname, Xreason); |
1015 | # ENDHANDLERS |
93a17b20 |
1016 | EOF |
8e07c86e |
1017 | if (check_keyword("CASE")) { |
1018 | blurt ("Error: No `CASE:' at top of function") |
1019 | unless $condnum; |
1020 | $_ = "CASE: $_"; # Restore CASE: label |
1021 | next; |
8990e307 |
1022 | } |
8e07c86e |
1023 | last if $_ eq "$END:"; |
1024 | death(/^$BLOCK_re/o ? "Misplaced `$1:'" : "Junk at end of function"); |
2304df62 |
1025 | } |
a0d0e21e |
1026 | |
2304df62 |
1027 | print Q<<EOF if $except; |
1028 | # if (errbuf[0]) |
1029 | # croak(errbuf); |
1030 | EOF |
a0d0e21e |
1031 | |
7c5b83de |
1032 | if ($ret_type ne "void" or $EXPLICIT_RETURN) { |
93d3b392 |
1033 | print Q<<EOF unless $PPCODE; |
a0d0e21e |
1034 | # XSRETURN(1); |
1035 | EOF |
93d3b392 |
1036 | } else { |
1037 | print Q<<EOF unless $PPCODE; |
1038 | # XSRETURN_EMPTY; |
1039 | EOF |
1040 | } |
a0d0e21e |
1041 | |
2304df62 |
1042 | print Q<<EOF; |
2304df62 |
1043 | #]] |
8990e307 |
1044 | # |
93a17b20 |
1045 | EOF |
382b8d97 |
1046 | |
4230ab3f |
1047 | my $newXS = "newXS" ; |
1048 | my $proto = "" ; |
1049 | |
382b8d97 |
1050 | # Build the prototype string for the xsub |
1051 | if ($ProtoThisXSUB) { |
4230ab3f |
1052 | $newXS = "newXSproto"; |
1053 | |
1054 | if ($ProtoThisXSUB == 2) { |
1055 | # User has specified empty prototype |
1056 | $proto = ', ""' ; |
1057 | } |
7d41bd0a |
1058 | elsif ($ProtoThisXSUB != 1) { |
1059 | # User has specified a prototype |
4230ab3f |
1060 | $proto = ', "' . $ProtoThisXSUB . '"'; |
382b8d97 |
1061 | } |
1062 | else { |
1063 | my $s = ';'; |
1064 | if ($min_args < $num_args) { |
1065 | $s = ''; |
1066 | $proto_arg[$min_args] .= ";" ; |
1067 | } |
4230ab3f |
1068 | push @proto_arg, "$s\@" |
382b8d97 |
1069 | if $elipsis ; |
1070 | |
4230ab3f |
1071 | $proto = ', "' . join ("", @proto_arg) . '"'; |
382b8d97 |
1072 | } |
1073 | } |
1074 | |
4230ab3f |
1075 | if (%XsubAliases) { |
1076 | $XsubAliases{$pname} = 0 |
1077 | unless defined $XsubAliases{$pname} ; |
1078 | while ( ($name, $value) = each %XsubAliases) { |
1079 | push(@InitFileCode, Q<<"EOF"); |
1080 | # cv = newXS(\"$name\", XS_$Full_func_name, file); |
1081 | # XSANY.any_i32 = $value ; |
1082 | EOF |
1083 | push(@InitFileCode, Q<<"EOF") if $proto; |
1084 | # sv_setpv((SV*)cv$proto) ; |
1085 | EOF |
1086 | } |
1087 | } |
1088 | else { |
1089 | push(@InitFileCode, |
1090 | " ${newXS}(\"$pname\", XS_$Full_func_name, file$proto);\n"); |
1091 | } |
93a17b20 |
1092 | } |
1093 | |
1094 | # print initialization routine |
8990e307 |
1095 | print Q<<"EOF"; |
4633a7c4 |
1096 | ##ifdef __cplusplus |
1097 | #extern "C" |
1098 | ##endif |
a0d0e21e |
1099 | #XS(boot_$Module_cname) |
2304df62 |
1100 | #[[ |
a0d0e21e |
1101 | # dXSARGS; |
8990e307 |
1102 | # char* file = __FILE__; |
1103 | # |
93a17b20 |
1104 | EOF |
1105 | |
8fc38fda |
1106 | print Q<<"EOF" if $WantVersionChk ; |
1107 | # XS_VERSION_BOOTCHECK ; |
1108 | # |
1109 | EOF |
1110 | |
4230ab3f |
1111 | print Q<<"EOF" if defined $XsubAliases ; |
8e07c86e |
1112 | # { |
1113 | # CV * cv ; |
1114 | # |
1115 | EOF |
1116 | |
4230ab3f |
1117 | print @InitFileCode; |
a0d0e21e |
1118 | |
4230ab3f |
1119 | print Q<<"EOF" if defined $XsubAliases ; |
8e07c86e |
1120 | # } |
1121 | EOF |
1122 | |
a0d0e21e |
1123 | if (@BootCode) |
1124 | { |
8e07c86e |
1125 | print "\n /* Initialisation Section */\n" ; |
a0d0e21e |
1126 | print grep (s/$/\n/, @BootCode) ; |
8e07c86e |
1127 | print "\n /* End of Initialisation Section */\n\n" ; |
93a17b20 |
1128 | } |
a0d0e21e |
1129 | |
e50aee73 |
1130 | print Q<<"EOF";; |
1131 | # ST(0) = &sv_yes; |
1132 | # XSRETURN(1); |
1133 | #]] |
1134 | EOF |
1135 | |
8fc38fda |
1136 | warn("Please specify prototyping behavior for $filename (see perlxs manual)\n") |
1137 | unless $ProtoUsed ; |
e50aee73 |
1138 | &Exit; |
1139 | |
93a17b20 |
1140 | |
1141 | sub output_init { |
2304df62 |
1142 | local($type, $num, $init) = @_; |
a0d0e21e |
1143 | local($arg) = "ST(" . ($num - 1) . ")"; |
93a17b20 |
1144 | |
2304df62 |
1145 | eval qq/print " $init\\\n"/; |
93a17b20 |
1146 | } |
1147 | |
e1f0c0aa |
1148 | sub line_directive |
1149 | { |
1150 | # work out the line number |
1151 | my $line_no = $line_no[@line_no - @line -1] ; |
1152 | |
1153 | return "#line $line_no \"$filename\"\n" ; |
1154 | |
1155 | } |
1156 | |
c2960299 |
1157 | sub Warn |
1158 | { |
1159 | # work out the line number |
1160 | my $line_no = $line_no[@line_no - @line -1] ; |
1161 | |
1162 | print STDERR "@_ in $filename, line $line_no\n" ; |
1163 | } |
1164 | |
1165 | sub blurt |
1166 | { |
1167 | Warn @_ ; |
1168 | $errors ++ |
1169 | } |
1170 | |
1171 | sub death |
1172 | { |
1173 | Warn @_ ; |
1174 | exit 1 ; |
1175 | } |
8990e307 |
1176 | |
93a17b20 |
1177 | sub generate_init { |
2304df62 |
1178 | local($type, $num, $var) = @_; |
a0d0e21e |
1179 | local($arg) = "ST(" . ($num - 1) . ")"; |
2304df62 |
1180 | local($argoff) = $num - 1; |
1181 | local($ntype); |
1182 | local($tk); |
93a17b20 |
1183 | |
f06db76b |
1184 | $type = TidyType($type) ; |
c2960299 |
1185 | blurt("Error: '$type' not in typemap"), return |
1186 | unless defined($type_kind{$type}); |
1187 | |
2304df62 |
1188 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
8e07c86e |
1189 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 |
1190 | $tk = $type_kind{$type}; |
1191 | $tk =~ s/OBJ$/REF/ if $func_name =~ /DESTROY$/; |
8e07c86e |
1192 | $type =~ tr/:/_/; |
c2960299 |
1193 | blurt("Error: No INPUT definition for type '$type' found"), return |
1194 | unless defined $input_expr{$tk} ; |
2304df62 |
1195 | $expr = $input_expr{$tk}; |
1196 | if ($expr =~ /DO_ARRAY_ELEM/) { |
c2960299 |
1197 | blurt("Error: '$subtype' not in typemap"), return |
1198 | unless defined($type_kind{$subtype}); |
1199 | blurt("Error: No INPUT definition for type '$subtype' found"), return |
1200 | unless defined $input_expr{$type_kind{$subtype}} ; |
2304df62 |
1201 | $subexpr = $input_expr{$type_kind{$subtype}}; |
1202 | $subexpr =~ s/ntype/subtype/g; |
1203 | $subexpr =~ s/\$arg/ST(ix_$var)/g; |
1204 | $subexpr =~ s/\n\t/\n\t\t/g; |
93d3b392 |
1205 | $subexpr =~ s/is not of (.*\")/[arg %d] is not of $1, ix_$var + 1/g; |
a0d0e21e |
1206 | $subexpr =~ s/\$var/${var}[ix_$var - $argoff]/; |
2304df62 |
1207 | $expr =~ s/DO_ARRAY_ELEM/$subexpr/; |
1208 | } |
db3b9414 |
1209 | if ($expr =~ m#/\*.*scope.*\*/#i) { # "scope" in C comments |
1210 | $ScopeThisXSUB = 1; |
1211 | } |
2304df62 |
1212 | if (defined($defaults{$var})) { |
1213 | $expr =~ s/(\t+)/$1 /g; |
1214 | $expr =~ s/ /\t/g; |
1215 | eval qq/print "\\t$var;\\n"/; |
1216 | $deferred .= eval qq/"\\n\\tif (items < $num)\\n\\t $var = $defaults{$var};\\n\\telse {\\n$expr;\\n\\t}\\n"/; |
db3b9414 |
1217 | } elsif ($ScopeThisXSUB or $expr !~ /^\t\$var =/) { |
2304df62 |
1218 | eval qq/print "\\t$var;\\n"/; |
1219 | $deferred .= eval qq/"\\n$expr;\\n"/; |
1220 | } else { |
1221 | eval qq/print "$expr;\\n"/; |
1222 | } |
93a17b20 |
1223 | } |
1224 | |
1225 | sub generate_output { |
2304df62 |
1226 | local($type, $num, $var) = @_; |
a0d0e21e |
1227 | local($arg) = "ST(" . ($num - ($num != 0)) . ")"; |
2304df62 |
1228 | local($argoff) = $num - 1; |
1229 | local($ntype); |
93a17b20 |
1230 | |
f06db76b |
1231 | $type = TidyType($type) ; |
2304df62 |
1232 | if ($type =~ /^array\(([^,]*),(.*)\)/) { |
1233 | print "\tsv_setpvn($arg, (char *)$var, $2 * sizeof($1)), XFree((char *)$var);\n"; |
1234 | } else { |
f06db76b |
1235 | blurt("Error: '$type' not in typemap"), return |
2304df62 |
1236 | unless defined($type_kind{$type}); |
c2960299 |
1237 | blurt("Error: No OUTPUT definition for type '$type' found"), return |
1238 | unless defined $output_expr{$type_kind{$type}} ; |
2304df62 |
1239 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
1240 | $ntype =~ s/\(\)//g; |
8e07c86e |
1241 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 |
1242 | $expr = $output_expr{$type_kind{$type}}; |
1243 | if ($expr =~ /DO_ARRAY_ELEM/) { |
c2960299 |
1244 | blurt("Error: '$subtype' not in typemap"), return |
1245 | unless defined($type_kind{$subtype}); |
1246 | blurt("Error: No OUTPUT definition for type '$subtype' found"), return |
1247 | unless defined $output_expr{$type_kind{$subtype}} ; |
2304df62 |
1248 | $subexpr = $output_expr{$type_kind{$subtype}}; |
1249 | $subexpr =~ s/ntype/subtype/g; |
1250 | $subexpr =~ s/\$arg/ST(ix_$var)/g; |
1251 | $subexpr =~ s/\$var/${var}[ix_$var]/g; |
1252 | $subexpr =~ s/\n\t/\n\t\t/g; |
1253 | $expr =~ s/DO_ARRAY_ELEM\n/$subexpr/; |
a0d0e21e |
1254 | eval "print qq\a$expr\a"; |
2304df62 |
1255 | } |
a0d0e21e |
1256 | elsif ($var eq 'RETVAL') { |
a2baab1c |
1257 | if ($expr =~ /^\t\$arg = new/) { |
1258 | # We expect that $arg has refcnt 1, so we need to |
1259 | # mortalize it. |
a0d0e21e |
1260 | eval "print qq\a$expr\a"; |
2304df62 |
1261 | print "\tsv_2mortal(ST(0));\n"; |
93a17b20 |
1262 | } |
a2baab1c |
1263 | elsif ($expr =~ /^\s*\$arg\s*=/) { |
1264 | # We expect that $arg has refcnt >=1, so we need |
1265 | # to mortalize it. However, the extension may have |
1266 | # returned the built-in perl value, which is |
1267 | # read-only, thus not mortalizable. However, it is |
1268 | # safe to leave it as it is, since it would be |
1269 | # ignored by REFCNT_dec. Builtin values have REFCNT==0. |
1270 | eval "print qq\a$expr\a"; |
1271 | print "\tif (SvREFCNT(ST(0))) sv_2mortal(ST(0));\n"; |
1272 | } |
2304df62 |
1273 | else { |
a2baab1c |
1274 | # Just hope that the entry would safely write it |
1275 | # over an already mortalized value. By |
1276 | # coincidence, something like $arg = &sv_undef |
1277 | # works too. |
8990e307 |
1278 | print "\tST(0) = sv_newmortal();\n"; |
a0d0e21e |
1279 | eval "print qq\a$expr\a"; |
463ee0b2 |
1280 | } |
2304df62 |
1281 | } |
a0d0e21e |
1282 | elsif ($arg =~ /^ST\(\d+\)$/) { |
1283 | eval "print qq\a$expr\a"; |
1284 | } |
2304df62 |
1285 | } |
93a17b20 |
1286 | } |
1287 | |
1288 | sub map_type { |
e50aee73 |
1289 | my($type) = @_; |
93a17b20 |
1290 | |
8e07c86e |
1291 | $type =~ tr/:/_/; |
1292 | $type =~ s/^array\(([^,]*),(.*)\).*/$1 */s; |
1293 | $type; |
93a17b20 |
1294 | } |
8990e307 |
1295 | |
e50aee73 |
1296 | |
1297 | sub Exit { |
748a9306 |
1298 | # If this is VMS, the exit status has meaning to the shell, so we |
8fc38fda |
1299 | # use a predictable value (SS$_Normal or SS$_Abort) rather than an |
1300 | # arbitrary number. |
1301 | exit ($Is_VMS ? ($errors ? 44 : 1) : $errors) ; |
e50aee73 |
1302 | } |