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 | |
8fc38fda |
74 | perl(1), perlxs(1), perlxstut(1), perlapi(1) |
75f92628 |
75 | |
76 | =cut |
93a17b20 |
77 | |
f06db76b |
78 | # Global Constants |
93d3b392 |
79 | $XSUBPP_version = "1.937"; |
382b8d97 |
80 | require 5.002; |
4230ab3f |
81 | use vars '$cplusplus'; |
382b8d97 |
82 | |
8fc38fda |
83 | sub Q ; |
84 | |
c07a80fd |
85 | $FH = 'File0000' ; |
8fc38fda |
86 | |
87 | $usage = "Usage: xsubpp [-v] [-C++] [-except] [-prototypes] [-noversioncheck] [-s pattern] [-typemap typemap]... file.xs\n"; |
f06db76b |
88 | |
382b8d97 |
89 | $proto_re = "[" . quotemeta('\$%&*@;') . "]" ; |
93a17b20 |
90 | |
8e07c86e |
91 | $except = ""; |
8fc38fda |
92 | $WantPrototypes = -1 ; |
93 | $WantVersionChk = 1 ; |
94 | $ProtoUsed = 0 ; |
8e07c86e |
95 | SWITCH: while (@ARGV and $ARGV[0] =~ /^-./) { |
93a17b20 |
96 | $flag = shift @ARGV; |
e50aee73 |
97 | $flag =~ s/^-// ; |
8990e307 |
98 | $spat = shift, next SWITCH if $flag eq 's'; |
99 | $cplusplus = 1, next SWITCH if $flag eq 'C++'; |
382b8d97 |
100 | $WantPrototypes = 0, next SWITCH if $flag eq 'noprototypes'; |
101 | $WantPrototypes = 1, next SWITCH if $flag eq 'prototypes'; |
8fc38fda |
102 | $WantVersionChk = 0, next SWITCH if $flag eq 'noversioncheck'; |
103 | $WantVersionChk = 1, next SWITCH if $flag eq 'versioncheck'; |
8e07c86e |
104 | $except = " TRY", next SWITCH if $flag eq 'except'; |
8990e307 |
105 | push(@tm,shift), next SWITCH if $flag eq 'typemap'; |
8e07c86e |
106 | (print "xsubpp version $XSUBPP_version\n"), exit |
107 | if $flag eq 'v'; |
93a17b20 |
108 | die $usage; |
109 | } |
8fc38fda |
110 | if ($WantPrototypes == -1) |
111 | { $WantPrototypes = 0} |
112 | else |
113 | { $ProtoUsed = 1 } |
114 | |
115 | |
8990e307 |
116 | @ARGV == 1 or die $usage; |
c2960299 |
117 | ($dir, $filename) = $ARGV[0] =~ m#(.*)/(.*)# |
118 | or ($dir, $filename) = $ARGV[0] =~ m#(.*[>\]])(.*)# |
8990e307 |
119 | or ($dir, $filename) = ('.', $ARGV[0]); |
120 | chdir($dir); |
8fc38fda |
121 | # Check for VMS; Config.pm may not be installed yet, but this routine |
122 | # is built into VMS perl |
123 | if (defined(&VMS::Filespec::vmsify)) { $Is_VMS = 1; $pwd = $ENV{DEFAULT}; } |
124 | else { $Is_VMS = 0; chomp($pwd = `pwd`); } |
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 | $current = \$junk; |
170 | while (<TYPEMAP>) { |
e50aee73 |
171 | next if /^\s*#/; |
8e07c86e |
172 | if (/^INPUT\s*$/) { $mode = 'Input'; $current = \$junk; next; } |
173 | if (/^OUTPUT\s*$/) { $mode = 'Output'; $current = \$junk; next; } |
174 | if (/^TYPEMAP\s*$/) { $mode = 'Typemap'; $current = \$junk; next; } |
e50aee73 |
175 | if ($mode eq 'Typemap') { |
176 | chomp; |
f06db76b |
177 | my $line = $_ ; |
178 | TrimWhitespace($_) ; |
179 | # skip blank lines and comment lines |
180 | next if /^$/ or /^#/ ; |
382b8d97 |
181 | my($type,$kind, $proto) = /^\s*(.*?\S)\s+(\S+)\s*($proto_re*)\s*$/ or |
182 | warn("Warning: File '$typemap' Line $. '$line' TYPEMAP entry needs 2 or 3 columns\n"), next; |
183 | $type = TidyType($type) ; |
184 | $type_kind{$type} = $kind ; |
185 | # prototype defaults to '$' |
93d3b392 |
186 | $proto = "\$" unless $proto ; |
382b8d97 |
187 | warn("Warning: File '$typemap' Line $. '$line' Invalid prototype '$proto'\n") |
188 | unless ValidProtoString($proto) ; |
189 | $proto_letter{$type} = C_string($proto) ; |
8e07c86e |
190 | } |
191 | elsif (/^\s/) { |
192 | $$current .= $_; |
463ee0b2 |
193 | } |
e50aee73 |
194 | elsif ($mode eq 'Input') { |
8e07c86e |
195 | s/\s+$//; |
196 | $input_expr{$_} = ''; |
197 | $current = \$input_expr{$_}; |
93a17b20 |
198 | } |
8990e307 |
199 | else { |
8e07c86e |
200 | s/\s+$//; |
201 | $output_expr{$_} = ''; |
202 | $current = \$output_expr{$_}; |
93a17b20 |
203 | } |
8990e307 |
204 | } |
205 | close(TYPEMAP); |
206 | } |
93a17b20 |
207 | |
8990e307 |
208 | foreach $key (keys %input_expr) { |
209 | $input_expr{$key} =~ s/\n+$//; |
210 | } |
93a17b20 |
211 | |
8e07c86e |
212 | $END = "!End!\n\n"; # "impossible" keyword (multiple newline) |
213 | |
214 | # Match an XS keyword |
382b8d97 |
215 | $BLOCK_re= '\s*(' . join('|', qw( |
216 | REQUIRE BOOT CASE PREINIT INPUT INIT CODE PPCODE OUTPUT |
8fc38fda |
217 | CLEANUP ALIAS PROTOTYPES PROTOTYPE VERSIONCHECK INCLUDE |
382b8d97 |
218 | )) . "|$END)\\s*:"; |
8e07c86e |
219 | |
220 | # Input: ($_, @line) == unparsed input. |
221 | # Output: ($_, @line) == (rest of line, following lines). |
222 | # Return: the matched keyword if found, otherwise 0 |
223 | sub check_keyword { |
224 | $_ = shift(@line) while !/\S/ && @line; |
225 | s/^(\s*)($_[0])\s*:\s*(?:#.*)?/$1/s && $2; |
226 | } |
227 | |
228 | |
229 | sub print_section { |
230 | $_ = shift(@line) while !/\S/ && @line; |
231 | for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) { |
232 | print "$_\n"; |
233 | } |
234 | } |
235 | |
8fc38fda |
236 | sub process_keyword($) |
237 | { |
238 | my($pattern) = @_ ; |
239 | my $kwd ; |
240 | |
241 | &{"${kwd}_handler"}() |
242 | while $kwd = check_keyword($pattern) ; |
243 | } |
244 | |
8e07c86e |
245 | sub CASE_handler { |
246 | blurt ("Error: `CASE:' after unconditional `CASE:'") |
247 | if $condnum && $cond eq ''; |
248 | $cond = $_; |
249 | TrimWhitespace($cond); |
250 | print " ", ($condnum++ ? " else" : ""), ($cond ? " if ($cond)\n" : "\n"); |
251 | $_ = '' ; |
252 | } |
253 | |
254 | sub INPUT_handler { |
255 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
256 | last if /^\s*NOT_IMPLEMENTED_YET/; |
257 | next unless /\S/; # skip blank lines |
258 | |
259 | TrimWhitespace($_) ; |
260 | my $line = $_ ; |
261 | |
262 | # remove trailing semicolon if no initialisation |
263 | s/\s*;$//g unless /=/ ; |
264 | |
265 | # check for optional initialisation code |
266 | my $var_init = '' ; |
267 | $var_init = $1 if s/\s*(=.*)$//s ; |
268 | $var_init =~ s/"/\\"/g; |
269 | |
270 | s/\s+/ /g; |
271 | my ($var_type, $var_addr, $var_name) = /^(.*?[^& ]) *(\&?) *\b(\w+)$/s |
272 | or blurt("Error: invalid argument declaration '$line'"), next; |
273 | |
274 | # Check for duplicate definitions |
275 | blurt ("Error: duplicate definition of argument '$var_name' ignored"), next |
276 | if $arg_list{$var_name} ++ ; |
277 | |
278 | $thisdone |= $var_name eq "THIS"; |
279 | $retvaldone |= $var_name eq "RETVAL"; |
280 | $var_types{$var_name} = $var_type; |
281 | print "\t" . &map_type($var_type); |
282 | $var_num = $args_match{$var_name}; |
382b8d97 |
283 | |
8fc38fda |
284 | $proto_arg[$var_num] = ProtoString($var_type) |
285 | if $var_num ; |
8e07c86e |
286 | if ($var_addr) { |
287 | $var_addr{$var_name} = 1; |
288 | $func_args =~ s/\b($var_name)\b/&$1/; |
289 | } |
290 | if ($var_init =~ /^=\s*NO_INIT\s*;?\s*$/) { |
291 | print "\t$var_name;\n"; |
292 | } elsif ($var_init =~ /\S/) { |
293 | &output_init($var_type, $var_num, "$var_name $var_init"); |
294 | } elsif ($var_num) { |
295 | # generate initialization code |
296 | &generate_init($var_type, $var_num, $var_name); |
297 | } else { |
298 | print ";\n"; |
299 | } |
300 | } |
301 | } |
302 | |
303 | sub OUTPUT_handler { |
304 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
305 | next unless /\S/; |
306 | my ($outarg, $outcode) = /^\s*(\S+)\s*(.*?)\s*$/s ; |
307 | blurt ("Error: duplicate OUTPUT argument '$outarg' ignored"), next |
308 | if $outargs{$outarg} ++ ; |
309 | if (!$gotRETVAL and $outarg eq 'RETVAL') { |
310 | # deal with RETVAL last |
311 | $RETVAL_code = $outcode ; |
312 | $gotRETVAL = 1 ; |
313 | next ; |
314 | } |
315 | blurt ("Error: OUTPUT $outarg not an argument"), next |
316 | unless defined($args_match{$outarg}); |
317 | blurt("Error: No input definition for OUTPUT argument '$outarg' - ignored"), next |
318 | unless defined $var_types{$outarg} ; |
319 | if ($outcode) { |
320 | print "\t$outcode\n"; |
321 | } else { |
322 | $var_num = $args_match{$outarg}; |
323 | &generate_output($var_types{$outarg}, $var_num, $outarg); |
324 | } |
325 | } |
326 | } |
327 | |
8fc38fda |
328 | sub CLEANUP_handler() { print_section() } |
329 | sub PREINIT_handler() { print_section() } |
330 | sub INIT_handler() { print_section() } |
331 | |
8e07c86e |
332 | sub GetAliases |
333 | { |
334 | my ($line) = @_ ; |
335 | my ($orig) = $line ; |
336 | my ($alias) ; |
337 | my ($value) ; |
338 | |
339 | # Parse alias definitions |
340 | # format is |
341 | # alias = value alias = value ... |
342 | |
343 | while ($line =~ s/^\s*([\w:]+)\s*=\s*(\w+)\s*//) { |
344 | $alias = $1 ; |
345 | $orig_alias = $alias ; |
346 | $value = $2 ; |
347 | |
348 | # check for optional package definition in the alias |
349 | $alias = $Packprefix . $alias if $alias !~ /::/ ; |
350 | |
351 | # check for duplicate alias name & duplicate value |
352 | Warn("Warning: Ignoring duplicate alias '$orig_alias'") |
4230ab3f |
353 | if defined $XsubAliases{$alias} ; |
8e07c86e |
354 | |
4230ab3f |
355 | Warn("Warning: Aliases '$orig_alias' and '$XsubAliasValues{$value}' have identical values") |
356 | if $XsubAliasValues{$value} ; |
8e07c86e |
357 | |
4230ab3f |
358 | $XsubAliases = 1; |
359 | $XsubAliases{$alias} = $value ; |
360 | $XsubAliasValues{$value} = $orig_alias ; |
8e07c86e |
361 | } |
362 | |
363 | blurt("Error: Cannot parse ALIAS definitions from '$orig'") |
364 | if $line ; |
365 | } |
366 | |
382b8d97 |
367 | sub ALIAS_handler () |
8e07c86e |
368 | { |
369 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
370 | next unless /\S/; |
371 | TrimWhitespace($_) ; |
372 | GetAliases($_) if $_ ; |
373 | } |
374 | } |
375 | |
382b8d97 |
376 | sub REQUIRE_handler () |
8e07c86e |
377 | { |
378 | # the rest of the current line should contain a version number |
379 | my ($Ver) = $_ ; |
380 | |
381 | TrimWhitespace($Ver) ; |
382 | |
383 | death ("Error: REQUIRE expects a version number") |
384 | unless $Ver ; |
385 | |
386 | # check that the version number is of the form n.n |
387 | death ("Error: REQUIRE: expected a number, got '$Ver'") |
388 | unless $Ver =~ /^\d+(\.\d*)?/ ; |
389 | |
390 | death ("Error: xsubpp $Ver (or better) required--this is only $XSUBPP_version.") |
391 | unless $XSUBPP_version >= $Ver ; |
392 | } |
393 | |
8fc38fda |
394 | sub VERSIONCHECK_handler () |
395 | { |
396 | # the rest of the current line should contain either ENABLE or |
397 | # DISABLE |
398 | |
399 | TrimWhitespace($_) ; |
400 | |
401 | # check for ENABLE/DISABLE |
402 | death ("Error: VERSIONCHECK: ENABLE/DISABLE") |
403 | unless /^(ENABLE|DISABLE)/i ; |
404 | |
405 | $WantVersionChk = 1 if $1 eq 'ENABLE' ; |
406 | $WantVersionChk = 0 if $1 eq 'DISABLE' ; |
407 | |
408 | } |
409 | |
382b8d97 |
410 | sub PROTOTYPE_handler () |
411 | { |
7d41bd0a |
412 | my $specified ; |
413 | |
c07a80fd |
414 | death("Error: Only 1 PROTOTYPE definition allowed per xsub") |
415 | if $proto_in_this_xsub ++ ; |
416 | |
382b8d97 |
417 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
418 | next unless /\S/; |
7d41bd0a |
419 | $specified = 1 ; |
382b8d97 |
420 | TrimWhitespace($_) ; |
421 | if ($_ eq 'DISABLE') { |
422 | $ProtoThisXSUB = 0 |
423 | } |
424 | elsif ($_ eq 'ENABLE') { |
425 | $ProtoThisXSUB = 1 |
426 | } |
427 | else { |
428 | # remove any whitespace |
429 | s/\s+//g ; |
430 | death("Error: Invalid prototype '$_'") |
431 | unless ValidProtoString($_) ; |
432 | $ProtoThisXSUB = C_string($_) ; |
433 | } |
434 | } |
c07a80fd |
435 | |
7d41bd0a |
436 | # If no prototype specified, then assume empty prototype "" |
437 | $ProtoThisXSUB = 2 unless $specified ; |
438 | |
8fc38fda |
439 | $ProtoUsed = 1 ; |
c07a80fd |
440 | |
382b8d97 |
441 | } |
442 | |
443 | sub PROTOTYPES_handler () |
444 | { |
445 | # the rest of the current line should contain either ENABLE or |
446 | # DISABLE |
447 | |
448 | TrimWhitespace($_) ; |
449 | |
450 | # check for ENABLE/DISABLE |
451 | death ("Error: PROTOTYPES: ENABLE/DISABLE") |
452 | unless /^(ENABLE|DISABLE)/i ; |
453 | |
454 | $WantPrototypes = 1 if $1 eq 'ENABLE' ; |
455 | $WantPrototypes = 0 if $1 eq 'DISABLE' ; |
8fc38fda |
456 | $ProtoUsed = 1 ; |
382b8d97 |
457 | |
458 | } |
459 | |
8fc38fda |
460 | sub INCLUDE_handler () |
461 | { |
462 | # the rest of the current line should contain a valid filename |
463 | |
464 | TrimWhitespace($_) ; |
465 | |
8fc38fda |
466 | death("INCLUDE: filename missing") |
467 | unless $_ ; |
468 | |
469 | death("INCLUDE: output pipe is illegal") |
470 | if /^\s*\|/ ; |
471 | |
472 | # simple minded recursion detector |
473 | death("INCLUDE loop detected") |
474 | if $IncludedFiles{$_} ; |
475 | |
476 | ++ $IncludedFiles{$_} unless /\|\s*$/ ; |
477 | |
478 | # Save the current file context. |
4230ab3f |
479 | push(@XSStack, { |
480 | type => 'file', |
8fc38fda |
481 | LastLine => $lastline, |
482 | LastLineNo => $lastline_no, |
483 | Line => \@line, |
484 | LineNo => \@line_no, |
485 | Filename => $filename, |
c07a80fd |
486 | Handle => $FH, |
8fc38fda |
487 | }) ; |
488 | |
c07a80fd |
489 | ++ $FH ; |
8fc38fda |
490 | |
491 | # open the new file |
c07a80fd |
492 | open ($FH, "$_") or death("Cannot open '$_': $!") ; |
8fc38fda |
493 | |
494 | print Q<<"EOF" ; |
495 | # |
496 | #/* INCLUDE: Including '$_' from '$filename' */ |
497 | # |
498 | EOF |
499 | |
8fc38fda |
500 | $filename = $_ ; |
501 | |
c07a80fd |
502 | # Prime the pump by reading the first |
503 | # non-blank line |
504 | |
505 | # skip leading blank lines |
506 | while (<$FH>) { |
507 | last unless /^\s*$/ ; |
508 | } |
509 | |
510 | $lastline = $_ ; |
8fc38fda |
511 | $lastline_no = $. ; |
512 | |
513 | } |
514 | |
515 | sub PopFile() |
516 | { |
4230ab3f |
517 | return 0 unless $XSStack[-1]{type} eq 'file' ; |
518 | |
519 | my $data = pop @XSStack ; |
8fc38fda |
520 | my $ThisFile = $filename ; |
521 | my $isPipe = ($filename =~ /\|\s*$/) ; |
522 | |
523 | -- $IncludedFiles{$filename} |
524 | unless $isPipe ; |
525 | |
c07a80fd |
526 | close $FH ; |
8fc38fda |
527 | |
c07a80fd |
528 | $FH = $data->{Handle} ; |
8fc38fda |
529 | $filename = $data->{Filename} ; |
530 | $lastline = $data->{LastLine} ; |
531 | $lastline_no = $data->{LastLineNo} ; |
532 | @line = @{ $data->{Line} } ; |
533 | @line_no = @{ $data->{LineNo} } ; |
4230ab3f |
534 | |
8fc38fda |
535 | if ($isPipe and $? ) { |
536 | -- $lastline_no ; |
537 | print STDERR "Error reading from pipe '$ThisFile': $! in $filename, line $lastline_no\n" ; |
538 | exit 1 ; |
539 | } |
540 | |
541 | print Q<<"EOF" ; |
542 | # |
543 | #/* INCLUDE: Returning to '$filename' from '$ThisFile' */ |
544 | # |
545 | EOF |
546 | |
547 | return 1 ; |
548 | } |
549 | |
382b8d97 |
550 | sub ValidProtoString ($) |
551 | { |
552 | my($string) = @_ ; |
553 | |
554 | if ( $string =~ /^$proto_re+$/ ) { |
555 | return $string ; |
556 | } |
557 | |
558 | return 0 ; |
559 | } |
560 | |
561 | sub C_string ($) |
562 | { |
563 | my($string) = @_ ; |
564 | |
565 | $string =~ s[\\][\\\\]g ; |
566 | $string ; |
567 | } |
568 | |
569 | sub ProtoString ($) |
570 | { |
571 | my ($type) = @_ ; |
572 | |
93d3b392 |
573 | $proto_letter{$type} or "\$" ; |
382b8d97 |
574 | } |
575 | |
8e07c86e |
576 | sub check_cpp { |
577 | my @cpp = grep(/^\#\s*(?:if|e\w+)/, @line); |
578 | if (@cpp) { |
579 | my ($cpp, $cpplevel); |
580 | for $cpp (@cpp) { |
581 | if ($cpp =~ /^\#\s*if/) { |
582 | $cpplevel++; |
583 | } elsif (!$cpplevel) { |
584 | Warn("Warning: #else/elif/endif without #if in this function"); |
4230ab3f |
585 | print STDERR " (precede it with a blank line if the matching #if is outside the function)\n" |
586 | if $XSStack[-1]{type} eq 'if'; |
8e07c86e |
587 | return; |
588 | } elsif ($cpp =~ /^\#\s*endif/) { |
589 | $cpplevel--; |
590 | } |
591 | } |
592 | Warn("Warning: #if without #endif in this function") if $cpplevel; |
593 | } |
594 | } |
595 | |
596 | |
8990e307 |
597 | sub Q { |
e50aee73 |
598 | my($text) = @_; |
4633a7c4 |
599 | $text =~ s/^#//gm; |
2304df62 |
600 | $text =~ s/\[\[/{/g; |
601 | $text =~ s/\]\]/}/g; |
8990e307 |
602 | $text; |
93a17b20 |
603 | } |
604 | |
c07a80fd |
605 | open($FH, $filename) or die "cannot open $filename: $!\n"; |
c2960299 |
606 | |
f06db76b |
607 | # Identify the version of xsubpp used |
f06db76b |
608 | print <<EOM ; |
e50aee73 |
609 | /* |
610 | * This file was generated automatically by xsubpp version $XSUBPP_version from the |
93d3b392 |
611 | * contents of $filename. Do not edit this file, edit $filename instead. |
e50aee73 |
612 | * |
613 | * ANY CHANGES MADE HERE WILL BE LOST! |
f06db76b |
614 | * |
615 | */ |
e50aee73 |
616 | |
f06db76b |
617 | EOM |
618 | |
619 | |
c07a80fd |
620 | while (<$FH>) { |
e50aee73 |
621 | last if ($Module, $Package, $Prefix) = |
622 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/; |
a0d0e21e |
623 | print $_; |
93a17b20 |
624 | } |
e50aee73 |
625 | &Exit unless defined $_; |
626 | |
8fc38fda |
627 | $lastline = $_; |
628 | $lastline_no = $.; |
93a17b20 |
629 | |
e50aee73 |
630 | |
c07a80fd |
631 | # Read next xsub into @line from ($lastline, <$FH>). |
2304df62 |
632 | sub fetch_para { |
633 | # parse paragraph |
4230ab3f |
634 | death ("Error: Unterminated `#if/#ifdef/#ifndef'") |
635 | if !defined $lastline && $XSStack[-1]{type} eq 'if'; |
2304df62 |
636 | @line = (); |
c2960299 |
637 | @line_no = () ; |
4230ab3f |
638 | return PopFile() if !defined $lastline; |
e50aee73 |
639 | |
640 | if ($lastline =~ |
641 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/) { |
642 | $Module = $1; |
8e07c86e |
643 | $Package = defined($2) ? $2 : ''; # keep -w happy |
644 | $Prefix = defined($3) ? $3 : ''; # keep -w happy |
e50aee73 |
645 | ($Module_cname = $Module) =~ s/\W/_/g; |
8e07c86e |
646 | ($Packid = $Package) =~ tr/:/_/; |
e50aee73 |
647 | $Packprefix = $Package; |
8e07c86e |
648 | $Packprefix .= "::" if $Packprefix ne ""; |
2304df62 |
649 | $lastline = ""; |
e50aee73 |
650 | } |
651 | |
652 | for(;;) { |
653 | if ($lastline !~ /^\s*#/ || |
4230ab3f |
654 | # CPP directives: |
655 | # ANSI: if ifdef ifndef elif else endif define undef |
656 | # line error pragma |
657 | # gcc: warning include_next |
658 | # obj-c: import |
659 | # others: ident (gcc notes that some cpps have this one) |
660 | $lastline =~ /^#[ \t]*(?:(?:if|ifn?def|elif|else|endif|define|undef|pragma|error|warning|line\s+\d+|ident)\b|(?:include(?:_next)?|import)\s*["<].*[>"])/) { |
e50aee73 |
661 | last if $lastline =~ /^\S/ && @line && $line[-1] eq ""; |
662 | push(@line, $lastline); |
663 | push(@line_no, $lastline_no) ; |
93a17b20 |
664 | } |
e50aee73 |
665 | |
666 | # Read next line and continuation lines |
c07a80fd |
667 | last unless defined($lastline = <$FH>); |
e50aee73 |
668 | $lastline_no = $.; |
669 | my $tmp_line; |
670 | $lastline .= $tmp_line |
c07a80fd |
671 | while ($lastline =~ /\\$/ && defined($tmp_line = <$FH>)); |
e50aee73 |
672 | |
8e07c86e |
673 | chomp $lastline; |
e50aee73 |
674 | $lastline =~ s/^\s+$//; |
2304df62 |
675 | } |
e50aee73 |
676 | pop(@line), pop(@line_no) while @line && $line[-1] eq ""; |
e50aee73 |
677 | 1; |
2304df62 |
678 | } |
93a17b20 |
679 | |
c2960299 |
680 | PARAGRAPH: |
8e07c86e |
681 | while (fetch_para()) { |
e50aee73 |
682 | # Print initial preprocessor statements and blank lines |
4230ab3f |
683 | while (@line && $line[0] !~ /^[^\#]/) { |
684 | my $line = shift(@line); |
685 | print $line, "\n"; |
686 | next unless $line =~ /^\#\s*((if)(?:n?def)?|elsif|else|endif)\b/; |
687 | my $statement = $+; |
688 | if ($statement eq 'if') { |
689 | $XSS_work_idx = @XSStack; |
690 | push(@XSStack, {type => 'if'}); |
691 | } else { |
692 | death ("Error: `$statement' with no matching `if'") |
693 | if $XSStack[-1]{type} ne 'if'; |
694 | if ($XSStack[-1]{varname}) { |
695 | push(@InitFileCode, "#endif\n"); |
696 | push(@BootCode, "#endif"); |
697 | } |
698 | |
699 | my(@fns) = keys %{$XSStack[-1]{functions}}; |
700 | if ($statement ne 'endif') { |
701 | # Hide the functions defined in other #if branches, and reset. |
702 | @{$XSStack[-1]{other_functions}}{@fns} = (1) x @fns; |
703 | @{$XSStack[-1]}{qw(varname functions)} = ('', {}); |
704 | } else { |
705 | my($tmp) = pop(@XSStack); |
706 | 0 while (--$XSS_work_idx |
707 | && $XSStack[$XSS_work_idx]{type} ne 'if'); |
708 | # Keep all new defined functions |
709 | push(@fns, keys %{$tmp->{other_functions}}); |
710 | @{$XSStack[$XSS_work_idx]{functions}}{@fns} = (1) x @fns; |
711 | } |
712 | } |
713 | } |
e50aee73 |
714 | |
715 | next PARAGRAPH unless @line; |
716 | |
4230ab3f |
717 | if ($XSS_work_idx && !$XSStack[$XSS_work_idx]{varname}) { |
718 | # We are inside an #if, but have not yet #defined its xsubpp variable. |
719 | print "#define $cpp_next_tmp 1\n\n"; |
720 | push(@InitFileCode, "#if $cpp_next_tmp\n"); |
721 | push(@BootCode, "#if $cpp_next_tmp"); |
722 | $XSStack[$XSS_work_idx]{varname} = $cpp_next_tmp++; |
723 | } |
724 | |
e50aee73 |
725 | death ("Code is not inside a function") |
726 | if $line[0] =~ /^\s/; |
727 | |
2304df62 |
728 | # initialize info arrays |
729 | undef(%args_match); |
730 | undef(%var_types); |
731 | undef(%var_addr); |
732 | undef(%defaults); |
733 | undef($class); |
734 | undef($static); |
735 | undef($elipsis); |
f06db76b |
736 | undef($wantRETVAL) ; |
737 | undef(%arg_list) ; |
382b8d97 |
738 | undef(@proto_arg) ; |
c07a80fd |
739 | undef($proto_in_this_xsub) ; |
382b8d97 |
740 | $ProtoThisXSUB = $WantPrototypes ; |
2304df62 |
741 | |
8e07c86e |
742 | $_ = shift(@line); |
8fc38fda |
743 | while ($kwd = check_keyword("REQUIRE|PROTOTYPES|VERSIONCHECK|INCLUDE")) { |
744 | &{"${kwd}_handler"}() ; |
8e07c86e |
745 | next PARAGRAPH unless @line ; |
746 | $_ = shift(@line); |
747 | } |
c2960299 |
748 | |
8e07c86e |
749 | if (check_keyword("BOOT")) { |
750 | &check_cpp; |
751 | push (@BootCode, $_, @line, "") ; |
c2960299 |
752 | next PARAGRAPH ; |
a0d0e21e |
753 | } |
c2960299 |
754 | |
8e07c86e |
755 | |
756 | # extract return type, function name and arguments |
757 | my($ret_type) = TidyType($_); |
758 | |
c2960299 |
759 | # a function definition needs at least 2 lines |
760 | blurt ("Error: Function definition too short '$ret_type'"), next PARAGRAPH |
761 | unless @line ; |
762 | |
8e07c86e |
763 | $static = 1 if $ret_type =~ s/^static\s+//; |
764 | |
2304df62 |
765 | $func_header = shift(@line); |
c2960299 |
766 | blurt ("Error: Cannot parse function definition from '$func_header'"), next PARAGRAPH |
8e07c86e |
767 | unless $func_header =~ /^(?:([\w:]*)::)?(\w+)\s*\(\s*(.*?)\s*\)\s*$/s; |
c2960299 |
768 | |
8e07c86e |
769 | ($class, $func_name, $orig_args) = ($1, $2, $3) ; |
2304df62 |
770 | ($pname = $func_name) =~ s/^($Prefix)?/$Packprefix/; |
4230ab3f |
771 | $Full_func_name = "${Packid}_$func_name"; |
c2960299 |
772 | |
773 | # Check for duplicate function definition |
4230ab3f |
774 | for $tmp (@XSStack) { |
775 | next unless defined $tmp->{functions}{$Full_func_name}; |
776 | Warn("Warning: duplicate function definition '$func_name' detected"); |
777 | last; |
8e07c86e |
778 | } |
4230ab3f |
779 | $XSStack[$XSS_work_idx]{functions}{$Full_func_name} ++ ; |
780 | %XsubAliases = %XsubAliasValues = (); |
c2960299 |
781 | |
2304df62 |
782 | @args = split(/\s*,\s*/, $orig_args); |
a0d0e21e |
783 | if (defined($class)) { |
8fc38fda |
784 | my $arg0 = ((defined($static) or $func_name =~ /^new/) ? "CLASS" : "THIS"); |
8e07c86e |
785 | unshift(@args, $arg0); |
786 | ($orig_args = "$arg0, $orig_args") =~ s/^$arg0, $/$arg0/; |
2304df62 |
787 | } |
788 | $orig_args =~ s/"/\\"/g; |
789 | $min_args = $num_args = @args; |
790 | foreach $i (0..$num_args-1) { |
791 | if ($args[$i] =~ s/\.\.\.//) { |
792 | $elipsis = 1; |
793 | $min_args--; |
c2960299 |
794 | if ($args[$i] eq '' && $i == $num_args - 1) { |
2304df62 |
795 | pop(@args); |
796 | last; |
797 | } |
798 | } |
8e07c86e |
799 | if ($args[$i] =~ /^([^=]*[^\s=])\s*=\s*(.*)/s) { |
2304df62 |
800 | $min_args--; |
801 | $args[$i] = $1; |
802 | $defaults{$args[$i]} = $2; |
803 | $defaults{$args[$i]} =~ s/"/\\"/g; |
804 | } |
93d3b392 |
805 | $proto_arg[$i+1] = "\$" ; |
2304df62 |
806 | } |
a0d0e21e |
807 | if (defined($class)) { |
2304df62 |
808 | $func_args = join(", ", @args[1..$#args]); |
809 | } else { |
810 | $func_args = join(", ", @args); |
811 | } |
812 | @args_match{@args} = 1..@args; |
813 | |
8e07c86e |
814 | $PPCODE = grep(/^\s*PPCODE\s*:/, @line); |
93d3b392 |
815 | $CODE = grep(/^\s*CODE\s*:/, @line); |
8e07c86e |
816 | $ALIAS = grep(/^\s*ALIAS\s*:/, @line); |
817 | |
2304df62 |
818 | # print function header |
a0d0e21e |
819 | print Q<<"EOF"; |
820 | #XS(XS_${Packid}_$func_name) |
2304df62 |
821 | #[[ |
a0d0e21e |
822 | # dXSARGS; |
93a17b20 |
823 | EOF |
8e07c86e |
824 | print Q<<"EOF" if $ALIAS ; |
825 | # dXSI32; |
826 | EOF |
2304df62 |
827 | if ($elipsis) { |
8e07c86e |
828 | $cond = ($min_args ? qq(items < $min_args) : 0); |
2304df62 |
829 | } |
830 | elsif ($min_args == $num_args) { |
831 | $cond = qq(items != $min_args); |
832 | } |
833 | else { |
834 | $cond = qq(items < $min_args || items > $num_args); |
835 | } |
8990e307 |
836 | |
2304df62 |
837 | print Q<<"EOF" if $except; |
838 | # char errbuf[1024]; |
839 | # *errbuf = '\0'; |
840 | EOF |
841 | |
8e07c86e |
842 | if ($ALIAS) |
843 | { print Q<<"EOF" if $cond } |
844 | # if ($cond) |
845 | # croak("Usage: %s($orig_args)", GvNAME(CvGV(cv))); |
846 | EOF |
847 | else |
848 | { print Q<<"EOF" if $cond } |
849 | # if ($cond) |
8990e307 |
850 | # croak("Usage: $pname($orig_args)"); |
93a17b20 |
851 | EOF |
852 | |
a0d0e21e |
853 | print Q<<"EOF" if $PPCODE; |
854 | # SP -= items; |
855 | EOF |
856 | |
2304df62 |
857 | # Now do a block of some sort. |
93a17b20 |
858 | |
2304df62 |
859 | $condnum = 0; |
8e07c86e |
860 | $cond = ''; # last CASE: condidional |
861 | push(@line, "$END:"); |
862 | push(@line_no, $line_no[-1]); |
863 | $_ = ''; |
864 | &check_cpp; |
2304df62 |
865 | while (@line) { |
8e07c86e |
866 | &CASE_handler if check_keyword("CASE"); |
867 | print Q<<"EOF"; |
868 | # $except [[ |
93a17b20 |
869 | EOF |
870 | |
871 | # do initialization of input variables |
872 | $thisdone = 0; |
873 | $retvaldone = 0; |
463ee0b2 |
874 | $deferred = ""; |
c2960299 |
875 | %arg_list = () ; |
876 | $gotRETVAL = 0; |
f06db76b |
877 | |
8fc38fda |
878 | INPUT_handler() ; |
879 | process_keyword("INPUT|PREINIT|ALIAS|PROTOTYPE") ; |
880 | |
a0d0e21e |
881 | if (!$thisdone && defined($class)) { |
8fc38fda |
882 | if (defined($static) or $func_name =~ /^new/) { |
a0d0e21e |
883 | print "\tchar *"; |
884 | $var_types{"CLASS"} = "char *"; |
885 | &generate_init("char *", 1, "CLASS"); |
886 | } |
887 | else { |
93a17b20 |
888 | print "\t$class *"; |
889 | $var_types{"THIS"} = "$class *"; |
890 | &generate_init("$class *", 1, "THIS"); |
a0d0e21e |
891 | } |
93a17b20 |
892 | } |
893 | |
894 | # do code |
895 | if (/^\s*NOT_IMPLEMENTED_YET/) { |
4633a7c4 |
896 | print "\n\tcroak(\"$pname: not implemented yet\");\n"; |
897 | $_ = '' ; |
93a17b20 |
898 | } else { |
899 | if ($ret_type ne "void") { |
900 | print "\t" . &map_type($ret_type) . "\tRETVAL;\n" |
901 | if !$retvaldone; |
902 | $args_match{"RETVAL"} = 0; |
903 | $var_types{"RETVAL"} = $ret_type; |
904 | } |
8e07c86e |
905 | print $deferred; |
8fc38fda |
906 | process_keyword("INIT|ALIAS|PROTOTYPE") ; |
8e07c86e |
907 | |
908 | if (check_keyword("PPCODE")) { |
8fc38fda |
909 | print_section(); |
8e07c86e |
910 | death ("PPCODE must be last thing") if @line; |
a0d0e21e |
911 | print "\tPUTBACK;\n\treturn;\n"; |
8e07c86e |
912 | } elsif (check_keyword("CODE")) { |
8fc38fda |
913 | print_section() ; |
914 | } elsif (defined($class) and $func_name eq "DESTROY") { |
a0d0e21e |
915 | print "\n\t"; |
8e07c86e |
916 | print "delete THIS;\n"; |
93a17b20 |
917 | } else { |
918 | print "\n\t"; |
919 | if ($ret_type ne "void") { |
463ee0b2 |
920 | print "RETVAL = "; |
e50aee73 |
921 | $wantRETVAL = 1; |
93a17b20 |
922 | } |
923 | if (defined($static)) { |
a0d0e21e |
924 | if ($func_name =~ /^new/) { |
8fc38fda |
925 | $func_name = "$class"; |
8e07c86e |
926 | } else { |
927 | print "${class}::"; |
a0d0e21e |
928 | } |
93a17b20 |
929 | } elsif (defined($class)) { |
8fc38fda |
930 | if ($func_name =~ /^new/) { |
931 | $func_name .= " $class"; |
932 | } else { |
93a17b20 |
933 | print "THIS->"; |
8fc38fda |
934 | } |
93a17b20 |
935 | } |
e50aee73 |
936 | $func_name =~ s/^($spat)// |
937 | if defined($spat); |
93a17b20 |
938 | print "$func_name($func_args);\n"; |
93a17b20 |
939 | } |
940 | } |
941 | |
942 | # do output variables |
8e07c86e |
943 | $gotRETVAL = 0; |
944 | undef $RETVAL_code ; |
945 | undef %outargs ; |
8fc38fda |
946 | process_keyword("OUTPUT|ALIAS|PROTOTYPE"); |
f06db76b |
947 | |
948 | # all OUTPUT done, so now push the return value on the stack |
8e07c86e |
949 | if ($gotRETVAL && $RETVAL_code) { |
950 | print "\t$RETVAL_code\n"; |
951 | } elsif ($gotRETVAL || $wantRETVAL) { |
952 | &generate_output($ret_type, 0, 'RETVAL'); |
953 | } |
f06db76b |
954 | |
93a17b20 |
955 | # do cleanup |
8fc38fda |
956 | process_keyword("CLEANUP|ALIAS|PROTOTYPE") ; |
8e07c86e |
957 | |
93a17b20 |
958 | # print function trailer |
8e07c86e |
959 | print Q<<EOF; |
2304df62 |
960 | # ]] |
8e07c86e |
961 | EOF |
962 | print Q<<EOF if $except; |
8990e307 |
963 | # BEGHANDLERS |
964 | # CATCHALL |
965 | # sprintf(errbuf, "%s: %s\\tpropagated", Xname, Xreason); |
966 | # ENDHANDLERS |
93a17b20 |
967 | EOF |
8e07c86e |
968 | if (check_keyword("CASE")) { |
969 | blurt ("Error: No `CASE:' at top of function") |
970 | unless $condnum; |
971 | $_ = "CASE: $_"; # Restore CASE: label |
972 | next; |
8990e307 |
973 | } |
8e07c86e |
974 | last if $_ eq "$END:"; |
975 | death(/^$BLOCK_re/o ? "Misplaced `$1:'" : "Junk at end of function"); |
2304df62 |
976 | } |
a0d0e21e |
977 | |
2304df62 |
978 | print Q<<EOF if $except; |
979 | # if (errbuf[0]) |
980 | # croak(errbuf); |
981 | EOF |
a0d0e21e |
982 | |
93d3b392 |
983 | if ($ret_type ne "void" or $CODE) { |
984 | print Q<<EOF unless $PPCODE; |
a0d0e21e |
985 | # XSRETURN(1); |
986 | EOF |
93d3b392 |
987 | } else { |
988 | print Q<<EOF unless $PPCODE; |
989 | # XSRETURN_EMPTY; |
990 | EOF |
991 | } |
a0d0e21e |
992 | |
2304df62 |
993 | print Q<<EOF; |
2304df62 |
994 | #]] |
8990e307 |
995 | # |
93a17b20 |
996 | EOF |
382b8d97 |
997 | |
4230ab3f |
998 | my $newXS = "newXS" ; |
999 | my $proto = "" ; |
1000 | |
382b8d97 |
1001 | # Build the prototype string for the xsub |
1002 | if ($ProtoThisXSUB) { |
4230ab3f |
1003 | $newXS = "newXSproto"; |
1004 | |
1005 | if ($ProtoThisXSUB == 2) { |
1006 | # User has specified empty prototype |
1007 | $proto = ', ""' ; |
1008 | } |
7d41bd0a |
1009 | elsif ($ProtoThisXSUB != 1) { |
1010 | # User has specified a prototype |
4230ab3f |
1011 | $proto = ', "' . $ProtoThisXSUB . '"'; |
382b8d97 |
1012 | } |
1013 | else { |
1014 | my $s = ';'; |
1015 | if ($min_args < $num_args) { |
1016 | $s = ''; |
1017 | $proto_arg[$min_args] .= ";" ; |
1018 | } |
4230ab3f |
1019 | push @proto_arg, "$s\@" |
382b8d97 |
1020 | if $elipsis ; |
1021 | |
4230ab3f |
1022 | $proto = ', "' . join ("", @proto_arg) . '"'; |
382b8d97 |
1023 | } |
1024 | } |
1025 | |
4230ab3f |
1026 | if (%XsubAliases) { |
1027 | $XsubAliases{$pname} = 0 |
1028 | unless defined $XsubAliases{$pname} ; |
1029 | while ( ($name, $value) = each %XsubAliases) { |
1030 | push(@InitFileCode, Q<<"EOF"); |
1031 | # cv = newXS(\"$name\", XS_$Full_func_name, file); |
1032 | # XSANY.any_i32 = $value ; |
1033 | EOF |
1034 | push(@InitFileCode, Q<<"EOF") if $proto; |
1035 | # sv_setpv((SV*)cv$proto) ; |
1036 | EOF |
1037 | } |
1038 | } |
1039 | else { |
1040 | push(@InitFileCode, |
1041 | " ${newXS}(\"$pname\", XS_$Full_func_name, file$proto);\n"); |
1042 | } |
93a17b20 |
1043 | } |
1044 | |
1045 | # print initialization routine |
8990e307 |
1046 | print Q<<"EOF"; |
4633a7c4 |
1047 | ##ifdef __cplusplus |
1048 | #extern "C" |
1049 | ##endif |
a0d0e21e |
1050 | #XS(boot_$Module_cname) |
2304df62 |
1051 | #[[ |
a0d0e21e |
1052 | # dXSARGS; |
8990e307 |
1053 | # char* file = __FILE__; |
1054 | # |
93a17b20 |
1055 | EOF |
1056 | |
8fc38fda |
1057 | print Q<<"EOF" if $WantVersionChk ; |
1058 | # XS_VERSION_BOOTCHECK ; |
1059 | # |
1060 | EOF |
1061 | |
4230ab3f |
1062 | print Q<<"EOF" if defined $XsubAliases ; |
8e07c86e |
1063 | # { |
1064 | # CV * cv ; |
1065 | # |
1066 | EOF |
1067 | |
4230ab3f |
1068 | print @InitFileCode; |
a0d0e21e |
1069 | |
4230ab3f |
1070 | print Q<<"EOF" if defined $XsubAliases ; |
8e07c86e |
1071 | # } |
1072 | EOF |
1073 | |
a0d0e21e |
1074 | if (@BootCode) |
1075 | { |
8e07c86e |
1076 | print "\n /* Initialisation Section */\n" ; |
a0d0e21e |
1077 | print grep (s/$/\n/, @BootCode) ; |
8e07c86e |
1078 | print "\n /* End of Initialisation Section */\n\n" ; |
93a17b20 |
1079 | } |
a0d0e21e |
1080 | |
e50aee73 |
1081 | print Q<<"EOF";; |
1082 | # ST(0) = &sv_yes; |
1083 | # XSRETURN(1); |
1084 | #]] |
1085 | EOF |
1086 | |
8fc38fda |
1087 | warn("Please specify prototyping behavior for $filename (see perlxs manual)\n") |
1088 | unless $ProtoUsed ; |
e50aee73 |
1089 | &Exit; |
1090 | |
93a17b20 |
1091 | |
1092 | sub output_init { |
2304df62 |
1093 | local($type, $num, $init) = @_; |
a0d0e21e |
1094 | local($arg) = "ST(" . ($num - 1) . ")"; |
93a17b20 |
1095 | |
2304df62 |
1096 | eval qq/print " $init\\\n"/; |
93a17b20 |
1097 | } |
1098 | |
c2960299 |
1099 | sub Warn |
1100 | { |
1101 | # work out the line number |
1102 | my $line_no = $line_no[@line_no - @line -1] ; |
1103 | |
1104 | print STDERR "@_ in $filename, line $line_no\n" ; |
1105 | } |
1106 | |
1107 | sub blurt |
1108 | { |
1109 | Warn @_ ; |
1110 | $errors ++ |
1111 | } |
1112 | |
1113 | sub death |
1114 | { |
1115 | Warn @_ ; |
1116 | exit 1 ; |
1117 | } |
8990e307 |
1118 | |
93a17b20 |
1119 | sub generate_init { |
2304df62 |
1120 | local($type, $num, $var) = @_; |
a0d0e21e |
1121 | local($arg) = "ST(" . ($num - 1) . ")"; |
2304df62 |
1122 | local($argoff) = $num - 1; |
1123 | local($ntype); |
1124 | local($tk); |
93a17b20 |
1125 | |
f06db76b |
1126 | $type = TidyType($type) ; |
c2960299 |
1127 | blurt("Error: '$type' not in typemap"), return |
1128 | unless defined($type_kind{$type}); |
1129 | |
2304df62 |
1130 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
8e07c86e |
1131 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 |
1132 | $tk = $type_kind{$type}; |
1133 | $tk =~ s/OBJ$/REF/ if $func_name =~ /DESTROY$/; |
8e07c86e |
1134 | $type =~ tr/:/_/; |
c2960299 |
1135 | blurt("Error: No INPUT definition for type '$type' found"), return |
1136 | unless defined $input_expr{$tk} ; |
2304df62 |
1137 | $expr = $input_expr{$tk}; |
1138 | if ($expr =~ /DO_ARRAY_ELEM/) { |
c2960299 |
1139 | blurt("Error: '$subtype' not in typemap"), return |
1140 | unless defined($type_kind{$subtype}); |
1141 | blurt("Error: No INPUT definition for type '$subtype' found"), return |
1142 | unless defined $input_expr{$type_kind{$subtype}} ; |
2304df62 |
1143 | $subexpr = $input_expr{$type_kind{$subtype}}; |
1144 | $subexpr =~ s/ntype/subtype/g; |
1145 | $subexpr =~ s/\$arg/ST(ix_$var)/g; |
1146 | $subexpr =~ s/\n\t/\n\t\t/g; |
93d3b392 |
1147 | $subexpr =~ s/is not of (.*\")/[arg %d] is not of $1, ix_$var + 1/g; |
a0d0e21e |
1148 | $subexpr =~ s/\$var/${var}[ix_$var - $argoff]/; |
2304df62 |
1149 | $expr =~ s/DO_ARRAY_ELEM/$subexpr/; |
1150 | } |
1151 | if (defined($defaults{$var})) { |
1152 | $expr =~ s/(\t+)/$1 /g; |
1153 | $expr =~ s/ /\t/g; |
1154 | eval qq/print "\\t$var;\\n"/; |
1155 | $deferred .= eval qq/"\\n\\tif (items < $num)\\n\\t $var = $defaults{$var};\\n\\telse {\\n$expr;\\n\\t}\\n"/; |
1156 | } elsif ($expr !~ /^\t\$var =/) { |
1157 | eval qq/print "\\t$var;\\n"/; |
1158 | $deferred .= eval qq/"\\n$expr;\\n"/; |
1159 | } else { |
1160 | eval qq/print "$expr;\\n"/; |
1161 | } |
93a17b20 |
1162 | } |
1163 | |
1164 | sub generate_output { |
2304df62 |
1165 | local($type, $num, $var) = @_; |
a0d0e21e |
1166 | local($arg) = "ST(" . ($num - ($num != 0)) . ")"; |
2304df62 |
1167 | local($argoff) = $num - 1; |
1168 | local($ntype); |
93a17b20 |
1169 | |
f06db76b |
1170 | $type = TidyType($type) ; |
2304df62 |
1171 | if ($type =~ /^array\(([^,]*),(.*)\)/) { |
1172 | print "\tsv_setpvn($arg, (char *)$var, $2 * sizeof($1)), XFree((char *)$var);\n"; |
1173 | } else { |
f06db76b |
1174 | blurt("Error: '$type' not in typemap"), return |
2304df62 |
1175 | unless defined($type_kind{$type}); |
c2960299 |
1176 | blurt("Error: No OUTPUT definition for type '$type' found"), return |
1177 | unless defined $output_expr{$type_kind{$type}} ; |
2304df62 |
1178 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
1179 | $ntype =~ s/\(\)//g; |
8e07c86e |
1180 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 |
1181 | $expr = $output_expr{$type_kind{$type}}; |
1182 | if ($expr =~ /DO_ARRAY_ELEM/) { |
c2960299 |
1183 | blurt("Error: '$subtype' not in typemap"), return |
1184 | unless defined($type_kind{$subtype}); |
1185 | blurt("Error: No OUTPUT definition for type '$subtype' found"), return |
1186 | unless defined $output_expr{$type_kind{$subtype}} ; |
2304df62 |
1187 | $subexpr = $output_expr{$type_kind{$subtype}}; |
1188 | $subexpr =~ s/ntype/subtype/g; |
1189 | $subexpr =~ s/\$arg/ST(ix_$var)/g; |
1190 | $subexpr =~ s/\$var/${var}[ix_$var]/g; |
1191 | $subexpr =~ s/\n\t/\n\t\t/g; |
1192 | $expr =~ s/DO_ARRAY_ELEM\n/$subexpr/; |
a0d0e21e |
1193 | eval "print qq\a$expr\a"; |
2304df62 |
1194 | } |
a0d0e21e |
1195 | elsif ($var eq 'RETVAL') { |
93d3b392 |
1196 | if ($expr =~ /^\t\$arg\s*=\s*\$var\s*;/) { |
1197 | eval "print qq\a$expr\a"; |
1198 | print "\tif (SvREFCNT(ST(0))) sv_2mortal(ST(0));\n"; |
1199 | } |
1200 | elsif ($expr =~ /^\t\$arg = /) { |
a0d0e21e |
1201 | eval "print qq\a$expr\a"; |
2304df62 |
1202 | print "\tsv_2mortal(ST(0));\n"; |
93a17b20 |
1203 | } |
2304df62 |
1204 | else { |
8990e307 |
1205 | print "\tST(0) = sv_newmortal();\n"; |
a0d0e21e |
1206 | eval "print qq\a$expr\a"; |
463ee0b2 |
1207 | } |
2304df62 |
1208 | } |
a0d0e21e |
1209 | elsif ($arg =~ /^ST\(\d+\)$/) { |
1210 | eval "print qq\a$expr\a"; |
1211 | } |
2304df62 |
1212 | } |
93a17b20 |
1213 | } |
1214 | |
1215 | sub map_type { |
e50aee73 |
1216 | my($type) = @_; |
93a17b20 |
1217 | |
8e07c86e |
1218 | $type =~ tr/:/_/; |
1219 | $type =~ s/^array\(([^,]*),(.*)\).*/$1 */s; |
1220 | $type; |
93a17b20 |
1221 | } |
8990e307 |
1222 | |
e50aee73 |
1223 | |
1224 | sub Exit { |
748a9306 |
1225 | # If this is VMS, the exit status has meaning to the shell, so we |
8fc38fda |
1226 | # use a predictable value (SS$_Normal or SS$_Abort) rather than an |
1227 | # arbitrary number. |
1228 | exit ($Is_VMS ? ($errors ? 44 : 1) : $errors) ; |
e50aee73 |
1229 | } |