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 | |
c5be433b |
9 | B<xsubpp> [B<-v>] [B<-C++>] [B<-except>] [B<-s pattern>] [B<-prototypes>] [B<-noversioncheck>] [B<-nolinenumbers>] [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 | |
6f1abe2b |
58 | =item B<-nolinenumbers> |
59 | |
60 | Prevents the inclusion of `#line' directives in the output. |
61 | |
c5be433b |
62 | =back |
75f92628 |
63 | |
64 | =head1 ENVIRONMENT |
65 | |
66 | No environment variables are used. |
67 | |
68 | =head1 AUTHOR |
69 | |
70 | Larry Wall |
71 | |
f06db76b |
72 | =head1 MODIFICATION HISTORY |
73 | |
8e07c86e |
74 | See the file F<changes.pod>. |
e50aee73 |
75 | |
75f92628 |
76 | =head1 SEE ALSO |
77 | |
55a00e51 |
78 | perl(1), perlxs(1), perlxstut(1) |
75f92628 |
79 | |
80 | =cut |
93a17b20 |
81 | |
382b8d97 |
82 | require 5.002; |
774d564b |
83 | use Cwd; |
4230ab3f |
84 | use vars '$cplusplus'; |
7ad6fb0b |
85 | use vars '%v'; |
382b8d97 |
86 | |
01f988be |
87 | use Config; |
88 | |
aa689395 |
89 | sub Q ; |
90 | |
774d564b |
91 | # Global Constants |
774d564b |
92 | |
cfc02341 |
93 | $XSUBPP_version = "1.9507"; |
aa689395 |
94 | |
95 | my ($Is_VMS, $SymSet); |
96 | if ($^O eq 'VMS') { |
97 | $Is_VMS = 1; |
98 | # Establish set of global symbols with max length 28, since xsubpp |
99 | # will later add the 'XS_' prefix. |
100 | require ExtUtils::XSSymSet; |
101 | $SymSet = new ExtUtils::XSSymSet 28; |
102 | } |
8fc38fda |
103 | |
c07a80fd |
104 | $FH = 'File0000' ; |
8fc38fda |
105 | |
6f1abe2b |
106 | $usage = "Usage: xsubpp [-v] [-C++] [-except] [-prototypes] [-noversioncheck] [-nolinenumbers] [-s pattern] [-typemap typemap]... file.xs\n"; |
f06db76b |
107 | |
382b8d97 |
108 | $proto_re = "[" . quotemeta('\$%&*@;') . "]" ; |
01f988be |
109 | # mjn |
110 | $OBJ = 1 if $Config{'ccflags'} =~ /PERL_OBJECT/i; |
93a17b20 |
111 | |
8e07c86e |
112 | $except = ""; |
8fc38fda |
113 | $WantPrototypes = -1 ; |
114 | $WantVersionChk = 1 ; |
115 | $ProtoUsed = 0 ; |
6f1abe2b |
116 | $WantLineNumbers = 1 ; |
8e07c86e |
117 | SWITCH: while (@ARGV and $ARGV[0] =~ /^-./) { |
93a17b20 |
118 | $flag = shift @ARGV; |
e50aee73 |
119 | $flag =~ s/^-// ; |
ff68c719 |
120 | $spat = quotemeta shift, next SWITCH if $flag eq 's'; |
8990e307 |
121 | $cplusplus = 1, next SWITCH if $flag eq 'C++'; |
382b8d97 |
122 | $WantPrototypes = 0, next SWITCH if $flag eq 'noprototypes'; |
123 | $WantPrototypes = 1, next SWITCH if $flag eq 'prototypes'; |
8fc38fda |
124 | $WantVersionChk = 0, next SWITCH if $flag eq 'noversioncheck'; |
125 | $WantVersionChk = 1, next SWITCH if $flag eq 'versioncheck'; |
c5be433b |
126 | # XXX left this in for compat |
b207eff1 |
127 | $WantCAPI = 1, next SWITCH if $flag eq 'object_capi'; |
8e07c86e |
128 | $except = " TRY", next SWITCH if $flag eq 'except'; |
8990e307 |
129 | push(@tm,shift), next SWITCH if $flag eq 'typemap'; |
6f1abe2b |
130 | $WantLineNumbers = 0, next SWITCH if $flag eq 'nolinenumbers'; |
131 | $WantLineNumbers = 1, next SWITCH if $flag eq 'linenumbers'; |
8e07c86e |
132 | (print "xsubpp version $XSUBPP_version\n"), exit |
133 | if $flag eq 'v'; |
93a17b20 |
134 | die $usage; |
135 | } |
8fc38fda |
136 | if ($WantPrototypes == -1) |
137 | { $WantPrototypes = 0} |
138 | else |
139 | { $ProtoUsed = 1 } |
140 | |
141 | |
8990e307 |
142 | @ARGV == 1 or die $usage; |
c2960299 |
143 | ($dir, $filename) = $ARGV[0] =~ m#(.*)/(.*)# |
57497940 |
144 | or ($dir, $filename) = $ARGV[0] =~ m#(.*)\\(.*)# |
c2960299 |
145 | or ($dir, $filename) = $ARGV[0] =~ m#(.*[>\]])(.*)# |
8990e307 |
146 | or ($dir, $filename) = ('.', $ARGV[0]); |
147 | chdir($dir); |
774d564b |
148 | $pwd = cwd(); |
8fc38fda |
149 | |
150 | ++ $IncludedFiles{$ARGV[0]} ; |
93a17b20 |
151 | |
4230ab3f |
152 | my(@XSStack) = ({type => 'none'}); # Stack of conditionals and INCLUDEs |
153 | my($XSS_work_idx, $cpp_next_tmp) = (0, "XSubPPtmpAAAA"); |
aa689395 |
154 | |
4230ab3f |
155 | |
f06db76b |
156 | sub TrimWhitespace |
157 | { |
158 | $_[0] =~ s/^\s+|\s+$//go ; |
159 | } |
160 | |
161 | sub TidyType |
162 | { |
163 | local ($_) = @_ ; |
164 | |
165 | # rationalise any '*' by joining them into bunches and removing whitespace |
166 | s#\s*(\*+)\s*#$1#g; |
e50aee73 |
167 | s#(\*+)# $1 #g ; |
f06db76b |
168 | |
169 | # change multiple whitespace into a single space |
170 | s/\s+/ /g ; |
171 | |
172 | # trim leading & trailing whitespace |
173 | TrimWhitespace($_) ; |
174 | |
175 | $_ ; |
176 | } |
177 | |
93a17b20 |
178 | $typemap = shift @ARGV; |
8990e307 |
179 | foreach $typemap (@tm) { |
180 | die "Can't find $typemap in $pwd\n" unless -r $typemap; |
93a17b20 |
181 | } |
748a9306 |
182 | unshift @tm, qw(../../../../lib/ExtUtils/typemap ../../../lib/ExtUtils/typemap |
183 | ../../lib/ExtUtils/typemap ../../../typemap ../../typemap |
184 | ../typemap typemap); |
8990e307 |
185 | foreach $typemap (@tm) { |
f06db76b |
186 | next unless -e $typemap ; |
187 | # skip directories, binary files etc. |
188 | warn("Warning: ignoring non-text typemap file '$typemap'\n"), next |
189 | unless -T $typemap ; |
190 | open(TYPEMAP, $typemap) |
191 | or warn ("Warning: could not open typemap file '$typemap': $!\n"), next; |
e50aee73 |
192 | $mode = 'Typemap'; |
c2960299 |
193 | $junk = "" ; |
8990e307 |
194 | $current = \$junk; |
195 | while (<TYPEMAP>) { |
e50aee73 |
196 | next if /^\s*#/; |
e1f0c0aa |
197 | my $line_no = $. + 1; |
8e07c86e |
198 | if (/^INPUT\s*$/) { $mode = 'Input'; $current = \$junk; next; } |
199 | if (/^OUTPUT\s*$/) { $mode = 'Output'; $current = \$junk; next; } |
200 | if (/^TYPEMAP\s*$/) { $mode = 'Typemap'; $current = \$junk; next; } |
e50aee73 |
201 | if ($mode eq 'Typemap') { |
202 | chomp; |
f06db76b |
203 | my $line = $_ ; |
204 | TrimWhitespace($_) ; |
205 | # skip blank lines and comment lines |
206 | next if /^$/ or /^#/ ; |
382b8d97 |
207 | my($type,$kind, $proto) = /^\s*(.*?\S)\s+(\S+)\s*($proto_re*)\s*$/ or |
208 | warn("Warning: File '$typemap' Line $. '$line' TYPEMAP entry needs 2 or 3 columns\n"), next; |
209 | $type = TidyType($type) ; |
210 | $type_kind{$type} = $kind ; |
211 | # prototype defaults to '$' |
93d3b392 |
212 | $proto = "\$" unless $proto ; |
382b8d97 |
213 | warn("Warning: File '$typemap' Line $. '$line' Invalid prototype '$proto'\n") |
214 | unless ValidProtoString($proto) ; |
215 | $proto_letter{$type} = C_string($proto) ; |
8e07c86e |
216 | } |
217 | elsif (/^\s/) { |
218 | $$current .= $_; |
463ee0b2 |
219 | } |
e50aee73 |
220 | elsif ($mode eq 'Input') { |
8e07c86e |
221 | s/\s+$//; |
222 | $input_expr{$_} = ''; |
223 | $current = \$input_expr{$_}; |
93a17b20 |
224 | } |
8990e307 |
225 | else { |
8e07c86e |
226 | s/\s+$//; |
227 | $output_expr{$_} = ''; |
228 | $current = \$output_expr{$_}; |
93a17b20 |
229 | } |
8990e307 |
230 | } |
231 | close(TYPEMAP); |
232 | } |
93a17b20 |
233 | |
8990e307 |
234 | foreach $key (keys %input_expr) { |
235 | $input_expr{$key} =~ s/\n+$//; |
236 | } |
93a17b20 |
237 | |
8e07c86e |
238 | $END = "!End!\n\n"; # "impossible" keyword (multiple newline) |
239 | |
240 | # Match an XS keyword |
382b8d97 |
241 | $BLOCK_re= '\s*(' . join('|', qw( |
242 | REQUIRE BOOT CASE PREINIT INPUT INIT CODE PPCODE OUTPUT |
8fc38fda |
243 | CLEANUP ALIAS PROTOTYPES PROTOTYPE VERSIONCHECK INCLUDE |
cfc02341 |
244 | SCOPE INTERFACE INTERFACE_MACRO C_ARGS |
382b8d97 |
245 | )) . "|$END)\\s*:"; |
8e07c86e |
246 | |
247 | # Input: ($_, @line) == unparsed input. |
248 | # Output: ($_, @line) == (rest of line, following lines). |
249 | # Return: the matched keyword if found, otherwise 0 |
250 | sub check_keyword { |
251 | $_ = shift(@line) while !/\S/ && @line; |
252 | s/^(\s*)($_[0])\s*:\s*(?:#.*)?/$1/s && $2; |
253 | } |
254 | |
255 | |
6f1abe2b |
256 | if ($WantLineNumbers) { |
257 | { |
258 | package xsubpp::counter; |
259 | sub TIEHANDLE { |
260 | my ($class, $cfile) = @_; |
261 | my $buf = ""; |
262 | $SECTION_END_MARKER = "#line --- \"$cfile\""; |
263 | $line_no = 1; |
264 | bless \$buf; |
265 | } |
266 | |
267 | sub PRINT { |
268 | my $self = shift; |
269 | for (@_) { |
270 | $$self .= $_; |
271 | while ($$self =~ s/^([^\n]*\n)//) { |
272 | my $line = $1; |
273 | ++ $line_no; |
274 | $line =~ s|^\#line\s+---(?=\s)|#line $line_no|; |
275 | print STDOUT $line; |
276 | } |
277 | } |
278 | } |
279 | |
280 | sub PRINTF { |
281 | my $self = shift; |
282 | my $fmt = shift; |
283 | $self->PRINT(sprintf($fmt, @_)); |
284 | } |
285 | |
286 | sub DESTROY { |
287 | # Not necessary if we're careful to end with a "\n" |
288 | my $self = shift; |
289 | print STDOUT $$self; |
290 | } |
291 | } |
292 | |
293 | my $cfile = $filename; |
294 | $cfile =~ s/\.xs$/.c/i or $cfile .= ".c"; |
295 | tie(*PSEUDO_STDOUT, 'xsubpp::counter', $cfile); |
296 | select PSEUDO_STDOUT; |
297 | } |
298 | |
8e07c86e |
299 | sub print_section { |
6f1abe2b |
300 | # the "do" is required for right semantics |
301 | do { $_ = shift(@line) } while !/\S/ && @line; |
302 | |
303 | print("#line ", $line_no[@line_no - @line -1], " \"$filename\"\n") |
d3308daf |
304 | if $WantLineNumbers && !/^\s*#\s*line\b/ && !/^#if XSubPPtmp/; |
8e07c86e |
305 | for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) { |
306 | print "$_\n"; |
307 | } |
6f1abe2b |
308 | print "$xsubpp::counter::SECTION_END_MARKER\n" if $WantLineNumbers; |
8e07c86e |
309 | } |
310 | |
cfc02341 |
311 | sub merge_section { |
312 | my $in = ''; |
313 | |
314 | while (!/\S/ && @line) { |
315 | $_ = shift(@line); |
316 | } |
317 | |
318 | for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) { |
319 | $in .= "$_\n"; |
320 | } |
321 | chomp $in; |
322 | return $in; |
323 | } |
324 | |
8fc38fda |
325 | sub process_keyword($) |
326 | { |
327 | my($pattern) = @_ ; |
328 | my $kwd ; |
329 | |
330 | &{"${kwd}_handler"}() |
331 | while $kwd = check_keyword($pattern) ; |
332 | } |
333 | |
8e07c86e |
334 | sub CASE_handler { |
335 | blurt ("Error: `CASE:' after unconditional `CASE:'") |
336 | if $condnum && $cond eq ''; |
337 | $cond = $_; |
338 | TrimWhitespace($cond); |
339 | print " ", ($condnum++ ? " else" : ""), ($cond ? " if ($cond)\n" : "\n"); |
340 | $_ = '' ; |
341 | } |
342 | |
343 | sub INPUT_handler { |
344 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
345 | last if /^\s*NOT_IMPLEMENTED_YET/; |
346 | next unless /\S/; # skip blank lines |
347 | |
348 | TrimWhitespace($_) ; |
349 | my $line = $_ ; |
350 | |
351 | # remove trailing semicolon if no initialisation |
7ad6fb0b |
352 | s/\s*;$//g unless /[=;+].*\S/ ; |
8e07c86e |
353 | |
354 | # check for optional initialisation code |
355 | my $var_init = '' ; |
7ad6fb0b |
356 | $var_init = $1 if s/\s*([=;+].*)$//s ; |
8e07c86e |
357 | $var_init =~ s/"/\\"/g; |
358 | |
359 | s/\s+/ /g; |
360 | my ($var_type, $var_addr, $var_name) = /^(.*?[^& ]) *(\&?) *\b(\w+)$/s |
361 | or blurt("Error: invalid argument declaration '$line'"), next; |
362 | |
363 | # Check for duplicate definitions |
364 | blurt ("Error: duplicate definition of argument '$var_name' ignored"), next |
365 | if $arg_list{$var_name} ++ ; |
366 | |
367 | $thisdone |= $var_name eq "THIS"; |
368 | $retvaldone |= $var_name eq "RETVAL"; |
369 | $var_types{$var_name} = $var_type; |
370 | print "\t" . &map_type($var_type); |
371 | $var_num = $args_match{$var_name}; |
382b8d97 |
372 | |
8fc38fda |
373 | $proto_arg[$var_num] = ProtoString($var_type) |
374 | if $var_num ; |
8e07c86e |
375 | if ($var_addr) { |
376 | $var_addr{$var_name} = 1; |
377 | $func_args =~ s/\b($var_name)\b/&$1/; |
378 | } |
7ad6fb0b |
379 | if ($var_init =~ /^[=;]\s*NO_INIT\s*;?\s*$/) { |
8e07c86e |
380 | print "\t$var_name;\n"; |
381 | } elsif ($var_init =~ /\S/) { |
7ad6fb0b |
382 | &output_init($var_type, $var_num, $var_name, $var_init); |
8e07c86e |
383 | } elsif ($var_num) { |
384 | # generate initialization code |
385 | &generate_init($var_type, $var_num, $var_name); |
386 | } else { |
387 | print ";\n"; |
388 | } |
389 | } |
390 | } |
391 | |
392 | sub OUTPUT_handler { |
393 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
394 | next unless /\S/; |
ef50df4b |
395 | if (/^\s*SETMAGIC\s*:\s*(ENABLE|DISABLE)\s*/) { |
396 | $DoSetMagic = ($1 eq "ENABLE" ? 1 : 0); |
397 | next; |
398 | } |
8e07c86e |
399 | my ($outarg, $outcode) = /^\s*(\S+)\s*(.*?)\s*$/s ; |
400 | blurt ("Error: duplicate OUTPUT argument '$outarg' ignored"), next |
401 | if $outargs{$outarg} ++ ; |
402 | if (!$gotRETVAL and $outarg eq 'RETVAL') { |
403 | # deal with RETVAL last |
404 | $RETVAL_code = $outcode ; |
405 | $gotRETVAL = 1 ; |
406 | next ; |
407 | } |
408 | blurt ("Error: OUTPUT $outarg not an argument"), next |
409 | unless defined($args_match{$outarg}); |
410 | blurt("Error: No input definition for OUTPUT argument '$outarg' - ignored"), next |
411 | unless defined $var_types{$outarg} ; |
f78230ad |
412 | $var_num = $args_match{$outarg}; |
8e07c86e |
413 | if ($outcode) { |
414 | print "\t$outcode\n"; |
f78230ad |
415 | print "\tSvSETMAGIC(ST(" , $var_num-1 , "));\n" if $DoSetMagic; |
8e07c86e |
416 | } else { |
ef50df4b |
417 | &generate_output($var_types{$outarg}, $var_num, $outarg, $DoSetMagic); |
8e07c86e |
418 | } |
419 | } |
420 | } |
421 | |
cfc02341 |
422 | sub C_ARGS_handler() { |
423 | my $in = merge_section(); |
424 | |
425 | TrimWhitespace($in); |
426 | $func_args = $in; |
427 | } |
428 | |
429 | sub INTERFACE_MACRO_handler() { |
430 | my $in = merge_section(); |
431 | |
432 | TrimWhitespace($in); |
433 | if ($in =~ /\s/) { # two |
434 | ($interface_macro, $interface_macro_set) = split ' ', $in; |
435 | } else { |
436 | $interface_macro = $in; |
437 | $interface_macro_set = 'UNKNOWN_CVT'; # catch later |
438 | } |
439 | $interface = 1; # local |
440 | $Interfaces = 1; # global |
441 | } |
442 | |
443 | sub INTERFACE_handler() { |
444 | my $in = merge_section(); |
445 | |
446 | TrimWhitespace($in); |
447 | |
448 | foreach (split /[\s,]+/, $in) { |
449 | $Interfaces{$_} = $_; |
450 | } |
451 | print Q<<"EOF"; |
452 | # XSFUNCTION = $interface_macro($ret_type,cv,XSANY.any_dptr); |
453 | EOF |
454 | $interface = 1; # local |
455 | $Interfaces = 1; # global |
456 | } |
457 | |
8fc38fda |
458 | sub CLEANUP_handler() { print_section() } |
459 | sub PREINIT_handler() { print_section() } |
460 | sub INIT_handler() { print_section() } |
461 | |
8e07c86e |
462 | sub GetAliases |
463 | { |
464 | my ($line) = @_ ; |
465 | my ($orig) = $line ; |
466 | my ($alias) ; |
467 | my ($value) ; |
468 | |
469 | # Parse alias definitions |
470 | # format is |
471 | # alias = value alias = value ... |
472 | |
473 | while ($line =~ s/^\s*([\w:]+)\s*=\s*(\w+)\s*//) { |
474 | $alias = $1 ; |
475 | $orig_alias = $alias ; |
476 | $value = $2 ; |
477 | |
478 | # check for optional package definition in the alias |
479 | $alias = $Packprefix . $alias if $alias !~ /::/ ; |
480 | |
481 | # check for duplicate alias name & duplicate value |
482 | Warn("Warning: Ignoring duplicate alias '$orig_alias'") |
4230ab3f |
483 | if defined $XsubAliases{$alias} ; |
8e07c86e |
484 | |
4230ab3f |
485 | Warn("Warning: Aliases '$orig_alias' and '$XsubAliasValues{$value}' have identical values") |
486 | if $XsubAliasValues{$value} ; |
8e07c86e |
487 | |
4230ab3f |
488 | $XsubAliases = 1; |
489 | $XsubAliases{$alias} = $value ; |
490 | $XsubAliasValues{$value} = $orig_alias ; |
8e07c86e |
491 | } |
492 | |
493 | blurt("Error: Cannot parse ALIAS definitions from '$orig'") |
494 | if $line ; |
495 | } |
496 | |
382b8d97 |
497 | sub ALIAS_handler () |
8e07c86e |
498 | { |
499 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
500 | next unless /\S/; |
501 | TrimWhitespace($_) ; |
502 | GetAliases($_) if $_ ; |
503 | } |
504 | } |
505 | |
382b8d97 |
506 | sub REQUIRE_handler () |
8e07c86e |
507 | { |
508 | # the rest of the current line should contain a version number |
509 | my ($Ver) = $_ ; |
510 | |
511 | TrimWhitespace($Ver) ; |
512 | |
513 | death ("Error: REQUIRE expects a version number") |
514 | unless $Ver ; |
515 | |
516 | # check that the version number is of the form n.n |
517 | death ("Error: REQUIRE: expected a number, got '$Ver'") |
518 | unless $Ver =~ /^\d+(\.\d*)?/ ; |
519 | |
520 | death ("Error: xsubpp $Ver (or better) required--this is only $XSUBPP_version.") |
521 | unless $XSUBPP_version >= $Ver ; |
522 | } |
523 | |
8fc38fda |
524 | sub VERSIONCHECK_handler () |
525 | { |
526 | # the rest of the current line should contain either ENABLE or |
527 | # DISABLE |
528 | |
529 | TrimWhitespace($_) ; |
530 | |
531 | # check for ENABLE/DISABLE |
532 | death ("Error: VERSIONCHECK: ENABLE/DISABLE") |
533 | unless /^(ENABLE|DISABLE)/i ; |
534 | |
535 | $WantVersionChk = 1 if $1 eq 'ENABLE' ; |
536 | $WantVersionChk = 0 if $1 eq 'DISABLE' ; |
537 | |
538 | } |
539 | |
382b8d97 |
540 | sub PROTOTYPE_handler () |
541 | { |
7d41bd0a |
542 | my $specified ; |
543 | |
c07a80fd |
544 | death("Error: Only 1 PROTOTYPE definition allowed per xsub") |
545 | if $proto_in_this_xsub ++ ; |
546 | |
382b8d97 |
547 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
548 | next unless /\S/; |
7d41bd0a |
549 | $specified = 1 ; |
382b8d97 |
550 | TrimWhitespace($_) ; |
551 | if ($_ eq 'DISABLE') { |
552 | $ProtoThisXSUB = 0 |
553 | } |
554 | elsif ($_ eq 'ENABLE') { |
555 | $ProtoThisXSUB = 1 |
556 | } |
557 | else { |
558 | # remove any whitespace |
559 | s/\s+//g ; |
560 | death("Error: Invalid prototype '$_'") |
561 | unless ValidProtoString($_) ; |
562 | $ProtoThisXSUB = C_string($_) ; |
563 | } |
564 | } |
c07a80fd |
565 | |
7d41bd0a |
566 | # If no prototype specified, then assume empty prototype "" |
567 | $ProtoThisXSUB = 2 unless $specified ; |
568 | |
8fc38fda |
569 | $ProtoUsed = 1 ; |
c07a80fd |
570 | |
382b8d97 |
571 | } |
572 | |
db3b9414 |
573 | sub SCOPE_handler () |
574 | { |
575 | death("Error: Only 1 SCOPE declaration allowed per xsub") |
576 | if $scope_in_this_xsub ++ ; |
577 | |
578 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
579 | next unless /\S/; |
580 | TrimWhitespace($_) ; |
581 | if ($_ =~ /^DISABLE/i) { |
582 | $ScopeThisXSUB = 0 |
583 | } |
584 | elsif ($_ =~ /^ENABLE/i) { |
585 | $ScopeThisXSUB = 1 |
586 | } |
587 | } |
588 | |
589 | } |
590 | |
382b8d97 |
591 | sub PROTOTYPES_handler () |
592 | { |
593 | # the rest of the current line should contain either ENABLE or |
594 | # DISABLE |
595 | |
596 | TrimWhitespace($_) ; |
597 | |
598 | # check for ENABLE/DISABLE |
599 | death ("Error: PROTOTYPES: ENABLE/DISABLE") |
600 | unless /^(ENABLE|DISABLE)/i ; |
601 | |
602 | $WantPrototypes = 1 if $1 eq 'ENABLE' ; |
603 | $WantPrototypes = 0 if $1 eq 'DISABLE' ; |
8fc38fda |
604 | $ProtoUsed = 1 ; |
382b8d97 |
605 | |
606 | } |
607 | |
8fc38fda |
608 | sub INCLUDE_handler () |
609 | { |
610 | # the rest of the current line should contain a valid filename |
611 | |
612 | TrimWhitespace($_) ; |
613 | |
8fc38fda |
614 | death("INCLUDE: filename missing") |
615 | unless $_ ; |
616 | |
617 | death("INCLUDE: output pipe is illegal") |
618 | if /^\s*\|/ ; |
619 | |
620 | # simple minded recursion detector |
621 | death("INCLUDE loop detected") |
622 | if $IncludedFiles{$_} ; |
623 | |
624 | ++ $IncludedFiles{$_} unless /\|\s*$/ ; |
625 | |
626 | # Save the current file context. |
4230ab3f |
627 | push(@XSStack, { |
628 | type => 'file', |
8fc38fda |
629 | LastLine => $lastline, |
630 | LastLineNo => $lastline_no, |
631 | Line => \@line, |
632 | LineNo => \@line_no, |
633 | Filename => $filename, |
c07a80fd |
634 | Handle => $FH, |
8fc38fda |
635 | }) ; |
636 | |
c07a80fd |
637 | ++ $FH ; |
8fc38fda |
638 | |
639 | # open the new file |
c07a80fd |
640 | open ($FH, "$_") or death("Cannot open '$_': $!") ; |
8fc38fda |
641 | |
642 | print Q<<"EOF" ; |
643 | # |
644 | #/* INCLUDE: Including '$_' from '$filename' */ |
645 | # |
646 | EOF |
647 | |
8fc38fda |
648 | $filename = $_ ; |
649 | |
c07a80fd |
650 | # Prime the pump by reading the first |
651 | # non-blank line |
652 | |
653 | # skip leading blank lines |
654 | while (<$FH>) { |
655 | last unless /^\s*$/ ; |
656 | } |
657 | |
658 | $lastline = $_ ; |
8fc38fda |
659 | $lastline_no = $. ; |
660 | |
661 | } |
662 | |
663 | sub PopFile() |
664 | { |
4230ab3f |
665 | return 0 unless $XSStack[-1]{type} eq 'file' ; |
666 | |
667 | my $data = pop @XSStack ; |
8fc38fda |
668 | my $ThisFile = $filename ; |
669 | my $isPipe = ($filename =~ /\|\s*$/) ; |
670 | |
671 | -- $IncludedFiles{$filename} |
672 | unless $isPipe ; |
673 | |
c07a80fd |
674 | close $FH ; |
8fc38fda |
675 | |
c07a80fd |
676 | $FH = $data->{Handle} ; |
8fc38fda |
677 | $filename = $data->{Filename} ; |
678 | $lastline = $data->{LastLine} ; |
679 | $lastline_no = $data->{LastLineNo} ; |
680 | @line = @{ $data->{Line} } ; |
681 | @line_no = @{ $data->{LineNo} } ; |
4230ab3f |
682 | |
8fc38fda |
683 | if ($isPipe and $? ) { |
684 | -- $lastline_no ; |
685 | print STDERR "Error reading from pipe '$ThisFile': $! in $filename, line $lastline_no\n" ; |
686 | exit 1 ; |
687 | } |
688 | |
689 | print Q<<"EOF" ; |
690 | # |
691 | #/* INCLUDE: Returning to '$filename' from '$ThisFile' */ |
692 | # |
693 | EOF |
694 | |
695 | return 1 ; |
696 | } |
697 | |
382b8d97 |
698 | sub ValidProtoString ($) |
699 | { |
700 | my($string) = @_ ; |
701 | |
702 | if ( $string =~ /^$proto_re+$/ ) { |
703 | return $string ; |
704 | } |
705 | |
706 | return 0 ; |
707 | } |
708 | |
709 | sub C_string ($) |
710 | { |
711 | my($string) = @_ ; |
712 | |
713 | $string =~ s[\\][\\\\]g ; |
714 | $string ; |
715 | } |
716 | |
717 | sub ProtoString ($) |
718 | { |
719 | my ($type) = @_ ; |
720 | |
93d3b392 |
721 | $proto_letter{$type} or "\$" ; |
382b8d97 |
722 | } |
723 | |
8e07c86e |
724 | sub check_cpp { |
725 | my @cpp = grep(/^\#\s*(?:if|e\w+)/, @line); |
726 | if (@cpp) { |
727 | my ($cpp, $cpplevel); |
728 | for $cpp (@cpp) { |
729 | if ($cpp =~ /^\#\s*if/) { |
730 | $cpplevel++; |
731 | } elsif (!$cpplevel) { |
732 | Warn("Warning: #else/elif/endif without #if in this function"); |
4230ab3f |
733 | print STDERR " (precede it with a blank line if the matching #if is outside the function)\n" |
734 | if $XSStack[-1]{type} eq 'if'; |
8e07c86e |
735 | return; |
736 | } elsif ($cpp =~ /^\#\s*endif/) { |
737 | $cpplevel--; |
738 | } |
739 | } |
740 | Warn("Warning: #if without #endif in this function") if $cpplevel; |
741 | } |
742 | } |
743 | |
744 | |
8990e307 |
745 | sub Q { |
e50aee73 |
746 | my($text) = @_; |
4633a7c4 |
747 | $text =~ s/^#//gm; |
2304df62 |
748 | $text =~ s/\[\[/{/g; |
749 | $text =~ s/\]\]/}/g; |
8990e307 |
750 | $text; |
93a17b20 |
751 | } |
752 | |
c07a80fd |
753 | open($FH, $filename) or die "cannot open $filename: $!\n"; |
c2960299 |
754 | |
f06db76b |
755 | # Identify the version of xsubpp used |
f06db76b |
756 | print <<EOM ; |
e50aee73 |
757 | /* |
758 | * This file was generated automatically by xsubpp version $XSUBPP_version from the |
93d3b392 |
759 | * contents of $filename. Do not edit this file, edit $filename instead. |
e50aee73 |
760 | * |
761 | * ANY CHANGES MADE HERE WILL BE LOST! |
f06db76b |
762 | * |
763 | */ |
e50aee73 |
764 | |
f06db76b |
765 | EOM |
6f1abe2b |
766 | |
767 | |
768 | print("#line 1 \"$filename\"\n") |
769 | if $WantLineNumbers; |
f06db76b |
770 | |
c07a80fd |
771 | while (<$FH>) { |
e50aee73 |
772 | last if ($Module, $Package, $Prefix) = |
773 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/; |
01f988be |
774 | |
775 | if ($OBJ) { |
b85ee828 |
776 | s/#if(?:def\s|\s+defined)\s*(\(__cplusplus\)|__cplusplus)/#if defined(__cplusplus) && !defined(PERL_OBJECT)/; |
01f988be |
777 | } |
a0d0e21e |
778 | print $_; |
93a17b20 |
779 | } |
e50aee73 |
780 | &Exit unless defined $_; |
781 | |
cfc02341 |
782 | print "$xsubpp::counter::SECTION_END_MARKER\n" if $WantLineNumbers; |
783 | |
8fc38fda |
784 | $lastline = $_; |
785 | $lastline_no = $.; |
93a17b20 |
786 | |
c07a80fd |
787 | # Read next xsub into @line from ($lastline, <$FH>). |
2304df62 |
788 | sub fetch_para { |
789 | # parse paragraph |
4230ab3f |
790 | death ("Error: Unterminated `#if/#ifdef/#ifndef'") |
791 | if !defined $lastline && $XSStack[-1]{type} eq 'if'; |
2304df62 |
792 | @line = (); |
c2960299 |
793 | @line_no = () ; |
4230ab3f |
794 | return PopFile() if !defined $lastline; |
e50aee73 |
795 | |
796 | if ($lastline =~ |
797 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/) { |
798 | $Module = $1; |
8e07c86e |
799 | $Package = defined($2) ? $2 : ''; # keep -w happy |
800 | $Prefix = defined($3) ? $3 : ''; # keep -w happy |
ff68c719 |
801 | $Prefix = quotemeta $Prefix ; |
e50aee73 |
802 | ($Module_cname = $Module) =~ s/\W/_/g; |
8e07c86e |
803 | ($Packid = $Package) =~ tr/:/_/; |
e50aee73 |
804 | $Packprefix = $Package; |
8e07c86e |
805 | $Packprefix .= "::" if $Packprefix ne ""; |
2304df62 |
806 | $lastline = ""; |
e50aee73 |
807 | } |
808 | |
809 | for(;;) { |
810 | if ($lastline !~ /^\s*#/ || |
4230ab3f |
811 | # CPP directives: |
812 | # ANSI: if ifdef ifndef elif else endif define undef |
813 | # line error pragma |
814 | # gcc: warning include_next |
815 | # obj-c: import |
816 | # others: ident (gcc notes that some cpps have this one) |
817 | $lastline =~ /^#[ \t]*(?:(?:if|ifn?def|elif|else|endif|define|undef|pragma|error|warning|line\s+\d+|ident)\b|(?:include(?:_next)?|import)\s*["<].*[>"])/) { |
e50aee73 |
818 | last if $lastline =~ /^\S/ && @line && $line[-1] eq ""; |
819 | push(@line, $lastline); |
820 | push(@line_no, $lastline_no) ; |
93a17b20 |
821 | } |
e50aee73 |
822 | |
823 | # Read next line and continuation lines |
c07a80fd |
824 | last unless defined($lastline = <$FH>); |
e50aee73 |
825 | $lastline_no = $.; |
826 | my $tmp_line; |
827 | $lastline .= $tmp_line |
c07a80fd |
828 | while ($lastline =~ /\\$/ && defined($tmp_line = <$FH>)); |
e50aee73 |
829 | |
8e07c86e |
830 | chomp $lastline; |
e50aee73 |
831 | $lastline =~ s/^\s+$//; |
2304df62 |
832 | } |
e50aee73 |
833 | pop(@line), pop(@line_no) while @line && $line[-1] eq ""; |
e50aee73 |
834 | 1; |
2304df62 |
835 | } |
93a17b20 |
836 | |
c2960299 |
837 | PARAGRAPH: |
8e07c86e |
838 | while (fetch_para()) { |
e50aee73 |
839 | # Print initial preprocessor statements and blank lines |
4230ab3f |
840 | while (@line && $line[0] !~ /^[^\#]/) { |
841 | my $line = shift(@line); |
842 | print $line, "\n"; |
843 | next unless $line =~ /^\#\s*((if)(?:n?def)?|elsif|else|endif)\b/; |
844 | my $statement = $+; |
845 | if ($statement eq 'if') { |
846 | $XSS_work_idx = @XSStack; |
847 | push(@XSStack, {type => 'if'}); |
848 | } else { |
849 | death ("Error: `$statement' with no matching `if'") |
850 | if $XSStack[-1]{type} ne 'if'; |
851 | if ($XSStack[-1]{varname}) { |
852 | push(@InitFileCode, "#endif\n"); |
853 | push(@BootCode, "#endif"); |
854 | } |
855 | |
856 | my(@fns) = keys %{$XSStack[-1]{functions}}; |
857 | if ($statement ne 'endif') { |
858 | # Hide the functions defined in other #if branches, and reset. |
859 | @{$XSStack[-1]{other_functions}}{@fns} = (1) x @fns; |
860 | @{$XSStack[-1]}{qw(varname functions)} = ('', {}); |
861 | } else { |
862 | my($tmp) = pop(@XSStack); |
863 | 0 while (--$XSS_work_idx |
864 | && $XSStack[$XSS_work_idx]{type} ne 'if'); |
865 | # Keep all new defined functions |
866 | push(@fns, keys %{$tmp->{other_functions}}); |
867 | @{$XSStack[$XSS_work_idx]{functions}}{@fns} = (1) x @fns; |
868 | } |
869 | } |
870 | } |
e50aee73 |
871 | |
872 | next PARAGRAPH unless @line; |
873 | |
4230ab3f |
874 | if ($XSS_work_idx && !$XSStack[$XSS_work_idx]{varname}) { |
875 | # We are inside an #if, but have not yet #defined its xsubpp variable. |
876 | print "#define $cpp_next_tmp 1\n\n"; |
877 | push(@InitFileCode, "#if $cpp_next_tmp\n"); |
878 | push(@BootCode, "#if $cpp_next_tmp"); |
879 | $XSStack[$XSS_work_idx]{varname} = $cpp_next_tmp++; |
880 | } |
881 | |
55497cff |
882 | death ("Code is not inside a function" |
883 | ." (maybe last function was ended by a blank line " |
884 | ." followed by a a statement on column one?)") |
e50aee73 |
885 | if $line[0] =~ /^\s/; |
886 | |
2304df62 |
887 | # initialize info arrays |
888 | undef(%args_match); |
889 | undef(%var_types); |
890 | undef(%var_addr); |
891 | undef(%defaults); |
892 | undef($class); |
893 | undef($static); |
894 | undef($elipsis); |
f06db76b |
895 | undef($wantRETVAL) ; |
896 | undef(%arg_list) ; |
382b8d97 |
897 | undef(@proto_arg) ; |
c07a80fd |
898 | undef($proto_in_this_xsub) ; |
db3b9414 |
899 | undef($scope_in_this_xsub) ; |
cfc02341 |
900 | undef($interface); |
901 | $interface_macro = 'XSINTERFACE_FUNC' ; |
902 | $interface_macro_set = 'XSINTERFACE_FUNC_SET' ; |
382b8d97 |
903 | $ProtoThisXSUB = $WantPrototypes ; |
db3b9414 |
904 | $ScopeThisXSUB = 0; |
2304df62 |
905 | |
8e07c86e |
906 | $_ = shift(@line); |
8fc38fda |
907 | while ($kwd = check_keyword("REQUIRE|PROTOTYPES|VERSIONCHECK|INCLUDE")) { |
908 | &{"${kwd}_handler"}() ; |
8e07c86e |
909 | next PARAGRAPH unless @line ; |
910 | $_ = shift(@line); |
911 | } |
c2960299 |
912 | |
8e07c86e |
913 | if (check_keyword("BOOT")) { |
914 | &check_cpp; |
6f1abe2b |
915 | push (@BootCode, "#line $line_no[@line_no - @line] \"$filename\"") |
916 | if $WantLineNumbers && $line[0] !~ /^\s*#\s*line\b/; |
917 | push (@BootCode, @line, "") ; |
c2960299 |
918 | next PARAGRAPH ; |
a0d0e21e |
919 | } |
c2960299 |
920 | |
8e07c86e |
921 | |
922 | # extract return type, function name and arguments |
cfc02341 |
923 | ($ret_type) = TidyType($_); |
8e07c86e |
924 | |
c2960299 |
925 | # a function definition needs at least 2 lines |
926 | blurt ("Error: Function definition too short '$ret_type'"), next PARAGRAPH |
927 | unless @line ; |
928 | |
8e07c86e |
929 | $static = 1 if $ret_type =~ s/^static\s+//; |
930 | |
2304df62 |
931 | $func_header = shift(@line); |
c2960299 |
932 | blurt ("Error: Cannot parse function definition from '$func_header'"), next PARAGRAPH |
f480b56a |
933 | unless $func_header =~ /^(?:([\w:]*)::)?(\w+)\s*\(\s*(.*?)\s*\)\s*(const)?\s*$/s; |
c2960299 |
934 | |
8e07c86e |
935 | ($class, $func_name, $orig_args) = ($1, $2, $3) ; |
f480b56a |
936 | $class = "$4 $class" if $4; |
2304df62 |
937 | ($pname = $func_name) =~ s/^($Prefix)?/$Packprefix/; |
ff68c719 |
938 | ($clean_func_name = $func_name) =~ s/^$Prefix//; |
939 | $Full_func_name = "${Packid}_$clean_func_name"; |
ff0cee69 |
940 | if ($Is_VMS) { $Full_func_name = $SymSet->addsym($Full_func_name); } |
c2960299 |
941 | |
942 | # Check for duplicate function definition |
4230ab3f |
943 | for $tmp (@XSStack) { |
944 | next unless defined $tmp->{functions}{$Full_func_name}; |
ff68c719 |
945 | Warn("Warning: duplicate function definition '$clean_func_name' detected"); |
4230ab3f |
946 | last; |
8e07c86e |
947 | } |
4230ab3f |
948 | $XSStack[$XSS_work_idx]{functions}{$Full_func_name} ++ ; |
cfc02341 |
949 | %XsubAliases = %XsubAliasValues = %Interfaces = (); |
ef50df4b |
950 | $DoSetMagic = 1; |
c2960299 |
951 | |
2304df62 |
952 | @args = split(/\s*,\s*/, $orig_args); |
a0d0e21e |
953 | if (defined($class)) { |
683d4eee |
954 | my $arg0 = ((defined($static) or $func_name eq 'new') |
955 | ? "CLASS" : "THIS"); |
8e07c86e |
956 | unshift(@args, $arg0); |
957 | ($orig_args = "$arg0, $orig_args") =~ s/^$arg0, $/$arg0/; |
2304df62 |
958 | } |
959 | $orig_args =~ s/"/\\"/g; |
960 | $min_args = $num_args = @args; |
961 | foreach $i (0..$num_args-1) { |
962 | if ($args[$i] =~ s/\.\.\.//) { |
963 | $elipsis = 1; |
964 | $min_args--; |
c2960299 |
965 | if ($args[$i] eq '' && $i == $num_args - 1) { |
2304df62 |
966 | pop(@args); |
967 | last; |
968 | } |
969 | } |
8e07c86e |
970 | if ($args[$i] =~ /^([^=]*[^\s=])\s*=\s*(.*)/s) { |
2304df62 |
971 | $min_args--; |
972 | $args[$i] = $1; |
973 | $defaults{$args[$i]} = $2; |
974 | $defaults{$args[$i]} =~ s/"/\\"/g; |
975 | } |
93d3b392 |
976 | $proto_arg[$i+1] = "\$" ; |
2304df62 |
977 | } |
a0d0e21e |
978 | if (defined($class)) { |
2304df62 |
979 | $func_args = join(", ", @args[1..$#args]); |
980 | } else { |
981 | $func_args = join(", ", @args); |
982 | } |
983 | @args_match{@args} = 1..@args; |
984 | |
8e07c86e |
985 | $PPCODE = grep(/^\s*PPCODE\s*:/, @line); |
93d3b392 |
986 | $CODE = grep(/^\s*CODE\s*:/, @line); |
6c5fb52b |
987 | # Detect CODE: blocks which use ST(n)= or XST_m*(n,v) |
988 | # to set explicit return values. |
989 | $EXPLICIT_RETURN = ($CODE && |
990 | ("@line" =~ /(\bST\s*\([^;]*=) | (\bXST_m\w+\s*\()/x )); |
8e07c86e |
991 | $ALIAS = grep(/^\s*ALIAS\s*:/, @line); |
cfc02341 |
992 | $INTERFACE = grep(/^\s*INTERFACE\s*:/, @line); |
8e07c86e |
993 | |
2304df62 |
994 | # print function header |
a0d0e21e |
995 | print Q<<"EOF"; |
ff68c719 |
996 | #XS(XS_${Full_func_name}) |
2304df62 |
997 | #[[ |
a0d0e21e |
998 | # dXSARGS; |
93a17b20 |
999 | EOF |
8e07c86e |
1000 | print Q<<"EOF" if $ALIAS ; |
1001 | # dXSI32; |
1002 | EOF |
cfc02341 |
1003 | print Q<<"EOF" if $INTERFACE ; |
1004 | # dXSFUNCTION($ret_type); |
1005 | EOF |
2304df62 |
1006 | if ($elipsis) { |
8e07c86e |
1007 | $cond = ($min_args ? qq(items < $min_args) : 0); |
2304df62 |
1008 | } |
1009 | elsif ($min_args == $num_args) { |
1010 | $cond = qq(items != $min_args); |
1011 | } |
1012 | else { |
1013 | $cond = qq(items < $min_args || items > $num_args); |
1014 | } |
8990e307 |
1015 | |
2304df62 |
1016 | print Q<<"EOF" if $except; |
1017 | # char errbuf[1024]; |
1018 | # *errbuf = '\0'; |
1019 | EOF |
1020 | |
8e07c86e |
1021 | if ($ALIAS) |
1022 | { print Q<<"EOF" if $cond } |
1023 | # if ($cond) |
cea2e8a9 |
1024 | # Perl_croak(aTHX_ "Usage: %s($orig_args)", GvNAME(CvGV(cv))); |
8e07c86e |
1025 | EOF |
1026 | else |
1027 | { print Q<<"EOF" if $cond } |
1028 | # if ($cond) |
cea2e8a9 |
1029 | # Perl_croak(aTHX_ "Usage: $pname($orig_args)"); |
93a17b20 |
1030 | EOF |
1031 | |
a0d0e21e |
1032 | print Q<<"EOF" if $PPCODE; |
1033 | # SP -= items; |
1034 | EOF |
1035 | |
2304df62 |
1036 | # Now do a block of some sort. |
93a17b20 |
1037 | |
2304df62 |
1038 | $condnum = 0; |
8e07c86e |
1039 | $cond = ''; # last CASE: condidional |
1040 | push(@line, "$END:"); |
1041 | push(@line_no, $line_no[-1]); |
1042 | $_ = ''; |
1043 | &check_cpp; |
2304df62 |
1044 | while (@line) { |
8e07c86e |
1045 | &CASE_handler if check_keyword("CASE"); |
1046 | print Q<<"EOF"; |
1047 | # $except [[ |
93a17b20 |
1048 | EOF |
1049 | |
1050 | # do initialization of input variables |
1051 | $thisdone = 0; |
1052 | $retvaldone = 0; |
463ee0b2 |
1053 | $deferred = ""; |
c2960299 |
1054 | %arg_list = () ; |
1055 | $gotRETVAL = 0; |
f06db76b |
1056 | |
8fc38fda |
1057 | INPUT_handler() ; |
cfc02341 |
1058 | process_keyword("INPUT|PREINIT|INTERFACE_MACRO|C_ARGS|ALIAS|PROTOTYPE|SCOPE") ; |
8fc38fda |
1059 | |
db3b9414 |
1060 | print Q<<"EOF" if $ScopeThisXSUB; |
1061 | # ENTER; |
1062 | # [[ |
1063 | EOF |
1064 | |
a0d0e21e |
1065 | if (!$thisdone && defined($class)) { |
683d4eee |
1066 | if (defined($static) or $func_name eq 'new') { |
a0d0e21e |
1067 | print "\tchar *"; |
1068 | $var_types{"CLASS"} = "char *"; |
1069 | &generate_init("char *", 1, "CLASS"); |
1070 | } |
1071 | else { |
93a17b20 |
1072 | print "\t$class *"; |
1073 | $var_types{"THIS"} = "$class *"; |
1074 | &generate_init("$class *", 1, "THIS"); |
a0d0e21e |
1075 | } |
93a17b20 |
1076 | } |
1077 | |
1078 | # do code |
1079 | if (/^\s*NOT_IMPLEMENTED_YET/) { |
cea2e8a9 |
1080 | print "\n\tPerl_croak(aTHX_ \"$pname: not implemented yet\");\n"; |
4633a7c4 |
1081 | $_ = '' ; |
93a17b20 |
1082 | } else { |
1083 | if ($ret_type ne "void") { |
1084 | print "\t" . &map_type($ret_type) . "\tRETVAL;\n" |
1085 | if !$retvaldone; |
1086 | $args_match{"RETVAL"} = 0; |
1087 | $var_types{"RETVAL"} = $ret_type; |
1088 | } |
db3b9414 |
1089 | |
8e07c86e |
1090 | print $deferred; |
db3b9414 |
1091 | |
cfc02341 |
1092 | process_keyword("INIT|ALIAS|PROTOTYPE|INTERFACE_MACRO|INTERFACE|C_ARGS") ; |
8e07c86e |
1093 | |
1094 | if (check_keyword("PPCODE")) { |
8fc38fda |
1095 | print_section(); |
8e07c86e |
1096 | death ("PPCODE must be last thing") if @line; |
db3b9414 |
1097 | print "\tLEAVE;\n" if $ScopeThisXSUB; |
a0d0e21e |
1098 | print "\tPUTBACK;\n\treturn;\n"; |
8e07c86e |
1099 | } elsif (check_keyword("CODE")) { |
8fc38fda |
1100 | print_section() ; |
1101 | } elsif (defined($class) and $func_name eq "DESTROY") { |
a0d0e21e |
1102 | print "\n\t"; |
8e07c86e |
1103 | print "delete THIS;\n"; |
93a17b20 |
1104 | } else { |
1105 | print "\n\t"; |
1106 | if ($ret_type ne "void") { |
463ee0b2 |
1107 | print "RETVAL = "; |
e50aee73 |
1108 | $wantRETVAL = 1; |
93a17b20 |
1109 | } |
1110 | if (defined($static)) { |
683d4eee |
1111 | if ($func_name eq 'new') { |
8fc38fda |
1112 | $func_name = "$class"; |
8e07c86e |
1113 | } else { |
1114 | print "${class}::"; |
a0d0e21e |
1115 | } |
93a17b20 |
1116 | } elsif (defined($class)) { |
683d4eee |
1117 | if ($func_name eq 'new') { |
8fc38fda |
1118 | $func_name .= " $class"; |
1119 | } else { |
93a17b20 |
1120 | print "THIS->"; |
8fc38fda |
1121 | } |
93a17b20 |
1122 | } |
e50aee73 |
1123 | $func_name =~ s/^($spat)// |
1124 | if defined($spat); |
cfc02341 |
1125 | $func_name = 'XSFUNCTION' if $interface; |
93a17b20 |
1126 | print "$func_name($func_args);\n"; |
93a17b20 |
1127 | } |
1128 | } |
1129 | |
1130 | # do output variables |
8e07c86e |
1131 | $gotRETVAL = 0; |
1132 | undef $RETVAL_code ; |
1133 | undef %outargs ; |
8fc38fda |
1134 | process_keyword("OUTPUT|ALIAS|PROTOTYPE"); |
f06db76b |
1135 | |
1136 | # all OUTPUT done, so now push the return value on the stack |
8e07c86e |
1137 | if ($gotRETVAL && $RETVAL_code) { |
1138 | print "\t$RETVAL_code\n"; |
1139 | } elsif ($gotRETVAL || $wantRETVAL) { |
ef50df4b |
1140 | # RETVAL almost never needs SvSETMAGIC() |
1141 | &generate_output($ret_type, 0, 'RETVAL', 0); |
8e07c86e |
1142 | } |
f06db76b |
1143 | |
93a17b20 |
1144 | # do cleanup |
8fc38fda |
1145 | process_keyword("CLEANUP|ALIAS|PROTOTYPE") ; |
8e07c86e |
1146 | |
db3b9414 |
1147 | print Q<<"EOF" if $ScopeThisXSUB; |
1148 | # ]] |
1149 | EOF |
1150 | print Q<<"EOF" if $ScopeThisXSUB and not $PPCODE; |
1151 | # LEAVE; |
1152 | EOF |
1153 | |
93a17b20 |
1154 | # print function trailer |
8e07c86e |
1155 | print Q<<EOF; |
2304df62 |
1156 | # ]] |
8e07c86e |
1157 | EOF |
1158 | print Q<<EOF if $except; |
8990e307 |
1159 | # BEGHANDLERS |
1160 | # CATCHALL |
1161 | # sprintf(errbuf, "%s: %s\\tpropagated", Xname, Xreason); |
1162 | # ENDHANDLERS |
93a17b20 |
1163 | EOF |
8e07c86e |
1164 | if (check_keyword("CASE")) { |
1165 | blurt ("Error: No `CASE:' at top of function") |
1166 | unless $condnum; |
1167 | $_ = "CASE: $_"; # Restore CASE: label |
1168 | next; |
8990e307 |
1169 | } |
8e07c86e |
1170 | last if $_ eq "$END:"; |
1171 | death(/^$BLOCK_re/o ? "Misplaced `$1:'" : "Junk at end of function"); |
2304df62 |
1172 | } |
a0d0e21e |
1173 | |
2304df62 |
1174 | print Q<<EOF if $except; |
1175 | # if (errbuf[0]) |
cea2e8a9 |
1176 | # Perl_croak(aTHX_ errbuf); |
2304df62 |
1177 | EOF |
a0d0e21e |
1178 | |
7c5b83de |
1179 | if ($ret_type ne "void" or $EXPLICIT_RETURN) { |
93d3b392 |
1180 | print Q<<EOF unless $PPCODE; |
a0d0e21e |
1181 | # XSRETURN(1); |
1182 | EOF |
93d3b392 |
1183 | } else { |
1184 | print Q<<EOF unless $PPCODE; |
1185 | # XSRETURN_EMPTY; |
1186 | EOF |
1187 | } |
a0d0e21e |
1188 | |
2304df62 |
1189 | print Q<<EOF; |
2304df62 |
1190 | #]] |
8990e307 |
1191 | # |
93a17b20 |
1192 | EOF |
382b8d97 |
1193 | |
4230ab3f |
1194 | my $newXS = "newXS" ; |
1195 | my $proto = "" ; |
1196 | |
382b8d97 |
1197 | # Build the prototype string for the xsub |
1198 | if ($ProtoThisXSUB) { |
4230ab3f |
1199 | $newXS = "newXSproto"; |
1200 | |
6f1abe2b |
1201 | if ($ProtoThisXSUB eq 2) { |
4230ab3f |
1202 | # User has specified empty prototype |
1203 | $proto = ', ""' ; |
1204 | } |
6f1abe2b |
1205 | elsif ($ProtoThisXSUB ne 1) { |
7d41bd0a |
1206 | # User has specified a prototype |
4230ab3f |
1207 | $proto = ', "' . $ProtoThisXSUB . '"'; |
382b8d97 |
1208 | } |
1209 | else { |
1210 | my $s = ';'; |
1211 | if ($min_args < $num_args) { |
1212 | $s = ''; |
1213 | $proto_arg[$min_args] .= ";" ; |
1214 | } |
4230ab3f |
1215 | push @proto_arg, "$s\@" |
382b8d97 |
1216 | if $elipsis ; |
1217 | |
4230ab3f |
1218 | $proto = ', "' . join ("", @proto_arg) . '"'; |
382b8d97 |
1219 | } |
1220 | } |
1221 | |
4230ab3f |
1222 | if (%XsubAliases) { |
1223 | $XsubAliases{$pname} = 0 |
1224 | unless defined $XsubAliases{$pname} ; |
1225 | while ( ($name, $value) = each %XsubAliases) { |
1226 | push(@InitFileCode, Q<<"EOF"); |
1227 | # cv = newXS(\"$name\", XS_$Full_func_name, file); |
1228 | # XSANY.any_i32 = $value ; |
1229 | EOF |
1230 | push(@InitFileCode, Q<<"EOF") if $proto; |
1231 | # sv_setpv((SV*)cv$proto) ; |
1232 | EOF |
1233 | } |
cfc02341 |
1234 | } |
1235 | elsif ($interface) { |
1236 | while ( ($name, $value) = each %Interfaces) { |
1237 | $name = "$Package\::$name" unless $name =~ /::/; |
1238 | push(@InitFileCode, Q<<"EOF"); |
1239 | # cv = newXS(\"$name\", XS_$Full_func_name, file); |
1240 | # $interface_macro_set(cv,$value) ; |
1241 | EOF |
1242 | push(@InitFileCode, Q<<"EOF") if $proto; |
1243 | # sv_setpv((SV*)cv$proto) ; |
1244 | EOF |
1245 | } |
4230ab3f |
1246 | } |
1247 | else { |
1248 | push(@InitFileCode, |
1249 | " ${newXS}(\"$pname\", XS_$Full_func_name, file$proto);\n"); |
1250 | } |
93a17b20 |
1251 | } |
1252 | |
1253 | # print initialization routine |
7ee8c957 |
1254 | |
e3b8966e |
1255 | print Q<<"EOF"; |
e3b8966e |
1256 | ##ifdef __cplusplus |
1257 | #extern "C" |
1258 | ##endif |
7ee8c957 |
1259 | EOF |
1260 | |
8990e307 |
1261 | print Q<<"EOF"; |
a0d0e21e |
1262 | #XS(boot_$Module_cname) |
7ee8c957 |
1263 | EOF |
1264 | |
7ee8c957 |
1265 | print Q<<"EOF"; |
2304df62 |
1266 | #[[ |
a0d0e21e |
1267 | # dXSARGS; |
8990e307 |
1268 | # char* file = __FILE__; |
1269 | # |
93a17b20 |
1270 | EOF |
1271 | |
8fc38fda |
1272 | print Q<<"EOF" if $WantVersionChk ; |
1273 | # XS_VERSION_BOOTCHECK ; |
1274 | # |
1275 | EOF |
1276 | |
cfc02341 |
1277 | print Q<<"EOF" if defined $XsubAliases or defined $Interfaces ; |
8e07c86e |
1278 | # { |
1279 | # CV * cv ; |
1280 | # |
1281 | EOF |
1282 | |
4230ab3f |
1283 | print @InitFileCode; |
a0d0e21e |
1284 | |
cfc02341 |
1285 | print Q<<"EOF" if defined $XsubAliases or defined $Interfaces ; |
8e07c86e |
1286 | # } |
1287 | EOF |
1288 | |
a0d0e21e |
1289 | if (@BootCode) |
1290 | { |
6f1abe2b |
1291 | print "\n /* Initialisation Section */\n\n" ; |
1292 | @line = @BootCode; |
1293 | print_section(); |
8e07c86e |
1294 | print "\n /* End of Initialisation Section */\n\n" ; |
93a17b20 |
1295 | } |
a0d0e21e |
1296 | |
e50aee73 |
1297 | print Q<<"EOF";; |
3280af22 |
1298 | # XSRETURN_YES; |
e50aee73 |
1299 | #]] |
e3b8966e |
1300 | # |
1301 | EOF |
1302 | |
8fc38fda |
1303 | warn("Please specify prototyping behavior for $filename (see perlxs manual)\n") |
1304 | unless $ProtoUsed ; |
e50aee73 |
1305 | &Exit; |
1306 | |
93a17b20 |
1307 | sub output_init { |
7ad6fb0b |
1308 | local($type, $num, $var, $init) = @_; |
a0d0e21e |
1309 | local($arg) = "ST(" . ($num - 1) . ")"; |
93a17b20 |
1310 | |
7ad6fb0b |
1311 | if( $init =~ /^=/ ) { |
1312 | eval qq/print "\\t$var $init\\n"/; |
1313 | warn $@ if $@; |
1314 | } else { |
1315 | if( $init =~ s/^\+// && $num ) { |
1316 | &generate_init($type, $num, $var); |
1317 | } else { |
1318 | eval qq/print "\\t$var;\\n"/; |
1319 | warn $@ if $@; |
1320 | $init =~ s/^;//; |
1321 | } |
1322 | $deferred .= eval qq/"\\n\\t$init\\n"/; |
1323 | warn $@ if $@; |
1324 | } |
93a17b20 |
1325 | } |
1326 | |
c2960299 |
1327 | sub Warn |
1328 | { |
1329 | # work out the line number |
1330 | my $line_no = $line_no[@line_no - @line -1] ; |
1331 | |
1332 | print STDERR "@_ in $filename, line $line_no\n" ; |
1333 | } |
1334 | |
1335 | sub blurt |
1336 | { |
1337 | Warn @_ ; |
1338 | $errors ++ |
1339 | } |
1340 | |
1341 | sub death |
1342 | { |
1343 | Warn @_ ; |
1344 | exit 1 ; |
1345 | } |
8990e307 |
1346 | |
93a17b20 |
1347 | sub generate_init { |
2304df62 |
1348 | local($type, $num, $var) = @_; |
a0d0e21e |
1349 | local($arg) = "ST(" . ($num - 1) . ")"; |
2304df62 |
1350 | local($argoff) = $num - 1; |
1351 | local($ntype); |
1352 | local($tk); |
93a17b20 |
1353 | |
f06db76b |
1354 | $type = TidyType($type) ; |
c2960299 |
1355 | blurt("Error: '$type' not in typemap"), return |
1356 | unless defined($type_kind{$type}); |
1357 | |
2304df62 |
1358 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
8e07c86e |
1359 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 |
1360 | $tk = $type_kind{$type}; |
1361 | $tk =~ s/OBJ$/REF/ if $func_name =~ /DESTROY$/; |
8e07c86e |
1362 | $type =~ tr/:/_/; |
c2960299 |
1363 | blurt("Error: No INPUT definition for type '$type' found"), return |
1364 | unless defined $input_expr{$tk} ; |
2304df62 |
1365 | $expr = $input_expr{$tk}; |
1366 | if ($expr =~ /DO_ARRAY_ELEM/) { |
c2960299 |
1367 | blurt("Error: '$subtype' not in typemap"), return |
1368 | unless defined($type_kind{$subtype}); |
1369 | blurt("Error: No INPUT definition for type '$subtype' found"), return |
1370 | unless defined $input_expr{$type_kind{$subtype}} ; |
2304df62 |
1371 | $subexpr = $input_expr{$type_kind{$subtype}}; |
1372 | $subexpr =~ s/ntype/subtype/g; |
1373 | $subexpr =~ s/\$arg/ST(ix_$var)/g; |
1374 | $subexpr =~ s/\n\t/\n\t\t/g; |
93d3b392 |
1375 | $subexpr =~ s/is not of (.*\")/[arg %d] is not of $1, ix_$var + 1/g; |
a0d0e21e |
1376 | $subexpr =~ s/\$var/${var}[ix_$var - $argoff]/; |
2304df62 |
1377 | $expr =~ s/DO_ARRAY_ELEM/$subexpr/; |
1378 | } |
db3b9414 |
1379 | if ($expr =~ m#/\*.*scope.*\*/#i) { # "scope" in C comments |
1380 | $ScopeThisXSUB = 1; |
1381 | } |
2304df62 |
1382 | if (defined($defaults{$var})) { |
1383 | $expr =~ s/(\t+)/$1 /g; |
1384 | $expr =~ s/ /\t/g; |
1385 | eval qq/print "\\t$var;\\n"/; |
7ad6fb0b |
1386 | warn $@ if $@; |
2304df62 |
1387 | $deferred .= eval qq/"\\n\\tif (items < $num)\\n\\t $var = $defaults{$var};\\n\\telse {\\n$expr;\\n\\t}\\n"/; |
7ad6fb0b |
1388 | warn $@ if $@; |
db3b9414 |
1389 | } elsif ($ScopeThisXSUB or $expr !~ /^\t\$var =/) { |
2304df62 |
1390 | eval qq/print "\\t$var;\\n"/; |
7ad6fb0b |
1391 | warn $@ if $@; |
2304df62 |
1392 | $deferred .= eval qq/"\\n$expr;\\n"/; |
7ad6fb0b |
1393 | warn $@ if $@; |
2304df62 |
1394 | } else { |
1395 | eval qq/print "$expr;\\n"/; |
7ad6fb0b |
1396 | warn $@ if $@; |
2304df62 |
1397 | } |
93a17b20 |
1398 | } |
1399 | |
1400 | sub generate_output { |
ef50df4b |
1401 | local($type, $num, $var, $do_setmagic) = @_; |
a0d0e21e |
1402 | local($arg) = "ST(" . ($num - ($num != 0)) . ")"; |
2304df62 |
1403 | local($argoff) = $num - 1; |
1404 | local($ntype); |
93a17b20 |
1405 | |
f06db76b |
1406 | $type = TidyType($type) ; |
2304df62 |
1407 | if ($type =~ /^array\(([^,]*),(.*)\)/) { |
1408 | print "\tsv_setpvn($arg, (char *)$var, $2 * sizeof($1)), XFree((char *)$var);\n"; |
ef50df4b |
1409 | print "\tSvSETMAGIC($arg);\n" if $do_setmagic; |
2304df62 |
1410 | } else { |
f06db76b |
1411 | blurt("Error: '$type' not in typemap"), return |
2304df62 |
1412 | unless defined($type_kind{$type}); |
c2960299 |
1413 | blurt("Error: No OUTPUT definition for type '$type' found"), return |
1414 | unless defined $output_expr{$type_kind{$type}} ; |
2304df62 |
1415 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
1416 | $ntype =~ s/\(\)//g; |
8e07c86e |
1417 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 |
1418 | $expr = $output_expr{$type_kind{$type}}; |
1419 | if ($expr =~ /DO_ARRAY_ELEM/) { |
c2960299 |
1420 | blurt("Error: '$subtype' not in typemap"), return |
1421 | unless defined($type_kind{$subtype}); |
1422 | blurt("Error: No OUTPUT definition for type '$subtype' found"), return |
1423 | unless defined $output_expr{$type_kind{$subtype}} ; |
2304df62 |
1424 | $subexpr = $output_expr{$type_kind{$subtype}}; |
1425 | $subexpr =~ s/ntype/subtype/g; |
1426 | $subexpr =~ s/\$arg/ST(ix_$var)/g; |
1427 | $subexpr =~ s/\$var/${var}[ix_$var]/g; |
1428 | $subexpr =~ s/\n\t/\n\t\t/g; |
1429 | $expr =~ s/DO_ARRAY_ELEM\n/$subexpr/; |
a0d0e21e |
1430 | eval "print qq\a$expr\a"; |
7ad6fb0b |
1431 | warn $@ if $@; |
ef50df4b |
1432 | print "\t\tSvSETMAGIC(ST(ix_$var));\n" if $do_setmagic; |
2304df62 |
1433 | } |
a0d0e21e |
1434 | elsif ($var eq 'RETVAL') { |
a2baab1c |
1435 | if ($expr =~ /^\t\$arg = new/) { |
1436 | # We expect that $arg has refcnt 1, so we need to |
1437 | # mortalize it. |
a0d0e21e |
1438 | eval "print qq\a$expr\a"; |
7ad6fb0b |
1439 | warn $@ if $@; |
2304df62 |
1440 | print "\tsv_2mortal(ST(0));\n"; |
ef50df4b |
1441 | print "\tSvSETMAGIC(ST(0));\n" if $do_setmagic; |
93a17b20 |
1442 | } |
a2baab1c |
1443 | elsif ($expr =~ /^\s*\$arg\s*=/) { |
1444 | # We expect that $arg has refcnt >=1, so we need |
d689ffdd |
1445 | # to mortalize it! |
a2baab1c |
1446 | eval "print qq\a$expr\a"; |
7ad6fb0b |
1447 | warn $@ if $@; |
d689ffdd |
1448 | print "\tsv_2mortal(ST(0));\n"; |
ef50df4b |
1449 | print "\tSvSETMAGIC(ST(0));\n" if $do_setmagic; |
a2baab1c |
1450 | } |
2304df62 |
1451 | else { |
a2baab1c |
1452 | # Just hope that the entry would safely write it |
1453 | # over an already mortalized value. By |
1454 | # coincidence, something like $arg = &sv_undef |
1455 | # works too. |
8990e307 |
1456 | print "\tST(0) = sv_newmortal();\n"; |
a0d0e21e |
1457 | eval "print qq\a$expr\a"; |
7ad6fb0b |
1458 | warn $@ if $@; |
ef50df4b |
1459 | # new mortals don't have set magic |
463ee0b2 |
1460 | } |
2304df62 |
1461 | } |
a0d0e21e |
1462 | elsif ($arg =~ /^ST\(\d+\)$/) { |
1463 | eval "print qq\a$expr\a"; |
7ad6fb0b |
1464 | warn $@ if $@; |
ef50df4b |
1465 | print "\tSvSETMAGIC($arg);\n" if $do_setmagic; |
a0d0e21e |
1466 | } |
2304df62 |
1467 | } |
93a17b20 |
1468 | } |
1469 | |
1470 | sub map_type { |
e50aee73 |
1471 | my($type) = @_; |
93a17b20 |
1472 | |
8e07c86e |
1473 | $type =~ tr/:/_/; |
1474 | $type =~ s/^array\(([^,]*),(.*)\).*/$1 */s; |
1475 | $type; |
93a17b20 |
1476 | } |
8990e307 |
1477 | |
e50aee73 |
1478 | |
1479 | sub Exit { |
ff0cee69 |
1480 | # If this is VMS, the exit status has meaning to the shell, so we |
1481 | # use a predictable value (SS$_Normal or SS$_Abort) rather than an |
1482 | # arbitrary number. |
1483 | # exit ($Is_VMS ? ($errors ? 44 : 1) : $errors) ; |
1484 | exit ($errors ? 1 : 0); |
e50aee73 |
1485 | } |