Commit | Line | Data |
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2304df62 | 1 | #!./miniperl |
75f92628 AD |
2 | |
3 | =head1 NAME | |
4 | ||
5 | xsubpp - compiler to convert Perl XS code into C code | |
6 | ||
7 | =head1 SYNOPSIS | |
8 | ||
b26a54d0 | 9 | B<xsubpp> [B<-v>] [B<-C++>] [B<-except>] [B<-s pattern>] [B<-prototypes>] [B<-noversioncheck>] [B<-nolinenumbers>] [B<-nooptimize>] [B<-typemap typemap>] ... file.xs |
75f92628 AD |
10 | |
11 | =head1 DESCRIPTION | |
12 | ||
b26a54d0 GS |
13 | This compiler is typically run by the makefiles created by L<ExtUtils::MakeMaker>. |
14 | ||
75f92628 AD |
15 | I<xsubpp> will compile XS code into C code by embedding the constructs |
16 | necessary to let C functions manipulate Perl values and creates the glue | |
17 | necessary to let Perl access those functions. The compiler uses typemaps to | |
18 | determine how to map C function parameters and variables to Perl values. | |
19 | ||
20 | The compiler will search for typemap files called I<typemap>. It will use | |
21 | the following search path to find default typemaps, with the rightmost | |
22 | typemap taking precedence. | |
23 | ||
24 | ../../../typemap:../../typemap:../typemap:typemap | |
25 | ||
26 | =head1 OPTIONS | |
27 | ||
b26a54d0 GS |
28 | Note that the C<XSOPT> MakeMaker option may be used to add these options to |
29 | any makefiles generated by MakeMaker. | |
30 | ||
75f92628 AD |
31 | =over 5 |
32 | ||
33 | =item B<-C++> | |
34 | ||
35 | Adds ``extern "C"'' to the C code. | |
36 | ||
75f92628 AD |
37 | =item B<-except> |
38 | ||
39 | Adds exception handling stubs to the C code. | |
40 | ||
41 | =item B<-typemap typemap> | |
42 | ||
43 | Indicates that a user-supplied typemap should take precedence over the | |
44 | default typemaps. This option may be used multiple times, with the last | |
45 | typemap having the highest precedence. | |
46 | ||
8e07c86e AD |
47 | =item B<-v> |
48 | ||
49 | Prints the I<xsubpp> version number to standard output, then exits. | |
50 | ||
8fc38fda | 51 | =item B<-prototypes> |
382b8d97 | 52 | |
8fc38fda | 53 | By default I<xsubpp> will not automatically generate prototype code for |
54 | all xsubs. This flag will enable prototypes. | |
55 | ||
56 | =item B<-noversioncheck> | |
57 | ||
58 | Disables the run time test that determines if the object file (derived | |
59 | from the C<.xs> file) and the C<.pm> files have the same version | |
60 | number. | |
382b8d97 | 61 | |
6f1abe2b JT |
62 | =item B<-nolinenumbers> |
63 | ||
64 | Prevents the inclusion of `#line' directives in the output. | |
65 | ||
b26a54d0 GS |
66 | =item B<-nooptimize> |
67 | ||
68 | Disables certain optimizations. The only optimization that is currently | |
69 | affected is the use of I<target>s by the output C code (see L<perlguts>). | |
70 | This may significantly slow down the generated code, but this is the way | |
71 | B<xsubpp> of 5.005 and earlier operated. | |
72 | ||
11416672 GS |
73 | =item B<-noinout> |
74 | ||
75 | Disable recognition of C<IN>, C<OUT_LIST> and C<INOUT_LIST> declarations. | |
76 | ||
77 | =item B<-noargtypes> | |
78 | ||
79 | Disable recognition of ANSI-like descriptions of function signature. | |
80 | ||
c5be433b | 81 | =back |
75f92628 AD |
82 | |
83 | =head1 ENVIRONMENT | |
84 | ||
85 | No environment variables are used. | |
86 | ||
87 | =head1 AUTHOR | |
88 | ||
89 | Larry Wall | |
90 | ||
f06db76b AD |
91 | =head1 MODIFICATION HISTORY |
92 | ||
8e07c86e | 93 | See the file F<changes.pod>. |
e50aee73 | 94 | |
75f92628 AD |
95 | =head1 SEE ALSO |
96 | ||
55a00e51 | 97 | perl(1), perlxs(1), perlxstut(1) |
75f92628 AD |
98 | |
99 | =cut | |
93a17b20 | 100 | |
9bdfb4d4 | 101 | require 5.002; |
774d564b | 102 | use Cwd; |
4230ab3f | 103 | use vars '$cplusplus'; |
7ad6fb0b | 104 | use vars '%v'; |
382b8d97 | 105 | |
01f988be GS |
106 | use Config; |
107 | ||
aa689395 | 108 | sub Q ; |
109 | ||
774d564b | 110 | # Global Constants |
774d564b | 111 | |
7817ba4d | 112 | $XSUBPP_version = "1.9508"; |
aa689395 | 113 | |
114 | my ($Is_VMS, $SymSet); | |
115 | if ($^O eq 'VMS') { | |
116 | $Is_VMS = 1; | |
117 | # Establish set of global symbols with max length 28, since xsubpp | |
118 | # will later add the 'XS_' prefix. | |
119 | require ExtUtils::XSSymSet; | |
120 | $SymSet = new ExtUtils::XSSymSet 28; | |
121 | } | |
8fc38fda | 122 | |
c07a80fd | 123 | $FH = 'File0000' ; |
8fc38fda | 124 | |
11416672 | 125 | $usage = "Usage: xsubpp [-v] [-C++] [-except] [-prototypes] [-noversioncheck] [-nolinenumbers] [-nooptimize] [-noinout] [-noargtypes] [-s pattern] [-typemap typemap]... file.xs\n"; |
f06db76b | 126 | |
c2452817 | 127 | $proto_re = "[" . quotemeta('\$%&*@;[]') . "]" ; |
93a17b20 | 128 | |
8e07c86e | 129 | $except = ""; |
8fc38fda | 130 | $WantPrototypes = -1 ; |
131 | $WantVersionChk = 1 ; | |
132 | $ProtoUsed = 0 ; | |
6f1abe2b | 133 | $WantLineNumbers = 1 ; |
b26a54d0 | 134 | $WantOptimize = 1 ; |
54162f5c | 135 | $Overload = 0; |
11416672 GS |
136 | |
137 | my $process_inout = 1; | |
138 | my $process_argtypes = 1; | |
139 | ||
8e07c86e | 140 | SWITCH: while (@ARGV and $ARGV[0] =~ /^-./) { |
93a17b20 | 141 | $flag = shift @ARGV; |
e50aee73 | 142 | $flag =~ s/^-// ; |
ff68c719 | 143 | $spat = quotemeta shift, next SWITCH if $flag eq 's'; |
8990e307 | 144 | $cplusplus = 1, next SWITCH if $flag eq 'C++'; |
382b8d97 PM |
145 | $WantPrototypes = 0, next SWITCH if $flag eq 'noprototypes'; |
146 | $WantPrototypes = 1, next SWITCH if $flag eq 'prototypes'; | |
8fc38fda | 147 | $WantVersionChk = 0, next SWITCH if $flag eq 'noversioncheck'; |
148 | $WantVersionChk = 1, next SWITCH if $flag eq 'versioncheck'; | |
c5be433b | 149 | # XXX left this in for compat |
acfe0abc | 150 | next SWITCH if $flag eq 'object_capi'; |
8e07c86e | 151 | $except = " TRY", next SWITCH if $flag eq 'except'; |
8990e307 | 152 | push(@tm,shift), next SWITCH if $flag eq 'typemap'; |
6f1abe2b JT |
153 | $WantLineNumbers = 0, next SWITCH if $flag eq 'nolinenumbers'; |
154 | $WantLineNumbers = 1, next SWITCH if $flag eq 'linenumbers'; | |
b26a54d0 GS |
155 | $WantOptimize = 0, next SWITCH if $flag eq 'nooptimize'; |
156 | $WantOptimize = 1, next SWITCH if $flag eq 'optimize'; | |
11416672 GS |
157 | $process_inout = 0, next SWITCH if $flag eq 'noinout'; |
158 | $process_inout = 1, next SWITCH if $flag eq 'inout'; | |
159 | $process_argtypes = 0, next SWITCH if $flag eq 'noargtypes'; | |
160 | $process_argtypes = 1, next SWITCH if $flag eq 'argtypes'; | |
b26a54d0 | 161 | (print "xsubpp version $XSUBPP_version\n"), exit |
8e07c86e | 162 | if $flag eq 'v'; |
93a17b20 LW |
163 | die $usage; |
164 | } | |
8fc38fda | 165 | if ($WantPrototypes == -1) |
166 | { $WantPrototypes = 0} | |
167 | else | |
168 | { $ProtoUsed = 1 } | |
169 | ||
170 | ||
8990e307 | 171 | @ARGV == 1 or die $usage; |
c2960299 | 172 | ($dir, $filename) = $ARGV[0] =~ m#(.*)/(.*)# |
57497940 | 173 | or ($dir, $filename) = $ARGV[0] =~ m#(.*)\\(.*)# |
c2960299 | 174 | or ($dir, $filename) = $ARGV[0] =~ m#(.*[>\]])(.*)# |
8990e307 LW |
175 | or ($dir, $filename) = ('.', $ARGV[0]); |
176 | chdir($dir); | |
774d564b | 177 | $pwd = cwd(); |
8fc38fda | 178 | |
179 | ++ $IncludedFiles{$ARGV[0]} ; | |
93a17b20 | 180 | |
4230ab3f | 181 | my(@XSStack) = ({type => 'none'}); # Stack of conditionals and INCLUDEs |
182 | my($XSS_work_idx, $cpp_next_tmp) = (0, "XSubPPtmpAAAA"); | |
aa689395 | 183 | |
4230ab3f | 184 | |
f06db76b AD |
185 | sub TrimWhitespace |
186 | { | |
187 | $_[0] =~ s/^\s+|\s+$//go ; | |
188 | } | |
189 | ||
190 | sub TidyType | |
191 | { | |
192 | local ($_) = @_ ; | |
193 | ||
194 | # rationalise any '*' by joining them into bunches and removing whitespace | |
195 | s#\s*(\*+)\s*#$1#g; | |
e50aee73 | 196 | s#(\*+)# $1 #g ; |
f06db76b AD |
197 | |
198 | # change multiple whitespace into a single space | |
199 | s/\s+/ /g ; | |
200 | ||
201 | # trim leading & trailing whitespace | |
202 | TrimWhitespace($_) ; | |
203 | ||
204 | $_ ; | |
205 | } | |
206 | ||
93a17b20 | 207 | $typemap = shift @ARGV; |
8990e307 LW |
208 | foreach $typemap (@tm) { |
209 | die "Can't find $typemap in $pwd\n" unless -r $typemap; | |
93a17b20 | 210 | } |
748a9306 LW |
211 | unshift @tm, qw(../../../../lib/ExtUtils/typemap ../../../lib/ExtUtils/typemap |
212 | ../../lib/ExtUtils/typemap ../../../typemap ../../typemap | |
213 | ../typemap typemap); | |
8990e307 | 214 | foreach $typemap (@tm) { |
dd713d92 | 215 | next unless -f $typemap ; |
f06db76b AD |
216 | # skip directories, binary files etc. |
217 | warn("Warning: ignoring non-text typemap file '$typemap'\n"), next | |
218 | unless -T $typemap ; | |
219 | open(TYPEMAP, $typemap) | |
220 | or warn ("Warning: could not open typemap file '$typemap': $!\n"), next; | |
e50aee73 | 221 | $mode = 'Typemap'; |
c2960299 | 222 | $junk = "" ; |
8990e307 LW |
223 | $current = \$junk; |
224 | while (<TYPEMAP>) { | |
e50aee73 | 225 | next if /^\s*#/; |
e1f0c0aa | 226 | my $line_no = $. + 1; |
8e07c86e AD |
227 | if (/^INPUT\s*$/) { $mode = 'Input'; $current = \$junk; next; } |
228 | if (/^OUTPUT\s*$/) { $mode = 'Output'; $current = \$junk; next; } | |
229 | if (/^TYPEMAP\s*$/) { $mode = 'Typemap'; $current = \$junk; next; } | |
e50aee73 AD |
230 | if ($mode eq 'Typemap') { |
231 | chomp; | |
f06db76b AD |
232 | my $line = $_ ; |
233 | TrimWhitespace($_) ; | |
234 | # skip blank lines and comment lines | |
235 | next if /^$/ or /^#/ ; | |
382b8d97 PM |
236 | my($type,$kind, $proto) = /^\s*(.*?\S)\s+(\S+)\s*($proto_re*)\s*$/ or |
237 | warn("Warning: File '$typemap' Line $. '$line' TYPEMAP entry needs 2 or 3 columns\n"), next; | |
238 | $type = TidyType($type) ; | |
239 | $type_kind{$type} = $kind ; | |
240 | # prototype defaults to '$' | |
93d3b392 | 241 | $proto = "\$" unless $proto ; |
382b8d97 PM |
242 | warn("Warning: File '$typemap' Line $. '$line' Invalid prototype '$proto'\n") |
243 | unless ValidProtoString($proto) ; | |
244 | $proto_letter{$type} = C_string($proto) ; | |
8e07c86e AD |
245 | } |
246 | elsif (/^\s/) { | |
247 | $$current .= $_; | |
463ee0b2 | 248 | } |
e50aee73 | 249 | elsif ($mode eq 'Input') { |
8e07c86e AD |
250 | s/\s+$//; |
251 | $input_expr{$_} = ''; | |
252 | $current = \$input_expr{$_}; | |
93a17b20 | 253 | } |
8990e307 | 254 | else { |
8e07c86e AD |
255 | s/\s+$//; |
256 | $output_expr{$_} = ''; | |
257 | $current = \$output_expr{$_}; | |
93a17b20 | 258 | } |
8990e307 LW |
259 | } |
260 | close(TYPEMAP); | |
261 | } | |
93a17b20 | 262 | |
8990e307 LW |
263 | foreach $key (keys %input_expr) { |
264 | $input_expr{$key} =~ s/\n+$//; | |
265 | } | |
93a17b20 | 266 | |
14455d6c | 267 | $bal = qr[(?:(?>[^()]+)|\((??{ $bal })\))*]; # ()-balanced |
b26a54d0 | 268 | $cast = qr[(?:\(\s*SV\s*\*\s*\)\s*)?]; # Optional (SV*) cast |
14455d6c | 269 | $size = qr[,\s* (??{ $bal }) ]x; # Third arg (to setpvn) |
b26a54d0 GS |
270 | |
271 | foreach $key (keys %output_expr) { | |
272 | use re 'eval'; | |
273 | ||
274 | my ($t, $with_size, $arg, $sarg) = | |
275 | ($output_expr{$key} =~ | |
438cc608 | 276 | m[^ \s+ sv_set ( [iunp] ) v (n)? # Type, is_setpvn |
b26a54d0 | 277 | \s* \( \s* $cast \$arg \s* , |
14455d6c GS |
278 | \s* ( (??{ $bal }) ) # Set from |
279 | ( (??{ $size }) )? # Possible sizeof set-from | |
b26a54d0 GS |
280 | \) \s* ; \s* $ |
281 | ]x); | |
282 | $targetable{$key} = [$t, $with_size, $arg, $sarg] if $t; | |
283 | } | |
284 | ||
8e07c86e AD |
285 | $END = "!End!\n\n"; # "impossible" keyword (multiple newline) |
286 | ||
287 | # Match an XS keyword | |
382b8d97 PM |
288 | $BLOCK_re= '\s*(' . join('|', qw( |
289 | REQUIRE BOOT CASE PREINIT INPUT INIT CODE PPCODE OUTPUT | |
be3174d2 | 290 | CLEANUP ALIAS ATTRS PROTOTYPES PROTOTYPE VERSIONCHECK INCLUDE |
54162f5c | 291 | SCOPE INTERFACE INTERFACE_MACRO C_ARGS POSTCALL OVERLOAD |
382b8d97 | 292 | )) . "|$END)\\s*:"; |
8e07c86e AD |
293 | |
294 | # Input: ($_, @line) == unparsed input. | |
295 | # Output: ($_, @line) == (rest of line, following lines). | |
296 | # Return: the matched keyword if found, otherwise 0 | |
297 | sub check_keyword { | |
298 | $_ = shift(@line) while !/\S/ && @line; | |
299 | s/^(\s*)($_[0])\s*:\s*(?:#.*)?/$1/s && $2; | |
300 | } | |
301 | ||
efbca139 | 302 | my ($C_group_rex, $C_arg); |
f8b8e0a4 GS |
303 | # Group in C (no support for comments or literals) |
304 | $C_group_rex = qr/ [({\[] | |
14455d6c | 305 | (?: (?> [^()\[\]{}]+ ) | (??{ $C_group_rex }) )* |
f8b8e0a4 GS |
306 | [)}\]] /x ; |
307 | # Chunk in C without comma at toplevel (no comments): | |
308 | $C_arg = qr/ (?: (?> [^()\[\]{},"']+ ) | |
14455d6c | 309 | | (??{ $C_group_rex }) |
f8b8e0a4 GS |
310 | | " (?: (?> [^\\"]+ ) |
311 | | \\. | |
312 | )* " # String literal | |
313 | | ' (?: (?> [^\\']+ ) | \\. )* ' # Char literal | |
314 | )* /xs; | |
8e07c86e | 315 | |
6f1abe2b JT |
316 | if ($WantLineNumbers) { |
317 | { | |
318 | package xsubpp::counter; | |
319 | sub TIEHANDLE { | |
320 | my ($class, $cfile) = @_; | |
321 | my $buf = ""; | |
322 | $SECTION_END_MARKER = "#line --- \"$cfile\""; | |
323 | $line_no = 1; | |
324 | bless \$buf; | |
325 | } | |
326 | ||
327 | sub PRINT { | |
328 | my $self = shift; | |
329 | for (@_) { | |
330 | $$self .= $_; | |
331 | while ($$self =~ s/^([^\n]*\n)//) { | |
332 | my $line = $1; | |
333 | ++ $line_no; | |
334 | $line =~ s|^\#line\s+---(?=\s)|#line $line_no|; | |
335 | print STDOUT $line; | |
336 | } | |
337 | } | |
338 | } | |
339 | ||
340 | sub PRINTF { | |
341 | my $self = shift; | |
342 | my $fmt = shift; | |
343 | $self->PRINT(sprintf($fmt, @_)); | |
344 | } | |
345 | ||
346 | sub DESTROY { | |
347 | # Not necessary if we're careful to end with a "\n" | |
348 | my $self = shift; | |
349 | print STDOUT $$self; | |
350 | } | |
351 | } | |
352 | ||
353 | my $cfile = $filename; | |
354 | $cfile =~ s/\.xs$/.c/i or $cfile .= ".c"; | |
355 | tie(*PSEUDO_STDOUT, 'xsubpp::counter', $cfile); | |
356 | select PSEUDO_STDOUT; | |
357 | } | |
358 | ||
8e07c86e | 359 | sub print_section { |
6f1abe2b JT |
360 | # the "do" is required for right semantics |
361 | do { $_ = shift(@line) } while !/\S/ && @line; | |
362 | ||
363 | print("#line ", $line_no[@line_no - @line -1], " \"$filename\"\n") | |
d3308daf | 364 | if $WantLineNumbers && !/^\s*#\s*line\b/ && !/^#if XSubPPtmp/; |
8e07c86e AD |
365 | for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) { |
366 | print "$_\n"; | |
367 | } | |
6f1abe2b | 368 | print "$xsubpp::counter::SECTION_END_MARKER\n" if $WantLineNumbers; |
8e07c86e AD |
369 | } |
370 | ||
cfc02341 IZ |
371 | sub merge_section { |
372 | my $in = ''; | |
373 | ||
374 | while (!/\S/ && @line) { | |
375 | $_ = shift(@line); | |
376 | } | |
377 | ||
378 | for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) { | |
379 | $in .= "$_\n"; | |
380 | } | |
381 | chomp $in; | |
382 | return $in; | |
383 | } | |
384 | ||
8fc38fda | 385 | sub process_keyword($) |
386 | { | |
387 | my($pattern) = @_ ; | |
388 | my $kwd ; | |
389 | ||
390 | &{"${kwd}_handler"}() | |
391 | while $kwd = check_keyword($pattern) ; | |
392 | } | |
393 | ||
8e07c86e AD |
394 | sub CASE_handler { |
395 | blurt ("Error: `CASE:' after unconditional `CASE:'") | |
396 | if $condnum && $cond eq ''; | |
397 | $cond = $_; | |
398 | TrimWhitespace($cond); | |
399 | print " ", ($condnum++ ? " else" : ""), ($cond ? " if ($cond)\n" : "\n"); | |
400 | $_ = '' ; | |
401 | } | |
402 | ||
403 | sub INPUT_handler { | |
404 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { | |
405 | last if /^\s*NOT_IMPLEMENTED_YET/; | |
406 | next unless /\S/; # skip blank lines | |
407 | ||
408 | TrimWhitespace($_) ; | |
409 | my $line = $_ ; | |
410 | ||
411 | # remove trailing semicolon if no initialisation | |
7ad6fb0b | 412 | s/\s*;$//g unless /[=;+].*\S/ ; |
8e07c86e | 413 | |
08ff138d IZ |
414 | # Process the length(foo) declarations |
415 | if (s/^([^=]*)\blength\(\s*(\w+)\s*\)\s*$/$1 XSauto_length_of_$2=NO_INIT/x) { | |
416 | print "\tSTRLEN\tSTRLEN_length_of_$2;\n"; | |
417 | $lengthof{$2} = $name; | |
418 | # $islengthof{$name} = $1; | |
419 | $deferred .= "\n\tXSauto_length_of_$2 = STRLEN_length_of_$2;"; | |
420 | } | |
421 | ||
8e07c86e AD |
422 | # check for optional initialisation code |
423 | my $var_init = '' ; | |
7ad6fb0b | 424 | $var_init = $1 if s/\s*([=;+].*)$//s ; |
8e07c86e AD |
425 | $var_init =~ s/"/\\"/g; |
426 | ||
427 | s/\s+/ /g; | |
0f568861 | 428 | my ($var_type, $var_addr, $var_name) = /^(.*?[^&\s])\s*(\&?)\s*\b(\w+)$/s |
8e07c86e AD |
429 | or blurt("Error: invalid argument declaration '$line'"), next; |
430 | ||
431 | # Check for duplicate definitions | |
432 | blurt ("Error: duplicate definition of argument '$var_name' ignored"), next | |
f8b8e0a4 | 433 | if $arg_list{$var_name}++ |
08ff138d | 434 | or defined $argtype_seen{$var_name} and not $processing_arg_with_types; |
8e07c86e AD |
435 | |
436 | $thisdone |= $var_name eq "THIS"; | |
437 | $retvaldone |= $var_name eq "RETVAL"; | |
438 | $var_types{$var_name} = $var_type; | |
ddf6bed1 IZ |
439 | # XXXX This check is a safeguard against the unfinished conversion of |
440 | # generate_init(). When generate_init() is fixed, | |
441 | # one can use 2-args map_type() unconditionally. | |
442 | if ($var_type =~ / \( \s* \* \s* \) /x) { | |
443 | # Function pointers are not yet supported with &output_init! | |
444 | print "\t" . &map_type($var_type, $var_name); | |
445 | $name_printed = 1; | |
446 | } else { | |
447 | print "\t" . &map_type($var_type); | |
448 | $name_printed = 0; | |
449 | } | |
8e07c86e | 450 | $var_num = $args_match{$var_name}; |
382b8d97 | 451 | |
8fc38fda | 452 | $proto_arg[$var_num] = ProtoString($var_type) |
453 | if $var_num ; | |
0f568861 | 454 | $func_args =~ s/\b($var_name)\b/&$1/ if $var_addr; |
f8b8e0a4 | 455 | if ($var_init =~ /^[=;]\s*NO_INIT\s*;?\s*$/ |
0f568861 | 456 | or $in_out{$var_name} and $in_out{$var_name} =~ /^OUT/ |
f8b8e0a4 | 457 | and $var_init !~ /\S/) { |
ddf6bed1 IZ |
458 | if ($name_printed) { |
459 | print ";\n"; | |
460 | } else { | |
9bea678f | 461 | print "\t$var_name;\n"; |
ddf6bed1 | 462 | } |
8e07c86e | 463 | } elsif ($var_init =~ /\S/) { |
ddf6bed1 | 464 | &output_init($var_type, $var_num, $var_name, $var_init, $name_printed); |
8e07c86e AD |
465 | } elsif ($var_num) { |
466 | # generate initialization code | |
ddf6bed1 | 467 | &generate_init($var_type, $var_num, $var_name, $name_printed); |
8e07c86e AD |
468 | } else { |
469 | print ";\n"; | |
470 | } | |
471 | } | |
472 | } | |
473 | ||
474 | sub OUTPUT_handler { | |
475 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { | |
476 | next unless /\S/; | |
ef50df4b GS |
477 | if (/^\s*SETMAGIC\s*:\s*(ENABLE|DISABLE)\s*/) { |
478 | $DoSetMagic = ($1 eq "ENABLE" ? 1 : 0); | |
479 | next; | |
480 | } | |
8e07c86e AD |
481 | my ($outarg, $outcode) = /^\s*(\S+)\s*(.*?)\s*$/s ; |
482 | blurt ("Error: duplicate OUTPUT argument '$outarg' ignored"), next | |
483 | if $outargs{$outarg} ++ ; | |
484 | if (!$gotRETVAL and $outarg eq 'RETVAL') { | |
485 | # deal with RETVAL last | |
486 | $RETVAL_code = $outcode ; | |
487 | $gotRETVAL = 1 ; | |
488 | next ; | |
489 | } | |
490 | blurt ("Error: OUTPUT $outarg not an argument"), next | |
491 | unless defined($args_match{$outarg}); | |
492 | blurt("Error: No input definition for OUTPUT argument '$outarg' - ignored"), next | |
493 | unless defined $var_types{$outarg} ; | |
f78230ad | 494 | $var_num = $args_match{$outarg}; |
8e07c86e AD |
495 | if ($outcode) { |
496 | print "\t$outcode\n"; | |
f78230ad | 497 | print "\tSvSETMAGIC(ST(" , $var_num-1 , "));\n" if $DoSetMagic; |
8e07c86e | 498 | } else { |
ef50df4b | 499 | &generate_output($var_types{$outarg}, $var_num, $outarg, $DoSetMagic); |
8e07c86e | 500 | } |
0f568861 IZ |
501 | delete $in_out{$outarg} # No need to auto-OUTPUT |
502 | if exists $in_out{$outarg} and $in_out{$outarg} =~ /OUT$/; | |
8e07c86e AD |
503 | } |
504 | } | |
505 | ||
cfc02341 IZ |
506 | sub C_ARGS_handler() { |
507 | my $in = merge_section(); | |
508 | ||
509 | TrimWhitespace($in); | |
510 | $func_args = $in; | |
511 | } | |
512 | ||
513 | sub INTERFACE_MACRO_handler() { | |
514 | my $in = merge_section(); | |
515 | ||
516 | TrimWhitespace($in); | |
517 | if ($in =~ /\s/) { # two | |
518 | ($interface_macro, $interface_macro_set) = split ' ', $in; | |
519 | } else { | |
520 | $interface_macro = $in; | |
521 | $interface_macro_set = 'UNKNOWN_CVT'; # catch later | |
522 | } | |
523 | $interface = 1; # local | |
524 | $Interfaces = 1; # global | |
525 | } | |
526 | ||
527 | sub INTERFACE_handler() { | |
528 | my $in = merge_section(); | |
529 | ||
530 | TrimWhitespace($in); | |
531 | ||
532 | foreach (split /[\s,]+/, $in) { | |
533 | $Interfaces{$_} = $_; | |
534 | } | |
535 | print Q<<"EOF"; | |
536 | # XSFUNCTION = $interface_macro($ret_type,cv,XSANY.any_dptr); | |
537 | EOF | |
538 | $interface = 1; # local | |
539 | $Interfaces = 1; # global | |
540 | } | |
541 | ||
8fc38fda | 542 | sub CLEANUP_handler() { print_section() } |
543 | sub PREINIT_handler() { print_section() } | |
63385af5 | 544 | sub POSTCALL_handler() { print_section() } |
8fc38fda | 545 | sub INIT_handler() { print_section() } |
546 | ||
8e07c86e AD |
547 | sub GetAliases |
548 | { | |
549 | my ($line) = @_ ; | |
550 | my ($orig) = $line ; | |
551 | my ($alias) ; | |
552 | my ($value) ; | |
553 | ||
554 | # Parse alias definitions | |
555 | # format is | |
556 | # alias = value alias = value ... | |
557 | ||
558 | while ($line =~ s/^\s*([\w:]+)\s*=\s*(\w+)\s*//) { | |
559 | $alias = $1 ; | |
560 | $orig_alias = $alias ; | |
561 | $value = $2 ; | |
562 | ||
563 | # check for optional package definition in the alias | |
564 | $alias = $Packprefix . $alias if $alias !~ /::/ ; | |
565 | ||
566 | # check for duplicate alias name & duplicate value | |
567 | Warn("Warning: Ignoring duplicate alias '$orig_alias'") | |
4230ab3f | 568 | if defined $XsubAliases{$alias} ; |
8e07c86e | 569 | |
4230ab3f | 570 | Warn("Warning: Aliases '$orig_alias' and '$XsubAliasValues{$value}' have identical values") |
571 | if $XsubAliasValues{$value} ; | |
8e07c86e | 572 | |
4230ab3f | 573 | $XsubAliases = 1; |
574 | $XsubAliases{$alias} = $value ; | |
575 | $XsubAliasValues{$value} = $orig_alias ; | |
8e07c86e AD |
576 | } |
577 | ||
578 | blurt("Error: Cannot parse ALIAS definitions from '$orig'") | |
579 | if $line ; | |
580 | } | |
581 | ||
be3174d2 GS |
582 | sub ATTRS_handler () |
583 | { | |
584 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { | |
585 | next unless /\S/; | |
586 | TrimWhitespace($_) ; | |
587 | push @Attributes, $_; | |
588 | } | |
589 | } | |
590 | ||
382b8d97 | 591 | sub ALIAS_handler () |
8e07c86e AD |
592 | { |
593 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { | |
594 | next unless /\S/; | |
595 | TrimWhitespace($_) ; | |
596 | GetAliases($_) if $_ ; | |
597 | } | |
598 | } | |
599 | ||
54162f5c JP |
600 | sub OVERLOAD_handler() |
601 | { | |
602 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { | |
603 | next unless /\S/; | |
604 | TrimWhitespace($_) ; | |
964097f7 | 605 | while ( s/^\s*([\w:"\\)\+\-\*\/\%\<\>\.\&\|\^\!\~\{\}\=]+)\s*//) { |
54162f5c JP |
606 | $Overload = 1 unless $Overload; |
607 | my $overload = "$Package\::(".$1 ; | |
608 | push(@InitFileCode, | |
609 | " newXS(\"$overload\", XS_$Full_func_name, file$proto);\n"); | |
610 | } | |
611 | } | |
612 | ||
613 | } | |
614 | ||
382b8d97 | 615 | sub REQUIRE_handler () |
8e07c86e AD |
616 | { |
617 | # the rest of the current line should contain a version number | |
618 | my ($Ver) = $_ ; | |
619 | ||
620 | TrimWhitespace($Ver) ; | |
621 | ||
622 | death ("Error: REQUIRE expects a version number") | |
623 | unless $Ver ; | |
624 | ||
625 | # check that the version number is of the form n.n | |
626 | death ("Error: REQUIRE: expected a number, got '$Ver'") | |
627 | unless $Ver =~ /^\d+(\.\d*)?/ ; | |
628 | ||
629 | death ("Error: xsubpp $Ver (or better) required--this is only $XSUBPP_version.") | |
630 | unless $XSUBPP_version >= $Ver ; | |
631 | } | |
632 | ||
8fc38fda | 633 | sub VERSIONCHECK_handler () |
634 | { | |
635 | # the rest of the current line should contain either ENABLE or | |
636 | # DISABLE | |
637 | ||
638 | TrimWhitespace($_) ; | |
639 | ||
640 | # check for ENABLE/DISABLE | |
641 | death ("Error: VERSIONCHECK: ENABLE/DISABLE") | |
642 | unless /^(ENABLE|DISABLE)/i ; | |
643 | ||
644 | $WantVersionChk = 1 if $1 eq 'ENABLE' ; | |
645 | $WantVersionChk = 0 if $1 eq 'DISABLE' ; | |
646 | ||
647 | } | |
648 | ||
382b8d97 PM |
649 | sub PROTOTYPE_handler () |
650 | { | |
7d41bd0a PM |
651 | my $specified ; |
652 | ||
c07a80fd | 653 | death("Error: Only 1 PROTOTYPE definition allowed per xsub") |
654 | if $proto_in_this_xsub ++ ; | |
655 | ||
382b8d97 PM |
656 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
657 | next unless /\S/; | |
7d41bd0a | 658 | $specified = 1 ; |
382b8d97 PM |
659 | TrimWhitespace($_) ; |
660 | if ($_ eq 'DISABLE') { | |
661 | $ProtoThisXSUB = 0 | |
662 | } | |
663 | elsif ($_ eq 'ENABLE') { | |
664 | $ProtoThisXSUB = 1 | |
665 | } | |
666 | else { | |
667 | # remove any whitespace | |
668 | s/\s+//g ; | |
669 | death("Error: Invalid prototype '$_'") | |
670 | unless ValidProtoString($_) ; | |
671 | $ProtoThisXSUB = C_string($_) ; | |
672 | } | |
673 | } | |
c07a80fd | 674 | |
7d41bd0a PM |
675 | # If no prototype specified, then assume empty prototype "" |
676 | $ProtoThisXSUB = 2 unless $specified ; | |
677 | ||
8fc38fda | 678 | $ProtoUsed = 1 ; |
c07a80fd | 679 | |
382b8d97 PM |
680 | } |
681 | ||
db3b9414 | 682 | sub SCOPE_handler () |
683 | { | |
684 | death("Error: Only 1 SCOPE declaration allowed per xsub") | |
685 | if $scope_in_this_xsub ++ ; | |
686 | ||
687 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { | |
688 | next unless /\S/; | |
689 | TrimWhitespace($_) ; | |
690 | if ($_ =~ /^DISABLE/i) { | |
691 | $ScopeThisXSUB = 0 | |
692 | } | |
693 | elsif ($_ =~ /^ENABLE/i) { | |
694 | $ScopeThisXSUB = 1 | |
695 | } | |
696 | } | |
697 | ||
698 | } | |
699 | ||
382b8d97 PM |
700 | sub PROTOTYPES_handler () |
701 | { | |
702 | # the rest of the current line should contain either ENABLE or | |
703 | # DISABLE | |
704 | ||
705 | TrimWhitespace($_) ; | |
706 | ||
707 | # check for ENABLE/DISABLE | |
708 | death ("Error: PROTOTYPES: ENABLE/DISABLE") | |
709 | unless /^(ENABLE|DISABLE)/i ; | |
710 | ||
711 | $WantPrototypes = 1 if $1 eq 'ENABLE' ; | |
712 | $WantPrototypes = 0 if $1 eq 'DISABLE' ; | |
8fc38fda | 713 | $ProtoUsed = 1 ; |
382b8d97 PM |
714 | |
715 | } | |
716 | ||
8fc38fda | 717 | sub INCLUDE_handler () |
718 | { | |
719 | # the rest of the current line should contain a valid filename | |
720 | ||
721 | TrimWhitespace($_) ; | |
722 | ||
8fc38fda | 723 | death("INCLUDE: filename missing") |
724 | unless $_ ; | |
725 | ||
726 | death("INCLUDE: output pipe is illegal") | |
727 | if /^\s*\|/ ; | |
728 | ||
729 | # simple minded recursion detector | |
730 | death("INCLUDE loop detected") | |
731 | if $IncludedFiles{$_} ; | |
732 | ||
733 | ++ $IncludedFiles{$_} unless /\|\s*$/ ; | |
734 | ||
735 | # Save the current file context. | |
4230ab3f | 736 | push(@XSStack, { |
737 | type => 'file', | |
8fc38fda | 738 | LastLine => $lastline, |
739 | LastLineNo => $lastline_no, | |
740 | Line => \@line, | |
741 | LineNo => \@line_no, | |
742 | Filename => $filename, | |
c07a80fd | 743 | Handle => $FH, |
8fc38fda | 744 | }) ; |
745 | ||
c07a80fd | 746 | ++ $FH ; |
8fc38fda | 747 | |
748 | # open the new file | |
c07a80fd | 749 | open ($FH, "$_") or death("Cannot open '$_': $!") ; |
8fc38fda | 750 | |
751 | print Q<<"EOF" ; | |
752 | # | |
753 | #/* INCLUDE: Including '$_' from '$filename' */ | |
754 | # | |
755 | EOF | |
756 | ||
8fc38fda | 757 | $filename = $_ ; |
758 | ||
c07a80fd | 759 | # Prime the pump by reading the first |
760 | # non-blank line | |
761 | ||
762 | # skip leading blank lines | |
763 | while (<$FH>) { | |
764 | last unless /^\s*$/ ; | |
765 | } | |
766 | ||
767 | $lastline = $_ ; | |
8fc38fda | 768 | $lastline_no = $. ; |
769 | ||
770 | } | |
771 | ||
772 | sub PopFile() | |
773 | { | |
4230ab3f | 774 | return 0 unless $XSStack[-1]{type} eq 'file' ; |
775 | ||
776 | my $data = pop @XSStack ; | |
8fc38fda | 777 | my $ThisFile = $filename ; |
778 | my $isPipe = ($filename =~ /\|\s*$/) ; | |
779 | ||
780 | -- $IncludedFiles{$filename} | |
781 | unless $isPipe ; | |
782 | ||
c07a80fd | 783 | close $FH ; |
8fc38fda | 784 | |
c07a80fd | 785 | $FH = $data->{Handle} ; |
8fc38fda | 786 | $filename = $data->{Filename} ; |
787 | $lastline = $data->{LastLine} ; | |
788 | $lastline_no = $data->{LastLineNo} ; | |
789 | @line = @{ $data->{Line} } ; | |
790 | @line_no = @{ $data->{LineNo} } ; | |
4230ab3f | 791 | |
8fc38fda | 792 | if ($isPipe and $? ) { |
793 | -- $lastline_no ; | |
794 | print STDERR "Error reading from pipe '$ThisFile': $! in $filename, line $lastline_no\n" ; | |
795 | exit 1 ; | |
796 | } | |
797 | ||
798 | print Q<<"EOF" ; | |
799 | # | |
800 | #/* INCLUDE: Returning to '$filename' from '$ThisFile' */ | |
801 | # | |
802 | EOF | |
803 | ||
804 | return 1 ; | |
805 | } | |
806 | ||
382b8d97 PM |
807 | sub ValidProtoString ($) |
808 | { | |
809 | my($string) = @_ ; | |
810 | ||
811 | if ( $string =~ /^$proto_re+$/ ) { | |
812 | return $string ; | |
813 | } | |
814 | ||
815 | return 0 ; | |
816 | } | |
817 | ||
818 | sub C_string ($) | |
819 | { | |
820 | my($string) = @_ ; | |
821 | ||
822 | $string =~ s[\\][\\\\]g ; | |
823 | $string ; | |
824 | } | |
825 | ||
826 | sub ProtoString ($) | |
827 | { | |
828 | my ($type) = @_ ; | |
829 | ||
93d3b392 | 830 | $proto_letter{$type} or "\$" ; |
382b8d97 PM |
831 | } |
832 | ||
8e07c86e AD |
833 | sub check_cpp { |
834 | my @cpp = grep(/^\#\s*(?:if|e\w+)/, @line); | |
835 | if (@cpp) { | |
836 | my ($cpp, $cpplevel); | |
837 | for $cpp (@cpp) { | |
838 | if ($cpp =~ /^\#\s*if/) { | |
839 | $cpplevel++; | |
840 | } elsif (!$cpplevel) { | |
841 | Warn("Warning: #else/elif/endif without #if in this function"); | |
4230ab3f | 842 | print STDERR " (precede it with a blank line if the matching #if is outside the function)\n" |
843 | if $XSStack[-1]{type} eq 'if'; | |
8e07c86e AD |
844 | return; |
845 | } elsif ($cpp =~ /^\#\s*endif/) { | |
846 | $cpplevel--; | |
847 | } | |
848 | } | |
849 | Warn("Warning: #if without #endif in this function") if $cpplevel; | |
850 | } | |
851 | } | |
852 | ||
853 | ||
8990e307 | 854 | sub Q { |
e50aee73 | 855 | my($text) = @_; |
4633a7c4 | 856 | $text =~ s/^#//gm; |
2304df62 AD |
857 | $text =~ s/\[\[/{/g; |
858 | $text =~ s/\]\]/}/g; | |
8990e307 | 859 | $text; |
93a17b20 LW |
860 | } |
861 | ||
c07a80fd | 862 | open($FH, $filename) or die "cannot open $filename: $!\n"; |
c2960299 | 863 | |
f06db76b | 864 | # Identify the version of xsubpp used |
f06db76b | 865 | print <<EOM ; |
e50aee73 AD |
866 | /* |
867 | * This file was generated automatically by xsubpp version $XSUBPP_version from the | |
93d3b392 | 868 | * contents of $filename. Do not edit this file, edit $filename instead. |
e50aee73 AD |
869 | * |
870 | * ANY CHANGES MADE HERE WILL BE LOST! | |
f06db76b AD |
871 | * |
872 | */ | |
e50aee73 | 873 | |
f06db76b | 874 | EOM |
6f1abe2b JT |
875 | |
876 | ||
877 | print("#line 1 \"$filename\"\n") | |
878 | if $WantLineNumbers; | |
f06db76b | 879 | |
e03d20b3 | 880 | firstmodule: |
c07a80fd | 881 | while (<$FH>) { |
e03d20b3 | 882 | if (/^=/) { |
7817ba4d | 883 | my $podstartline = $.; |
e03d20b3 | 884 | do { |
7817ba4d NC |
885 | if (/^=cut\s*$/) { |
886 | print("/* Skipped embedded POD. */\n"); | |
887 | printf("#line %d \"$filename\"\n", $. + 1) | |
888 | if $WantLineNumbers; | |
889 | next firstmodule | |
890 | } | |
891 | ||
e03d20b3 | 892 | } while (<$FH>); |
7817ba4d NC |
893 | # At this point $. is at end of file so die won't state the start |
894 | # of the problem, and as we haven't yet read any lines &death won't | |
895 | # show the correct line in the message either. | |
896 | die ("Error: Unterminated pod in $filename, line $podstartline\n") | |
897 | unless $lastline; | |
e03d20b3 | 898 | } |
e50aee73 AD |
899 | last if ($Module, $Package, $Prefix) = |
900 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/; | |
01f988be | 901 | |
a0d0e21e | 902 | print $_; |
93a17b20 | 903 | } |
e50aee73 AD |
904 | &Exit unless defined $_; |
905 | ||
cfc02341 IZ |
906 | print "$xsubpp::counter::SECTION_END_MARKER\n" if $WantLineNumbers; |
907 | ||
8fc38fda | 908 | $lastline = $_; |
909 | $lastline_no = $.; | |
93a17b20 | 910 | |
c07a80fd | 911 | # Read next xsub into @line from ($lastline, <$FH>). |
2304df62 AD |
912 | sub fetch_para { |
913 | # parse paragraph | |
4230ab3f | 914 | death ("Error: Unterminated `#if/#ifdef/#ifndef'") |
915 | if !defined $lastline && $XSStack[-1]{type} eq 'if'; | |
2304df62 | 916 | @line = (); |
c2960299 | 917 | @line_no = () ; |
4230ab3f | 918 | return PopFile() if !defined $lastline; |
e50aee73 AD |
919 | |
920 | if ($lastline =~ | |
921 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/) { | |
922 | $Module = $1; | |
8e07c86e AD |
923 | $Package = defined($2) ? $2 : ''; # keep -w happy |
924 | $Prefix = defined($3) ? $3 : ''; # keep -w happy | |
ff68c719 | 925 | $Prefix = quotemeta $Prefix ; |
e50aee73 | 926 | ($Module_cname = $Module) =~ s/\W/_/g; |
8e07c86e | 927 | ($Packid = $Package) =~ tr/:/_/; |
e50aee73 | 928 | $Packprefix = $Package; |
8e07c86e | 929 | $Packprefix .= "::" if $Packprefix ne ""; |
2304df62 | 930 | $lastline = ""; |
e50aee73 AD |
931 | } |
932 | ||
933 | for(;;) { | |
e03d20b3 | 934 | # Skip embedded PODs |
413e5597 | 935 | while ($lastline =~ /^=/) { |
e03d20b3 GS |
936 | while ($lastline = <$FH>) { |
937 | last if ($lastline =~ /^=cut\s*$/); | |
938 | } | |
939 | death ("Error: Unterminated pod") unless $lastline; | |
940 | $lastline = <$FH>; | |
941 | chomp $lastline; | |
942 | $lastline =~ s/^\s+$//; | |
943 | } | |
e50aee73 | 944 | if ($lastline !~ /^\s*#/ || |
4230ab3f | 945 | # CPP directives: |
946 | # ANSI: if ifdef ifndef elif else endif define undef | |
947 | # line error pragma | |
948 | # gcc: warning include_next | |
949 | # obj-c: import | |
950 | # others: ident (gcc notes that some cpps have this one) | |
951 | $lastline =~ /^#[ \t]*(?:(?:if|ifn?def|elif|else|endif|define|undef|pragma|error|warning|line\s+\d+|ident)\b|(?:include(?:_next)?|import)\s*["<].*[>"])/) { | |
e50aee73 AD |
952 | last if $lastline =~ /^\S/ && @line && $line[-1] eq ""; |
953 | push(@line, $lastline); | |
954 | push(@line_no, $lastline_no) ; | |
93a17b20 | 955 | } |
e50aee73 AD |
956 | |
957 | # Read next line and continuation lines | |
c07a80fd | 958 | last unless defined($lastline = <$FH>); |
e50aee73 AD |
959 | $lastline_no = $.; |
960 | my $tmp_line; | |
961 | $lastline .= $tmp_line | |
c07a80fd | 962 | while ($lastline =~ /\\$/ && defined($tmp_line = <$FH>)); |
f8b8e0a4 | 963 | |
8e07c86e | 964 | chomp $lastline; |
e50aee73 | 965 | $lastline =~ s/^\s+$//; |
2304df62 | 966 | } |
e50aee73 | 967 | pop(@line), pop(@line_no) while @line && $line[-1] eq ""; |
e50aee73 | 968 | 1; |
2304df62 | 969 | } |
93a17b20 | 970 | |
c2960299 | 971 | PARAGRAPH: |
8e07c86e | 972 | while (fetch_para()) { |
e50aee73 | 973 | # Print initial preprocessor statements and blank lines |
4230ab3f | 974 | while (@line && $line[0] !~ /^[^\#]/) { |
975 | my $line = shift(@line); | |
976 | print $line, "\n"; | |
977 | next unless $line =~ /^\#\s*((if)(?:n?def)?|elsif|else|endif)\b/; | |
978 | my $statement = $+; | |
979 | if ($statement eq 'if') { | |
980 | $XSS_work_idx = @XSStack; | |
981 | push(@XSStack, {type => 'if'}); | |
982 | } else { | |
983 | death ("Error: `$statement' with no matching `if'") | |
984 | if $XSStack[-1]{type} ne 'if'; | |
985 | if ($XSStack[-1]{varname}) { | |
986 | push(@InitFileCode, "#endif\n"); | |
987 | push(@BootCode, "#endif"); | |
988 | } | |
989 | ||
990 | my(@fns) = keys %{$XSStack[-1]{functions}}; | |
991 | if ($statement ne 'endif') { | |
992 | # Hide the functions defined in other #if branches, and reset. | |
993 | @{$XSStack[-1]{other_functions}}{@fns} = (1) x @fns; | |
994 | @{$XSStack[-1]}{qw(varname functions)} = ('', {}); | |
995 | } else { | |
996 | my($tmp) = pop(@XSStack); | |
997 | 0 while (--$XSS_work_idx | |
998 | && $XSStack[$XSS_work_idx]{type} ne 'if'); | |
999 | # Keep all new defined functions | |
1000 | push(@fns, keys %{$tmp->{other_functions}}); | |
1001 | @{$XSStack[$XSS_work_idx]{functions}}{@fns} = (1) x @fns; | |
1002 | } | |
1003 | } | |
1004 | } | |
e50aee73 AD |
1005 | |
1006 | next PARAGRAPH unless @line; | |
1007 | ||
4230ab3f | 1008 | if ($XSS_work_idx && !$XSStack[$XSS_work_idx]{varname}) { |
1009 | # We are inside an #if, but have not yet #defined its xsubpp variable. | |
1010 | print "#define $cpp_next_tmp 1\n\n"; | |
1011 | push(@InitFileCode, "#if $cpp_next_tmp\n"); | |
1012 | push(@BootCode, "#if $cpp_next_tmp"); | |
1013 | $XSStack[$XSS_work_idx]{varname} = $cpp_next_tmp++; | |
1014 | } | |
1015 | ||
55497cff | 1016 | death ("Code is not inside a function" |
1017 | ." (maybe last function was ended by a blank line " | |
6d087280 | 1018 | ." followed by a statement on column one?)") |
e50aee73 AD |
1019 | if $line[0] =~ /^\s/; |
1020 | ||
2304df62 AD |
1021 | # initialize info arrays |
1022 | undef(%args_match); | |
1023 | undef(%var_types); | |
2304df62 AD |
1024 | undef(%defaults); |
1025 | undef($class); | |
1026 | undef($static); | |
1027 | undef($elipsis); | |
f06db76b | 1028 | undef($wantRETVAL) ; |
f8b8e0a4 | 1029 | undef($RETVAL_no_return) ; |
f06db76b | 1030 | undef(%arg_list) ; |
382b8d97 | 1031 | undef(@proto_arg) ; |
08ff138d IZ |
1032 | undef(@fake_INPUT_pre) ; # For length(s) generated variables |
1033 | undef(@fake_INPUT) ; | |
f8b8e0a4 | 1034 | undef($processing_arg_with_types) ; |
08ff138d | 1035 | undef(%argtype_seen) ; |
0f568861 | 1036 | undef(@outlist) ; |
f8b8e0a4 | 1037 | undef(%in_out) ; |
08ff138d IZ |
1038 | undef(%lengthof) ; |
1039 | # undef(%islengthof) ; | |
c07a80fd | 1040 | undef($proto_in_this_xsub) ; |
db3b9414 | 1041 | undef($scope_in_this_xsub) ; |
cfc02341 | 1042 | undef($interface); |
f8b8e0a4 | 1043 | undef($prepush_done); |
cfc02341 IZ |
1044 | $interface_macro = 'XSINTERFACE_FUNC' ; |
1045 | $interface_macro_set = 'XSINTERFACE_FUNC_SET' ; | |
382b8d97 | 1046 | $ProtoThisXSUB = $WantPrototypes ; |
db3b9414 | 1047 | $ScopeThisXSUB = 0; |
f8b8e0a4 | 1048 | $xsreturn = 0; |
2304df62 | 1049 | |
8e07c86e | 1050 | $_ = shift(@line); |
8fc38fda | 1051 | while ($kwd = check_keyword("REQUIRE|PROTOTYPES|VERSIONCHECK|INCLUDE")) { |
1052 | &{"${kwd}_handler"}() ; | |
8e07c86e AD |
1053 | next PARAGRAPH unless @line ; |
1054 | $_ = shift(@line); | |
1055 | } | |
c2960299 | 1056 | |
8e07c86e AD |
1057 | if (check_keyword("BOOT")) { |
1058 | &check_cpp; | |
6f1abe2b JT |
1059 | push (@BootCode, "#line $line_no[@line_no - @line] \"$filename\"") |
1060 | if $WantLineNumbers && $line[0] !~ /^\s*#\s*line\b/; | |
1061 | push (@BootCode, @line, "") ; | |
c2960299 | 1062 | next PARAGRAPH ; |
a0d0e21e | 1063 | } |
c2960299 | 1064 | |
8e07c86e AD |
1065 | |
1066 | # extract return type, function name and arguments | |
cfc02341 | 1067 | ($ret_type) = TidyType($_); |
f8b8e0a4 | 1068 | $RETVAL_no_return = 1 if $ret_type =~ s/^NO_OUTPUT\s+//; |
8e07c86e | 1069 | |
11416672 GS |
1070 | # Allow one-line ANSI-like declaration |
1071 | unshift @line, $2 | |
1072 | if $process_argtypes | |
1073 | and $ret_type =~ s/^(.*?\w.*?)\s*\b(\w+\s*\(.*)/$1/s; | |
1074 | ||
c2960299 AD |
1075 | # a function definition needs at least 2 lines |
1076 | blurt ("Error: Function definition too short '$ret_type'"), next PARAGRAPH | |
1077 | unless @line ; | |
1078 | ||
8e07c86e AD |
1079 | $static = 1 if $ret_type =~ s/^static\s+//; |
1080 | ||
2304df62 | 1081 | $func_header = shift(@line); |
c2960299 | 1082 | blurt ("Error: Cannot parse function definition from '$func_header'"), next PARAGRAPH |
f8b8e0a4 | 1083 | unless $func_header =~ /^(?:([\w:]*)::)?(\w+)\s*\(\s*(.*?)\s*\)\s*(const)?\s*(;\s*)?$/s; |
c2960299 | 1084 | |
8e07c86e | 1085 | ($class, $func_name, $orig_args) = ($1, $2, $3) ; |
f480b56a | 1086 | $class = "$4 $class" if $4; |
2304df62 | 1087 | ($pname = $func_name) =~ s/^($Prefix)?/$Packprefix/; |
ff68c719 | 1088 | ($clean_func_name = $func_name) =~ s/^$Prefix//; |
1089 | $Full_func_name = "${Packid}_$clean_func_name"; | |
ff0cee69 | 1090 | if ($Is_VMS) { $Full_func_name = $SymSet->addsym($Full_func_name); } |
c2960299 AD |
1091 | |
1092 | # Check for duplicate function definition | |
4230ab3f | 1093 | for $tmp (@XSStack) { |
1094 | next unless defined $tmp->{functions}{$Full_func_name}; | |
ff68c719 | 1095 | Warn("Warning: duplicate function definition '$clean_func_name' detected"); |
4230ab3f | 1096 | last; |
8e07c86e | 1097 | } |
4230ab3f | 1098 | $XSStack[$XSS_work_idx]{functions}{$Full_func_name} ++ ; |
be3174d2 | 1099 | %XsubAliases = %XsubAliasValues = %Interfaces = @Attributes = (); |
ef50df4b | 1100 | $DoSetMagic = 1; |
c2960299 | 1101 | |
f8b8e0a4 GS |
1102 | $orig_args =~ s/\\\s*/ /g; # process line continuations |
1103 | ||
08ff138d | 1104 | my %only_C_inlist; # Not in the signature of Perl function |
f8b8e0a4 GS |
1105 | if ($process_argtypes and $orig_args =~ /\S/) { |
1106 | my $args = "$orig_args ,"; | |
14455d6c GS |
1107 | if ($args =~ /^( (??{ $C_arg }) , )* $ /x) { |
1108 | @args = ($args =~ /\G ( (??{ $C_arg }) ) , /xg); | |
f8b8e0a4 GS |
1109 | for ( @args ) { |
1110 | s/^\s+//; | |
1111 | s/\s+$//; | |
08ff138d IZ |
1112 | my ($arg, $default) = / ( [^=]* ) ( (?: = .* )? ) /x; |
1113 | my ($pre, $name) = ($arg =~ /(.*?) \s* | |
1114 | \b ( \w+ | length\( \s*\w+\s* \) ) | |
1115 | \s* $ /x); | |
f8b8e0a4 GS |
1116 | next unless length $pre; |
1117 | my $out_type; | |
1118 | my $inout_var; | |
0f568861 | 1119 | if ($process_inout and s/^(IN|IN_OUTLIST|OUTLIST|OUT|IN_OUT)\s+//) { |
f8b8e0a4 | 1120 | my $type = $1; |
63385af5 | 1121 | $out_type = $type if $type ne 'IN'; |
0f568861 | 1122 | $arg =~ s/^(IN|IN_OUTLIST|OUTLIST|OUT|IN_OUT)\s+//; |
08ff138d IZ |
1123 | $pre =~ s/^(IN|IN_OUTLIST|OUTLIST|OUT|IN_OUT)\s+//; |
1124 | } | |
1125 | my $islength; | |
1126 | if ($name =~ /^length\( \s* (\w+) \s* \)\z/x) { | |
1127 | $name = "XSauto_length_of_$1"; | |
1128 | $islength = 1; | |
1129 | die "Default value on length() argument: `$_'" | |
1130 | if length $default; | |
f8b8e0a4 | 1131 | } |
08ff138d IZ |
1132 | if (length $pre or $islength) { # Has a type |
1133 | if ($islength) { | |
1134 | push @fake_INPUT_pre, $arg; | |
1135 | } else { | |
1136 | push @fake_INPUT, $arg; | |
1137 | } | |
f8b8e0a4 | 1138 | # warn "pushing '$arg'\n"; |
08ff138d IZ |
1139 | $argtype_seen{$name}++; |
1140 | $_ = "$name$default"; # Assigns to @args | |
f8b8e0a4 | 1141 | } |
08ff138d | 1142 | $only_C_inlist{$_} = 1 if $out_type eq "OUTLIST" or $islength; |
0f568861 | 1143 | push @outlist, $name if $out_type =~ /OUTLIST$/; |
f8b8e0a4 GS |
1144 | $in_out{$name} = $out_type if $out_type; |
1145 | } | |
1146 | } else { | |
1147 | @args = split(/\s*,\s*/, $orig_args); | |
1148 | Warn("Warning: cannot parse argument list '$orig_args', fallback to split"); | |
1149 | } | |
1150 | } else { | |
1151 | @args = split(/\s*,\s*/, $orig_args); | |
1152 | for (@args) { | |
0f568861 | 1153 | if ($process_inout and s/^(IN|IN_OUTLIST|OUTLIST|IN_OUT|OUT)\s+//) { |
f8b8e0a4 | 1154 | my $out_type = $1; |
63385af5 | 1155 | next if $out_type eq 'IN'; |
08ff138d | 1156 | $only_C_inlist{$_} = 1 if $out_type eq "OUTLIST"; |
0f568861 | 1157 | push @outlist, $name if $out_type =~ /OUTLIST$/; |
f8b8e0a4 GS |
1158 | $in_out{$_} = $out_type; |
1159 | } | |
1160 | } | |
1161 | } | |
a0d0e21e | 1162 | if (defined($class)) { |
683d4eee JL |
1163 | my $arg0 = ((defined($static) or $func_name eq 'new') |
1164 | ? "CLASS" : "THIS"); | |
8e07c86e | 1165 | unshift(@args, $arg0); |
f8b8e0a4 | 1166 | ($report_args = "$arg0, $report_args") =~ s/^\w+, $/$arg0/; |
2304df62 | 1167 | } |
f8b8e0a4 GS |
1168 | my $extra_args = 0; |
1169 | @args_num = (); | |
1170 | $num_args = 0; | |
1171 | my $report_args = ''; | |
1172 | foreach $i (0 .. $#args) { | |
2304df62 AD |
1173 | if ($args[$i] =~ s/\.\.\.//) { |
1174 | $elipsis = 1; | |
f8b8e0a4 GS |
1175 | if ($args[$i] eq '' && $i == $#args) { |
1176 | $report_args .= ", ..."; | |
2304df62 AD |
1177 | pop(@args); |
1178 | last; | |
1179 | } | |
1180 | } | |
08ff138d | 1181 | if ($only_C_inlist{$args[$i]}) { |
f8b8e0a4 GS |
1182 | push @args_num, undef; |
1183 | } else { | |
1184 | push @args_num, ++$num_args; | |
1185 | $report_args .= ", $args[$i]"; | |
1186 | } | |
8e07c86e | 1187 | if ($args[$i] =~ /^([^=]*[^\s=])\s*=\s*(.*)/s) { |
f8b8e0a4 | 1188 | $extra_args++; |
2304df62 AD |
1189 | $args[$i] = $1; |
1190 | $defaults{$args[$i]} = $2; | |
1191 | $defaults{$args[$i]} =~ s/"/\\"/g; | |
1192 | } | |
93d3b392 | 1193 | $proto_arg[$i+1] = "\$" ; |
2304df62 | 1194 | } |
f8b8e0a4 GS |
1195 | $min_args = $num_args - $extra_args; |
1196 | $report_args =~ s/"/\\"/g; | |
1197 | $report_args =~ s/^,\s+//; | |
1198 | my @func_args = @args; | |
1199 | shift @func_args if defined($class); | |
1200 | ||
1201 | for (@func_args) { | |
1202 | s/^/&/ if $in_out{$_}; | |
2304df62 | 1203 | } |
f8b8e0a4 GS |
1204 | $func_args = join(", ", @func_args); |
1205 | @args_match{@args} = @args_num; | |
2304df62 | 1206 | |
8e07c86e | 1207 | $PPCODE = grep(/^\s*PPCODE\s*:/, @line); |
93d3b392 | 1208 | $CODE = grep(/^\s*CODE\s*:/, @line); |
6c5fb52b TB |
1209 | # Detect CODE: blocks which use ST(n)= or XST_m*(n,v) |
1210 | # to set explicit return values. | |
1211 | $EXPLICIT_RETURN = ($CODE && | |
1212 | ("@line" =~ /(\bST\s*\([^;]*=) | (\bXST_m\w+\s*\()/x )); | |
8e07c86e | 1213 | $ALIAS = grep(/^\s*ALIAS\s*:/, @line); |
cfc02341 | 1214 | $INTERFACE = grep(/^\s*INTERFACE\s*:/, @line); |
8e07c86e | 1215 | |
f8b8e0a4 GS |
1216 | $xsreturn = 1 if $EXPLICIT_RETURN; |
1217 | ||
2304df62 | 1218 | # print function header |
a0d0e21e | 1219 | print Q<<"EOF"; |
05ceb97a | 1220 | #XS(XS_${Full_func_name}); /* prototype to pass -Wmissing-prototypes */ |
ff68c719 | 1221 | #XS(XS_${Full_func_name}) |
2304df62 | 1222 | #[[ |
a0d0e21e | 1223 | # dXSARGS; |
93a17b20 | 1224 | EOF |
8e07c86e AD |
1225 | print Q<<"EOF" if $ALIAS ; |
1226 | # dXSI32; | |
1227 | EOF | |
cfc02341 IZ |
1228 | print Q<<"EOF" if $INTERFACE ; |
1229 | # dXSFUNCTION($ret_type); | |
1230 | EOF | |
2304df62 | 1231 | if ($elipsis) { |
8e07c86e | 1232 | $cond = ($min_args ? qq(items < $min_args) : 0); |
2304df62 AD |
1233 | } |
1234 | elsif ($min_args == $num_args) { | |
1235 | $cond = qq(items != $min_args); | |
1236 | } | |
1237 | else { | |
1238 | $cond = qq(items < $min_args || items > $num_args); | |
1239 | } | |
8990e307 | 1240 | |
2304df62 AD |
1241 | print Q<<"EOF" if $except; |
1242 | # char errbuf[1024]; | |
1243 | # *errbuf = '\0'; | |
1244 | EOF | |
1245 | ||
8e07c86e AD |
1246 | if ($ALIAS) |
1247 | { print Q<<"EOF" if $cond } | |
1248 | # if ($cond) | |
f8b8e0a4 | 1249 | # Perl_croak(aTHX_ "Usage: %s($report_args)", GvNAME(CvGV(cv))); |
8e07c86e AD |
1250 | EOF |
1251 | else | |
1252 | { print Q<<"EOF" if $cond } | |
1253 | # if ($cond) | |
f8b8e0a4 | 1254 | # Perl_croak(aTHX_ "Usage: $pname($report_args)"); |
93a17b20 LW |
1255 | EOF |
1256 | ||
349b520e DM |
1257 | #gcc -Wall: if an xsub has no arguments and PPCODE is used |
1258 | #it is likely none of ST, XSRETURN or XSprePUSH macros are used | |
1259 | #hence `ax' (setup by dXSARGS) is unused | |
1260 | #XXX: could breakup the dXSARGS; into dSP;dMARK;dITEMS | |
1261 | #but such a move could break third-party extensions | |
1262 | print Q<<"EOF" if $PPCODE and $num_args == 0; | |
1263 | # PERL_UNUSED_VAR(ax); /* -Wall */ | |
1264 | EOF | |
1265 | ||
a0d0e21e LW |
1266 | print Q<<"EOF" if $PPCODE; |
1267 | # SP -= items; | |
1268 | EOF | |
1269 | ||
2304df62 | 1270 | # Now do a block of some sort. |
93a17b20 | 1271 | |
2304df62 | 1272 | $condnum = 0; |
8e07c86e AD |
1273 | $cond = ''; # last CASE: condidional |
1274 | push(@line, "$END:"); | |
1275 | push(@line_no, $line_no[-1]); | |
1276 | $_ = ''; | |
1277 | &check_cpp; | |
2304df62 | 1278 | while (@line) { |
8e07c86e AD |
1279 | &CASE_handler if check_keyword("CASE"); |
1280 | print Q<<"EOF"; | |
1281 | # $except [[ | |
93a17b20 LW |
1282 | EOF |
1283 | ||
1284 | # do initialization of input variables | |
1285 | $thisdone = 0; | |
1286 | $retvaldone = 0; | |
463ee0b2 | 1287 | $deferred = ""; |
c2960299 AD |
1288 | %arg_list = () ; |
1289 | $gotRETVAL = 0; | |
f06db76b | 1290 | |
8fc38fda | 1291 | INPUT_handler() ; |
54162f5c | 1292 | process_keyword("INPUT|PREINIT|INTERFACE_MACRO|C_ARGS|ALIAS|ATTRS|PROTOTYPE|SCOPE|OVERLOAD") ; |
8fc38fda | 1293 | |
db3b9414 | 1294 | print Q<<"EOF" if $ScopeThisXSUB; |
1295 | # ENTER; | |
1296 | # [[ | |
1297 | EOF | |
1298 | ||
a0d0e21e | 1299 | if (!$thisdone && defined($class)) { |
683d4eee | 1300 | if (defined($static) or $func_name eq 'new') { |
a0d0e21e LW |
1301 | print "\tchar *"; |
1302 | $var_types{"CLASS"} = "char *"; | |
1303 | &generate_init("char *", 1, "CLASS"); | |
1304 | } | |
1305 | else { | |
93a17b20 LW |
1306 | print "\t$class *"; |
1307 | $var_types{"THIS"} = "$class *"; | |
1308 | &generate_init("$class *", 1, "THIS"); | |
a0d0e21e | 1309 | } |
93a17b20 LW |
1310 | } |
1311 | ||
1312 | # do code | |
1313 | if (/^\s*NOT_IMPLEMENTED_YET/) { | |
cea2e8a9 | 1314 | print "\n\tPerl_croak(aTHX_ \"$pname: not implemented yet\");\n"; |
4633a7c4 | 1315 | $_ = '' ; |
93a17b20 LW |
1316 | } else { |
1317 | if ($ret_type ne "void") { | |
ddf6bed1 | 1318 | print "\t" . &map_type($ret_type, 'RETVAL') . ";\n" |
93a17b20 LW |
1319 | if !$retvaldone; |
1320 | $args_match{"RETVAL"} = 0; | |
1321 | $var_types{"RETVAL"} = $ret_type; | |
b26a54d0 GS |
1322 | print "\tdXSTARG;\n" |
1323 | if $WantOptimize and $targetable{$type_kind{$ret_type}}; | |
93a17b20 | 1324 | } |
db3b9414 | 1325 | |
08ff138d IZ |
1326 | if (@fake_INPUT or @fake_INPUT_pre) { |
1327 | unshift @line, @fake_INPUT_pre, @fake_INPUT, $_; | |
f8b8e0a4 GS |
1328 | $_ = ""; |
1329 | $processing_arg_with_types = 1; | |
1330 | INPUT_handler() ; | |
1331 | } | |
8e07c86e | 1332 | print $deferred; |
db3b9414 | 1333 | |
54162f5c | 1334 | process_keyword("INIT|ALIAS|ATTRS|PROTOTYPE|INTERFACE_MACRO|INTERFACE|C_ARGS|OVERLOAD") ; |
8e07c86e AD |
1335 | |
1336 | if (check_keyword("PPCODE")) { | |
8fc38fda | 1337 | print_section(); |
8e07c86e | 1338 | death ("PPCODE must be last thing") if @line; |
db3b9414 | 1339 | print "\tLEAVE;\n" if $ScopeThisXSUB; |
a0d0e21e | 1340 | print "\tPUTBACK;\n\treturn;\n"; |
8e07c86e | 1341 | } elsif (check_keyword("CODE")) { |
8fc38fda | 1342 | print_section() ; |
1343 | } elsif (defined($class) and $func_name eq "DESTROY") { | |
a0d0e21e | 1344 | print "\n\t"; |
8e07c86e | 1345 | print "delete THIS;\n"; |
93a17b20 LW |
1346 | } else { |
1347 | print "\n\t"; | |
1348 | if ($ret_type ne "void") { | |
463ee0b2 | 1349 | print "RETVAL = "; |
e50aee73 | 1350 | $wantRETVAL = 1; |
93a17b20 LW |
1351 | } |
1352 | if (defined($static)) { | |
683d4eee | 1353 | if ($func_name eq 'new') { |
8fc38fda | 1354 | $func_name = "$class"; |
8e07c86e AD |
1355 | } else { |
1356 | print "${class}::"; | |
a0d0e21e | 1357 | } |
93a17b20 | 1358 | } elsif (defined($class)) { |
683d4eee | 1359 | if ($func_name eq 'new') { |
8fc38fda | 1360 | $func_name .= " $class"; |
1361 | } else { | |
93a17b20 | 1362 | print "THIS->"; |
8fc38fda | 1363 | } |
93a17b20 | 1364 | } |
e50aee73 AD |
1365 | $func_name =~ s/^($spat)// |
1366 | if defined($spat); | |
cfc02341 | 1367 | $func_name = 'XSFUNCTION' if $interface; |
93a17b20 | 1368 | print "$func_name($func_args);\n"; |
93a17b20 LW |
1369 | } |
1370 | } | |
1371 | ||
1372 | # do output variables | |
f8b8e0a4 GS |
1373 | $gotRETVAL = 0; # 1 if RETVAL seen in OUTPUT section; |
1374 | undef $RETVAL_code ; # code to set RETVAL (from OUTPUT section); | |
1375 | # $wantRETVAL set if 'RETVAL =' autogenerated | |
1376 | ($wantRETVAL, $ret_type) = (0, 'void') if $RETVAL_no_return; | |
8e07c86e | 1377 | undef %outargs ; |
54162f5c | 1378 | process_keyword("POSTCALL|OUTPUT|ALIAS|ATTRS|PROTOTYPE|OVERLOAD"); |
f06db76b | 1379 | |
0f568861 IZ |
1380 | &generate_output($var_types{$_}, $args_match{$_}, $_, $DoSetMagic) |
1381 | for grep $in_out{$_} =~ /OUT$/, keys %in_out; | |
1382 | ||
f06db76b | 1383 | # all OUTPUT done, so now push the return value on the stack |
8e07c86e AD |
1384 | if ($gotRETVAL && $RETVAL_code) { |
1385 | print "\t$RETVAL_code\n"; | |
1386 | } elsif ($gotRETVAL || $wantRETVAL) { | |
b26a54d0 GS |
1387 | my $t = $WantOptimize && $targetable{$type_kind{$ret_type}}; |
1388 | my $var = 'RETVAL'; | |
1389 | my $type = $ret_type; | |
1390 | ||
1391 | # 0: type, 1: with_size, 2: how, 3: how_size | |
1392 | if ($t and not $t->[1] and $t->[0] eq 'p') { | |
1393 | # PUSHp corresponds to setpvn. Treate setpv directly | |
1394 | my $what = eval qq("$t->[2]"); | |
1395 | warn $@ if $@; | |
1396 | ||
1397 | print "\tsv_setpv(TARG, $what); XSprePUSH; PUSHTARG;\n"; | |
f8b8e0a4 | 1398 | $prepush_done = 1; |
b26a54d0 GS |
1399 | } |
1400 | elsif ($t) { | |
1401 | my $what = eval qq("$t->[2]"); | |
1402 | warn $@ if $@; | |
1403 | ||
1404 | my $size = $t->[3]; | |
1405 | $size = '' unless defined $size; | |
1406 | $size = eval qq("$size"); | |
1407 | warn $@ if $@; | |
1408 | print "\tXSprePUSH; PUSH$t->[0]($what$size);\n"; | |
f8b8e0a4 | 1409 | $prepush_done = 1; |
b26a54d0 GS |
1410 | } |
1411 | else { | |
1412 | # RETVAL almost never needs SvSETMAGIC() | |
1413 | &generate_output($ret_type, 0, 'RETVAL', 0); | |
1414 | } | |
8e07c86e | 1415 | } |
f06db76b | 1416 | |
f8b8e0a4 GS |
1417 | $xsreturn = 1 if $ret_type ne "void"; |
1418 | my $num = $xsreturn; | |
0f568861 | 1419 | my $c = @outlist; |
f8b8e0a4 GS |
1420 | print "\tXSprePUSH;" if $c and not $prepush_done; |
1421 | print "\tEXTEND(SP,$c);\n" if $c; | |
1422 | $xsreturn += $c; | |
0f568861 | 1423 | generate_output($var_types{$_}, $num++, $_, 0, 1) for @outlist; |
f8b8e0a4 | 1424 | |
93a17b20 | 1425 | # do cleanup |
54162f5c | 1426 | process_keyword("CLEANUP|ALIAS|ATTRS|PROTOTYPE|OVERLOAD") ; |
8e07c86e | 1427 | |
db3b9414 | 1428 | print Q<<"EOF" if $ScopeThisXSUB; |
1429 | # ]] | |
1430 | EOF | |
1431 | print Q<<"EOF" if $ScopeThisXSUB and not $PPCODE; | |
1432 | # LEAVE; | |
1433 | EOF | |
1434 | ||
93a17b20 | 1435 | # print function trailer |
8e07c86e | 1436 | print Q<<EOF; |
2304df62 | 1437 | # ]] |
8e07c86e AD |
1438 | EOF |
1439 | print Q<<EOF if $except; | |
8990e307 LW |
1440 | # BEGHANDLERS |
1441 | # CATCHALL | |
1442 | # sprintf(errbuf, "%s: %s\\tpropagated", Xname, Xreason); | |
1443 | # ENDHANDLERS | |
93a17b20 | 1444 | EOF |
8e07c86e AD |
1445 | if (check_keyword("CASE")) { |
1446 | blurt ("Error: No `CASE:' at top of function") | |
1447 | unless $condnum; | |
1448 | $_ = "CASE: $_"; # Restore CASE: label | |
1449 | next; | |
8990e307 | 1450 | } |
8e07c86e AD |
1451 | last if $_ eq "$END:"; |
1452 | death(/^$BLOCK_re/o ? "Misplaced `$1:'" : "Junk at end of function"); | |
2304df62 | 1453 | } |
a0d0e21e | 1454 | |
2304df62 AD |
1455 | print Q<<EOF if $except; |
1456 | # if (errbuf[0]) | |
cea2e8a9 | 1457 | # Perl_croak(aTHX_ errbuf); |
2304df62 | 1458 | EOF |
a0d0e21e | 1459 | |
f8b8e0a4 | 1460 | if ($xsreturn) { |
93d3b392 | 1461 | print Q<<EOF unless $PPCODE; |
f8b8e0a4 | 1462 | # XSRETURN($xsreturn); |
a0d0e21e | 1463 | EOF |
93d3b392 | 1464 | } else { |
1465 | print Q<<EOF unless $PPCODE; | |
1466 | # XSRETURN_EMPTY; | |
1467 | EOF | |
1468 | } | |
a0d0e21e | 1469 | |
2304df62 | 1470 | print Q<<EOF; |
2304df62 | 1471 | #]] |
8990e307 | 1472 | # |
93a17b20 | 1473 | EOF |
382b8d97 | 1474 | |
4230ab3f | 1475 | my $newXS = "newXS" ; |
1476 | my $proto = "" ; | |
1477 | ||
382b8d97 PM |
1478 | # Build the prototype string for the xsub |
1479 | if ($ProtoThisXSUB) { | |
4230ab3f | 1480 | $newXS = "newXSproto"; |
1481 | ||
6f1abe2b | 1482 | if ($ProtoThisXSUB eq 2) { |
4230ab3f | 1483 | # User has specified empty prototype |
1484 | $proto = ', ""' ; | |
1485 | } | |
6f1abe2b | 1486 | elsif ($ProtoThisXSUB ne 1) { |
7d41bd0a | 1487 | # User has specified a prototype |
4230ab3f | 1488 | $proto = ', "' . $ProtoThisXSUB . '"'; |
382b8d97 PM |
1489 | } |
1490 | else { | |
1491 | my $s = ';'; | |
1492 | if ($min_args < $num_args) { | |
1493 | $s = ''; | |
1494 | $proto_arg[$min_args] .= ";" ; | |
1495 | } | |
4230ab3f | 1496 | push @proto_arg, "$s\@" |
382b8d97 PM |
1497 | if $elipsis ; |
1498 | ||
4230ab3f | 1499 | $proto = ', "' . join ("", @proto_arg) . '"'; |
382b8d97 PM |
1500 | } |
1501 | } | |
1502 | ||
4230ab3f | 1503 | if (%XsubAliases) { |
1504 | $XsubAliases{$pname} = 0 | |
1505 | unless defined $XsubAliases{$pname} ; | |
1506 | while ( ($name, $value) = each %XsubAliases) { | |
1507 | push(@InitFileCode, Q<<"EOF"); | |
1508 | # cv = newXS(\"$name\", XS_$Full_func_name, file); | |
1509 | # XSANY.any_i32 = $value ; | |
1510 | EOF | |
1511 | push(@InitFileCode, Q<<"EOF") if $proto; | |
1512 | # sv_setpv((SV*)cv$proto) ; | |
1513 | EOF | |
1514 | } | |
cfc02341 | 1515 | } |
be3174d2 GS |
1516 | elsif (@Attributes) { |
1517 | push(@InitFileCode, Q<<"EOF"); | |
1518 | # cv = newXS(\"$pname\", XS_$Full_func_name, file); | |
1519 | # apply_attrs_string("$Package", cv, "@Attributes", 0); | |
1520 | EOF | |
1521 | } | |
cfc02341 IZ |
1522 | elsif ($interface) { |
1523 | while ( ($name, $value) = each %Interfaces) { | |
1524 | $name = "$Package\::$name" unless $name =~ /::/; | |
1525 | push(@InitFileCode, Q<<"EOF"); | |
1526 | # cv = newXS(\"$name\", XS_$Full_func_name, file); | |
1527 | # $interface_macro_set(cv,$value) ; | |
1528 | EOF | |
1529 | push(@InitFileCode, Q<<"EOF") if $proto; | |
1530 | # sv_setpv((SV*)cv$proto) ; | |
1531 | EOF | |
1532 | } | |
4230ab3f | 1533 | } |
1534 | else { | |
1535 | push(@InitFileCode, | |
1536 | " ${newXS}(\"$pname\", XS_$Full_func_name, file$proto);\n"); | |
1537 | } | |
93a17b20 LW |
1538 | } |
1539 | ||
1540 | # print initialization routine | |
7ee8c957 | 1541 | |
e3b8966e | 1542 | print Q<<"EOF"; |
e3b8966e GS |
1543 | ##ifdef __cplusplus |
1544 | #extern "C" | |
1545 | ##endif | |
7ee8c957 GS |
1546 | EOF |
1547 | ||
8990e307 | 1548 | print Q<<"EOF"; |
05ceb97a | 1549 | #XS(boot_$Module_cname); /* prototype to pass -Wmissing-prototypes */ |
a0d0e21e | 1550 | #XS(boot_$Module_cname) |
7ee8c957 GS |
1551 | EOF |
1552 | ||
7ee8c957 | 1553 | print Q<<"EOF"; |
2304df62 | 1554 | #[[ |
a0d0e21e | 1555 | # dXSARGS; |
c6c619a9 DM |
1556 | EOF |
1557 | ||
1558 | #-Wall: if there is no $Full_func_name there are no xsubs in this .xs | |
1559 | #so `file' is unused | |
1560 | print Q<<"EOF" if $Full_func_name; | |
8990e307 | 1561 | # char* file = __FILE__; |
93a17b20 LW |
1562 | EOF |
1563 | ||
c6c619a9 DM |
1564 | print Q "#\n"; |
1565 | ||
8fc38fda | 1566 | print Q<<"EOF" if $WantVersionChk ; |
1567 | # XS_VERSION_BOOTCHECK ; | |
1568 | # | |
1569 | EOF | |
1570 | ||
cfc02341 | 1571 | print Q<<"EOF" if defined $XsubAliases or defined $Interfaces ; |
8e07c86e AD |
1572 | # { |
1573 | # CV * cv ; | |
1574 | # | |
1575 | EOF | |
1576 | ||
54162f5c JP |
1577 | print Q<<"EOF" if ($Overload); |
1578 | # { | |
1579 | # /* create the package stash */ | |
1580 | # HV *hv = get_hv(\"$Package\::OVERLOAD\",TRUE); | |
1581 | # SV *sv = *hv_fetch(hv,"register",8,1); | |
1582 | # sv_inc(sv); | |
1583 | # SvSETMAGIC(sv); | |
1584 | # /* Make it findable via fetchmethod */ | |
1585 | # newXS(\"$Package\::()\", NULL, file); | |
1586 | # } | |
1587 | EOF | |
1588 | ||
4230ab3f | 1589 | print @InitFileCode; |
a0d0e21e | 1590 | |
cfc02341 | 1591 | print Q<<"EOF" if defined $XsubAliases or defined $Interfaces ; |
8e07c86e AD |
1592 | # } |
1593 | EOF | |
1594 | ||
a0d0e21e LW |
1595 | if (@BootCode) |
1596 | { | |
6f1abe2b JT |
1597 | print "\n /* Initialisation Section */\n\n" ; |
1598 | @line = @BootCode; | |
1599 | print_section(); | |
8e07c86e | 1600 | print "\n /* End of Initialisation Section */\n\n" ; |
93a17b20 | 1601 | } |
a0d0e21e | 1602 | |
e50aee73 | 1603 | print Q<<"EOF";; |
3280af22 | 1604 | # XSRETURN_YES; |
e50aee73 | 1605 | #]] |
e3b8966e GS |
1606 | # |
1607 | EOF | |
1608 | ||
8fc38fda | 1609 | warn("Please specify prototyping behavior for $filename (see perlxs manual)\n") |
1610 | unless $ProtoUsed ; | |
e50aee73 AD |
1611 | &Exit; |
1612 | ||
93a17b20 | 1613 | sub output_init { |
ddf6bed1 | 1614 | local($type, $num, $var, $init, $name_printed) = @_; |
a0d0e21e | 1615 | local($arg) = "ST(" . ($num - 1) . ")"; |
93a17b20 | 1616 | |
7ad6fb0b | 1617 | if( $init =~ /^=/ ) { |
ddf6bed1 IZ |
1618 | if ($name_printed) { |
1619 | eval qq/print " $init\\n"/; | |
1620 | } else { | |
1621 | eval qq/print "\\t$var $init\\n"/; | |
1622 | } | |
7ad6fb0b TM |
1623 | warn $@ if $@; |
1624 | } else { | |
1625 | if( $init =~ s/^\+// && $num ) { | |
ddf6bed1 IZ |
1626 | &generate_init($type, $num, $var, $name_printed); |
1627 | } elsif ($name_printed) { | |
1628 | print ";\n"; | |
1629 | $init =~ s/^;//; | |
7ad6fb0b TM |
1630 | } else { |
1631 | eval qq/print "\\t$var;\\n"/; | |
1632 | warn $@ if $@; | |
1633 | $init =~ s/^;//; | |
1634 | } | |
1635 | $deferred .= eval qq/"\\n\\t$init\\n"/; | |
1636 | warn $@ if $@; | |
1637 | } | |
93a17b20 LW |
1638 | } |
1639 | ||
c2960299 AD |
1640 | sub Warn |
1641 | { | |
1642 | # work out the line number | |
1643 | my $line_no = $line_no[@line_no - @line -1] ; | |
1644 | ||
1645 | print STDERR "@_ in $filename, line $line_no\n" ; | |
1646 | } | |
1647 | ||
1648 | sub blurt | |
1649 | { | |
1650 | Warn @_ ; | |
1651 | $errors ++ | |
1652 | } | |
1653 | ||
1654 | sub death | |
1655 | { | |
1656 | Warn @_ ; | |
1657 | exit 1 ; | |
1658 | } | |
8990e307 | 1659 | |
93a17b20 | 1660 | sub generate_init { |
2304df62 | 1661 | local($type, $num, $var) = @_; |
a0d0e21e | 1662 | local($arg) = "ST(" . ($num - 1) . ")"; |
2304df62 AD |
1663 | local($argoff) = $num - 1; |
1664 | local($ntype); | |
1665 | local($tk); | |
93a17b20 | 1666 | |
f06db76b | 1667 | $type = TidyType($type) ; |
c2960299 AD |
1668 | blurt("Error: '$type' not in typemap"), return |
1669 | unless defined($type_kind{$type}); | |
1670 | ||
2304df62 | 1671 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
8e07c86e | 1672 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 AD |
1673 | $tk = $type_kind{$type}; |
1674 | $tk =~ s/OBJ$/REF/ if $func_name =~ /DESTROY$/; | |
08ff138d IZ |
1675 | if ($tk eq 'T_PV' and exists $lengthof{$var}) { |
1676 | print "\t$var" unless $name_printed; | |
1677 | print " = ($type)SvPV($arg, STRLEN_length_of_$var);\n"; | |
1678 | die "default value not supported with length(NAME) supplied" | |
1679 | if defined $defaults{$var}; | |
1680 | return; | |
1681 | } | |
8e07c86e | 1682 | $type =~ tr/:/_/; |
615ca1f4 | 1683 | blurt("Error: No INPUT definition for type '$type', typekind '$type_kind{$type}' found"), return |
c2960299 | 1684 | unless defined $input_expr{$tk} ; |
2304df62 AD |
1685 | $expr = $input_expr{$tk}; |
1686 | if ($expr =~ /DO_ARRAY_ELEM/) { | |
c2960299 AD |
1687 | blurt("Error: '$subtype' not in typemap"), return |
1688 | unless defined($type_kind{$subtype}); | |
615ca1f4 | 1689 | blurt("Error: No INPUT definition for type '$subtype', typekind '$type_kind{$subtype}' found"), return |
c2960299 | 1690 | unless defined $input_expr{$type_kind{$subtype}} ; |
2304df62 | 1691 | $subexpr = $input_expr{$type_kind{$subtype}}; |
f8c11764 | 1692 | $subexpr =~ s/\$type/\$subtype/g; |
2304df62 AD |
1693 | $subexpr =~ s/ntype/subtype/g; |
1694 | $subexpr =~ s/\$arg/ST(ix_$var)/g; | |
1695 | $subexpr =~ s/\n\t/\n\t\t/g; | |
93d3b392 | 1696 | $subexpr =~ s/is not of (.*\")/[arg %d] is not of $1, ix_$var + 1/g; |
a0d0e21e | 1697 | $subexpr =~ s/\$var/${var}[ix_$var - $argoff]/; |
2304df62 AD |
1698 | $expr =~ s/DO_ARRAY_ELEM/$subexpr/; |
1699 | } | |
db3b9414 | 1700 | if ($expr =~ m#/\*.*scope.*\*/#i) { # "scope" in C comments |
1701 | $ScopeThisXSUB = 1; | |
1702 | } | |
2304df62 AD |
1703 | if (defined($defaults{$var})) { |
1704 | $expr =~ s/(\t+)/$1 /g; | |
1705 | $expr =~ s/ /\t/g; | |
ddf6bed1 IZ |
1706 | if ($name_printed) { |
1707 | print ";\n"; | |
1708 | } else { | |
1709 | eval qq/print "\\t$var;\\n"/; | |
1710 | warn $@ if $@; | |
1711 | } | |
a104f515 | 1712 | if ($defaults{$var} eq 'NO_INIT') { |
4628e4f8 GS |
1713 | $deferred .= eval qq/"\\n\\tif (items >= $num) {\\n$expr;\\n\\t}\\n"/; |
1714 | } else { | |
1715 | $deferred .= eval qq/"\\n\\tif (items < $num)\\n\\t $var = $defaults{$var};\\n\\telse {\\n$expr;\\n\\t}\\n"/; | |
1716 | } | |
7ad6fb0b | 1717 | warn $@ if $@; |
08ff138d | 1718 | } elsif ($ScopeThisXSUB or $expr !~ /^\s*\$var =/) { |
ddf6bed1 IZ |
1719 | if ($name_printed) { |
1720 | print ";\n"; | |
1721 | } else { | |
1722 | eval qq/print "\\t$var;\\n"/; | |
1723 | warn $@ if $@; | |
1724 | } | |
2304df62 | 1725 | $deferred .= eval qq/"\\n$expr;\\n"/; |
7ad6fb0b | 1726 | warn $@ if $@; |
2304df62 | 1727 | } else { |
ddf6bed1 IZ |
1728 | die "panic: do not know how to handle this branch for function pointers" |
1729 | if $name_printed; | |
2304df62 | 1730 | eval qq/print "$expr;\\n"/; |
7ad6fb0b | 1731 | warn $@ if $@; |
2304df62 | 1732 | } |
93a17b20 LW |
1733 | } |
1734 | ||
1735 | sub generate_output { | |
f8b8e0a4 | 1736 | local($type, $num, $var, $do_setmagic, $do_push) = @_; |
a0d0e21e | 1737 | local($arg) = "ST(" . ($num - ($num != 0)) . ")"; |
2304df62 AD |
1738 | local($argoff) = $num - 1; |
1739 | local($ntype); | |
93a17b20 | 1740 | |
f06db76b | 1741 | $type = TidyType($type) ; |
2304df62 | 1742 | if ($type =~ /^array\(([^,]*),(.*)\)/) { |
f8c11764 | 1743 | print "\t$arg = sv_newmortal();\n"; |
4bd3d083 | 1744 | print "\tsv_setpvn($arg, (char *)$var, $2 * sizeof($1));\n"; |
ef50df4b | 1745 | print "\tSvSETMAGIC($arg);\n" if $do_setmagic; |
2304df62 | 1746 | } else { |
f06db76b | 1747 | blurt("Error: '$type' not in typemap"), return |
2304df62 | 1748 | unless defined($type_kind{$type}); |
615ca1f4 | 1749 | blurt("Error: No OUTPUT definition for type '$type', typekind '$type_kind{$type}' found"), return |
c2960299 | 1750 | unless defined $output_expr{$type_kind{$type}} ; |
2304df62 AD |
1751 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
1752 | $ntype =~ s/\(\)//g; | |
8e07c86e | 1753 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 AD |
1754 | $expr = $output_expr{$type_kind{$type}}; |
1755 | if ($expr =~ /DO_ARRAY_ELEM/) { | |
c2960299 AD |
1756 | blurt("Error: '$subtype' not in typemap"), return |
1757 | unless defined($type_kind{$subtype}); | |
615ca1f4 | 1758 | blurt("Error: No OUTPUT definition for type '$subtype', typekind '$type_kind{$subtype}' found"), return |
c2960299 | 1759 | unless defined $output_expr{$type_kind{$subtype}} ; |
2304df62 AD |
1760 | $subexpr = $output_expr{$type_kind{$subtype}}; |
1761 | $subexpr =~ s/ntype/subtype/g; | |
1762 | $subexpr =~ s/\$arg/ST(ix_$var)/g; | |
1763 | $subexpr =~ s/\$var/${var}[ix_$var]/g; | |
1764 | $subexpr =~ s/\n\t/\n\t\t/g; | |
1765 | $expr =~ s/DO_ARRAY_ELEM\n/$subexpr/; | |
a0d0e21e | 1766 | eval "print qq\a$expr\a"; |
7ad6fb0b | 1767 | warn $@ if $@; |
ef50df4b | 1768 | print "\t\tSvSETMAGIC(ST(ix_$var));\n" if $do_setmagic; |
2304df62 | 1769 | } |
a0d0e21e | 1770 | elsif ($var eq 'RETVAL') { |
a2baab1c IZ |
1771 | if ($expr =~ /^\t\$arg = new/) { |
1772 | # We expect that $arg has refcnt 1, so we need to | |
1773 | # mortalize it. | |
a0d0e21e | 1774 | eval "print qq\a$expr\a"; |
7ad6fb0b | 1775 | warn $@ if $@; |
f8b8e0a4 GS |
1776 | print "\tsv_2mortal(ST($num));\n"; |
1777 | print "\tSvSETMAGIC(ST($num));\n" if $do_setmagic; | |
93a17b20 | 1778 | } |
a2baab1c IZ |
1779 | elsif ($expr =~ /^\s*\$arg\s*=/) { |
1780 | # We expect that $arg has refcnt >=1, so we need | |
d689ffdd | 1781 | # to mortalize it! |
a2baab1c | 1782 | eval "print qq\a$expr\a"; |
7ad6fb0b | 1783 | warn $@ if $@; |
d689ffdd | 1784 | print "\tsv_2mortal(ST(0));\n"; |
ef50df4b | 1785 | print "\tSvSETMAGIC(ST(0));\n" if $do_setmagic; |
a2baab1c | 1786 | } |
2304df62 | 1787 | else { |
a2baab1c IZ |
1788 | # Just hope that the entry would safely write it |
1789 | # over an already mortalized value. By | |
1790 | # coincidence, something like $arg = &sv_undef | |
1791 | # works too. | |
8990e307 | 1792 | print "\tST(0) = sv_newmortal();\n"; |
a0d0e21e | 1793 | eval "print qq\a$expr\a"; |
7ad6fb0b | 1794 | warn $@ if $@; |
ef50df4b | 1795 | # new mortals don't have set magic |
463ee0b2 | 1796 | } |
2304df62 | 1797 | } |
f8b8e0a4 GS |
1798 | elsif ($do_push) { |
1799 | print "\tPUSHs(sv_newmortal());\n"; | |
1800 | $arg = "ST($num)"; | |
1801 | eval "print qq\a$expr\a"; | |
1802 | warn $@ if $@; | |
1803 | print "\tSvSETMAGIC($arg);\n" if $do_setmagic; | |
1804 | } | |
a0d0e21e LW |
1805 | elsif ($arg =~ /^ST\(\d+\)$/) { |
1806 | eval "print qq\a$expr\a"; | |
7ad6fb0b | 1807 | warn $@ if $@; |
ef50df4b | 1808 | print "\tSvSETMAGIC($arg);\n" if $do_setmagic; |
a0d0e21e | 1809 | } |
2304df62 | 1810 | } |
93a17b20 LW |
1811 | } |
1812 | ||
1813 | sub map_type { | |
ddf6bed1 | 1814 | my($type, $varname) = @_; |
93a17b20 | 1815 | |
8e07c86e AD |
1816 | $type =~ tr/:/_/; |
1817 | $type =~ s/^array\(([^,]*),(.*)\).*/$1 */s; | |
ddf6bed1 IZ |
1818 | if ($varname) { |
1819 | if ($varname && $type =~ / \( \s* \* (?= \s* \) ) /xg) { | |
1820 | (substr $type, pos $type, 0) = " $varname "; | |
1821 | } else { | |
1822 | $type .= "\t$varname"; | |
1823 | } | |
1824 | } | |
8e07c86e | 1825 | $type; |
93a17b20 | 1826 | } |
8990e307 | 1827 | |
e50aee73 AD |
1828 | |
1829 | sub Exit { | |
ff0cee69 | 1830 | # If this is VMS, the exit status has meaning to the shell, so we |
1831 | # use a predictable value (SS$_Normal or SS$_Abort) rather than an | |
1832 | # arbitrary number. | |
1833 | # exit ($Is_VMS ? ($errors ? 44 : 1) : $errors) ; | |
1834 | exit ($errors ? 1 : 0); | |
e50aee73 | 1835 | } |