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 ; |
11416672 GS |
135 | |
136 | my $process_inout = 1; | |
137 | my $process_argtypes = 1; | |
138 | ||
8e07c86e | 139 | SWITCH: while (@ARGV and $ARGV[0] =~ /^-./) { |
93a17b20 | 140 | $flag = shift @ARGV; |
e50aee73 | 141 | $flag =~ s/^-// ; |
ff68c719 | 142 | $spat = quotemeta shift, next SWITCH if $flag eq 's'; |
8990e307 | 143 | $cplusplus = 1, next SWITCH if $flag eq 'C++'; |
382b8d97 PM |
144 | $WantPrototypes = 0, next SWITCH if $flag eq 'noprototypes'; |
145 | $WantPrototypes = 1, next SWITCH if $flag eq 'prototypes'; | |
8fc38fda | 146 | $WantVersionChk = 0, next SWITCH if $flag eq 'noversioncheck'; |
147 | $WantVersionChk = 1, next SWITCH if $flag eq 'versioncheck'; | |
c5be433b | 148 | # XXX left this in for compat |
acfe0abc | 149 | next SWITCH if $flag eq 'object_capi'; |
8e07c86e | 150 | $except = " TRY", next SWITCH if $flag eq 'except'; |
8990e307 | 151 | push(@tm,shift), next SWITCH if $flag eq 'typemap'; |
6f1abe2b JT |
152 | $WantLineNumbers = 0, next SWITCH if $flag eq 'nolinenumbers'; |
153 | $WantLineNumbers = 1, next SWITCH if $flag eq 'linenumbers'; | |
b26a54d0 GS |
154 | $WantOptimize = 0, next SWITCH if $flag eq 'nooptimize'; |
155 | $WantOptimize = 1, next SWITCH if $flag eq 'optimize'; | |
11416672 GS |
156 | $process_inout = 0, next SWITCH if $flag eq 'noinout'; |
157 | $process_inout = 1, next SWITCH if $flag eq 'inout'; | |
158 | $process_argtypes = 0, next SWITCH if $flag eq 'noargtypes'; | |
159 | $process_argtypes = 1, next SWITCH if $flag eq 'argtypes'; | |
b26a54d0 | 160 | (print "xsubpp version $XSUBPP_version\n"), exit |
8e07c86e | 161 | if $flag eq 'v'; |
93a17b20 LW |
162 | die $usage; |
163 | } | |
8fc38fda | 164 | if ($WantPrototypes == -1) |
165 | { $WantPrototypes = 0} | |
166 | else | |
167 | { $ProtoUsed = 1 } | |
168 | ||
169 | ||
8990e307 | 170 | @ARGV == 1 or die $usage; |
c2960299 | 171 | ($dir, $filename) = $ARGV[0] =~ m#(.*)/(.*)# |
57497940 | 172 | or ($dir, $filename) = $ARGV[0] =~ m#(.*)\\(.*)# |
c2960299 | 173 | or ($dir, $filename) = $ARGV[0] =~ m#(.*[>\]])(.*)# |
8990e307 LW |
174 | or ($dir, $filename) = ('.', $ARGV[0]); |
175 | chdir($dir); | |
774d564b | 176 | $pwd = cwd(); |
8fc38fda | 177 | |
178 | ++ $IncludedFiles{$ARGV[0]} ; | |
93a17b20 | 179 | |
4230ab3f | 180 | my(@XSStack) = ({type => 'none'}); # Stack of conditionals and INCLUDEs |
181 | my($XSS_work_idx, $cpp_next_tmp) = (0, "XSubPPtmpAAAA"); | |
aa689395 | 182 | |
4230ab3f | 183 | |
f06db76b AD |
184 | sub TrimWhitespace |
185 | { | |
186 | $_[0] =~ s/^\s+|\s+$//go ; | |
187 | } | |
188 | ||
189 | sub TidyType | |
190 | { | |
191 | local ($_) = @_ ; | |
192 | ||
193 | # rationalise any '*' by joining them into bunches and removing whitespace | |
194 | s#\s*(\*+)\s*#$1#g; | |
e50aee73 | 195 | s#(\*+)# $1 #g ; |
f06db76b AD |
196 | |
197 | # change multiple whitespace into a single space | |
198 | s/\s+/ /g ; | |
199 | ||
200 | # trim leading & trailing whitespace | |
201 | TrimWhitespace($_) ; | |
202 | ||
203 | $_ ; | |
204 | } | |
205 | ||
93a17b20 | 206 | $typemap = shift @ARGV; |
8990e307 LW |
207 | foreach $typemap (@tm) { |
208 | die "Can't find $typemap in $pwd\n" unless -r $typemap; | |
93a17b20 | 209 | } |
748a9306 LW |
210 | unshift @tm, qw(../../../../lib/ExtUtils/typemap ../../../lib/ExtUtils/typemap |
211 | ../../lib/ExtUtils/typemap ../../../typemap ../../typemap | |
212 | ../typemap typemap); | |
8990e307 | 213 | foreach $typemap (@tm) { |
dd713d92 | 214 | next unless -f $typemap ; |
f06db76b AD |
215 | # skip directories, binary files etc. |
216 | warn("Warning: ignoring non-text typemap file '$typemap'\n"), next | |
217 | unless -T $typemap ; | |
218 | open(TYPEMAP, $typemap) | |
219 | or warn ("Warning: could not open typemap file '$typemap': $!\n"), next; | |
e50aee73 | 220 | $mode = 'Typemap'; |
c2960299 | 221 | $junk = "" ; |
8990e307 LW |
222 | $current = \$junk; |
223 | while (<TYPEMAP>) { | |
e50aee73 | 224 | next if /^\s*#/; |
e1f0c0aa | 225 | my $line_no = $. + 1; |
8e07c86e AD |
226 | if (/^INPUT\s*$/) { $mode = 'Input'; $current = \$junk; next; } |
227 | if (/^OUTPUT\s*$/) { $mode = 'Output'; $current = \$junk; next; } | |
228 | if (/^TYPEMAP\s*$/) { $mode = 'Typemap'; $current = \$junk; next; } | |
e50aee73 AD |
229 | if ($mode eq 'Typemap') { |
230 | chomp; | |
f06db76b AD |
231 | my $line = $_ ; |
232 | TrimWhitespace($_) ; | |
233 | # skip blank lines and comment lines | |
234 | next if /^$/ or /^#/ ; | |
382b8d97 PM |
235 | my($type,$kind, $proto) = /^\s*(.*?\S)\s+(\S+)\s*($proto_re*)\s*$/ or |
236 | warn("Warning: File '$typemap' Line $. '$line' TYPEMAP entry needs 2 or 3 columns\n"), next; | |
237 | $type = TidyType($type) ; | |
238 | $type_kind{$type} = $kind ; | |
239 | # prototype defaults to '$' | |
93d3b392 | 240 | $proto = "\$" unless $proto ; |
382b8d97 PM |
241 | warn("Warning: File '$typemap' Line $. '$line' Invalid prototype '$proto'\n") |
242 | unless ValidProtoString($proto) ; | |
243 | $proto_letter{$type} = C_string($proto) ; | |
8e07c86e AD |
244 | } |
245 | elsif (/^\s/) { | |
246 | $$current .= $_; | |
463ee0b2 | 247 | } |
e50aee73 | 248 | elsif ($mode eq 'Input') { |
8e07c86e AD |
249 | s/\s+$//; |
250 | $input_expr{$_} = ''; | |
251 | $current = \$input_expr{$_}; | |
93a17b20 | 252 | } |
8990e307 | 253 | else { |
8e07c86e AD |
254 | s/\s+$//; |
255 | $output_expr{$_} = ''; | |
256 | $current = \$output_expr{$_}; | |
93a17b20 | 257 | } |
8990e307 LW |
258 | } |
259 | close(TYPEMAP); | |
260 | } | |
93a17b20 | 261 | |
8990e307 LW |
262 | foreach $key (keys %input_expr) { |
263 | $input_expr{$key} =~ s/\n+$//; | |
264 | } | |
93a17b20 | 265 | |
14455d6c | 266 | $bal = qr[(?:(?>[^()]+)|\((??{ $bal })\))*]; # ()-balanced |
b26a54d0 | 267 | $cast = qr[(?:\(\s*SV\s*\*\s*\)\s*)?]; # Optional (SV*) cast |
14455d6c | 268 | $size = qr[,\s* (??{ $bal }) ]x; # Third arg (to setpvn) |
b26a54d0 GS |
269 | |
270 | foreach $key (keys %output_expr) { | |
271 | use re 'eval'; | |
272 | ||
273 | my ($t, $with_size, $arg, $sarg) = | |
274 | ($output_expr{$key} =~ | |
438cc608 | 275 | m[^ \s+ sv_set ( [iunp] ) v (n)? # Type, is_setpvn |
b26a54d0 | 276 | \s* \( \s* $cast \$arg \s* , |
14455d6c GS |
277 | \s* ( (??{ $bal }) ) # Set from |
278 | ( (??{ $size }) )? # Possible sizeof set-from | |
b26a54d0 GS |
279 | \) \s* ; \s* $ |
280 | ]x); | |
281 | $targetable{$key} = [$t, $with_size, $arg, $sarg] if $t; | |
282 | } | |
283 | ||
8e07c86e AD |
284 | $END = "!End!\n\n"; # "impossible" keyword (multiple newline) |
285 | ||
286 | # Match an XS keyword | |
382b8d97 PM |
287 | $BLOCK_re= '\s*(' . join('|', qw( |
288 | REQUIRE BOOT CASE PREINIT INPUT INIT CODE PPCODE OUTPUT | |
be3174d2 | 289 | CLEANUP ALIAS ATTRS PROTOTYPES PROTOTYPE VERSIONCHECK INCLUDE |
63385af5 | 290 | SCOPE INTERFACE INTERFACE_MACRO C_ARGS POSTCALL |
382b8d97 | 291 | )) . "|$END)\\s*:"; |
8e07c86e AD |
292 | |
293 | # Input: ($_, @line) == unparsed input. | |
294 | # Output: ($_, @line) == (rest of line, following lines). | |
295 | # Return: the matched keyword if found, otherwise 0 | |
296 | sub check_keyword { | |
297 | $_ = shift(@line) while !/\S/ && @line; | |
298 | s/^(\s*)($_[0])\s*:\s*(?:#.*)?/$1/s && $2; | |
299 | } | |
300 | ||
efbca139 | 301 | my ($C_group_rex, $C_arg); |
f8b8e0a4 GS |
302 | # Group in C (no support for comments or literals) |
303 | $C_group_rex = qr/ [({\[] | |
14455d6c | 304 | (?: (?> [^()\[\]{}]+ ) | (??{ $C_group_rex }) )* |
f8b8e0a4 GS |
305 | [)}\]] /x ; |
306 | # Chunk in C without comma at toplevel (no comments): | |
307 | $C_arg = qr/ (?: (?> [^()\[\]{},"']+ ) | |
14455d6c | 308 | | (??{ $C_group_rex }) |
f8b8e0a4 GS |
309 | | " (?: (?> [^\\"]+ ) |
310 | | \\. | |
311 | )* " # String literal | |
312 | | ' (?: (?> [^\\']+ ) | \\. )* ' # Char literal | |
313 | )* /xs; | |
8e07c86e | 314 | |
6f1abe2b JT |
315 | if ($WantLineNumbers) { |
316 | { | |
317 | package xsubpp::counter; | |
318 | sub TIEHANDLE { | |
319 | my ($class, $cfile) = @_; | |
320 | my $buf = ""; | |
321 | $SECTION_END_MARKER = "#line --- \"$cfile\""; | |
322 | $line_no = 1; | |
323 | bless \$buf; | |
324 | } | |
325 | ||
326 | sub PRINT { | |
327 | my $self = shift; | |
328 | for (@_) { | |
329 | $$self .= $_; | |
330 | while ($$self =~ s/^([^\n]*\n)//) { | |
331 | my $line = $1; | |
332 | ++ $line_no; | |
333 | $line =~ s|^\#line\s+---(?=\s)|#line $line_no|; | |
334 | print STDOUT $line; | |
335 | } | |
336 | } | |
337 | } | |
338 | ||
339 | sub PRINTF { | |
340 | my $self = shift; | |
341 | my $fmt = shift; | |
342 | $self->PRINT(sprintf($fmt, @_)); | |
343 | } | |
344 | ||
345 | sub DESTROY { | |
346 | # Not necessary if we're careful to end with a "\n" | |
347 | my $self = shift; | |
348 | print STDOUT $$self; | |
349 | } | |
350 | } | |
351 | ||
352 | my $cfile = $filename; | |
353 | $cfile =~ s/\.xs$/.c/i or $cfile .= ".c"; | |
354 | tie(*PSEUDO_STDOUT, 'xsubpp::counter', $cfile); | |
355 | select PSEUDO_STDOUT; | |
356 | } | |
357 | ||
8e07c86e | 358 | sub print_section { |
6f1abe2b JT |
359 | # the "do" is required for right semantics |
360 | do { $_ = shift(@line) } while !/\S/ && @line; | |
361 | ||
362 | print("#line ", $line_no[@line_no - @line -1], " \"$filename\"\n") | |
d3308daf | 363 | if $WantLineNumbers && !/^\s*#\s*line\b/ && !/^#if XSubPPtmp/; |
8e07c86e AD |
364 | for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) { |
365 | print "$_\n"; | |
366 | } | |
6f1abe2b | 367 | print "$xsubpp::counter::SECTION_END_MARKER\n" if $WantLineNumbers; |
8e07c86e AD |
368 | } |
369 | ||
cfc02341 IZ |
370 | sub merge_section { |
371 | my $in = ''; | |
372 | ||
373 | while (!/\S/ && @line) { | |
374 | $_ = shift(@line); | |
375 | } | |
376 | ||
377 | for (; defined($_) && !/^$BLOCK_re/o; $_ = shift(@line)) { | |
378 | $in .= "$_\n"; | |
379 | } | |
380 | chomp $in; | |
381 | return $in; | |
382 | } | |
383 | ||
8fc38fda | 384 | sub process_keyword($) |
385 | { | |
386 | my($pattern) = @_ ; | |
387 | my $kwd ; | |
388 | ||
389 | &{"${kwd}_handler"}() | |
390 | while $kwd = check_keyword($pattern) ; | |
391 | } | |
392 | ||
8e07c86e AD |
393 | sub CASE_handler { |
394 | blurt ("Error: `CASE:' after unconditional `CASE:'") | |
395 | if $condnum && $cond eq ''; | |
396 | $cond = $_; | |
397 | TrimWhitespace($cond); | |
398 | print " ", ($condnum++ ? " else" : ""), ($cond ? " if ($cond)\n" : "\n"); | |
399 | $_ = '' ; | |
400 | } | |
401 | ||
402 | sub INPUT_handler { | |
403 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { | |
404 | last if /^\s*NOT_IMPLEMENTED_YET/; | |
405 | next unless /\S/; # skip blank lines | |
406 | ||
407 | TrimWhitespace($_) ; | |
408 | my $line = $_ ; | |
409 | ||
410 | # remove trailing semicolon if no initialisation | |
7ad6fb0b | 411 | s/\s*;$//g unless /[=;+].*\S/ ; |
8e07c86e AD |
412 | |
413 | # check for optional initialisation code | |
414 | my $var_init = '' ; | |
7ad6fb0b | 415 | $var_init = $1 if s/\s*([=;+].*)$//s ; |
8e07c86e AD |
416 | $var_init =~ s/"/\\"/g; |
417 | ||
418 | s/\s+/ /g; | |
0f568861 | 419 | my ($var_type, $var_addr, $var_name) = /^(.*?[^&\s])\s*(\&?)\s*\b(\w+)$/s |
8e07c86e AD |
420 | or blurt("Error: invalid argument declaration '$line'"), next; |
421 | ||
422 | # Check for duplicate definitions | |
423 | blurt ("Error: duplicate definition of argument '$var_name' ignored"), next | |
f8b8e0a4 GS |
424 | if $arg_list{$var_name}++ |
425 | or defined $arg_types{$var_name} and not $processing_arg_with_types; | |
8e07c86e AD |
426 | |
427 | $thisdone |= $var_name eq "THIS"; | |
428 | $retvaldone |= $var_name eq "RETVAL"; | |
429 | $var_types{$var_name} = $var_type; | |
ddf6bed1 IZ |
430 | # XXXX This check is a safeguard against the unfinished conversion of |
431 | # generate_init(). When generate_init() is fixed, | |
432 | # one can use 2-args map_type() unconditionally. | |
433 | if ($var_type =~ / \( \s* \* \s* \) /x) { | |
434 | # Function pointers are not yet supported with &output_init! | |
435 | print "\t" . &map_type($var_type, $var_name); | |
436 | $name_printed = 1; | |
437 | } else { | |
438 | print "\t" . &map_type($var_type); | |
439 | $name_printed = 0; | |
440 | } | |
8e07c86e | 441 | $var_num = $args_match{$var_name}; |
382b8d97 | 442 | |
8fc38fda | 443 | $proto_arg[$var_num] = ProtoString($var_type) |
444 | if $var_num ; | |
0f568861 | 445 | $func_args =~ s/\b($var_name)\b/&$1/ if $var_addr; |
f8b8e0a4 | 446 | if ($var_init =~ /^[=;]\s*NO_INIT\s*;?\s*$/ |
0f568861 | 447 | or $in_out{$var_name} and $in_out{$var_name} =~ /^OUT/ |
f8b8e0a4 | 448 | and $var_init !~ /\S/) { |
ddf6bed1 IZ |
449 | if ($name_printed) { |
450 | print ";\n"; | |
451 | } else { | |
9bea678f | 452 | print "\t$var_name;\n"; |
ddf6bed1 | 453 | } |
8e07c86e | 454 | } elsif ($var_init =~ /\S/) { |
ddf6bed1 | 455 | &output_init($var_type, $var_num, $var_name, $var_init, $name_printed); |
8e07c86e AD |
456 | } elsif ($var_num) { |
457 | # generate initialization code | |
ddf6bed1 | 458 | &generate_init($var_type, $var_num, $var_name, $name_printed); |
8e07c86e AD |
459 | } else { |
460 | print ";\n"; | |
461 | } | |
462 | } | |
463 | } | |
464 | ||
465 | sub OUTPUT_handler { | |
466 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { | |
467 | next unless /\S/; | |
ef50df4b GS |
468 | if (/^\s*SETMAGIC\s*:\s*(ENABLE|DISABLE)\s*/) { |
469 | $DoSetMagic = ($1 eq "ENABLE" ? 1 : 0); | |
470 | next; | |
471 | } | |
8e07c86e AD |
472 | my ($outarg, $outcode) = /^\s*(\S+)\s*(.*?)\s*$/s ; |
473 | blurt ("Error: duplicate OUTPUT argument '$outarg' ignored"), next | |
474 | if $outargs{$outarg} ++ ; | |
475 | if (!$gotRETVAL and $outarg eq 'RETVAL') { | |
476 | # deal with RETVAL last | |
477 | $RETVAL_code = $outcode ; | |
478 | $gotRETVAL = 1 ; | |
479 | next ; | |
480 | } | |
481 | blurt ("Error: OUTPUT $outarg not an argument"), next | |
482 | unless defined($args_match{$outarg}); | |
483 | blurt("Error: No input definition for OUTPUT argument '$outarg' - ignored"), next | |
484 | unless defined $var_types{$outarg} ; | |
f78230ad | 485 | $var_num = $args_match{$outarg}; |
8e07c86e AD |
486 | if ($outcode) { |
487 | print "\t$outcode\n"; | |
f78230ad | 488 | print "\tSvSETMAGIC(ST(" , $var_num-1 , "));\n" if $DoSetMagic; |
8e07c86e | 489 | } else { |
ef50df4b | 490 | &generate_output($var_types{$outarg}, $var_num, $outarg, $DoSetMagic); |
8e07c86e | 491 | } |
0f568861 IZ |
492 | delete $in_out{$outarg} # No need to auto-OUTPUT |
493 | if exists $in_out{$outarg} and $in_out{$outarg} =~ /OUT$/; | |
8e07c86e AD |
494 | } |
495 | } | |
496 | ||
cfc02341 IZ |
497 | sub C_ARGS_handler() { |
498 | my $in = merge_section(); | |
499 | ||
500 | TrimWhitespace($in); | |
501 | $func_args = $in; | |
502 | } | |
503 | ||
504 | sub INTERFACE_MACRO_handler() { | |
505 | my $in = merge_section(); | |
506 | ||
507 | TrimWhitespace($in); | |
508 | if ($in =~ /\s/) { # two | |
509 | ($interface_macro, $interface_macro_set) = split ' ', $in; | |
510 | } else { | |
511 | $interface_macro = $in; | |
512 | $interface_macro_set = 'UNKNOWN_CVT'; # catch later | |
513 | } | |
514 | $interface = 1; # local | |
515 | $Interfaces = 1; # global | |
516 | } | |
517 | ||
518 | sub INTERFACE_handler() { | |
519 | my $in = merge_section(); | |
520 | ||
521 | TrimWhitespace($in); | |
522 | ||
523 | foreach (split /[\s,]+/, $in) { | |
524 | $Interfaces{$_} = $_; | |
525 | } | |
526 | print Q<<"EOF"; | |
527 | # XSFUNCTION = $interface_macro($ret_type,cv,XSANY.any_dptr); | |
528 | EOF | |
529 | $interface = 1; # local | |
530 | $Interfaces = 1; # global | |
531 | } | |
532 | ||
8fc38fda | 533 | sub CLEANUP_handler() { print_section() } |
534 | sub PREINIT_handler() { print_section() } | |
63385af5 | 535 | sub POSTCALL_handler() { print_section() } |
8fc38fda | 536 | sub INIT_handler() { print_section() } |
537 | ||
8e07c86e AD |
538 | sub GetAliases |
539 | { | |
540 | my ($line) = @_ ; | |
541 | my ($orig) = $line ; | |
542 | my ($alias) ; | |
543 | my ($value) ; | |
544 | ||
545 | # Parse alias definitions | |
546 | # format is | |
547 | # alias = value alias = value ... | |
548 | ||
549 | while ($line =~ s/^\s*([\w:]+)\s*=\s*(\w+)\s*//) { | |
550 | $alias = $1 ; | |
551 | $orig_alias = $alias ; | |
552 | $value = $2 ; | |
553 | ||
554 | # check for optional package definition in the alias | |
555 | $alias = $Packprefix . $alias if $alias !~ /::/ ; | |
556 | ||
557 | # check for duplicate alias name & duplicate value | |
558 | Warn("Warning: Ignoring duplicate alias '$orig_alias'") | |
4230ab3f | 559 | if defined $XsubAliases{$alias} ; |
8e07c86e | 560 | |
4230ab3f | 561 | Warn("Warning: Aliases '$orig_alias' and '$XsubAliasValues{$value}' have identical values") |
562 | if $XsubAliasValues{$value} ; | |
8e07c86e | 563 | |
4230ab3f | 564 | $XsubAliases = 1; |
565 | $XsubAliases{$alias} = $value ; | |
566 | $XsubAliasValues{$value} = $orig_alias ; | |
8e07c86e AD |
567 | } |
568 | ||
569 | blurt("Error: Cannot parse ALIAS definitions from '$orig'") | |
570 | if $line ; | |
571 | } | |
572 | ||
be3174d2 GS |
573 | sub ATTRS_handler () |
574 | { | |
575 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { | |
576 | next unless /\S/; | |
577 | TrimWhitespace($_) ; | |
578 | push @Attributes, $_; | |
579 | } | |
580 | } | |
581 | ||
382b8d97 | 582 | sub ALIAS_handler () |
8e07c86e AD |
583 | { |
584 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { | |
585 | next unless /\S/; | |
586 | TrimWhitespace($_) ; | |
587 | GetAliases($_) if $_ ; | |
588 | } | |
589 | } | |
590 | ||
382b8d97 | 591 | sub REQUIRE_handler () |
8e07c86e AD |
592 | { |
593 | # the rest of the current line should contain a version number | |
594 | my ($Ver) = $_ ; | |
595 | ||
596 | TrimWhitespace($Ver) ; | |
597 | ||
598 | death ("Error: REQUIRE expects a version number") | |
599 | unless $Ver ; | |
600 | ||
601 | # check that the version number is of the form n.n | |
602 | death ("Error: REQUIRE: expected a number, got '$Ver'") | |
603 | unless $Ver =~ /^\d+(\.\d*)?/ ; | |
604 | ||
605 | death ("Error: xsubpp $Ver (or better) required--this is only $XSUBPP_version.") | |
606 | unless $XSUBPP_version >= $Ver ; | |
607 | } | |
608 | ||
8fc38fda | 609 | sub VERSIONCHECK_handler () |
610 | { | |
611 | # the rest of the current line should contain either ENABLE or | |
612 | # DISABLE | |
613 | ||
614 | TrimWhitespace($_) ; | |
615 | ||
616 | # check for ENABLE/DISABLE | |
617 | death ("Error: VERSIONCHECK: ENABLE/DISABLE") | |
618 | unless /^(ENABLE|DISABLE)/i ; | |
619 | ||
620 | $WantVersionChk = 1 if $1 eq 'ENABLE' ; | |
621 | $WantVersionChk = 0 if $1 eq 'DISABLE' ; | |
622 | ||
623 | } | |
624 | ||
382b8d97 PM |
625 | sub PROTOTYPE_handler () |
626 | { | |
7d41bd0a PM |
627 | my $specified ; |
628 | ||
c07a80fd | 629 | death("Error: Only 1 PROTOTYPE definition allowed per xsub") |
630 | if $proto_in_this_xsub ++ ; | |
631 | ||
382b8d97 PM |
632 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { |
633 | next unless /\S/; | |
7d41bd0a | 634 | $specified = 1 ; |
382b8d97 PM |
635 | TrimWhitespace($_) ; |
636 | if ($_ eq 'DISABLE') { | |
637 | $ProtoThisXSUB = 0 | |
638 | } | |
639 | elsif ($_ eq 'ENABLE') { | |
640 | $ProtoThisXSUB = 1 | |
641 | } | |
642 | else { | |
643 | # remove any whitespace | |
644 | s/\s+//g ; | |
645 | death("Error: Invalid prototype '$_'") | |
646 | unless ValidProtoString($_) ; | |
647 | $ProtoThisXSUB = C_string($_) ; | |
648 | } | |
649 | } | |
c07a80fd | 650 | |
7d41bd0a PM |
651 | # If no prototype specified, then assume empty prototype "" |
652 | $ProtoThisXSUB = 2 unless $specified ; | |
653 | ||
8fc38fda | 654 | $ProtoUsed = 1 ; |
c07a80fd | 655 | |
382b8d97 PM |
656 | } |
657 | ||
db3b9414 | 658 | sub SCOPE_handler () |
659 | { | |
660 | death("Error: Only 1 SCOPE declaration allowed per xsub") | |
661 | if $scope_in_this_xsub ++ ; | |
662 | ||
663 | for (; !/^$BLOCK_re/o; $_ = shift(@line)) { | |
664 | next unless /\S/; | |
665 | TrimWhitespace($_) ; | |
666 | if ($_ =~ /^DISABLE/i) { | |
667 | $ScopeThisXSUB = 0 | |
668 | } | |
669 | elsif ($_ =~ /^ENABLE/i) { | |
670 | $ScopeThisXSUB = 1 | |
671 | } | |
672 | } | |
673 | ||
674 | } | |
675 | ||
382b8d97 PM |
676 | sub PROTOTYPES_handler () |
677 | { | |
678 | # the rest of the current line should contain either ENABLE or | |
679 | # DISABLE | |
680 | ||
681 | TrimWhitespace($_) ; | |
682 | ||
683 | # check for ENABLE/DISABLE | |
684 | death ("Error: PROTOTYPES: ENABLE/DISABLE") | |
685 | unless /^(ENABLE|DISABLE)/i ; | |
686 | ||
687 | $WantPrototypes = 1 if $1 eq 'ENABLE' ; | |
688 | $WantPrototypes = 0 if $1 eq 'DISABLE' ; | |
8fc38fda | 689 | $ProtoUsed = 1 ; |
382b8d97 PM |
690 | |
691 | } | |
692 | ||
8fc38fda | 693 | sub INCLUDE_handler () |
694 | { | |
695 | # the rest of the current line should contain a valid filename | |
696 | ||
697 | TrimWhitespace($_) ; | |
698 | ||
8fc38fda | 699 | death("INCLUDE: filename missing") |
700 | unless $_ ; | |
701 | ||
702 | death("INCLUDE: output pipe is illegal") | |
703 | if /^\s*\|/ ; | |
704 | ||
705 | # simple minded recursion detector | |
706 | death("INCLUDE loop detected") | |
707 | if $IncludedFiles{$_} ; | |
708 | ||
709 | ++ $IncludedFiles{$_} unless /\|\s*$/ ; | |
710 | ||
711 | # Save the current file context. | |
4230ab3f | 712 | push(@XSStack, { |
713 | type => 'file', | |
8fc38fda | 714 | LastLine => $lastline, |
715 | LastLineNo => $lastline_no, | |
716 | Line => \@line, | |
717 | LineNo => \@line_no, | |
718 | Filename => $filename, | |
c07a80fd | 719 | Handle => $FH, |
8fc38fda | 720 | }) ; |
721 | ||
c07a80fd | 722 | ++ $FH ; |
8fc38fda | 723 | |
724 | # open the new file | |
c07a80fd | 725 | open ($FH, "$_") or death("Cannot open '$_': $!") ; |
8fc38fda | 726 | |
727 | print Q<<"EOF" ; | |
728 | # | |
729 | #/* INCLUDE: Including '$_' from '$filename' */ | |
730 | # | |
731 | EOF | |
732 | ||
8fc38fda | 733 | $filename = $_ ; |
734 | ||
c07a80fd | 735 | # Prime the pump by reading the first |
736 | # non-blank line | |
737 | ||
738 | # skip leading blank lines | |
739 | while (<$FH>) { | |
740 | last unless /^\s*$/ ; | |
741 | } | |
742 | ||
743 | $lastline = $_ ; | |
8fc38fda | 744 | $lastline_no = $. ; |
745 | ||
746 | } | |
747 | ||
748 | sub PopFile() | |
749 | { | |
4230ab3f | 750 | return 0 unless $XSStack[-1]{type} eq 'file' ; |
751 | ||
752 | my $data = pop @XSStack ; | |
8fc38fda | 753 | my $ThisFile = $filename ; |
754 | my $isPipe = ($filename =~ /\|\s*$/) ; | |
755 | ||
756 | -- $IncludedFiles{$filename} | |
757 | unless $isPipe ; | |
758 | ||
c07a80fd | 759 | close $FH ; |
8fc38fda | 760 | |
c07a80fd | 761 | $FH = $data->{Handle} ; |
8fc38fda | 762 | $filename = $data->{Filename} ; |
763 | $lastline = $data->{LastLine} ; | |
764 | $lastline_no = $data->{LastLineNo} ; | |
765 | @line = @{ $data->{Line} } ; | |
766 | @line_no = @{ $data->{LineNo} } ; | |
4230ab3f | 767 | |
8fc38fda | 768 | if ($isPipe and $? ) { |
769 | -- $lastline_no ; | |
770 | print STDERR "Error reading from pipe '$ThisFile': $! in $filename, line $lastline_no\n" ; | |
771 | exit 1 ; | |
772 | } | |
773 | ||
774 | print Q<<"EOF" ; | |
775 | # | |
776 | #/* INCLUDE: Returning to '$filename' from '$ThisFile' */ | |
777 | # | |
778 | EOF | |
779 | ||
780 | return 1 ; | |
781 | } | |
782 | ||
382b8d97 PM |
783 | sub ValidProtoString ($) |
784 | { | |
785 | my($string) = @_ ; | |
786 | ||
787 | if ( $string =~ /^$proto_re+$/ ) { | |
788 | return $string ; | |
789 | } | |
790 | ||
791 | return 0 ; | |
792 | } | |
793 | ||
794 | sub C_string ($) | |
795 | { | |
796 | my($string) = @_ ; | |
797 | ||
798 | $string =~ s[\\][\\\\]g ; | |
799 | $string ; | |
800 | } | |
801 | ||
802 | sub ProtoString ($) | |
803 | { | |
804 | my ($type) = @_ ; | |
805 | ||
93d3b392 | 806 | $proto_letter{$type} or "\$" ; |
382b8d97 PM |
807 | } |
808 | ||
8e07c86e AD |
809 | sub check_cpp { |
810 | my @cpp = grep(/^\#\s*(?:if|e\w+)/, @line); | |
811 | if (@cpp) { | |
812 | my ($cpp, $cpplevel); | |
813 | for $cpp (@cpp) { | |
814 | if ($cpp =~ /^\#\s*if/) { | |
815 | $cpplevel++; | |
816 | } elsif (!$cpplevel) { | |
817 | Warn("Warning: #else/elif/endif without #if in this function"); | |
4230ab3f | 818 | print STDERR " (precede it with a blank line if the matching #if is outside the function)\n" |
819 | if $XSStack[-1]{type} eq 'if'; | |
8e07c86e AD |
820 | return; |
821 | } elsif ($cpp =~ /^\#\s*endif/) { | |
822 | $cpplevel--; | |
823 | } | |
824 | } | |
825 | Warn("Warning: #if without #endif in this function") if $cpplevel; | |
826 | } | |
827 | } | |
828 | ||
829 | ||
8990e307 | 830 | sub Q { |
e50aee73 | 831 | my($text) = @_; |
4633a7c4 | 832 | $text =~ s/^#//gm; |
2304df62 AD |
833 | $text =~ s/\[\[/{/g; |
834 | $text =~ s/\]\]/}/g; | |
8990e307 | 835 | $text; |
93a17b20 LW |
836 | } |
837 | ||
c07a80fd | 838 | open($FH, $filename) or die "cannot open $filename: $!\n"; |
c2960299 | 839 | |
f06db76b | 840 | # Identify the version of xsubpp used |
f06db76b | 841 | print <<EOM ; |
e50aee73 AD |
842 | /* |
843 | * This file was generated automatically by xsubpp version $XSUBPP_version from the | |
93d3b392 | 844 | * contents of $filename. Do not edit this file, edit $filename instead. |
e50aee73 AD |
845 | * |
846 | * ANY CHANGES MADE HERE WILL BE LOST! | |
f06db76b AD |
847 | * |
848 | */ | |
e50aee73 | 849 | |
f06db76b | 850 | EOM |
6f1abe2b JT |
851 | |
852 | ||
853 | print("#line 1 \"$filename\"\n") | |
854 | if $WantLineNumbers; | |
f06db76b | 855 | |
e03d20b3 | 856 | firstmodule: |
c07a80fd | 857 | while (<$FH>) { |
e03d20b3 | 858 | if (/^=/) { |
7817ba4d | 859 | my $podstartline = $.; |
e03d20b3 | 860 | do { |
7817ba4d NC |
861 | if (/^=cut\s*$/) { |
862 | print("/* Skipped embedded POD. */\n"); | |
863 | printf("#line %d \"$filename\"\n", $. + 1) | |
864 | if $WantLineNumbers; | |
865 | next firstmodule | |
866 | } | |
867 | ||
e03d20b3 | 868 | } while (<$FH>); |
7817ba4d NC |
869 | # At this point $. is at end of file so die won't state the start |
870 | # of the problem, and as we haven't yet read any lines &death won't | |
871 | # show the correct line in the message either. | |
872 | die ("Error: Unterminated pod in $filename, line $podstartline\n") | |
873 | unless $lastline; | |
e03d20b3 | 874 | } |
e50aee73 AD |
875 | last if ($Module, $Package, $Prefix) = |
876 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/; | |
01f988be | 877 | |
a0d0e21e | 878 | print $_; |
93a17b20 | 879 | } |
e50aee73 AD |
880 | &Exit unless defined $_; |
881 | ||
cfc02341 IZ |
882 | print "$xsubpp::counter::SECTION_END_MARKER\n" if $WantLineNumbers; |
883 | ||
8fc38fda | 884 | $lastline = $_; |
885 | $lastline_no = $.; | |
93a17b20 | 886 | |
c07a80fd | 887 | # Read next xsub into @line from ($lastline, <$FH>). |
2304df62 AD |
888 | sub fetch_para { |
889 | # parse paragraph | |
4230ab3f | 890 | death ("Error: Unterminated `#if/#ifdef/#ifndef'") |
891 | if !defined $lastline && $XSStack[-1]{type} eq 'if'; | |
2304df62 | 892 | @line = (); |
c2960299 | 893 | @line_no = () ; |
4230ab3f | 894 | return PopFile() if !defined $lastline; |
e50aee73 AD |
895 | |
896 | if ($lastline =~ | |
897 | /^MODULE\s*=\s*([\w:]+)(?:\s+PACKAGE\s*=\s*([\w:]+))?(?:\s+PREFIX\s*=\s*(\S+))?\s*$/) { | |
898 | $Module = $1; | |
8e07c86e AD |
899 | $Package = defined($2) ? $2 : ''; # keep -w happy |
900 | $Prefix = defined($3) ? $3 : ''; # keep -w happy | |
ff68c719 | 901 | $Prefix = quotemeta $Prefix ; |
e50aee73 | 902 | ($Module_cname = $Module) =~ s/\W/_/g; |
8e07c86e | 903 | ($Packid = $Package) =~ tr/:/_/; |
e50aee73 | 904 | $Packprefix = $Package; |
8e07c86e | 905 | $Packprefix .= "::" if $Packprefix ne ""; |
2304df62 | 906 | $lastline = ""; |
e50aee73 AD |
907 | } |
908 | ||
909 | for(;;) { | |
e03d20b3 | 910 | # Skip embedded PODs |
413e5597 | 911 | while ($lastline =~ /^=/) { |
e03d20b3 GS |
912 | while ($lastline = <$FH>) { |
913 | last if ($lastline =~ /^=cut\s*$/); | |
914 | } | |
915 | death ("Error: Unterminated pod") unless $lastline; | |
916 | $lastline = <$FH>; | |
917 | chomp $lastline; | |
918 | $lastline =~ s/^\s+$//; | |
919 | } | |
e50aee73 | 920 | if ($lastline !~ /^\s*#/ || |
4230ab3f | 921 | # CPP directives: |
922 | # ANSI: if ifdef ifndef elif else endif define undef | |
923 | # line error pragma | |
924 | # gcc: warning include_next | |
925 | # obj-c: import | |
926 | # others: ident (gcc notes that some cpps have this one) | |
927 | $lastline =~ /^#[ \t]*(?:(?:if|ifn?def|elif|else|endif|define|undef|pragma|error|warning|line\s+\d+|ident)\b|(?:include(?:_next)?|import)\s*["<].*[>"])/) { | |
e50aee73 AD |
928 | last if $lastline =~ /^\S/ && @line && $line[-1] eq ""; |
929 | push(@line, $lastline); | |
930 | push(@line_no, $lastline_no) ; | |
93a17b20 | 931 | } |
e50aee73 AD |
932 | |
933 | # Read next line and continuation lines | |
c07a80fd | 934 | last unless defined($lastline = <$FH>); |
e50aee73 AD |
935 | $lastline_no = $.; |
936 | my $tmp_line; | |
937 | $lastline .= $tmp_line | |
c07a80fd | 938 | while ($lastline =~ /\\$/ && defined($tmp_line = <$FH>)); |
f8b8e0a4 | 939 | |
8e07c86e | 940 | chomp $lastline; |
e50aee73 | 941 | $lastline =~ s/^\s+$//; |
2304df62 | 942 | } |
e50aee73 | 943 | pop(@line), pop(@line_no) while @line && $line[-1] eq ""; |
e50aee73 | 944 | 1; |
2304df62 | 945 | } |
93a17b20 | 946 | |
c2960299 | 947 | PARAGRAPH: |
8e07c86e | 948 | while (fetch_para()) { |
e50aee73 | 949 | # Print initial preprocessor statements and blank lines |
4230ab3f | 950 | while (@line && $line[0] !~ /^[^\#]/) { |
951 | my $line = shift(@line); | |
952 | print $line, "\n"; | |
953 | next unless $line =~ /^\#\s*((if)(?:n?def)?|elsif|else|endif)\b/; | |
954 | my $statement = $+; | |
955 | if ($statement eq 'if') { | |
956 | $XSS_work_idx = @XSStack; | |
957 | push(@XSStack, {type => 'if'}); | |
958 | } else { | |
959 | death ("Error: `$statement' with no matching `if'") | |
960 | if $XSStack[-1]{type} ne 'if'; | |
961 | if ($XSStack[-1]{varname}) { | |
962 | push(@InitFileCode, "#endif\n"); | |
963 | push(@BootCode, "#endif"); | |
964 | } | |
965 | ||
966 | my(@fns) = keys %{$XSStack[-1]{functions}}; | |
967 | if ($statement ne 'endif') { | |
968 | # Hide the functions defined in other #if branches, and reset. | |
969 | @{$XSStack[-1]{other_functions}}{@fns} = (1) x @fns; | |
970 | @{$XSStack[-1]}{qw(varname functions)} = ('', {}); | |
971 | } else { | |
972 | my($tmp) = pop(@XSStack); | |
973 | 0 while (--$XSS_work_idx | |
974 | && $XSStack[$XSS_work_idx]{type} ne 'if'); | |
975 | # Keep all new defined functions | |
976 | push(@fns, keys %{$tmp->{other_functions}}); | |
977 | @{$XSStack[$XSS_work_idx]{functions}}{@fns} = (1) x @fns; | |
978 | } | |
979 | } | |
980 | } | |
e50aee73 AD |
981 | |
982 | next PARAGRAPH unless @line; | |
983 | ||
4230ab3f | 984 | if ($XSS_work_idx && !$XSStack[$XSS_work_idx]{varname}) { |
985 | # We are inside an #if, but have not yet #defined its xsubpp variable. | |
986 | print "#define $cpp_next_tmp 1\n\n"; | |
987 | push(@InitFileCode, "#if $cpp_next_tmp\n"); | |
988 | push(@BootCode, "#if $cpp_next_tmp"); | |
989 | $XSStack[$XSS_work_idx]{varname} = $cpp_next_tmp++; | |
990 | } | |
991 | ||
55497cff | 992 | death ("Code is not inside a function" |
993 | ." (maybe last function was ended by a blank line " | |
6d087280 | 994 | ." followed by a statement on column one?)") |
e50aee73 AD |
995 | if $line[0] =~ /^\s/; |
996 | ||
2304df62 AD |
997 | # initialize info arrays |
998 | undef(%args_match); | |
999 | undef(%var_types); | |
2304df62 AD |
1000 | undef(%defaults); |
1001 | undef($class); | |
1002 | undef($static); | |
1003 | undef($elipsis); | |
f06db76b | 1004 | undef($wantRETVAL) ; |
f8b8e0a4 | 1005 | undef($RETVAL_no_return) ; |
f06db76b | 1006 | undef(%arg_list) ; |
382b8d97 | 1007 | undef(@proto_arg) ; |
f8b8e0a4 GS |
1008 | undef(@arg_with_types) ; |
1009 | undef($processing_arg_with_types) ; | |
1010 | undef(%arg_types) ; | |
0f568861 | 1011 | undef(@outlist) ; |
f8b8e0a4 | 1012 | undef(%in_out) ; |
c07a80fd | 1013 | undef($proto_in_this_xsub) ; |
db3b9414 | 1014 | undef($scope_in_this_xsub) ; |
cfc02341 | 1015 | undef($interface); |
f8b8e0a4 | 1016 | undef($prepush_done); |
cfc02341 IZ |
1017 | $interface_macro = 'XSINTERFACE_FUNC' ; |
1018 | $interface_macro_set = 'XSINTERFACE_FUNC_SET' ; | |
382b8d97 | 1019 | $ProtoThisXSUB = $WantPrototypes ; |
db3b9414 | 1020 | $ScopeThisXSUB = 0; |
f8b8e0a4 | 1021 | $xsreturn = 0; |
2304df62 | 1022 | |
8e07c86e | 1023 | $_ = shift(@line); |
8fc38fda | 1024 | while ($kwd = check_keyword("REQUIRE|PROTOTYPES|VERSIONCHECK|INCLUDE")) { |
1025 | &{"${kwd}_handler"}() ; | |
8e07c86e AD |
1026 | next PARAGRAPH unless @line ; |
1027 | $_ = shift(@line); | |
1028 | } | |
c2960299 | 1029 | |
8e07c86e AD |
1030 | if (check_keyword("BOOT")) { |
1031 | &check_cpp; | |
6f1abe2b JT |
1032 | push (@BootCode, "#line $line_no[@line_no - @line] \"$filename\"") |
1033 | if $WantLineNumbers && $line[0] !~ /^\s*#\s*line\b/; | |
1034 | push (@BootCode, @line, "") ; | |
c2960299 | 1035 | next PARAGRAPH ; |
a0d0e21e | 1036 | } |
c2960299 | 1037 | |
8e07c86e AD |
1038 | |
1039 | # extract return type, function name and arguments | |
cfc02341 | 1040 | ($ret_type) = TidyType($_); |
f8b8e0a4 | 1041 | $RETVAL_no_return = 1 if $ret_type =~ s/^NO_OUTPUT\s+//; |
8e07c86e | 1042 | |
11416672 GS |
1043 | # Allow one-line ANSI-like declaration |
1044 | unshift @line, $2 | |
1045 | if $process_argtypes | |
1046 | and $ret_type =~ s/^(.*?\w.*?)\s*\b(\w+\s*\(.*)/$1/s; | |
1047 | ||
c2960299 AD |
1048 | # a function definition needs at least 2 lines |
1049 | blurt ("Error: Function definition too short '$ret_type'"), next PARAGRAPH | |
1050 | unless @line ; | |
1051 | ||
8e07c86e AD |
1052 | $static = 1 if $ret_type =~ s/^static\s+//; |
1053 | ||
2304df62 | 1054 | $func_header = shift(@line); |
c2960299 | 1055 | blurt ("Error: Cannot parse function definition from '$func_header'"), next PARAGRAPH |
f8b8e0a4 | 1056 | unless $func_header =~ /^(?:([\w:]*)::)?(\w+)\s*\(\s*(.*?)\s*\)\s*(const)?\s*(;\s*)?$/s; |
c2960299 | 1057 | |
8e07c86e | 1058 | ($class, $func_name, $orig_args) = ($1, $2, $3) ; |
f480b56a | 1059 | $class = "$4 $class" if $4; |
2304df62 | 1060 | ($pname = $func_name) =~ s/^($Prefix)?/$Packprefix/; |
ff68c719 | 1061 | ($clean_func_name = $func_name) =~ s/^$Prefix//; |
1062 | $Full_func_name = "${Packid}_$clean_func_name"; | |
ff0cee69 | 1063 | if ($Is_VMS) { $Full_func_name = $SymSet->addsym($Full_func_name); } |
c2960299 AD |
1064 | |
1065 | # Check for duplicate function definition | |
4230ab3f | 1066 | for $tmp (@XSStack) { |
1067 | next unless defined $tmp->{functions}{$Full_func_name}; | |
ff68c719 | 1068 | Warn("Warning: duplicate function definition '$clean_func_name' detected"); |
4230ab3f | 1069 | last; |
8e07c86e | 1070 | } |
4230ab3f | 1071 | $XSStack[$XSS_work_idx]{functions}{$Full_func_name} ++ ; |
be3174d2 | 1072 | %XsubAliases = %XsubAliasValues = %Interfaces = @Attributes = (); |
ef50df4b | 1073 | $DoSetMagic = 1; |
c2960299 | 1074 | |
f8b8e0a4 GS |
1075 | $orig_args =~ s/\\\s*/ /g; # process line continuations |
1076 | ||
cb79badd | 1077 | my %only_outlist; |
f8b8e0a4 GS |
1078 | if ($process_argtypes and $orig_args =~ /\S/) { |
1079 | my $args = "$orig_args ,"; | |
14455d6c GS |
1080 | if ($args =~ /^( (??{ $C_arg }) , )* $ /x) { |
1081 | @args = ($args =~ /\G ( (??{ $C_arg }) ) , /xg); | |
f8b8e0a4 GS |
1082 | for ( @args ) { |
1083 | s/^\s+//; | |
1084 | s/\s+$//; | |
1085 | my $arg = $_; | |
1086 | my $default; | |
1087 | ($arg, $default) = / ( [^=]* ) ( (?: = .* )? ) /x; | |
1088 | my ($pre, $name) = ($arg =~ /(.*?) \s* \b(\w+) \s* $ /x); | |
1089 | next unless length $pre; | |
1090 | my $out_type; | |
1091 | my $inout_var; | |
0f568861 | 1092 | if ($process_inout and s/^(IN|IN_OUTLIST|OUTLIST|OUT|IN_OUT)\s+//) { |
f8b8e0a4 | 1093 | my $type = $1; |
63385af5 | 1094 | $out_type = $type if $type ne 'IN'; |
0f568861 | 1095 | $arg =~ s/^(IN|IN_OUTLIST|OUTLIST|OUT|IN_OUT)\s+//; |
f8b8e0a4 GS |
1096 | } |
1097 | if (/\W/) { # Has a type | |
1098 | push @arg_with_types, $arg; | |
1099 | # warn "pushing '$arg'\n"; | |
1100 | $arg_types{$name} = $arg; | |
1101 | $_ = "$name$default"; | |
1102 | } | |
cb79badd | 1103 | $only_outlist{$_} = 1 if $out_type eq "OUTLIST"; |
0f568861 | 1104 | push @outlist, $name if $out_type =~ /OUTLIST$/; |
f8b8e0a4 GS |
1105 | $in_out{$name} = $out_type if $out_type; |
1106 | } | |
1107 | } else { | |
1108 | @args = split(/\s*,\s*/, $orig_args); | |
1109 | Warn("Warning: cannot parse argument list '$orig_args', fallback to split"); | |
1110 | } | |
1111 | } else { | |
1112 | @args = split(/\s*,\s*/, $orig_args); | |
1113 | for (@args) { | |
0f568861 | 1114 | if ($process_inout and s/^(IN|IN_OUTLIST|OUTLIST|IN_OUT|OUT)\s+//) { |
f8b8e0a4 | 1115 | my $out_type = $1; |
63385af5 | 1116 | next if $out_type eq 'IN'; |
cb79badd | 1117 | $only_outlist{$_} = 1 if $out_type eq "OUTLIST"; |
0f568861 | 1118 | push @outlist, $name if $out_type =~ /OUTLIST$/; |
f8b8e0a4 GS |
1119 | $in_out{$_} = $out_type; |
1120 | } | |
1121 | } | |
1122 | } | |
a0d0e21e | 1123 | if (defined($class)) { |
683d4eee JL |
1124 | my $arg0 = ((defined($static) or $func_name eq 'new') |
1125 | ? "CLASS" : "THIS"); | |
8e07c86e | 1126 | unshift(@args, $arg0); |
f8b8e0a4 | 1127 | ($report_args = "$arg0, $report_args") =~ s/^\w+, $/$arg0/; |
2304df62 | 1128 | } |
f8b8e0a4 GS |
1129 | my $extra_args = 0; |
1130 | @args_num = (); | |
1131 | $num_args = 0; | |
1132 | my $report_args = ''; | |
1133 | foreach $i (0 .. $#args) { | |
2304df62 AD |
1134 | if ($args[$i] =~ s/\.\.\.//) { |
1135 | $elipsis = 1; | |
f8b8e0a4 GS |
1136 | if ($args[$i] eq '' && $i == $#args) { |
1137 | $report_args .= ", ..."; | |
2304df62 AD |
1138 | pop(@args); |
1139 | last; | |
1140 | } | |
1141 | } | |
cb79badd | 1142 | if ($only_outlist{$args[$i]}) { |
f8b8e0a4 GS |
1143 | push @args_num, undef; |
1144 | } else { | |
1145 | push @args_num, ++$num_args; | |
1146 | $report_args .= ", $args[$i]"; | |
1147 | } | |
8e07c86e | 1148 | if ($args[$i] =~ /^([^=]*[^\s=])\s*=\s*(.*)/s) { |
f8b8e0a4 | 1149 | $extra_args++; |
2304df62 AD |
1150 | $args[$i] = $1; |
1151 | $defaults{$args[$i]} = $2; | |
1152 | $defaults{$args[$i]} =~ s/"/\\"/g; | |
1153 | } | |
93d3b392 | 1154 | $proto_arg[$i+1] = "\$" ; |
2304df62 | 1155 | } |
f8b8e0a4 GS |
1156 | $min_args = $num_args - $extra_args; |
1157 | $report_args =~ s/"/\\"/g; | |
1158 | $report_args =~ s/^,\s+//; | |
1159 | my @func_args = @args; | |
1160 | shift @func_args if defined($class); | |
1161 | ||
1162 | for (@func_args) { | |
1163 | s/^/&/ if $in_out{$_}; | |
2304df62 | 1164 | } |
f8b8e0a4 GS |
1165 | $func_args = join(", ", @func_args); |
1166 | @args_match{@args} = @args_num; | |
2304df62 | 1167 | |
8e07c86e | 1168 | $PPCODE = grep(/^\s*PPCODE\s*:/, @line); |
93d3b392 | 1169 | $CODE = grep(/^\s*CODE\s*:/, @line); |
6c5fb52b TB |
1170 | # Detect CODE: blocks which use ST(n)= or XST_m*(n,v) |
1171 | # to set explicit return values. | |
1172 | $EXPLICIT_RETURN = ($CODE && | |
1173 | ("@line" =~ /(\bST\s*\([^;]*=) | (\bXST_m\w+\s*\()/x )); | |
8e07c86e | 1174 | $ALIAS = grep(/^\s*ALIAS\s*:/, @line); |
cfc02341 | 1175 | $INTERFACE = grep(/^\s*INTERFACE\s*:/, @line); |
8e07c86e | 1176 | |
f8b8e0a4 GS |
1177 | $xsreturn = 1 if $EXPLICIT_RETURN; |
1178 | ||
2304df62 | 1179 | # print function header |
a0d0e21e | 1180 | print Q<<"EOF"; |
05ceb97a | 1181 | #XS(XS_${Full_func_name}); /* prototype to pass -Wmissing-prototypes */ |
ff68c719 | 1182 | #XS(XS_${Full_func_name}) |
2304df62 | 1183 | #[[ |
a0d0e21e | 1184 | # dXSARGS; |
93a17b20 | 1185 | EOF |
8e07c86e AD |
1186 | print Q<<"EOF" if $ALIAS ; |
1187 | # dXSI32; | |
1188 | EOF | |
cfc02341 IZ |
1189 | print Q<<"EOF" if $INTERFACE ; |
1190 | # dXSFUNCTION($ret_type); | |
1191 | EOF | |
2304df62 | 1192 | if ($elipsis) { |
8e07c86e | 1193 | $cond = ($min_args ? qq(items < $min_args) : 0); |
2304df62 AD |
1194 | } |
1195 | elsif ($min_args == $num_args) { | |
1196 | $cond = qq(items != $min_args); | |
1197 | } | |
1198 | else { | |
1199 | $cond = qq(items < $min_args || items > $num_args); | |
1200 | } | |
8990e307 | 1201 | |
2304df62 AD |
1202 | print Q<<"EOF" if $except; |
1203 | # char errbuf[1024]; | |
1204 | # *errbuf = '\0'; | |
1205 | EOF | |
1206 | ||
8e07c86e AD |
1207 | if ($ALIAS) |
1208 | { print Q<<"EOF" if $cond } | |
1209 | # if ($cond) | |
f8b8e0a4 | 1210 | # Perl_croak(aTHX_ "Usage: %s($report_args)", GvNAME(CvGV(cv))); |
8e07c86e AD |
1211 | EOF |
1212 | else | |
1213 | { print Q<<"EOF" if $cond } | |
1214 | # if ($cond) | |
f8b8e0a4 | 1215 | # Perl_croak(aTHX_ "Usage: $pname($report_args)"); |
93a17b20 LW |
1216 | EOF |
1217 | ||
349b520e DM |
1218 | #gcc -Wall: if an xsub has no arguments and PPCODE is used |
1219 | #it is likely none of ST, XSRETURN or XSprePUSH macros are used | |
1220 | #hence `ax' (setup by dXSARGS) is unused | |
1221 | #XXX: could breakup the dXSARGS; into dSP;dMARK;dITEMS | |
1222 | #but such a move could break third-party extensions | |
1223 | print Q<<"EOF" if $PPCODE and $num_args == 0; | |
1224 | # PERL_UNUSED_VAR(ax); /* -Wall */ | |
1225 | EOF | |
1226 | ||
a0d0e21e LW |
1227 | print Q<<"EOF" if $PPCODE; |
1228 | # SP -= items; | |
1229 | EOF | |
1230 | ||
2304df62 | 1231 | # Now do a block of some sort. |
93a17b20 | 1232 | |
2304df62 | 1233 | $condnum = 0; |
8e07c86e AD |
1234 | $cond = ''; # last CASE: condidional |
1235 | push(@line, "$END:"); | |
1236 | push(@line_no, $line_no[-1]); | |
1237 | $_ = ''; | |
1238 | &check_cpp; | |
2304df62 | 1239 | while (@line) { |
8e07c86e AD |
1240 | &CASE_handler if check_keyword("CASE"); |
1241 | print Q<<"EOF"; | |
1242 | # $except [[ | |
93a17b20 LW |
1243 | EOF |
1244 | ||
1245 | # do initialization of input variables | |
1246 | $thisdone = 0; | |
1247 | $retvaldone = 0; | |
463ee0b2 | 1248 | $deferred = ""; |
c2960299 AD |
1249 | %arg_list = () ; |
1250 | $gotRETVAL = 0; | |
f06db76b | 1251 | |
8fc38fda | 1252 | INPUT_handler() ; |
be3174d2 | 1253 | process_keyword("INPUT|PREINIT|INTERFACE_MACRO|C_ARGS|ALIAS|ATTRS|PROTOTYPE|SCOPE") ; |
8fc38fda | 1254 | |
db3b9414 | 1255 | print Q<<"EOF" if $ScopeThisXSUB; |
1256 | # ENTER; | |
1257 | # [[ | |
1258 | EOF | |
1259 | ||
a0d0e21e | 1260 | if (!$thisdone && defined($class)) { |
683d4eee | 1261 | if (defined($static) or $func_name eq 'new') { |
a0d0e21e LW |
1262 | print "\tchar *"; |
1263 | $var_types{"CLASS"} = "char *"; | |
1264 | &generate_init("char *", 1, "CLASS"); | |
1265 | } | |
1266 | else { | |
93a17b20 LW |
1267 | print "\t$class *"; |
1268 | $var_types{"THIS"} = "$class *"; | |
1269 | &generate_init("$class *", 1, "THIS"); | |
a0d0e21e | 1270 | } |
93a17b20 LW |
1271 | } |
1272 | ||
1273 | # do code | |
1274 | if (/^\s*NOT_IMPLEMENTED_YET/) { | |
cea2e8a9 | 1275 | print "\n\tPerl_croak(aTHX_ \"$pname: not implemented yet\");\n"; |
4633a7c4 | 1276 | $_ = '' ; |
93a17b20 LW |
1277 | } else { |
1278 | if ($ret_type ne "void") { | |
ddf6bed1 | 1279 | print "\t" . &map_type($ret_type, 'RETVAL') . ";\n" |
93a17b20 LW |
1280 | if !$retvaldone; |
1281 | $args_match{"RETVAL"} = 0; | |
1282 | $var_types{"RETVAL"} = $ret_type; | |
b26a54d0 GS |
1283 | print "\tdXSTARG;\n" |
1284 | if $WantOptimize and $targetable{$type_kind{$ret_type}}; | |
93a17b20 | 1285 | } |
db3b9414 | 1286 | |
f8b8e0a4 GS |
1287 | if (@arg_with_types) { |
1288 | unshift @line, @arg_with_types, $_; | |
1289 | $_ = ""; | |
1290 | $processing_arg_with_types = 1; | |
1291 | INPUT_handler() ; | |
1292 | } | |
8e07c86e | 1293 | print $deferred; |
db3b9414 | 1294 | |
be3174d2 | 1295 | process_keyword("INIT|ALIAS|ATTRS|PROTOTYPE|INTERFACE_MACRO|INTERFACE|C_ARGS") ; |
8e07c86e AD |
1296 | |
1297 | if (check_keyword("PPCODE")) { | |
8fc38fda | 1298 | print_section(); |
8e07c86e | 1299 | death ("PPCODE must be last thing") if @line; |
db3b9414 | 1300 | print "\tLEAVE;\n" if $ScopeThisXSUB; |
a0d0e21e | 1301 | print "\tPUTBACK;\n\treturn;\n"; |
8e07c86e | 1302 | } elsif (check_keyword("CODE")) { |
8fc38fda | 1303 | print_section() ; |
1304 | } elsif (defined($class) and $func_name eq "DESTROY") { | |
a0d0e21e | 1305 | print "\n\t"; |
8e07c86e | 1306 | print "delete THIS;\n"; |
93a17b20 LW |
1307 | } else { |
1308 | print "\n\t"; | |
1309 | if ($ret_type ne "void") { | |
463ee0b2 | 1310 | print "RETVAL = "; |
e50aee73 | 1311 | $wantRETVAL = 1; |
93a17b20 LW |
1312 | } |
1313 | if (defined($static)) { | |
683d4eee | 1314 | if ($func_name eq 'new') { |
8fc38fda | 1315 | $func_name = "$class"; |
8e07c86e AD |
1316 | } else { |
1317 | print "${class}::"; | |
a0d0e21e | 1318 | } |
93a17b20 | 1319 | } elsif (defined($class)) { |
683d4eee | 1320 | if ($func_name eq 'new') { |
8fc38fda | 1321 | $func_name .= " $class"; |
1322 | } else { | |
93a17b20 | 1323 | print "THIS->"; |
8fc38fda | 1324 | } |
93a17b20 | 1325 | } |
e50aee73 AD |
1326 | $func_name =~ s/^($spat)// |
1327 | if defined($spat); | |
cfc02341 | 1328 | $func_name = 'XSFUNCTION' if $interface; |
93a17b20 | 1329 | print "$func_name($func_args);\n"; |
93a17b20 LW |
1330 | } |
1331 | } | |
1332 | ||
1333 | # do output variables | |
f8b8e0a4 GS |
1334 | $gotRETVAL = 0; # 1 if RETVAL seen in OUTPUT section; |
1335 | undef $RETVAL_code ; # code to set RETVAL (from OUTPUT section); | |
1336 | # $wantRETVAL set if 'RETVAL =' autogenerated | |
1337 | ($wantRETVAL, $ret_type) = (0, 'void') if $RETVAL_no_return; | |
8e07c86e | 1338 | undef %outargs ; |
be3174d2 | 1339 | process_keyword("POSTCALL|OUTPUT|ALIAS|ATTRS|PROTOTYPE"); |
f06db76b | 1340 | |
0f568861 IZ |
1341 | &generate_output($var_types{$_}, $args_match{$_}, $_, $DoSetMagic) |
1342 | for grep $in_out{$_} =~ /OUT$/, keys %in_out; | |
1343 | ||
f06db76b | 1344 | # all OUTPUT done, so now push the return value on the stack |
8e07c86e AD |
1345 | if ($gotRETVAL && $RETVAL_code) { |
1346 | print "\t$RETVAL_code\n"; | |
1347 | } elsif ($gotRETVAL || $wantRETVAL) { | |
b26a54d0 GS |
1348 | my $t = $WantOptimize && $targetable{$type_kind{$ret_type}}; |
1349 | my $var = 'RETVAL'; | |
1350 | my $type = $ret_type; | |
1351 | ||
1352 | # 0: type, 1: with_size, 2: how, 3: how_size | |
1353 | if ($t and not $t->[1] and $t->[0] eq 'p') { | |
1354 | # PUSHp corresponds to setpvn. Treate setpv directly | |
1355 | my $what = eval qq("$t->[2]"); | |
1356 | warn $@ if $@; | |
1357 | ||
1358 | print "\tsv_setpv(TARG, $what); XSprePUSH; PUSHTARG;\n"; | |
f8b8e0a4 | 1359 | $prepush_done = 1; |
b26a54d0 GS |
1360 | } |
1361 | elsif ($t) { | |
1362 | my $what = eval qq("$t->[2]"); | |
1363 | warn $@ if $@; | |
1364 | ||
1365 | my $size = $t->[3]; | |
1366 | $size = '' unless defined $size; | |
1367 | $size = eval qq("$size"); | |
1368 | warn $@ if $@; | |
1369 | print "\tXSprePUSH; PUSH$t->[0]($what$size);\n"; | |
f8b8e0a4 | 1370 | $prepush_done = 1; |
b26a54d0 GS |
1371 | } |
1372 | else { | |
1373 | # RETVAL almost never needs SvSETMAGIC() | |
1374 | &generate_output($ret_type, 0, 'RETVAL', 0); | |
1375 | } | |
8e07c86e | 1376 | } |
f06db76b | 1377 | |
f8b8e0a4 GS |
1378 | $xsreturn = 1 if $ret_type ne "void"; |
1379 | my $num = $xsreturn; | |
0f568861 | 1380 | my $c = @outlist; |
f8b8e0a4 GS |
1381 | print "\tXSprePUSH;" if $c and not $prepush_done; |
1382 | print "\tEXTEND(SP,$c);\n" if $c; | |
1383 | $xsreturn += $c; | |
0f568861 | 1384 | generate_output($var_types{$_}, $num++, $_, 0, 1) for @outlist; |
f8b8e0a4 | 1385 | |
93a17b20 | 1386 | # do cleanup |
be3174d2 | 1387 | process_keyword("CLEANUP|ALIAS|ATTRS|PROTOTYPE") ; |
8e07c86e | 1388 | |
db3b9414 | 1389 | print Q<<"EOF" if $ScopeThisXSUB; |
1390 | # ]] | |
1391 | EOF | |
1392 | print Q<<"EOF" if $ScopeThisXSUB and not $PPCODE; | |
1393 | # LEAVE; | |
1394 | EOF | |
1395 | ||
93a17b20 | 1396 | # print function trailer |
8e07c86e | 1397 | print Q<<EOF; |
2304df62 | 1398 | # ]] |
8e07c86e AD |
1399 | EOF |
1400 | print Q<<EOF if $except; | |
8990e307 LW |
1401 | # BEGHANDLERS |
1402 | # CATCHALL | |
1403 | # sprintf(errbuf, "%s: %s\\tpropagated", Xname, Xreason); | |
1404 | # ENDHANDLERS | |
93a17b20 | 1405 | EOF |
8e07c86e AD |
1406 | if (check_keyword("CASE")) { |
1407 | blurt ("Error: No `CASE:' at top of function") | |
1408 | unless $condnum; | |
1409 | $_ = "CASE: $_"; # Restore CASE: label | |
1410 | next; | |
8990e307 | 1411 | } |
8e07c86e AD |
1412 | last if $_ eq "$END:"; |
1413 | death(/^$BLOCK_re/o ? "Misplaced `$1:'" : "Junk at end of function"); | |
2304df62 | 1414 | } |
a0d0e21e | 1415 | |
2304df62 AD |
1416 | print Q<<EOF if $except; |
1417 | # if (errbuf[0]) | |
cea2e8a9 | 1418 | # Perl_croak(aTHX_ errbuf); |
2304df62 | 1419 | EOF |
a0d0e21e | 1420 | |
f8b8e0a4 | 1421 | if ($xsreturn) { |
93d3b392 | 1422 | print Q<<EOF unless $PPCODE; |
f8b8e0a4 | 1423 | # XSRETURN($xsreturn); |
a0d0e21e | 1424 | EOF |
93d3b392 | 1425 | } else { |
1426 | print Q<<EOF unless $PPCODE; | |
1427 | # XSRETURN_EMPTY; | |
1428 | EOF | |
1429 | } | |
a0d0e21e | 1430 | |
2304df62 | 1431 | print Q<<EOF; |
2304df62 | 1432 | #]] |
8990e307 | 1433 | # |
93a17b20 | 1434 | EOF |
382b8d97 | 1435 | |
4230ab3f | 1436 | my $newXS = "newXS" ; |
1437 | my $proto = "" ; | |
1438 | ||
382b8d97 PM |
1439 | # Build the prototype string for the xsub |
1440 | if ($ProtoThisXSUB) { | |
4230ab3f | 1441 | $newXS = "newXSproto"; |
1442 | ||
6f1abe2b | 1443 | if ($ProtoThisXSUB eq 2) { |
4230ab3f | 1444 | # User has specified empty prototype |
1445 | $proto = ', ""' ; | |
1446 | } | |
6f1abe2b | 1447 | elsif ($ProtoThisXSUB ne 1) { |
7d41bd0a | 1448 | # User has specified a prototype |
4230ab3f | 1449 | $proto = ', "' . $ProtoThisXSUB . '"'; |
382b8d97 PM |
1450 | } |
1451 | else { | |
1452 | my $s = ';'; | |
1453 | if ($min_args < $num_args) { | |
1454 | $s = ''; | |
1455 | $proto_arg[$min_args] .= ";" ; | |
1456 | } | |
4230ab3f | 1457 | push @proto_arg, "$s\@" |
382b8d97 PM |
1458 | if $elipsis ; |
1459 | ||
4230ab3f | 1460 | $proto = ', "' . join ("", @proto_arg) . '"'; |
382b8d97 PM |
1461 | } |
1462 | } | |
1463 | ||
4230ab3f | 1464 | if (%XsubAliases) { |
1465 | $XsubAliases{$pname} = 0 | |
1466 | unless defined $XsubAliases{$pname} ; | |
1467 | while ( ($name, $value) = each %XsubAliases) { | |
1468 | push(@InitFileCode, Q<<"EOF"); | |
1469 | # cv = newXS(\"$name\", XS_$Full_func_name, file); | |
1470 | # XSANY.any_i32 = $value ; | |
1471 | EOF | |
1472 | push(@InitFileCode, Q<<"EOF") if $proto; | |
1473 | # sv_setpv((SV*)cv$proto) ; | |
1474 | EOF | |
1475 | } | |
cfc02341 | 1476 | } |
be3174d2 GS |
1477 | elsif (@Attributes) { |
1478 | push(@InitFileCode, Q<<"EOF"); | |
1479 | # cv = newXS(\"$pname\", XS_$Full_func_name, file); | |
1480 | # apply_attrs_string("$Package", cv, "@Attributes", 0); | |
1481 | EOF | |
1482 | } | |
cfc02341 IZ |
1483 | elsif ($interface) { |
1484 | while ( ($name, $value) = each %Interfaces) { | |
1485 | $name = "$Package\::$name" unless $name =~ /::/; | |
1486 | push(@InitFileCode, Q<<"EOF"); | |
1487 | # cv = newXS(\"$name\", XS_$Full_func_name, file); | |
1488 | # $interface_macro_set(cv,$value) ; | |
1489 | EOF | |
1490 | push(@InitFileCode, Q<<"EOF") if $proto; | |
1491 | # sv_setpv((SV*)cv$proto) ; | |
1492 | EOF | |
1493 | } | |
4230ab3f | 1494 | } |
1495 | else { | |
1496 | push(@InitFileCode, | |
1497 | " ${newXS}(\"$pname\", XS_$Full_func_name, file$proto);\n"); | |
1498 | } | |
93a17b20 LW |
1499 | } |
1500 | ||
1501 | # print initialization routine | |
7ee8c957 | 1502 | |
e3b8966e | 1503 | print Q<<"EOF"; |
e3b8966e GS |
1504 | ##ifdef __cplusplus |
1505 | #extern "C" | |
1506 | ##endif | |
7ee8c957 GS |
1507 | EOF |
1508 | ||
8990e307 | 1509 | print Q<<"EOF"; |
05ceb97a | 1510 | #XS(boot_$Module_cname); /* prototype to pass -Wmissing-prototypes */ |
a0d0e21e | 1511 | #XS(boot_$Module_cname) |
7ee8c957 GS |
1512 | EOF |
1513 | ||
7ee8c957 | 1514 | print Q<<"EOF"; |
2304df62 | 1515 | #[[ |
a0d0e21e | 1516 | # dXSARGS; |
c6c619a9 DM |
1517 | EOF |
1518 | ||
1519 | #-Wall: if there is no $Full_func_name there are no xsubs in this .xs | |
1520 | #so `file' is unused | |
1521 | print Q<<"EOF" if $Full_func_name; | |
8990e307 | 1522 | # char* file = __FILE__; |
93a17b20 LW |
1523 | EOF |
1524 | ||
c6c619a9 DM |
1525 | print Q "#\n"; |
1526 | ||
8fc38fda | 1527 | print Q<<"EOF" if $WantVersionChk ; |
1528 | # XS_VERSION_BOOTCHECK ; | |
1529 | # | |
1530 | EOF | |
1531 | ||
cfc02341 | 1532 | print Q<<"EOF" if defined $XsubAliases or defined $Interfaces ; |
8e07c86e AD |
1533 | # { |
1534 | # CV * cv ; | |
1535 | # | |
1536 | EOF | |
1537 | ||
4230ab3f | 1538 | print @InitFileCode; |
a0d0e21e | 1539 | |
cfc02341 | 1540 | print Q<<"EOF" if defined $XsubAliases or defined $Interfaces ; |
8e07c86e AD |
1541 | # } |
1542 | EOF | |
1543 | ||
a0d0e21e LW |
1544 | if (@BootCode) |
1545 | { | |
6f1abe2b JT |
1546 | print "\n /* Initialisation Section */\n\n" ; |
1547 | @line = @BootCode; | |
1548 | print_section(); | |
8e07c86e | 1549 | print "\n /* End of Initialisation Section */\n\n" ; |
93a17b20 | 1550 | } |
a0d0e21e | 1551 | |
e50aee73 | 1552 | print Q<<"EOF";; |
3280af22 | 1553 | # XSRETURN_YES; |
e50aee73 | 1554 | #]] |
e3b8966e GS |
1555 | # |
1556 | EOF | |
1557 | ||
8fc38fda | 1558 | warn("Please specify prototyping behavior for $filename (see perlxs manual)\n") |
1559 | unless $ProtoUsed ; | |
e50aee73 AD |
1560 | &Exit; |
1561 | ||
93a17b20 | 1562 | sub output_init { |
ddf6bed1 | 1563 | local($type, $num, $var, $init, $name_printed) = @_; |
a0d0e21e | 1564 | local($arg) = "ST(" . ($num - 1) . ")"; |
93a17b20 | 1565 | |
7ad6fb0b | 1566 | if( $init =~ /^=/ ) { |
ddf6bed1 IZ |
1567 | if ($name_printed) { |
1568 | eval qq/print " $init\\n"/; | |
1569 | } else { | |
1570 | eval qq/print "\\t$var $init\\n"/; | |
1571 | } | |
7ad6fb0b TM |
1572 | warn $@ if $@; |
1573 | } else { | |
1574 | if( $init =~ s/^\+// && $num ) { | |
ddf6bed1 IZ |
1575 | &generate_init($type, $num, $var, $name_printed); |
1576 | } elsif ($name_printed) { | |
1577 | print ";\n"; | |
1578 | $init =~ s/^;//; | |
7ad6fb0b TM |
1579 | } else { |
1580 | eval qq/print "\\t$var;\\n"/; | |
1581 | warn $@ if $@; | |
1582 | $init =~ s/^;//; | |
1583 | } | |
1584 | $deferred .= eval qq/"\\n\\t$init\\n"/; | |
1585 | warn $@ if $@; | |
1586 | } | |
93a17b20 LW |
1587 | } |
1588 | ||
c2960299 AD |
1589 | sub Warn |
1590 | { | |
1591 | # work out the line number | |
1592 | my $line_no = $line_no[@line_no - @line -1] ; | |
1593 | ||
1594 | print STDERR "@_ in $filename, line $line_no\n" ; | |
1595 | } | |
1596 | ||
1597 | sub blurt | |
1598 | { | |
1599 | Warn @_ ; | |
1600 | $errors ++ | |
1601 | } | |
1602 | ||
1603 | sub death | |
1604 | { | |
1605 | Warn @_ ; | |
1606 | exit 1 ; | |
1607 | } | |
8990e307 | 1608 | |
93a17b20 | 1609 | sub generate_init { |
2304df62 | 1610 | local($type, $num, $var) = @_; |
a0d0e21e | 1611 | local($arg) = "ST(" . ($num - 1) . ")"; |
2304df62 AD |
1612 | local($argoff) = $num - 1; |
1613 | local($ntype); | |
1614 | local($tk); | |
93a17b20 | 1615 | |
f06db76b | 1616 | $type = TidyType($type) ; |
c2960299 AD |
1617 | blurt("Error: '$type' not in typemap"), return |
1618 | unless defined($type_kind{$type}); | |
1619 | ||
2304df62 | 1620 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
8e07c86e | 1621 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 AD |
1622 | $tk = $type_kind{$type}; |
1623 | $tk =~ s/OBJ$/REF/ if $func_name =~ /DESTROY$/; | |
8e07c86e | 1624 | $type =~ tr/:/_/; |
615ca1f4 | 1625 | blurt("Error: No INPUT definition for type '$type', typekind '$type_kind{$type}' found"), return |
c2960299 | 1626 | unless defined $input_expr{$tk} ; |
2304df62 AD |
1627 | $expr = $input_expr{$tk}; |
1628 | if ($expr =~ /DO_ARRAY_ELEM/) { | |
c2960299 AD |
1629 | blurt("Error: '$subtype' not in typemap"), return |
1630 | unless defined($type_kind{$subtype}); | |
615ca1f4 | 1631 | blurt("Error: No INPUT definition for type '$subtype', typekind '$type_kind{$subtype}' found"), return |
c2960299 | 1632 | unless defined $input_expr{$type_kind{$subtype}} ; |
2304df62 | 1633 | $subexpr = $input_expr{$type_kind{$subtype}}; |
f8c11764 | 1634 | $subexpr =~ s/\$type/\$subtype/g; |
2304df62 AD |
1635 | $subexpr =~ s/ntype/subtype/g; |
1636 | $subexpr =~ s/\$arg/ST(ix_$var)/g; | |
1637 | $subexpr =~ s/\n\t/\n\t\t/g; | |
93d3b392 | 1638 | $subexpr =~ s/is not of (.*\")/[arg %d] is not of $1, ix_$var + 1/g; |
a0d0e21e | 1639 | $subexpr =~ s/\$var/${var}[ix_$var - $argoff]/; |
2304df62 AD |
1640 | $expr =~ s/DO_ARRAY_ELEM/$subexpr/; |
1641 | } | |
db3b9414 | 1642 | if ($expr =~ m#/\*.*scope.*\*/#i) { # "scope" in C comments |
1643 | $ScopeThisXSUB = 1; | |
1644 | } | |
2304df62 AD |
1645 | if (defined($defaults{$var})) { |
1646 | $expr =~ s/(\t+)/$1 /g; | |
1647 | $expr =~ s/ /\t/g; | |
ddf6bed1 IZ |
1648 | if ($name_printed) { |
1649 | print ";\n"; | |
1650 | } else { | |
1651 | eval qq/print "\\t$var;\\n"/; | |
1652 | warn $@ if $@; | |
1653 | } | |
a104f515 | 1654 | if ($defaults{$var} eq 'NO_INIT') { |
4628e4f8 GS |
1655 | $deferred .= eval qq/"\\n\\tif (items >= $num) {\\n$expr;\\n\\t}\\n"/; |
1656 | } else { | |
1657 | $deferred .= eval qq/"\\n\\tif (items < $num)\\n\\t $var = $defaults{$var};\\n\\telse {\\n$expr;\\n\\t}\\n"/; | |
1658 | } | |
7ad6fb0b | 1659 | warn $@ if $@; |
db3b9414 | 1660 | } elsif ($ScopeThisXSUB or $expr !~ /^\t\$var =/) { |
ddf6bed1 IZ |
1661 | if ($name_printed) { |
1662 | print ";\n"; | |
1663 | } else { | |
1664 | eval qq/print "\\t$var;\\n"/; | |
1665 | warn $@ if $@; | |
1666 | } | |
2304df62 | 1667 | $deferred .= eval qq/"\\n$expr;\\n"/; |
7ad6fb0b | 1668 | warn $@ if $@; |
2304df62 | 1669 | } else { |
ddf6bed1 IZ |
1670 | die "panic: do not know how to handle this branch for function pointers" |
1671 | if $name_printed; | |
2304df62 | 1672 | eval qq/print "$expr;\\n"/; |
7ad6fb0b | 1673 | warn $@ if $@; |
2304df62 | 1674 | } |
93a17b20 LW |
1675 | } |
1676 | ||
1677 | sub generate_output { | |
f8b8e0a4 | 1678 | local($type, $num, $var, $do_setmagic, $do_push) = @_; |
a0d0e21e | 1679 | local($arg) = "ST(" . ($num - ($num != 0)) . ")"; |
2304df62 AD |
1680 | local($argoff) = $num - 1; |
1681 | local($ntype); | |
93a17b20 | 1682 | |
f06db76b | 1683 | $type = TidyType($type) ; |
2304df62 | 1684 | if ($type =~ /^array\(([^,]*),(.*)\)/) { |
f8c11764 | 1685 | print "\t$arg = sv_newmortal();\n"; |
4bd3d083 | 1686 | print "\tsv_setpvn($arg, (char *)$var, $2 * sizeof($1));\n"; |
ef50df4b | 1687 | print "\tSvSETMAGIC($arg);\n" if $do_setmagic; |
2304df62 | 1688 | } else { |
f06db76b | 1689 | blurt("Error: '$type' not in typemap"), return |
2304df62 | 1690 | unless defined($type_kind{$type}); |
615ca1f4 | 1691 | blurt("Error: No OUTPUT definition for type '$type', typekind '$type_kind{$type}' found"), return |
c2960299 | 1692 | unless defined $output_expr{$type_kind{$type}} ; |
2304df62 AD |
1693 | ($ntype = $type) =~ s/\s*\*/Ptr/g; |
1694 | $ntype =~ s/\(\)//g; | |
8e07c86e | 1695 | ($subtype = $ntype) =~ s/(?:Array)?(?:Ptr)?$//; |
2304df62 AD |
1696 | $expr = $output_expr{$type_kind{$type}}; |
1697 | if ($expr =~ /DO_ARRAY_ELEM/) { | |
c2960299 AD |
1698 | blurt("Error: '$subtype' not in typemap"), return |
1699 | unless defined($type_kind{$subtype}); | |
615ca1f4 | 1700 | blurt("Error: No OUTPUT definition for type '$subtype', typekind '$type_kind{$subtype}' found"), return |
c2960299 | 1701 | unless defined $output_expr{$type_kind{$subtype}} ; |
2304df62 AD |
1702 | $subexpr = $output_expr{$type_kind{$subtype}}; |
1703 | $subexpr =~ s/ntype/subtype/g; | |
1704 | $subexpr =~ s/\$arg/ST(ix_$var)/g; | |
1705 | $subexpr =~ s/\$var/${var}[ix_$var]/g; | |
1706 | $subexpr =~ s/\n\t/\n\t\t/g; | |
1707 | $expr =~ s/DO_ARRAY_ELEM\n/$subexpr/; | |
a0d0e21e | 1708 | eval "print qq\a$expr\a"; |
7ad6fb0b | 1709 | warn $@ if $@; |
ef50df4b | 1710 | print "\t\tSvSETMAGIC(ST(ix_$var));\n" if $do_setmagic; |
2304df62 | 1711 | } |
a0d0e21e | 1712 | elsif ($var eq 'RETVAL') { |
a2baab1c IZ |
1713 | if ($expr =~ /^\t\$arg = new/) { |
1714 | # We expect that $arg has refcnt 1, so we need to | |
1715 | # mortalize it. | |
a0d0e21e | 1716 | eval "print qq\a$expr\a"; |
7ad6fb0b | 1717 | warn $@ if $@; |
f8b8e0a4 GS |
1718 | print "\tsv_2mortal(ST($num));\n"; |
1719 | print "\tSvSETMAGIC(ST($num));\n" if $do_setmagic; | |
93a17b20 | 1720 | } |
a2baab1c IZ |
1721 | elsif ($expr =~ /^\s*\$arg\s*=/) { |
1722 | # We expect that $arg has refcnt >=1, so we need | |
d689ffdd | 1723 | # to mortalize it! |
a2baab1c | 1724 | eval "print qq\a$expr\a"; |
7ad6fb0b | 1725 | warn $@ if $@; |
d689ffdd | 1726 | print "\tsv_2mortal(ST(0));\n"; |
ef50df4b | 1727 | print "\tSvSETMAGIC(ST(0));\n" if $do_setmagic; |
a2baab1c | 1728 | } |
2304df62 | 1729 | else { |
a2baab1c IZ |
1730 | # Just hope that the entry would safely write it |
1731 | # over an already mortalized value. By | |
1732 | # coincidence, something like $arg = &sv_undef | |
1733 | # works too. | |
8990e307 | 1734 | print "\tST(0) = sv_newmortal();\n"; |
a0d0e21e | 1735 | eval "print qq\a$expr\a"; |
7ad6fb0b | 1736 | warn $@ if $@; |
ef50df4b | 1737 | # new mortals don't have set magic |
463ee0b2 | 1738 | } |
2304df62 | 1739 | } |
f8b8e0a4 GS |
1740 | elsif ($do_push) { |
1741 | print "\tPUSHs(sv_newmortal());\n"; | |
1742 | $arg = "ST($num)"; | |
1743 | eval "print qq\a$expr\a"; | |
1744 | warn $@ if $@; | |
1745 | print "\tSvSETMAGIC($arg);\n" if $do_setmagic; | |
1746 | } | |
a0d0e21e LW |
1747 | elsif ($arg =~ /^ST\(\d+\)$/) { |
1748 | eval "print qq\a$expr\a"; | |
7ad6fb0b | 1749 | warn $@ if $@; |
ef50df4b | 1750 | print "\tSvSETMAGIC($arg);\n" if $do_setmagic; |
a0d0e21e | 1751 | } |
2304df62 | 1752 | } |
93a17b20 LW |
1753 | } |
1754 | ||
1755 | sub map_type { | |
ddf6bed1 | 1756 | my($type, $varname) = @_; |
93a17b20 | 1757 | |
8e07c86e AD |
1758 | $type =~ tr/:/_/; |
1759 | $type =~ s/^array\(([^,]*),(.*)\).*/$1 */s; | |
ddf6bed1 IZ |
1760 | if ($varname) { |
1761 | if ($varname && $type =~ / \( \s* \* (?= \s* \) ) /xg) { | |
1762 | (substr $type, pos $type, 0) = " $varname "; | |
1763 | } else { | |
1764 | $type .= "\t$varname"; | |
1765 | } | |
1766 | } | |
8e07c86e | 1767 | $type; |
93a17b20 | 1768 | } |
8990e307 | 1769 | |
e50aee73 AD |
1770 | |
1771 | sub Exit { | |
ff0cee69 | 1772 | # If this is VMS, the exit status has meaning to the shell, so we |
1773 | # use a predictable value (SS$_Normal or SS$_Abort) rather than an | |
1774 | # arbitrary number. | |
1775 | # exit ($Is_VMS ? ($errors ? 44 : 1) : $errors) ; | |
1776 | exit ($errors ? 1 : 0); | |
e50aee73 | 1777 | } |