Commit | Line | Data |
94caac6e |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
b15aa864 |
4 | #include "hook_op_check.h" |
94caac6e |
5 | #undef printf |
e807ee50 |
6 | #include "stolen_chunk_of_toke.c" |
94caac6e |
7 | #include <stdio.h> |
8 | #include <string.h> |
9 | |
9673d7ca |
10 | #ifndef Newx |
11 | # define Newx(v,n,t) New(0,v,n,t) |
12 | #endif /* !Newx */ |
13 | |
e81bee92 |
14 | static int dd_debug = 0; |
c630715a |
15 | |
94caac6e |
16 | #define LEX_NORMAL 10 |
17 | #define LEX_INTERPNORMAL 9 |
18 | |
94caac6e |
19 | /* flag to trigger removal of temporary declaree sub */ |
20 | |
21 | static int in_declare = 0; |
22 | |
96f12726 |
23 | /* in 5.10, PL_parser will be NULL if we aren't parsing, and PL_lex_stuff |
24 | is a lookup into it - so if anything else we can use to tell, so we |
25 | need to be a bit more careful if PL_parser exists */ |
26 | |
27 | #define DD_AM_LEXING_CHECK (PL_lex_state == LEX_NORMAL || PL_lex_state == LEX_INTERPNORMAL) |
28 | |
f19b3507 |
29 | #if defined(PL_parser) || defined(PERL_5_9_PLUS) |
96f12726 |
30 | #define DD_HAVE_PARSER PL_parser |
31 | #define DD_HAVE_LEX_STUFF (PL_parser && PL_lex_stuff) |
32 | #define DD_AM_LEXING (PL_parser && DD_AM_LEXING_CHECK) |
33 | #else |
34 | #define DD_HAVE_PARSER 1 |
35 | #define DD_HAVE_LEX_STUFF PL_lex_stuff |
36 | #define DD_AM_LEXING DD_AM_LEXING_CHECK |
37 | #endif |
38 | |
3ea50944 |
39 | static OP *previous_op = NULL; |
40 | |
72f20f69 |
41 | /* thing that decides whether we're dealing with a declarator */ |
42 | |
43 | int dd_is_declarator(pTHX_ char* name) { |
44 | HV* is_declarator; |
45 | SV** is_declarator_pack_ref; |
46 | HV* is_declarator_pack_hash; |
47 | SV** is_declarator_flag_ref; |
48 | int dd_flags; |
49 | |
50 | is_declarator = get_hv("Devel::Declare::declarators", FALSE); |
51 | |
52 | if (!is_declarator) |
53 | return -1; |
54 | |
569ac469 |
55 | /* $declarators{$current_package_name} */ |
56 | |
9603b8dc |
57 | if (!HvNAME(PL_curstash)) |
f2a41aa1 |
58 | return -1; |
9603b8dc |
59 | |
72f20f69 |
60 | is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash), |
61 | strlen(HvNAME(PL_curstash)), FALSE); |
62 | |
63 | if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref)) |
64 | return -1; /* not a hashref */ |
65 | |
66 | is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref); |
67 | |
569ac469 |
68 | /* $declarators{$current_package_name}{$name} */ |
69 | |
72f20f69 |
70 | is_declarator_flag_ref = hv_fetch( |
71 | is_declarator_pack_hash, name, |
72 | strlen(name), FALSE |
73 | ); |
74 | |
75 | /* requires SvIOK as well as TRUE since flags not being an int is useless */ |
76 | |
77 | if (!is_declarator_flag_ref |
78 | || !SvIOK(*is_declarator_flag_ref) |
79 | || !SvTRUE(*is_declarator_flag_ref)) |
80 | return -1; |
81 | |
82 | dd_flags = SvIVX(*is_declarator_flag_ref); |
83 | |
84 | return dd_flags; |
85 | } |
86 | |
569ac469 |
87 | /* callback thingy */ |
88 | |
a9bd9b5e |
89 | void dd_linestr_callback (pTHX_ char* type, char* name) { |
569ac469 |
90 | |
91 | char* linestr = SvPVX(PL_linestr); |
a9bd9b5e |
92 | int offset = PL_bufptr - linestr; |
569ac469 |
93 | |
569ac469 |
94 | dSP; |
95 | |
96 | ENTER; |
97 | SAVETMPS; |
98 | |
99 | PUSHMARK(SP); |
100 | XPUSHs(sv_2mortal(newSVpv(type, 0))); |
101 | XPUSHs(sv_2mortal(newSVpv(name, 0))); |
102 | XPUSHs(sv_2mortal(newSViv(offset))); |
103 | PUTBACK; |
104 | |
04a8a223 |
105 | call_pv("Devel::Declare::linestr_callback", G_VOID|G_DISCARD); |
569ac469 |
106 | |
569ac469 |
107 | FREETMPS; |
108 | LEAVE; |
109 | } |
110 | |
111 | char* dd_get_linestr(pTHX) { |
5f0b59d5 |
112 | if (!DD_HAVE_PARSER) { |
113 | return NULL; |
114 | } |
569ac469 |
115 | return SvPVX(PL_linestr); |
116 | } |
117 | |
118 | void dd_set_linestr(pTHX_ char* new_value) { |
6f5220b7 |
119 | unsigned int new_len = strlen(new_value); |
569ac469 |
120 | |
ce9a252b |
121 | if (SvLEN(PL_linestr) < new_len) { |
f9eb22eb |
122 | croak("forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr)); |
ce9a252b |
123 | } |
124 | |
125 | SvGROW(PL_linestr, new_len); |
569ac469 |
126 | |
127 | memcpy(SvPVX(PL_linestr), new_value, new_len+1); |
128 | |
129 | SvCUR_set(PL_linestr, new_len); |
130 | |
131 | PL_bufend = SvPVX(PL_linestr) + new_len; |
132 | } |
133 | |
04a8a223 |
134 | char* dd_get_lex_stuff(pTHX) { |
96f12726 |
135 | return (DD_HAVE_LEX_STUFF ? SvPVX(PL_lex_stuff) : ""); |
04a8a223 |
136 | } |
137 | |
bd85a06e |
138 | void dd_clear_lex_stuff(pTHX) { |
96f12726 |
139 | if (DD_HAVE_PARSER) |
f05cbc90 |
140 | PL_lex_stuff = (SV*)NULL; |
04a8a223 |
141 | } |
142 | |
143 | char* dd_get_curstash_name(pTHX) { |
144 | return HvNAME(PL_curstash); |
145 | } |
146 | |
022eb0cc |
147 | int dd_get_linestr_offset(pTHX) { |
0da63271 |
148 | char* linestr; |
149 | if (!DD_HAVE_PARSER) { |
150 | return -1; |
151 | } |
152 | linestr = SvPVX(PL_linestr); |
022eb0cc |
153 | return PL_bufptr - linestr; |
154 | } |
155 | |
840ebcbb |
156 | char* dd_move_past_token (pTHX_ char* s) { |
923c07a8 |
157 | |
158 | /* |
159 | * buffer will be at the beginning of the declarator, -unless- the |
160 | * declarator is at EOL in which case it'll be the next useful line |
161 | * so we don't short-circuit out if we don't find the declarator |
162 | */ |
163 | |
164 | while (s < PL_bufend && isSPACE(*s)) s++; |
165 | if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf))) |
166 | s += strlen(PL_tokenbuf); |
167 | return s; |
168 | } |
169 | |
840ebcbb |
170 | int dd_toke_move_past_token (pTHX_ int offset) { |
04a8a223 |
171 | char* base_s = SvPVX(PL_linestr) + offset; |
172 | char* s = dd_move_past_token(aTHX_ base_s); |
173 | return s - base_s; |
174 | } |
175 | |
923c07a8 |
176 | int dd_toke_scan_word(pTHX_ int offset, int handle_package) { |
177 | char tmpbuf[sizeof PL_tokenbuf]; |
178 | char* base_s = SvPVX(PL_linestr) + offset; |
179 | STRLEN len; |
180 | char* s = scan_word(base_s, tmpbuf, sizeof tmpbuf, handle_package, &len); |
181 | return s - base_s; |
182 | } |
183 | |
f11d21b2 |
184 | int dd_toke_scan_ident(pTHX_ int offset) { |
185 | char tmpbuf[sizeof PL_tokenbuf]; |
186 | char* base_s = SvPVX(PL_linestr) + offset; |
f11d21b2 |
187 | char* s = scan_ident(base_s, PL_bufend, tmpbuf, sizeof tmpbuf, 0); |
188 | return s - base_s; |
189 | } |
190 | |
923c07a8 |
191 | int dd_toke_scan_str(pTHX_ int offset) { |
192 | char* base_s = SvPVX(PL_linestr) + offset; |
193 | char* s = scan_str(base_s, FALSE, FALSE); |
194 | return s - base_s; |
195 | } |
196 | |
197 | int dd_toke_skipspace(pTHX_ int offset) { |
198 | char* base_s = SvPVX(PL_linestr) + offset; |
199 | char* s = skipspace(base_s); |
200 | return s - base_s; |
201 | } |
202 | |
94caac6e |
203 | /* replacement PL_check rv2cv entry */ |
204 | |
6e67754a |
205 | STATIC OP *dd_ck_rv2cv(pTHX_ OP *o, void *user_data) { |
19b7ec0f |
206 | dSP; |
94caac6e |
207 | OP* kid; |
0ba8c7aa |
208 | int dd_flags; |
94caac6e |
209 | |
6f5220b7 |
210 | PERL_UNUSED_VAR(user_data); |
211 | |
94caac6e |
212 | if (in_declare) { |
e81bee92 |
213 | if (dd_debug) { |
214 | printf("Deconstructing declare\n"); |
215 | printf("PL_bufptr: %s\n", PL_bufptr); |
216 | printf("bufend at: %i\n", PL_bufend - PL_bufptr); |
217 | printf("linestr: %s\n", SvPVX(PL_linestr)); |
218 | printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr)); |
219 | } |
001d53d0 |
220 | |
001d53d0 |
221 | ENTER; |
222 | SAVETMPS; |
19b7ec0f |
223 | |
001d53d0 |
224 | PUSHMARK(SP); |
19b7ec0f |
225 | |
001d53d0 |
226 | call_pv("Devel::Declare::done_declare", G_VOID|G_DISCARD); |
227 | |
228 | FREETMPS; |
229 | LEAVE; |
230 | |
e81bee92 |
231 | if (dd_debug) { |
232 | printf("PL_bufptr: %s\n", PL_bufptr); |
233 | printf("bufend at: %i\n", PL_bufend - PL_bufptr); |
234 | printf("linestr: %s\n", SvPVX(PL_linestr)); |
235 | printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr)); |
236 | printf("actual len: %i\n", strlen(PL_bufptr)); |
237 | } |
94caac6e |
238 | return o; |
239 | } |
240 | |
241 | kid = cUNOPo->op_first; |
242 | |
243 | if (kid->op_type != OP_GV) /* not a GV so ignore */ |
244 | return o; |
245 | |
96f12726 |
246 | if (!DD_AM_LEXING) |
94caac6e |
247 | return o; /* not lexing? */ |
248 | |
e81bee92 |
249 | if (dd_debug) { |
250 | printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv)); |
251 | } |
840ebcbb |
252 | |
72f20f69 |
253 | dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv)); |
94caac6e |
254 | |
72f20f69 |
255 | if (dd_flags == -1) |
94caac6e |
256 | return o; |
257 | |
e81bee92 |
258 | if (dd_debug) { |
259 | printf("dd_flags are: %i\n", dd_flags); |
260 | printf("PL_tokenbuf: %s\n", PL_tokenbuf); |
261 | } |
840ebcbb |
262 | |
a9bd9b5e |
263 | dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv)); |
94caac6e |
264 | |
53e3ab32 |
265 | return o; |
266 | } |
267 | |
b7505981 |
268 | OP* dd_pp_entereval(pTHX) { |
269 | dSP; |
b7505981 |
270 | STRLEN len; |
271 | const char* s; |
c93bc23e |
272 | SV *sv; |
273 | #ifdef PERL_5_9_PLUS |
274 | SV *saved_hh; |
275 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
276 | saved_hh = POPs; |
277 | } |
278 | #endif |
279 | sv = POPs; |
b7505981 |
280 | if (SvPOK(sv)) { |
e81bee92 |
281 | if (dd_debug) { |
282 | printf("mangling eval sv\n"); |
283 | } |
b7505981 |
284 | if (SvREADONLY(sv)) |
285 | sv = sv_2mortal(newSVsv(sv)); |
286 | s = SvPVX(sv); |
287 | len = SvCUR(sv); |
288 | if (!len || s[len-1] != ';') { |
289 | if (!(SvFLAGS(sv) & SVs_TEMP)) |
290 | sv = sv_2mortal(newSVsv(sv)); |
291 | sv_catpvn(sv, "\n;", 2); |
53e3ab32 |
292 | } |
b7505981 |
293 | SvGROW(sv, 8192); |
53e3ab32 |
294 | } |
b7505981 |
295 | PUSHs(sv); |
c93bc23e |
296 | #ifdef PERL_5_9_PLUS |
297 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
298 | PUSHs(saved_hh); |
299 | } |
300 | #endif |
b7505981 |
301 | return PL_ppaddr[OP_ENTEREVAL](aTHX); |
302 | } |
53e3ab32 |
303 | |
6e67754a |
304 | STATIC OP *dd_ck_entereval(pTHX_ OP *o, void *user_data) { |
6f5220b7 |
305 | PERL_UNUSED_VAR(user_data); |
306 | |
d8e65fc8 |
307 | if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL]) |
308 | o->op_ppaddr = dd_pp_entereval; |
94caac6e |
309 | return o; |
310 | } |
311 | |
6a0bcf35 |
312 | static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen) |
313 | { |
314 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
315 | SvGROW(sv, 8192); /* please try not to have a line longer than this :) */ |
316 | /* filter_del(dd_filter_realloc); */ |
317 | return count; |
318 | } |
319 | |
6e67754a |
320 | STATIC OP *dd_ck_const(pTHX_ OP *o, void *user_data) { |
bedac9ff |
321 | int dd_flags; |
04a8a223 |
322 | char* name; |
bedac9ff |
323 | |
6f5220b7 |
324 | PERL_UNUSED_VAR(user_data); |
325 | |
34335b63 |
326 | /* if this is set, we just grabbed a delimited string or something, |
327 | not a bareword, so NO TOUCHY */ |
328 | |
79abf18a |
329 | if (DD_HAVE_LEX_STUFF) |
34335b63 |
330 | return o; |
331 | |
bedac9ff |
332 | /* don't try and look this up if it's not a string const */ |
333 | if (!SvPOK(cSVOPo->op_sv)) |
334 | return o; |
335 | |
04a8a223 |
336 | name = SvPVX(cSVOPo->op_sv); |
337 | |
338 | dd_flags = dd_is_declarator(aTHX_ name); |
bedac9ff |
339 | |
a9fb5fb1 |
340 | if (dd_flags == -1) |
bedac9ff |
341 | return o; |
342 | |
c48ac26f |
343 | switch (PL_lex_inwhat) { |
344 | case OP_QR: |
345 | case OP_MATCH: |
346 | case OP_SUBST: |
347 | case OP_TRANS: |
f2a41aa1 |
348 | case OP_BACKTICK: |
349 | case OP_STRINGIFY: |
c48ac26f |
350 | return o; |
351 | break; |
352 | default: |
353 | break; |
8d96afb7 |
354 | } |
a9bd9b5e |
355 | dd_linestr_callback(aTHX_ "const", name); |
bedac9ff |
356 | |
3ea50944 |
357 | return o; |
358 | } |
359 | |
94caac6e |
360 | static int initialized = 0; |
361 | |
362 | MODULE = Devel::Declare PACKAGE = Devel::Declare |
363 | |
364 | PROTOTYPES: DISABLE |
365 | |
366 | void |
367 | setup() |
368 | CODE: |
369 | if (!initialized++) { |
6e67754a |
370 | hook_op_check(OP_RV2CV, dd_ck_rv2cv, NULL); |
371 | hook_op_check(OP_ENTEREVAL, dd_ck_entereval, NULL); |
372 | hook_op_check(OP_CONST, dd_ck_const, NULL); |
94caac6e |
373 | } |
6a0bcf35 |
374 | filter_add(dd_filter_realloc, NULL); |
569ac469 |
375 | |
376 | char* |
377 | get_linestr() |
378 | CODE: |
379 | RETVAL = dd_get_linestr(aTHX); |
380 | OUTPUT: |
381 | RETVAL |
923c07a8 |
382 | |
383 | void |
384 | set_linestr(char* new_value) |
385 | CODE: |
386 | dd_set_linestr(aTHX_ new_value); |
387 | |
04a8a223 |
388 | char* |
389 | get_lex_stuff() |
390 | CODE: |
391 | RETVAL = dd_get_lex_stuff(aTHX); |
392 | OUTPUT: |
393 | RETVAL |
394 | |
395 | void |
396 | clear_lex_stuff() |
397 | CODE: |
398 | dd_clear_lex_stuff(aTHX); |
399 | |
400 | char* |
401 | get_curstash_name() |
402 | CODE: |
403 | RETVAL = dd_get_curstash_name(aTHX); |
404 | OUTPUT: |
405 | RETVAL |
406 | |
923c07a8 |
407 | int |
022eb0cc |
408 | get_linestr_offset() |
409 | CODE: |
410 | RETVAL = dd_get_linestr_offset(aTHX); |
411 | OUTPUT: |
412 | RETVAL |
413 | |
414 | int |
923c07a8 |
415 | toke_scan_word(int offset, int handle_package) |
416 | CODE: |
417 | RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package); |
418 | OUTPUT: |
419 | RETVAL |
420 | |
421 | int |
04a8a223 |
422 | toke_move_past_token(int offset); |
423 | CODE: |
424 | RETVAL = dd_toke_move_past_token(aTHX_ offset); |
425 | OUTPUT: |
426 | RETVAL |
427 | |
428 | int |
923c07a8 |
429 | toke_scan_str(int offset); |
430 | CODE: |
431 | RETVAL = dd_toke_scan_str(aTHX_ offset); |
432 | OUTPUT: |
433 | RETVAL |
434 | |
435 | int |
f11d21b2 |
436 | toke_scan_ident(int offset) |
437 | CODE: |
438 | RETVAL = dd_toke_scan_ident(aTHX_ offset); |
439 | OUTPUT: |
440 | RETVAL |
441 | |
442 | int |
923c07a8 |
443 | toke_skipspace(int offset) |
444 | CODE: |
445 | RETVAL = dd_toke_skipspace(aTHX_ offset); |
446 | OUTPUT: |
447 | RETVAL |
04a8a223 |
448 | |
449 | int |
450 | get_in_declare() |
451 | CODE: |
452 | RETVAL = in_declare; |
453 | OUTPUT: |
454 | RETVAL |
455 | |
456 | void |
457 | set_in_declare(int value) |
458 | CODE: |
459 | in_declare = value; |
e81bee92 |
460 | |
461 | BOOT: |
462 | if (getenv ("DD_DEBUG")) { |
463 | dd_debug = 1; |
464 | } |