Commit | Line | Data |
94caac6e |
1 | #define PERL_CORE |
2 | #define PERL_NO_GET_CONTEXT |
94caac6e |
3 | #include "EXTERN.h" |
4 | #include "perl.h" |
5 | #include "XSUB.h" |
6 | #undef printf |
e807ee50 |
7 | #include "stolen_chunk_of_toke.c" |
94caac6e |
8 | #include <stdio.h> |
9 | #include <string.h> |
10 | |
9673d7ca |
11 | #ifndef Newx |
12 | # define Newx(v,n,t) New(0,v,n,t) |
13 | #endif /* !Newx */ |
14 | |
840ebcbb |
15 | #if 1 |
16 | #define DD_HAS_TRAITS |
17 | #endif |
18 | |
53e3ab32 |
19 | #if 0 |
20 | #define DD_DEBUG |
21 | #endif |
c630715a |
22 | |
840ebcbb |
23 | #define DD_HANDLE_NAME 1 |
24 | #define DD_HANDLE_PROTO 2 |
25 | #define DD_HANDLE_PACKAGE 8 |
26 | |
c630715a |
27 | #ifdef DD_DEBUG |
28 | #define DD_DEBUG_S printf("Buffer: %s\n", s); |
29 | #else |
30 | #define DD_DEBUG_S |
31 | #endif |
32 | |
94caac6e |
33 | #define LEX_NORMAL 10 |
34 | #define LEX_INTERPNORMAL 9 |
35 | |
94caac6e |
36 | /* flag to trigger removal of temporary declaree sub */ |
37 | |
38 | static int in_declare = 0; |
39 | |
72f20f69 |
40 | /* thing that decides whether we're dealing with a declarator */ |
41 | |
42 | int dd_is_declarator(pTHX_ char* name) { |
43 | HV* is_declarator; |
44 | SV** is_declarator_pack_ref; |
45 | HV* is_declarator_pack_hash; |
46 | SV** is_declarator_flag_ref; |
47 | int dd_flags; |
48 | |
49 | is_declarator = get_hv("Devel::Declare::declarators", FALSE); |
50 | |
51 | if (!is_declarator) |
52 | return -1; |
53 | |
569ac469 |
54 | /* $declarators{$current_package_name} */ |
55 | |
72f20f69 |
56 | is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash), |
57 | strlen(HvNAME(PL_curstash)), FALSE); |
58 | |
59 | if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref)) |
60 | return -1; /* not a hashref */ |
61 | |
62 | is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref); |
63 | |
569ac469 |
64 | /* $declarators{$current_package_name}{$name} */ |
65 | |
72f20f69 |
66 | is_declarator_flag_ref = hv_fetch( |
67 | is_declarator_pack_hash, name, |
68 | strlen(name), FALSE |
69 | ); |
70 | |
71 | /* requires SvIOK as well as TRUE since flags not being an int is useless */ |
72 | |
73 | if (!is_declarator_flag_ref |
74 | || !SvIOK(*is_declarator_flag_ref) |
75 | || !SvTRUE(*is_declarator_flag_ref)) |
76 | return -1; |
77 | |
78 | dd_flags = SvIVX(*is_declarator_flag_ref); |
79 | |
80 | return dd_flags; |
81 | } |
82 | |
569ac469 |
83 | /* callback thingy */ |
84 | |
a9bd9b5e |
85 | void dd_linestr_callback (pTHX_ char* type, char* name) { |
569ac469 |
86 | |
87 | char* linestr = SvPVX(PL_linestr); |
a9bd9b5e |
88 | int offset = PL_bufptr - linestr; |
569ac469 |
89 | |
569ac469 |
90 | dSP; |
91 | |
92 | ENTER; |
93 | SAVETMPS; |
94 | |
95 | PUSHMARK(SP); |
96 | XPUSHs(sv_2mortal(newSVpv(type, 0))); |
97 | XPUSHs(sv_2mortal(newSVpv(name, 0))); |
98 | XPUSHs(sv_2mortal(newSViv(offset))); |
99 | PUTBACK; |
100 | |
04a8a223 |
101 | call_pv("Devel::Declare::linestr_callback", G_VOID|G_DISCARD); |
569ac469 |
102 | |
569ac469 |
103 | FREETMPS; |
104 | LEAVE; |
105 | } |
106 | |
107 | char* dd_get_linestr(pTHX) { |
108 | return SvPVX(PL_linestr); |
109 | } |
110 | |
111 | void dd_set_linestr(pTHX_ char* new_value) { |
112 | int new_len = strlen(new_value); |
113 | char* old_linestr = SvPVX(PL_linestr); |
114 | |
115 | SvGROW(PL_linestr, strlen(new_value)); |
116 | |
117 | if (SvPVX(PL_linestr) != old_linestr) |
118 | Perl_croak(aTHX_ "forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr)); |
119 | |
120 | memcpy(SvPVX(PL_linestr), new_value, new_len+1); |
121 | |
122 | SvCUR_set(PL_linestr, new_len); |
123 | |
124 | PL_bufend = SvPVX(PL_linestr) + new_len; |
125 | } |
126 | |
04a8a223 |
127 | char* dd_get_lex_stuff(pTHX) { |
840ebcbb |
128 | return (PL_lex_stuff ? SvPVX(PL_lex_stuff) : ""); |
04a8a223 |
129 | } |
130 | |
131 | char* dd_clear_lex_stuff(pTHX) { |
132 | PL_lex_stuff = Nullsv; |
133 | } |
134 | |
135 | char* dd_get_curstash_name(pTHX) { |
136 | return HvNAME(PL_curstash); |
137 | } |
138 | |
022eb0cc |
139 | int dd_get_linestr_offset(pTHX) { |
140 | char* linestr = SvPVX(PL_linestr); |
141 | return PL_bufptr - linestr; |
142 | } |
143 | |
840ebcbb |
144 | char* dd_move_past_token (pTHX_ char* s) { |
923c07a8 |
145 | |
146 | /* |
147 | * buffer will be at the beginning of the declarator, -unless- the |
148 | * declarator is at EOL in which case it'll be the next useful line |
149 | * so we don't short-circuit out if we don't find the declarator |
150 | */ |
151 | |
152 | while (s < PL_bufend && isSPACE(*s)) s++; |
153 | if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf))) |
154 | s += strlen(PL_tokenbuf); |
155 | return s; |
156 | } |
157 | |
840ebcbb |
158 | int dd_toke_move_past_token (pTHX_ int offset) { |
04a8a223 |
159 | char* base_s = SvPVX(PL_linestr) + offset; |
160 | char* s = dd_move_past_token(aTHX_ base_s); |
161 | return s - base_s; |
162 | } |
163 | |
923c07a8 |
164 | int dd_toke_scan_word(pTHX_ int offset, int handle_package) { |
165 | char tmpbuf[sizeof PL_tokenbuf]; |
166 | char* base_s = SvPVX(PL_linestr) + offset; |
167 | STRLEN len; |
168 | char* s = scan_word(base_s, tmpbuf, sizeof tmpbuf, handle_package, &len); |
169 | return s - base_s; |
170 | } |
171 | |
172 | int dd_toke_scan_str(pTHX_ int offset) { |
173 | char* base_s = SvPVX(PL_linestr) + offset; |
174 | char* s = scan_str(base_s, FALSE, FALSE); |
175 | return s - base_s; |
176 | } |
177 | |
178 | int dd_toke_skipspace(pTHX_ int offset) { |
179 | char* base_s = SvPVX(PL_linestr) + offset; |
180 | char* s = skipspace(base_s); |
181 | return s - base_s; |
182 | } |
183 | |
94caac6e |
184 | /* replacement PL_check rv2cv entry */ |
185 | |
bedac9ff |
186 | STATIC OP *(*dd_old_ck_rv2cv)(pTHX_ OP *op); |
187 | |
94caac6e |
188 | STATIC OP *dd_ck_rv2cv(pTHX_ OP *o) { |
189 | OP* kid; |
0ba8c7aa |
190 | int dd_flags; |
9026391e |
191 | char* cb_args[6]; |
94caac6e |
192 | |
193 | o = dd_old_ck_rv2cv(aTHX_ o); /* let the original do its job */ |
194 | |
195 | if (in_declare) { |
840ebcbb |
196 | cb_args[0] = NULL; |
197 | #ifdef DD_DEBUG |
198 | printf("Deconstructing declare\n"); |
199 | printf("PL_bufptr: %s\n", PL_bufptr); |
200 | printf("bufend at: %i\n", PL_bufend - PL_bufptr); |
201 | printf("linestr: %s\n", SvPVX(PL_linestr)); |
202 | printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr)); |
203 | #endif |
204 | call_argv("Devel::Declare::done_declare", G_VOID|G_DISCARD, cb_args); |
205 | #ifdef DD_DEBUG |
206 | printf("PL_bufptr: %s\n", PL_bufptr); |
207 | printf("bufend at: %i\n", PL_bufend - PL_bufptr); |
208 | printf("linestr: %s\n", SvPVX(PL_linestr)); |
209 | printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr)); |
210 | printf("actual len: %i\n", strlen(PL_bufptr)); |
211 | #endif |
94caac6e |
212 | return o; |
213 | } |
214 | |
215 | kid = cUNOPo->op_first; |
216 | |
217 | if (kid->op_type != OP_GV) /* not a GV so ignore */ |
218 | return o; |
219 | |
220 | if (PL_lex_state != LEX_NORMAL && PL_lex_state != LEX_INTERPNORMAL) |
221 | return o; /* not lexing? */ |
222 | |
840ebcbb |
223 | #ifdef DD_DEBUG |
224 | printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv)); |
225 | #endif |
226 | |
72f20f69 |
227 | dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv)); |
94caac6e |
228 | |
72f20f69 |
229 | if (dd_flags == -1) |
94caac6e |
230 | return o; |
231 | |
840ebcbb |
232 | #ifdef DD_DEBUG |
233 | printf("dd_flags are: %i\n", dd_flags); |
234 | #endif |
235 | |
236 | #ifdef DD_DEBUG |
237 | printf("PL_tokenbuf: %s\n", PL_tokenbuf); |
238 | #endif |
239 | |
a9bd9b5e |
240 | dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv)); |
94caac6e |
241 | |
53e3ab32 |
242 | return o; |
243 | } |
244 | |
bedac9ff |
245 | STATIC OP *(*dd_old_ck_entereval)(pTHX_ OP *op); |
246 | |
b7505981 |
247 | OP* dd_pp_entereval(pTHX) { |
248 | dSP; |
249 | dPOPss; |
250 | STRLEN len; |
251 | const char* s; |
252 | if (SvPOK(sv)) { |
53e3ab32 |
253 | #ifdef DD_DEBUG |
b7505981 |
254 | printf("mangling eval sv\n"); |
53e3ab32 |
255 | #endif |
b7505981 |
256 | if (SvREADONLY(sv)) |
257 | sv = sv_2mortal(newSVsv(sv)); |
258 | s = SvPVX(sv); |
259 | len = SvCUR(sv); |
260 | if (!len || s[len-1] != ';') { |
261 | if (!(SvFLAGS(sv) & SVs_TEMP)) |
262 | sv = sv_2mortal(newSVsv(sv)); |
263 | sv_catpvn(sv, "\n;", 2); |
53e3ab32 |
264 | } |
b7505981 |
265 | SvGROW(sv, 8192); |
53e3ab32 |
266 | } |
b7505981 |
267 | PUSHs(sv); |
268 | return PL_ppaddr[OP_ENTEREVAL](aTHX); |
269 | } |
53e3ab32 |
270 | |
b7505981 |
271 | STATIC OP *dd_ck_entereval(pTHX_ OP *o) { |
272 | o = dd_old_ck_entereval(aTHX_ o); /* let the original do its job */ |
d8e65fc8 |
273 | if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL]) |
274 | o->op_ppaddr = dd_pp_entereval; |
94caac6e |
275 | return o; |
276 | } |
277 | |
6a0bcf35 |
278 | static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen) |
279 | { |
280 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
281 | SvGROW(sv, 8192); /* please try not to have a line longer than this :) */ |
282 | /* filter_del(dd_filter_realloc); */ |
283 | return count; |
284 | } |
285 | |
bedac9ff |
286 | STATIC OP *(*dd_old_ck_const)(pTHX_ OP*op); |
287 | |
288 | STATIC OP *dd_ck_const(pTHX_ OP *o) { |
bedac9ff |
289 | int dd_flags; |
290 | char* s; |
04a8a223 |
291 | char* name; |
bedac9ff |
292 | |
293 | o = dd_old_ck_const(aTHX_ o); /* let the original do its job */ |
294 | |
34335b63 |
295 | /* if this is set, we just grabbed a delimited string or something, |
296 | not a bareword, so NO TOUCHY */ |
297 | |
298 | if (PL_lex_stuff) |
299 | return o; |
300 | |
bedac9ff |
301 | /* don't try and look this up if it's not a string const */ |
302 | if (!SvPOK(cSVOPo->op_sv)) |
303 | return o; |
304 | |
04a8a223 |
305 | name = SvPVX(cSVOPo->op_sv); |
306 | |
307 | dd_flags = dd_is_declarator(aTHX_ name); |
bedac9ff |
308 | |
a9fb5fb1 |
309 | if (dd_flags == -1) |
bedac9ff |
310 | return o; |
311 | |
a9bd9b5e |
312 | dd_linestr_callback(aTHX_ "const", name); |
bedac9ff |
313 | |
bedac9ff |
314 | return o; |
315 | } |
316 | |
94caac6e |
317 | static int initialized = 0; |
318 | |
319 | MODULE = Devel::Declare PACKAGE = Devel::Declare |
320 | |
321 | PROTOTYPES: DISABLE |
322 | |
323 | void |
324 | setup() |
325 | CODE: |
326 | if (!initialized++) { |
327 | dd_old_ck_rv2cv = PL_check[OP_RV2CV]; |
328 | PL_check[OP_RV2CV] = dd_ck_rv2cv; |
b7505981 |
329 | dd_old_ck_entereval = PL_check[OP_ENTEREVAL]; |
330 | PL_check[OP_ENTEREVAL] = dd_ck_entereval; |
bedac9ff |
331 | dd_old_ck_const = PL_check[OP_CONST]; |
332 | PL_check[OP_CONST] = dd_ck_const; |
94caac6e |
333 | } |
6a0bcf35 |
334 | filter_add(dd_filter_realloc, NULL); |
569ac469 |
335 | |
336 | char* |
337 | get_linestr() |
338 | CODE: |
339 | RETVAL = dd_get_linestr(aTHX); |
340 | OUTPUT: |
341 | RETVAL |
923c07a8 |
342 | |
343 | void |
344 | set_linestr(char* new_value) |
345 | CODE: |
346 | dd_set_linestr(aTHX_ new_value); |
347 | |
04a8a223 |
348 | char* |
349 | get_lex_stuff() |
350 | CODE: |
351 | RETVAL = dd_get_lex_stuff(aTHX); |
352 | OUTPUT: |
353 | RETVAL |
354 | |
355 | void |
356 | clear_lex_stuff() |
357 | CODE: |
358 | dd_clear_lex_stuff(aTHX); |
359 | |
360 | char* |
361 | get_curstash_name() |
362 | CODE: |
363 | RETVAL = dd_get_curstash_name(aTHX); |
364 | OUTPUT: |
365 | RETVAL |
366 | |
923c07a8 |
367 | int |
022eb0cc |
368 | get_linestr_offset() |
369 | CODE: |
370 | RETVAL = dd_get_linestr_offset(aTHX); |
371 | OUTPUT: |
372 | RETVAL |
373 | |
374 | int |
923c07a8 |
375 | toke_scan_word(int offset, int handle_package) |
376 | CODE: |
377 | RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package); |
378 | OUTPUT: |
379 | RETVAL |
380 | |
381 | int |
04a8a223 |
382 | toke_move_past_token(int offset); |
383 | CODE: |
384 | RETVAL = dd_toke_move_past_token(aTHX_ offset); |
385 | OUTPUT: |
386 | RETVAL |
387 | |
388 | int |
923c07a8 |
389 | toke_scan_str(int offset); |
390 | CODE: |
391 | RETVAL = dd_toke_scan_str(aTHX_ offset); |
392 | OUTPUT: |
393 | RETVAL |
394 | |
395 | int |
396 | toke_skipspace(int offset) |
397 | CODE: |
398 | RETVAL = dd_toke_skipspace(aTHX_ offset); |
399 | OUTPUT: |
400 | RETVAL |
04a8a223 |
401 | |
402 | int |
403 | get_in_declare() |
404 | CODE: |
405 | RETVAL = in_declare; |
406 | OUTPUT: |
407 | RETVAL |
408 | |
409 | void |
410 | set_in_declare(int value) |
411 | CODE: |
412 | in_declare = value; |