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