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 | |
72f20f69 |
39 | /* thing that decides whether we're dealing with a declarator */ |
40 | |
41 | int dd_is_declarator(pTHX_ char* name) { |
42 | HV* is_declarator; |
43 | SV** is_declarator_pack_ref; |
44 | HV* is_declarator_pack_hash; |
45 | SV** is_declarator_flag_ref; |
46 | int dd_flags; |
47 | |
48 | is_declarator = get_hv("Devel::Declare::declarators", FALSE); |
49 | |
50 | if (!is_declarator) |
51 | return -1; |
52 | |
569ac469 |
53 | /* $declarators{$current_package_name} */ |
54 | |
9603b8dc |
55 | if (!HvNAME(PL_curstash)) |
56 | return -1; |
57 | |
72f20f69 |
58 | is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash), |
59 | strlen(HvNAME(PL_curstash)), FALSE); |
60 | |
61 | if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref)) |
62 | return -1; /* not a hashref */ |
63 | |
64 | is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref); |
65 | |
569ac469 |
66 | /* $declarators{$current_package_name}{$name} */ |
67 | |
72f20f69 |
68 | is_declarator_flag_ref = hv_fetch( |
69 | is_declarator_pack_hash, name, |
70 | strlen(name), FALSE |
71 | ); |
72 | |
73 | /* requires SvIOK as well as TRUE since flags not being an int is useless */ |
74 | |
75 | if (!is_declarator_flag_ref |
76 | || !SvIOK(*is_declarator_flag_ref) |
77 | || !SvTRUE(*is_declarator_flag_ref)) |
78 | return -1; |
79 | |
80 | dd_flags = SvIVX(*is_declarator_flag_ref); |
81 | |
82 | return dd_flags; |
83 | } |
84 | |
569ac469 |
85 | /* callback thingy */ |
86 | |
a9bd9b5e |
87 | void dd_linestr_callback (pTHX_ char* type, char* name) { |
569ac469 |
88 | |
89 | char* linestr = SvPVX(PL_linestr); |
a9bd9b5e |
90 | int offset = PL_bufptr - linestr; |
569ac469 |
91 | |
569ac469 |
92 | dSP; |
93 | |
94 | ENTER; |
95 | SAVETMPS; |
96 | |
97 | PUSHMARK(SP); |
98 | XPUSHs(sv_2mortal(newSVpv(type, 0))); |
99 | XPUSHs(sv_2mortal(newSVpv(name, 0))); |
100 | XPUSHs(sv_2mortal(newSViv(offset))); |
101 | PUTBACK; |
102 | |
04a8a223 |
103 | call_pv("Devel::Declare::linestr_callback", G_VOID|G_DISCARD); |
569ac469 |
104 | |
569ac469 |
105 | FREETMPS; |
106 | LEAVE; |
107 | } |
108 | |
04a8a223 |
109 | char* dd_get_lex_stuff(pTHX) { |
96f12726 |
110 | return (DD_HAVE_LEX_STUFF ? SvPVX(PL_lex_stuff) : ""); |
04a8a223 |
111 | } |
112 | |
bd85a06e |
113 | void dd_clear_lex_stuff(pTHX) { |
96f12726 |
114 | if (DD_HAVE_PARSER) |
f05cbc90 |
115 | PL_lex_stuff = (SV*)NULL; |
04a8a223 |
116 | } |
117 | |
118 | char* dd_get_curstash_name(pTHX) { |
119 | return HvNAME(PL_curstash); |
120 | } |
121 | |
840ebcbb |
122 | char* dd_move_past_token (pTHX_ char* s) { |
923c07a8 |
123 | |
124 | /* |
125 | * buffer will be at the beginning of the declarator, -unless- the |
126 | * declarator is at EOL in which case it'll be the next useful line |
127 | * so we don't short-circuit out if we don't find the declarator |
128 | */ |
129 | |
130 | while (s < PL_bufend && isSPACE(*s)) s++; |
131 | if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf))) |
132 | s += strlen(PL_tokenbuf); |
133 | return s; |
134 | } |
135 | |
840ebcbb |
136 | int dd_toke_move_past_token (pTHX_ int offset) { |
04a8a223 |
137 | char* base_s = SvPVX(PL_linestr) + offset; |
138 | char* s = dd_move_past_token(aTHX_ base_s); |
139 | return s - base_s; |
140 | } |
141 | |
923c07a8 |
142 | int dd_toke_scan_word(pTHX_ int offset, int handle_package) { |
143 | char tmpbuf[sizeof PL_tokenbuf]; |
144 | char* base_s = SvPVX(PL_linestr) + offset; |
145 | STRLEN len; |
146 | char* s = scan_word(base_s, tmpbuf, sizeof tmpbuf, handle_package, &len); |
147 | return s - base_s; |
148 | } |
149 | |
150 | int dd_toke_scan_str(pTHX_ int offset) { |
151 | char* base_s = SvPVX(PL_linestr) + offset; |
152 | char* s = scan_str(base_s, FALSE, FALSE); |
153 | return s - base_s; |
154 | } |
155 | |
156 | int dd_toke_skipspace(pTHX_ int offset) { |
157 | char* base_s = SvPVX(PL_linestr) + offset; |
158 | char* s = skipspace(base_s); |
159 | return s - base_s; |
160 | } |
161 | |
94caac6e |
162 | /* replacement PL_check rv2cv entry */ |
163 | |
6e67754a |
164 | STATIC OP *dd_ck_rv2cv(pTHX_ OP *o, void *user_data) { |
94caac6e |
165 | OP* kid; |
0ba8c7aa |
166 | int dd_flags; |
94caac6e |
167 | |
94caac6e |
168 | if (in_declare) { |
e81bee92 |
169 | if (dd_debug) { |
170 | printf("Deconstructing declare\n"); |
171 | printf("PL_bufptr: %s\n", PL_bufptr); |
172 | printf("bufend at: %i\n", PL_bufend - PL_bufptr); |
173 | printf("linestr: %s\n", SvPVX(PL_linestr)); |
174 | printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr)); |
175 | } |
001d53d0 |
176 | |
177 | dSP; |
178 | |
179 | ENTER; |
180 | SAVETMPS; |
181 | |
182 | PUSHMARK(SP); |
183 | |
184 | call_pv("Devel::Declare::done_declare", G_VOID|G_DISCARD); |
185 | |
186 | FREETMPS; |
187 | LEAVE; |
188 | |
e81bee92 |
189 | if (dd_debug) { |
190 | printf("PL_bufptr: %s\n", PL_bufptr); |
191 | printf("bufend at: %i\n", PL_bufend - PL_bufptr); |
192 | printf("linestr: %s\n", SvPVX(PL_linestr)); |
193 | printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr)); |
194 | printf("actual len: %i\n", strlen(PL_bufptr)); |
195 | } |
94caac6e |
196 | return o; |
197 | } |
198 | |
199 | kid = cUNOPo->op_first; |
200 | |
201 | if (kid->op_type != OP_GV) /* not a GV so ignore */ |
202 | return o; |
203 | |
96f12726 |
204 | if (!DD_AM_LEXING) |
94caac6e |
205 | return o; /* not lexing? */ |
206 | |
e81bee92 |
207 | if (dd_debug) { |
208 | printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv)); |
209 | } |
840ebcbb |
210 | |
72f20f69 |
211 | dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv)); |
94caac6e |
212 | |
72f20f69 |
213 | if (dd_flags == -1) |
94caac6e |
214 | return o; |
215 | |
e81bee92 |
216 | if (dd_debug) { |
217 | printf("dd_flags are: %i\n", dd_flags); |
218 | printf("PL_tokenbuf: %s\n", PL_tokenbuf); |
219 | } |
840ebcbb |
220 | |
a9bd9b5e |
221 | dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv)); |
94caac6e |
222 | |
53e3ab32 |
223 | return o; |
224 | } |
225 | |
b7505981 |
226 | OP* dd_pp_entereval(pTHX) { |
227 | dSP; |
228 | dPOPss; |
229 | STRLEN len; |
230 | const char* s; |
231 | if (SvPOK(sv)) { |
e81bee92 |
232 | if (dd_debug) { |
233 | printf("mangling eval sv\n"); |
234 | } |
b7505981 |
235 | if (SvREADONLY(sv)) |
236 | sv = sv_2mortal(newSVsv(sv)); |
237 | s = SvPVX(sv); |
238 | len = SvCUR(sv); |
239 | if (!len || s[len-1] != ';') { |
240 | if (!(SvFLAGS(sv) & SVs_TEMP)) |
241 | sv = sv_2mortal(newSVsv(sv)); |
242 | sv_catpvn(sv, "\n;", 2); |
53e3ab32 |
243 | } |
b7505981 |
244 | SvGROW(sv, 8192); |
53e3ab32 |
245 | } |
b7505981 |
246 | PUSHs(sv); |
247 | return PL_ppaddr[OP_ENTEREVAL](aTHX); |
248 | } |
53e3ab32 |
249 | |
6e67754a |
250 | STATIC OP *dd_ck_entereval(pTHX_ OP *o, void *user_data) { |
d8e65fc8 |
251 | if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL]) |
252 | o->op_ppaddr = dd_pp_entereval; |
94caac6e |
253 | return o; |
254 | } |
255 | |
6a0bcf35 |
256 | static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen) |
257 | { |
258 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
259 | SvGROW(sv, 8192); /* please try not to have a line longer than this :) */ |
260 | /* filter_del(dd_filter_realloc); */ |
261 | return count; |
262 | } |
263 | |
6e67754a |
264 | STATIC OP *dd_ck_const(pTHX_ OP *o, void *user_data) { |
bedac9ff |
265 | int dd_flags; |
04a8a223 |
266 | char* name; |
bedac9ff |
267 | |
34335b63 |
268 | /* if this is set, we just grabbed a delimited string or something, |
269 | not a bareword, so NO TOUCHY */ |
270 | |
79abf18a |
271 | if (DD_HAVE_LEX_STUFF) |
34335b63 |
272 | return o; |
273 | |
bedac9ff |
274 | /* don't try and look this up if it's not a string const */ |
275 | if (!SvPOK(cSVOPo->op_sv)) |
276 | return o; |
277 | |
04a8a223 |
278 | name = SvPVX(cSVOPo->op_sv); |
279 | |
280 | dd_flags = dd_is_declarator(aTHX_ name); |
bedac9ff |
281 | |
a9fb5fb1 |
282 | if (dd_flags == -1) |
bedac9ff |
283 | return o; |
284 | |
a9bd9b5e |
285 | dd_linestr_callback(aTHX_ "const", name); |
bedac9ff |
286 | |
bedac9ff |
287 | return o; |
288 | } |
289 | |
94caac6e |
290 | static int initialized = 0; |
291 | |
292 | MODULE = Devel::Declare PACKAGE = Devel::Declare |
293 | |
294 | PROTOTYPES: DISABLE |
295 | |
296 | void |
297 | setup() |
298 | CODE: |
299 | if (!initialized++) { |
6e67754a |
300 | hook_op_check(OP_RV2CV, dd_ck_rv2cv, NULL); |
301 | hook_op_check(OP_ENTEREVAL, dd_ck_entereval, NULL); |
302 | hook_op_check(OP_CONST, dd_ck_const, NULL); |
94caac6e |
303 | } |
6a0bcf35 |
304 | filter_add(dd_filter_realloc, NULL); |
569ac469 |
305 | |
306 | char* |
04a8a223 |
307 | get_lex_stuff() |
308 | CODE: |
309 | RETVAL = dd_get_lex_stuff(aTHX); |
310 | OUTPUT: |
311 | RETVAL |
312 | |
313 | void |
314 | clear_lex_stuff() |
315 | CODE: |
316 | dd_clear_lex_stuff(aTHX); |
317 | |
318 | char* |
319 | get_curstash_name() |
320 | CODE: |
321 | RETVAL = dd_get_curstash_name(aTHX); |
322 | OUTPUT: |
323 | RETVAL |
324 | |
923c07a8 |
325 | int |
326 | toke_scan_word(int offset, int handle_package) |
327 | CODE: |
328 | RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package); |
329 | OUTPUT: |
330 | RETVAL |
331 | |
332 | int |
04a8a223 |
333 | toke_move_past_token(int offset); |
334 | CODE: |
335 | RETVAL = dd_toke_move_past_token(aTHX_ offset); |
336 | OUTPUT: |
337 | RETVAL |
338 | |
339 | int |
923c07a8 |
340 | toke_scan_str(int offset); |
341 | CODE: |
342 | RETVAL = dd_toke_scan_str(aTHX_ offset); |
343 | OUTPUT: |
344 | RETVAL |
345 | |
346 | int |
347 | toke_skipspace(int offset) |
348 | CODE: |
349 | RETVAL = dd_toke_skipspace(aTHX_ offset); |
350 | OUTPUT: |
351 | RETVAL |
04a8a223 |
352 | |
353 | int |
354 | get_in_declare() |
355 | CODE: |
356 | RETVAL = in_declare; |
357 | OUTPUT: |
358 | RETVAL |
359 | |
360 | void |
361 | set_in_declare(int value) |
362 | CODE: |
363 | in_declare = value; |
e81bee92 |
364 | |
365 | BOOT: |
366 | if (getenv ("DD_DEBUG")) { |
367 | dd_debug = 1; |
368 | } |