5 #include "stolen_chunk_of_toke.c"
10 # define Newx(v,n,t) New(0,v,n,t)
13 static int dd_debug = 0;
16 #define LEX_INTERPNORMAL 9
18 /* flag to trigger removal of temporary declaree sub */
20 static int in_declare = 0;
22 /* in 5.10, PL_parser will be NULL if we aren't parsing, and PL_lex_stuff
23 is a lookup into it - so if anything else we can use to tell, so we
24 need to be a bit more careful if PL_parser exists */
26 #define DD_AM_LEXING_CHECK (PL_lex_state == LEX_NORMAL || PL_lex_state == LEX_INTERPNORMAL)
29 #define DD_HAVE_PARSER PL_parser
30 #define DD_HAVE_LEX_STUFF (PL_parser && PL_lex_stuff)
31 #define DD_AM_LEXING (PL_parser && DD_AM_LEXING_CHECK)
33 #define DD_HAVE_PARSER 1
34 #define DD_HAVE_LEX_STUFF PL_lex_stuff
35 #define DD_AM_LEXING DD_AM_LEXING_CHECK
38 /* thing that decides whether we're dealing with a declarator */
40 int dd_is_declarator(pTHX_ char* name) {
42 SV** is_declarator_pack_ref;
43 HV* is_declarator_pack_hash;
44 SV** is_declarator_flag_ref;
47 is_declarator = get_hv("Devel::Declare::declarators", FALSE);
52 /* $declarators{$current_package_name} */
54 if (!HvNAME(PL_curstash))
57 is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash),
58 strlen(HvNAME(PL_curstash)), FALSE);
60 if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref))
61 return -1; /* not a hashref */
63 is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref);
65 /* $declarators{$current_package_name}{$name} */
67 is_declarator_flag_ref = hv_fetch(
68 is_declarator_pack_hash, name,
72 /* requires SvIOK as well as TRUE since flags not being an int is useless */
74 if (!is_declarator_flag_ref
75 || !SvIOK(*is_declarator_flag_ref)
76 || !SvTRUE(*is_declarator_flag_ref))
79 dd_flags = SvIVX(*is_declarator_flag_ref);
86 void dd_linestr_callback (pTHX_ char* type, char* name) {
88 char* linestr = SvPVX(PL_linestr);
89 int offset = PL_bufptr - linestr;
97 XPUSHs(sv_2mortal(newSVpv(type, 0)));
98 XPUSHs(sv_2mortal(newSVpv(name, 0)));
99 XPUSHs(sv_2mortal(newSViv(offset)));
102 call_pv("Devel::Declare::linestr_callback", G_VOID|G_DISCARD);
108 char* dd_get_linestr(pTHX) {
109 if (!DD_HAVE_PARSER) {
112 return SvPVX(PL_linestr);
115 void dd_set_linestr(pTHX_ char* new_value) {
116 int new_len = strlen(new_value);
118 if (SvLEN(PL_linestr) < new_len) {
119 croak("forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
122 SvGROW(PL_linestr, new_len);
124 memcpy(SvPVX(PL_linestr), new_value, new_len+1);
126 SvCUR_set(PL_linestr, new_len);
128 PL_bufend = SvPVX(PL_linestr) + new_len;
131 char* dd_get_lex_stuff(pTHX) {
132 return (DD_HAVE_LEX_STUFF ? SvPVX(PL_lex_stuff) : "");
135 void dd_clear_lex_stuff(pTHX) {
137 PL_lex_stuff = (SV*)NULL;
140 char* dd_get_curstash_name(pTHX) {
141 return HvNAME(PL_curstash);
144 int dd_get_linestr_offset(pTHX) {
146 if (!DD_HAVE_PARSER) {
149 linestr = SvPVX(PL_linestr);
150 return PL_bufptr - linestr;
153 char* dd_move_past_token (pTHX_ char* s) {
156 * buffer will be at the beginning of the declarator, -unless- the
157 * declarator is at EOL in which case it'll be the next useful line
158 * so we don't short-circuit out if we don't find the declarator
161 while (s < PL_bufend && isSPACE(*s)) s++;
162 if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf)))
163 s += strlen(PL_tokenbuf);
167 int dd_toke_move_past_token (pTHX_ int offset) {
168 char* base_s = SvPVX(PL_linestr) + offset;
169 char* s = dd_move_past_token(aTHX_ base_s);
173 int dd_toke_scan_word(pTHX_ int offset, int handle_package) {
174 char tmpbuf[sizeof PL_tokenbuf];
175 char* base_s = SvPVX(PL_linestr) + offset;
177 char* s = scan_word(base_s, tmpbuf, sizeof tmpbuf, handle_package, &len);
181 int dd_toke_scan_str(pTHX_ int offset) {
182 char* base_s = SvPVX(PL_linestr) + offset;
183 char* s = scan_str(base_s, FALSE, FALSE);
187 int dd_toke_skipspace(pTHX_ int offset) {
188 char* base_s = SvPVX(PL_linestr) + offset;
189 char* s = skipspace(base_s);
193 /* replacement PL_check rv2cv entry */
195 STATIC OP *(*dd_old_ck_rv2cv)(pTHX_ OP *op);
197 STATIC OP *dd_ck_rv2cv(pTHX_ OP *o) {
201 o = dd_old_ck_rv2cv(aTHX_ o); /* let the original do its job */
205 printf("Deconstructing declare\n");
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));
219 call_pv("Devel::Declare::done_declare", G_VOID|G_DISCARD);
225 printf("PL_bufptr: %s\n", PL_bufptr);
226 printf("bufend at: %i\n", PL_bufend - PL_bufptr);
227 printf("linestr: %s\n", SvPVX(PL_linestr));
228 printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
229 printf("actual len: %i\n", strlen(PL_bufptr));
234 kid = cUNOPo->op_first;
236 if (kid->op_type != OP_GV) /* not a GV so ignore */
240 return o; /* not lexing? */
243 printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
246 dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv));
252 printf("dd_flags are: %i\n", dd_flags);
253 printf("PL_tokenbuf: %s\n", PL_tokenbuf);
256 dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv));
261 STATIC OP *(*dd_old_ck_entereval)(pTHX_ OP *op);
263 OP* dd_pp_entereval(pTHX) {
270 printf("mangling eval sv\n");
273 sv = sv_2mortal(newSVsv(sv));
276 if (!len || s[len-1] != ';') {
277 if (!(SvFLAGS(sv) & SVs_TEMP))
278 sv = sv_2mortal(newSVsv(sv));
279 sv_catpvn(sv, "\n;", 2);
284 return PL_ppaddr[OP_ENTEREVAL](aTHX);
287 STATIC OP *dd_ck_entereval(pTHX_ OP *o) {
288 o = dd_old_ck_entereval(aTHX_ o); /* let the original do its job */
289 if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL])
290 o->op_ppaddr = dd_pp_entereval;
294 static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen)
296 const I32 count = FILTER_READ(idx+1, sv, maxlen);
297 SvGROW(sv, 8192); /* please try not to have a line longer than this :) */
298 /* filter_del(dd_filter_realloc); */
302 STATIC OP *(*dd_old_ck_const)(pTHX_ OP*op);
304 STATIC OP *dd_ck_const(pTHX_ OP *o) {
308 o = dd_old_ck_const(aTHX_ o); /* let the original do its job */
310 /* if this is set, we just grabbed a delimited string or something,
311 not a bareword, so NO TOUCHY */
313 if (DD_HAVE_LEX_STUFF)
316 /* don't try and look this up if it's not a string const */
317 if (!SvPOK(cSVOPo->op_sv))
320 name = SvPVX(cSVOPo->op_sv);
322 dd_flags = dd_is_declarator(aTHX_ name);
327 dd_linestr_callback(aTHX_ "const", name);
332 static int initialized = 0;
334 MODULE = Devel::Declare PACKAGE = Devel::Declare
341 if (!initialized++) {
342 dd_old_ck_rv2cv = PL_check[OP_RV2CV];
343 PL_check[OP_RV2CV] = dd_ck_rv2cv;
344 dd_old_ck_entereval = PL_check[OP_ENTEREVAL];
345 PL_check[OP_ENTEREVAL] = dd_ck_entereval;
346 dd_old_ck_const = PL_check[OP_CONST];
347 PL_check[OP_CONST] = dd_ck_const;
349 filter_add(dd_filter_realloc, NULL);
354 RETVAL = dd_get_linestr(aTHX);
359 set_linestr(char* new_value)
361 dd_set_linestr(aTHX_ new_value);
366 RETVAL = dd_get_lex_stuff(aTHX);
373 dd_clear_lex_stuff(aTHX);
378 RETVAL = dd_get_curstash_name(aTHX);
385 RETVAL = dd_get_linestr_offset(aTHX);
390 toke_scan_word(int offset, int handle_package)
392 RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package);
397 toke_move_past_token(int offset);
399 RETVAL = dd_toke_move_past_token(aTHX_ offset);
404 toke_scan_str(int offset);
406 RETVAL = dd_toke_scan_str(aTHX_ offset);
411 toke_skipspace(int offset)
413 RETVAL = dd_toke_skipspace(aTHX_ offset);
425 set_in_declare(int value)
430 if (getenv ("DD_DEBUG")) {