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 is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash),
55 strlen(HvNAME(PL_curstash)), FALSE);
57 if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref))
58 return -1; /* not a hashref */
60 is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref);
62 /* $declarators{$current_package_name}{$name} */
64 is_declarator_flag_ref = hv_fetch(
65 is_declarator_pack_hash, name,
69 /* requires SvIOK as well as TRUE since flags not being an int is useless */
71 if (!is_declarator_flag_ref
72 || !SvIOK(*is_declarator_flag_ref)
73 || !SvTRUE(*is_declarator_flag_ref))
76 dd_flags = SvIVX(*is_declarator_flag_ref);
83 void dd_linestr_callback (pTHX_ char* type, char* name) {
85 char* linestr = SvPVX(PL_linestr);
86 int offset = PL_bufptr - linestr;
94 XPUSHs(sv_2mortal(newSVpv(type, 0)));
95 XPUSHs(sv_2mortal(newSVpv(name, 0)));
96 XPUSHs(sv_2mortal(newSViv(offset)));
99 call_pv("Devel::Declare::linestr_callback", G_VOID|G_DISCARD);
105 char* dd_get_linestr(pTHX) {
106 return SvPVX(PL_linestr);
109 void dd_set_linestr(pTHX_ char* new_value) {
110 int new_len = strlen(new_value);
111 char* old_linestr = SvPVX(PL_linestr);
113 if (SvLEN(PL_linestr) < new_len) {
114 croak("forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
117 SvGROW(PL_linestr, new_len);
119 memcpy(SvPVX(PL_linestr), new_value, new_len+1);
121 SvCUR_set(PL_linestr, new_len);
123 PL_bufend = SvPVX(PL_linestr) + new_len;
126 char* dd_get_lex_stuff(pTHX) {
127 return (DD_HAVE_LEX_STUFF ? SvPVX(PL_lex_stuff) : "");
130 char* dd_clear_lex_stuff(pTHX) {
132 PL_lex_stuff = (SV*)NULL;
135 char* dd_get_curstash_name(pTHX) {
136 return HvNAME(PL_curstash);
139 int dd_get_linestr_offset(pTHX) {
140 char* linestr = SvPVX(PL_linestr);
141 return PL_bufptr - linestr;
144 char* dd_move_past_token (pTHX_ char* s) {
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
152 while (s < PL_bufend && isSPACE(*s)) s++;
153 if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf)))
154 s += strlen(PL_tokenbuf);
158 int dd_toke_move_past_token (pTHX_ int offset) {
159 char* base_s = SvPVX(PL_linestr) + offset;
160 char* s = dd_move_past_token(aTHX_ base_s);
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;
168 char* s = scan_word(base_s, tmpbuf, sizeof tmpbuf, handle_package, &len);
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);
178 int dd_toke_skipspace(pTHX_ int offset) {
179 char* base_s = SvPVX(PL_linestr) + offset;
180 char* s = skipspace(base_s);
184 /* replacement PL_check rv2cv entry */
186 STATIC OP *(*dd_old_ck_rv2cv)(pTHX_ OP *op);
188 STATIC OP *dd_ck_rv2cv(pTHX_ OP *o) {
193 o = dd_old_ck_rv2cv(aTHX_ o); /* let the original do its job */
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));
204 call_argv("Devel::Declare::done_declare", G_VOID|G_DISCARD, cb_args);
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));
215 kid = cUNOPo->op_first;
217 if (kid->op_type != OP_GV) /* not a GV so ignore */
221 return o; /* not lexing? */
224 printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
227 dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv));
233 printf("dd_flags are: %i\n", dd_flags);
234 printf("PL_tokenbuf: %s\n", PL_tokenbuf);
237 dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv));
242 STATIC OP *(*dd_old_ck_entereval)(pTHX_ OP *op);
244 OP* dd_pp_entereval(pTHX) {
251 printf("mangling eval sv\n");
254 sv = sv_2mortal(newSVsv(sv));
257 if (!len || s[len-1] != ';') {
258 if (!(SvFLAGS(sv) & SVs_TEMP))
259 sv = sv_2mortal(newSVsv(sv));
260 sv_catpvn(sv, "\n;", 2);
265 return PL_ppaddr[OP_ENTEREVAL](aTHX);
268 STATIC OP *dd_ck_entereval(pTHX_ OP *o) {
269 o = dd_old_ck_entereval(aTHX_ o); /* let the original do its job */
270 if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL])
271 o->op_ppaddr = dd_pp_entereval;
275 static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen)
277 const I32 count = FILTER_READ(idx+1, sv, maxlen);
278 SvGROW(sv, 8192); /* please try not to have a line longer than this :) */
279 /* filter_del(dd_filter_realloc); */
283 STATIC OP *(*dd_old_ck_const)(pTHX_ OP*op);
285 STATIC OP *dd_ck_const(pTHX_ OP *o) {
290 o = dd_old_ck_const(aTHX_ o); /* let the original do its job */
292 /* if this is set, we just grabbed a delimited string or something,
293 not a bareword, so NO TOUCHY */
295 if (DD_HAVE_LEX_STUFF)
298 /* don't try and look this up if it's not a string const */
299 if (!SvPOK(cSVOPo->op_sv))
302 name = SvPVX(cSVOPo->op_sv);
304 dd_flags = dd_is_declarator(aTHX_ name);
309 dd_linestr_callback(aTHX_ "const", name);
314 static int initialized = 0;
316 MODULE = Devel::Declare PACKAGE = Devel::Declare
323 if (!initialized++) {
324 dd_old_ck_rv2cv = PL_check[OP_RV2CV];
325 PL_check[OP_RV2CV] = dd_ck_rv2cv;
326 dd_old_ck_entereval = PL_check[OP_ENTEREVAL];
327 PL_check[OP_ENTEREVAL] = dd_ck_entereval;
328 dd_old_ck_const = PL_check[OP_CONST];
329 PL_check[OP_CONST] = dd_ck_const;
331 filter_add(dd_filter_realloc, NULL);
336 RETVAL = dd_get_linestr(aTHX);
341 set_linestr(char* new_value)
343 dd_set_linestr(aTHX_ new_value);
348 RETVAL = dd_get_lex_stuff(aTHX);
355 dd_clear_lex_stuff(aTHX);
360 RETVAL = dd_get_curstash_name(aTHX);
367 RETVAL = dd_get_linestr_offset(aTHX);
372 toke_scan_word(int offset, int handle_package)
374 RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package);
379 toke_move_past_token(int offset);
381 RETVAL = dd_toke_move_past_token(aTHX_ offset);
386 toke_scan_str(int offset);
388 RETVAL = dd_toke_scan_str(aTHX_ offset);
393 toke_skipspace(int offset)
395 RETVAL = dd_toke_skipspace(aTHX_ offset);
407 set_in_declare(int value)
412 if (getenv ("DD_DEBUG")) {