4 #include "hook_op_check.h"
6 #include "stolen_chunk_of_toke.c"
11 # define Newx(v,n,t) New(0,v,n,t)
14 static int dd_debug = 0;
17 #define LEX_INTERPNORMAL 9
19 /* flag to trigger removal of temporary declaree sub */
21 static int in_declare = 0;
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 */
27 #define DD_AM_LEXING_CHECK (PL_lex_state == LEX_NORMAL || PL_lex_state == LEX_INTERPNORMAL)
29 #if defined(PL_parser) || defined(PERL_5_9_PLUS)
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)
34 #define DD_HAVE_PARSER 1
35 #define DD_HAVE_LEX_STUFF PL_lex_stuff
36 #define DD_AM_LEXING DD_AM_LEXING_CHECK
39 static OP *previous_op = NULL;
41 /* thing that decides whether we're dealing with a declarator */
43 int dd_is_declarator(pTHX_ char* name) {
45 SV** is_declarator_pack_ref;
46 HV* is_declarator_pack_hash;
47 SV** is_declarator_flag_ref;
50 is_declarator = get_hv("Devel::Declare::declarators", FALSE);
55 /* $declarators{$current_package_name} */
57 if (!HvNAME(PL_curstash))
60 is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash),
61 strlen(HvNAME(PL_curstash)), FALSE);
63 if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref))
64 return -1; /* not a hashref */
66 is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref);
68 /* $declarators{$current_package_name}{$name} */
70 is_declarator_flag_ref = hv_fetch(
71 is_declarator_pack_hash, name,
75 /* requires SvIOK as well as TRUE since flags not being an int is useless */
77 if (!is_declarator_flag_ref
78 || !SvIOK(*is_declarator_flag_ref)
79 || !SvTRUE(*is_declarator_flag_ref))
82 dd_flags = SvIVX(*is_declarator_flag_ref);
89 void dd_linestr_callback (pTHX_ char* type, char* name) {
91 char* linestr = SvPVX(PL_linestr);
92 int offset = PL_bufptr - linestr;
100 XPUSHs(sv_2mortal(newSVpv(type, 0)));
101 XPUSHs(sv_2mortal(newSVpv(name, 0)));
102 XPUSHs(sv_2mortal(newSViv(offset)));
105 call_pv("Devel::Declare::linestr_callback", G_VOID|G_DISCARD);
111 char* dd_get_linestr(pTHX) {
112 if (!DD_HAVE_PARSER) {
115 return SvPVX(PL_linestr);
118 void dd_set_linestr(pTHX_ char* new_value) {
119 unsigned int new_len = strlen(new_value);
121 if (SvLEN(PL_linestr) < new_len) {
122 croak("forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
125 SvGROW(PL_linestr, new_len);
127 memcpy(SvPVX(PL_linestr), new_value, new_len+1);
129 SvCUR_set(PL_linestr, new_len);
131 PL_bufend = SvPVX(PL_linestr) + new_len;
134 char* dd_get_lex_stuff(pTHX) {
135 return (DD_HAVE_LEX_STUFF ? SvPVX(PL_lex_stuff) : "");
138 void dd_clear_lex_stuff(pTHX) {
140 PL_lex_stuff = (SV*)NULL;
143 char* dd_get_curstash_name(pTHX) {
144 return HvNAME(PL_curstash);
147 int dd_get_linestr_offset(pTHX) {
149 if (!DD_HAVE_PARSER) {
152 linestr = SvPVX(PL_linestr);
153 return PL_bufptr - linestr;
156 char* dd_move_past_token (pTHX_ char* s) {
159 * buffer will be at the beginning of the declarator, -unless- the
160 * declarator is at EOL in which case it'll be the next useful line
161 * so we don't short-circuit out if we don't find the declarator
164 while (s < PL_bufend && isSPACE(*s)) s++;
165 if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf)))
166 s += strlen(PL_tokenbuf);
170 int dd_toke_move_past_token (pTHX_ int offset) {
171 char* base_s = SvPVX(PL_linestr) + offset;
172 char* s = dd_move_past_token(aTHX_ base_s);
176 int dd_toke_scan_word(pTHX_ int offset, int handle_package) {
177 char tmpbuf[sizeof PL_tokenbuf];
178 char* base_s = SvPVX(PL_linestr) + offset;
180 char* s = scan_word(base_s, tmpbuf, sizeof tmpbuf, handle_package, &len);
184 int dd_toke_scan_ident(pTHX_ int offset) {
185 char tmpbuf[sizeof PL_tokenbuf];
186 char* base_s = SvPVX(PL_linestr) + offset;
187 char* s = scan_ident(base_s, PL_bufend, tmpbuf, sizeof tmpbuf, 0);
191 int dd_toke_scan_str(pTHX_ int offset) {
192 char* base_s = SvPVX(PL_linestr) + offset;
193 char* s = scan_str(base_s, FALSE, FALSE);
197 int dd_toke_skipspace(pTHX_ int offset) {
198 char* base_s = SvPVX(PL_linestr) + offset;
199 char* s = skipspace(base_s);
203 /* replacement PL_check rv2cv entry */
205 STATIC OP *dd_ck_rv2cv(pTHX_ OP *o, void *user_data) {
210 PERL_UNUSED_VAR(user_data);
214 printf("Deconstructing declare\n");
215 printf("PL_bufptr: %s\n", PL_bufptr);
216 printf("bufend at: %i\n", PL_bufend - PL_bufptr);
217 printf("linestr: %s\n", SvPVX(PL_linestr));
218 printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
226 call_pv("Devel::Declare::done_declare", G_VOID|G_DISCARD);
232 printf("PL_bufptr: %s\n", PL_bufptr);
233 printf("bufend at: %i\n", PL_bufend - PL_bufptr);
234 printf("linestr: %s\n", SvPVX(PL_linestr));
235 printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
236 printf("actual len: %i\n", strlen(PL_bufptr));
241 kid = cUNOPo->op_first;
243 if (kid->op_type != OP_GV) /* not a GV so ignore */
247 return o; /* not lexing? */
250 printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
253 dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv));
259 printf("dd_flags are: %i\n", dd_flags);
260 printf("PL_tokenbuf: %s\n", PL_tokenbuf);
263 dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv));
268 OP* dd_pp_entereval(pTHX) {
275 if (PL_op->op_private & OPpEVAL_HAS_HH) {
282 printf("mangling eval sv\n");
285 sv = sv_2mortal(newSVsv(sv));
288 if (!len || s[len-1] != ';') {
289 if (!(SvFLAGS(sv) & SVs_TEMP))
290 sv = sv_2mortal(newSVsv(sv));
291 sv_catpvn(sv, "\n;", 2);
297 if (PL_op->op_private & OPpEVAL_HAS_HH) {
301 return PL_ppaddr[OP_ENTEREVAL](aTHX);
304 STATIC OP *dd_ck_entereval(pTHX_ OP *o, void *user_data) {
305 PERL_UNUSED_VAR(user_data);
307 if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL])
308 o->op_ppaddr = dd_pp_entereval;
312 static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen)
314 const I32 count = FILTER_READ(idx+1, sv, maxlen);
315 SvGROW(sv, 8192); /* please try not to have a line longer than this :) */
316 /* filter_del(dd_filter_realloc); */
320 STATIC OP *dd_ck_const(pTHX_ OP *o, void *user_data) {
324 PERL_UNUSED_VAR(user_data);
326 /* if this is set, we just grabbed a delimited string or something,
327 not a bareword, so NO TOUCHY */
329 if (DD_HAVE_LEX_STUFF)
332 /* don't try and look this up if it's not a string const */
333 if (!SvPOK(cSVOPo->op_sv))
336 name = SvPVX(cSVOPo->op_sv);
338 dd_flags = dd_is_declarator(aTHX_ name);
343 switch (PL_lex_inwhat) {
355 dd_linestr_callback(aTHX_ "const", name);
360 static int initialized = 0;
362 MODULE = Devel::Declare PACKAGE = Devel::Declare
369 if (!initialized++) {
370 hook_op_check(OP_RV2CV, dd_ck_rv2cv, NULL);
371 hook_op_check(OP_ENTEREVAL, dd_ck_entereval, NULL);
372 hook_op_check(OP_CONST, dd_ck_const, NULL);
374 filter_add(dd_filter_realloc, NULL);
379 RETVAL = dd_get_linestr(aTHX);
384 set_linestr(char* new_value)
386 dd_set_linestr(aTHX_ new_value);
391 RETVAL = dd_get_lex_stuff(aTHX);
398 dd_clear_lex_stuff(aTHX);
403 RETVAL = dd_get_curstash_name(aTHX);
410 RETVAL = dd_get_linestr_offset(aTHX);
415 toke_scan_word(int offset, int handle_package)
417 RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package);
422 toke_move_past_token(int offset);
424 RETVAL = dd_toke_move_past_token(aTHX_ offset);
429 toke_scan_str(int offset);
431 RETVAL = dd_toke_scan_str(aTHX_ offset);
436 toke_scan_ident(int offset)
438 RETVAL = dd_toke_scan_ident(aTHX_ offset);
443 toke_skipspace(int offset)
445 RETVAL = dd_toke_skipspace(aTHX_ offset);
457 set_in_declare(int value)
462 if (getenv ("DD_DEBUG")) {