2 #define PERL_NO_GET_CONTEXT
7 #include "stolen_chunk_of_toke.c"
12 # define Newx(v,n,t) New(0,v,n,t)
20 #define DD_DEBUG_S printf("Buffer: %s\n", s);
26 #define LEX_INTERPNORMAL 9
28 /* flag to trigger removal of temporary declaree sub */
30 static int in_declare = 0;
32 /* in 5.10, PL_parser will be NULL if we aren't parsing, and PL_lex_stuff
33 is a lookup into it - so if anything else we can use to tell, so we
34 need to be a bit more careful if PL_parser exists */
36 #define DD_AM_LEXING_CHECK (PL_lex_state == LEX_NORMAL || PL_lex_state == LEX_INTERPNORMAL)
39 #define DD_HAVE_PARSER PL_parser
40 #define DD_HAVE_LEX_STUFF (PL_parser && PL_lex_stuff)
41 #define DD_AM_LEXING (PL_parser && DD_AM_LEXING_CHECK)
43 #define DD_HAVE_PARSER 1
44 #define DD_HAVE_LEX_STUFF PL_lex_stuff
45 #define DD_AM_LEXING DD_AM_LEXING_CHECK
48 /* thing that decides whether we're dealing with a declarator */
50 int dd_is_declarator(pTHX_ char* name) {
52 SV** is_declarator_pack_ref;
53 HV* is_declarator_pack_hash;
54 SV** is_declarator_flag_ref;
57 is_declarator = get_hv("Devel::Declare::declarators", FALSE);
62 /* $declarators{$current_package_name} */
64 is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash),
65 strlen(HvNAME(PL_curstash)), FALSE);
67 if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref))
68 return -1; /* not a hashref */
70 is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref);
72 /* $declarators{$current_package_name}{$name} */
74 is_declarator_flag_ref = hv_fetch(
75 is_declarator_pack_hash, name,
79 /* requires SvIOK as well as TRUE since flags not being an int is useless */
81 if (!is_declarator_flag_ref
82 || !SvIOK(*is_declarator_flag_ref)
83 || !SvTRUE(*is_declarator_flag_ref))
86 dd_flags = SvIVX(*is_declarator_flag_ref);
93 void dd_linestr_callback (pTHX_ char* type, char* name) {
95 char* linestr = SvPVX(PL_linestr);
96 int offset = PL_bufptr - linestr;
104 XPUSHs(sv_2mortal(newSVpv(type, 0)));
105 XPUSHs(sv_2mortal(newSVpv(name, 0)));
106 XPUSHs(sv_2mortal(newSViv(offset)));
109 call_pv("Devel::Declare::linestr_callback", G_VOID|G_DISCARD);
115 char* dd_get_linestr(pTHX) {
116 return SvPVX(PL_linestr);
119 void dd_set_linestr(pTHX_ char* new_value) {
120 int new_len = strlen(new_value);
121 char* old_linestr = SvPVX(PL_linestr);
123 SvGROW(PL_linestr, strlen(new_value));
125 if (SvPVX(PL_linestr) != old_linestr)
126 Perl_croak(aTHX_ "forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
128 memcpy(SvPVX(PL_linestr), new_value, new_len+1);
130 SvCUR_set(PL_linestr, new_len);
132 PL_bufend = SvPVX(PL_linestr) + new_len;
135 char* dd_get_lex_stuff(pTHX) {
136 return (DD_HAVE_LEX_STUFF ? SvPVX(PL_lex_stuff) : "");
139 char* dd_clear_lex_stuff(pTHX) {
141 PL_lex_stuff = Nullsv;
144 char* dd_get_curstash_name(pTHX) {
145 return HvNAME(PL_curstash);
148 int dd_get_linestr_offset(pTHX) {
149 char* 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) {
202 o = dd_old_ck_rv2cv(aTHX_ o); /* let the original do its job */
207 printf("Deconstructing declare\n");
208 printf("PL_bufptr: %s\n", PL_bufptr);
209 printf("bufend at: %i\n", PL_bufend - PL_bufptr);
210 printf("linestr: %s\n", SvPVX(PL_linestr));
211 printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
213 call_argv("Devel::Declare::done_declare", G_VOID|G_DISCARD, cb_args);
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));
219 printf("actual len: %i\n", strlen(PL_bufptr));
224 kid = cUNOPo->op_first;
226 if (kid->op_type != OP_GV) /* not a GV so ignore */
230 return o; /* not lexing? */
233 printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
236 dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv));
242 printf("dd_flags are: %i\n", dd_flags);
246 printf("PL_tokenbuf: %s\n", PL_tokenbuf);
249 dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv));
254 STATIC OP *(*dd_old_ck_entereval)(pTHX_ OP *op);
256 OP* dd_pp_entereval(pTHX) {
263 printf("mangling eval sv\n");
266 sv = sv_2mortal(newSVsv(sv));
269 if (!len || s[len-1] != ';') {
270 if (!(SvFLAGS(sv) & SVs_TEMP))
271 sv = sv_2mortal(newSVsv(sv));
272 sv_catpvn(sv, "\n;", 2);
277 return PL_ppaddr[OP_ENTEREVAL](aTHX);
280 STATIC OP *dd_ck_entereval(pTHX_ OP *o) {
281 o = dd_old_ck_entereval(aTHX_ o); /* let the original do its job */
282 if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL])
283 o->op_ppaddr = dd_pp_entereval;
287 static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen)
289 const I32 count = FILTER_READ(idx+1, sv, maxlen);
290 SvGROW(sv, 8192); /* please try not to have a line longer than this :) */
291 /* filter_del(dd_filter_realloc); */
295 STATIC OP *(*dd_old_ck_const)(pTHX_ OP*op);
297 STATIC OP *dd_ck_const(pTHX_ OP *o) {
302 o = dd_old_ck_const(aTHX_ o); /* let the original do its job */
304 /* if this is set, we just grabbed a delimited string or something,
305 not a bareword, so NO TOUCHY */
307 if (DD_HAVE_LEX_STUFF)
310 /* don't try and look this up if it's not a string const */
311 if (!SvPOK(cSVOPo->op_sv))
314 name = SvPVX(cSVOPo->op_sv);
316 dd_flags = dd_is_declarator(aTHX_ name);
321 dd_linestr_callback(aTHX_ "const", name);
326 static int initialized = 0;
328 MODULE = Devel::Declare PACKAGE = Devel::Declare
335 if (!initialized++) {
336 dd_old_ck_rv2cv = PL_check[OP_RV2CV];
337 PL_check[OP_RV2CV] = dd_ck_rv2cv;
338 dd_old_ck_entereval = PL_check[OP_ENTEREVAL];
339 PL_check[OP_ENTEREVAL] = dd_ck_entereval;
340 dd_old_ck_const = PL_check[OP_CONST];
341 PL_check[OP_CONST] = dd_ck_const;
343 filter_add(dd_filter_realloc, NULL);
348 RETVAL = dd_get_linestr(aTHX);
353 set_linestr(char* new_value)
355 dd_set_linestr(aTHX_ new_value);
360 RETVAL = dd_get_lex_stuff(aTHX);
367 dd_clear_lex_stuff(aTHX);
372 RETVAL = dd_get_curstash_name(aTHX);
379 RETVAL = dd_get_linestr_offset(aTHX);
384 toke_scan_word(int offset, int handle_package)
386 RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package);
391 toke_move_past_token(int offset);
393 RETVAL = dd_toke_move_past_token(aTHX_ offset);
398 toke_scan_str(int offset);
400 RETVAL = dd_toke_scan_str(aTHX_ offset);
405 toke_skipspace(int offset)
407 RETVAL = dd_toke_skipspace(aTHX_ offset);
419 set_in_declare(int value)