2 #define PERL_NO_GET_CONTEXT
6 #include "hook_op_check.h"
8 #include "stolen_chunk_of_toke.c"
13 # define Newx(v,n,t) New(0,v,n,t)
21 #define DD_DEBUG_S printf("Buffer: %s\n", s);
27 #define LEX_INTERPNORMAL 9
29 /* flag to trigger removal of temporary declaree sub */
31 static int in_declare = 0;
33 /* in 5.10, PL_parser will be NULL if we aren't parsing, and PL_lex_stuff
34 is a lookup into it - so if anything else we can use to tell, so we
35 need to be a bit more careful if PL_parser exists */
37 #define DD_AM_LEXING_CHECK (PL_lex_state == LEX_NORMAL || PL_lex_state == LEX_INTERPNORMAL)
40 #define DD_HAVE_PARSER PL_parser
41 #define DD_HAVE_LEX_STUFF (PL_parser && PL_lex_stuff)
42 #define DD_AM_LEXING (PL_parser && DD_AM_LEXING_CHECK)
44 #define DD_HAVE_PARSER 1
45 #define DD_HAVE_LEX_STUFF PL_lex_stuff
46 #define DD_AM_LEXING DD_AM_LEXING_CHECK
49 /* thing that decides whether we're dealing with a declarator */
51 int dd_is_declarator(pTHX_ char* name) {
53 SV** is_declarator_pack_ref;
54 HV* is_declarator_pack_hash;
55 SV** is_declarator_flag_ref;
58 is_declarator = get_hv("Devel::Declare::declarators", FALSE);
63 /* $declarators{$current_package_name} */
65 is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(PL_curstash),
66 strlen(HvNAME(PL_curstash)), FALSE);
68 if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref))
69 return -1; /* not a hashref */
71 is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref);
73 /* $declarators{$current_package_name}{$name} */
75 is_declarator_flag_ref = hv_fetch(
76 is_declarator_pack_hash, name,
80 /* requires SvIOK as well as TRUE since flags not being an int is useless */
82 if (!is_declarator_flag_ref
83 || !SvIOK(*is_declarator_flag_ref)
84 || !SvTRUE(*is_declarator_flag_ref))
87 dd_flags = SvIVX(*is_declarator_flag_ref);
94 void dd_linestr_callback (pTHX_ char* type, char* name) {
96 char* linestr = SvPVX(PL_linestr);
97 int offset = PL_bufptr - linestr;
105 XPUSHs(sv_2mortal(newSVpv(type, 0)));
106 XPUSHs(sv_2mortal(newSVpv(name, 0)));
107 XPUSHs(sv_2mortal(newSViv(offset)));
110 call_pv("Devel::Declare::linestr_callback", G_VOID|G_DISCARD);
116 char* dd_get_linestr(pTHX) {
117 return SvPVX(PL_linestr);
120 void dd_set_linestr(pTHX_ char* new_value) {
121 int new_len = strlen(new_value);
122 char* old_linestr = SvPVX(PL_linestr);
124 SvGROW(PL_linestr, strlen(new_value));
126 if (SvPVX(PL_linestr) != old_linestr)
127 Perl_croak(aTHX_ "forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
129 memcpy(SvPVX(PL_linestr), new_value, new_len+1);
131 SvCUR_set(PL_linestr, new_len);
133 PL_bufend = SvPVX(PL_linestr) + new_len;
136 char* dd_get_lex_stuff(pTHX) {
137 return (DD_HAVE_LEX_STUFF ? SvPVX(PL_lex_stuff) : "");
140 char* dd_clear_lex_stuff(pTHX) {
142 PL_lex_stuff = Nullsv;
145 char* dd_get_curstash_name(pTHX) {
146 return HvNAME(PL_curstash);
149 int dd_get_linestr_offset(pTHX) {
150 char* linestr = SvPVX(PL_linestr);
151 return PL_bufptr - linestr;
154 char* dd_move_past_token (pTHX_ char* s) {
157 * buffer will be at the beginning of the declarator, -unless- the
158 * declarator is at EOL in which case it'll be the next useful line
159 * so we don't short-circuit out if we don't find the declarator
162 while (s < PL_bufend && isSPACE(*s)) s++;
163 if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf)))
164 s += strlen(PL_tokenbuf);
168 int dd_toke_move_past_token (pTHX_ int offset) {
169 char* base_s = SvPVX(PL_linestr) + offset;
170 char* s = dd_move_past_token(aTHX_ base_s);
174 int dd_toke_scan_word(pTHX_ int offset, int handle_package) {
175 char tmpbuf[sizeof PL_tokenbuf];
176 char* base_s = SvPVX(PL_linestr) + offset;
178 char* s = scan_word(base_s, tmpbuf, sizeof tmpbuf, handle_package, &len);
182 int dd_toke_scan_str(pTHX_ int offset) {
183 char* base_s = SvPVX(PL_linestr) + offset;
184 char* s = scan_str(base_s, FALSE, FALSE);
188 int dd_toke_skipspace(pTHX_ int offset) {
189 char* base_s = SvPVX(PL_linestr) + offset;
190 char* s = skipspace(base_s);
194 /* replacement PL_check rv2cv entry */
196 STATIC OP *dd_ck_rv2cv(pTHX_ OP *o) {
204 printf("Deconstructing declare\n");
205 printf("PL_bufptr: %s\n", PL_bufptr);
206 printf("bufend at: %i\n", PL_bufend - PL_bufptr);
207 printf("linestr: %s\n", SvPVX(PL_linestr));
208 printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
210 call_argv("Devel::Declare::done_declare", G_VOID|G_DISCARD, cb_args);
212 printf("PL_bufptr: %s\n", PL_bufptr);
213 printf("bufend at: %i\n", PL_bufend - PL_bufptr);
214 printf("linestr: %s\n", SvPVX(PL_linestr));
215 printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
216 printf("actual len: %i\n", strlen(PL_bufptr));
221 kid = cUNOPo->op_first;
223 if (kid->op_type != OP_GV) /* not a GV so ignore */
227 return o; /* not lexing? */
230 printf("Checking GV %s -> %s\n", HvNAME(GvSTASH(kGVOP_gv)), GvNAME(kGVOP_gv));
233 dd_flags = dd_is_declarator(aTHX_ GvNAME(kGVOP_gv));
239 printf("dd_flags are: %i\n", dd_flags);
243 printf("PL_tokenbuf: %s\n", PL_tokenbuf);
246 dd_linestr_callback(aTHX_ "rv2cv", GvNAME(kGVOP_gv));
251 OP* dd_pp_entereval(pTHX) {
258 printf("mangling eval sv\n");
261 sv = sv_2mortal(newSVsv(sv));
264 if (!len || s[len-1] != ';') {
265 if (!(SvFLAGS(sv) & SVs_TEMP))
266 sv = sv_2mortal(newSVsv(sv));
267 sv_catpvn(sv, "\n;", 2);
272 return PL_ppaddr[OP_ENTEREVAL](aTHX);
275 STATIC OP *dd_ck_entereval(pTHX_ OP *o) {
276 if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL])
277 o->op_ppaddr = dd_pp_entereval;
281 static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen)
283 const I32 count = FILTER_READ(idx+1, sv, maxlen);
284 SvGROW(sv, 8192); /* please try not to have a line longer than this :) */
285 /* filter_del(dd_filter_realloc); */
289 STATIC OP *dd_ck_const(pTHX_ OP *o) {
294 /* if this is set, we just grabbed a delimited string or something,
295 not a bareword, so NO TOUCHY */
297 if (DD_HAVE_LEX_STUFF)
300 /* don't try and look this up if it's not a string const */
301 if (!SvPOK(cSVOPo->op_sv))
304 name = SvPVX(cSVOPo->op_sv);
306 dd_flags = dd_is_declarator(aTHX_ name);
311 dd_linestr_callback(aTHX_ "const", name);
316 static int initialized = 0;
318 MODULE = Devel::Declare PACKAGE = Devel::Declare
325 if (!initialized++) {
326 hook_op_check(OP_RV2CV, dd_ck_rv2cv);
327 hook_op_check(OP_ENTEREVAL, dd_ck_entereval);
328 hook_op_check(OP_CONST, dd_ck_const);
330 filter_add(dd_filter_realloc, NULL);
335 RETVAL = dd_get_linestr(aTHX);
340 set_linestr(char* new_value)
342 dd_set_linestr(aTHX_ new_value);
347 RETVAL = dd_get_lex_stuff(aTHX);
354 dd_clear_lex_stuff(aTHX);
359 RETVAL = dd_get_curstash_name(aTHX);
366 RETVAL = dd_get_linestr_offset(aTHX);
371 toke_scan_word(int offset, int handle_package)
373 RETVAL = dd_toke_scan_word(aTHX_ offset, handle_package);
378 toke_move_past_token(int offset);
380 RETVAL = dd_toke_move_past_token(aTHX_ offset);
385 toke_scan_str(int offset);
387 RETVAL = dd_toke_scan_str(aTHX_ offset);
392 toke_skipspace(int offset)
394 RETVAL = dd_toke_skipspace(aTHX_ offset);
406 set_in_declare(int value)