2 #define PERL_NO_GET_CONTEXT
7 #include "stolen_chunk_of_toke.c"
12 # define Newx(v,n,t) New(0,v,n,t)
23 #define DD_HANDLE_NAME 1
24 #define DD_HANDLE_PROTO 2
25 #define DD_HANDLE_PACKAGE 8
28 #define DD_DEBUG_S printf("Buffer: %s\n", s);
34 #define LEX_INTERPNORMAL 9
36 /* placeholders for PL_check entries we wrap */
38 STATIC OP *(*dd_old_ck_rv2cv)(pTHX_ OP *op);
39 STATIC OP *(*dd_old_ck_entereval)(pTHX_ OP *op);
41 /* flag to trigger removal of temporary declaree sub */
43 static int in_declare = 0;
45 /* replacement PL_check rv2cv entry */
47 STATIC OP *dd_ck_rv2cv(pTHX_ OP *o) {
51 char tmpbuf[sizeof PL_tokenbuf];
52 char found_name[sizeof PL_tokenbuf];
53 char* found_proto = NULL, *found_traits = NULL;
57 SV** is_declarator_pack_ref;
58 HV* is_declarator_pack_hash;
59 SV** is_declarator_flag_ref;
62 dSP; /* define stack pointer for later call stuff */
64 STRLEN n_a; /* for POPpx */
66 o = dd_old_ck_rv2cv(aTHX_ o); /* let the original do its job */
71 printf("Deconstructing declare\n");
72 printf("PL_bufptr: %s\n", PL_bufptr);
73 printf("bufend at: %i\n", PL_bufend - PL_bufptr);
74 printf("linestr: %s\n", SvPVX(PL_linestr));
75 printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
77 call_argv("Devel::Declare::done_declare", G_VOID|G_DISCARD, cb_args);
80 printf("PL_bufptr: %s\n", PL_bufptr);
81 printf("bufend at: %i\n", PL_bufend - PL_bufptr);
82 printf("linestr: %s\n", SvPVX(PL_linestr));
83 printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
84 printf("actual len: %i\n", strlen(PL_bufptr));
89 kid = cUNOPo->op_first;
91 if (kid->op_type != OP_GV) /* not a GV so ignore */
94 if (PL_lex_state != LEX_NORMAL && PL_lex_state != LEX_INTERPNORMAL)
95 return o; /* not lexing? */
97 stash = GvSTASH(kGVOP_gv);
100 printf("Checking GV %s -> %s\n", HvNAME(stash), GvNAME(kGVOP_gv));
103 is_declarator = get_hv("Devel::Declare::declarators", FALSE);
108 is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(stash),
109 strlen(HvNAME(stash)), FALSE);
111 if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref))
112 return o; /* not a hashref */
114 is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref);
116 is_declarator_flag_ref = hv_fetch(is_declarator_pack_hash, GvNAME(kGVOP_gv),
117 strlen(GvNAME(kGVOP_gv)), FALSE);
119 /* requires SvIOK as well as TRUE since flags not being an int is useless */
121 if (!is_declarator_flag_ref
122 || !SvIOK(*is_declarator_flag_ref)
123 || !SvTRUE(*is_declarator_flag_ref))
126 dd_flags = SvIVX(*is_declarator_flag_ref);
129 printf("dd_flags are: %i\n", dd_flags);
132 s = PL_bufptr; /* copy the current buffer pointer */
137 printf("PL_tokenbuf: %s\n", PL_tokenbuf);
141 * buffer will be at the beginning of the declarator, -unless- the
142 * declarator is at EOL in which case it'll be the next useful line
143 * so we don't short-circuit out if we don't find the declarator
146 while (s < PL_bufend && isSPACE(*s)) s++;
147 if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf)))
148 s += strlen(PL_tokenbuf);
152 if (dd_flags & DD_HANDLE_NAME) {
160 /* arg 4 is allow_package */
162 s = scan_word(s, tmpbuf, sizeof tmpbuf, dd_flags & DD_HANDLE_PACKAGE, &len);
167 strcpy(found_name, tmpbuf);
169 printf("Found %s\n", found_name);
174 if (dd_flags & DD_HANDLE_PROTO) {
178 if (*s == '(') { /* found a prototype-ish thing */
180 s = scan_str(s, FALSE, FALSE); /* no keep_quoted, no keep_delims */
183 char *traitstart = s = skipspace(s);
185 while (*s && *s != '{') ++s;
187 int tlen = s - traitstart;
188 Newx(found_traits, tlen+1, char);
189 Copy(traitstart, found_traits, tlen, char);
190 found_traits[tlen] = 0;
192 printf("found traits..... (%s)\n", found_traits);
198 if (SvPOK(PL_lex_stuff)) {
200 printf("Found proto %s\n", SvPVX(PL_lex_stuff));
202 found_proto = SvPVX(PL_lex_stuff);
203 if (len) /* foo name () => foo name X, only foo parsed so works */
205 else /* foo () => foo =X, TOKEN('&') won't handle foo X */
212 printf("Curbuf %s\n", PL_bufptr);
222 printf("Calling init_declare\n");
224 cb_args[0] = HvNAME(stash);
225 cb_args[1] = GvNAME(kGVOP_gv);
226 cb_args[2] = HvNAME(PL_curstash);
227 cb_args[3] = found_name;
228 cb_args[4] = found_proto;
229 cb_args[5] = found_traits;
232 if (len && found_proto)
234 else if (len || found_proto)
237 PL_lex_stuff = Nullsv;
240 printf("cur buf: %s\n", s);
241 printf("bufend at: %i\n", PL_bufend - s);
242 printf("linestr: %s\n", SvPVX(PL_linestr));
243 printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
246 call_argv("Devel::Declare::init_declare", G_SCALAR, cb_args);
250 if (retstr && strlen(retstr)) {
251 const char* old_start = SvPVX(PL_linestr);
253 const int old_len = SvCUR(PL_linestr);
255 printf("Got string %s\n", retstr);
257 SvGROW(PL_linestr, (STRLEN)(old_len + strlen(retstr)));
258 if (start_diff = SvPVX(PL_linestr) - old_start) {
259 Perl_croak(aTHX_ "forced to realloc PL_linestr for line %s, bailing out before we crash harder", SvPVX(PL_linestr));
261 memmove(s+strlen(retstr), s, (PL_bufend - s)+1);
262 memmove(s, retstr, strlen(retstr));
263 SvCUR_set(PL_linestr, old_len + strlen(retstr));
264 PL_bufend += strlen(retstr);
266 printf("cur buf: %s\n", s);
267 printf("PL_bufptr: %s\n", PL_bufptr);
268 printf("bufend at: %i\n", PL_bufend - s);
269 printf("linestr: %s\n", SvPVX(PL_linestr));
270 printf("linestr len: %i\n", PL_bufend - SvPVX(PL_linestr));
271 printf("tokenbuf now: %s\n", PL_tokenbuf);
275 call_argv("Devel::Declare::init_declare", G_VOID|G_DISCARD, cb_args);
280 OP* dd_pp_entereval(pTHX) {
287 printf("mangling eval sv\n");
290 sv = sv_2mortal(newSVsv(sv));
293 if (!len || s[len-1] != ';') {
294 if (!(SvFLAGS(sv) & SVs_TEMP))
295 sv = sv_2mortal(newSVsv(sv));
296 sv_catpvn(sv, "\n;", 2);
301 return PL_ppaddr[OP_ENTEREVAL](aTHX);
304 STATIC OP *dd_ck_entereval(pTHX_ OP *o) {
305 o = dd_old_ck_entereval(aTHX_ o); /* let the original do its job */
306 if (o->op_ppaddr == PL_ppaddr[OP_ENTEREVAL])
307 o->op_ppaddr = dd_pp_entereval;
311 static I32 dd_filter_realloc(pTHX_ int idx, SV *sv, int maxlen)
313 const I32 count = FILTER_READ(idx+1, sv, maxlen);
314 SvGROW(sv, 8192); /* please try not to have a line longer than this :) */
315 /* filter_del(dd_filter_realloc); */
319 static int initialized = 0;
321 MODULE = Devel::Declare PACKAGE = Devel::Declare
328 if (!initialized++) {
329 dd_old_ck_rv2cv = PL_check[OP_RV2CV];
330 PL_check[OP_RV2CV] = dd_ck_rv2cv;
331 dd_old_ck_entereval = PL_check[OP_ENTEREVAL];
332 PL_check[OP_ENTEREVAL] = dd_ck_entereval;
334 filter_add(dd_filter_realloc, NULL);