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f0f2a6a3033bed29115b5f6281946250e1ac15ec
[m6w6/ext-psi] / src / context.c
1 #ifdef HAVE_CONFIG_H
2 # include "config.h"
3 #endif
4
5 #include "php.h"
6
7 #include "php_psi_stdinc.h"
8
9 #ifdef HAVE_DIRENT_H
10 # include <dirent.h>
11 # define NAMLEN(dirent) strlen ((dirent)->d_name)
12 #else
13 # define dirent direct
14 # define NAMLEN(dirent) ((dirent)->d_namlen)
15 # ifdef HAVE_SYS_NDIR_H
16 # include <sys/ndir.h>
17 # endif
18 # ifdef HAVE_SYS_DIR_H
19 # include <sys/dir.h>
20 # endif
21 # ifdef HAVE_NDIR_H
22 # include <ndir.h>
23 # endif
24 #endif
25
26 #include <sys/param.h>
27 #include <dlfcn.h>
28 #include <fnmatch.h>
29
30 #include "php.h"
31 #include "php_scandir.h"
32 #include "php_psi.h"
33
34 #include "libjit.h"
35 #include "libffi.h"
36
37 #include "php_psi_stdtypes.h"
38 #include "php_psi_types.h"
39 #include "php_psi_consts.h"
40 #include "php_psi_macros.h"
41 #include "php_psi_redirs.h"
42 #include "php_psi_decls.h"
43 #include "php_psi_va_decls.h"
44 #include "php_psi_structs.h"
45
46 static int validate_lib(PSI_Data *data, void **dlopened) {
47 char lib[MAXPATHLEN];
48 const char *ptr = data->psi.file.ln;
49 size_t len;
50
51 if (!ptr) {
52 /* FIXME: assume stdlib */
53 return 1;
54 } else if (!strchr(ptr, '/')) {
55 len = snprintf(lib, MAXPATHLEN, "lib%s.%s", ptr, PHP_PSI_SHLIB_SUFFIX);
56 if (MAXPATHLEN == len) {
57 data->error(NULL, PSI_WARNING, "Library name too long: '%s'", ptr);
58 }
59 lib[len] = 0;
60 ptr = lib;
61 }
62 if (!(*dlopened = dlopen(ptr, RTLD_LAZY|RTLD_LOCAL))) {
63 data->error(NULL, PSI_WARNING, "Could not open library '%s': %s.",
64 data->psi.file.ln, dlerror());
65 return 0;
66 }
67 return 1;
68 }
69
70 static inline int locate_decl_type_alias(decl_typedefs *defs, decl_type *type) {
71 size_t i;
72 struct psi_predef_type *stdtyp;
73
74 if (type->real) {
75 return 1;
76 }
77 for (i = 0; i < defs->count; ++i) {
78 decl_typedef *def = defs->list[i];
79
80 if (def->type->type != type->type && !strcmp(def->alias, type->name)) {
81 type->real = def->type;
82 return 1;
83 }
84 }
85 for (stdtyp = &psi_std_types[0]; stdtyp->type_tag; ++stdtyp) {
86 if (!strcmp(type->name, stdtyp->alias ?: stdtyp->type_name)) {
87 type->type = stdtyp->type_tag;
88 return 1;
89 }
90 }
91
92 return 0;
93 }
94 static inline int locate_decl_type_struct(decl_structs *structs, decl_type *type) {
95 size_t i;
96
97 if (type->strct) {
98 return 1;
99 }
100 for (i = 0; i < structs->count; ++i) {
101 if (!strcmp(structs->list[i]->name, type->name)) {
102 type->strct = structs->list[i];
103 return 1;
104 }
105 }
106 return 0;
107 }
108
109 static inline int validate_decl_type(PSI_Data *data, decl_type *type) {
110 switch (type->type) {
111 case PSI_T_CHAR:
112 case PSI_T_SHORT:
113 case PSI_T_INT:
114 case PSI_T_LONG:
115 case PSI_T_NAME:
116 if (!data->defs || !locate_decl_type_alias(data->defs, type)) {
117 return 0;
118 }
119 if (type->real) {
120 return validate_decl_type(data, type->real);
121 }
122 return 1;
123 case PSI_T_STRUCT:
124 if (!data->structs || !locate_decl_type_struct(data->structs, type)) {
125 return 0;
126 }
127 break;
128 }
129 return 1;
130 }
131 static inline int validate_decl_typedef(PSI_Data *data, decl_typedef *def) {
132 if (!validate_decl_type(data, def->type)) {
133 data->error(def->token, PSI_WARNING,
134 "Type '%s' cannot be aliased to %s'%s'",
135 def->type->name, def->type->type == PSI_T_STRUCT?"struct ":"",def->alias);
136 return 0;
137 }
138 /* FIXME: check def->alias */
139 return 1;
140 }
141
142 static inline int validate_constant(PSI_Data *data, constant *c) {
143 /* FIXME */
144 return 1;
145 }
146
147 static inline int validate_decl_arg(PSI_Data *data, decl_arg *arg) {
148 if (!validate_decl_type(data, arg->type)) {
149 data->error(arg->type->token, PSI_WARNING,
150 "Cannot use '%s'(%d) as type for decl var '%s'",
151 arg->type->name, arg->type->type, arg->var->name);
152 return 0;
153 }
154 return 1;
155 }
156
157 static int psi_sort_struct_arg_cmp(const void *_a, const void *_b) {
158 decl_arg *a = *(decl_arg **)_a, *b = *(decl_arg **)_b;
159
160 if (a->layout->pos == b->layout->pos) {
161 if (a->layout->len == b->layout->len) {
162 return 0;
163 } else if (a->layout->len > b->layout->len) {
164 return -1;
165 } else {
166 return 1;
167 }
168 } else if (a->layout->pos > b->layout->pos) {
169 return 1;
170 } else {
171 return -1;
172 }
173 }
174 static void psi_sort_struct_arg_swp(void *a, void *b) {
175 decl_arg **_a = a, **_b = b, *_c;
176
177 _c = *_b;
178 *_b = *_a;
179 *_a = _c;
180 }
181 static inline void psi_sort_struct_args(decl_struct *s) {
182 zend_insert_sort(s->args->args, s->args->count, sizeof(*s->args->args),
183 psi_sort_struct_arg_cmp, psi_sort_struct_arg_swp);
184 }
185
186 static inline int validate_decl_struct(PSI_Data *data, decl_struct *s) {
187 size_t i;
188
189 for (i = 0; i < s->args->count; ++i) {
190 if (!validate_decl_arg(data, s->args->args[i])) {
191 return 0;
192 }
193 }
194
195 for (i = 0; i < s->args->count; ++i) {
196 decl_arg *darg = s->args->args[i];
197
198 if (!validate_decl_arg(data, darg)) {
199 return 0;
200 }
201
202 ZEND_ASSERT(!darg->var->arg || darg->var->arg == darg);
203 darg->var->arg = darg;
204
205 if (darg->layout) {
206 size_t size;
207
208 if (darg->var->array_size) {
209 size = psi_t_size(real_decl_type(darg->type)->type) * darg->var->array_size;
210 } else if (darg->var->pointer_level) {
211 size = psi_t_size(PSI_T_POINTER);
212 } else {
213 decl_type *real = real_decl_type(darg->type);
214
215 if (real->type == PSI_T_STRUCT) {
216 size = real->strct->size;
217 } else {
218 size = psi_t_size(real->type);
219 }
220 }
221 if (darg->layout->len != size) {
222 data->error(darg->token, PSI_WARNING,
223 "Computed length %zu of %s.%s does not match"
224 " pre-defined length %zu of type '%s'",
225 darg->layout->len, s->name, darg->var->name, size,
226 darg->type->name);
227 return 0;
228 }
229 } else {
230 token_t t;
231
232 if (darg->var->pointer_level && (!darg->var->array_size || darg->var->pointer_level == 1)) {
233 t = PSI_T_POINTER;
234 } else {
235 t = real_decl_type(darg->type)->type;
236 }
237
238 if (i) {
239 decl_arg *last = s->args->args[i-1];
240 darg->layout = init_decl_struct_layout(
241 psi_t_align(t, last->layout->pos + last->layout->len),
242 psi_t_size(t) * darg->var->array_size);
243 } else {
244 darg->layout = init_decl_struct_layout(0, psi_t_size(t));
245 }
246 }
247 if (s->size < darg->layout->pos + darg->layout->len) {
248 s->size = darg->layout->pos + darg->layout->len;
249 }
250 }
251
252 psi_sort_struct_args(s);
253
254 return 1;
255 }
256
257 static const char * const abi_ccs[] = {
258 "default", /* \ */
259 "extern", /* > - all the same */
260 "cdecl", /* / */
261 "mscdecl",
262 "stdcall",
263 "fastcall",
264 };
265 static inline int validate_decl_abi(PSI_Data *data, decl_abi *abi) {
266 size_t i;
267
268 for (i = 0; i < sizeof(abi_ccs)/sizeof(char*); ++i) {
269 if (strcasecmp(abi->convention, abi_ccs[i])) {
270 return 1;
271 }
272 }
273 return 0;
274 }
275 static inline int validate_decl_func(PSI_Data *data, void *dl, decl *decl, decl_arg *func)
276 {
277 struct psi_func_redir *redir;
278
279 if (!strcmp(func->var->name, "dlsym")) {
280 data->error(func->token, PSI_WARNING, "Cannot dlsym dlsym (sic!)");
281 return 0;
282 }
283
284 if (!validate_decl_arg(data, func)) {
285 return 0;
286 }
287 for (redir = &psi_func_redirs[0]; redir->name; ++redir) {
288 if (!strcmp(func->var->name, redir->name)) {
289 decl->call.sym = redir->func;
290 }
291 }
292 if (!decl->call.sym) {
293 #ifndef RTLD_NEXT
294 # define RTLD_NEXT ((void *) -1l)
295 #endif
296 decl->call.sym = dlsym(dl ?: RTLD_NEXT, func->var->name);
297 if (!decl->call.sym) {
298 data->error(func->token, PSI_WARNING,
299 "Failed to locate symbol '%s': %s",
300 func->var->name, dlerror());
301 }
302 }
303 return 1;
304 }
305
306 static inline int validate_decl(PSI_Data *data, void *dl, decl *decl) {
307 if (!validate_decl_abi(data, decl->abi)) {
308 data->error(decl->abi->token, PSI_WARNING,
309 "Invalid calling convention: '%s'", decl->abi->token->text);
310 return 0;
311 }
312 if (!validate_decl_func(data, dl, decl, decl->func)) {
313 return 0;
314 }
315 if (decl->args) {
316 size_t i;
317
318 for (i = 0; i < decl->args->count; ++i) {
319 if (!validate_decl_arg(data, decl->args->args[i])) {
320 return 0;
321 }
322 }
323 }
324 return 1;
325 }
326 static inline decl_arg *locate_decl_var_arg(decl_var *var, decl_args *args, decl_arg *func) {
327 size_t i;
328
329 for (i = 0; i < args->count; ++i) {
330 decl_arg *arg = args->args[i];
331
332 if (!strcmp(var->name, arg->var->name)) {
333 ZEND_ASSERT(!var->arg || var->arg == arg);
334 return var->arg = arg;
335 }
336 }
337 if (func && !strcmp(var->name, func->var->name)) {
338 return var->arg = func;
339 }
340
341 return NULL;
342 }
343 static inline decl_arg *locate_struct_member(decl_struct *s, decl_var *var) {
344 if (s->args) {
345 return locate_decl_var_arg(var, s->args, NULL);
346 }
347
348 return NULL;
349 }
350 static inline constant *locate_num_exp_constant(num_exp *exp, constants *consts) {
351 size_t i;
352
353 for (i = 0; i < consts->count; ++i) {
354 constant *cnst = consts->list[i];
355
356 if (!strcmp(cnst->name, exp->u.numb)) {
357 free(exp->u.numb);
358 return exp->u.cnst = cnst;
359 }
360 }
361
362 return NULL;
363 }
364 static inline int validate_num_exp(PSI_Data *data, decl_args *dargs, decl_arg *func, num_exp *exp) {
365 if (exp->operand) {
366 switch (exp->operator) {
367 case PSI_T_PLUS:
368 exp->calculator = psi_calc_add;
369 break;
370 case PSI_T_MINUS:
371 exp->calculator = psi_calc_sub;
372 break;
373 case PSI_T_ASTERISK:
374 exp->calculator = psi_calc_mul;
375 break;
376 case PSI_T_SLASH:
377 exp->calculator = psi_calc_div;
378 break;
379 EMPTY_SWITCH_DEFAULT_CASE();
380 }
381 if (!validate_num_exp(data, dargs, func, exp->operand)) {
382 return 0;
383 }
384 }
385 switch (exp->t) {
386 case PSI_T_NAME:
387 if (!locate_decl_var_arg(exp->u.dvar, dargs, func)) {
388 data->error(exp->token, PSI_WARNING, "Unknown variable '%s' in numeric expression",
389 exp->u.dvar->name);
390 return 0;
391 }
392 return 1;
393 case PSI_T_NSNAME:
394 if (!locate_num_exp_constant(exp, data->consts)) {
395 data->error(exp->token, PSI_WARNING, "Unknown constant '%s' in numeric expression",
396 exp->u.numb);
397 return 0;
398 }
399 return 1;
400 case PSI_T_NUMBER:
401 return 1;
402 default:
403 return 0;
404 }
405 }
406 static inline int validate_set_value_handler(set_value *set) {
407 switch (set->func->type) {
408 case PSI_T_TO_BOOL:
409 set->func->handler = psi_to_bool;
410 break;
411 case PSI_T_TO_INT:
412 set->func->handler = psi_to_int;
413 break;
414 case PSI_T_TO_FLOAT:
415 set->func->handler = psi_to_double;
416 break;
417 case PSI_T_TO_STRING:
418 set->func->handler = psi_to_string;
419 break;
420 case PSI_T_TO_ARRAY:
421 set->func->handler = psi_to_array;
422 break;
423 case PSI_T_TO_OBJECT:
424 set->func->handler = psi_to_object;
425 break;
426 case PSI_T_VOID:
427 set->func->handler = psi_to_void;
428 break;
429 case PSI_T_ELLIPSIS:
430 if (set->outer.set && set->outer.set->func->type == PSI_T_TO_ARRAY) {
431 set->func->handler = psi_to_recursive;
432 set->inner = set->outer.set->inner;
433 set->count = set->outer.set->count;
434 break;
435 }
436 /* no break */
437 default:
438 return 0;
439 }
440 return 1;
441 }
442 static inline void decl_var_arg_v(decl_args *args, va_list argp) {
443 int argc;
444 decl_arg **argv;
445
446 memset(args, 0, sizeof(*args));
447
448 while ((argc = va_arg(argp, int))) {
449 argv = va_arg(argp, decl_arg **);
450 while (argc--) {
451 add_decl_arg(args, *argv++);
452 }
453 }
454 }
455 static inline int validate_set_value_ex(PSI_Data *data, set_value *set, decl_arg *ref, decl_args *ref_list) {
456 size_t i;
457 decl_type *ref_type;
458 decl_var *set_var = set->vars->vars[0];
459
460 if (!validate_set_value_handler(set)) {
461 data->error(set->func->token, PSI_WARNING, "Invalid cast '%s' in `set` statement", set->func->name);
462 return 0;
463 }
464
465 for (i = 0; i < set->vars->count; ++i) {
466 decl_var *svar = set->vars->vars[i];
467 if (!svar->arg && !locate_decl_var_arg(svar, ref_list, NULL)) {
468 data->error(svar->token, PSI_WARNING, "Unknown variable '%s' in `set` statement", svar->name);
469 return 0;
470 }
471 }
472
473 if (!ref) {
474 ref = set_var->arg;
475 }
476 ref_type = real_decl_type(ref->type);
477
478 if (set->count) {
479 int is_to_array = (set->func->type == PSI_T_TO_ARRAY);
480 int is_pointer_to_struct = (ref_type->type == PSI_T_STRUCT && ref->var->pointer_level);
481
482 if (!is_to_array && !is_pointer_to_struct) {
483 data->error(set->func->token, E_WARNING, "Inner `set` statement casts only work with "
484 "to_array() casts on structs or pointers: %s(%s...", set->func->name, set->vars->vars[0]->name);
485 return 0;
486 }
487 }
488 if (set->num) {
489 if (!validate_num_exp(data, ref_list, ref, set->num)) {
490 return 0;
491 }
492 }
493
494 if (ref_type->type == PSI_T_STRUCT) {
495 /* to_array(struct, to_...) */
496 if (!set->outer.set || set->outer.set->inner != set->inner) {
497 for (i = 0; i < set->count; ++i) {
498 decl_var *sub_var = set->inner[i]->vars->vars[0];
499 decl_arg *sub_ref = locate_struct_member(ref_type->strct, sub_var);
500
501 if (sub_ref) {
502 if (!validate_set_value_ex(data, set->inner[i], sub_ref, ref_type->strct->args)) {
503 return 0;
504 }
505 }
506 }
507 }
508 } else if (set->count == 1) {
509 /* to_array(ptr, to_string(*ptr)) */
510 decl_var *sub_var = set->inner[0]->vars->vars[0];
511 decl_arg *sub_ref = locate_decl_var_arg(sub_var, ref_list, ref);
512
513 if (sub_ref) {
514 if (strcmp(sub_var->name, set_var->name)) {
515 data->error(sub_var->token, E_WARNING, "Inner `set` statement casts on pointers must reference the same variable");
516 return 0;
517 }
518 if (!validate_set_value_ex(data, set->inner[0], sub_ref, ref_list)) {
519 return 0;
520 }
521 }
522 } else if (set->count > 1) {
523 data->error(set->func->token, E_WARNING, "Inner `set` statement casts on pointers may only occur once");
524 return 0;
525 }
526
527 return 1;
528 }
529 static inline int validate_set_value(PSI_Data *data, set_value *set, ...) {
530 va_list argp;
531 decl_args args = {0};
532 int check;
533
534 va_start(argp, set);
535 decl_var_arg_v(&args, argp);
536 va_end(argp);
537
538 check = validate_set_value_ex(data, set, NULL, &args);
539 if (args.args) {
540 free(args.args);
541 }
542 return check;
543 }
544 static inline decl *locate_impl_decl(decls *decls, return_stmt *ret) {
545 if (decls) {
546 size_t i;
547
548 for (i = 0; i < decls->count; ++i) {
549 if (!strcmp(decls->list[i]->func->var->name, ret->set->vars->vars[0]->name)) {
550 ret->decl = decls->list[i]->func;
551 return decls->list[i];
552 }
553 }
554 }
555
556 return NULL;
557 }
558 static inline int validate_impl_ret_stmt(PSI_Data *data, impl *impl) {
559 return_stmt *ret;
560
561 /* we must have exactly one ret stmt delcaring the native func to call */
562 /* and which type cast to apply */
563 if (impl->stmts->ret.count != 1) {
564 if (impl->stmts->ret.count > 1) {
565 data->error(impl->stmts->ret.list[1]->token, PSI_WARNING,
566 "Too many `return` statements for implmentation %s;"
567 " found %zu, exactly one is needed",
568 impl->func->name, impl->stmts->ret.count);
569 } else {
570 data->error(impl->func->token, PSI_WARNING,
571 "Missing `return` statement for implementation %s",
572 impl->func->name);
573 }
574 return 0;
575 }
576
577 ret = impl->stmts->ret.list[0];
578
579 if (!(impl->decl = locate_impl_decl(data->decls, ret))) {
580 data->error(ret->token, PSI_WARNING,
581 "Missing declaration '%s' for `return` statment for implementation %s",
582 ret->set->vars->vars[0]->name, impl->func->name);
583 return 0;
584 }
585
586 if (!validate_set_value(data, ret->set, 1, &ret->decl, impl->decl->args ? (int) impl->decl->args->count : 0, impl->decl->args ? impl->decl->args->args : NULL, 0)) {
587 return 0;
588 }
589
590 impl->decl->impl = impl;
591
592 return 1;
593 }
594
595 static inline int validate_impl_let_stmts(PSI_Data *data, impl *impl) {
596 size_t i, j;
597 /* we can have multiple let stmts */
598
599 /* check that we have a decl arg for every let stmt */
600 for (i = 0; i < impl->stmts->let.count; ++i) {
601 let_stmt *let = impl->stmts->let.list[i];
602 decl_var *let_var;
603 int check = 0;
604
605 if (let->val && let->val->kind == PSI_LET_TMP) {
606 let_var = let->val->data.var;
607 } else {
608 let_var = let->var;
609 }
610
611 if (!locate_decl_var_arg(let_var, impl->decl->args, impl->decl->func)) {
612 data->error(let_var->token, PSI_WARNING, "Unknown variable '%s' in `let` statement"
613 " of implementation '%s'", let_var->name, impl->func->name);
614 return 0;
615 }
616
617 switch (let->val->kind) {
618 case PSI_LET_NULL:
619 break;
620 case PSI_LET_TMP:
621 /* e.g. let bar = &strval($bar); // decl_arg(char **bar) */
622 /* e.g. let foo = *bar; */
623 let->var->pointer_level = let->val->data.var->pointer_level;
624 let->var->arg = init_decl_arg(
625 init_decl_type(
626 real_decl_type(let->val->data.var->arg->type)->type,
627 real_decl_type(let->val->data.var->arg->type)->name),
628 init_decl_var(
629 let->var->name,
630 let->var->pointer_level,
631 let->var->array_size));
632 break;
633 case PSI_LET_NUMEXP:
634 if (!validate_num_exp(data, impl->decl->args, impl->decl->func, let->val->data.num)) {
635 return 0;
636 }
637 break;
638 case PSI_LET_CALLOC:
639 if (!validate_num_exp(data, impl->decl->args, impl->decl->func, let->val->data.alloc->nmemb)) {
640 return 0;
641 }
642 if (!validate_num_exp(data, impl->decl->args, impl->decl->func, let->val->data.alloc->size)) {
643 return 0;
644 }
645 break;
646 case PSI_LET_FUNC:
647 if (impl->func->args) {
648 for (j = 0; j < impl->func->args->count; ++j) {
649 impl_arg *iarg = impl->func->args->args[j];
650
651 if (!strcmp(let->val->data.func->var->name, iarg->var->name)) {
652 let->val->data.func->arg = iarg;
653 check = 1;
654 break;
655 }
656 }
657 }
658 if (!check) {
659 data->error(let->var->token, PSI_WARNING, "Unknown value '$%s' of `let` statement"
660 " for variable '%s' of implementation '%s'",
661 let->val->data.func->var->name, let->var->name, impl->func->name);
662 return 0;
663 }
664 break;
665 }
666 }
667
668 /* check that we have a let stmt for every decl arg */
669 if (impl->decl->args) for (i = 0; i < impl->decl->args->count; ++i) {
670 decl_arg *darg = impl->decl->args->args[i];
671 int check = 0;
672
673 for (j = 0; j < impl->stmts->let.count; ++j) {
674 let_stmt *let = impl->stmts->let.list[j];
675
676 if (!strcmp(let->var->name, darg->var->name)) {
677 darg->let = let;
678 check = 1;
679 break;
680 }
681 }
682 if (!check) {
683 data->error(impl->func->token, PSI_WARNING,
684 "Missing `let` statement for arg '%s %.*s%s'"
685 " of declaration '%s' for implementation '%s'",
686 darg->type->name, (int) darg->var->pointer_level, "*****",
687 darg->var->name, impl->decl->func->var->name, impl->func->name);
688 return 0;
689 }
690 }
691
692 return 1;
693 }
694 static inline int validate_impl_set_stmts(PSI_Data *data, impl *impl) {
695 size_t i, j, k;
696 /* we can have any count of set stmts; processing out vars */
697 /* check that set stmts reference known variables */
698 for (i = 0; i < impl->stmts->set.count; ++i) {
699 set_stmt *set = impl->stmts->set.list[i];
700 int check = 0;
701
702 if (impl->func->args) for (j = 0; j < impl->func->args->count; ++j) {
703 impl_arg *iarg = impl->func->args->args[j];
704
705 if (!strcmp(set->var->name, iarg->var->name)) {
706 set->arg = iarg;
707 check = 1;
708 break;
709 }
710 }
711 if (!check) {
712 data->error(set->var->token, PSI_WARNING, "Unknown variable '$%s' of `set` statement"
713 " of implementation '%s'",
714 set->var->name, impl->func->name);
715 return 0;
716 }
717
718 for (j = 0; j < set->val->vars->count; ++j) {
719 decl_var *set_var = set->val->vars->vars[j];
720
721 check = 0;
722 if (impl->decl->args) {
723 for (k = 0; k < impl->decl->args->count; ++k) {
724 decl_arg *set_arg = impl->decl->args->args[k];
725
726 if (!strcmp(set_var->name, set_arg->var->name)) {
727 check = 1;
728 set_var->arg = set_arg;
729 if (!validate_set_value(data, set->val, 1, &set_arg, 1, &impl->decl->func, impl->decl->args->count, impl->decl->args->args, 0)) {
730 return 0;
731 }
732 break;
733 }
734 }
735 }
736 if (!check) {
737 for (k = 0; k < impl->stmts->let.count; ++k) {
738 let_stmt *let = impl->stmts->let.list[k];
739
740 /* check temp vars */
741 if (let->val && let->val->kind == PSI_LET_TMP) {
742 if (!strcmp(set_var->name, let->var->name)) {
743 check = 1;
744 set_var->arg = let->var->arg;
745 if (!validate_set_value(data, set->val, 1, &set_var->arg, 1, &impl->decl->func, impl->decl->args->count, impl->decl->args->args, 0)) {
746 return 0;
747 }
748 break;
749 }
750 }
751 }
752 }
753
754 if (!check) {
755 data->error(set_var->token, PSI_WARNING, "Unknown value '%s' of `set` statement"
756 " for variable '$%s' of implementation '%s'",
757 set_var->name, set->arg->var->name, impl->func->name);
758 return 0;
759 }
760 }
761 }
762 return 1;
763 }
764 static inline decl *locate_free_decl(decls *decls, free_call *f) {
765 if (decls) {
766 size_t i;
767
768 for (i = 0; i < decls->count; ++i) {
769 if (!strcmp(decls->list[i]->func->var->name, f->func)) {
770 f->decl = decls->list[i];
771 return decls->list[i];
772 }
773 }
774 }
775
776 return NULL;
777 }
778 static inline int validate_impl_free_stmts(PSI_Data *data, impl *impl) {
779 size_t i, j, k, l;
780 /* we can have any count of free stmts; freeing any out vars */
781 for (i = 0; i < impl->stmts->fre.count; ++i) {
782 free_stmt *fre = impl->stmts->fre.list[i];
783
784 for (j = 0; j < fre->calls->count; ++j) {
785 free_call *free_call = fre->calls->list[j];
786
787 /* first find the decl of the free func */
788 if (!locate_free_decl(data->decls, free_call)) {
789 data->error(free_call->token, PSI_WARNING,
790 "Missing declaration '%s' in `free` statement"
791 " of implementation '%s'",
792 free_call->func, impl->func->name);
793 return 0;
794 }
795
796
797
798 /* now check for known vars */
799 for (l = 0; l < free_call->vars->count; ++l) {
800 int check = 0;
801 decl_var *free_var = free_call->vars->vars[l];
802
803 if (!strcmp(free_var->name, impl->decl->func->var->name)) {
804 check = 1;
805 free_var->arg = impl->decl->func;
806 } else if (impl->decl->args) {
807 for (k = 0; k < impl->decl->args->count; ++k) {
808 decl_arg *free_arg = impl->decl->args->args[k];
809
810 if (!strcmp(free_var->name, free_arg->var->name)) {
811 check = 1;
812 free_var->arg = free_arg;
813 break;
814 }
815 }
816 }
817
818 if (!check) {
819 data->error(free_var->token, PSI_WARNING,
820 "Unknown variable '%s' of `free` statement"
821 " of implementation '%s'",
822 free_var->name, impl->func->name);
823 return 0;
824 }
825 }
826 }
827 }
828 return 1;
829 }
830 static inline int validate_impl_stmts(PSI_Data *data, impl *impl) {
831 if (!impl->stmts) {
832 data->error(impl->func->token, PSI_WARNING,
833 "Missing body for implementation %s!",
834 impl->func->name);
835 return 0;
836 }
837
838 if (!validate_impl_ret_stmt(data, impl)) {
839 return 0;
840 }
841
842 if (!validate_impl_let_stmts(data, impl)) {
843 return 0;
844 }
845 if (!validate_impl_set_stmts(data, impl)) {
846 return 0;
847 }
848 if (!validate_impl_free_stmts(data, impl)) {
849 return 0;
850 }
851
852 return 1;
853 }
854
855 static inline int validate_impl_args(PSI_Data *data, impl *impl) {
856 int def = 0;
857 size_t i;
858
859 for (i = 0; i < impl->func->args->count; ++i) {
860 impl_arg *iarg = impl->func->args->args[i];
861
862 if (iarg->def) {
863 def = 1;
864 } else if (def) {
865 data->error(impl->func->token, PSI_WARNING,
866 "Non-optional argument %zu '$%s' of implementation '%s'"
867 " follows optional argument",
868 i+1, iarg->var->name, impl->func->name);
869 return 0;
870 }
871 }
872
873 return 1;
874 }
875 static inline int validate_impl(PSI_Data *data, impl *impl) {
876 if (!validate_impl_args(data, impl)) {
877 return 0;
878 }
879 return validate_impl_stmts(data, impl);
880 }
881
882 PSI_Context *PSI_ContextInit(PSI_Context *C, PSI_ContextOps *ops, PSI_ContextErrorFunc error)
883 {
884 size_t i;
885 PSI_Data T;
886 struct psi_predef_type *predef_type;
887 struct psi_predef_const *predef_const;
888 struct psi_predef_struct *predef_struct;
889 struct psi_predef_decl *predef_decl;
890
891 if (!C) {
892 C = malloc(sizeof(*C));
893 }
894 memset(C, 0, sizeof(*C));
895
896 C->error = error;
897 C->ops = ops;
898
899 if (ops->init) {
900 ops->init(C);
901 }
902
903 ZEND_ASSERT(ops->call != NULL);
904 ZEND_ASSERT(ops->compile != NULL);
905
906 /* build up predefs in a temporary PSI_Data for validation */
907 memset(&T, 0, sizeof(T));
908 T.error = error;
909
910 for (predef_type = &psi_predef_types[0]; predef_type->type_tag; ++predef_type) {
911 decl_type *type = init_decl_type(predef_type->type_tag, predef_type->type_name);
912 decl_typedef *def = init_decl_typedef(predef_type->alias, type);
913
914 T.defs = add_decl_typedef(T.defs, def);
915 }
916 for (predef_const = &psi_predef_consts[0]; predef_const->type_tag; ++predef_const) {
917 impl_def_val *val = init_impl_def_val(predef_const->val_type_tag, predef_const->val_text);
918 const_type *type = init_const_type(predef_const->type_tag, predef_const->type_name);
919 constant *constant = init_constant(type, predef_const->var_name, val);
920
921 T.consts = add_constant(T.consts, constant);
922 }
923 for (predef_struct = &psi_predef_structs[0]; predef_struct->type_tag; ++predef_struct) {
924 struct psi_predef_struct *member;
925 decl_args *dargs = init_decl_args(NULL);
926 decl_struct *dstruct = init_decl_struct(predef_struct->var_name, dargs);
927
928 dstruct->size = predef_struct->size;
929 for (member = &predef_struct[1]; member->type_tag; ++member) {
930 decl_type *type;
931 decl_var *dvar;
932 decl_arg *darg;
933
934 type = init_decl_type(member->type_tag, member->type_name);
935 dvar = init_decl_var(member->var_name, member->pointer_level, member->array_size);
936 darg = init_decl_arg(type, dvar);
937 darg->layout = init_decl_struct_layout(member->offset, member->size);
938 dargs = add_decl_arg(dargs, darg);
939 }
940
941 T.structs = add_decl_struct(T.structs, dstruct);
942 predef_struct = member;
943 }
944 for (predef_decl = &psi_predef_decls[0]; predef_decl->type_tag; ++predef_decl) {
945 struct psi_predef_decl *farg;
946 decl_type *ftype = init_decl_type(predef_decl->type_tag, predef_decl->type_name);
947 decl_var *fname = init_decl_var(predef_decl->var_name, predef_decl->pointer_level, predef_decl->array_size);
948 decl_arg *func = init_decl_arg(ftype, fname);
949 decl_args *args = init_decl_args(NULL);
950 decl *decl = init_decl(init_decl_abi("default"), func, args);
951
952 for (farg = &predef_decl[1]; farg->type_tag; ++farg) {
953 decl_type *arg_type = init_decl_type(farg->type_tag, farg->type_name);
954 decl_var *arg_var = init_decl_var(farg->var_name, farg->pointer_level, farg->array_size);
955 decl_arg *darg = init_decl_arg(arg_type, arg_var);
956 args = add_decl_arg(args, darg);
957 }
958
959 T.decls = add_decl(T.decls, decl);
960 predef_decl = farg;
961 }
962
963 for (predef_decl = &psi_predef_vararg_decls[0]; predef_decl->type_tag; ++predef_decl) {
964 struct psi_predef_decl *farg;
965 decl_type *ftype = init_decl_type(predef_decl->type_tag, predef_decl->type_name);
966 decl_var *fname = init_decl_var(predef_decl->var_name, predef_decl->pointer_level, predef_decl->array_size);
967 decl_arg *func = init_decl_arg(ftype, fname);
968 decl_args *args = init_decl_args(NULL);
969 decl *decl = init_decl(init_decl_abi("default"), func, args);
970
971 for (farg = &predef_decl[1]; farg->type_tag; ++farg) {
972 decl_type *arg_type = init_decl_type(farg->type_tag, farg->type_name);
973 decl_var *arg_var = init_decl_var(farg->var_name, farg->pointer_level, farg->array_size);
974 decl_arg *darg = init_decl_arg(arg_type, arg_var);
975 args = add_decl_arg(args, darg);
976 }
977 args->varargs = 1;
978
979 T.decls = add_decl(T.decls, decl);
980 predef_decl = farg;
981 }
982
983 for (i = 0; i < T.defs->count; ++i) {
984 decl_typedef *def = T.defs->list[i];
985
986 if (validate_decl_typedef(&T, def)) {
987 C->defs = add_decl_typedef(C->defs, def);
988 }
989 }
990
991 for (i = 0; i < T.consts->count; ++i) {
992 constant *constant = T.consts->list[i];
993
994 if (validate_constant(&T, constant)) {
995 C->consts = add_constant(C->consts, constant);
996 }
997 }
998
999 for (i = 0; i < T.structs->count; ++i) {
1000 decl_struct *dstruct = T.structs->list[i];
1001
1002 if (validate_decl_struct(&T, dstruct)) {
1003 C->structs = add_decl_struct(C->structs, dstruct);
1004 }
1005 }
1006
1007 for (i = 0; i < T.decls->count; ++i) {
1008 decl *decl = T.decls->list[i];
1009
1010 if (validate_decl(&T, NULL, decl)) {
1011 C->decls = add_decl(C->decls, decl);
1012 }
1013 }
1014
1015 C->count = 1;
1016 C->data = malloc(sizeof(*C->data));
1017 PSI_DataExchange(C->data, &T);
1018
1019 return C;
1020 }
1021
1022 int PSI_ContextValidate(PSI_Context *C, PSI_Parser *P)
1023 {
1024 PSI_Data *D;
1025 void *dlopened = NULL;
1026 size_t count = C->count++;
1027
1028 C->data = realloc(C->data, C->count * sizeof(*C->data));
1029 D = PSI_DataExchange(&C->data[count], PSI_DATA(P));
1030
1031 if (D->defs) {
1032 size_t i;
1033
1034 for (i = 0; i < D->defs->count; ++i) {
1035 if (validate_decl_typedef(PSI_DATA(C), D->defs->list[i])) {
1036 C->defs = add_decl_typedef(C->defs, D->defs->list[i]);
1037 }
1038 }
1039 }
1040 if (D->structs) {
1041 size_t i;
1042
1043 for (i = 0; i < D->structs->count; ++i) {
1044 if (validate_decl_struct(PSI_DATA(C), D->structs->list[i])) {
1045 C->structs = add_decl_struct(C->structs, D->structs->list[i]);
1046 }
1047 }
1048 }
1049 if (D->consts) {
1050 size_t i;
1051
1052 for (i = 0; i < D->consts->count; ++i) {
1053 if (validate_constant(PSI_DATA(C), D->consts->list[i])) {
1054 C->consts = add_constant(C->consts, D->consts->list[i]);
1055 }
1056 }
1057 }
1058
1059 if (!validate_lib(D, &dlopened)) {
1060 return 0;
1061 }
1062
1063 add_decl_lib(&C->psi.libs, dlopened);
1064
1065 if (D->decls) {
1066 size_t i;
1067
1068 for (i = 0; i < D->decls->count; ++i) {
1069 if (validate_decl(PSI_DATA(C), dlopened, D->decls->list[i])) {
1070 C->decls = add_decl(C->decls, D->decls->list[i]);
1071 }
1072 }
1073 }
1074 if (D->impls) {
1075 size_t i;
1076
1077 for (i = 0; i < D->impls->count; ++i) {
1078 if (validate_impl(PSI_DATA(C), D->impls->list[i])) {
1079 C->impls = add_impl(C->impls, D->impls->list[i]);
1080 }
1081 }
1082 }
1083
1084 return 1;
1085 }
1086
1087 static int psi_select_dirent(const struct dirent *entry)
1088 {
1089 #ifndef FNM_CASEFOLD
1090 #define FNM_CASEFOLD 0
1091 #endif
1092 return 0 == fnmatch("*.psi", entry->d_name, FNM_CASEFOLD);
1093 }
1094
1095 void PSI_ContextBuild(PSI_Context *C, const char *paths)
1096 {
1097 int i, n, flags = psi_check_env("PSI_DEBUG") ? PSI_PARSER_DEBUG : 0;
1098 char *sep = NULL, *cpy = strdup(paths), *ptr = cpy;
1099 struct dirent **entries = NULL;
1100
1101
1102 do {
1103 sep = strchr(ptr, ':');
1104
1105 if (sep) {
1106 *sep = 0;
1107 }
1108
1109 n = php_scandir(ptr, &entries, psi_select_dirent, alphasort);
1110
1111 if (n > 0) {
1112 for (i = 0; i < n; ++i) {
1113 char psi[MAXPATHLEN];
1114 PSI_Parser P;
1115
1116 if (MAXPATHLEN <= slprintf(psi, MAXPATHLEN, "%s/%s", ptr, entries[i]->d_name)) {
1117 C->error(NULL, PSI_WARNING, "Path to PSI file too long: %s/%s",
1118 ptr, entries[i]->d_name);
1119 }
1120 if (!PSI_ParserInit(&P, psi, C->error, flags)) {
1121 C->error(NULL, PSI_WARNING, "Failed to init PSI parser (%s): %s",
1122 psi, strerror(errno));
1123 continue;
1124 }
1125
1126 while (0 < PSI_ParserScan(&P)) {
1127 PSI_ParserParse(&P, PSI_TokenAlloc(&P));
1128 if (P.num == PSI_T_EOF) {
1129 break;
1130 }
1131 }
1132
1133 PSI_ParserParse(&P, NULL);
1134 PSI_ContextValidate(C, &P);
1135 PSI_ParserDtor(&P);
1136 }
1137 }
1138
1139 if (entries) {
1140 for (i = 0; i < n; ++i) {
1141 free(entries[i]);
1142 }
1143 free(entries);
1144 }
1145
1146 ptr = sep + 1;
1147 } while (sep);
1148
1149
1150 if (PSI_ContextCompile(C) && SUCCESS != zend_register_functions(NULL, C->closures, NULL, MODULE_PERSISTENT)) {
1151 C->error(NULL, PSI_WARNING, "Failed to register functions!");
1152 }
1153
1154 free(cpy);
1155
1156 }
1157
1158 zend_function_entry *PSI_ContextCompile(PSI_Context *C)
1159 {
1160 size_t i;
1161
1162 if (C->consts) {
1163 zend_constant zc;
1164
1165 zc.flags = CONST_PERSISTENT|CONST_CS;
1166 zc.module_number = EG(current_module)->module_number;
1167
1168 for (i = 0; i < C->consts->count; ++i) {
1169 constant *c = C->consts->list[i];
1170
1171 zc.name = zend_string_init(c->name + (c->name[0] == '\\'), strlen(c->name) - (c->name[0] == '\\'), 1);
1172 ZVAL_NEW_STR(&zc.value, zend_string_init(c->val->text, strlen(c->val->text), 1));
1173
1174 switch (c->type->type) {
1175 case PSI_T_BOOL:
1176 convert_to_boolean(&zc.value);
1177 break;
1178 case PSI_T_INT:
1179 convert_to_long(&zc.value);
1180 break;
1181 case PSI_T_FLOAT:
1182 convert_to_double(&zc.value);
1183 break;
1184 }
1185 zend_register_constant(&zc);
1186 }
1187 }
1188
1189 return C->closures = C->ops->compile(C);
1190 }
1191
1192
1193 void PSI_ContextCall(PSI_Context *C, decl_callinfo *decl_call, impl_vararg *va)
1194 {
1195 C->ops->call(C, decl_call, va);
1196 }
1197
1198 static inline void dump_decl_type(int fd, decl_type *t) {
1199 const char *pre;
1200
1201 switch (t->type) {
1202 case PSI_T_STRUCT:
1203 pre = "struct ";
1204 break;
1205 default:
1206 pre = "";
1207 }
1208 dprintf(fd, "%s%s", pre, t->name);
1209 }
1210 static inline void dump_decl_var(int fd, decl_var *v) {
1211 dprintf(fd, "%.*s%s", v->pointer_level-!!v->array_size, "**********", v->name);
1212 if (v->array_size) {
1213 dprintf(fd, "[%u]", v->array_size);
1214 }
1215 }
1216 static inline void dump_decl_arg(int fd, decl_arg *a) {
1217 dump_decl_type(fd, a->type);
1218 dprintf(fd, " ");
1219 dump_decl_var(fd, a->var);
1220 }
1221 static inline void dump_level(int fd, unsigned level) {
1222 dprintf(fd, "%.*s", level, "\t\t\t\t\t\t\t\t\t");
1223 }
1224 static inline void dump_num_exp(int fd, num_exp *exp) {
1225 while (exp) {
1226 switch (exp->t) {
1227 case PSI_T_NUMBER:
1228 dprintf(fd, "%s", exp->u.numb);
1229 break;
1230 case PSI_T_NSNAME:
1231 dprintf(fd, "%s", exp->u.cnst->name);
1232 break;
1233 case PSI_T_NAME:
1234 dump_decl_var(fd, exp->u.dvar);
1235 break;
1236 EMPTY_SWITCH_DEFAULT_CASE();
1237 }
1238 if (exp->operand) {
1239 char op;
1240
1241 switch (exp->operator) {
1242 case PSI_T_PLUS: op = '+'; break;
1243 case PSI_T_MINUS: op = '-'; break;
1244 case PSI_T_ASTERISK:op = '*'; break;
1245 case PSI_T_SLASH: op = '/'; break;
1246 EMPTY_SWITCH_DEFAULT_CASE();
1247 }
1248 dprintf(fd, " %c ", op);
1249 }
1250 exp = exp->operand;
1251 }
1252 }
1253
1254 static inline void dump_impl_set_value(int fd, set_value *set, unsigned level, int last) {
1255 size_t i;
1256
1257 if (level > 1) {
1258 /* only if not directly after `set ...` */
1259 dump_level(fd, level);
1260 }
1261
1262 if (set->func->type == PSI_T_ELLIPSIS) {
1263 dprintf(fd, "%s(", set->outer.set->func->name);
1264 } else {
1265 dprintf(fd, "%s(", set->func->name);
1266 }
1267
1268 for (i = 0; i < set->vars->count; ++i) {
1269 decl_var *svar = set->vars->vars[i];
1270 if (i) {
1271 dprintf(fd, ", ");
1272 }
1273 dump_decl_var(fd, svar);
1274 }
1275
1276 if (set->func->type == PSI_T_ELLIPSIS) {
1277 dprintf(fd, ", ...");
1278 }
1279 if (set->num) {
1280 dprintf(fd, ", ");
1281 dump_num_exp(fd, set->num);
1282 }
1283 if (set->inner && set->func->type != PSI_T_ELLIPSIS) {
1284 dprintf(fd, ",\n");
1285 for (i = 0; i < set->count; ++i) {
1286 dump_impl_set_value(fd, set->inner[i], level+1, i == (set->count - 1));
1287 }
1288 /* only if inner stmts, i.e. with new lines, were dumped */
1289 dump_level(fd, level);
1290 }
1291 if (level > 1) {
1292 dprintf(fd, ")%s\n", last ? "" : ",");
1293 } else {
1294 dprintf(fd, ");\n");
1295 }
1296 }
1297 void PSI_ContextDump(PSI_Context *C, int fd)
1298 {
1299 size_t i, j, k, l;
1300
1301 #ifdef HAVE_LIBJIT
1302 if (C->ops == PSI_Libjit()) {
1303 dprintf(fd, "// psi.engine=jit\n");
1304 }
1305 #endif
1306 #ifdef HAVE_LIBFFI
1307 if (C->ops == PSI_Libffi()) {
1308 dprintf(fd, "// psi.engine=ffi\n");
1309 }
1310 #endif
1311 dprintf(fd, "\n");
1312
1313 if (C->defs) {
1314 for (i = 0; i < C->defs->count; ++i) {
1315 decl_typedef *tdef = C->defs->list[i];
1316
1317 dprintf(fd, "typedef ");
1318 dump_decl_type(fd, tdef->type);
1319 dprintf(fd, " %s%s;\n", tdef->type->type == PSI_T_POINTER ? "*":"",
1320 tdef->alias);
1321 }
1322 dprintf(fd, "\n");
1323 }
1324
1325 if (C->structs) {
1326 for (i = 0; i < C->structs->count; ++i) {
1327 decl_struct *strct = C->structs->list[i];
1328
1329 dprintf(fd, "struct %s::(%zu)", strct->name, strct->size);
1330 if (strct->args && strct->args->count) {
1331 dprintf(fd, " {\n");
1332 for (j = 0; j < strct->args->count; ++j) {
1333 decl_arg *sarg = strct->args->args[j];
1334
1335 dprintf(fd, "\t");
1336 dump_decl_arg(fd, sarg);
1337 dprintf(fd, "::(%zu, %zu);\n", sarg->layout->pos, sarg->layout->len);
1338 }
1339 dprintf(fd, "}");
1340 } else {
1341 dprintf(fd, ";");
1342 }
1343 dprintf(fd, "\n");
1344
1345 }
1346 dprintf(fd, "\n");
1347 }
1348 if (C->consts) {
1349 for (i = 0; i < C->consts->count; ++i) {
1350 constant *cnst = C->consts->list[i];
1351
1352 dprintf(fd, "const %s %s = ", cnst->type->name, cnst->name);
1353 if (cnst->val->type == PSI_T_QUOTED_STRING) {
1354 dprintf(fd, "\"%s\";\n", cnst->val->text);
1355 } else {
1356 dprintf(fd, "%s;\n", cnst->val->text);
1357 }
1358 }
1359 dprintf(fd, "\n");
1360 }
1361 if (C->decls) {
1362 for (i = 0; i < C->decls->count; ++i) {
1363 decl *decl = C->decls->list[i];
1364
1365 dprintf(fd, "%s ", decl->abi->convention);
1366 dump_decl_arg(fd, decl->func);
1367 dprintf(fd, "(");
1368 if (decl->args) {
1369 for (j = 0; j < decl->args->count; ++j) {
1370 if (j) {
1371 dprintf(fd, ", ");
1372 }
1373 dump_decl_arg(fd, decl->args->args[j]);
1374 }
1375 if (decl->args->varargs) {
1376 dprintf(fd, ", ...");
1377 }
1378 }
1379 dprintf(fd, ");\n");
1380 }
1381 dprintf(fd, "\n");
1382 }
1383 if (C->impls) {
1384 for (i = 0; i < C->impls->count; ++i) {
1385 impl *impl = C->impls->list[i];
1386
1387 dprintf(fd, "function %s(", impl->func->name);
1388 if (impl->func->args) {
1389 for (j = 0; j < impl->func->args->count; ++j) {
1390 impl_arg *iarg = impl->func->args->args[j];
1391
1392 dprintf(fd, "%s%s %s$%s",
1393 j ? ", " : "",
1394 iarg->type->name,
1395 iarg->var->reference ? "&" : "",
1396 iarg->var->name);
1397 if (iarg->def) {
1398 dprintf(fd, " = %s", iarg->def->text);
1399 }
1400 }
1401 if (impl->func->args->vararg.name) {
1402 impl_arg *vararg = impl->func->args->vararg.name;
1403
1404 dprintf(fd, ", %s %s...$%s",
1405 vararg->type->name,
1406 vararg->var->reference ? "&" : "",
1407 vararg->var->name);
1408 }
1409 }
1410 dprintf(fd, ") : %s%s {\n",
1411 impl->func->return_reference ? "&":"",
1412 impl->func->return_type->name);
1413 if (impl->stmts) {
1414 for (j = 0; j < impl->stmts->let.count; ++j) {
1415 let_stmt *let = impl->stmts->let.list[j];
1416
1417 dprintf(fd, "\tlet %s", let->var->name);
1418 if (let->val) {
1419 dprintf(fd, " = %s", let->val->flags.one.is_reference ? "&" : "");
1420 switch (let->val->kind) {
1421 case PSI_LET_NULL:
1422 dprintf(fd, "NULL");
1423 break;
1424 case PSI_LET_TMP:
1425 dump_decl_var(fd, let->val->data.var);
1426 break;
1427 case PSI_LET_CALLOC:
1428 dprintf(fd, "calloc(");
1429 dump_num_exp(fd, let->val->data.alloc->nmemb);
1430 dprintf(fd, ", ");
1431 dump_num_exp(fd, let->val->data.alloc->size);
1432 dprintf(fd, ")");
1433 break;
1434 case PSI_LET_FUNC:
1435 dprintf(fd, "%s($%s)", let->val->data.func->name,
1436 let->val->data.func->var->name);
1437 break;
1438 case PSI_LET_NUMEXP:
1439 dump_num_exp(fd, let->val->data.num);
1440 break;
1441
1442 EMPTY_SWITCH_DEFAULT_CASE();
1443 }
1444 dprintf(fd, ";\n");
1445 }
1446 }
1447 for (j = 0; j < impl->stmts->ret.count; ++j) {
1448 return_stmt *ret = impl->stmts->ret.list[j];
1449
1450 dprintf(fd, "\treturn ");
1451 dump_impl_set_value(fd, ret->set, 1, 0);
1452 }
1453 for (j = 0; j < impl->stmts->set.count; ++j) {
1454 set_stmt *set = impl->stmts->set.list[j];
1455
1456 dprintf(fd, "\tset $%s = ", set->var->name);
1457 dump_impl_set_value(fd, set->val, 1, 0);
1458 }
1459 for (j = 0; j < impl->stmts->fre.count; ++j) {
1460 free_stmt *fre = impl->stmts->fre.list[j];
1461
1462 dprintf(fd, "\tfree ");
1463 for (k = 0; k < fre->calls->count; ++k) {
1464 free_call *call = fre->calls->list[k];
1465
1466 if (k) {
1467 dprintf(fd, ", ");
1468 }
1469 dprintf(fd, "%s(", call->func);
1470 for (l = 0; l < call->vars->count; ++l) {
1471 decl_var *fvar = call->vars->vars[l];
1472
1473 dump_decl_var(fd, fvar);
1474 }
1475 dprintf(fd, ");\n");
1476 }
1477 }
1478 }
1479 dprintf(fd, "}\n");
1480 }
1481 dprintf(fd, "\n");
1482 }
1483 }
1484
1485 void PSI_ContextDtor(PSI_Context *C)
1486 {
1487 size_t i;
1488 zend_function_entry *zfe;
1489
1490 if (C->ops->dtor) {
1491 C->ops->dtor(C);
1492 }
1493
1494 free_decl_libs(&C->psi.libs);
1495
1496 if (C->data) {
1497 for (i = 0; i < C->count; ++i) {
1498 PSI_DataDtor(&C->data[i]);
1499 }
1500 free(C->data);
1501 }
1502
1503 if (C->closures) {
1504 for (zfe = C->closures; zfe->fname; ++zfe) {
1505 free((void *) zfe->arg_info);
1506 }
1507 free(C->closures);
1508 }
1509
1510 if (C->consts) {
1511 if (C->consts->list) {
1512 free(C->consts->list);
1513 }
1514 free(C->consts);
1515 }
1516 if (C->defs) {
1517 if (C->defs->list) {
1518 free(C->defs->list);
1519 }
1520 free(C->defs);
1521 }
1522 if (C->structs) {
1523 if (C->structs->list) {
1524 free(C->structs->list);
1525 }
1526 free(C->structs);
1527 }
1528 if (C->decls) {
1529 if (C->decls->list) {
1530 free(C->decls->list);
1531 }
1532 free(C->decls);
1533 }
1534 if (C->impls) {
1535 if (C->impls->list) {
1536 free(C->impls->list);
1537 }
1538 free(C->impls);
1539 }
1540
1541 memset(C, 0, sizeof(*C));
1542 }
1543
1544 void PSI_ContextFree(PSI_Context **C)
1545 {
1546 if (*C) {
1547 PSI_ContextDtor(*C);
1548 free(*C);
1549 *C = NULL;
1550 }
1551 }
PHP System Interface / POSIX Standard Interface