1 /*
2 +----------------------------------------------------------------------+
3 | Zend Engine |
4 +----------------------------------------------------------------------+
5 | Copyright (c) Zend Technologies Ltd. (http://www.zend.com) |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 2.00 of the Zend license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.zend.com/license/2_00.txt. |
11 | If you did not receive a copy of the Zend license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@zend.com so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Andi Gutmans <andi@php.net> |
16 | Zeev Suraski <zeev@php.net> |
17 +----------------------------------------------------------------------+
18 */
19
20 #ifndef ZEND_COMPILE_H
21 #define ZEND_COMPILE_H
22
23 #include "zend.h"
24 #include "zend_ast.h"
25
26 #include <stdarg.h>
27
28 #include "zend_llist.h"
29
30 #define SET_UNUSED(op) op ## _type = IS_UNUSED
31
32 #define MAKE_NOP(opline) do { \
33 (opline)->op1.num = 0; \
34 (opline)->op2.num = 0; \
35 (opline)->result.num = 0; \
36 (opline)->opcode = ZEND_NOP; \
37 (opline)->op1_type = IS_UNUSED; \
38 (opline)->op2_type = IS_UNUSED; \
39 (opline)->result_type = IS_UNUSED; \
40 } while (0)
41
42 #define RESET_DOC_COMMENT() do { \
43 if (CG(doc_comment)) { \
44 zend_string_release_ex(CG(doc_comment), 0); \
45 CG(doc_comment) = NULL; \
46 } \
47 } while (0)
48
49 typedef struct _zend_op_array zend_op_array;
50 typedef struct _zend_op zend_op;
51
52 /* On 64-bit systems less optimal, but more compact VM code leads to better
53 * performance. So on 32-bit systems we use absolute addresses for jump
54 * targets and constants, but on 64-bit systems realtive 32-bit offsets */
55 #if SIZEOF_SIZE_T == 4
56 # define ZEND_USE_ABS_JMP_ADDR 1
57 # define ZEND_USE_ABS_CONST_ADDR 1
58 #else
59 # define ZEND_USE_ABS_JMP_ADDR 0
60 # define ZEND_USE_ABS_CONST_ADDR 0
61 #endif
62
63 typedef union _znode_op {
64 uint32_t constant;
65 uint32_t var;
66 uint32_t num;
67 uint32_t opline_num; /* Needs to be signed */
68 #if ZEND_USE_ABS_JMP_ADDR
69 zend_op *jmp_addr;
70 #else
71 uint32_t jmp_offset;
72 #endif
73 #if ZEND_USE_ABS_CONST_ADDR
74 zval *zv;
75 #endif
76 } znode_op;
77
78 typedef struct _znode { /* used only during compilation */
79 zend_uchar op_type;
80 zend_uchar flag;
81 union {
82 znode_op op;
83 zval constant; /* replaced by literal/zv */
84 } u;
85 } znode;
86
87 /* Temporarily defined here, to avoid header ordering issues */
88 typedef struct _zend_ast_znode {
89 zend_ast_kind kind;
90 zend_ast_attr attr;
91 uint32_t lineno;
92 znode node;
93 } zend_ast_znode;
94
95 ZEND_API zend_ast * ZEND_FASTCALL zend_ast_create_znode(znode *node);
96
zend_ast_get_znode(zend_ast * ast)97 static zend_always_inline znode *zend_ast_get_znode(zend_ast *ast) {
98 return &((zend_ast_znode *) ast)->node;
99 }
100
101 typedef struct _zend_declarables {
102 zend_long ticks;
103 } zend_declarables;
104
105 /* Compilation context that is different for each file, but shared between op arrays. */
106 typedef struct _zend_file_context {
107 zend_declarables declarables;
108
109 zend_string *current_namespace;
110 zend_bool in_namespace;
111 zend_bool has_bracketed_namespaces;
112
113 HashTable *imports;
114 HashTable *imports_function;
115 HashTable *imports_const;
116
117 HashTable seen_symbols;
118 } zend_file_context;
119
120 typedef union _zend_parser_stack_elem {
121 zend_ast *ast;
122 zend_string *str;
123 zend_ulong num;
124 unsigned char *ptr;
125 } zend_parser_stack_elem;
126
127 void zend_compile_top_stmt(zend_ast *ast);
128 void zend_compile_stmt(zend_ast *ast);
129 void zend_compile_expr(znode *node, zend_ast *ast);
130 zend_op *zend_compile_var(znode *node, zend_ast *ast, uint32_t type, int by_ref);
131 void zend_eval_const_expr(zend_ast **ast_ptr);
132 void zend_const_expr_to_zval(zval *result, zend_ast *ast);
133
134 typedef int (*user_opcode_handler_t) (zend_execute_data *execute_data);
135
136 struct _zend_op {
137 const void *handler;
138 znode_op op1;
139 znode_op op2;
140 znode_op result;
141 uint32_t extended_value;
142 uint32_t lineno;
143 zend_uchar opcode;
144 zend_uchar op1_type;
145 zend_uchar op2_type;
146 zend_uchar result_type;
147 };
148
149
150 typedef struct _zend_brk_cont_element {
151 int start;
152 int cont;
153 int brk;
154 int parent;
155 zend_bool is_switch;
156 } zend_brk_cont_element;
157
158 typedef struct _zend_label {
159 int brk_cont;
160 uint32_t opline_num;
161 } zend_label;
162
163 typedef struct _zend_try_catch_element {
164 uint32_t try_op;
165 uint32_t catch_op; /* ketchup! */
166 uint32_t finally_op;
167 uint32_t finally_end;
168 } zend_try_catch_element;
169
170 #define ZEND_LIVE_TMPVAR 0
171 #define ZEND_LIVE_LOOP 1
172 #define ZEND_LIVE_SILENCE 2
173 #define ZEND_LIVE_ROPE 3
174 #define ZEND_LIVE_NEW 4
175 #define ZEND_LIVE_MASK 7
176
177 typedef struct _zend_live_range {
178 uint32_t var; /* low bits are used for variable type (ZEND_LIVE_* macros) */
179 uint32_t start;
180 uint32_t end;
181 } zend_live_range;
182
183 /* Compilation context that is different for each op array. */
184 typedef struct _zend_oparray_context {
185 uint32_t opcodes_size;
186 int vars_size;
187 int literals_size;
188 uint32_t fast_call_var;
189 uint32_t try_catch_offset;
190 int current_brk_cont;
191 int last_brk_cont;
192 zend_brk_cont_element *brk_cont_array;
193 HashTable *labels;
194 } zend_oparray_context;
195
196 /* Class, property and method flags class|meth.|prop.|const*/
197 /* | | | */
198 /* Common flags | | | */
199 /* ============ | | | */
200 /* | | | */
201 /* Visibility flags (public < protected < private) | | | */
202 #define ZEND_ACC_PUBLIC (1 << 0) /* | X | X | X */
203 #define ZEND_ACC_PROTECTED (1 << 1) /* | X | X | X */
204 #define ZEND_ACC_PRIVATE (1 << 2) /* | X | X | X */
205 /* | | | */
206 /* Property or method overrides private one | | | */
207 #define ZEND_ACC_CHANGED (1 << 3) /* | X | X | */
208 /* | | | */
209 /* Staic method or property | | | */
210 #define ZEND_ACC_STATIC (1 << 4) /* | X | X | */
211 /* | | | */
212 /* Final class or method | | | */
213 #define ZEND_ACC_FINAL (1 << 5) /* X | X | | */
214 /* | | | */
215 /* Abstract method | | | */
216 #define ZEND_ACC_ABSTRACT (1 << 6) /* X | X | | */
217 #define ZEND_ACC_EXPLICIT_ABSTRACT_CLASS (1 << 6) /* X | | | */
218 /* | | | */
219 /* Immutable op_array and class_entries | | | */
220 /* (implemented only for lazy loading of op_arrays) | | | */
221 #define ZEND_ACC_IMMUTABLE (1 << 7) /* X | X | | */
222 /* | | | */
223 /* Function has typed arguments / class has typed props | | | */
224 #define ZEND_ACC_HAS_TYPE_HINTS (1 << 8) /* X | X | | */
225 /* | | | */
226 /* Top-level class or function declaration | | | */
227 #define ZEND_ACC_TOP_LEVEL (1 << 9) /* X | X | | */
228 /* | | | */
229 /* op_array or class is preloaded | | | */
230 #define ZEND_ACC_PRELOADED (1 << 10) /* X | X | | */
231 /* | | | */
232 /* Class Flags (unused: 24...) | | | */
233 /* =========== | | | */
234 /* | | | */
235 /* Special class types | | | */
236 #define ZEND_ACC_INTERFACE (1 << 0) /* X | | | */
237 #define ZEND_ACC_TRAIT (1 << 1) /* X | | | */
238 #define ZEND_ACC_ANON_CLASS (1 << 2) /* X | | | */
239 /* | | | */
240 /* Class linked with parent, interfacs and traits | | | */
241 #define ZEND_ACC_LINKED (1 << 3) /* X | | | */
242 /* | | | */
243 /* class is abstarct, since it is set by any | | | */
244 /* abstract method | | | */
245 #define ZEND_ACC_IMPLICIT_ABSTRACT_CLASS (1 << 4) /* X | | | */
246 /* | | | */
247 /* Class has magic methods __get/__set/__unset/ | | | */
248 /* __isset that use guards | | | */
249 #define ZEND_ACC_USE_GUARDS (1 << 11) /* X | | | */
250 /* | | | */
251 /* Class constants updated | | | */
252 #define ZEND_ACC_CONSTANTS_UPDATED (1 << 12) /* X | | | */
253 /* | | | */
254 /* Class extends another class | | | */
255 #define ZEND_ACC_INHERITED (1 << 13) /* X | | | */
256 /* | | | */
257 /* Class implements interface(s) | | | */
258 #define ZEND_ACC_IMPLEMENT_INTERFACES (1 << 14) /* X | | | */
259 /* | | | */
260 /* Class uses trait(s) | | | */
261 #define ZEND_ACC_IMPLEMENT_TRAITS (1 << 15) /* X | | | */
262 /* | | | */
263 /* User class has methods with static variables | | | */
264 #define ZEND_HAS_STATIC_IN_METHODS (1 << 16) /* X | | | */
265 /* | | | */
266 /* Whether all property types are resolved to CEs | | | */
267 #define ZEND_ACC_PROPERTY_TYPES_RESOLVED (1 << 17) /* X | | | */
268 /* | | | */
269 /* Children must reuse parent get_iterator() | | | */
270 #define ZEND_ACC_REUSE_GET_ITERATOR (1 << 18) /* X | | | */
271 /* | | | */
272 /* Parent class is resolved (CE). | | | */
273 #define ZEND_ACC_RESOLVED_PARENT (1 << 19) /* X | | | */
274 /* | | | */
275 /* Interfaces are resolved (CEs). | | | */
276 #define ZEND_ACC_RESOLVED_INTERFACES (1 << 20) /* X | | | */
277 /* | | | */
278 /* Class has unresolved variance obligations. | | | */
279 #define ZEND_ACC_UNRESOLVED_VARIANCE (1 << 21) /* X | | | */
280 /* | | | */
281 /* Class is linked apart from variance obligations. | | | */
282 #define ZEND_ACC_NEARLY_LINKED (1 << 22) /* X | | | */
283 /* | | | */
284 /* Whether this class was used in its unlinked state. | | | */
285 #define ZEND_ACC_HAS_UNLINKED_USES (1 << 23) /* X | | | */
286 /* | | | */
287 /* Function Flags (unused: 23, 26) | | | */
288 /* ============== | | | */
289 /* | | | */
290 /* deprecation flag | | | */
291 #define ZEND_ACC_DEPRECATED (1 << 11) /* | X | | */
292 /* | | | */
293 /* Function returning by reference | | | */
294 #define ZEND_ACC_RETURN_REFERENCE (1 << 12) /* | X | | */
295 /* | | | */
296 /* Function has a return type | | | */
297 #define ZEND_ACC_HAS_RETURN_TYPE (1 << 13) /* | X | | */
298 /* | | | */
299 /* Function with variable number of arguments | | | */
300 #define ZEND_ACC_VARIADIC (1 << 14) /* | X | | */
301 /* | | | */
302 /* op_array has finally blocks (user only) | | | */
303 #define ZEND_ACC_HAS_FINALLY_BLOCK (1 << 15) /* | X | | */
304 /* | | | */
305 /* "main" op_array with | | | */
306 /* ZEND_DECLARE_CLASS_DELAYED opcodes | | | */
307 #define ZEND_ACC_EARLY_BINDING (1 << 16) /* | X | | */
308 /* | | | */
309 /* method flag (bc only), any method that has this | | | */
310 /* flag can be used statically and non statically. | | | */
311 #define ZEND_ACC_ALLOW_STATIC (1 << 17) /* | X | | */
312 /* | | | */
313 /* call through user function trampoline. e.g. | | | */
314 /* __call, __callstatic | | | */
315 #define ZEND_ACC_CALL_VIA_TRAMPOLINE (1 << 18) /* | X | | */
316 /* | | | */
317 /* disable inline caching | | | */
318 #define ZEND_ACC_NEVER_CACHE (1 << 19) /* | X | | */
319 /* | | | */
320 /* Closure related | | | */
321 #define ZEND_ACC_CLOSURE (1 << 20) /* | X | | */
322 #define ZEND_ACC_FAKE_CLOSURE (1 << 21) /* | X | | */
323 /* | | | */
324 /* run_time_cache allocated on heap (user only) | | | */
325 #define ZEND_ACC_HEAP_RT_CACHE (1 << 22) /* | X | | */
326 /* | | | */
327 /* method flag used by Closure::__invoke() (int only) | | | */
328 #define ZEND_ACC_USER_ARG_INFO (1 << 22) /* | X | | */
329 /* | | | */
330 #define ZEND_ACC_GENERATOR (1 << 24) /* | X | | */
331 /* | | | */
332 /* function was processed by pass two (user only) | | | */
333 #define ZEND_ACC_DONE_PASS_TWO (1 << 25) /* | X | | */
334 /* | | | */
335 /* internal function is allocated at arena (int only) | | | */
336 #define ZEND_ACC_ARENA_ALLOCATED (1 << 25) /* | X | | */
337 /* | | | */
338 /* op_array is a clone of trait method | | | */
339 #define ZEND_ACC_TRAIT_CLONE (1 << 27) /* | X | | */
340 /* | | | */
341 /* functions is a constructor | | | */
342 #define ZEND_ACC_CTOR (1 << 28) /* | X | | */
343 /* | | | */
344 /* function is a destructor | | | */
345 #define ZEND_ACC_DTOR (1 << 29) /* | X | | */
346 /* | | | */
347 /* closure uses $this | | | */
348 #define ZEND_ACC_USES_THIS (1 << 30) /* | X | | */
349 /* | | | */
350 /* op_array uses strict mode types | | | */
351 #define ZEND_ACC_STRICT_TYPES (1U << 31) /* | X | | */
352
353
354 #define ZEND_ACC_PPP_MASK (ZEND_ACC_PUBLIC | ZEND_ACC_PROTECTED | ZEND_ACC_PRIVATE)
355
356 /* call through internal function handler. e.g. Closure::invoke() */
357 #define ZEND_ACC_CALL_VIA_HANDLER ZEND_ACC_CALL_VIA_TRAMPOLINE
358
359 char *zend_visibility_string(uint32_t fn_flags);
360
361 typedef struct _zend_property_info {
362 uint32_t offset; /* property offset for object properties or
363 property index for static properties */
364 uint32_t flags;
365 zend_string *name;
366 zend_string *doc_comment;
367 zend_class_entry *ce;
368 zend_type type;
369 } zend_property_info;
370
371 #define OBJ_PROP(obj, offset) \
372 ((zval*)((char*)(obj) + offset))
373 #define OBJ_PROP_NUM(obj, num) \
374 (&(obj)->properties_table[(num)])
375 #define OBJ_PROP_TO_OFFSET(num) \
376 ((uint32_t)(XtOffsetOf(zend_object, properties_table) + sizeof(zval) * (num)))
377 #define OBJ_PROP_TO_NUM(offset) \
378 ((offset - OBJ_PROP_TO_OFFSET(0)) / sizeof(zval))
379
380 typedef struct _zend_class_constant {
381 zval value; /* access flags are stored in reserved: zval.u2.access_flags */
382 zend_string *doc_comment;
383 zend_class_entry *ce;
384 } zend_class_constant;
385
386 /* arg_info for internal functions */
387 typedef struct _zend_internal_arg_info {
388 const char *name;
389 zend_type type;
390 zend_uchar pass_by_reference;
391 zend_bool is_variadic;
392 } zend_internal_arg_info;
393
394 /* arg_info for user functions */
395 typedef struct _zend_arg_info {
396 zend_string *name;
397 zend_type type;
398 zend_uchar pass_by_reference;
399 zend_bool is_variadic;
400 } zend_arg_info;
401
402 /* the following structure repeats the layout of zend_internal_arg_info,
403 * but its fields have different meaning. It's used as the first element of
404 * arg_info array to define properties of internal functions.
405 * It's also used for the return type.
406 */
407 typedef struct _zend_internal_function_info {
408 zend_uintptr_t required_num_args;
409 zend_type type;
410 zend_bool return_reference;
411 zend_bool _is_variadic;
412 } zend_internal_function_info;
413
414 struct _zend_op_array {
415 /* Common elements */
416 zend_uchar type;
417 zend_uchar arg_flags[3]; /* bitset of arg_info.pass_by_reference */
418 uint32_t fn_flags;
419 zend_string *function_name;
420 zend_class_entry *scope;
421 zend_function *prototype;
422 uint32_t num_args;
423 uint32_t required_num_args;
424 zend_arg_info *arg_info;
425 /* END of common elements */
426
427 int cache_size; /* number of run_time_cache_slots * sizeof(void*) */
428 int last_var; /* number of CV variables */
429 uint32_t T; /* number of temporary variables */
430 uint32_t last; /* number of opcodes */
431
432 zend_op *opcodes;
433 ZEND_MAP_PTR_DEF(void **, run_time_cache);
434 ZEND_MAP_PTR_DEF(HashTable *, static_variables_ptr);
435 HashTable *static_variables;
436 zend_string **vars; /* names of CV variables */
437
438 uint32_t *refcount;
439
440 int last_live_range;
441 int last_try_catch;
442 zend_live_range *live_range;
443 zend_try_catch_element *try_catch_array;
444
445 zend_string *filename;
446 uint32_t line_start;
447 uint32_t line_end;
448 zend_string *doc_comment;
449
450 int last_literal;
451 zval *literals;
452
453 void *reserved[ZEND_MAX_RESERVED_RESOURCES];
454 };
455
456
457 #define ZEND_RETURN_VALUE 0
458 #define ZEND_RETURN_REFERENCE 1
459
460 /* zend_internal_function_handler */
461 typedef void (ZEND_FASTCALL *zif_handler)(INTERNAL_FUNCTION_PARAMETERS);
462
463 typedef struct _zend_internal_function {
464 /* Common elements */
465 zend_uchar type;
466 zend_uchar arg_flags[3]; /* bitset of arg_info.pass_by_reference */
467 uint32_t fn_flags;
468 zend_string* function_name;
469 zend_class_entry *scope;
470 zend_function *prototype;
471 uint32_t num_args;
472 uint32_t required_num_args;
473 zend_internal_arg_info *arg_info;
474 /* END of common elements */
475
476 zif_handler handler;
477 struct _zend_module_entry *module;
478 void *reserved[ZEND_MAX_RESERVED_RESOURCES];
479 } zend_internal_function;
480
481 #define ZEND_FN_SCOPE_NAME(function) ((function) && (function)->common.scope ? ZSTR_VAL((function)->common.scope->name) : "")
482
483 union _zend_function {
484 zend_uchar type; /* MUST be the first element of this struct! */
485 uint32_t quick_arg_flags;
486
487 struct {
488 zend_uchar type; /* never used */
489 zend_uchar arg_flags[3]; /* bitset of arg_info.pass_by_reference */
490 uint32_t fn_flags;
491 zend_string *function_name;
492 zend_class_entry *scope;
493 zend_function *prototype;
494 uint32_t num_args;
495 uint32_t required_num_args;
496 zend_arg_info *arg_info;
497 } common;
498
499 zend_op_array op_array;
500 zend_internal_function internal_function;
501 };
502
503 struct _zend_execute_data {
504 const zend_op *opline; /* executed opline */
505 zend_execute_data *call; /* current call */
506 zval *return_value;
507 zend_function *func; /* executed function */
508 zval This; /* this + call_info + num_args */
509 zend_execute_data *prev_execute_data;
510 zend_array *symbol_table;
511 void **run_time_cache; /* cache op_array->run_time_cache */
512 };
513
514 #define ZEND_CALL_HAS_THIS IS_OBJECT_EX
515
516 /* Top 16 bits of Z_TYPE_INFO(EX(This)) are used as call_info flags */
517 #define ZEND_CALL_FUNCTION (0 << 16)
518 #define ZEND_CALL_CODE (1 << 16)
519 #define ZEND_CALL_NESTED (0 << 17)
520 #define ZEND_CALL_TOP (1 << 17)
521 #define ZEND_CALL_ALLOCATED (1 << 18)
522 #define ZEND_CALL_FREE_EXTRA_ARGS (1 << 19)
523 #define ZEND_CALL_HAS_SYMBOL_TABLE (1 << 20)
524 #define ZEND_CALL_RELEASE_THIS (1 << 21)
525 #define ZEND_CALL_CLOSURE (1 << 22)
526 #define ZEND_CALL_FAKE_CLOSURE (1 << 23)
527 #define ZEND_CALL_GENERATOR (1 << 24)
528 #define ZEND_CALL_DYNAMIC (1 << 25)
529 #define ZEND_CALL_SEND_ARG_BY_REF (1u << 31)
530
531 #define ZEND_CALL_NESTED_FUNCTION (ZEND_CALL_FUNCTION | ZEND_CALL_NESTED)
532 #define ZEND_CALL_NESTED_CODE (ZEND_CALL_CODE | ZEND_CALL_NESTED)
533 #define ZEND_CALL_TOP_FUNCTION (ZEND_CALL_TOP | ZEND_CALL_FUNCTION)
534 #define ZEND_CALL_TOP_CODE (ZEND_CALL_CODE | ZEND_CALL_TOP)
535
536 #define ZEND_CALL_INFO(call) \
537 Z_TYPE_INFO((call)->This)
538
539 #define ZEND_CALL_KIND_EX(call_info) \
540 (call_info & (ZEND_CALL_CODE | ZEND_CALL_TOP))
541
542 #define ZEND_CALL_KIND(call) \
543 ZEND_CALL_KIND_EX(ZEND_CALL_INFO(call))
544
545 #define ZEND_ADD_CALL_FLAG_EX(call_info, flag) do { \
546 call_info |= (flag); \
547 } while (0)
548
549 #define ZEND_DEL_CALL_FLAG_EX(call_info, flag) do { \
550 call_info &= ~(flag); \
551 } while (0)
552
553 #define ZEND_ADD_CALL_FLAG(call, flag) do { \
554 ZEND_ADD_CALL_FLAG_EX(Z_TYPE_INFO((call)->This), flag); \
555 } while (0)
556
557 #define ZEND_DEL_CALL_FLAG(call, flag) do { \
558 ZEND_DEL_CALL_FLAG_EX(Z_TYPE_INFO((call)->This), flag); \
559 } while (0)
560
561 #define ZEND_CALL_NUM_ARGS(call) \
562 (call)->This.u2.num_args
563
564 #define ZEND_CALL_FRAME_SLOT \
565 ((int)((ZEND_MM_ALIGNED_SIZE(sizeof(zend_execute_data)) + ZEND_MM_ALIGNED_SIZE(sizeof(zval)) - 1) / ZEND_MM_ALIGNED_SIZE(sizeof(zval))))
566
567 #define ZEND_CALL_VAR(call, n) \
568 ((zval*)(((char*)(call)) + ((int)(n))))
569
570 #define ZEND_CALL_VAR_NUM(call, n) \
571 (((zval*)(call)) + (ZEND_CALL_FRAME_SLOT + ((int)(n))))
572
573 #define ZEND_CALL_ARG(call, n) \
574 ZEND_CALL_VAR_NUM(call, ((int)(n)) - 1)
575
576 #define EX(element) ((execute_data)->element)
577
578 #define EX_CALL_INFO() ZEND_CALL_INFO(execute_data)
579 #define EX_CALL_KIND() ZEND_CALL_KIND(execute_data)
580 #define EX_NUM_ARGS() ZEND_CALL_NUM_ARGS(execute_data)
581
582 #define ZEND_CALL_USES_STRICT_TYPES(call) \
583 (((call)->func->common.fn_flags & ZEND_ACC_STRICT_TYPES) != 0)
584
585 #define EX_USES_STRICT_TYPES() \
586 ZEND_CALL_USES_STRICT_TYPES(execute_data)
587
588 #define ZEND_ARG_USES_STRICT_TYPES() \
589 (EG(current_execute_data)->prev_execute_data && \
590 EG(current_execute_data)->prev_execute_data->func && \
591 ZEND_CALL_USES_STRICT_TYPES(EG(current_execute_data)->prev_execute_data))
592
593 #define ZEND_RET_USES_STRICT_TYPES() \
594 ZEND_CALL_USES_STRICT_TYPES(EG(current_execute_data))
595
596 #define EX_VAR(n) ZEND_CALL_VAR(execute_data, n)
597 #define EX_VAR_NUM(n) ZEND_CALL_VAR_NUM(execute_data, n)
598
599 #define EX_VAR_TO_NUM(n) ((uint32_t)(ZEND_CALL_VAR(NULL, n) - ZEND_CALL_VAR_NUM(NULL, 0)))
600
601 #define ZEND_OPLINE_TO_OFFSET(opline, target) \
602 ((char*)(target) - (char*)(opline))
603
604 #define ZEND_OPLINE_NUM_TO_OFFSET(op_array, opline, opline_num) \
605 ((char*)&(op_array)->opcodes[opline_num] - (char*)(opline))
606
607 #define ZEND_OFFSET_TO_OPLINE(base, offset) \
608 ((zend_op*)(((char*)(base)) + (int)offset))
609
610 #define ZEND_OFFSET_TO_OPLINE_NUM(op_array, base, offset) \
611 (ZEND_OFFSET_TO_OPLINE(base, offset) - op_array->opcodes)
612
613 #if ZEND_USE_ABS_JMP_ADDR
614
615 /* run-time jump target */
616 # define OP_JMP_ADDR(opline, node) \
617 (node).jmp_addr
618
619 # define ZEND_SET_OP_JMP_ADDR(opline, node, val) do { \
620 (node).jmp_addr = (val); \
621 } while (0)
622
623 /* convert jump target from compile-time to run-time */
624 # define ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, node) do { \
625 (node).jmp_addr = (op_array)->opcodes + (node).opline_num; \
626 } while (0)
627
628 /* convert jump target back from run-time to compile-time */
629 # define ZEND_PASS_TWO_UNDO_JMP_TARGET(op_array, opline, node) do { \
630 (node).opline_num = (node).jmp_addr - (op_array)->opcodes; \
631 } while (0)
632
633 #else
634
635 /* run-time jump target */
636 # define OP_JMP_ADDR(opline, node) \
637 ZEND_OFFSET_TO_OPLINE(opline, (node).jmp_offset)
638
639 # define ZEND_SET_OP_JMP_ADDR(opline, node, val) do { \
640 (node).jmp_offset = ZEND_OPLINE_TO_OFFSET(opline, val); \
641 } while (0)
642
643 /* convert jump target from compile-time to run-time */
644 # define ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, node) do { \
645 (node).jmp_offset = ZEND_OPLINE_NUM_TO_OFFSET(op_array, opline, (node).opline_num); \
646 } while (0)
647
648 /* convert jump target back from run-time to compile-time */
649 # define ZEND_PASS_TWO_UNDO_JMP_TARGET(op_array, opline, node) do { \
650 (node).opline_num = ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, (node).jmp_offset); \
651 } while (0)
652
653 #endif
654
655 /* constant-time constant */
656 # define CT_CONSTANT_EX(op_array, num) \
657 ((op_array)->literals + (num))
658
659 # define CT_CONSTANT(node) \
660 CT_CONSTANT_EX(CG(active_op_array), (node).constant)
661
662 #if ZEND_USE_ABS_CONST_ADDR
663
664 /* run-time constant */
665 # define RT_CONSTANT(opline, node) \
666 (node).zv
667
668 /* convert constant from compile-time to run-time */
669 # define ZEND_PASS_TWO_UPDATE_CONSTANT(op_array, opline, node) do { \
670 (node).zv = CT_CONSTANT_EX(op_array, (node).constant); \
671 } while (0)
672
673 #else
674
675 /* At run-time, constants are allocated together with op_array->opcodes
676 * and addressed relatively to current opline.
677 */
678
679 /* run-time constant */
680 # define RT_CONSTANT(opline, node) \
681 ((zval*)(((char*)(opline)) + (int32_t)(node).constant))
682
683 /* convert constant from compile-time to run-time */
684 # define ZEND_PASS_TWO_UPDATE_CONSTANT(op_array, opline, node) do { \
685 (node).constant = \
686 (((char*)CT_CONSTANT_EX(op_array, (node).constant)) - \
687 ((char*)opline)); \
688 } while (0)
689
690 #endif
691
692 /* convert constant back from run-time to compile-time */
693 #define ZEND_PASS_TWO_UNDO_CONSTANT(op_array, opline, node) do { \
694 (node).constant = RT_CONSTANT(opline, node) - (op_array)->literals; \
695 } while (0)
696
697 #define RUN_TIME_CACHE(op_array) \
698 ZEND_MAP_PTR_GET((op_array)->run_time_cache)
699
700 #define ZEND_OP_ARRAY_EXTENSION(op_array, handle) \
701 ((void**)RUN_TIME_CACHE(op_array))[handle]
702
703 #define IS_UNUSED 0 /* Unused operand */
704 #define IS_CONST (1<<0)
705 #define IS_TMP_VAR (1<<1)
706 #define IS_VAR (1<<2)
707 #define IS_CV (1<<3) /* Compiled variable */
708
709 #define ZEND_EXTRA_VALUE 1
710
711 #include "zend_globals.h"
712
713 BEGIN_EXTERN_C()
714
715 void init_compiler(void);
716 void shutdown_compiler(void);
717 void zend_init_compiler_data_structures(void);
718
719 void zend_oparray_context_begin(zend_oparray_context *prev_context);
720 void zend_oparray_context_end(zend_oparray_context *prev_context);
721 void zend_file_context_begin(zend_file_context *prev_context);
722 void zend_file_context_end(zend_file_context *prev_context);
723
724 extern ZEND_API zend_op_array *(*zend_compile_file)(zend_file_handle *file_handle, int type);
725 extern ZEND_API zend_op_array *(*zend_compile_string)(zval *source_string, char *filename);
726
727 ZEND_API int ZEND_FASTCALL lex_scan(zval *zendlval, zend_parser_stack_elem *elem);
728 void startup_scanner(void);
729 void shutdown_scanner(void);
730
731 ZEND_API zend_string *zend_set_compiled_filename(zend_string *new_compiled_filename);
732 ZEND_API void zend_restore_compiled_filename(zend_string *original_compiled_filename);
733 ZEND_API zend_string *zend_get_compiled_filename(void);
734 ZEND_API int zend_get_compiled_lineno(void);
735 ZEND_API size_t zend_get_scanned_file_offset(void);
736
737 ZEND_API zend_string *zend_get_compiled_variable_name(const zend_op_array *op_array, uint32_t var);
738
739 #ifdef ZTS
740 const char *zend_get_zendtext(void);
741 int zend_get_zendleng(void);
742 #endif
743
744 typedef int (ZEND_FASTCALL *unary_op_type)(zval *, zval *);
745 typedef int (ZEND_FASTCALL *binary_op_type)(zval *, zval *, zval *);
746
747 ZEND_API unary_op_type get_unary_op(int opcode);
748 ZEND_API binary_op_type get_binary_op(int opcode);
749
750 void zend_stop_lexing(void);
751 void zend_emit_final_return(int return_one);
752
753 /* Used during AST construction */
754 zend_ast *zend_ast_append_str(zend_ast *left, zend_ast *right);
755 zend_ast *zend_negate_num_string(zend_ast *ast);
756 uint32_t zend_add_class_modifier(uint32_t flags, uint32_t new_flag);
757 uint32_t zend_add_member_modifier(uint32_t flags, uint32_t new_flag);
758 zend_bool zend_handle_encoding_declaration(zend_ast *ast);
759
760 /* parser-driven code generators */
761 void zend_do_free(znode *op1);
762
763 ZEND_API int do_bind_function(zval *lcname);
764 ZEND_API int do_bind_class(zval *lcname, zend_string *lc_parent_name);
765 ZEND_API uint32_t zend_build_delayed_early_binding_list(const zend_op_array *op_array);
766 ZEND_API void zend_do_delayed_early_binding(zend_op_array *op_array, uint32_t first_early_binding_opline);
767
768 void zend_do_extended_info(void);
769 void zend_do_extended_fcall_begin(void);
770 void zend_do_extended_fcall_end(void);
771
772 void zend_verify_namespace(void);
773
774 void zend_resolve_goto_label(zend_op_array *op_array, zend_op *opline);
775
776 ZEND_API void function_add_ref(zend_function *function);
777
778 #define INITIAL_OP_ARRAY_SIZE 64
779
780
781 /* helper functions in zend_language_scanner.l */
782 ZEND_API zend_op_array *compile_file(zend_file_handle *file_handle, int type);
783 ZEND_API zend_op_array *compile_string(zval *source_string, char *filename);
784 ZEND_API zend_op_array *compile_filename(int type, zval *filename);
785 ZEND_API int zend_execute_scripts(int type, zval *retval, int file_count, ...);
786 ZEND_API int open_file_for_scanning(zend_file_handle *file_handle);
787 ZEND_API void init_op_array(zend_op_array *op_array, zend_uchar type, int initial_ops_size);
788 ZEND_API void destroy_op_array(zend_op_array *op_array);
789 ZEND_API void zend_destroy_file_handle(zend_file_handle *file_handle);
790 ZEND_API void zend_cleanup_internal_class_data(zend_class_entry *ce);
791 ZEND_API void zend_cleanup_internal_classes(void);
792
793 ZEND_API ZEND_COLD void zend_user_exception_handler(void);
794
795 #define zend_try_exception_handler() do { \
796 if (UNEXPECTED(EG(exception))) { \
797 if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) { \
798 zend_user_exception_handler(); \
799 } \
800 } \
801 } while (0)
802
803 void zend_free_internal_arg_info(zend_internal_function *function);
804 ZEND_API void destroy_zend_function(zend_function *function);
805 ZEND_API void zend_function_dtor(zval *zv);
806 ZEND_API void destroy_zend_class(zval *zv);
807 void zend_class_add_ref(zval *zv);
808
809 ZEND_API zend_string *zend_mangle_property_name(const char *src1, size_t src1_length, const char *src2, size_t src2_length, int internal);
810 #define zend_unmangle_property_name(mangled_property, class_name, prop_name) \
811 zend_unmangle_property_name_ex(mangled_property, class_name, prop_name, NULL)
812 ZEND_API int zend_unmangle_property_name_ex(const zend_string *name, const char **class_name, const char **prop_name, size_t *prop_len);
813
zend_get_unmangled_property_name(const zend_string * mangled_prop)814 static zend_always_inline const char *zend_get_unmangled_property_name(const zend_string *mangled_prop) {
815 const char *class_name, *prop_name;
816 zend_unmangle_property_name(mangled_prop, &class_name, &prop_name);
817 return prop_name;
818 }
819
820 #define ZEND_FUNCTION_DTOR zend_function_dtor
821 #define ZEND_CLASS_DTOR destroy_zend_class
822
823 typedef zend_bool (*zend_needs_live_range_cb)(zend_op_array *op_array, zend_op *opline);
824 ZEND_API void zend_recalc_live_ranges(
825 zend_op_array *op_array, zend_needs_live_range_cb needs_live_range);
826
827 ZEND_API int pass_two(zend_op_array *op_array);
828 ZEND_API zend_bool zend_is_compiling(void);
829 ZEND_API char *zend_make_compiled_string_description(const char *name);
830 ZEND_API void zend_initialize_class_data(zend_class_entry *ce, zend_bool nullify_handlers);
831 uint32_t zend_get_class_fetch_type(zend_string *name);
832 ZEND_API zend_uchar zend_get_call_op(const zend_op *init_op, zend_function *fbc);
833 ZEND_API int zend_is_smart_branch(zend_op *opline);
834
835 typedef zend_bool (*zend_auto_global_callback)(zend_string *name);
836 typedef struct _zend_auto_global {
837 zend_string *name;
838 zend_auto_global_callback auto_global_callback;
839 zend_bool jit;
840 zend_bool armed;
841 } zend_auto_global;
842
843 ZEND_API int zend_register_auto_global(zend_string *name, zend_bool jit, zend_auto_global_callback auto_global_callback);
844 ZEND_API void zend_activate_auto_globals(void);
845 ZEND_API zend_bool zend_is_auto_global(zend_string *name);
846 ZEND_API zend_bool zend_is_auto_global_str(char *name, size_t len);
847 ZEND_API size_t zend_dirname(char *path, size_t len);
848 ZEND_API void zend_set_function_arg_flags(zend_function *func);
849
850 int ZEND_FASTCALL zendlex(zend_parser_stack_elem *elem);
851
852 void zend_assert_valid_class_name(const zend_string *const_name);
853
854 /* BEGIN: OPCODES */
855
856 #include "zend_vm_opcodes.h"
857
858 /* END: OPCODES */
859
860 /* class fetches */
861 #define ZEND_FETCH_CLASS_DEFAULT 0
862 #define ZEND_FETCH_CLASS_SELF 1
863 #define ZEND_FETCH_CLASS_PARENT 2
864 #define ZEND_FETCH_CLASS_STATIC 3
865 #define ZEND_FETCH_CLASS_AUTO 4
866 #define ZEND_FETCH_CLASS_INTERFACE 5
867 #define ZEND_FETCH_CLASS_TRAIT 6
868 #define ZEND_FETCH_CLASS_MASK 0x0f
869 #define ZEND_FETCH_CLASS_NO_AUTOLOAD 0x80
870 #define ZEND_FETCH_CLASS_SILENT 0x0100
871 #define ZEND_FETCH_CLASS_EXCEPTION 0x0200
872 #define ZEND_FETCH_CLASS_ALLOW_UNLINKED 0x0400
873 #define ZEND_FETCH_CLASS_ALLOW_NEARLY_LINKED 0x0800
874
875 #define ZEND_PARAM_REF (1<<0)
876 #define ZEND_PARAM_VARIADIC (1<<1)
877
878 #define ZEND_NAME_FQ 0
879 #define ZEND_NAME_NOT_FQ 1
880 #define ZEND_NAME_RELATIVE 2
881
882 #define ZEND_TYPE_NULLABLE (1<<8)
883
884 #define ZEND_ARRAY_SYNTAX_LIST 1 /* list() */
885 #define ZEND_ARRAY_SYNTAX_LONG 2 /* array() */
886 #define ZEND_ARRAY_SYNTAX_SHORT 3 /* [] */
887
888 /* var status for backpatching */
889 #define BP_VAR_R 0
890 #define BP_VAR_W 1
891 #define BP_VAR_RW 2
892 #define BP_VAR_IS 3
893 #define BP_VAR_FUNC_ARG 4
894 #define BP_VAR_UNSET 5
895
896 #define ZEND_INTERNAL_FUNCTION 1
897 #define ZEND_USER_FUNCTION 2
898 #define ZEND_OVERLOADED_FUNCTION 3
899 #define ZEND_EVAL_CODE 4
900 #define ZEND_OVERLOADED_FUNCTION_TEMPORARY 5
901
902 /* A quick check (type == ZEND_USER_FUNCTION || type == ZEND_EVAL_CODE) */
903 #define ZEND_USER_CODE(type) ((type & 1) == 0)
904
905 #define ZEND_INTERNAL_CLASS 1
906 #define ZEND_USER_CLASS 2
907
908 #define ZEND_EVAL (1<<0)
909 #define ZEND_INCLUDE (1<<1)
910 #define ZEND_INCLUDE_ONCE (1<<2)
911 #define ZEND_REQUIRE (1<<3)
912 #define ZEND_REQUIRE_ONCE (1<<4)
913
914 /* global/local fetches */
915 #define ZEND_FETCH_GLOBAL (1<<1)
916 #define ZEND_FETCH_LOCAL (1<<2)
917 #define ZEND_FETCH_GLOBAL_LOCK (1<<3)
918
919 #define ZEND_FETCH_TYPE_MASK 0xe
920
921 /* Only one of these can ever be in use */
922 #define ZEND_FETCH_REF 1
923 #define ZEND_FETCH_DIM_WRITE 2
924 #define ZEND_FETCH_OBJ_WRITE 3
925 #define ZEND_FETCH_OBJ_FLAGS 3
926
927 #define ZEND_ISEMPTY (1<<0)
928
929 #define ZEND_LAST_CATCH (1<<0)
930
931 #define ZEND_FREE_ON_RETURN (1<<0)
932 #define ZEND_FREE_SWITCH (1<<1)
933
934 #define ZEND_SEND_BY_VAL 0u
935 #define ZEND_SEND_BY_REF 1u
936 #define ZEND_SEND_PREFER_REF 2u
937
938 #define ZEND_DIM_IS (1 << 0) /* isset fetch needed for null coalesce */
939 #define ZEND_DIM_ALTERNATIVE_SYNTAX (1 << 1) /* deprecated curly brace usage */
940
941 #define IS_CONSTANT_UNQUALIFIED 0x010
942 #define IS_CONSTANT_CLASS 0x080 /* __CLASS__ in trait */
943 #define IS_CONSTANT_IN_NAMESPACE 0x100
944
zend_check_arg_send_type(const zend_function * zf,uint32_t arg_num,uint32_t mask)945 static zend_always_inline int zend_check_arg_send_type(const zend_function *zf, uint32_t arg_num, uint32_t mask)
946 {
947 arg_num--;
948 if (UNEXPECTED(arg_num >= zf->common.num_args)) {
949 if (EXPECTED((zf->common.fn_flags & ZEND_ACC_VARIADIC) == 0)) {
950 return 0;
951 }
952 arg_num = zf->common.num_args;
953 }
954 return UNEXPECTED((zf->common.arg_info[arg_num].pass_by_reference & mask) != 0);
955 }
956
957 #define ARG_MUST_BE_SENT_BY_REF(zf, arg_num) \
958 zend_check_arg_send_type(zf, arg_num, ZEND_SEND_BY_REF)
959
960 #define ARG_SHOULD_BE_SENT_BY_REF(zf, arg_num) \
961 zend_check_arg_send_type(zf, arg_num, ZEND_SEND_BY_REF|ZEND_SEND_PREFER_REF)
962
963 #define ARG_MAY_BE_SENT_BY_REF(zf, arg_num) \
964 zend_check_arg_send_type(zf, arg_num, ZEND_SEND_PREFER_REF)
965
966 /* Quick API to check first 12 arguments */
967 #define MAX_ARG_FLAG_NUM 12
968
969 #ifdef WORDS_BIGENDIAN
970 # define ZEND_SET_ARG_FLAG(zf, arg_num, mask) do { \
971 (zf)->quick_arg_flags |= ((mask) << ((arg_num) - 1) * 2); \
972 } while (0)
973 # define ZEND_CHECK_ARG_FLAG(zf, arg_num, mask) \
974 (((zf)->quick_arg_flags >> (((arg_num) - 1) * 2)) & (mask))
975 #else
976 # define ZEND_SET_ARG_FLAG(zf, arg_num, mask) do { \
977 (zf)->quick_arg_flags |= (((mask) << 6) << (arg_num) * 2); \
978 } while (0)
979 # define ZEND_CHECK_ARG_FLAG(zf, arg_num, mask) \
980 (((zf)->quick_arg_flags >> (((arg_num) + 3) * 2)) & (mask))
981 #endif
982
983 #define QUICK_ARG_MUST_BE_SENT_BY_REF(zf, arg_num) \
984 ZEND_CHECK_ARG_FLAG(zf, arg_num, ZEND_SEND_BY_REF)
985
986 #define QUICK_ARG_SHOULD_BE_SENT_BY_REF(zf, arg_num) \
987 ZEND_CHECK_ARG_FLAG(zf, arg_num, ZEND_SEND_BY_REF|ZEND_SEND_PREFER_REF)
988
989 #define QUICK_ARG_MAY_BE_SENT_BY_REF(zf, arg_num) \
990 ZEND_CHECK_ARG_FLAG(zf, arg_num, ZEND_SEND_PREFER_REF)
991
992 #define ZEND_RETURN_VAL 0
993 #define ZEND_RETURN_REF 1
994
995 #define ZEND_BIND_VAL 0
996 #define ZEND_BIND_REF 1
997 #define ZEND_BIND_IMPLICIT 2
998
999 #define ZEND_RETURNS_FUNCTION (1<<0)
1000 #define ZEND_RETURNS_VALUE (1<<1)
1001
1002 #define ZEND_ARRAY_ELEMENT_REF (1<<0)
1003 #define ZEND_ARRAY_NOT_PACKED (1<<1)
1004 #define ZEND_ARRAY_SIZE_SHIFT 2
1005
1006 /* Attribute for ternary inside parentheses */
1007 #define ZEND_PARENTHESIZED_CONDITIONAL 1
1008
1009 /* For "use" AST nodes and the seen symbol table */
1010 #define ZEND_SYMBOL_CLASS (1<<0)
1011 #define ZEND_SYMBOL_FUNCTION (1<<1)
1012 #define ZEND_SYMBOL_CONST (1<<2)
1013
1014 /* All increment opcodes are even (decrement are odd) */
1015 #define ZEND_IS_INCREMENT(opcode) (((opcode) & 1) == 0)
1016
1017 #define ZEND_IS_BINARY_ASSIGN_OP_OPCODE(opcode) \
1018 (((opcode) >= ZEND_ADD) && ((opcode) <= ZEND_POW))
1019
1020 /* Pseudo-opcodes that are used only temporarily during compilation */
1021 #define ZEND_PARENTHESIZED_CONCAT 252 /* removed with PHP 8 */
1022 #define ZEND_GOTO 253
1023 #define ZEND_BRK 254
1024 #define ZEND_CONT 255
1025
1026 END_EXTERN_C()
1027
1028 #define ZEND_CLONE_FUNC_NAME "__clone"
1029 #define ZEND_CONSTRUCTOR_FUNC_NAME "__construct"
1030 #define ZEND_DESTRUCTOR_FUNC_NAME "__destruct"
1031 #define ZEND_GET_FUNC_NAME "__get"
1032 #define ZEND_SET_FUNC_NAME "__set"
1033 #define ZEND_UNSET_FUNC_NAME "__unset"
1034 #define ZEND_ISSET_FUNC_NAME "__isset"
1035 #define ZEND_CALL_FUNC_NAME "__call"
1036 #define ZEND_CALLSTATIC_FUNC_NAME "__callstatic"
1037 #define ZEND_TOSTRING_FUNC_NAME "__tostring"
1038 #define ZEND_AUTOLOAD_FUNC_NAME "__autoload"
1039 #define ZEND_INVOKE_FUNC_NAME "__invoke"
1040 #define ZEND_DEBUGINFO_FUNC_NAME "__debuginfo"
1041
1042 /* The following constants may be combined in CG(compiler_options)
1043 * to change the default compiler behavior */
1044
1045 /* generate extended debug information */
1046 #define ZEND_COMPILE_EXTENDED_STMT (1<<0)
1047 #define ZEND_COMPILE_EXTENDED_FCALL (1<<1)
1048 #define ZEND_COMPILE_EXTENDED_INFO (ZEND_COMPILE_EXTENDED_STMT|ZEND_COMPILE_EXTENDED_FCALL)
1049
1050 /* call op_array handler of extendions */
1051 #define ZEND_COMPILE_HANDLE_OP_ARRAY (1<<2)
1052
1053 /* generate ZEND_INIT_FCALL_BY_NAME for internal functions instead of ZEND_INIT_FCALL */
1054 #define ZEND_COMPILE_IGNORE_INTERNAL_FUNCTIONS (1<<3)
1055
1056 /* don't perform early binding for classes inherited form internal ones;
1057 * in namespaces assume that internal class that doesn't exist at compile-time
1058 * may apper in run-time */
1059 #define ZEND_COMPILE_IGNORE_INTERNAL_CLASSES (1<<4)
1060
1061 /* generate ZEND_DECLARE_CLASS_DELAYED opcode to delay early binding */
1062 #define ZEND_COMPILE_DELAYED_BINDING (1<<5)
1063
1064 /* disable constant substitution at compile-time */
1065 #define ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION (1<<6)
1066
1067 /* disable usage of builtin instruction for strlen() */
1068 #define ZEND_COMPILE_NO_BUILTIN_STRLEN (1<<7)
1069
1070 /* disable substitution of persistent constants at compile-time */
1071 #define ZEND_COMPILE_NO_PERSISTENT_CONSTANT_SUBSTITUTION (1<<8)
1072
1073 /* generate ZEND_INIT_FCALL_BY_NAME for userland functions instead of ZEND_INIT_FCALL */
1074 #define ZEND_COMPILE_IGNORE_USER_FUNCTIONS (1<<9)
1075
1076 /* force ZEND_ACC_USE_GUARDS for all classes */
1077 #define ZEND_COMPILE_GUARDS (1<<10)
1078
1079 /* disable builtin special case function calls */
1080 #define ZEND_COMPILE_NO_BUILTINS (1<<11)
1081
1082 /* result of compilation may be stored in file cache */
1083 #define ZEND_COMPILE_WITH_FILE_CACHE (1<<12)
1084
1085 /* ignore functions and classes declared in other files */
1086 #define ZEND_COMPILE_IGNORE_OTHER_FILES (1<<13)
1087
1088 /* this flag is set when compiler invoked by opcache_compile_file() */
1089 #define ZEND_COMPILE_WITHOUT_EXECUTION (1<<14)
1090
1091 /* this flag is set when compiler invoked during preloading */
1092 #define ZEND_COMPILE_PRELOAD (1<<15)
1093
1094 /* disable jumptable optimization for switch statements */
1095 #define ZEND_COMPILE_NO_JUMPTABLES (1<<16)
1096
1097 /* this flag is set when compiler invoked during preloading in separate process */
1098 #define ZEND_COMPILE_PRELOAD_IN_CHILD (1<<17)
1099
1100 /* The default value for CG(compiler_options) */
1101 #define ZEND_COMPILE_DEFAULT ZEND_COMPILE_HANDLE_OP_ARRAY
1102
1103 /* The default value for CG(compiler_options) during eval() */
1104 #define ZEND_COMPILE_DEFAULT_FOR_EVAL 0
1105
1106 ZEND_API zend_bool zend_binary_op_produces_numeric_string_error(uint32_t opcode, zval *op1, zval *op2);
1107
1108 #endif /* ZEND_COMPILE_H */
1109
