1 /* 2 +----------------------------------------------------------------------+ 3 | Zend Engine | 4 +----------------------------------------------------------------------+ 5 | Copyright (c) 1998-2015 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@zend.com> | 16 | Zeev Suraski <zeev@zend.com> | 17 +----------------------------------------------------------------------+ 18 */ 19 20 /* $Id$ */ 21 22 #ifndef ZEND_COMPILE_H 23 #define ZEND_COMPILE_H 24 25 #include "zend.h" 26 27 #ifdef HAVE_STDARG_H 28 # include <stdarg.h> 29 #endif 30 31 #include "zend_llist.h" 32 33 #define DEBUG_ZEND 0 34 35 #define FREE_PNODE(znode) zval_dtor(&znode->u.constant); 36 37 #define SET_UNUSED(op) op ## _type = IS_UNUSED 38 39 #define INC_BPC(op_array) if (op_array->fn_flags & ZEND_ACC_INTERACTIVE) { (CG(context).backpatch_count++); } 40 #define DEC_BPC(op_array) if (op_array->fn_flags & ZEND_ACC_INTERACTIVE) { (CG(context).backpatch_count--); } 41 #define HANDLE_INTERACTIVE() if (CG(active_op_array)->fn_flags & ZEND_ACC_INTERACTIVE) { execute_new_code(TSRMLS_C); } 42 #define DO_TICKS() if (Z_LVAL(CG(declarables).ticks)) { zend_do_ticks(TSRMLS_C); } 43 44 #define RESET_DOC_COMMENT() \ 45 { \ 46 if (CG(doc_comment)) { \ 47 efree(CG(doc_comment)); \ 48 CG(doc_comment) = NULL; \ 49 } \ 50 CG(doc_comment_len) = 0; \ 51 } 52 53 typedef struct _zend_op_array zend_op_array; 54 typedef struct _zend_op zend_op; 55 56 typedef struct _zend_compiler_context { 57 zend_uint opcodes_size; 58 int vars_size; 59 int literals_size; 60 int current_brk_cont; 61 int backpatch_count; 62 int nested_calls; 63 int used_stack; 64 int in_finally; 65 HashTable *labels; 66 } zend_compiler_context; 67 68 typedef struct _zend_literal { 69 zval constant; 70 zend_ulong hash_value; 71 zend_uint cache_slot; 72 } zend_literal; 73 74 #define Z_HASH_P(zv) \ 75 (((zend_literal*)(zv))->hash_value) 76 77 typedef union _znode_op { 78 zend_uint constant; 79 zend_uint var; 80 zend_uint num; 81 zend_ulong hash; 82 zend_uint opline_num; /* Needs to be signed */ 83 zend_op *jmp_addr; 84 zval *zv; 85 zend_literal *literal; 86 void *ptr; /* Used for passing pointers from the compile to execution phase, currently used for traits */ 87 } znode_op; 88 89 typedef struct _znode { /* used only during compilation */ 90 int op_type; 91 union { 92 znode_op op; 93 zval constant; /* replaced by literal/zv */ 94 zend_op_array *op_array; 95 } u; 96 zend_uint EA; /* extended attributes */ 97 } znode; 98 99 typedef struct _zend_execute_data zend_execute_data; 100 101 #define ZEND_OPCODE_HANDLER_ARGS zend_execute_data *execute_data TSRMLS_DC 102 #define ZEND_OPCODE_HANDLER_ARGS_PASSTHRU execute_data TSRMLS_CC 103 104 typedef int (*user_opcode_handler_t) (ZEND_OPCODE_HANDLER_ARGS); 105 typedef int (ZEND_FASTCALL *opcode_handler_t) (ZEND_OPCODE_HANDLER_ARGS); 106 107 extern ZEND_API opcode_handler_t *zend_opcode_handlers; 108 109 struct _zend_op { 110 opcode_handler_t handler; 111 znode_op op1; 112 znode_op op2; 113 znode_op result; 114 ulong extended_value; 115 uint lineno; 116 zend_uchar opcode; 117 zend_uchar op1_type; 118 zend_uchar op2_type; 119 zend_uchar result_type; 120 }; 121 122 123 typedef struct _zend_brk_cont_element { 124 int start; 125 int cont; 126 int brk; 127 int parent; 128 } zend_brk_cont_element; 129 130 typedef struct _zend_label { 131 int brk_cont; 132 zend_uint opline_num; 133 } zend_label; 134 135 typedef struct _zend_try_catch_element { 136 zend_uint try_op; 137 zend_uint catch_op; /* ketchup! */ 138 zend_uint finally_op; 139 zend_uint finally_end; 140 } zend_try_catch_element; 141 142 #if SIZEOF_LONG == 8 143 #define THIS_HASHVAL 210728972157UL 144 #else 145 #define THIS_HASHVAL 275574653UL 146 #endif 147 148 /* method flags (types) */ 149 #define ZEND_ACC_STATIC 0x01 150 #define ZEND_ACC_ABSTRACT 0x02 151 #define ZEND_ACC_FINAL 0x04 152 #define ZEND_ACC_IMPLEMENTED_ABSTRACT 0x08 153 154 /* class flags (types) */ 155 /* ZEND_ACC_IMPLICIT_ABSTRACT_CLASS is used for abstract classes (since it is set by any abstract method even interfaces MAY have it set, too). */ 156 /* ZEND_ACC_EXPLICIT_ABSTRACT_CLASS denotes that a class was explicitly defined as abstract by using the keyword. */ 157 #define ZEND_ACC_IMPLICIT_ABSTRACT_CLASS 0x10 158 #define ZEND_ACC_EXPLICIT_ABSTRACT_CLASS 0x20 159 #define ZEND_ACC_FINAL_CLASS 0x40 160 #define ZEND_ACC_INTERFACE 0x80 161 #define ZEND_ACC_TRAIT 0x120 162 163 /* op_array flags */ 164 #define ZEND_ACC_INTERACTIVE 0x10 165 166 /* method flags (visibility) */ 167 /* The order of those must be kept - public < protected < private */ 168 #define ZEND_ACC_PUBLIC 0x100 169 #define ZEND_ACC_PROTECTED 0x200 170 #define ZEND_ACC_PRIVATE 0x400 171 #define ZEND_ACC_PPP_MASK (ZEND_ACC_PUBLIC | ZEND_ACC_PROTECTED | ZEND_ACC_PRIVATE) 172 173 #define ZEND_ACC_CHANGED 0x800 174 #define ZEND_ACC_IMPLICIT_PUBLIC 0x1000 175 176 /* method flags (special method detection) */ 177 #define ZEND_ACC_CTOR 0x2000 178 #define ZEND_ACC_DTOR 0x4000 179 #define ZEND_ACC_CLONE 0x8000 180 181 /* method flag (bc only), any method that has this flag can be used statically and non statically. */ 182 #define ZEND_ACC_ALLOW_STATIC 0x10000 183 184 /* shadow of parent's private method/property */ 185 #define ZEND_ACC_SHADOW 0x20000 186 187 /* deprecation flag */ 188 #define ZEND_ACC_DEPRECATED 0x40000 189 190 /* class implement interface(s) flag */ 191 #define ZEND_ACC_IMPLEMENT_INTERFACES 0x80000 192 #define ZEND_ACC_IMPLEMENT_TRAITS 0x400000 193 194 /* class constants updated */ 195 #define ZEND_ACC_CONSTANTS_UPDATED 0x100000 196 197 /* user class has methods with static variables */ 198 #define ZEND_HAS_STATIC_IN_METHODS 0x800000 199 200 201 #define ZEND_ACC_CLOSURE 0x100000 202 #define ZEND_ACC_GENERATOR 0x800000 203 204 /* function flag for internal user call handlers __call, __callstatic */ 205 #define ZEND_ACC_CALL_VIA_HANDLER 0x200000 206 207 /* disable inline caching */ 208 #define ZEND_ACC_NEVER_CACHE 0x400000 209 210 #define ZEND_ACC_PASS_REST_BY_REFERENCE 0x1000000 211 #define ZEND_ACC_PASS_REST_PREFER_REF 0x2000000 212 213 #define ZEND_ACC_RETURN_REFERENCE 0x4000000 214 #define ZEND_ACC_DONE_PASS_TWO 0x8000000 215 216 char *zend_visibility_string(zend_uint fn_flags); 217 218 219 typedef struct _zend_property_info { 220 zend_uint flags; 221 const char *name; 222 int name_length; 223 ulong h; 224 int offset; 225 const char *doc_comment; 226 int doc_comment_len; 227 zend_class_entry *ce; 228 } zend_property_info; 229 230 231 typedef struct _zend_arg_info { 232 const char *name; 233 zend_uint name_len; 234 const char *class_name; 235 zend_uint class_name_len; 236 zend_uchar type_hint; 237 zend_bool allow_null; 238 zend_bool pass_by_reference; 239 } zend_arg_info; 240 241 /* the following structure repeats the layout of zend_arg_info, 242 * but its fields have different meaning. It's used as the first element of 243 * arg_info array to define properties of internal functions. 244 */ 245 typedef struct _zend_internal_function_info { 246 const char *_name; 247 zend_uint _name_len; 248 const char *_class_name; 249 zend_uint required_num_args; 250 zend_uchar _type_hint; 251 zend_bool return_reference; 252 zend_bool pass_rest_by_reference; 253 } zend_internal_function_info; 254 255 typedef struct _zend_compiled_variable { 256 const char *name; 257 int name_len; 258 ulong hash_value; 259 } zend_compiled_variable; 260 261 struct _zend_op_array { 262 /* Common elements */ 263 zend_uchar type; 264 const char *function_name; 265 zend_class_entry *scope; 266 zend_uint fn_flags; 267 union _zend_function *prototype; 268 zend_uint num_args; 269 zend_uint required_num_args; 270 zend_arg_info *arg_info; 271 /* END of common elements */ 272 273 zend_uint *refcount; 274 275 zend_op *opcodes; 276 zend_uint last; 277 278 zend_compiled_variable *vars; 279 int last_var; 280 281 zend_uint T; 282 283 zend_uint nested_calls; 284 zend_uint used_stack; 285 286 zend_brk_cont_element *brk_cont_array; 287 int last_brk_cont; 288 289 zend_try_catch_element *try_catch_array; 290 int last_try_catch; 291 zend_bool has_finally_block; 292 293 /* static variables support */ 294 HashTable *static_variables; 295 296 zend_uint this_var; 297 298 const char *filename; 299 zend_uint line_start; 300 zend_uint line_end; 301 const char *doc_comment; 302 zend_uint doc_comment_len; 303 zend_uint early_binding; /* the linked list of delayed declarations */ 304 305 zend_literal *literals; 306 int last_literal; 307 308 void **run_time_cache; 309 int last_cache_slot; 310 311 void *reserved[ZEND_MAX_RESERVED_RESOURCES]; 312 }; 313 314 315 #define ZEND_RETURN_VALUE 0 316 #define ZEND_RETURN_REFERENCE 1 317 318 typedef struct _zend_internal_function { 319 /* Common elements */ 320 zend_uchar type; 321 const char * function_name; 322 zend_class_entry *scope; 323 zend_uint fn_flags; 324 union _zend_function *prototype; 325 zend_uint num_args; 326 zend_uint required_num_args; 327 zend_arg_info *arg_info; 328 /* END of common elements */ 329 330 void (*handler)(INTERNAL_FUNCTION_PARAMETERS); 331 struct _zend_module_entry *module; 332 } zend_internal_function; 333 334 #define ZEND_FN_SCOPE_NAME(function) ((function) && (function)->common.scope ? (function)->common.scope->name : "") 335 336 typedef union _zend_function { 337 zend_uchar type; /* MUST be the first element of this struct! */ 338 339 struct { 340 zend_uchar type; /* never used */ 341 const char *function_name; 342 zend_class_entry *scope; 343 zend_uint fn_flags; 344 union _zend_function *prototype; 345 zend_uint num_args; 346 zend_uint required_num_args; 347 zend_arg_info *arg_info; 348 } common; 349 350 zend_op_array op_array; 351 zend_internal_function internal_function; 352 } zend_function; 353 354 355 typedef struct _zend_function_state { 356 zend_function *function; 357 void **arguments; 358 } zend_function_state; 359 360 361 typedef struct _zend_switch_entry { 362 znode cond; 363 int default_case; 364 int control_var; 365 } zend_switch_entry; 366 367 368 typedef struct _list_llist_element { 369 znode var; 370 zend_llist dimensions; 371 znode value; 372 } list_llist_element; 373 374 union _temp_variable; 375 376 typedef struct _call_slot { 377 zend_function *fbc; 378 zval *object; 379 zend_class_entry *called_scope; 380 zend_bool is_ctor_call; 381 zend_bool is_ctor_result_used; 382 } call_slot; 383 384 struct _zend_execute_data { 385 struct _zend_op *opline; 386 zend_function_state function_state; 387 zend_op_array *op_array; 388 zval *object; 389 HashTable *symbol_table; 390 struct _zend_execute_data *prev_execute_data; 391 zval *old_error_reporting; 392 zend_bool nested; 393 zval **original_return_value; 394 zend_class_entry *current_scope; 395 zend_class_entry *current_called_scope; 396 zval *current_this; 397 struct _zend_op *fast_ret; /* used by FAST_CALL/FAST_RET (finally keyword) */ 398 call_slot *call_slots; 399 call_slot *call; 400 }; 401 402 #define EX(element) execute_data.element 403 404 #define EX_TMP_VAR(ex, n) ((temp_variable*)(((char*)(ex)) + ((int)(n)))) 405 #define EX_TMP_VAR_NUM(ex, n) (EX_TMP_VAR(ex, 0) - (1 + (n))) 406 407 #define EX_CV_NUM(ex, n) (((zval***)(((char*)(ex))+ZEND_MM_ALIGNED_SIZE(sizeof(zend_execute_data))))+(n)) 408 409 410 #define IS_CONST (1<<0) 411 #define IS_TMP_VAR (1<<1) 412 #define IS_VAR (1<<2) 413 #define IS_UNUSED (1<<3) /* Unused variable */ 414 #define IS_CV (1<<4) /* Compiled variable */ 415 416 #define EXT_TYPE_UNUSED (1<<5) 417 418 #include "zend_globals.h" 419 420 BEGIN_EXTERN_C() 421 422 void init_compiler(TSRMLS_D); 423 void shutdown_compiler(TSRMLS_D); 424 void zend_init_compiler_data_structures(TSRMLS_D); 425 void zend_init_compiler_context(TSRMLS_D); 426 427 extern ZEND_API zend_op_array *(*zend_compile_file)(zend_file_handle *file_handle, int type TSRMLS_DC); 428 extern ZEND_API zend_op_array *(*zend_compile_string)(zval *source_string, char *filename TSRMLS_DC); 429 430 ZEND_API int lex_scan(zval *zendlval TSRMLS_DC); 431 void startup_scanner(TSRMLS_D); 432 void shutdown_scanner(TSRMLS_D); 433 434 ZEND_API char *zend_set_compiled_filename(const char *new_compiled_filename TSRMLS_DC); 435 ZEND_API void zend_restore_compiled_filename(char *original_compiled_filename TSRMLS_DC); 436 ZEND_API char *zend_get_compiled_filename(TSRMLS_D); 437 ZEND_API int zend_get_compiled_lineno(TSRMLS_D); 438 ZEND_API size_t zend_get_scanned_file_offset(TSRMLS_D); 439 440 void zend_resolve_non_class_name(znode *element_name, zend_bool check_namespace TSRMLS_DC); 441 void zend_resolve_class_name(znode *class_name, ulong fetch_type, int check_ns_name TSRMLS_DC); 442 ZEND_API const char* zend_get_compiled_variable_name(const zend_op_array *op_array, zend_uint var, int* name_len); 443 444 #ifdef ZTS 445 const char *zend_get_zendtext(TSRMLS_D); 446 int zend_get_zendleng(TSRMLS_D); 447 #endif 448 449 450 /* parser-driven code generators */ 451 void zend_do_binary_op(zend_uchar op, znode *result, const znode *op1, const znode *op2 TSRMLS_DC); 452 void zend_do_unary_op(zend_uchar op, znode *result, const znode *op1 TSRMLS_DC); 453 void zend_do_binary_assign_op(zend_uchar op, znode *result, const znode *op1, const znode *op2 TSRMLS_DC); 454 void zend_do_assign(znode *result, znode *variable, znode *value TSRMLS_DC); 455 void zend_do_assign_ref(znode *result, const znode *lvar, const znode *rvar TSRMLS_DC); 456 void fetch_simple_variable(znode *result, znode *varname, int bp TSRMLS_DC); 457 void fetch_simple_variable_ex(znode *result, znode *varname, int bp, zend_uchar op TSRMLS_DC); 458 void zend_do_indirect_references(znode *result, const znode *num_references, znode *variable TSRMLS_DC); 459 void zend_do_fetch_static_variable(znode *varname, const znode *static_assignment, int fetch_type TSRMLS_DC); 460 void zend_do_fetch_global_variable(znode *varname, const znode *static_assignment, int fetch_type TSRMLS_DC); 461 462 void fetch_array_begin(znode *result, znode *varname, znode *first_dim TSRMLS_DC); 463 void fetch_array_dim(znode *result, const znode *parent, const znode *dim TSRMLS_DC); 464 void fetch_string_offset(znode *result, const znode *parent, const znode *offset TSRMLS_DC); 465 void zend_do_fetch_static_member(znode *result, znode *class_znode TSRMLS_DC); 466 void zend_do_print(znode *result, const znode *arg TSRMLS_DC); 467 void zend_do_echo(const znode *arg TSRMLS_DC); 468 typedef int (*unary_op_type)(zval *, zval * TSRMLS_DC); 469 typedef int (*binary_op_type)(zval *, zval *, zval * TSRMLS_DC); 470 ZEND_API unary_op_type get_unary_op(int opcode); 471 ZEND_API binary_op_type get_binary_op(int opcode); 472 473 void zend_do_while_cond(const znode *expr, znode *close_bracket_token TSRMLS_DC); 474 void zend_do_while_end(const znode *while_token, const znode *close_bracket_token TSRMLS_DC); 475 void zend_do_do_while_begin(TSRMLS_D); 476 void zend_do_do_while_end(const znode *do_token, const znode *expr_open_bracket, const znode *expr TSRMLS_DC); 477 478 479 void zend_do_if_cond(const znode *cond, znode *closing_bracket_token TSRMLS_DC); 480 void zend_do_if_after_statement(const znode *closing_bracket_token, unsigned char initialize TSRMLS_DC); 481 void zend_do_if_end(TSRMLS_D); 482 483 void zend_do_for_cond(const znode *expr, znode *second_semicolon_token TSRMLS_DC); 484 void zend_do_for_before_statement(const znode *cond_start, const znode *second_semicolon_token TSRMLS_DC); 485 void zend_do_for_end(const znode *second_semicolon_token TSRMLS_DC); 486 487 void zend_do_pre_incdec(znode *result, const znode *op1, zend_uchar op TSRMLS_DC); 488 void zend_do_post_incdec(znode *result, const znode *op1, zend_uchar op TSRMLS_DC); 489 490 void zend_do_begin_variable_parse(TSRMLS_D); 491 void zend_do_end_variable_parse(znode *variable, int type, int arg_offset TSRMLS_DC); 492 493 void zend_check_writable_variable(const znode *variable); 494 495 void zend_do_free(znode *op1 TSRMLS_DC); 496 497 void zend_do_add_string(znode *result, const znode *op1, znode *op2 TSRMLS_DC); 498 void zend_do_add_variable(znode *result, const znode *op1, const znode *op2 TSRMLS_DC); 499 500 int zend_do_verify_access_types(const znode *current_access_type, const znode *new_modifier); 501 void zend_do_begin_function_declaration(znode *function_token, znode *function_name, int is_method, int return_reference, znode *fn_flags_znode TSRMLS_DC); 502 void zend_do_end_function_declaration(const znode *function_token TSRMLS_DC); 503 void zend_do_receive_arg(zend_uchar op, znode *varname, const znode *offset, const znode *initialization, znode *class_type, zend_bool pass_by_reference TSRMLS_DC); 504 int zend_do_begin_function_call(znode *function_name, zend_bool check_namespace TSRMLS_DC); 505 void zend_do_begin_method_call(znode *left_bracket TSRMLS_DC); 506 void zend_do_clone(znode *result, const znode *expr TSRMLS_DC); 507 void zend_do_begin_dynamic_function_call(znode *function_name, int prefix_len TSRMLS_DC); 508 void zend_do_fetch_class(znode *result, znode *class_name TSRMLS_DC); 509 void zend_do_build_full_name(znode *result, znode *prefix, znode *name, int is_class_member TSRMLS_DC); 510 int zend_do_begin_class_member_function_call(znode *class_name, znode *method_name TSRMLS_DC); 511 void zend_do_end_function_call(znode *function_name, znode *result, const znode *argument_list, int is_method, int is_dynamic_fcall TSRMLS_DC); 512 void zend_do_return(znode *expr, int do_end_vparse TSRMLS_DC); 513 void zend_do_yield(znode *result, znode *value, const znode *key, zend_bool is_variable TSRMLS_DC); 514 void zend_do_handle_exception(TSRMLS_D); 515 516 void zend_do_begin_lambda_function_declaration(znode *result, znode *function_token, int return_reference, int is_static TSRMLS_DC); 517 void zend_do_fetch_lexical_variable(znode *varname, zend_bool is_ref TSRMLS_DC); 518 519 void zend_do_try(znode *try_token TSRMLS_DC); 520 void zend_do_begin_catch(znode *try_token, znode *catch_class, znode *catch_var, znode *first_catch TSRMLS_DC); 521 void zend_do_bind_catch(znode *try_token, znode *catch_token TSRMLS_DC); 522 void zend_do_end_catch(znode *catch_token TSRMLS_DC); 523 void zend_do_finally(znode *finally_token TSRMLS_DC); 524 void zend_do_end_finally(znode *try_token, znode* catch_token, znode *finally_token TSRMLS_DC); 525 void zend_do_throw(const znode *expr TSRMLS_DC); 526 527 ZEND_API int do_bind_function(const zend_op_array *op_array, zend_op *opline, HashTable *function_table, zend_bool compile_time); 528 ZEND_API zend_class_entry *do_bind_class(const zend_op_array *op_array, const zend_op *opline, HashTable *class_table, zend_bool compile_time TSRMLS_DC); 529 ZEND_API zend_class_entry *do_bind_inherited_class(const zend_op_array *op_array, const zend_op *opline, HashTable *class_table, zend_class_entry *parent_ce, zend_bool compile_time TSRMLS_DC); 530 ZEND_API void zend_do_inherit_interfaces(zend_class_entry *ce, const zend_class_entry *iface TSRMLS_DC); 531 ZEND_API void zend_do_implement_interface(zend_class_entry *ce, zend_class_entry *iface TSRMLS_DC); 532 void zend_do_implements_interface(znode *interface_znode TSRMLS_DC); 533 534 /* Trait related functions */ 535 void zend_do_use_trait(znode *trait_znode TSRMLS_DC); 536 void zend_prepare_reference(znode *result, znode *class_name, znode *method_name TSRMLS_DC); 537 void zend_add_trait_precedence(znode *method_reference, znode *trait_list TSRMLS_DC); 538 void zend_add_trait_alias(znode *method_reference, znode *modifiers, znode *alias TSRMLS_DC); 539 540 ZEND_API void zend_do_implement_trait(zend_class_entry *ce, zend_class_entry *trait TSRMLS_DC); 541 ZEND_API void zend_do_bind_traits(zend_class_entry *ce TSRMLS_DC); 542 543 ZEND_API void zend_do_inheritance(zend_class_entry *ce, zend_class_entry *parent_ce TSRMLS_DC); 544 void zend_do_early_binding(TSRMLS_D); 545 ZEND_API void zend_do_delayed_early_binding(const zend_op_array *op_array TSRMLS_DC); 546 547 void zend_do_pass_param(znode *param, zend_uchar op, int offset TSRMLS_DC); 548 549 550 void zend_do_boolean_or_begin(znode *expr1, znode *op_token TSRMLS_DC); 551 void zend_do_boolean_or_end(znode *result, const znode *expr1, const znode *expr2, znode *op_token TSRMLS_DC); 552 void zend_do_boolean_and_begin(znode *expr1, znode *op_token TSRMLS_DC); 553 void zend_do_boolean_and_end(znode *result, const znode *expr1, const znode *expr2, const znode *op_token TSRMLS_DC); 554 555 void zend_do_brk_cont(zend_uchar op, const znode *expr TSRMLS_DC); 556 557 void zend_do_switch_cond(const znode *cond TSRMLS_DC); 558 void zend_do_switch_end(const znode *case_list TSRMLS_DC); 559 void zend_do_case_before_statement(const znode *case_list, znode *case_token, const znode *case_expr TSRMLS_DC); 560 void zend_do_case_after_statement(znode *result, const znode *case_token TSRMLS_DC); 561 void zend_do_default_before_statement(const znode *case_list, znode *default_token TSRMLS_DC); 562 563 void zend_do_begin_class_declaration(const znode *class_token, znode *class_name, const znode *parent_class_name TSRMLS_DC); 564 void zend_do_end_class_declaration(const znode *class_token, const znode *parent_token TSRMLS_DC); 565 void zend_do_declare_property(const znode *var_name, const znode *value, zend_uint access_type TSRMLS_DC); 566 void zend_do_declare_class_constant(znode *var_name, const znode *value TSRMLS_DC); 567 568 void zend_do_fetch_property(znode *result, znode *object, const znode *property TSRMLS_DC); 569 570 void zend_do_halt_compiler_register(TSRMLS_D); 571 572 void zend_do_push_object(const znode *object TSRMLS_DC); 573 void zend_do_pop_object(znode *object TSRMLS_DC); 574 575 576 void zend_do_begin_new_object(znode *new_token, znode *class_type TSRMLS_DC); 577 void zend_do_end_new_object(znode *result, const znode *new_token, const znode *argument_list TSRMLS_DC); 578 579 void zend_do_fetch_constant(znode *result, znode *constant_container, znode *constant_name, int mode, zend_bool check_namespace TSRMLS_DC); 580 581 void zend_do_shell_exec(znode *result, const znode *cmd TSRMLS_DC); 582 583 void zend_do_init_array(znode *result, const znode *expr, const znode *offset, zend_bool is_ref TSRMLS_DC); 584 void zend_do_add_array_element(znode *result, const znode *expr, const znode *offset, zend_bool is_ref TSRMLS_DC); 585 void zend_do_add_static_array_element(znode *result, znode *offset, const znode *expr); 586 void zend_do_list_init(TSRMLS_D); 587 void zend_do_list_end(znode *result, znode *expr TSRMLS_DC); 588 void zend_do_add_list_element(const znode *element TSRMLS_DC); 589 void zend_do_new_list_begin(TSRMLS_D); 590 void zend_do_new_list_end(TSRMLS_D); 591 592 /* Functions for a null terminated pointer list, used for traits parsing and compilation */ 593 void zend_init_list(void *result, void *item TSRMLS_DC); 594 void zend_add_to_list(void *result, void *item TSRMLS_DC); 595 596 597 void zend_do_cast(znode *result, const znode *expr, int type TSRMLS_DC); 598 void zend_do_include_or_eval(int type, znode *result, const znode *op1 TSRMLS_DC); 599 600 void zend_do_unset(const znode *variable TSRMLS_DC); 601 void zend_do_isset_or_isempty(int type, znode *result, znode *variable TSRMLS_DC); 602 603 void zend_do_instanceof(znode *result, const znode *expr, const znode *class_znode, int type TSRMLS_DC); 604 605 void zend_do_foreach_begin(znode *foreach_token, znode *open_brackets_token, znode *array, znode *as_token, int variable TSRMLS_DC); 606 void zend_do_foreach_cont(znode *foreach_token, const znode *open_brackets_token, const znode *as_token, znode *value, znode *key TSRMLS_DC); 607 void zend_do_foreach_end(const znode *foreach_token, const znode *as_token TSRMLS_DC); 608 609 void zend_do_declare_begin(TSRMLS_D); 610 void zend_do_declare_stmt(znode *var, znode *val TSRMLS_DC); 611 void zend_do_declare_end(const znode *declare_token TSRMLS_DC); 612 613 void zend_do_exit(znode *result, const znode *message TSRMLS_DC); 614 615 void zend_do_begin_silence(znode *strudel_token TSRMLS_DC); 616 void zend_do_end_silence(const znode *strudel_token TSRMLS_DC); 617 618 void zend_do_jmp_set(const znode *value, znode *jmp_token, znode *colon_token TSRMLS_DC); 619 void zend_do_jmp_set_else(znode *result, const znode *false_value, const znode *jmp_token, const znode *colon_token TSRMLS_DC); 620 621 void zend_do_begin_qm_op(const znode *cond, znode *qm_token TSRMLS_DC); 622 void zend_do_qm_true(const znode *true_value, znode *qm_token, znode *colon_token TSRMLS_DC); 623 void zend_do_qm_false(znode *result, const znode *false_value, const znode *qm_token, const znode *colon_token TSRMLS_DC); 624 625 void zend_do_extended_info(TSRMLS_D); 626 void zend_do_extended_fcall_begin(TSRMLS_D); 627 void zend_do_extended_fcall_end(TSRMLS_D); 628 629 void zend_do_ticks(TSRMLS_D); 630 631 void zend_do_abstract_method(const znode *function_name, znode *modifiers, const znode *body TSRMLS_DC); 632 633 void zend_do_declare_constant(znode *name, znode *value TSRMLS_DC); 634 void zend_do_build_namespace_name(znode *result, znode *prefix, znode *name TSRMLS_DC); 635 void zend_do_begin_namespace(const znode *name, zend_bool with_brackets TSRMLS_DC); 636 void zend_do_end_namespace(TSRMLS_D); 637 void zend_verify_namespace(TSRMLS_D); 638 void zend_do_use(znode *name, znode *new_name TSRMLS_DC); 639 void zend_do_end_compilation(TSRMLS_D); 640 641 void zend_do_resolve_class_name(znode *result, znode *class_name, int is_static TSRMLS_DC); 642 643 void zend_do_label(znode *label TSRMLS_DC); 644 void zend_do_goto(const znode *label TSRMLS_DC); 645 void zend_resolve_goto_label(zend_op_array *op_array, zend_op *opline, int pass2 TSRMLS_DC); 646 void zend_release_labels(int temporary TSRMLS_DC); 647 648 ZEND_API void function_add_ref(zend_function *function); 649 650 #define INITIAL_OP_ARRAY_SIZE 64 651 #define INITIAL_INTERACTIVE_OP_ARRAY_SIZE 8192 652 653 654 /* helper functions in zend_language_scanner.l */ 655 ZEND_API zend_op_array *compile_file(zend_file_handle *file_handle, int type TSRMLS_DC); 656 ZEND_API zend_op_array *compile_string(zval *source_string, char *filename TSRMLS_DC); 657 ZEND_API zend_op_array *compile_filename(int type, zval *filename TSRMLS_DC); 658 ZEND_API int zend_execute_scripts(int type TSRMLS_DC, zval **retval, int file_count, ...); 659 ZEND_API int open_file_for_scanning(zend_file_handle *file_handle TSRMLS_DC); 660 ZEND_API void init_op_array(zend_op_array *op_array, zend_uchar type, int initial_ops_size TSRMLS_DC); 661 ZEND_API void destroy_op_array(zend_op_array *op_array TSRMLS_DC); 662 ZEND_API void zend_destroy_file_handle(zend_file_handle *file_handle TSRMLS_DC); 663 ZEND_API int zend_cleanup_class_data(zend_class_entry **pce TSRMLS_DC); 664 ZEND_API int zend_cleanup_user_class_data(zend_class_entry **pce TSRMLS_DC); 665 ZEND_API void zend_cleanup_internal_class_data(zend_class_entry *ce TSRMLS_DC); 666 ZEND_API void zend_cleanup_internal_classes(TSRMLS_D); 667 ZEND_API int zend_cleanup_function_data(zend_function *function TSRMLS_DC); 668 ZEND_API int zend_cleanup_function_data_full(zend_function *function TSRMLS_DC); 669 ZEND_API int clean_non_persistent_function_full(zend_function *function TSRMLS_DC); 670 ZEND_API int clean_non_persistent_class_full(zend_class_entry **ce TSRMLS_DC); 671 672 ZEND_API void destroy_zend_function(zend_function *function TSRMLS_DC); 673 ZEND_API void zend_function_dtor(zend_function *function); 674 ZEND_API void destroy_zend_class(zend_class_entry **pce); 675 void zend_class_add_ref(zend_class_entry **ce); 676 677 ZEND_API void zend_mangle_property_name(char **dest, int *dest_length, const char *src1, int src1_length, const char *src2, int src2_length, int internal); 678 #define zend_unmangle_property_name(mangled_property, mangled_property_len, class_name, prop_name) \ 679 zend_unmangle_property_name_ex(mangled_property, mangled_property_len, class_name, prop_name, NULL) 680 ZEND_API int zend_unmangle_property_name_ex(const char *mangled_property, int mangled_property_len, const char **class_name, const char **prop_name, int *prop_len); 681 682 #define ZEND_FUNCTION_DTOR (void (*)(void *)) zend_function_dtor 683 #define ZEND_CLASS_DTOR (void (*)(void *)) destroy_zend_class 684 685 zend_op *get_next_op(zend_op_array *op_array TSRMLS_DC); 686 void init_op(zend_op *op TSRMLS_DC); 687 int get_next_op_number(zend_op_array *op_array); 688 int print_class(zend_class_entry *class_entry TSRMLS_DC); 689 void print_op_array(zend_op_array *op_array, int optimizations); 690 ZEND_API int pass_two(zend_op_array *op_array TSRMLS_DC); 691 zend_brk_cont_element *get_next_brk_cont_element(zend_op_array *op_array); 692 void zend_do_first_catch(znode *open_parentheses TSRMLS_DC); 693 void zend_initialize_try_catch_element(znode *catch_token TSRMLS_DC); 694 void zend_do_mark_last_catch(const znode *first_catch, const znode *last_additional_catch TSRMLS_DC); 695 ZEND_API zend_bool zend_is_compiling(TSRMLS_D); 696 ZEND_API char *zend_make_compiled_string_description(const char *name TSRMLS_DC); 697 ZEND_API void zend_initialize_class_data(zend_class_entry *ce, zend_bool nullify_handlers TSRMLS_DC); 698 int zend_get_class_fetch_type(const char *class_name, uint class_name_len); 699 700 typedef zend_bool (*zend_auto_global_callback)(const char *name, uint name_len TSRMLS_DC); 701 typedef struct _zend_auto_global { 702 const char *name; 703 uint name_len; 704 zend_auto_global_callback auto_global_callback; 705 zend_bool jit; 706 zend_bool armed; 707 } zend_auto_global; 708 709 ZEND_API int zend_register_auto_global(const char *name, uint name_len, zend_bool jit, zend_auto_global_callback auto_global_callback TSRMLS_DC); 710 ZEND_API void zend_activate_auto_globals(TSRMLS_D); 711 ZEND_API zend_bool zend_is_auto_global(const char *name, uint name_len TSRMLS_DC); 712 ZEND_API zend_bool zend_is_auto_global_quick(const char *name, uint name_len, ulong hashval TSRMLS_DC); 713 ZEND_API size_t zend_dirname(char *path, size_t len); 714 715 int zendlex(znode *zendlval TSRMLS_DC); 716 717 int zend_add_literal(zend_op_array *op_array, const zval *zv TSRMLS_DC); 718 719 /* BEGIN: OPCODES */ 720 721 #include "zend_vm_opcodes.h" 722 723 #define ZEND_OP_DATA 137 724 725 /* END: OPCODES */ 726 727 /* class fetches */ 728 #define ZEND_FETCH_CLASS_DEFAULT 0 729 #define ZEND_FETCH_CLASS_SELF 1 730 #define ZEND_FETCH_CLASS_PARENT 2 731 #define ZEND_FETCH_CLASS_MAIN 3 732 #define ZEND_FETCH_CLASS_GLOBAL 4 733 #define ZEND_FETCH_CLASS_AUTO 5 734 #define ZEND_FETCH_CLASS_INTERFACE 6 735 #define ZEND_FETCH_CLASS_STATIC 7 736 #define ZEND_FETCH_CLASS_TRAIT 14 737 #define ZEND_FETCH_CLASS_MASK 0x0f 738 #define ZEND_FETCH_CLASS_NO_AUTOLOAD 0x80 739 #define ZEND_FETCH_CLASS_SILENT 0x0100 740 741 /* variable parsing type (compile-time) */ 742 #define ZEND_PARSED_MEMBER (1<<0) 743 #define ZEND_PARSED_METHOD_CALL (1<<1) 744 #define ZEND_PARSED_STATIC_MEMBER (1<<2) 745 #define ZEND_PARSED_FUNCTION_CALL (1<<3) 746 #define ZEND_PARSED_VARIABLE (1<<4) 747 #define ZEND_PARSED_REFERENCE_VARIABLE (1<<5) 748 #define ZEND_PARSED_NEW (1<<6) 749 #define ZEND_PARSED_LIST_EXPR (1<<7) 750 751 752 /* unset types */ 753 #define ZEND_UNSET_REG 0 754 755 /* var status for backpatching */ 756 #define BP_VAR_R 0 757 #define BP_VAR_W 1 758 #define BP_VAR_RW 2 759 #define BP_VAR_IS 3 760 #define BP_VAR_NA 4 /* if not applicable */ 761 #define BP_VAR_FUNC_ARG 5 762 #define BP_VAR_UNSET 6 763 764 765 #define ZEND_INTERNAL_FUNCTION 1 766 #define ZEND_USER_FUNCTION 2 767 #define ZEND_OVERLOADED_FUNCTION 3 768 #define ZEND_EVAL_CODE 4 769 #define ZEND_OVERLOADED_FUNCTION_TEMPORARY 5 770 771 #define ZEND_INTERNAL_CLASS 1 772 #define ZEND_USER_CLASS 2 773 774 #define ZEND_EVAL (1<<0) 775 #define ZEND_INCLUDE (1<<1) 776 #define ZEND_INCLUDE_ONCE (1<<2) 777 #define ZEND_REQUIRE (1<<3) 778 #define ZEND_REQUIRE_ONCE (1<<4) 779 780 #define ZEND_CT (1<<0) 781 #define ZEND_RT (1<<1) 782 783 /* global/local fetches */ 784 #define ZEND_FETCH_GLOBAL 0x00000000 785 #define ZEND_FETCH_LOCAL 0x10000000 786 #define ZEND_FETCH_STATIC 0x20000000 787 #define ZEND_FETCH_STATIC_MEMBER 0x30000000 788 #define ZEND_FETCH_GLOBAL_LOCK 0x40000000 789 #define ZEND_FETCH_LEXICAL 0x50000000 790 791 #define ZEND_FETCH_TYPE_MASK 0x70000000 792 793 #define ZEND_FETCH_STANDARD 0x00000000 794 #define ZEND_FETCH_ADD_LOCK 0x08000000 795 #define ZEND_FETCH_MAKE_REF 0x04000000 796 797 #define ZEND_ISSET 0x02000000 798 #define ZEND_ISEMPTY 0x01000000 799 #define ZEND_ISSET_ISEMPTY_MASK (ZEND_ISSET | ZEND_ISEMPTY) 800 #define ZEND_QUICK_SET 0x00800000 801 802 #define ZEND_FETCH_ARG_MASK 0x000fffff 803 804 #define ZEND_FE_FETCH_BYREF 1 805 #define ZEND_FE_FETCH_WITH_KEY 2 806 807 #define ZEND_FE_RESET_VARIABLE (1<<0) 808 #define ZEND_FE_RESET_REFERENCE (1<<1) 809 #define EXT_TYPE_FREE_ON_RETURN (1<<2) 810 811 #define ZEND_MEMBER_FUNC_CALL 1<<0 812 813 #define ZEND_ARG_SEND_BY_REF (1<<0) 814 #define ZEND_ARG_COMPILE_TIME_BOUND (1<<1) 815 #define ZEND_ARG_SEND_FUNCTION (1<<2) 816 #define ZEND_ARG_SEND_SILENT (1<<3) 817 818 #define ZEND_SEND_BY_VAL 0 819 #define ZEND_SEND_BY_REF 1 820 #define ZEND_SEND_PREFER_REF 2 821 822 #define CHECK_ARG_SEND_TYPE(zf, arg_num, m1, m2) \ 823 ((zf) && \ 824 ((((zend_function*)(zf))->common.arg_info && \ 825 arg_num <= ((zend_function*)(zf))->common.num_args) ? \ 826 (((zend_function *)(zf))->common.arg_info[arg_num-1].pass_by_reference & (m1)) : \ 827 (((zend_function *)(zf))->common.fn_flags & (m2)))) 828 829 #define ARG_MUST_BE_SENT_BY_REF(zf, arg_num) \ 830 CHECK_ARG_SEND_TYPE(zf, arg_num, ZEND_SEND_BY_REF, ZEND_ACC_PASS_REST_BY_REFERENCE) 831 832 #define ARG_SHOULD_BE_SENT_BY_REF(zf, arg_num) \ 833 CHECK_ARG_SEND_TYPE(zf, arg_num, ZEND_SEND_BY_REF|ZEND_SEND_PREFER_REF, ZEND_ACC_PASS_REST_BY_REFERENCE|ZEND_ACC_PASS_REST_PREFER_REF) 834 835 #define ARG_MAY_BE_SENT_BY_REF(zf, arg_num) \ 836 CHECK_ARG_SEND_TYPE(zf, arg_num, ZEND_SEND_PREFER_REF, ZEND_ACC_PASS_REST_PREFER_REF) 837 838 #define ZEND_RETURN_VAL 0 839 #define ZEND_RETURN_REF 1 840 841 842 #define ZEND_RETURNS_FUNCTION 1<<0 843 #define ZEND_RETURNS_NEW 1<<1 844 845 #define ZEND_FAST_RET_TO_CATCH 1 846 #define ZEND_FAST_RET_TO_FINALLY 2 847 848 #define ZEND_FAST_CALL_FROM_CATCH 1 849 #define ZEND_FAST_CALL_FROM_FINALLY 2 850 851 END_EXTERN_C() 852 853 #define ZEND_CLONE_FUNC_NAME "__clone" 854 #define ZEND_CONSTRUCTOR_FUNC_NAME "__construct" 855 #define ZEND_DESTRUCTOR_FUNC_NAME "__destruct" 856 #define ZEND_GET_FUNC_NAME "__get" 857 #define ZEND_SET_FUNC_NAME "__set" 858 #define ZEND_UNSET_FUNC_NAME "__unset" 859 #define ZEND_ISSET_FUNC_NAME "__isset" 860 #define ZEND_CALL_FUNC_NAME "__call" 861 #define ZEND_CALLSTATIC_FUNC_NAME "__callstatic" 862 #define ZEND_TOSTRING_FUNC_NAME "__tostring" 863 #define ZEND_AUTOLOAD_FUNC_NAME "__autoload" 864 #define ZEND_INVOKE_FUNC_NAME "__invoke" 865 866 /* The following constants may be combined in CG(compiler_options) 867 * to change the default compiler behavior */ 868 869 /* generate extended debug information */ 870 #define ZEND_COMPILE_EXTENDED_INFO (1<<0) 871 872 /* call op_array handler of extendions */ 873 #define ZEND_COMPILE_HANDLE_OP_ARRAY (1<<1) 874 875 /* generate ZEND_DO_FCALL_BY_NAME for internal functions instead of ZEND_DO_FCALL */ 876 #define ZEND_COMPILE_IGNORE_INTERNAL_FUNCTIONS (1<<2) 877 878 /* don't perform early binding for classes inherited form internal ones; 879 * in namespaces assume that internal class that doesn't exist at compile-time 880 * may apper in run-time */ 881 #define ZEND_COMPILE_IGNORE_INTERNAL_CLASSES (1<<3) 882 883 /* generate ZEND_DECLARE_INHERITED_CLASS_DELAYED opcode to delay early binding */ 884 #define ZEND_COMPILE_DELAYED_BINDING (1<<4) 885 886 /* disable constant substitution at compile-time */ 887 #define ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION (1<<5) 888 889 /* The default value for CG(compiler_options) */ 890 #define ZEND_COMPILE_DEFAULT ZEND_COMPILE_HANDLE_OP_ARRAY 891 892 /* The default value for CG(compiler_options) during eval() */ 893 #define ZEND_COMPILE_DEFAULT_FOR_EVAL 0 894 895 #endif /* ZEND_COMPILE_H */ 896 897 /* 898 * Local variables: 899 * tab-width: 4 900 * c-basic-offset: 4 901 * indent-tabs-mode: t 902 * End: 903 */ 904
