1 /* 2 +----------------------------------------------------------------------+ 3 | Zend Engine | 4 +----------------------------------------------------------------------+ 5 | Copyright (c) 1998-2016 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 #include "zend_ast.h" 27 28 #ifdef HAVE_STDARG_H 29 # include <stdarg.h> 30 #endif 31 32 #include "zend_llist.h" 33 34 #define DEBUG_ZEND 0 35 36 #define FREE_PNODE(znode) zval_dtor(&znode->u.constant); 37 38 #define SET_UNUSED(op) op ## _type = IS_UNUSED 39 40 #define INC_BPC(op_array) if (op_array->fn_flags & ZEND_ACC_INTERACTIVE) { (CG(context).backpatch_count++); } 41 #define DEC_BPC(op_array) if (op_array->fn_flags & ZEND_ACC_INTERACTIVE) { (CG(context).backpatch_count--); } 42 #define HANDLE_INTERACTIVE() if (CG(active_op_array)->fn_flags & ZEND_ACC_INTERACTIVE) { execute_new_code(TSRMLS_C); } 43 #define DO_TICKS() if (Z_LVAL(CG(declarables).ticks)) { zend_do_ticks(TSRMLS_C); } 44 45 #define RESET_DOC_COMMENT() \ 46 { \ 47 if (CG(doc_comment)) { \ 48 efree(CG(doc_comment)); \ 49 CG(doc_comment) = NULL; \ 50 } \ 51 CG(doc_comment_len) = 0; \ 52 } 53 54 typedef struct _zend_op_array zend_op_array; 55 typedef struct _zend_op zend_op; 56 57 typedef struct _zend_compiler_context { 58 zend_uint opcodes_size; 59 int vars_size; 60 int literals_size; 61 int current_brk_cont; 62 int backpatch_count; 63 int nested_calls; 64 int used_stack; 65 int in_finally; 66 HashTable *labels; 67 } zend_compiler_context; 68 69 typedef struct _zend_literal { 70 zval constant; 71 zend_ulong hash_value; 72 zend_uint cache_slot; 73 } zend_literal; 74 75 #define Z_HASH_P(zv) \ 76 (((zend_literal*)(zv))->hash_value) 77 78 typedef union _znode_op { 79 zend_uint constant; 80 zend_uint var; 81 zend_uint num; 82 zend_ulong hash; 83 zend_uint opline_num; /* Needs to be signed */ 84 zend_op *jmp_addr; 85 zval *zv; 86 zend_literal *literal; 87 void *ptr; /* Used for passing pointers from the compile to execution phase, currently used for traits */ 88 } znode_op; 89 90 typedef struct _znode { /* used only during compilation */ 91 int op_type; 92 union { 93 znode_op op; 94 zval constant; /* replaced by literal/zv */ 95 zend_op_array *op_array; 96 zend_ast *ast; 97 } u; 98 zend_uint EA; /* extended attributes */ 99 } znode; 100 101 typedef struct _zend_execute_data zend_execute_data; 102 103 #define ZEND_OPCODE_HANDLER_ARGS zend_execute_data *execute_data TSRMLS_DC 104 #define ZEND_OPCODE_HANDLER_ARGS_PASSTHRU execute_data TSRMLS_CC 105 106 typedef int (*user_opcode_handler_t) (ZEND_OPCODE_HANDLER_ARGS); 107 typedef int (ZEND_FASTCALL *opcode_handler_t) (ZEND_OPCODE_HANDLER_ARGS); 108 109 extern ZEND_API opcode_handler_t *zend_opcode_handlers; 110 111 struct _zend_op { 112 opcode_handler_t handler; 113 znode_op op1; 114 znode_op op2; 115 znode_op result; 116 ulong extended_value; 117 uint lineno; 118 zend_uchar opcode; 119 zend_uchar op1_type; 120 zend_uchar op2_type; 121 zend_uchar result_type; 122 }; 123 124 125 typedef struct _zend_brk_cont_element { 126 int start; 127 int cont; 128 int brk; 129 int parent; 130 } zend_brk_cont_element; 131 132 typedef struct _zend_label { 133 int brk_cont; 134 zend_uint opline_num; 135 } zend_label; 136 137 typedef struct _zend_try_catch_element { 138 zend_uint try_op; 139 zend_uint catch_op; /* ketchup! */ 140 zend_uint finally_op; 141 zend_uint finally_end; 142 } zend_try_catch_element; 143 144 #if SIZEOF_LONG == 8 145 #define THIS_HASHVAL 210728972157UL 146 #else 147 #define THIS_HASHVAL 275574653UL 148 #endif 149 150 /* method flags (types) */ 151 #define ZEND_ACC_STATIC 0x01 152 #define ZEND_ACC_ABSTRACT 0x02 153 #define ZEND_ACC_FINAL 0x04 154 #define ZEND_ACC_IMPLEMENTED_ABSTRACT 0x08 155 156 /* class flags (types) */ 157 /* 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). */ 158 /* ZEND_ACC_EXPLICIT_ABSTRACT_CLASS denotes that a class was explicitly defined as abstract by using the keyword. */ 159 #define ZEND_ACC_IMPLICIT_ABSTRACT_CLASS 0x10 160 #define ZEND_ACC_EXPLICIT_ABSTRACT_CLASS 0x20 161 #define ZEND_ACC_FINAL_CLASS 0x40 162 #define ZEND_ACC_INTERFACE 0x80 163 #define ZEND_ACC_TRAIT 0x120 164 165 /* op_array flags */ 166 #define ZEND_ACC_INTERACTIVE 0x10 167 168 /* method flags (visibility) */ 169 /* The order of those must be kept - public < protected < private */ 170 #define ZEND_ACC_PUBLIC 0x100 171 #define ZEND_ACC_PROTECTED 0x200 172 #define ZEND_ACC_PRIVATE 0x400 173 #define ZEND_ACC_PPP_MASK (ZEND_ACC_PUBLIC | ZEND_ACC_PROTECTED | ZEND_ACC_PRIVATE) 174 175 #define ZEND_ACC_CHANGED 0x800 176 #define ZEND_ACC_IMPLICIT_PUBLIC 0x1000 177 178 /* method flags (special method detection) */ 179 #define ZEND_ACC_CTOR 0x2000 180 #define ZEND_ACC_DTOR 0x4000 181 #define ZEND_ACC_CLONE 0x8000 182 183 /* method flag (bc only), any method that has this flag can be used statically and non statically. */ 184 #define ZEND_ACC_ALLOW_STATIC 0x10000 185 186 /* shadow of parent's private method/property */ 187 #define ZEND_ACC_SHADOW 0x20000 188 189 /* deprecation flag */ 190 #define ZEND_ACC_DEPRECATED 0x40000 191 192 /* class implement interface(s) flag */ 193 #define ZEND_ACC_IMPLEMENT_INTERFACES 0x80000 194 #define ZEND_ACC_IMPLEMENT_TRAITS 0x400000 195 196 /* class constants updated */ 197 #define ZEND_ACC_CONSTANTS_UPDATED 0x100000 198 199 /* user class has methods with static variables */ 200 #define ZEND_HAS_STATIC_IN_METHODS 0x800000 201 202 203 #define ZEND_ACC_CLOSURE 0x100000 204 #define ZEND_ACC_GENERATOR 0x800000 205 206 /* function flag for internal user call handlers __call, __callstatic */ 207 #define ZEND_ACC_CALL_VIA_HANDLER 0x200000 208 209 /* disable inline caching */ 210 #define ZEND_ACC_NEVER_CACHE 0x400000 211 212 #define ZEND_ACC_VARIADIC 0x1000000 213 214 #define ZEND_ACC_RETURN_REFERENCE 0x4000000 215 #define ZEND_ACC_DONE_PASS_TWO 0x8000000 216 217 /* function has arguments with type hinting */ 218 #define ZEND_ACC_HAS_TYPE_HINTS 0x10000000 219 220 char *zend_visibility_string(zend_uint fn_flags); 221 222 223 typedef struct _zend_property_info { 224 zend_uint flags; 225 const char *name; 226 int name_length; 227 ulong h; 228 int offset; 229 const char *doc_comment; 230 int doc_comment_len; 231 zend_class_entry *ce; 232 } zend_property_info; 233 234 235 typedef struct _zend_arg_info { 236 const char *name; 237 zend_uint name_len; 238 const char *class_name; 239 zend_uint class_name_len; 240 zend_uchar type_hint; 241 zend_uchar pass_by_reference; 242 zend_bool allow_null; 243 zend_bool is_variadic; 244 } zend_arg_info; 245 246 /* the following structure repeats the layout of zend_arg_info, 247 * but its fields have different meaning. It's used as the first element of 248 * arg_info array to define properties of internal functions. 249 */ 250 typedef struct _zend_internal_function_info { 251 const char *_name; 252 zend_uint _name_len; 253 const char *_class_name; 254 zend_uint required_num_args; 255 zend_uchar _type_hint; 256 zend_bool return_reference; 257 zend_bool _allow_null; 258 zend_bool _is_variadic; 259 } zend_internal_function_info; 260 261 typedef struct _zend_compiled_variable { 262 const char *name; 263 int name_len; 264 ulong hash_value; 265 } zend_compiled_variable; 266 267 struct _zend_op_array { 268 /* Common elements */ 269 zend_uchar type; 270 const char *function_name; 271 zend_class_entry *scope; 272 zend_uint fn_flags; 273 union _zend_function *prototype; 274 zend_uint num_args; 275 zend_uint required_num_args; 276 zend_arg_info *arg_info; 277 /* END of common elements */ 278 279 zend_uint *refcount; 280 281 zend_op *opcodes; 282 zend_uint last; 283 284 zend_compiled_variable *vars; 285 int last_var; 286 287 zend_uint T; 288 289 zend_uint nested_calls; 290 zend_uint used_stack; 291 292 zend_brk_cont_element *brk_cont_array; 293 int last_brk_cont; 294 295 zend_try_catch_element *try_catch_array; 296 int last_try_catch; 297 zend_bool has_finally_block; 298 299 /* static variables support */ 300 HashTable *static_variables; 301 302 zend_uint this_var; 303 304 const char *filename; 305 zend_uint line_start; 306 zend_uint line_end; 307 const char *doc_comment; 308 zend_uint doc_comment_len; 309 zend_uint early_binding; /* the linked list of delayed declarations */ 310 311 zend_literal *literals; 312 int last_literal; 313 314 void **run_time_cache; 315 int last_cache_slot; 316 317 void *reserved[ZEND_MAX_RESERVED_RESOURCES]; 318 }; 319 320 321 #define ZEND_RETURN_VALUE 0 322 #define ZEND_RETURN_REFERENCE 1 323 324 typedef struct _zend_internal_function { 325 /* Common elements */ 326 zend_uchar type; 327 const char * function_name; 328 zend_class_entry *scope; 329 zend_uint fn_flags; 330 union _zend_function *prototype; 331 zend_uint num_args; 332 zend_uint required_num_args; 333 zend_arg_info *arg_info; 334 /* END of common elements */ 335 336 void (*handler)(INTERNAL_FUNCTION_PARAMETERS); 337 struct _zend_module_entry *module; 338 } zend_internal_function; 339 340 #define ZEND_FN_SCOPE_NAME(function) ((function) && (function)->common.scope ? (function)->common.scope->name : "") 341 342 typedef union _zend_function { 343 zend_uchar type; /* MUST be the first element of this struct! */ 344 345 struct { 346 zend_uchar type; /* never used */ 347 const char *function_name; 348 zend_class_entry *scope; 349 zend_uint fn_flags; 350 union _zend_function *prototype; 351 zend_uint num_args; 352 zend_uint required_num_args; 353 zend_arg_info *arg_info; 354 } common; 355 356 zend_op_array op_array; 357 zend_internal_function internal_function; 358 } zend_function; 359 360 361 typedef struct _zend_function_state { 362 zend_function *function; 363 void **arguments; 364 } zend_function_state; 365 366 typedef struct _zend_function_call_entry { 367 zend_function *fbc; 368 zend_uint arg_num; 369 zend_bool uses_argument_unpacking; 370 } zend_function_call_entry; 371 372 typedef struct _zend_switch_entry { 373 znode cond; 374 int default_case; 375 int control_var; 376 } zend_switch_entry; 377 378 379 typedef struct _list_llist_element { 380 znode var; 381 zend_llist dimensions; 382 znode value; 383 } list_llist_element; 384 385 union _temp_variable; 386 387 typedef struct _call_slot { 388 zend_function *fbc; 389 zval *object; 390 zend_class_entry *called_scope; 391 zend_uint num_additional_args; 392 zend_bool is_ctor_call; 393 zend_bool is_ctor_result_used; 394 } call_slot; 395 396 struct _zend_execute_data { 397 struct _zend_op *opline; 398 zend_function_state function_state; 399 zend_op_array *op_array; 400 zval *object; 401 HashTable *symbol_table; 402 struct _zend_execute_data *prev_execute_data; 403 zval *old_error_reporting; 404 zend_bool nested; 405 zval **original_return_value; 406 zend_class_entry *current_scope; 407 zend_class_entry *current_called_scope; 408 zval *current_this; 409 struct _zend_op *fast_ret; /* used by FAST_CALL/FAST_RET (finally keyword) */ 410 zval *delayed_exception; 411 call_slot *call_slots; 412 call_slot *call; 413 }; 414 415 #define EX(element) execute_data.element 416 417 #define EX_TMP_VAR(ex, n) ((temp_variable*)(((char*)(ex)) + ((int)(n)))) 418 #define EX_TMP_VAR_NUM(ex, n) (EX_TMP_VAR(ex, 0) - (1 + (n))) 419 420 #define EX_CV_NUM(ex, n) (((zval***)(((char*)(ex))+ZEND_MM_ALIGNED_SIZE(sizeof(zend_execute_data))))+(n)) 421 422 423 #define IS_CONST (1<<0) 424 #define IS_TMP_VAR (1<<1) 425 #define IS_VAR (1<<2) 426 #define IS_UNUSED (1<<3) /* Unused variable */ 427 #define IS_CV (1<<4) /* Compiled variable */ 428 429 #define EXT_TYPE_UNUSED (1<<5) 430 431 #include "zend_globals.h" 432 433 BEGIN_EXTERN_C() 434 435 void init_compiler(TSRMLS_D); 436 void shutdown_compiler(TSRMLS_D); 437 void zend_init_compiler_data_structures(TSRMLS_D); 438 void zend_init_compiler_context(TSRMLS_D); 439 440 extern ZEND_API zend_op_array *(*zend_compile_file)(zend_file_handle *file_handle, int type TSRMLS_DC); 441 extern ZEND_API zend_op_array *(*zend_compile_string)(zval *source_string, char *filename TSRMLS_DC); 442 443 ZEND_API int lex_scan(zval *zendlval TSRMLS_DC); 444 void startup_scanner(TSRMLS_D); 445 void shutdown_scanner(TSRMLS_D); 446 447 ZEND_API char *zend_set_compiled_filename(const char *new_compiled_filename TSRMLS_DC); 448 ZEND_API void zend_restore_compiled_filename(char *original_compiled_filename TSRMLS_DC); 449 ZEND_API char *zend_get_compiled_filename(TSRMLS_D); 450 ZEND_API int zend_get_compiled_lineno(TSRMLS_D); 451 ZEND_API size_t zend_get_scanned_file_offset(TSRMLS_D); 452 453 void zend_resolve_non_class_name(znode *element_name, zend_bool *check_namespace, zend_bool case_sensitive, HashTable *current_import_sub TSRMLS_DC); 454 void zend_resolve_function_name(znode *element_name, zend_bool *check_namespace TSRMLS_DC); 455 void zend_resolve_const_name(znode *element_name, zend_bool *check_namespace TSRMLS_DC); 456 void zend_resolve_class_name(znode *class_name TSRMLS_DC); 457 ZEND_API const char* zend_get_compiled_variable_name(const zend_op_array *op_array, zend_uint var, int* name_len); 458 459 #ifdef ZTS 460 const char *zend_get_zendtext(TSRMLS_D); 461 int zend_get_zendleng(TSRMLS_D); 462 #endif 463 464 465 /* parser-driven code generators */ 466 void zend_do_binary_op(zend_uchar op, znode *result, const znode *op1, const znode *op2 TSRMLS_DC); 467 void zend_do_unary_op(zend_uchar op, znode *result, const znode *op1 TSRMLS_DC); 468 void zend_do_binary_assign_op(zend_uchar op, znode *result, const znode *op1, const znode *op2 TSRMLS_DC); 469 void zend_do_assign(znode *result, znode *variable, znode *value TSRMLS_DC); 470 void zend_do_assign_ref(znode *result, const znode *lvar, const znode *rvar TSRMLS_DC); 471 void fetch_simple_variable(znode *result, znode *varname, int bp TSRMLS_DC); 472 void fetch_simple_variable_ex(znode *result, znode *varname, int bp, zend_uchar op TSRMLS_DC); 473 void zend_do_indirect_references(znode *result, const znode *num_references, znode *variable TSRMLS_DC); 474 void zend_do_fetch_static_variable(znode *varname, const znode *static_assignment, int fetch_type TSRMLS_DC); 475 void zend_do_fetch_global_variable(znode *varname, const znode *static_assignment, int fetch_type TSRMLS_DC); 476 477 void fetch_array_begin(znode *result, znode *varname, znode *first_dim TSRMLS_DC); 478 void fetch_array_dim(znode *result, const znode *parent, const znode *dim TSRMLS_DC); 479 void fetch_string_offset(znode *result, const znode *parent, const znode *offset TSRMLS_DC); 480 void zend_do_fetch_static_member(znode *result, znode *class_znode TSRMLS_DC); 481 void zend_do_print(znode *result, const znode *arg TSRMLS_DC); 482 void zend_do_echo(const znode *arg TSRMLS_DC); 483 typedef int (*unary_op_type)(zval *, zval * TSRMLS_DC); 484 typedef int (*binary_op_type)(zval *, zval *, zval * TSRMLS_DC); 485 ZEND_API unary_op_type get_unary_op(int opcode); 486 ZEND_API binary_op_type get_binary_op(int opcode); 487 488 void zend_do_while_cond(const znode *expr, znode *close_bracket_token TSRMLS_DC); 489 void zend_do_while_end(const znode *while_token, const znode *close_bracket_token TSRMLS_DC); 490 void zend_do_do_while_begin(TSRMLS_D); 491 void zend_do_do_while_end(const znode *do_token, const znode *expr_open_bracket, const znode *expr TSRMLS_DC); 492 493 494 void zend_do_if_cond(const znode *cond, znode *closing_bracket_token TSRMLS_DC); 495 void zend_do_if_after_statement(const znode *closing_bracket_token, unsigned char initialize TSRMLS_DC); 496 void zend_do_if_end(TSRMLS_D); 497 498 void zend_do_for_cond(const znode *expr, znode *second_semicolon_token TSRMLS_DC); 499 void zend_do_for_before_statement(const znode *cond_start, const znode *second_semicolon_token TSRMLS_DC); 500 void zend_do_for_end(const znode *second_semicolon_token TSRMLS_DC); 501 502 void zend_do_pre_incdec(znode *result, const znode *op1, zend_uchar op TSRMLS_DC); 503 void zend_do_post_incdec(znode *result, const znode *op1, zend_uchar op TSRMLS_DC); 504 505 void zend_do_begin_variable_parse(TSRMLS_D); 506 void zend_do_end_variable_parse(znode *variable, int type, int arg_offset TSRMLS_DC); 507 508 void zend_check_writable_variable(const znode *variable); 509 510 void zend_do_free(znode *op1 TSRMLS_DC); 511 512 void zend_do_add_string(znode *result, const znode *op1, znode *op2 TSRMLS_DC); 513 void zend_do_add_variable(znode *result, const znode *op1, const znode *op2 TSRMLS_DC); 514 515 int zend_do_verify_access_types(const znode *current_access_type, const znode *new_modifier); 516 void zend_do_begin_function_declaration(znode *function_token, znode *function_name, int is_method, int return_reference, znode *fn_flags_znode TSRMLS_DC); 517 void zend_do_end_function_declaration(const znode *function_token TSRMLS_DC); 518 void zend_do_receive_param(zend_uchar op, znode *varname, const znode *initialization, znode *class_type, zend_bool pass_by_reference, zend_bool is_variadic TSRMLS_DC); 519 int zend_do_begin_function_call(znode *function_name, zend_bool check_namespace TSRMLS_DC); 520 void zend_do_begin_method_call(znode *left_bracket TSRMLS_DC); 521 void zend_do_clone(znode *result, const znode *expr TSRMLS_DC); 522 void zend_do_begin_dynamic_function_call(znode *function_name, int prefix_len TSRMLS_DC); 523 void zend_do_fetch_class(znode *result, znode *class_name TSRMLS_DC); 524 void zend_do_build_full_name(znode *result, znode *prefix, znode *name, int is_class_member TSRMLS_DC); 525 int zend_do_begin_class_member_function_call(znode *class_name, znode *method_name TSRMLS_DC); 526 void zend_do_end_function_call(znode *function_name, znode *result, int is_method, int is_dynamic_fcall TSRMLS_DC); 527 void zend_do_return(znode *expr, int do_end_vparse TSRMLS_DC); 528 void zend_do_yield(znode *result, znode *value, const znode *key, zend_bool is_variable TSRMLS_DC); 529 void zend_do_handle_exception(TSRMLS_D); 530 531 void zend_do_begin_lambda_function_declaration(znode *result, znode *function_token, int return_reference, int is_static TSRMLS_DC); 532 void zend_do_fetch_lexical_variable(znode *varname, zend_bool is_ref TSRMLS_DC); 533 534 void zend_do_try(znode *try_token TSRMLS_DC); 535 void zend_do_begin_catch(znode *try_token, znode *catch_class, znode *catch_var, znode *first_catch TSRMLS_DC); 536 void zend_do_bind_catch(znode *try_token, znode *catch_token TSRMLS_DC); 537 void zend_do_end_catch(znode *catch_token TSRMLS_DC); 538 void zend_do_finally(znode *finally_token TSRMLS_DC); 539 void zend_do_end_finally(znode *try_token, znode* catch_token, znode *finally_token TSRMLS_DC); 540 void zend_do_throw(const znode *expr TSRMLS_DC); 541 542 ZEND_API int do_bind_function(const zend_op_array *op_array, zend_op *opline, HashTable *function_table, zend_bool compile_time); 543 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); 544 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); 545 ZEND_API void zend_do_inherit_interfaces(zend_class_entry *ce, const zend_class_entry *iface TSRMLS_DC); 546 ZEND_API void zend_do_implement_interface(zend_class_entry *ce, zend_class_entry *iface TSRMLS_DC); 547 void zend_do_implements_interface(znode *interface_znode TSRMLS_DC); 548 549 /* Trait related functions */ 550 void zend_do_use_trait(znode *trait_znode TSRMLS_DC); 551 void zend_prepare_reference(znode *result, znode *class_name, znode *method_name TSRMLS_DC); 552 void zend_add_trait_precedence(znode *method_reference, znode *trait_list TSRMLS_DC); 553 void zend_add_trait_alias(znode *method_reference, znode *modifiers, znode *alias TSRMLS_DC); 554 555 ZEND_API void zend_do_implement_trait(zend_class_entry *ce, zend_class_entry *trait TSRMLS_DC); 556 ZEND_API void zend_do_bind_traits(zend_class_entry *ce TSRMLS_DC); 557 558 ZEND_API void zend_do_inheritance(zend_class_entry *ce, zend_class_entry *parent_ce TSRMLS_DC); 559 void zend_do_early_binding(TSRMLS_D); 560 ZEND_API void zend_do_delayed_early_binding(const zend_op_array *op_array TSRMLS_DC); 561 562 void zend_do_pass_param(znode *param, zend_uchar op TSRMLS_DC); 563 void zend_do_unpack_params(znode *params TSRMLS_DC); 564 565 566 void zend_do_boolean_or_begin(znode *expr1, znode *op_token TSRMLS_DC); 567 void zend_do_boolean_or_end(znode *result, const znode *expr1, const znode *expr2, znode *op_token TSRMLS_DC); 568 void zend_do_boolean_and_begin(znode *expr1, znode *op_token TSRMLS_DC); 569 void zend_do_boolean_and_end(znode *result, const znode *expr1, const znode *expr2, const znode *op_token TSRMLS_DC); 570 571 void zend_do_brk_cont(zend_uchar op, const znode *expr TSRMLS_DC); 572 573 void zend_do_switch_cond(const znode *cond TSRMLS_DC); 574 void zend_do_switch_end(const znode *case_list TSRMLS_DC); 575 void zend_do_case_before_statement(const znode *case_list, znode *case_token, const znode *case_expr TSRMLS_DC); 576 void zend_do_case_after_statement(znode *result, const znode *case_token TSRMLS_DC); 577 void zend_do_default_before_statement(const znode *case_list, znode *default_token TSRMLS_DC); 578 579 void zend_do_begin_class_declaration(const znode *class_token, znode *class_name, const znode *parent_class_name TSRMLS_DC); 580 void zend_do_end_class_declaration(const znode *class_token, const znode *parent_token TSRMLS_DC); 581 void zend_do_declare_property(const znode *var_name, const znode *value, zend_uint access_type TSRMLS_DC); 582 void zend_do_declare_class_constant(znode *var_name, const znode *value TSRMLS_DC); 583 584 void zend_do_fetch_property(znode *result, znode *object, const znode *property TSRMLS_DC); 585 586 void zend_do_halt_compiler_register(TSRMLS_D); 587 588 void zend_do_push_object(const znode *object TSRMLS_DC); 589 void zend_do_pop_object(znode *object TSRMLS_DC); 590 591 592 void zend_do_begin_new_object(znode *new_token, znode *class_type TSRMLS_DC); 593 void zend_do_end_new_object(znode *result, const znode *new_token TSRMLS_DC); 594 595 void zend_do_fetch_constant(znode *result, znode *constant_container, znode *constant_name, int mode, zend_bool check_namespace TSRMLS_DC); 596 597 void zend_do_shell_exec(znode *result, const znode *cmd TSRMLS_DC); 598 599 void zend_do_init_array(znode *result, const znode *expr, const znode *offset, zend_bool is_ref TSRMLS_DC); 600 void zend_do_add_array_element(znode *result, const znode *expr, const znode *offset, zend_bool is_ref TSRMLS_DC); 601 void zend_do_add_static_array_element(zval *result, zval *offset, zval *expr); 602 void zend_do_list_init(TSRMLS_D); 603 void zend_do_list_end(znode *result, znode *expr TSRMLS_DC); 604 void zend_do_add_list_element(const znode *element TSRMLS_DC); 605 void zend_do_new_list_begin(TSRMLS_D); 606 void zend_do_new_list_end(TSRMLS_D); 607 608 /* Functions for a null terminated pointer list, used for traits parsing and compilation */ 609 void zend_init_list(void *result, void *item TSRMLS_DC); 610 void zend_add_to_list(void *result, void *item TSRMLS_DC); 611 612 613 void zend_do_cast(znode *result, const znode *expr, int type TSRMLS_DC); 614 void zend_do_include_or_eval(int type, znode *result, const znode *op1 TSRMLS_DC); 615 616 void zend_do_unset(const znode *variable TSRMLS_DC); 617 void zend_do_isset_or_isempty(int type, znode *result, znode *variable TSRMLS_DC); 618 619 void zend_do_instanceof(znode *result, const znode *expr, const znode *class_znode, int type TSRMLS_DC); 620 621 void zend_do_foreach_begin(znode *foreach_token, znode *open_brackets_token, znode *array, znode *as_token, int variable TSRMLS_DC); 622 void zend_do_foreach_cont(znode *foreach_token, const znode *open_brackets_token, const znode *as_token, znode *value, znode *key TSRMLS_DC); 623 void zend_do_foreach_end(const znode *foreach_token, const znode *as_token TSRMLS_DC); 624 625 void zend_do_declare_begin(TSRMLS_D); 626 void zend_do_declare_stmt(znode *var, znode *val TSRMLS_DC); 627 void zend_do_declare_end(const znode *declare_token TSRMLS_DC); 628 629 void zend_do_exit(znode *result, const znode *message TSRMLS_DC); 630 631 void zend_do_begin_silence(znode *strudel_token TSRMLS_DC); 632 void zend_do_end_silence(const znode *strudel_token TSRMLS_DC); 633 634 void zend_do_jmp_set(const znode *value, znode *jmp_token, znode *colon_token TSRMLS_DC); 635 void zend_do_jmp_set_else(znode *result, const znode *false_value, const znode *jmp_token, const znode *colon_token TSRMLS_DC); 636 637 void zend_do_begin_qm_op(const znode *cond, znode *qm_token TSRMLS_DC); 638 void zend_do_qm_true(const znode *true_value, znode *qm_token, znode *colon_token TSRMLS_DC); 639 void zend_do_qm_false(znode *result, const znode *false_value, const znode *qm_token, const znode *colon_token TSRMLS_DC); 640 641 void zend_do_extended_info(TSRMLS_D); 642 void zend_do_extended_fcall_begin(TSRMLS_D); 643 void zend_do_extended_fcall_end(TSRMLS_D); 644 645 void zend_do_ticks(TSRMLS_D); 646 647 void zend_do_abstract_method(const znode *function_name, znode *modifiers, const znode *body TSRMLS_DC); 648 649 void zend_do_declare_constant(znode *name, znode *value TSRMLS_DC); 650 void zend_do_build_namespace_name(znode *result, znode *prefix, znode *name TSRMLS_DC); 651 void zend_do_begin_namespace(const znode *name, zend_bool with_brackets TSRMLS_DC); 652 void zend_do_end_namespace(TSRMLS_D); 653 void zend_verify_namespace(TSRMLS_D); 654 void zend_do_use(znode *name, znode *new_name TSRMLS_DC); 655 void zend_do_use_non_class(znode *ns_name, znode *new_name, int is_function, zend_bool case_sensitive, HashTable *current_import_sub, HashTable *lookup_table TSRMLS_DC); 656 void zend_do_use_function(znode *name, znode *new_name TSRMLS_DC); 657 void zend_do_use_const(znode *name, znode *new_name TSRMLS_DC); 658 void zend_do_end_compilation(TSRMLS_D); 659 void zend_do_constant_expression(znode *result, zend_ast *ast TSRMLS_DC); 660 661 void zend_do_resolve_class_name(znode *result, znode *class_name, int is_static TSRMLS_DC); 662 663 void zend_do_label(znode *label TSRMLS_DC); 664 void zend_do_goto(const znode *label TSRMLS_DC); 665 void zend_resolve_goto_label(zend_op_array *op_array, zend_op *opline, int pass2 TSRMLS_DC); 666 void zend_release_labels(int temporary TSRMLS_DC); 667 668 ZEND_API void function_add_ref(zend_function *function); 669 670 #define INITIAL_OP_ARRAY_SIZE 64 671 #define INITIAL_INTERACTIVE_OP_ARRAY_SIZE 8192 672 673 674 /* helper functions in zend_language_scanner.l */ 675 ZEND_API zend_op_array *compile_file(zend_file_handle *file_handle, int type TSRMLS_DC); 676 ZEND_API zend_op_array *compile_string(zval *source_string, char *filename TSRMLS_DC); 677 ZEND_API zend_op_array *compile_filename(int type, zval *filename TSRMLS_DC); 678 ZEND_API int zend_execute_scripts(int type TSRMLS_DC, zval **retval, int file_count, ...); 679 ZEND_API int open_file_for_scanning(zend_file_handle *file_handle TSRMLS_DC); 680 ZEND_API void init_op_array(zend_op_array *op_array, zend_uchar type, int initial_ops_size TSRMLS_DC); 681 ZEND_API void destroy_op_array(zend_op_array *op_array TSRMLS_DC); 682 ZEND_API void zend_destroy_file_handle(zend_file_handle *file_handle TSRMLS_DC); 683 ZEND_API int zend_cleanup_class_data(zend_class_entry **pce TSRMLS_DC); 684 ZEND_API int zend_cleanup_user_class_data(zend_class_entry **pce TSRMLS_DC); 685 ZEND_API void zend_cleanup_internal_class_data(zend_class_entry *ce TSRMLS_DC); 686 ZEND_API void zend_cleanup_internal_classes(TSRMLS_D); 687 ZEND_API int zend_cleanup_function_data(zend_function *function TSRMLS_DC); 688 ZEND_API int zend_cleanup_function_data_full(zend_function *function TSRMLS_DC); 689 ZEND_API int clean_non_persistent_function_full(zend_function *function TSRMLS_DC); 690 ZEND_API int clean_non_persistent_class_full(zend_class_entry **ce TSRMLS_DC); 691 692 ZEND_API void destroy_zend_function(zend_function *function TSRMLS_DC); 693 ZEND_API void zend_function_dtor(zend_function *function); 694 ZEND_API void destroy_zend_class(zend_class_entry **pce); 695 void zend_class_add_ref(zend_class_entry **ce); 696 697 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); 698 #define zend_unmangle_property_name(mangled_property, mangled_property_len, class_name, prop_name) \ 699 zend_unmangle_property_name_ex(mangled_property, mangled_property_len, class_name, prop_name, NULL) 700 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); 701 702 #define ZEND_FUNCTION_DTOR (void (*)(void *)) zend_function_dtor 703 #define ZEND_CLASS_DTOR (void (*)(void *)) destroy_zend_class 704 705 zend_op *get_next_op(zend_op_array *op_array TSRMLS_DC); 706 void init_op(zend_op *op TSRMLS_DC); 707 int get_next_op_number(zend_op_array *op_array); 708 int print_class(zend_class_entry *class_entry TSRMLS_DC); 709 void print_op_array(zend_op_array *op_array, int optimizations); 710 ZEND_API int pass_two(zend_op_array *op_array TSRMLS_DC); 711 zend_brk_cont_element *get_next_brk_cont_element(zend_op_array *op_array); 712 void zend_do_first_catch(znode *open_parentheses TSRMLS_DC); 713 void zend_initialize_try_catch_element(znode *catch_token TSRMLS_DC); 714 void zend_do_mark_last_catch(const znode *first_catch, const znode *last_additional_catch TSRMLS_DC); 715 ZEND_API zend_bool zend_is_compiling(TSRMLS_D); 716 ZEND_API char *zend_make_compiled_string_description(const char *name TSRMLS_DC); 717 ZEND_API void zend_initialize_class_data(zend_class_entry *ce, zend_bool nullify_handlers TSRMLS_DC); 718 int zend_get_class_fetch_type(const char *class_name, uint class_name_len); 719 720 typedef zend_bool (*zend_auto_global_callback)(const char *name, uint name_len TSRMLS_DC); 721 typedef struct _zend_auto_global { 722 const char *name; 723 uint name_len; 724 zend_auto_global_callback auto_global_callback; 725 zend_bool jit; 726 zend_bool armed; 727 } zend_auto_global; 728 729 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); 730 ZEND_API void zend_activate_auto_globals(TSRMLS_D); 731 ZEND_API zend_bool zend_is_auto_global(const char *name, uint name_len TSRMLS_DC); 732 ZEND_API zend_bool zend_is_auto_global_quick(const char *name, uint name_len, ulong hashval TSRMLS_DC); 733 ZEND_API size_t zend_dirname(char *path, size_t len); 734 735 int zendlex(znode *zendlval TSRMLS_DC); 736 737 int zend_add_literal(zend_op_array *op_array, const zval *zv TSRMLS_DC); 738 739 /* BEGIN: OPCODES */ 740 741 #include "zend_vm_opcodes.h" 742 743 #define ZEND_OP_DATA 137 744 745 /* END: OPCODES */ 746 747 /* class fetches */ 748 #define ZEND_FETCH_CLASS_DEFAULT 0 749 #define ZEND_FETCH_CLASS_SELF 1 750 #define ZEND_FETCH_CLASS_PARENT 2 751 #define ZEND_FETCH_CLASS_MAIN 3 /* unused */ 752 #define ZEND_FETCH_CLASS_GLOBAL 4 /* unused */ 753 #define ZEND_FETCH_CLASS_AUTO 5 754 #define ZEND_FETCH_CLASS_INTERFACE 6 755 #define ZEND_FETCH_CLASS_STATIC 7 756 #define ZEND_FETCH_CLASS_TRAIT 14 757 #define ZEND_FETCH_CLASS_MASK 0x0f 758 #define ZEND_FETCH_CLASS_NO_AUTOLOAD 0x80 759 #define ZEND_FETCH_CLASS_SILENT 0x0100 760 761 /* variable parsing type (compile-time) */ 762 #define ZEND_PARSED_MEMBER (1<<0) 763 #define ZEND_PARSED_METHOD_CALL (1<<1) 764 #define ZEND_PARSED_STATIC_MEMBER (1<<2) 765 #define ZEND_PARSED_FUNCTION_CALL (1<<3) 766 #define ZEND_PARSED_VARIABLE (1<<4) 767 #define ZEND_PARSED_REFERENCE_VARIABLE (1<<5) 768 #define ZEND_PARSED_NEW (1<<6) 769 #define ZEND_PARSED_LIST_EXPR (1<<7) 770 771 772 /* unset types */ 773 #define ZEND_UNSET_REG 0 774 775 /* var status for backpatching */ 776 #define BP_VAR_R 0 777 #define BP_VAR_W 1 778 #define BP_VAR_RW 2 779 #define BP_VAR_IS 3 780 #define BP_VAR_NA 4 /* if not applicable */ 781 #define BP_VAR_FUNC_ARG 5 782 #define BP_VAR_UNSET 6 783 784 785 #define ZEND_INTERNAL_FUNCTION 1 786 #define ZEND_USER_FUNCTION 2 787 #define ZEND_OVERLOADED_FUNCTION 3 788 #define ZEND_EVAL_CODE 4 789 #define ZEND_OVERLOADED_FUNCTION_TEMPORARY 5 790 791 #define ZEND_INTERNAL_CLASS 1 792 #define ZEND_USER_CLASS 2 793 794 #define ZEND_EVAL (1<<0) 795 #define ZEND_INCLUDE (1<<1) 796 #define ZEND_INCLUDE_ONCE (1<<2) 797 #define ZEND_REQUIRE (1<<3) 798 #define ZEND_REQUIRE_ONCE (1<<4) 799 800 #define ZEND_CT (1<<0) 801 #define ZEND_RT (1<<1) 802 803 /* global/local fetches */ 804 #define ZEND_FETCH_GLOBAL 0x00000000 805 #define ZEND_FETCH_LOCAL 0x10000000 806 #define ZEND_FETCH_STATIC 0x20000000 807 #define ZEND_FETCH_STATIC_MEMBER 0x30000000 808 #define ZEND_FETCH_GLOBAL_LOCK 0x40000000 809 #define ZEND_FETCH_LEXICAL 0x50000000 810 811 #define ZEND_FETCH_TYPE_MASK 0x70000000 812 813 #define ZEND_FETCH_STANDARD 0x00000000 814 #define ZEND_FETCH_ADD_LOCK 0x08000000 815 #define ZEND_FETCH_MAKE_REF 0x04000000 816 817 #define ZEND_ISSET 0x02000000 818 #define ZEND_ISEMPTY 0x01000000 819 #define ZEND_ISSET_ISEMPTY_MASK (ZEND_ISSET | ZEND_ISEMPTY) 820 #define ZEND_QUICK_SET 0x00800000 821 822 #define ZEND_FETCH_ARG_MASK 0x000fffff 823 824 #define ZEND_FE_FETCH_BYREF 1 825 #define ZEND_FE_FETCH_WITH_KEY 2 826 827 #define ZEND_FE_RESET_VARIABLE (1<<0) 828 #define ZEND_FE_RESET_REFERENCE (1<<1) 829 #define EXT_TYPE_FREE_ON_RETURN (1<<2) 830 831 #define ZEND_MEMBER_FUNC_CALL 1<<0 832 833 #define ZEND_ARG_SEND_BY_REF (1<<0) 834 #define ZEND_ARG_COMPILE_TIME_BOUND (1<<1) 835 #define ZEND_ARG_SEND_FUNCTION (1<<2) 836 #define ZEND_ARG_SEND_SILENT (1<<3) 837 838 #define ZEND_SEND_BY_VAL 0 839 #define ZEND_SEND_BY_REF 1 840 #define ZEND_SEND_PREFER_REF 2 841 842 #define CHECK_ARG_SEND_TYPE(zf, arg_num, m) \ 843 ((zf)->common.arg_info && \ 844 (arg_num <= (zf)->common.num_args \ 845 ? ((zf)->common.arg_info[arg_num-1].pass_by_reference & (m)) \ 846 : ((zf)->common.fn_flags & ZEND_ACC_VARIADIC) \ 847 ? ((zf)->common.arg_info[(zf)->common.num_args-1].pass_by_reference & (m)) : 0)) 848 849 #define ARG_MUST_BE_SENT_BY_REF(zf, arg_num) \ 850 CHECK_ARG_SEND_TYPE(zf, arg_num, ZEND_SEND_BY_REF) 851 852 #define ARG_SHOULD_BE_SENT_BY_REF(zf, arg_num) \ 853 CHECK_ARG_SEND_TYPE(zf, arg_num, ZEND_SEND_BY_REF|ZEND_SEND_PREFER_REF) 854 855 #define ARG_MAY_BE_SENT_BY_REF(zf, arg_num) \ 856 CHECK_ARG_SEND_TYPE(zf, arg_num, ZEND_SEND_PREFER_REF) 857 858 #define ZEND_RETURN_VAL 0 859 #define ZEND_RETURN_REF 1 860 861 862 #define ZEND_RETURNS_FUNCTION 1<<0 863 #define ZEND_RETURNS_NEW 1<<1 864 #define ZEND_RETURNS_VALUE 1<<2 865 866 #define ZEND_FAST_RET_TO_CATCH 1 867 #define ZEND_FAST_RET_TO_FINALLY 2 868 869 #define ZEND_FAST_CALL_FROM_CATCH 1 870 #define ZEND_FAST_CALL_FROM_FINALLY 2 871 872 END_EXTERN_C() 873 874 #define ZEND_CLONE_FUNC_NAME "__clone" 875 #define ZEND_CONSTRUCTOR_FUNC_NAME "__construct" 876 #define ZEND_DESTRUCTOR_FUNC_NAME "__destruct" 877 #define ZEND_GET_FUNC_NAME "__get" 878 #define ZEND_SET_FUNC_NAME "__set" 879 #define ZEND_UNSET_FUNC_NAME "__unset" 880 #define ZEND_ISSET_FUNC_NAME "__isset" 881 #define ZEND_CALL_FUNC_NAME "__call" 882 #define ZEND_CALLSTATIC_FUNC_NAME "__callstatic" 883 #define ZEND_TOSTRING_FUNC_NAME "__tostring" 884 #define ZEND_AUTOLOAD_FUNC_NAME "__autoload" 885 #define ZEND_INVOKE_FUNC_NAME "__invoke" 886 #define ZEND_DEBUGINFO_FUNC_NAME "__debuginfo" 887 888 /* The following constants may be combined in CG(compiler_options) 889 * to change the default compiler behavior */ 890 891 /* generate extended debug information */ 892 #define ZEND_COMPILE_EXTENDED_INFO (1<<0) 893 894 /* call op_array handler of extendions */ 895 #define ZEND_COMPILE_HANDLE_OP_ARRAY (1<<1) 896 897 /* generate ZEND_DO_FCALL_BY_NAME for internal functions instead of ZEND_DO_FCALL */ 898 #define ZEND_COMPILE_IGNORE_INTERNAL_FUNCTIONS (1<<2) 899 900 /* don't perform early binding for classes inherited form internal ones; 901 * in namespaces assume that internal class that doesn't exist at compile-time 902 * may apper in run-time */ 903 #define ZEND_COMPILE_IGNORE_INTERNAL_CLASSES (1<<3) 904 905 /* generate ZEND_DECLARE_INHERITED_CLASS_DELAYED opcode to delay early binding */ 906 #define ZEND_COMPILE_DELAYED_BINDING (1<<4) 907 908 /* disable constant substitution at compile-time */ 909 #define ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION (1<<5) 910 911 /* The default value for CG(compiler_options) */ 912 #define ZEND_COMPILE_DEFAULT ZEND_COMPILE_HANDLE_OP_ARRAY 913 914 /* The default value for CG(compiler_options) during eval() */ 915 #define ZEND_COMPILE_DEFAULT_FOR_EVAL 0 916 917 #endif /* ZEND_COMPILE_H */ 918 919 /* 920 * Local variables: 921 * tab-width: 4 922 * c-basic-offset: 4 923 * indent-tabs-mode: t 924 * End: 925 */ 926
