1: /*
2: +----------------------------------------------------------------------+
3: | Zend Engine |
4: +----------------------------------------------------------------------+
5: | Copyright (c) 1998-2014 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: zend_compile.h,v 1.1.1.4 2014/06/15 20:04:03 misho Exp $ */
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: HashTable *labels;
63: } zend_compiler_context;
64:
65: typedef struct _zend_literal {
66: zval constant;
67: zend_ulong hash_value;
68: zend_uint cache_slot;
69: } zend_literal;
70:
71: #define Z_HASH_P(zv) \
72: (((zend_literal*)(zv))->hash_value)
73:
74: typedef union _znode_op {
75: zend_uint constant;
76: zend_uint var;
77: zend_uint num;
78: zend_ulong hash;
79: zend_uint opline_num; /* Needs to be signed */
80: zend_op *jmp_addr;
81: zval *zv;
82: zend_literal *literal;
83: void *ptr; /* Used for passing pointers from the compile to execution phase, currently used for traits */
84: } znode_op;
85:
86: typedef struct _znode { /* used only during compilation */
87: int op_type;
88: union {
89: znode_op op;
90: zval constant; /* replaced by literal/zv */
91: zend_op_array *op_array;
92: } u;
93: zend_uint EA; /* extended attributes */
94: } znode;
95:
96: typedef struct _zend_execute_data zend_execute_data;
97:
98: #define ZEND_OPCODE_HANDLER_ARGS zend_execute_data *execute_data TSRMLS_DC
99: #define ZEND_OPCODE_HANDLER_ARGS_PASSTHRU execute_data TSRMLS_CC
100:
101: typedef int (*user_opcode_handler_t) (ZEND_OPCODE_HANDLER_ARGS);
102: typedef int (ZEND_FASTCALL *opcode_handler_t) (ZEND_OPCODE_HANDLER_ARGS);
103:
104: extern ZEND_API opcode_handler_t *zend_opcode_handlers;
105:
106: struct _zend_op {
107: opcode_handler_t handler;
108: znode_op op1;
109: znode_op op2;
110: znode_op result;
111: ulong extended_value;
112: uint lineno;
113: zend_uchar opcode;
114: zend_uchar op1_type;
115: zend_uchar op2_type;
116: zend_uchar result_type;
117: };
118:
119:
120: typedef struct _zend_brk_cont_element {
121: int start;
122: int cont;
123: int brk;
124: int parent;
125: } zend_brk_cont_element;
126:
127: typedef struct _zend_label {
128: int brk_cont;
129: zend_uint opline_num;
130: } zend_label;
131:
132: typedef struct _zend_try_catch_element {
133: zend_uint try_op;
134: zend_uint catch_op; /* ketchup! */
135: } zend_try_catch_element;
136:
137: #if SIZEOF_LONG == 8
138: #define THIS_HASHVAL 210728972157UL
139: #else
140: #define THIS_HASHVAL 275574653UL
141: #endif
142:
143: /* method flags (types) */
144: #define ZEND_ACC_STATIC 0x01
145: #define ZEND_ACC_ABSTRACT 0x02
146: #define ZEND_ACC_FINAL 0x04
147: #define ZEND_ACC_IMPLEMENTED_ABSTRACT 0x08
148:
149: /* class flags (types) */
150: /* 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). */
151: /* ZEND_ACC_EXPLICIT_ABSTRACT_CLASS denotes that a class was explicitly defined as abstract by using the keyword. */
152: #define ZEND_ACC_IMPLICIT_ABSTRACT_CLASS 0x10
153: #define ZEND_ACC_EXPLICIT_ABSTRACT_CLASS 0x20
154: #define ZEND_ACC_FINAL_CLASS 0x40
155: #define ZEND_ACC_INTERFACE 0x80
156: #define ZEND_ACC_TRAIT 0x120
157:
158: /* op_array flags */
159: #define ZEND_ACC_INTERACTIVE 0x10
160:
161: /* method flags (visibility) */
162: /* The order of those must be kept - public < protected < private */
163: #define ZEND_ACC_PUBLIC 0x100
164: #define ZEND_ACC_PROTECTED 0x200
165: #define ZEND_ACC_PRIVATE 0x400
166: #define ZEND_ACC_PPP_MASK (ZEND_ACC_PUBLIC | ZEND_ACC_PROTECTED | ZEND_ACC_PRIVATE)
167:
168: #define ZEND_ACC_CHANGED 0x800
169: #define ZEND_ACC_IMPLICIT_PUBLIC 0x1000
170:
171: /* method flags (special method detection) */
172: #define ZEND_ACC_CTOR 0x2000
173: #define ZEND_ACC_DTOR 0x4000
174: #define ZEND_ACC_CLONE 0x8000
175:
176: /* method flag (bc only), any method that has this flag can be used statically and non statically. */
177: #define ZEND_ACC_ALLOW_STATIC 0x10000
178:
179: /* shadow of parent's private method/property */
180: #define ZEND_ACC_SHADOW 0x20000
181:
182: /* deprecation flag */
183: #define ZEND_ACC_DEPRECATED 0x40000
184:
185: /* class implement interface(s) flag */
186: #define ZEND_ACC_IMPLEMENT_INTERFACES 0x80000
187: #define ZEND_ACC_IMPLEMENT_TRAITS 0x400000
188:
189: /* class constants updated */
190: #define ZEND_ACC_CONSTANTS_UPDATED 0x100000
191:
192: /* user class has methods with static variables */
193: #define ZEND_HAS_STATIC_IN_METHODS 0x800000
194:
195:
196: #define ZEND_ACC_CLOSURE 0x100000
197:
198: /* function flag for internal user call handlers __call, __callstatic */
199: #define ZEND_ACC_CALL_VIA_HANDLER 0x200000
200:
201: /* disable inline caching */
202: #define ZEND_ACC_NEVER_CACHE 0x400000
203:
204: #define ZEND_ACC_PASS_REST_BY_REFERENCE 0x1000000
205: #define ZEND_ACC_PASS_REST_PREFER_REF 0x2000000
206:
207: #define ZEND_ACC_RETURN_REFERENCE 0x4000000
208: #define ZEND_ACC_DONE_PASS_TWO 0x8000000
209:
210: char *zend_visibility_string(zend_uint fn_flags);
211:
212:
213: typedef struct _zend_property_info {
214: zend_uint flags;
215: const char *name;
216: int name_length;
217: ulong h;
218: int offset;
219: const char *doc_comment;
220: int doc_comment_len;
221: zend_class_entry *ce;
222: } zend_property_info;
223:
224:
225: typedef struct _zend_arg_info {
226: const char *name;
227: zend_uint name_len;
228: const char *class_name;
229: zend_uint class_name_len;
230: zend_uchar type_hint;
231: zend_bool allow_null;
232: zend_bool pass_by_reference;
233: } zend_arg_info;
234:
235: /* the following structure repeats the layout of zend_arg_info,
236: * but its fields have different meaning. It's used as the first element of
237: * arg_info array to define properties of internal functions.
238: */
239: typedef struct _zend_internal_function_info {
240: const char *_name;
241: zend_uint _name_len;
242: const char *_class_name;
243: zend_uint required_num_args;
244: zend_uchar _type_hint;
245: zend_bool return_reference;
246: zend_bool pass_rest_by_reference;
247: } zend_internal_function_info;
248:
249: typedef struct _zend_compiled_variable {
250: const char *name;
251: int name_len;
252: ulong hash_value;
253: } zend_compiled_variable;
254:
255: struct _zend_op_array {
256: /* Common elements */
257: zend_uchar type;
258: const char *function_name;
259: zend_class_entry *scope;
260: zend_uint fn_flags;
261: union _zend_function *prototype;
262: zend_uint num_args;
263: zend_uint required_num_args;
264: zend_arg_info *arg_info;
265: /* END of common elements */
266:
267: zend_uint *refcount;
268:
269: zend_op *opcodes;
270: zend_uint last;
271:
272: zend_compiled_variable *vars;
273: int last_var;
274:
275: zend_uint T;
276:
277: zend_brk_cont_element *brk_cont_array;
278: int last_brk_cont;
279:
280: zend_try_catch_element *try_catch_array;
281: int last_try_catch;
282:
283: /* static variables support */
284: HashTable *static_variables;
285:
286: zend_uint this_var;
287:
288: const char *filename;
289: zend_uint line_start;
290: zend_uint line_end;
291: const char *doc_comment;
292: zend_uint doc_comment_len;
293: zend_uint early_binding; /* the linked list of delayed declarations */
294:
295: zend_literal *literals;
296: int last_literal;
297:
298: void **run_time_cache;
299: int last_cache_slot;
300:
301: void *reserved[ZEND_MAX_RESERVED_RESOURCES];
302: };
303:
304:
305: #define ZEND_RETURN_VALUE 0
306: #define ZEND_RETURN_REFERENCE 1
307:
308: typedef struct _zend_internal_function {
309: /* Common elements */
310: zend_uchar type;
311: const char * function_name;
312: zend_class_entry *scope;
313: zend_uint fn_flags;
314: union _zend_function *prototype;
315: zend_uint num_args;
316: zend_uint required_num_args;
317: zend_arg_info *arg_info;
318: /* END of common elements */
319:
320: void (*handler)(INTERNAL_FUNCTION_PARAMETERS);
321: struct _zend_module_entry *module;
322: } zend_internal_function;
323:
324: #define ZEND_FN_SCOPE_NAME(function) ((function) && (function)->common.scope ? (function)->common.scope->name : "")
325:
326: typedef union _zend_function {
327: zend_uchar type; /* MUST be the first element of this struct! */
328:
329: struct {
330: zend_uchar type; /* never used */
331: const char *function_name;
332: zend_class_entry *scope;
333: zend_uint fn_flags;
334: union _zend_function *prototype;
335: zend_uint num_args;
336: zend_uint required_num_args;
337: zend_arg_info *arg_info;
338: } common;
339:
340: zend_op_array op_array;
341: zend_internal_function internal_function;
342: } zend_function;
343:
344:
345: typedef struct _zend_function_state {
346: zend_function *function;
347: void **arguments;
348: } zend_function_state;
349:
350:
351: typedef struct _zend_switch_entry {
352: znode cond;
353: int default_case;
354: int control_var;
355: } zend_switch_entry;
356:
357:
358: typedef struct _list_llist_element {
359: znode var;
360: zend_llist dimensions;
361: znode value;
362: } list_llist_element;
363:
364: union _temp_variable;
365:
366: struct _zend_execute_data {
367: struct _zend_op *opline;
368: zend_function_state function_state;
369: zend_function *fbc; /* Function Being Called */
370: zend_class_entry *called_scope;
371: zend_op_array *op_array;
372: zval *object;
373: union _temp_variable *Ts;
374: zval ***CVs;
375: HashTable *symbol_table;
376: struct _zend_execute_data *prev_execute_data;
377: zval *old_error_reporting;
378: zend_bool nested;
379: zval **original_return_value;
380: zend_class_entry *current_scope;
381: zend_class_entry *current_called_scope;
382: zval *current_this;
383: zval *current_object;
384: };
385:
386: #define EX(element) execute_data.element
387:
388:
389: #define IS_CONST (1<<0)
390: #define IS_TMP_VAR (1<<1)
391: #define IS_VAR (1<<2)
392: #define IS_UNUSED (1<<3) /* Unused variable */
393: #define IS_CV (1<<4) /* Compiled variable */
394:
395: #define EXT_TYPE_UNUSED (1<<5)
396:
397: #include "zend_globals.h"
398:
399: BEGIN_EXTERN_C()
400:
401: void init_compiler(TSRMLS_D);
402: void shutdown_compiler(TSRMLS_D);
403: void zend_init_compiler_data_structures(TSRMLS_D);
404: void zend_init_compiler_context(TSRMLS_D);
405:
406: extern ZEND_API zend_op_array *(*zend_compile_file)(zend_file_handle *file_handle, int type TSRMLS_DC);
407: extern ZEND_API zend_op_array *(*zend_compile_string)(zval *source_string, char *filename TSRMLS_DC);
408:
409: ZEND_API int lex_scan(zval *zendlval TSRMLS_DC);
410: void startup_scanner(TSRMLS_D);
411: void shutdown_scanner(TSRMLS_D);
412:
413: ZEND_API char *zend_set_compiled_filename(const char *new_compiled_filename TSRMLS_DC);
414: ZEND_API void zend_restore_compiled_filename(char *original_compiled_filename TSRMLS_DC);
415: ZEND_API char *zend_get_compiled_filename(TSRMLS_D);
416: ZEND_API int zend_get_compiled_lineno(TSRMLS_D);
417: ZEND_API size_t zend_get_scanned_file_offset(TSRMLS_D);
418:
419: void zend_resolve_non_class_name(znode *element_name, zend_bool check_namespace TSRMLS_DC);
420: void zend_resolve_class_name(znode *class_name, ulong fetch_type, int check_ns_name TSRMLS_DC);
421: ZEND_API const char* zend_get_compiled_variable_name(const zend_op_array *op_array, zend_uint var, int* name_len);
422:
423: #ifdef ZTS
424: const char *zend_get_zendtext(TSRMLS_D);
425: int zend_get_zendleng(TSRMLS_D);
426: #endif
427:
428:
429: /* parser-driven code generators */
430: void zend_do_binary_op(zend_uchar op, znode *result, const znode *op1, const znode *op2 TSRMLS_DC);
431: void zend_do_unary_op(zend_uchar op, znode *result, const znode *op1 TSRMLS_DC);
432: void zend_do_binary_assign_op(zend_uchar op, znode *result, const znode *op1, const znode *op2 TSRMLS_DC);
433: void zend_do_assign(znode *result, znode *variable, znode *value TSRMLS_DC);
434: void zend_do_assign_ref(znode *result, const znode *lvar, const znode *rvar TSRMLS_DC);
435: void fetch_simple_variable(znode *result, znode *varname, int bp TSRMLS_DC);
436: void fetch_simple_variable_ex(znode *result, znode *varname, int bp, zend_uchar op TSRMLS_DC);
437: void zend_do_indirect_references(znode *result, const znode *num_references, znode *variable TSRMLS_DC);
438: void zend_do_fetch_static_variable(znode *varname, const znode *static_assignment, int fetch_type TSRMLS_DC);
439: void zend_do_fetch_global_variable(znode *varname, const znode *static_assignment, int fetch_type TSRMLS_DC);
440:
441: void fetch_array_begin(znode *result, znode *varname, znode *first_dim TSRMLS_DC);
442: void fetch_array_dim(znode *result, const znode *parent, const znode *dim TSRMLS_DC);
443: void fetch_string_offset(znode *result, const znode *parent, const znode *offset TSRMLS_DC);
444: void zend_do_fetch_static_member(znode *result, znode *class_znode TSRMLS_DC);
445: void zend_do_print(znode *result, const znode *arg TSRMLS_DC);
446: void zend_do_echo(const znode *arg TSRMLS_DC);
447: typedef int (*unary_op_type)(zval *, zval * TSRMLS_DC);
448: typedef int (*binary_op_type)(zval *, zval *, zval * TSRMLS_DC);
449: ZEND_API unary_op_type get_unary_op(int opcode);
450: ZEND_API binary_op_type get_binary_op(int opcode);
451:
452: void zend_do_while_cond(const znode *expr, znode *close_bracket_token TSRMLS_DC);
453: void zend_do_while_end(const znode *while_token, const znode *close_bracket_token TSRMLS_DC);
454: void zend_do_do_while_begin(TSRMLS_D);
455: void zend_do_do_while_end(const znode *do_token, const znode *expr_open_bracket, const znode *expr TSRMLS_DC);
456:
457:
458: void zend_do_if_cond(const znode *cond, znode *closing_bracket_token TSRMLS_DC);
459: void zend_do_if_after_statement(const znode *closing_bracket_token, unsigned char initialize TSRMLS_DC);
460: void zend_do_if_end(TSRMLS_D);
461:
462: void zend_do_for_cond(const znode *expr, znode *second_semicolon_token TSRMLS_DC);
463: void zend_do_for_before_statement(const znode *cond_start, const znode *second_semicolon_token TSRMLS_DC);
464: void zend_do_for_end(const znode *second_semicolon_token TSRMLS_DC);
465:
466: void zend_do_pre_incdec(znode *result, const znode *op1, zend_uchar op TSRMLS_DC);
467: void zend_do_post_incdec(znode *result, const znode *op1, zend_uchar op TSRMLS_DC);
468:
469: void zend_do_begin_variable_parse(TSRMLS_D);
470: void zend_do_end_variable_parse(znode *variable, int type, int arg_offset TSRMLS_DC);
471:
472: void zend_check_writable_variable(const znode *variable);
473:
474: void zend_do_free(znode *op1 TSRMLS_DC);
475:
476: void zend_do_add_string(znode *result, const znode *op1, znode *op2 TSRMLS_DC);
477: void zend_do_add_variable(znode *result, const znode *op1, const znode *op2 TSRMLS_DC);
478:
479: int zend_do_verify_access_types(const znode *current_access_type, const znode *new_modifier);
480: void zend_do_begin_function_declaration(znode *function_token, znode *function_name, int is_method, int return_reference, znode *fn_flags_znode TSRMLS_DC);
481: void zend_do_end_function_declaration(const znode *function_token TSRMLS_DC);
482: 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);
483: int zend_do_begin_function_call(znode *function_name, zend_bool check_namespace TSRMLS_DC);
484: void zend_do_begin_method_call(znode *left_bracket TSRMLS_DC);
485: void zend_do_clone(znode *result, const znode *expr TSRMLS_DC);
486: void zend_do_begin_dynamic_function_call(znode *function_name, int prefix_len TSRMLS_DC);
487: void zend_do_fetch_class(znode *result, znode *class_name TSRMLS_DC);
488: void zend_do_build_full_name(znode *result, znode *prefix, znode *name, int is_class_member TSRMLS_DC);
489: int zend_do_begin_class_member_function_call(znode *class_name, znode *method_name TSRMLS_DC);
490: void zend_do_end_function_call(znode *function_name, znode *result, const znode *argument_list, int is_method, int is_dynamic_fcall TSRMLS_DC);
491: void zend_do_return(znode *expr, int do_end_vparse TSRMLS_DC);
492: void zend_do_handle_exception(TSRMLS_D);
493:
494: void zend_do_begin_lambda_function_declaration(znode *result, znode *function_token, int return_reference, int is_static TSRMLS_DC);
495: void zend_do_fetch_lexical_variable(znode *varname, zend_bool is_ref TSRMLS_DC);
496:
497: void zend_do_try(znode *try_token TSRMLS_DC);
498: void zend_do_begin_catch(znode *try_token, znode *catch_class, znode *catch_var, znode *first_catch TSRMLS_DC);
499: void zend_do_end_catch(const znode *try_token TSRMLS_DC);
500: void zend_do_throw(const znode *expr TSRMLS_DC);
501:
502: ZEND_API int do_bind_function(const zend_op_array *op_array, zend_op *opline, HashTable *function_table, zend_bool compile_time);
503: 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);
504: 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);
505: ZEND_API void zend_do_inherit_interfaces(zend_class_entry *ce, const zend_class_entry *iface TSRMLS_DC);
506: ZEND_API void zend_do_implement_interface(zend_class_entry *ce, zend_class_entry *iface TSRMLS_DC);
507: void zend_do_implements_interface(znode *interface_znode TSRMLS_DC);
508:
509: /* Trait related functions */
510: void zend_do_use_trait(znode *trait_znode TSRMLS_DC);
511: void zend_prepare_reference(znode *result, znode *class_name, znode *method_name TSRMLS_DC);
512: void zend_add_trait_precedence(znode *method_reference, znode *trait_list TSRMLS_DC);
513: void zend_add_trait_alias(znode *method_reference, znode *modifiers, znode *alias TSRMLS_DC);
514:
515: ZEND_API void zend_do_implement_trait(zend_class_entry *ce, zend_class_entry *trait TSRMLS_DC);
516: ZEND_API void zend_do_bind_traits(zend_class_entry *ce TSRMLS_DC);
517:
518: ZEND_API void zend_do_inheritance(zend_class_entry *ce, zend_class_entry *parent_ce TSRMLS_DC);
519: void zend_do_early_binding(TSRMLS_D);
520: ZEND_API void zend_do_delayed_early_binding(const zend_op_array *op_array TSRMLS_DC);
521:
522: void zend_do_pass_param(znode *param, zend_uchar op, int offset TSRMLS_DC);
523:
524:
525: void zend_do_boolean_or_begin(znode *expr1, znode *op_token TSRMLS_DC);
526: void zend_do_boolean_or_end(znode *result, const znode *expr1, const znode *expr2, znode *op_token TSRMLS_DC);
527: void zend_do_boolean_and_begin(znode *expr1, znode *op_token TSRMLS_DC);
528: void zend_do_boolean_and_end(znode *result, const znode *expr1, const znode *expr2, const znode *op_token TSRMLS_DC);
529:
530: void zend_do_brk_cont(zend_uchar op, const znode *expr TSRMLS_DC);
531:
532: void zend_do_switch_cond(const znode *cond TSRMLS_DC);
533: void zend_do_switch_end(const znode *case_list TSRMLS_DC);
534: void zend_do_case_before_statement(const znode *case_list, znode *case_token, const znode *case_expr TSRMLS_DC);
535: void zend_do_case_after_statement(znode *result, const znode *case_token TSRMLS_DC);
536: void zend_do_default_before_statement(const znode *case_list, znode *default_token TSRMLS_DC);
537:
538: void zend_do_begin_class_declaration(const znode *class_token, znode *class_name, const znode *parent_class_name TSRMLS_DC);
539: void zend_do_end_class_declaration(const znode *class_token, const znode *parent_token TSRMLS_DC);
540: void zend_do_declare_property(const znode *var_name, const znode *value, zend_uint access_type TSRMLS_DC);
541: void zend_do_declare_class_constant(znode *var_name, const znode *value TSRMLS_DC);
542:
543: void zend_do_fetch_property(znode *result, znode *object, const znode *property TSRMLS_DC);
544:
545: void zend_do_halt_compiler_register(TSRMLS_D);
546:
547: void zend_do_push_object(const znode *object TSRMLS_DC);
548: void zend_do_pop_object(znode *object TSRMLS_DC);
549:
550:
551: void zend_do_begin_new_object(znode *new_token, znode *class_type TSRMLS_DC);
552: void zend_do_end_new_object(znode *result, const znode *new_token, const znode *argument_list TSRMLS_DC);
553:
554: void zend_do_fetch_constant(znode *result, znode *constant_container, znode *constant_name, int mode, zend_bool check_namespace TSRMLS_DC);
555:
556: void zend_do_shell_exec(znode *result, const znode *cmd TSRMLS_DC);
557:
558: void zend_do_init_array(znode *result, const znode *expr, const znode *offset, zend_bool is_ref TSRMLS_DC);
559: void zend_do_add_array_element(znode *result, const znode *expr, const znode *offset, zend_bool is_ref TSRMLS_DC);
560: void zend_do_add_static_array_element(znode *result, znode *offset, const znode *expr);
561: void zend_do_list_init(TSRMLS_D);
562: void zend_do_list_end(znode *result, znode *expr TSRMLS_DC);
563: void zend_do_add_list_element(const znode *element TSRMLS_DC);
564: void zend_do_new_list_begin(TSRMLS_D);
565: void zend_do_new_list_end(TSRMLS_D);
566:
567: /* Functions for a null terminated pointer list, used for traits parsing and compilation */
568: void zend_init_list(void *result, void *item TSRMLS_DC);
569: void zend_add_to_list(void *result, void *item TSRMLS_DC);
570:
571:
572: void zend_do_cast(znode *result, const znode *expr, int type TSRMLS_DC);
573: void zend_do_include_or_eval(int type, znode *result, const znode *op1 TSRMLS_DC);
574:
575: void zend_do_unset(const znode *variable TSRMLS_DC);
576: void zend_do_isset_or_isempty(int type, znode *result, znode *variable TSRMLS_DC);
577:
578: void zend_do_instanceof(znode *result, const znode *expr, const znode *class_znode, int type TSRMLS_DC);
579:
580: void zend_do_foreach_begin(znode *foreach_token, znode *open_brackets_token, znode *array, znode *as_token, int variable TSRMLS_DC);
581: void zend_do_foreach_cont(znode *foreach_token, const znode *open_brackets_token, const znode *as_token, znode *value, znode *key TSRMLS_DC);
582: void zend_do_foreach_end(const znode *foreach_token, const znode *as_token TSRMLS_DC);
583:
584: void zend_do_declare_begin(TSRMLS_D);
585: void zend_do_declare_stmt(znode *var, znode *val TSRMLS_DC);
586: void zend_do_declare_end(const znode *declare_token TSRMLS_DC);
587:
588: void zend_do_exit(znode *result, const znode *message TSRMLS_DC);
589:
590: void zend_do_begin_silence(znode *strudel_token TSRMLS_DC);
591: void zend_do_end_silence(const znode *strudel_token TSRMLS_DC);
592:
593: void zend_do_jmp_set(const znode *value, znode *jmp_token, znode *colon_token TSRMLS_DC);
594: void zend_do_jmp_set_else(znode *result, const znode *false_value, const znode *jmp_token, const znode *colon_token TSRMLS_DC);
595:
596: void zend_do_begin_qm_op(const znode *cond, znode *qm_token TSRMLS_DC);
597: void zend_do_qm_true(const znode *true_value, znode *qm_token, znode *colon_token TSRMLS_DC);
598: void zend_do_qm_false(znode *result, const znode *false_value, const znode *qm_token, const znode *colon_token TSRMLS_DC);
599:
600: void zend_do_extended_info(TSRMLS_D);
601: void zend_do_extended_fcall_begin(TSRMLS_D);
602: void zend_do_extended_fcall_end(TSRMLS_D);
603:
604: void zend_do_ticks(TSRMLS_D);
605:
606: void zend_do_abstract_method(const znode *function_name, znode *modifiers, const znode *body TSRMLS_DC);
607:
608: void zend_do_declare_constant(znode *name, znode *value TSRMLS_DC);
609: void zend_do_build_namespace_name(znode *result, znode *prefix, znode *name TSRMLS_DC);
610: void zend_do_begin_namespace(const znode *name, zend_bool with_brackets TSRMLS_DC);
611: void zend_do_end_namespace(TSRMLS_D);
612: void zend_verify_namespace(TSRMLS_D);
613: void zend_do_use(znode *name, znode *new_name, int is_global TSRMLS_DC);
614: void zend_do_end_compilation(TSRMLS_D);
615:
616: void zend_do_label(znode *label TSRMLS_DC);
617: void zend_do_goto(const znode *label TSRMLS_DC);
618: void zend_resolve_goto_label(zend_op_array *op_array, zend_op *opline, int pass2 TSRMLS_DC);
619: void zend_release_labels(int temporary TSRMLS_DC);
620:
621: ZEND_API void function_add_ref(zend_function *function);
622:
623: #define INITIAL_OP_ARRAY_SIZE 64
624: #define INITIAL_INTERACTIVE_OP_ARRAY_SIZE 8192
625:
626:
627: /* helper functions in zend_language_scanner.l */
628: ZEND_API zend_op_array *compile_file(zend_file_handle *file_handle, int type TSRMLS_DC);
629: ZEND_API zend_op_array *compile_string(zval *source_string, char *filename TSRMLS_DC);
630: ZEND_API zend_op_array *compile_filename(int type, zval *filename TSRMLS_DC);
631: ZEND_API int zend_execute_scripts(int type TSRMLS_DC, zval **retval, int file_count, ...);
632: ZEND_API int open_file_for_scanning(zend_file_handle *file_handle TSRMLS_DC);
633: ZEND_API void init_op_array(zend_op_array *op_array, zend_uchar type, int initial_ops_size TSRMLS_DC);
634: ZEND_API void destroy_op_array(zend_op_array *op_array TSRMLS_DC);
635: ZEND_API void zend_destroy_file_handle(zend_file_handle *file_handle TSRMLS_DC);
636: ZEND_API int zend_cleanup_class_data(zend_class_entry **pce TSRMLS_DC);
637: ZEND_API int zend_cleanup_user_class_data(zend_class_entry **pce TSRMLS_DC);
638: ZEND_API void zend_cleanup_internal_class_data(zend_class_entry *ce TSRMLS_DC);
639: ZEND_API void zend_cleanup_internal_classes(TSRMLS_D);
640: ZEND_API int zend_cleanup_function_data(zend_function *function TSRMLS_DC);
641: ZEND_API int zend_cleanup_function_data_full(zend_function *function TSRMLS_DC);
642:
643: ZEND_API void destroy_zend_function(zend_function *function TSRMLS_DC);
644: ZEND_API void zend_function_dtor(zend_function *function);
645: ZEND_API void destroy_zend_class(zend_class_entry **pce);
646: void zend_class_add_ref(zend_class_entry **ce);
647:
648: 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);
649: ZEND_API int zend_unmangle_property_name(const char *mangled_property, int mangled_property_len, const char **class_name, const char **prop_name);
650:
651: #define ZEND_FUNCTION_DTOR (void (*)(void *)) zend_function_dtor
652: #define ZEND_CLASS_DTOR (void (*)(void *)) destroy_zend_class
653:
654: zend_op *get_next_op(zend_op_array *op_array TSRMLS_DC);
655: void init_op(zend_op *op TSRMLS_DC);
656: int get_next_op_number(zend_op_array *op_array);
657: int print_class(zend_class_entry *class_entry TSRMLS_DC);
658: void print_op_array(zend_op_array *op_array, int optimizations);
659: ZEND_API int pass_two(zend_op_array *op_array TSRMLS_DC);
660: zend_brk_cont_element *get_next_brk_cont_element(zend_op_array *op_array);
661: void zend_do_first_catch(znode *open_parentheses TSRMLS_DC);
662: void zend_initialize_try_catch_element(const znode *try_token TSRMLS_DC);
663: void zend_do_mark_last_catch(const znode *first_catch, const znode *last_additional_catch TSRMLS_DC);
664: ZEND_API zend_bool zend_is_compiling(TSRMLS_D);
665: ZEND_API char *zend_make_compiled_string_description(const char *name TSRMLS_DC);
666: ZEND_API void zend_initialize_class_data(zend_class_entry *ce, zend_bool nullify_handlers TSRMLS_DC);
667: int zend_get_class_fetch_type(const char *class_name, uint class_name_len);
668:
669: typedef zend_bool (*zend_auto_global_callback)(const char *name, uint name_len TSRMLS_DC);
670: typedef struct _zend_auto_global {
671: const char *name;
672: uint name_len;
673: zend_auto_global_callback auto_global_callback;
674: zend_bool jit;
675: zend_bool armed;
676: } zend_auto_global;
677:
678: 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);
679: ZEND_API void zend_activate_auto_globals(TSRMLS_D);
680: ZEND_API zend_bool zend_is_auto_global(const char *name, uint name_len TSRMLS_DC);
681: ZEND_API zend_bool zend_is_auto_global_quick(const char *name, uint name_len, ulong hashval TSRMLS_DC);
682: ZEND_API size_t zend_dirname(char *path, size_t len);
683:
684: int zendlex(znode *zendlval TSRMLS_DC);
685:
686: int zend_add_literal(zend_op_array *op_array, const zval *zv TSRMLS_DC);
687:
688: /* BEGIN: OPCODES */
689:
690: #include "zend_vm_opcodes.h"
691:
692: #define ZEND_OP_DATA 137
693:
694: /* END: OPCODES */
695:
696: /* class fetches */
697: #define ZEND_FETCH_CLASS_DEFAULT 0
698: #define ZEND_FETCH_CLASS_SELF 1
699: #define ZEND_FETCH_CLASS_PARENT 2
700: #define ZEND_FETCH_CLASS_MAIN 3
701: #define ZEND_FETCH_CLASS_GLOBAL 4
702: #define ZEND_FETCH_CLASS_AUTO 5
703: #define ZEND_FETCH_CLASS_INTERFACE 6
704: #define ZEND_FETCH_CLASS_STATIC 7
705: #define ZEND_FETCH_CLASS_TRAIT 14
706: #define ZEND_FETCH_CLASS_MASK 0x0f
707: #define ZEND_FETCH_CLASS_NO_AUTOLOAD 0x80
708: #define ZEND_FETCH_CLASS_SILENT 0x0100
709:
710: /* variable parsing type (compile-time) */
711: #define ZEND_PARSED_MEMBER (1<<0)
712: #define ZEND_PARSED_METHOD_CALL (1<<1)
713: #define ZEND_PARSED_STATIC_MEMBER (1<<2)
714: #define ZEND_PARSED_FUNCTION_CALL (1<<3)
715: #define ZEND_PARSED_VARIABLE (1<<4)
716: #define ZEND_PARSED_REFERENCE_VARIABLE (1<<5)
717: #define ZEND_PARSED_NEW (1<<6)
718:
719:
720: /* unset types */
721: #define ZEND_UNSET_REG 0
722:
723: /* var status for backpatching */
724: #define BP_VAR_R 0
725: #define BP_VAR_W 1
726: #define BP_VAR_RW 2
727: #define BP_VAR_IS 3
728: #define BP_VAR_NA 4 /* if not applicable */
729: #define BP_VAR_FUNC_ARG 5
730: #define BP_VAR_UNSET 6
731:
732:
733: #define ZEND_INTERNAL_FUNCTION 1
734: #define ZEND_USER_FUNCTION 2
735: #define ZEND_OVERLOADED_FUNCTION 3
736: #define ZEND_EVAL_CODE 4
737: #define ZEND_OVERLOADED_FUNCTION_TEMPORARY 5
738:
739: #define ZEND_INTERNAL_CLASS 1
740: #define ZEND_USER_CLASS 2
741:
742: #define ZEND_EVAL (1<<0)
743: #define ZEND_INCLUDE (1<<1)
744: #define ZEND_INCLUDE_ONCE (1<<2)
745: #define ZEND_REQUIRE (1<<3)
746: #define ZEND_REQUIRE_ONCE (1<<4)
747:
748: #define ZEND_CT (1<<0)
749: #define ZEND_RT (1<<1)
750:
751: /* global/local fetches */
752: #define ZEND_FETCH_GLOBAL 0x00000000
753: #define ZEND_FETCH_LOCAL 0x10000000
754: #define ZEND_FETCH_STATIC 0x20000000
755: #define ZEND_FETCH_STATIC_MEMBER 0x30000000
756: #define ZEND_FETCH_GLOBAL_LOCK 0x40000000
757: #define ZEND_FETCH_LEXICAL 0x50000000
758:
759: #define ZEND_FETCH_TYPE_MASK 0x70000000
760:
761: #define ZEND_FETCH_STANDARD 0x00000000
762: #define ZEND_FETCH_ADD_LOCK 0x08000000
763: #define ZEND_FETCH_MAKE_REF 0x04000000
764:
765: #define ZEND_ISSET 0x02000000
766: #define ZEND_ISEMPTY 0x01000000
767: #define ZEND_ISSET_ISEMPTY_MASK (ZEND_ISSET | ZEND_ISEMPTY)
768: #define ZEND_QUICK_SET 0x00800000
769:
770: #define ZEND_FETCH_ARG_MASK 0x000fffff
771:
772: #define ZEND_FE_FETCH_BYREF 1
773: #define ZEND_FE_FETCH_WITH_KEY 2
774:
775: #define ZEND_FE_RESET_VARIABLE (1<<0)
776: #define ZEND_FE_RESET_REFERENCE (1<<1)
777: #define EXT_TYPE_FREE_ON_RETURN (1<<2)
778:
779: #define ZEND_MEMBER_FUNC_CALL 1<<0
780:
781: #define ZEND_ARG_SEND_BY_REF (1<<0)
782: #define ZEND_ARG_COMPILE_TIME_BOUND (1<<1)
783: #define ZEND_ARG_SEND_FUNCTION (1<<2)
784: #define ZEND_ARG_SEND_SILENT (1<<3)
785:
786: #define ZEND_SEND_BY_VAL 0
787: #define ZEND_SEND_BY_REF 1
788: #define ZEND_SEND_PREFER_REF 2
789:
790: #define CHECK_ARG_SEND_TYPE(zf, arg_num, m1, m2) \
791: ((zf) && \
792: ((((zend_function*)(zf))->common.arg_info && \
793: arg_num <= ((zend_function*)(zf))->common.num_args) ? \
794: (((zend_function *)(zf))->common.arg_info[arg_num-1].pass_by_reference & (m1)) : \
795: (((zend_function *)(zf))->common.fn_flags & (m2))))
796:
797: #define ARG_MUST_BE_SENT_BY_REF(zf, arg_num) \
798: CHECK_ARG_SEND_TYPE(zf, arg_num, ZEND_SEND_BY_REF, ZEND_ACC_PASS_REST_BY_REFERENCE)
799:
800: #define ARG_SHOULD_BE_SENT_BY_REF(zf, arg_num) \
801: 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)
802:
803: #define ARG_MAY_BE_SENT_BY_REF(zf, arg_num) \
804: CHECK_ARG_SEND_TYPE(zf, arg_num, ZEND_SEND_PREFER_REF, ZEND_ACC_PASS_REST_PREFER_REF)
805:
806: #define ZEND_RETURN_VAL 0
807: #define ZEND_RETURN_REF 1
808:
809:
810: #define ZEND_RETURNS_FUNCTION 1<<0
811: #define ZEND_RETURNS_NEW 1<<1
812:
813: END_EXTERN_C()
814:
815: #define ZEND_CLONE_FUNC_NAME "__clone"
816: #define ZEND_CONSTRUCTOR_FUNC_NAME "__construct"
817: #define ZEND_DESTRUCTOR_FUNC_NAME "__destruct"
818: #define ZEND_GET_FUNC_NAME "__get"
819: #define ZEND_SET_FUNC_NAME "__set"
820: #define ZEND_UNSET_FUNC_NAME "__unset"
821: #define ZEND_ISSET_FUNC_NAME "__isset"
822: #define ZEND_CALL_FUNC_NAME "__call"
823: #define ZEND_CALLSTATIC_FUNC_NAME "__callstatic"
824: #define ZEND_TOSTRING_FUNC_NAME "__tostring"
825: #define ZEND_AUTOLOAD_FUNC_NAME "__autoload"
826:
827: /* The following constants may be combined in CG(compiler_options)
828: * to change the default compiler behavior */
829:
830: /* generate extended debug information */
831: #define ZEND_COMPILE_EXTENDED_INFO (1<<0)
832:
833: /* call op_array handler of extendions */
834: #define ZEND_COMPILE_HANDLE_OP_ARRAY (1<<1)
835:
836: /* generate ZEND_DO_FCALL_BY_NAME for internal functions instead of ZEND_DO_FCALL */
837: #define ZEND_COMPILE_IGNORE_INTERNAL_FUNCTIONS (1<<2)
838:
839: /* don't perform early binding for classes inherited form internal ones;
840: * in namespaces assume that internal class that doesn't exist at compile-time
841: * may apper in run-time */
842: #define ZEND_COMPILE_IGNORE_INTERNAL_CLASSES (1<<3)
843:
844: /* generate ZEND_DECLARE_INHERITED_CLASS_DELAYED opcode to delay early binding */
845: #define ZEND_COMPILE_DELAYED_BINDING (1<<4)
846:
847: /* disable constant substitution at compile-time */
848: #define ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION (1<<5)
849:
850: /* The default value for CG(compiler_options) */
851: #define ZEND_COMPILE_DEFAULT ZEND_COMPILE_HANDLE_OP_ARRAY
852:
853: /* The default value for CG(compiler_options) during eval() */
854: #define ZEND_COMPILE_DEFAULT_FOR_EVAL 0
855:
856: #endif /* ZEND_COMPILE_H */
857:
858: /*
859: * Local variables:
860: * tab-width: 4
861: * c-basic-offset: 4
862: * indent-tabs-mode: t
863: * End:
864: */
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