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573b460 @andigutmans Zend Library
andigutmans authored
1 /*
2 +----------------------------------------------------------------------+
3 | Zend Engine |
4 +----------------------------------------------------------------------+
d1dded8 MFH: Bump copyright year, 2 of 2.
Sebastian Bergmann authored
5 | Copyright (c) 1998-2008 Zend Technologies Ltd. (http://www.zend.com) |
573b460 @andigutmans Zend Library
andigutmans authored
6 +----------------------------------------------------------------------+
d863d52 Update headers.
Sebastian Bergmann authored
7 | This source file is subject to version 2.00 of the Zend license, |
b5b1117 @zsuraski License update
zsuraski authored
8 | that is bundled with this package in the file LICENSE, and is |
f68c7ff updating license information in the headers.
James Cox authored
9 | available through the world-wide-web at the following url: |
d863d52 Update headers.
Sebastian Bergmann authored
10 | http://www.zend.com/license/2_00.txt. |
b5b1117 @zsuraski License update
zsuraski authored
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. |
573b460 @andigutmans Zend Library
andigutmans authored
14 +----------------------------------------------------------------------+
15 | Authors: Andi Gutmans <andi@zend.com> |
16 | Zeev Suraski <zeev@zend.com> |
17 +----------------------------------------------------------------------+
18 */
19
333406b - Added some missing CVS $Id$ tags, headers and footers.
foobar authored
20 /* $Id$ */
b5b1117 @zsuraski License update
zsuraski authored
21
a617217 Replace macros which begin with an underscore through an appropiately
Sascha Schumann authored
22 #ifndef ZEND_EXECUTE_H
23 #define ZEND_EXECUTE_H
573b460 @andigutmans Zend Library
andigutmans authored
24
25 #include "zend_compile.h"
26 #include "zend_hash.h"
51b9245 @andigutmans - More object junk
andigutmans authored
27 #include "zend_operators.h"
637a404 - MFH as discussed
Marcus Boerger authored
28 #include "zend_variables.h"
573b460 @andigutmans Zend Library
andigutmans authored
29
1250c43 @zsuraski * Add struct name to all typedef's so that they can be debugged with MSV...
zsuraski authored
30 typedef union _temp_variable {
573b460 @andigutmans Zend Library
andigutmans authored
31 zval tmp_var;
4fff038 @andigutmans - Changed Ts{}.var to Ts{}.var.ptr_ptr.
andigutmans authored
32 struct {
33 zval **ptr_ptr;
b56fd46 @andigutmans - First part of the patch which makes reads use ptr and not ptr_ptr.
andigutmans authored
34 zval *ptr;
3a42bab @zsuraski Fix behavior of return-by-reference functions. Remove erroneous warning...
zsuraski authored
35 zend_bool fcall_returned_reference;
4fff038 @andigutmans - Changed Ts{}.var to Ts{}.var.ptr_ptr.
andigutmans authored
36 } var;
21f0964 @andigutmans - Hopefully fix bug #26696.
andigutmans authored
37 struct {
d9252aa @andigutmans - Fix for bug #29707
andigutmans authored
38 zval **ptr_ptr;
39 zval *ptr;
40 zend_bool fcall_returned_reference;
21f0964 @andigutmans - Hopefully fix bug #26696.
andigutmans authored
41 zval *str;
42 zend_uint offset;
43 } str_offset;
e470e22 - Fixed bug #35106 (nested foreach fails when array variable has a refer...
Dmitry Stogov authored
44 struct {
45 zval **ptr_ptr;
46 zval *ptr;
47 zend_bool fcall_returned_reference;
48 HashPointer fe_pos;
49 } fe;
e94e3e1 @zsuraski Some cleanup
zsuraski authored
50 zend_class_entry *class_entry;
573b460 @andigutmans Zend Library
andigutmans authored
51 } temp_variable;
52
53
0450ab9 @zsuraski MFZE1 (Expose more C++ APIs)
zsuraski authored
54 BEGIN_EXTERN_C()
2c254ba @zsuraski Get rid of ELS_*(), and use TSRMLS_*() instead.
zsuraski authored
55 ZEND_API extern void (*zend_execute)(zend_op_array *op_array TSRMLS_DC);
2c44fab - Ported the zend_execute_internal hook to ZendEngine2.
Derick Rethans authored
56 ZEND_API extern void (*zend_execute_internal)(zend_execute_data *execute_data_ptr, int return_value_used TSRMLS_DC);
573b460 @andigutmans Zend Library
andigutmans authored
57
b4f3b9d @zsuraski Redesigned thread safety mechanism - nua nua
zsuraski authored
58 void init_executor(TSRMLS_D);
2c254ba @zsuraski Get rid of ELS_*(), and use TSRMLS_*() instead.
zsuraski authored
59 void shutdown_executor(TSRMLS_D);
0cd2da0 - Execute destructors earlier (Florian Schaper, fschaper at intux org)
Marcus Boerger authored
60 void shutdown_destructors(TSRMLS_D);
2c254ba @zsuraski Get rid of ELS_*(), and use TSRMLS_*() instead.
zsuraski authored
61 ZEND_API void execute(zend_op_array *op_array TSRMLS_DC);
2c44fab - Ported the zend_execute_internal hook to ZendEngine2.
Derick Rethans authored
62 ZEND_API void execute_internal(zend_execute_data *execute_data_ptr, int return_value_used TSRMLS_DC);
573b460 @andigutmans Zend Library
andigutmans authored
63 ZEND_API int zend_is_true(zval *op);
3df0288 Improove debug capabilities
Marcus Boerger authored
64 #define safe_free_zval_ptr(p) safe_free_zval_ptr_rel(p ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
65 static inline void safe_free_zval_ptr_rel(zval *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
df74f1d Add optional support for C0x inline semantics.
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66 {
2c254ba @zsuraski Get rid of ELS_*(), and use TSRMLS_*() instead.
zsuraski authored
67 TSRMLS_FETCH();
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68
69 if (p!=EG(uninitialized_zval_ptr)) {
3df0288 Improove debug capabilities
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70 FREE_ZVAL_REL(p);
df74f1d Add optional support for C0x inline semantics.
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71 }
72 }
6c810b0 Improved memory usage by movig constants to read only memory. (Dmitry, P...
Dmitry Stogov authored
73 ZEND_API int zend_lookup_class(const char *name, int name_length, zend_class_entry ***ce TSRMLS_DC);
74 ZEND_API int zend_lookup_class_ex(const char *name, int name_length, int use_autoload, zend_class_entry ***ce TSRMLS_DC);
b4f3b9d @zsuraski Redesigned thread safety mechanism - nua nua
zsuraski authored
75 ZEND_API int zend_eval_string(char *str, zval *retval_ptr, char *string_name TSRMLS_DC);
d3473d1 - Provide a unified way to display uncaught exceptions, which shows
Marcus Boerger authored
76 ZEND_API int zend_eval_string_ex(char *str, zval *retval_ptr, char *string_name, int handle_exceptions TSRMLS_DC);
6608f07 @smalyshev Mega-commit: Enter the new object model
smalyshev authored
77
99771d9 Remove --enable-c9x-inline option. We now use a syntax which is compatib...
Sascha Schumann authored
78 static inline int i_zend_is_true(zval *op)
df74f1d Add optional support for C0x inline semantics.
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79 {
80 int result;
81
637a404 - MFH as discussed
Marcus Boerger authored
82 switch (Z_TYPE_P(op)) {
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83 case IS_NULL:
84 result = 0;
85 break;
86 case IS_LONG:
87 case IS_BOOL:
88 case IS_RESOURCE:
637a404 - MFH as discussed
Marcus Boerger authored
89 result = (Z_LVAL_P(op)?1:0);
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90 break;
91 case IS_DOUBLE:
637a404 - MFH as discussed
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92 result = (Z_DVAL_P(op) ? 1 : 0);
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93 break;
94 case IS_STRING:
637a404 - MFH as discussed
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95 if (Z_STRLEN_P(op) == 0
96 || (Z_STRLEN_P(op)==1 && Z_STRVAL_P(op)[0]=='0')) {
df74f1d Add optional support for C0x inline semantics.
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97 result = 0;
98 } else {
99 result = 1;
100 }
101 break;
102 case IS_ARRAY:
637a404 - MFH as discussed
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103 result = (zend_hash_num_elements(Z_ARRVAL_P(op))?1:0);
df74f1d Add optional support for C0x inline semantics.
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104 break;
105 case IS_OBJECT:
97e7ce7 @smalyshev fix the fix
smalyshev authored
106 if(IS_ZEND_STD_OBJECT(*op)) {
f9c6520 @smalyshev Fix object true value: if we are in compat mode and it's Zend object -
smalyshev authored
107 TSRMLS_FETCH();
9d1f2f3 Fixed bug #34199 (if($obj)/if(!$obj) inconsistency)
Dmitry Stogov authored
108
109 if (Z_OBJ_HT_P(op)->cast_object) {
110 zval tmp;
637a404 - MFH as discussed
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111 if (Z_OBJ_HT_P(op)->cast_object(op, &tmp, IS_BOOL TSRMLS_CC) == SUCCESS) {
9d1f2f3 Fixed bug #34199 (if($obj)/if(!$obj) inconsistency)
Dmitry Stogov authored
112 result = Z_LVAL(tmp);
113 break;
114 }
115 } else if (Z_OBJ_HT_P(op)->get) {
116 zval *tmp = Z_OBJ_HT_P(op)->get(op TSRMLS_CC);
117 if(Z_TYPE_P(tmp) != IS_OBJECT) {
118 /* for safety - avoid loop */
119 convert_to_boolean(tmp);
120 result = Z_LVAL_P(tmp);
121 zval_ptr_dtor(&tmp);
122 break;
123 }
124 }
51d4958 @zsuraski Restore ZE1 compatibility mode (Zend Engine part - the modules patches
zsuraski authored
125
126 if(EG(ze1_compatibility_mode)) {
127 result = (zend_hash_num_elements(Z_OBJPROP_P(op))?1:0);
128 } else {
129 result = 1;
130 }
131 } else {
132 result = 1;
f9c6520 @smalyshev Fix object true value: if we are in compat mode and it's Zend object -
smalyshev authored
133 }
df74f1d Add optional support for C0x inline semantics.
Sascha Schumann authored
134 break;
135 default:
136 result = 0;
137 break;
138 }
139 return result;
140 }
141
d76cf1d @zsuraski More TSRMLS_FETCH work
zsuraski authored
142 ZEND_API int zval_update_constant(zval **pp, void *arg TSRMLS_DC);
dcf2490 @johannes - MFH: Fix #38465 (ReflectionParameter fails if default value is an acce...
johannes authored
143 ZEND_API int zval_update_constant_ex(zval **pp, void *arg, zend_class_entry *scope TSRMLS_DC);
573b460 @andigutmans Zend Library
andigutmans authored
144
39a7f4c @zsuraski This patch is a go. Not fully optimized yet, but working properly.
zsuraski authored
145 /* dedicated Zend executor functions - do not use! */
0b68251 Changed EG(argument_stack) implementation.
Dmitry Stogov authored
146 #define ZEND_VM_STACK_PAGE_SIZE (64 * 1024)
147
148 struct _zend_vm_stack {
149 void **top;
150 void **end;
151 zend_vm_stack prev;
152 void *elements[1];
153 };
154
155 #define ZEND_VM_STACK_GROW_IF_NEEDED(count) \
156 do { \
157 if (UNEXPECTED(count > \
158 EG(argument_stack)->end - EG(argument_stack)->top)) { \
159 zend_vm_stack_extend(count TSRMLS_CC); \
160 } \
161 } while (0)
162
163 static inline zend_vm_stack zend_vm_stack_new_page(int count) {
164 zend_vm_stack page = emalloc(sizeof(*page)+sizeof(page->elements[0])*(count-1));
165
166 page->top = page->elements;
167 page->end = page->elements + count;
168 page->prev = NULL;
169 return page;
170 }
171
172 static inline void zend_vm_stack_init(TSRMLS_D)
173 {
174 EG(argument_stack) = zend_vm_stack_new_page(ZEND_VM_STACK_PAGE_SIZE);
175 }
176
177 static inline void zend_vm_stack_destroy(TSRMLS_D)
178 {
179 zend_vm_stack stack = EG(argument_stack);
180
181 while (stack != NULL) {
182 zend_vm_stack p = stack->prev;
183 efree(stack);
184 stack = p;
185 }
186 }
187
188 static inline void zend_vm_stack_extend(int count TSRMLS_DC)
189 {
190 zend_vm_stack p = zend_vm_stack_new_page(count >= ZEND_VM_STACK_PAGE_SIZE ? count : ZEND_VM_STACK_PAGE_SIZE);
191 p->prev = EG(argument_stack);
192 EG(argument_stack) = p;
193 }
194
195 static inline void **zend_vm_stack_top(TSRMLS_D)
196 {
197 return EG(argument_stack)->top;
198 }
199
200 static inline void zend_vm_stack_push(void *ptr TSRMLS_DC)
201 {
202 ZEND_VM_STACK_GROW_IF_NEEDED(1);
203 *(EG(argument_stack)->top++) = ptr;
204 }
205
206 static inline void zend_vm_stack_push_nocheck(void *ptr TSRMLS_DC)
207 {
208 *(EG(argument_stack)->top++) = ptr;
209 }
210
211 static inline void *zend_vm_stack_pop(TSRMLS_D)
212 {
213 void *el = *(--EG(argument_stack)->top);
214
215 if (UNEXPECTED(EG(argument_stack)->top == EG(argument_stack)->elements)) {
216 zend_vm_stack p = EG(argument_stack);
217 EG(argument_stack) = p->prev;
218 efree(p);
219 }
220 return el;
221 }
222
223 static inline void *zend_vm_stack_alloc(size_t size TSRMLS_DC)
224 {
225 void *ret;
226
227 size = (size + (sizeof(void*) - 1)) / sizeof(void*);
228
229 ZEND_VM_STACK_GROW_IF_NEEDED(size);
230 ret = EG(argument_stack)->top;
231 EG(argument_stack)->top += size;
232 return ret;
233 }
234
235 static inline void zend_vm_stack_free(void *ptr TSRMLS_DC)
236 {
237 if (UNEXPECTED(EG(argument_stack)->elements == ptr)) {
238 zend_vm_stack p = EG(argument_stack);
239
240 EG(argument_stack) = p->prev;
241 efree(p);
242 } else {
243 EG(argument_stack)->top = ptr;
244 }
245 }
246
247 static inline void** zend_vm_stack_push_args(int count TSRMLS_DC)
248 {
249
250 if (UNEXPECTED(EG(argument_stack)->top - EG(argument_stack)->elements < count) ||
251 UNEXPECTED(EG(argument_stack)->top == EG(argument_stack)->end)) {
252 zend_vm_stack p = EG(argument_stack);
253
254 zend_vm_stack_extend(count + 1 TSRMLS_CC);
255
256 EG(argument_stack)->top += count;
257 *(EG(argument_stack)->top) = (void*)(zend_uintptr_t)count;
258 while (count-- > 0) {
259 void *data = *(--p->top);
260
261 if (UNEXPECTED(p->top == p->elements)) {
262 zend_vm_stack r = p;
263
264 EG(argument_stack)->prev = p->prev;
265 p = p->prev;
266 efree(r);
267 }
268 *(EG(argument_stack)->elements + count) = data;
269 }
270 return EG(argument_stack)->top++;
271 }
272 *(EG(argument_stack)->top) = (void*)(zend_uintptr_t)count;
273 return EG(argument_stack)->top++;
274 }
275
276 static inline void zend_vm_stack_clear_multiple(TSRMLS_D)
df74f1d Add optional support for C0x inline semantics.
Sascha Schumann authored
277 {
0b68251 Changed EG(argument_stack) implementation.
Dmitry Stogov authored
278 void **p = EG(argument_stack)->top - 1;
e1814f0 WIN64 support
Dmitry Stogov authored
279 int delete_count = (int)(zend_uintptr_t) *p;
df74f1d Add optional support for C0x inline semantics.
Sascha Schumann authored
280
281 while (--delete_count>=0) {
8df40bd Keeping consistent arg_stack during arguments freeing (Exception from de...
Dmitry Stogov authored
282 zval *q = *(zval **)(--p);
283 *p = NULL;
284 zval_ptr_dtor(&q);
df74f1d Add optional support for C0x inline semantics.
Sascha Schumann authored
285 }
0b68251 Changed EG(argument_stack) implementation.
Dmitry Stogov authored
286 zend_vm_stack_free(p TSRMLS_CC);
df74f1d Add optional support for C0x inline semantics.
Sascha Schumann authored
287 }
288
0b68251 Changed EG(argument_stack) implementation.
Dmitry Stogov authored
289 static inline zval** zend_vm_stack_get_arg(int requested_arg TSRMLS_DC)
df74f1d Add optional support for C0x inline semantics.
Sascha Schumann authored
290 {
0b68251 Changed EG(argument_stack) implementation.
Dmitry Stogov authored
291 void **p = EG(current_execute_data)->prev_execute_data->function_state.arguments;
e1814f0 WIN64 support
Dmitry Stogov authored
292 int arg_count = (int)(zend_uintptr_t) *p;
df74f1d Add optional support for C0x inline semantics.
Sascha Schumann authored
293
0b68251 Changed EG(argument_stack) implementation.
Dmitry Stogov authored
294 if (UNEXPECTED(requested_arg > arg_count)) {
295 return NULL;
df74f1d Add optional support for C0x inline semantics.
Sascha Schumann authored
296 }
0b68251 Changed EG(argument_stack) implementation.
Dmitry Stogov authored
297 return (zval**)p - arg_count + requested_arg - 1;
df74f1d Add optional support for C0x inline semantics.
Sascha Schumann authored
298 }
39a7f4c @zsuraski This patch is a go. Not fully optimized yet, but working properly.
zsuraski authored
299
b4f3b9d @zsuraski Redesigned thread safety mechanism - nua nua
zsuraski authored
300 void execute_new_code(TSRMLS_D);
573b460 @andigutmans Zend Library
andigutmans authored
301
302
303 /* services */
09e7647 Improve error message
Marcus Boerger authored
304 ZEND_API char *get_active_class_name(char **space TSRMLS_DC);
4187439 @zsuraski More TSRMLS_FETCH work
zsuraski authored
305 ZEND_API char *get_active_function_name(TSRMLS_D);
2c254ba @zsuraski Get rid of ELS_*(), and use TSRMLS_*() instead.
zsuraski authored
306 ZEND_API char *zend_get_executed_filename(TSRMLS_D);
307 ZEND_API uint zend_get_executed_lineno(TSRMLS_D);
4187439 @zsuraski More TSRMLS_FETCH work
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308 ZEND_API zend_bool zend_is_executing(TSRMLS_D);
573b460 @andigutmans Zend Library
andigutmans authored
309
848e51f @zsuraski Expose all timeout functions
zsuraski authored
310 ZEND_API void zend_set_timeout(long seconds);
4187439 @zsuraski More TSRMLS_FETCH work
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311 ZEND_API void zend_unset_timeout(TSRMLS_D);
b72a273 @andigutmans - Forgot ZEND_API
andigutmans authored
312 ZEND_API void zend_timeout(int dummy);
6c810b0 Improved memory usage by movig constants to read only memory. (Dmitry, P...
Dmitry Stogov authored
313 ZEND_API zend_class_entry *zend_fetch_class(const char *class_name, uint class_name_len, int fetch_type TSRMLS_DC);
c5d8422 @zsuraski Reinstate early-binding for classes.
zsuraski authored
314 void zend_verify_abstract_class(zend_class_entry *ce TSRMLS_DC);
84eb48f @zsuraski Ok, this time here's some real Win32 system programming :)
zsuraski authored
315
ef0bd3d @zsuraski - Move timeout code to Zend
zsuraski authored
316 #ifdef ZEND_WIN32
226c56f MFH: Fixed compiler warnings
Jani Taskinen authored
317 void zend_init_timeout_thread(void);
318 void zend_shutdown_timeout_thread(void);
84eb48f @zsuraski Ok, this time here's some real Win32 system programming :)
zsuraski authored
319 #define WM_REGISTER_ZEND_TIMEOUT (WM_USER+1)
320 #define WM_UNREGISTER_ZEND_TIMEOUT (WM_USER+2)
ef0bd3d @zsuraski - Move timeout code to Zend
zsuraski authored
321 #endif
322
573b460 @andigutmans Zend Library
andigutmans authored
323 #define zendi_zval_copy_ctor(p) zval_copy_ctor(&(p))
324 #define zendi_zval_dtor(p) zval_dtor(&(p))
325
326 #define active_opline (*EG(opline_ptr))
327
e8214a3 @andigutmans - Commit Marcus' cleanup of abstract and static inheritance and improve
andigutmans authored
328 /* The following tries to resolve the classname of a zval of type object.
329 * Since it is slow it should be only used in error messages.
330 */
637a404 - MFH as discussed
Marcus Boerger authored
331 #define Z_OBJ_CLASS_NAME_P(zval) ((zval) && Z_TYPE_P(zval) == IS_OBJECT && Z_OBJ_HT_P(zval)->get_class_entry != NULL && Z_OBJ_HT_P(zval)->get_class_entry(zval TSRMLS_CC) ? Z_OBJ_HT_P(zval)->get_class_entry(zval TSRMLS_CC)->name : "")
e8214a3 @andigutmans - Commit Marcus' cleanup of abstract and static inheritance and improve
andigutmans authored
332
8838c0f @andigutmans - Two new API calls for Derick (retreive CV name and value) by Dmitry
andigutmans authored
333 ZEND_API zval** zend_get_compiled_variable_value(zend_execute_data *execute_data_ptr, zend_uint var);
334
84b96e9 Fix so that extensions like xdebug, can overload opcodes in all executio...
Dmitry Stogov authored
335 #define ZEND_USER_OPCODE_CONTINUE 0 /* execute next opcode */
336 #define ZEND_USER_OPCODE_RETURN 1 /* exit from executor (return from function) */
337 #define ZEND_USER_OPCODE_DISPATCH 2 /* call original opcode handler */
338
3c1a774 USER_OPCODE API is improvet.
Dmitry Stogov authored
339 #define ZEND_USER_OPCODE_DISPATCH_TO 0x100 /* call original handler of returned opcode */
340
84b96e9 Fix so that extensions like xdebug, can overload opcodes in all executio...
Dmitry Stogov authored
341 ZEND_API int zend_set_user_opcode_handler(zend_uchar opcode, opcode_handler_t handler);
342 ZEND_API opcode_handler_t zend_get_user_opcode_handler(zend_uchar opcode);
343
87c9e68 @smalyshev export zval getters
smalyshev authored
344 /* former zend_execute_locks.h */
345 typedef struct _zend_free_op {
346 zval* var;
347 /* int is_var; */
348 } zend_free_op;
349
999998e @smalyshev rename to zend_
smalyshev authored
350 ZEND_API zval *zend_get_zval_ptr(znode *node, temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC);
351 ZEND_API zval **zend_get_zval_ptr_ptr(znode *node, temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC);
87c9e68 @smalyshev export zval getters
smalyshev authored
352
61b9ded Export zend_do_fcall() helper from executor
Dmitry Stogov authored
353 ZEND_API int zend_do_fcall(ZEND_OPCODE_HANDLER_ARGS);
87c9e68 @smalyshev export zval getters
smalyshev authored
354
0450ab9 @zsuraski MFZE1 (Expose more C++ APIs)
zsuraski authored
355 END_EXTERN_C()
356
a617217 Replace macros which begin with an underscore through an appropiately
Sascha Schumann authored
357 #endif /* ZEND_EXECUTE_H */
333406b - Added some missing CVS $Id$ tags, headers and footers.
foobar authored
358
359 /*
360 * Local variables:
361 * tab-width: 4
362 * c-basic-offset: 4
363 * indent-tabs-mode: t
364 * End:
365 */
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