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php5  5.3.10
Defines | Typedefs | Functions | Variables
zend_execute.c File Reference
#include <stdio.h>
#include <signal.h>
#include "zend.h"
#include "zend_compile.h"
#include "zend_execute.h"
#include "zend_API.h"
#include "zend_ptr_stack.h"
#include "zend_constants.h"
#include "zend_extensions.h"
#include "zend_ini.h"
#include "zend_exceptions.h"
#include "zend_interfaces.h"
#include "zend_closures.h"
#include "zend_vm.h"
#include "tsrm_virtual_cwd.h"
#include "zend_vm_execute.h"

Go to the source code of this file.

Defines

#define ZEND_INTENSIVE_DEBUGGING   0
#define _CONST_CODE   0
#define _TMP_CODE   1
#define _VAR_CODE   2
#define _UNUSED_CODE   3
#define _CV_CODE   4
#define get_zval_ptr(node, Ts, should_free, type)   _get_zval_ptr(node, Ts, should_free, type TSRMLS_CC)
#define get_zval_ptr_ptr(node, Ts, should_free, type)   _get_zval_ptr_ptr(node, Ts, should_free, type TSRMLS_CC)
#define get_obj_zval_ptr(node, Ts, should_free, type)   _get_obj_zval_ptr(node, Ts, should_free, type TSRMLS_CC)
#define get_obj_zval_ptr_ptr(node, Ts, should_free, type)   _get_obj_zval_ptr_ptr(node, Ts, should_free, type TSRMLS_CC)
#define RETURN_VALUE_USED(opline)   (!((opline)->result.u.EA.type & EXT_TYPE_UNUSED))
#define EX_T(offset)   (*(temp_variable *)((char *) EX(Ts) + offset))
#define T(offset)   (*(temp_variable *)((char *) Ts + offset))
#define TEMP_VAR_STACK_LIMIT   2000
#define PZVAL_UNLOCK(z, f)   zend_pzval_unlock_func(z, f, 1 TSRMLS_CC)
#define PZVAL_UNLOCK_EX(z, f, u)   zend_pzval_unlock_func(z, f, u TSRMLS_CC)
#define PZVAL_UNLOCK_FREE(z)   zend_pzval_unlock_free_func(z TSRMLS_CC)
#define PZVAL_LOCK(z)   Z_ADDREF_P((z))
#define RETURN_VALUE_UNUSED(pzn)   (((pzn)->u.EA.type & EXT_TYPE_UNUSED))
#define SELECTIVE_PZVAL_LOCK(pzv, pzn)   if (!RETURN_VALUE_UNUSED(pzn)) { PZVAL_LOCK(pzv); }
#define AI_USE_PTR(ai)
#define AI_SET_PTR(ai, val)
#define FREE_OP(should_free)
#define FREE_OP_IF_VAR(should_free)
#define FREE_OP_VAR_PTR(should_free)
#define TMP_FREE(z)   (zval*)(((zend_uintptr_t)(z)) | 1L)
#define IS_TMP_FREE(should_free)   ((zend_uintptr_t)should_free.var & 1L)
#define INIT_PZVAL_COPY(z, v)
#define MAKE_REAL_ZVAL_PTR(val)
#define CV_OF(i)   (EG(current_execute_data)->CVs[i])
#define CV_DEF_OF(i)   (EG(active_op_array)->vars[i])
#define CTOR_CALL_BIT   0x1
#define CTOR_USED_BIT   0x2
#define IS_CTOR_CALL(ce)   (((zend_uintptr_t)(ce)) & CTOR_CALL_BIT)
#define IS_CTOR_USED(ce)   (((zend_uintptr_t)(ce)) & CTOR_USED_BIT)
#define ENCODE_CTOR(ce, used)   ((zend_class_entry*)(((zend_uintptr_t)(ce)) | CTOR_CALL_BIT | ((used) ? CTOR_USED_BIT : 0)))
#define DECODE_CTOR(ce)   ((zend_class_entry*)(((zend_uintptr_t)(ce)) & ~(CTOR_CALL_BIT|CTOR_USED_BIT)))
#define CHECK_SYMBOL_TABLES()
#define ZEND_VM_NEXT_OPCODE()
#define ZEND_VM_SET_OPCODE(new_op)
#define ZEND_VM_JMP(new_op)
#define ZEND_VM_INC_OPCODE()   EX(opline)++

Typedefs

typedef int(* incdec_t )(zval *)

Functions

static void zend_extension_statement_handler (const zend_extension *extension, zend_op_array *op_array TSRMLS_DC)
static void zend_extension_fcall_begin_handler (const zend_extension *extension, zend_op_array *op_array TSRMLS_DC)
static void zend_extension_fcall_end_handler (const zend_extension *extension, zend_op_array *op_array TSRMLS_DC)
static zend_always_inline void zend_pzval_unlock_func (zval *z, zend_free_op *should_free, int unref TSRMLS_DC)
static zend_always_inline void zend_pzval_unlock_free_func (zval *z TSRMLS_DC)
ZEND_API zval ** zend_get_compiled_variable_value (const zend_execute_data *execute_data_ptr, zend_uint var)
static zend_always_inline zval * _get_zval_ptr_tmp (const znode *node, const temp_variable *Ts, zend_free_op *should_free TSRMLS_DC)
static zval * _get_zval_ptr_var_string_offset (const znode *node, const temp_variable *Ts, zend_free_op *should_free TSRMLS_DC)
static zend_always_inline zval * _get_zval_ptr_var (const znode *node, const temp_variable *Ts, zend_free_op *should_free TSRMLS_DC)
static zval ** _get_zval_cv_lookup (zval ***ptr, zend_uint var, int type TSRMLS_DC)
static zend_always_inline zval * _get_zval_ptr_cv (const znode *node, const temp_variable *Ts, int type TSRMLS_DC)
static zval * _get_zval_ptr (znode *node, const temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC)
static zend_always_inline zval ** _get_zval_ptr_ptr_var (const znode *node, const temp_variable *Ts, zend_free_op *should_free TSRMLS_DC)
static zend_always_inline zval ** _get_zval_ptr_ptr_cv (const znode *node, const temp_variable *Ts, int type TSRMLS_DC)
static zval ** _get_zval_ptr_ptr (const znode *node, const temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC)
static zend_always_inline zval * _get_obj_zval_ptr_unused (TSRMLS_D)
static zval ** _get_obj_zval_ptr_ptr (const znode *op, const temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC)
static zend_always_inline zval ** _get_obj_zval_ptr_ptr_unused (TSRMLS_D)
static zval * _get_obj_zval_ptr (znode *op, const temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC)
static void zend_switch_free (temp_variable *T, int extended_value TSRMLS_DC)
static void zend_assign_to_variable_reference (zval **variable_ptr_ptr, zval **value_ptr_ptr TSRMLS_DC)
static void make_real_object (zval **object_ptr TSRMLS_DC)
static char * zend_verify_arg_class_kind (const zend_arg_info *cur_arg_info, ulong fetch_type, const char **class_name, zend_class_entry **pce TSRMLS_DC)
static int zend_verify_arg_error (const zend_function *zf, zend_uint arg_num, const zend_arg_info *cur_arg_info, const char *need_msg, const char *need_kind, const char *given_msg, char *given_kind TSRMLS_DC)
static int zend_verify_arg_type (zend_function *zf, zend_uint arg_num, zval *arg, ulong fetch_type TSRMLS_DC)
static void zend_assign_to_object (znode *result, zval **object_ptr, zval *property_name, znode *value_op, const temp_variable *Ts, int opcode TSRMLS_DC)
static int zend_assign_to_string_offset (const temp_variable *T, const zval *value, int value_type TSRMLS_DC)
static zval * zend_assign_to_variable (zval **variable_ptr_ptr, zval *value, int is_tmp_var TSRMLS_DC)
static HashTablezend_get_target_symbol_table (const zend_op *opline, const temp_variable *Ts, int type, const zval *variable TSRMLS_DC)
static zval ** zend_fetch_dimension_address_inner (HashTable *ht, const zval *dim, int type TSRMLS_DC)
static void zend_fetch_dimension_address (temp_variable *result, zval **container_ptr, zval *dim, int dim_is_tmp_var, int type TSRMLS_DC)
static void zend_fetch_dimension_address_read (temp_variable *result, zval **container_ptr, zval *dim, int dim_is_tmp_var, int type TSRMLS_DC)
static void zend_fetch_property_address (temp_variable *result, zval **container_ptr, zval *prop_ptr, int type TSRMLS_DC)
static zend_brk_cont_elementzend_brk_cont (const zval *nest_levels_zval, int array_offset, const zend_op_array *op_array, const temp_variable *Ts TSRMLS_DC)
ZEND_API void execute_internal (zend_execute_data *execute_data_ptr, int return_value_used TSRMLS_DC)
ZEND_API int zend_set_user_opcode_handler (zend_uchar opcode, user_opcode_handler_t handler)
ZEND_API user_opcode_handler_t zend_get_user_opcode_handler (zend_uchar opcode)
ZEND_API zval * zend_get_zval_ptr (znode *node, const temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC)
ZEND_API zval ** zend_get_zval_ptr_ptr (const znode *node, const temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC)

Variables

ZEND_API opcode_handler_t * zend_opcode_handlers

Define Documentation

#define _CONST_CODE   0

Definition at line 43 of file zend_execute.c.

#define _CV_CODE   4

Definition at line 47 of file zend_execute.c.

#define _TMP_CODE   1

Definition at line 44 of file zend_execute.c.

#define _UNUSED_CODE   3

Definition at line 46 of file zend_execute.c.

#define _VAR_CODE   2

Definition at line 45 of file zend_execute.c.

#define AI_SET_PTR (   ai,
  val 
)
Value:
(ai).ptr = (val);                  \
       (ai).ptr_ptr = &((ai).ptr);

Definition at line 110 of file zend_execute.c.

#define AI_USE_PTR (   ai)
Value:
if ((ai).ptr_ptr) { \
              (ai).ptr = *((ai).ptr_ptr); \
              (ai).ptr_ptr = &((ai).ptr); \
       } else { \
              (ai).ptr = NULL; \
       }

Definition at line 102 of file zend_execute.c.

#define CHECK_SYMBOL_TABLES ( )

Definition at line 1265 of file zend_execute.c.

#define CTOR_CALL_BIT   0x1

Definition at line 159 of file zend_execute.c.

#define CTOR_USED_BIT   0x2

Definition at line 160 of file zend_execute.c.

#define CV_DEF_OF (   i)    (EG(active_op_array)->vars[i])

Definition at line 157 of file zend_execute.c.

#define CV_OF (   i)    (EG(current_execute_data)->CVs[i])

Definition at line 156 of file zend_execute.c.

#define DECODE_CTOR (   ce)    ((zend_class_entry*)(((zend_uintptr_t)(ce)) & ~(CTOR_CALL_BIT|CTOR_USED_BIT)))

Definition at line 167 of file zend_execute.c.

#define ENCODE_CTOR (   ce,
  used 
)    ((zend_class_entry*)(((zend_uintptr_t)(ce)) | CTOR_CALL_BIT | ((used) ? CTOR_USED_BIT : 0)))

Definition at line 165 of file zend_execute.c.

#define EX_T (   offset)    (*(temp_variable *)((char *) EX(Ts) + offset))

Definition at line 63 of file zend_execute.c.

#define FREE_OP (   should_free)
Value:
if (should_free.var) { \
              if ((zend_uintptr_t)should_free.var & 1L) { \
                     zval_dtor((zval*)((zend_uintptr_t)should_free.var & ~1L)); \
              } else { \
                     zval_ptr_dtor(&should_free.var); \
              } \
       }

Definition at line 114 of file zend_execute.c.

#define FREE_OP_IF_VAR (   should_free)
Value:
if (should_free.var != NULL && (((zend_uintptr_t)should_free.var & 1L) == 0)) { \
              zval_ptr_dtor(&should_free.var); \
       }

Definition at line 123 of file zend_execute.c.

#define FREE_OP_VAR_PTR (   should_free)
Value:
if (should_free.var) { \
              zval_ptr_dtor(&should_free.var); \
       }

Definition at line 128 of file zend_execute.c.

#define get_obj_zval_ptr (   node,
  Ts,
  should_free,
  type 
)    _get_obj_zval_ptr(node, Ts, should_free, type TSRMLS_CC)

Definition at line 53 of file zend_execute.c.

#define get_obj_zval_ptr_ptr (   node,
  Ts,
  should_free,
  type 
)    _get_obj_zval_ptr_ptr(node, Ts, should_free, type TSRMLS_CC)

Definition at line 54 of file zend_execute.c.

#define get_zval_ptr (   node,
  Ts,
  should_free,
  type 
)    _get_zval_ptr(node, Ts, should_free, type TSRMLS_CC)

Definition at line 51 of file zend_execute.c.

#define get_zval_ptr_ptr (   node,
  Ts,
  should_free,
  type 
)    _get_zval_ptr_ptr(node, Ts, should_free, type TSRMLS_CC)

Definition at line 52 of file zend_execute.c.

#define INIT_PZVAL_COPY (   z,
 
)
Value:
(z)->value = (v)->value; \
       Z_TYPE_P(z) = Z_TYPE_P(v); \
       Z_SET_REFCOUNT_P(z, 1); \
       Z_UNSET_ISREF_P(z);

Definition at line 137 of file zend_execute.c.

#define IS_CTOR_CALL (   ce)    (((zend_uintptr_t)(ce)) & CTOR_CALL_BIT)

Definition at line 162 of file zend_execute.c.

#define IS_CTOR_USED (   ce)    (((zend_uintptr_t)(ce)) & CTOR_USED_BIT)

Definition at line 163 of file zend_execute.c.

#define IS_TMP_FREE (   should_free)    ((zend_uintptr_t)should_free.var & 1L)

Definition at line 135 of file zend_execute.c.

#define MAKE_REAL_ZVAL_PTR (   val)
Value:
do { \
              zval *_tmp; \
              ALLOC_ZVAL(_tmp); \
              _tmp->value = (val)->value; \
              Z_TYPE_P(_tmp) = Z_TYPE_P(val); \
              Z_SET_REFCOUNT_P(_tmp, 1); \
              Z_UNSET_ISREF_P(_tmp); \
              val = _tmp; \
       } while (0)

Definition at line 143 of file zend_execute.c.

#define PZVAL_LOCK (   z)    Z_ADDREF_P((z))

Definition at line 98 of file zend_execute.c.

#define PZVAL_UNLOCK (   z,
 
)    zend_pzval_unlock_func(z, f, 1 TSRMLS_CC)

Definition at line 95 of file zend_execute.c.

#define PZVAL_UNLOCK_EX (   z,
  f,
 
)    zend_pzval_unlock_func(z, f, u TSRMLS_CC)

Definition at line 96 of file zend_execute.c.

Definition at line 97 of file zend_execute.c.

#define RETURN_VALUE_UNUSED (   pzn)    (((pzn)->u.EA.type & EXT_TYPE_UNUSED))

Definition at line 99 of file zend_execute.c.

#define RETURN_VALUE_USED (   opline)    (!((opline)->result.u.EA.type & EXT_TYPE_UNUSED))

Definition at line 61 of file zend_execute.c.

#define SELECTIVE_PZVAL_LOCK (   pzv,
  pzn 
)    if (!RETURN_VALUE_UNUSED(pzn)) { PZVAL_LOCK(pzv); }

Definition at line 100 of file zend_execute.c.

#define T (   offset)    (*(temp_variable *)((char *) Ts + offset))

Definition at line 64 of file zend_execute.c.

#define TEMP_VAR_STACK_LIMIT   2000

Definition at line 66 of file zend_execute.c.

#define TMP_FREE (   z)    (zval*)(((zend_uintptr_t)(z)) | 1L)

Definition at line 133 of file zend_execute.c.

#define ZEND_INTENSIVE_DEBUGGING   0

Definition at line 22 of file zend_execute.c.

#define ZEND_VM_INC_OPCODE ( )    EX(opline)++

Definition at line 1292 of file zend_execute.c.

#define ZEND_VM_JMP (   new_op)
Value:
CHECK_SYMBOL_TABLES() \
       if (EXPECTED(!EG(exception))) { \
              EX(opline) = new_op; \
       } \
       ZEND_VM_CONTINUE()

Definition at line 1285 of file zend_execute.c.

#define ZEND_VM_NEXT_OPCODE ( )
Value:
CHECK_SYMBOL_TABLES() \
       EX(opline)++; \
       ZEND_VM_CONTINUE()

Definition at line 1276 of file zend_execute.c.

#define ZEND_VM_SET_OPCODE (   new_op)
Value:
CHECK_SYMBOL_TABLES() \
       EX(opline) = new_op

Definition at line 1281 of file zend_execute.c.


Typedef Documentation

typedef int(* incdec_t)(zval *)

Definition at line 49 of file zend_execute.c.


Function Documentation

static zval* _get_obj_zval_ptr ( znode op,
const temp_variable Ts,
zend_free_op should_free,
int type  TSRMLS_DC 
) [inline, static]

Definition at line 358 of file zend_execute.c.

{
       if (op->op_type == IS_UNUSED) {
              if (EXPECTED(EG(This) != NULL)) {
                     should_free->var = 0;
                     return EG(This);
              } else {
                     zend_error_noreturn(E_ERROR, "Using $this when not in object context");
              }
       }
       return get_zval_ptr(op, Ts, should_free, type);
}
static zval** _get_obj_zval_ptr_ptr ( const znode op,
const temp_variable Ts,
zend_free_op should_free,
int type  TSRMLS_DC 
) [inline, static]

Definition at line 333 of file zend_execute.c.

{
       if (op->op_type == IS_UNUSED) {
              if (EXPECTED(EG(This) != NULL)) {
                     /* this should actually never be modified, _ptr_ptr is modified only when
                        the object is empty */
                     should_free->var = 0;
                     return &EG(This);
              } else {
                     zend_error_noreturn(E_ERROR, "Using $this when not in object context");
              }
       }
       return get_zval_ptr_ptr(op, Ts, should_free, type);
}

Definition at line 348 of file zend_execute.c.

{
       if (EXPECTED(EG(This) != NULL)) {
              return &EG(This);
       } else {
              zend_error_noreturn(E_ERROR, "Using $this when not in object context");
              return NULL;
       }
}

Definition at line 323 of file zend_execute.c.

{
       if (EXPECTED(EG(This) != NULL)) {
              return EG(This);
       } else {
              zend_error_noreturn(E_ERROR, "Using $this when not in object context");
              return NULL;
       }
}

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static zval** _get_zval_cv_lookup ( zval ***  ptr,
zend_uint  var,
int type  TSRMLS_DC 
) [static]

Definition at line 218 of file zend_execute.c.

{
       zend_compiled_variable *cv = &CV_DEF_OF(var);

       if (!EG(active_symbol_table) ||
           zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
              switch (type) {
                     case BP_VAR_R:
                     case BP_VAR_UNSET:
                            zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
                            /* break missing intentionally */
                     case BP_VAR_IS:
                            return &EG(uninitialized_zval_ptr);
                            break;
                     case BP_VAR_RW:
                            zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
                            /* break missing intentionally */
                     case BP_VAR_W:
                            Z_ADDREF(EG(uninitialized_zval));
                            if (!EG(active_symbol_table)) {
                                   *ptr = (zval**)EG(current_execute_data)->CVs + (EG(active_op_array)->last_var + var);
                                   **ptr = &EG(uninitialized_zval);
                            } else {
                                   zend_hash_quick_update(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, &EG(uninitialized_zval_ptr), sizeof(zval *), (void **)ptr);
                            }
                            break;
              }
       }
       return *ptr;
}

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static zval* _get_zval_ptr ( znode node,
const temp_variable Ts,
zend_free_op should_free,
int type  TSRMLS_DC 
) [inline, static]

Definition at line 259 of file zend_execute.c.

{
/*     should_free->is_var = 0; */
       switch (node->op_type) {
              case IS_CONST:
                     should_free->var = 0;
                     return &node->u.constant;
                     break;
              case IS_TMP_VAR:
                     should_free->var = TMP_FREE(&T(node->u.var).tmp_var);
                     return &T(node->u.var).tmp_var;
                     break;
              case IS_VAR:
                     return _get_zval_ptr_var(node, Ts, should_free TSRMLS_CC);
                     break;
              case IS_UNUSED:
                     should_free->var = 0;
                     return NULL;
                     break;
              case IS_CV:
                     should_free->var = 0;
                     return _get_zval_ptr_cv(node, Ts, type TSRMLS_CC);
                     break;
              EMPTY_SWITCH_DEFAULT_CASE()
       }
       return NULL;
}

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static zend_always_inline zval* _get_zval_ptr_cv ( const znode node,
const temp_variable Ts,
int type  TSRMLS_DC 
) [static]

Definition at line 249 of file zend_execute.c.

{
       zval ***ptr = &CV_OF(node->u.var);

       if (UNEXPECTED(*ptr == NULL)) {
              return *_get_zval_cv_lookup(ptr, node->u.var, type TSRMLS_CC);
       }
       return **ptr;
}

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static zval** _get_zval_ptr_ptr ( const znode node,
const temp_variable Ts,
zend_free_op should_free,
int type  TSRMLS_DC 
) [inline, static]

Definition at line 310 of file zend_execute.c.

{
       if (node->op_type == IS_CV) {
              should_free->var = 0;
              return _get_zval_ptr_ptr_cv(node, Ts, type TSRMLS_CC);
       } else if (node->op_type == IS_VAR) {
              return _get_zval_ptr_ptr_var(node, Ts, should_free TSRMLS_CC);
       } else {
              should_free->var = 0;
              return NULL;
       }
}

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static zend_always_inline zval** _get_zval_ptr_ptr_cv ( const znode node,
const temp_variable Ts,
int type  TSRMLS_DC 
) [static]

Definition at line 300 of file zend_execute.c.

{
       zval ***ptr = &CV_OF(node->u.var);

       if (UNEXPECTED(*ptr == NULL)) {
              return _get_zval_cv_lookup(ptr, node->u.var, type TSRMLS_CC);
       }
       return *ptr;
}

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static zend_always_inline zval** _get_zval_ptr_ptr_var ( const znode node,
const temp_variable Ts,
zend_free_op *should_free  TSRMLS_DC 
) [static]

Definition at line 287 of file zend_execute.c.

{
       zval** ptr_ptr = T(node->u.var).var.ptr_ptr;

       if (EXPECTED(ptr_ptr != NULL)) {
              PZVAL_UNLOCK(*ptr_ptr, should_free);
       } else {
              /* string offset */
              PZVAL_UNLOCK(T(node->u.var).str_offset.str, should_free);
       }
       return ptr_ptr;
}
static zend_always_inline zval* _get_zval_ptr_tmp ( const znode node,
const temp_variable Ts,
zend_free_op *should_free  TSRMLS_DC 
) [static]

Definition at line 175 of file zend_execute.c.

{
       return should_free->var = &T(node->u.var).tmp_var;
}
static zend_always_inline zval* _get_zval_ptr_var ( const znode node,
const temp_variable Ts,
zend_free_op *should_free  TSRMLS_DC 
) [static]

Definition at line 207 of file zend_execute.c.

{
       zval *ptr = T(node->u.var).var.ptr;
       if (EXPECTED(ptr != NULL)) {
              PZVAL_UNLOCK(ptr, should_free);
              return ptr;
       } else {
              return _get_zval_ptr_var_string_offset(node, Ts, should_free TSRMLS_CC);
       }
}

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static zval* _get_zval_ptr_var_string_offset ( const znode node,
const temp_variable Ts,
zend_free_op *should_free  TSRMLS_DC 
) [static]

Definition at line 180 of file zend_execute.c.

{
       temp_variable *T = &T(node->u.var);
       zval *str = T->str_offset.str;
       zval *ptr;

       /* string offset */
       ALLOC_ZVAL(ptr);
       T->str_offset.ptr = ptr;
       should_free->var = ptr;

       if (T->str_offset.str->type != IS_STRING
              || ((int)T->str_offset.offset < 0)
              || (T->str_offset.str->value.str.len <= (int)T->str_offset.offset)) {
              ptr->value.str.val = STR_EMPTY_ALLOC();
              ptr->value.str.len = 0;
       } else {
              ptr->value.str.val = estrndup(str->value.str.val + T->str_offset.offset, 1);
              ptr->value.str.len = 1;
       }
       PZVAL_UNLOCK_FREE(str);
       Z_SET_REFCOUNT_P(ptr, 1);
       Z_SET_ISREF_P(ptr);
       ptr->type = IS_STRING;
       return ptr;
}

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ZEND_API void execute_internal ( zend_execute_data *  execute_data_ptr,
int return_value_used  TSRMLS_DC 
)

Definition at line 1270 of file zend_execute.c.

{
       zval **return_value_ptr = &(*(temp_variable *)((char *) execute_data_ptr->Ts + execute_data_ptr->opline->result.u.var)).var.ptr;
       ((zend_internal_function *) execute_data_ptr->function_state.function)->handler(execute_data_ptr->opline->extended_value, *return_value_ptr, execute_data_ptr->function_state.function->common.return_reference?return_value_ptr:NULL, execute_data_ptr->object, return_value_used TSRMLS_CC);
}
static void make_real_object ( zval **object_ptr  TSRMLS_DC) [inline, static]

Definition at line 429 of file zend_execute.c.

{
       if (Z_TYPE_PP(object_ptr) == IS_NULL
              || (Z_TYPE_PP(object_ptr) == IS_BOOL && Z_LVAL_PP(object_ptr) == 0)
              || (Z_TYPE_PP(object_ptr) == IS_STRING && Z_STRLEN_PP(object_ptr) == 0)
       ) {
              zend_error(E_STRICT, "Creating default object from empty value");

              SEPARATE_ZVAL_IF_NOT_REF(object_ptr);
              zval_dtor(*object_ptr);
              object_init(*object_ptr);
       }
}

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static void zend_assign_to_object ( znode result,
zval **  object_ptr,
zval *  property_name,
znode value_op,
const temp_variable Ts,
int opcode  TSRMLS_DC 
) [inline, static]

Definition at line 518 of file zend_execute.c.

{
       zval *object = *object_ptr;
       zend_free_op free_value;
       zval *value = get_zval_ptr(value_op, Ts, &free_value, BP_VAR_R);
       zval **retval = &T(result->u.var).var.ptr;

       if (Z_TYPE_P(object) != IS_OBJECT) {
              if (object == EG(error_zval_ptr)) {
                     if (!RETURN_VALUE_UNUSED(result)) {
                            *retval = EG(uninitialized_zval_ptr);
                            PZVAL_LOCK(*retval);
                     }
                     FREE_OP(free_value);
                     return;
              }
              if (Z_TYPE_P(object) == IS_NULL ||
                  (Z_TYPE_P(object) == IS_BOOL && Z_LVAL_P(object) == 0) ||
                  (Z_TYPE_P(object) == IS_STRING && Z_STRLEN_P(object) == 0)) {
                     SEPARATE_ZVAL_IF_NOT_REF(object_ptr);
                     object = *object_ptr;
                     Z_ADDREF_P(object);
                     zend_error(E_STRICT, "Creating default object from empty value");
                     if (Z_REFCOUNT_P(object) == 1) {
                            /* object was removed by error handler, nothing to assign to */
                            zval_ptr_dtor(&object);
                            if (retval) {
                                   *retval = &EG(uninitialized_zval);
                                   PZVAL_LOCK(*retval);
                            }
                            FREE_OP(free_value);
                            return;
                     }
                     Z_DELREF_P(object);
                     zval_dtor(object);
                     object_init(object);
              } else {
                     zend_error(E_WARNING, "Attempt to assign property of non-object");
                     if (!RETURN_VALUE_UNUSED(result)) {
                            *retval = EG(uninitialized_zval_ptr);
                            PZVAL_LOCK(*retval);
                     }
                     FREE_OP(free_value);
                     return;
              }
       }
       
       /* separate our value if necessary */
       if (value_op->op_type == IS_TMP_VAR) {
              zval *orig_value = value;

              ALLOC_ZVAL(value);
              *value = *orig_value;
              Z_UNSET_ISREF_P(value);
              Z_SET_REFCOUNT_P(value, 0);
       } else if (value_op->op_type == IS_CONST) {
              zval *orig_value = value;

              ALLOC_ZVAL(value);
              *value = *orig_value;
              Z_UNSET_ISREF_P(value);
              Z_SET_REFCOUNT_P(value, 0);
              zval_copy_ctor(value);
       }


       Z_ADDREF_P(value);
       if (opcode == ZEND_ASSIGN_OBJ) {
              if (!Z_OBJ_HT_P(object)->write_property) {
                     zend_error(E_WARNING, "Attempt to assign property of non-object");
                     if (!RETURN_VALUE_UNUSED(result)) {
                            *retval = EG(uninitialized_zval_ptr);
                            PZVAL_LOCK(*retval);
                     }
                     if (value_op->op_type == IS_TMP_VAR) {
                            FREE_ZVAL(value);
                     } else if (value_op->op_type == IS_CONST) {
                            zval_ptr_dtor(&value);
                     }
                     FREE_OP(free_value);
                     return;
              }
              Z_OBJ_HT_P(object)->write_property(object, property_name, value TSRMLS_CC);
       } else {
              /* Note:  property_name in this case is really the array index! */
              if (!Z_OBJ_HT_P(object)->write_dimension) {
                     zend_error_noreturn(E_ERROR, "Cannot use object as array");
              }
              Z_OBJ_HT_P(object)->write_dimension(object, property_name, value TSRMLS_CC);
       }

       if (!RETURN_VALUE_UNUSED(result) && !EG(exception)) {
              AI_SET_PTR(T(result->u.var).var, value);
              PZVAL_LOCK(value);
       }
       zval_ptr_dtor(&value);
       FREE_OP_IF_VAR(free_value);
}

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static int zend_assign_to_string_offset ( const temp_variable T,
const zval *  value,
int value_type  TSRMLS_DC 
) [inline, static]

Definition at line 618 of file zend_execute.c.

{
       if (Z_TYPE_P(T->str_offset.str) == IS_STRING) {

              if (((int)T->str_offset.offset < 0)) {
                     zend_error(E_WARNING, "Illegal string offset:  %d", T->str_offset.offset);
                     return 0;
              }

              if (T->str_offset.offset >= Z_STRLEN_P(T->str_offset.str)) {
                     Z_STRVAL_P(T->str_offset.str) = (char *) erealloc(Z_STRVAL_P(T->str_offset.str), T->str_offset.offset+1+1);
                     memset(Z_STRVAL_P(T->str_offset.str) + Z_STRLEN_P(T->str_offset.str),
                            ' ',
                            T->str_offset.offset - Z_STRLEN_P(T->str_offset.str));
                     Z_STRVAL_P(T->str_offset.str)[T->str_offset.offset+1] = 0;
                     Z_STRLEN_P(T->str_offset.str) = T->str_offset.offset+1;
              }

              if (Z_TYPE_P(value) != IS_STRING) {
                     zval tmp = *value;

                     if (value_type != IS_TMP_VAR) {
                            zval_copy_ctor(&tmp);
                     }
                     convert_to_string(&tmp);
                     Z_STRVAL_P(T->str_offset.str)[T->str_offset.offset] = Z_STRVAL(tmp)[0];
                     STR_FREE(Z_STRVAL(tmp));
              } else {
                     Z_STRVAL_P(T->str_offset.str)[T->str_offset.offset] = Z_STRVAL_P(value)[0];
                     if (value_type == IS_TMP_VAR) {
                            /* we can safely free final_value here
                             * because separation is done only
                             * in case value_type == IS_VAR */
                            STR_FREE(Z_STRVAL_P(value));
                     }
              }
              /*
               * the value of an assignment to a string offset is undefined
              T(result->u.var).var = &T->str_offset.str;
              */
       }
       return 1;
}

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static zval* zend_assign_to_variable ( zval **  variable_ptr_ptr,
zval *  value,
int is_tmp_var  TSRMLS_DC 
) [inline, static]

Definition at line 662 of file zend_execute.c.

{
       zval *variable_ptr = *variable_ptr_ptr;
       zval garbage;

       if (variable_ptr == EG(error_zval_ptr)) {
              if (is_tmp_var) {
                     zval_dtor(value);
              }
              return EG(uninitialized_zval_ptr);
       }

       if (Z_TYPE_P(variable_ptr) == IS_OBJECT && Z_OBJ_HANDLER_P(variable_ptr, set)) {
              Z_OBJ_HANDLER_P(variable_ptr, set)(variable_ptr_ptr, value TSRMLS_CC);
              return variable_ptr;
       }

       if (PZVAL_IS_REF(variable_ptr)) {
              if (variable_ptr!=value) {
                     zend_uint refcount = Z_REFCOUNT_P(variable_ptr);

                     garbage = *variable_ptr;
                     *variable_ptr = *value;
                     Z_SET_REFCOUNT_P(variable_ptr, refcount);
                     Z_SET_ISREF_P(variable_ptr);
                     if (!is_tmp_var) {
                            zendi_zval_copy_ctor(*variable_ptr);
                     }
                     zendi_zval_dtor(garbage);
                     return variable_ptr;
              }
       } else {
              if (Z_DELREF_P(variable_ptr)==0) {
                     if (!is_tmp_var) {
                            if (variable_ptr==value) {
                                   Z_ADDREF_P(variable_ptr);
                            } else if (PZVAL_IS_REF(value)) {
                                   garbage = *variable_ptr;
                                   *variable_ptr = *value;
                                   INIT_PZVAL(variable_ptr);
                                   zval_copy_ctor(variable_ptr);
                                   zendi_zval_dtor(garbage);
                                   return variable_ptr;
                            } else {
                                   Z_ADDREF_P(value);
                                   *variable_ptr_ptr = value;
                                   if (variable_ptr != &EG(uninitialized_zval)) {
                                          GC_REMOVE_ZVAL_FROM_BUFFER(variable_ptr);
                                          zval_dtor(variable_ptr);
                                          efree(variable_ptr);
                                   }
                                   return value;
                            }
                     } else {
                            garbage = *variable_ptr;
                            *variable_ptr = *value;
                            INIT_PZVAL(variable_ptr);
                            zendi_zval_dtor(garbage);
                            return variable_ptr;
                     }
              } else { /* we need to split */
                     GC_ZVAL_CHECK_POSSIBLE_ROOT(*variable_ptr_ptr);
                     if (!is_tmp_var) {
                            if (PZVAL_IS_REF(value) && Z_REFCOUNT_P(value) > 0) {
                                   ALLOC_ZVAL(variable_ptr);
                                   *variable_ptr_ptr = variable_ptr;
                                   *variable_ptr = *value;
                                   Z_SET_REFCOUNT_P(variable_ptr, 1);
                                   zval_copy_ctor(variable_ptr);
                            } else {
                                   *variable_ptr_ptr = value;
                                   Z_ADDREF_P(value);
                            }
                     } else {
                            ALLOC_ZVAL(*variable_ptr_ptr);
                            Z_SET_REFCOUNT_P(value, 1);
                            **variable_ptr_ptr = *value;
                     }
              }
              Z_UNSET_ISREF_PP(variable_ptr_ptr);
       }

       return *variable_ptr_ptr;
}

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static void zend_assign_to_variable_reference ( zval **  variable_ptr_ptr,
zval **value_ptr_ptr  TSRMLS_DC 
) [static]

Definition at line 386 of file zend_execute.c.

{
       zval *variable_ptr = *variable_ptr_ptr;
       zval *value_ptr = *value_ptr_ptr;

       if (variable_ptr == EG(error_zval_ptr) || value_ptr==EG(error_zval_ptr)) {
              variable_ptr_ptr = &EG(uninitialized_zval_ptr);
       } else if (variable_ptr != value_ptr) {
              if (!PZVAL_IS_REF(value_ptr)) {
                     /* break it away */
                     Z_DELREF_P(value_ptr);
                     if (Z_REFCOUNT_P(value_ptr)>0) {
                            ALLOC_ZVAL(*value_ptr_ptr);
                            **value_ptr_ptr = *value_ptr;
                            value_ptr = *value_ptr_ptr;
                            zendi_zval_copy_ctor(*value_ptr);
                     }
                     Z_SET_REFCOUNT_P(value_ptr, 1);
                     Z_SET_ISREF_P(value_ptr);
              }

              *variable_ptr_ptr = value_ptr;
              Z_ADDREF_P(value_ptr);

              zval_ptr_dtor(&variable_ptr);
       } else if (!Z_ISREF_P(variable_ptr)) {
              if (variable_ptr_ptr == value_ptr_ptr) {
                     SEPARATE_ZVAL(variable_ptr_ptr);
              } else if (variable_ptr==EG(uninitialized_zval_ptr)
                     || Z_REFCOUNT_P(variable_ptr)>2) {
                     /* we need to separate */
                     Z_SET_REFCOUNT_P(variable_ptr, Z_REFCOUNT_P(variable_ptr) - 2);
                     ALLOC_ZVAL(*variable_ptr_ptr);
                     **variable_ptr_ptr = *variable_ptr;
                     zval_copy_ctor(*variable_ptr_ptr);
                     *value_ptr_ptr = *variable_ptr_ptr;
                     Z_SET_REFCOUNT_PP(variable_ptr_ptr, 2);
              }
              Z_SET_ISREF_PP(variable_ptr_ptr);
       }
}

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static zend_brk_cont_element* zend_brk_cont ( const zval *  nest_levels_zval,
int  array_offset,
const zend_op_array *  op_array,
const temp_variable *Ts  TSRMLS_DC 
) [inline, static]

Definition at line 1195 of file zend_execute.c.

{
       zval tmp;
       int nest_levels, original_nest_levels;
       zend_brk_cont_element *jmp_to;

       if (nest_levels_zval->type != IS_LONG) {
              tmp = *nest_levels_zval;
              zval_copy_ctor(&tmp);
              convert_to_long(&tmp);
              nest_levels = tmp.value.lval;
       } else {
              nest_levels = nest_levels_zval->value.lval;
       }
       original_nest_levels = nest_levels;
       do {
              if (array_offset==-1) {
                     zend_error_noreturn(E_ERROR, "Cannot break/continue %d level%s", original_nest_levels, (original_nest_levels == 1) ? "" : "s");
              }
              jmp_to = &op_array->brk_cont_array[array_offset];
              if (nest_levels>1) {
                     zend_op *brk_opline = &op_array->opcodes[jmp_to->brk];

                     switch (brk_opline->opcode) {
                            case ZEND_SWITCH_FREE:
                                   if (brk_opline->op1.u.EA.type != EXT_TYPE_FREE_ON_RETURN) {
                                          zend_switch_free(&T(brk_opline->op1.u.var), brk_opline->extended_value TSRMLS_CC);
                                   }
                                   break;
                            case ZEND_FREE:
                                   if (brk_opline->op1.u.EA.type != EXT_TYPE_FREE_ON_RETURN) {
                                          zendi_zval_dtor(T(brk_opline->op1.u.var).tmp_var);
                                   }
                                   break;
                     }
              }
              array_offset = jmp_to->parent;
       } while (--nest_levels > 0);
       return jmp_to;
}

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static void zend_extension_fcall_begin_handler ( const zend_extension *  extension,
zend_op_array *op_array  TSRMLS_DC 
) [static]

Definition at line 757 of file zend_execute.c.

{
       if (extension->fcall_begin_handler) {
              extension->fcall_begin_handler(op_array);
       }
}

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static void zend_extension_fcall_end_handler ( const zend_extension *  extension,
zend_op_array *op_array  TSRMLS_DC 
) [static]

Definition at line 765 of file zend_execute.c.

{
       if (extension->fcall_end_handler) {
              extension->fcall_end_handler(op_array);
       }
}

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static void zend_extension_statement_handler ( const zend_extension *  extension,
zend_op_array *op_array  TSRMLS_DC 
) [static]

Definition at line 749 of file zend_execute.c.

{
       if (extension->statement_handler) {
              extension->statement_handler(op_array);
       }
}

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static void zend_fetch_dimension_address ( temp_variable result,
zval **  container_ptr,
zval *  dim,
int  dim_is_tmp_var,
int type  TSRMLS_DC 
) [static]

Definition at line 880 of file zend_execute.c.

{
       zval *container = *container_ptr;
       zval **retval;

       switch (Z_TYPE_P(container)) {

              case IS_ARRAY:
                     if (type != BP_VAR_UNSET && Z_REFCOUNT_P(container)>1 && !PZVAL_IS_REF(container)) {
                            SEPARATE_ZVAL(container_ptr);
                            container = *container_ptr;
                     }
fetch_from_array:
                     if (dim == NULL) {
                            zval *new_zval = &EG(uninitialized_zval);

                            Z_ADDREF_P(new_zval);
                            if (zend_hash_next_index_insert(Z_ARRVAL_P(container), &new_zval, sizeof(zval *), (void **) &retval) == FAILURE) {
                                   zend_error(E_WARNING, "Cannot add element to the array as the next element is already occupied");
                                   retval = &EG(error_zval_ptr);
                                   Z_DELREF_P(new_zval);
                            }
                     } else {
                            retval = zend_fetch_dimension_address_inner(Z_ARRVAL_P(container), dim, type TSRMLS_CC);
                     }
                     result->var.ptr_ptr = retval;
                     PZVAL_LOCK(*retval);
                     return;
                     break;

              case IS_NULL:
                     if (container == EG(error_zval_ptr)) {
                            result->var.ptr_ptr = &EG(error_zval_ptr);
                            PZVAL_LOCK(EG(error_zval_ptr));
                     } else if (type != BP_VAR_UNSET) {
convert_to_array:
                            if (!PZVAL_IS_REF(container)) {
                                   SEPARATE_ZVAL(container_ptr);
                                   container = *container_ptr;
                            }
                            zval_dtor(container);
                            array_init(container);
                            goto fetch_from_array;
                     } else {
                            /* for read-mode only */
                            result->var.ptr_ptr = &EG(uninitialized_zval_ptr);
                            PZVAL_LOCK(EG(uninitialized_zval_ptr));
                     }
                     return;
                     break;

              case IS_STRING: {
                            zval tmp;

                            if (type != BP_VAR_UNSET && Z_STRLEN_P(container)==0) {
                                   goto convert_to_array;
                            }
                            if (dim == NULL) {
                                   zend_error_noreturn(E_ERROR, "[] operator not supported for strings");
                            }

                            if (Z_TYPE_P(dim) != IS_LONG) {
                                   switch(Z_TYPE_P(dim)) {
                                          /* case IS_LONG: */
                                          case IS_STRING:
                                          case IS_DOUBLE:
                                          case IS_NULL:
                                          case IS_BOOL:
                                                 /* do nothing */
                                                 break;
                                          default:
                                                 zend_error(E_WARNING, "Illegal offset type");
                                                 break;
                                   }

                                   tmp = *dim;
                                   zval_copy_ctor(&tmp);
                                   convert_to_long(&tmp);
                                   dim = &tmp;
                            }
                            if (type != BP_VAR_UNSET) {
                                   SEPARATE_ZVAL_IF_NOT_REF(container_ptr);
                            }
                            container = *container_ptr;
                            result->str_offset.str = container;
                            PZVAL_LOCK(container);
                            result->str_offset.offset = Z_LVAL_P(dim);
                            result->var.ptr_ptr = NULL;
                            result->var.ptr = NULL;
                            return;
                     }
                     break;

              case IS_OBJECT:
                     if (!Z_OBJ_HT_P(container)->read_dimension) {
                            zend_error_noreturn(E_ERROR, "Cannot use object as array");
                     } else {
                            zval *overloaded_result;

                            if (dim_is_tmp_var) {
                                   zval *orig = dim;
                                   MAKE_REAL_ZVAL_PTR(dim);
                                   ZVAL_NULL(orig);
                            }
                            overloaded_result = Z_OBJ_HT_P(container)->read_dimension(container, dim, type TSRMLS_CC);

                            if (overloaded_result) {
                                   if (!Z_ISREF_P(overloaded_result)) {
                                          if (Z_REFCOUNT_P(overloaded_result) > 0) {
                                                 zval *tmp = overloaded_result;

                                                 ALLOC_ZVAL(overloaded_result);
                                                 *overloaded_result = *tmp;
                                                 zval_copy_ctor(overloaded_result);
                                                 Z_UNSET_ISREF_P(overloaded_result);
                                                 Z_SET_REFCOUNT_P(overloaded_result, 0);
                                          }
                                          if (Z_TYPE_P(overloaded_result) != IS_OBJECT) {
                                                 zend_class_entry *ce = Z_OBJCE_P(container);
                                                 zend_error(E_NOTICE, "Indirect modification of overloaded element of %s has no effect", ce->name);
                                          }
                                   }
                                   retval = &overloaded_result;
                            } else {
                                   retval = &EG(error_zval_ptr);
                            }
                            AI_SET_PTR(result->var, *retval);
                            PZVAL_LOCK(*retval);
                            if (dim_is_tmp_var) {
                                   zval_ptr_dtor(&dim);
                            }
                     }
                     return;
                     break;

              case IS_BOOL:
                     if (type != BP_VAR_UNSET && Z_LVAL_P(container)==0) {
                            goto convert_to_array;
                     }
                     /* break missing intentionally */

              default:
                     if (type == BP_VAR_UNSET) {
                            zend_error(E_WARNING, "Cannot unset offset in a non-array variable");
                            AI_SET_PTR(result->var, EG(uninitialized_zval_ptr));
                            PZVAL_LOCK(EG(uninitialized_zval_ptr));
                     } else {
                            zend_error(E_WARNING, "Cannot use a scalar value as an array");
                            result->var.ptr_ptr = &EG(error_zval_ptr);
                            PZVAL_LOCK(EG(error_zval_ptr));
                     }
                     break;
       }
}

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static zval** zend_fetch_dimension_address_inner ( HashTable ht,
const zval *  dim,
int type  TSRMLS_DC 
) [inline, static]

Definition at line 798 of file zend_execute.c.

{
       zval **retval;
       char *offset_key;
       int offset_key_length;
       long index;

       switch (dim->type) {
              case IS_NULL:
                     offset_key = "";
                     offset_key_length = 0;
                     goto fetch_string_dim;

              case IS_STRING:
                     
                     offset_key = dim->value.str.val;
                     offset_key_length = dim->value.str.len;
                     
fetch_string_dim:
                     if (zend_symtable_find(ht, offset_key, offset_key_length+1, (void **) &retval) == FAILURE) {
                            switch (type) {
                                   case BP_VAR_R:
                                          zend_error(E_NOTICE, "Undefined index: %s", offset_key);
                                          /* break missing intentionally */
                                   case BP_VAR_UNSET:
                                   case BP_VAR_IS:
                                          retval = &EG(uninitialized_zval_ptr);
                                          break;
                                   case BP_VAR_RW:
                                          zend_error(E_NOTICE,"Undefined index: %s", offset_key);
                                          /* break missing intentionally */
                                   case BP_VAR_W: {
                                                 zval *new_zval = &EG(uninitialized_zval);

                                                 Z_ADDREF_P(new_zval);
                                                 zend_symtable_update(ht, offset_key, offset_key_length+1, &new_zval, sizeof(zval *), (void **) &retval);
                                          }
                                          break;
                            }
                     }
                     break;
              case IS_DOUBLE:
                     index = zend_dval_to_lval(Z_DVAL_P(dim));
                     goto num_index;
              case IS_RESOURCE:
                     zend_error(E_STRICT, "Resource ID#%ld used as offset, casting to integer (%ld)", Z_LVAL_P(dim), Z_LVAL_P(dim));
                     /* Fall Through */
              case IS_BOOL:
              case IS_LONG:
                     index = Z_LVAL_P(dim);
num_index:
                     if (zend_hash_index_find(ht, index, (void **) &retval) == FAILURE) {
                            switch (type) {
                                   case BP_VAR_R:
                                          zend_error(E_NOTICE,"Undefined offset: %ld", index);
                                          /* break missing intentionally */
                                   case BP_VAR_UNSET:
                                   case BP_VAR_IS:
                                          retval = &EG(uninitialized_zval_ptr);
                                          break;
                                   case BP_VAR_RW:
                                          zend_error(E_NOTICE,"Undefined offset: %ld", index);
                                          /* break missing intentionally */
                                   case BP_VAR_W: {
                                          zval *new_zval = &EG(uninitialized_zval);

                                          Z_ADDREF_P(new_zval);
                                          zend_hash_index_update(ht, index, &new_zval, sizeof(zval *), (void **) &retval);
                                   }
                                   break;
                            }
                     }
                     break;

              default:
                     zend_error(E_WARNING, "Illegal offset type");
                     return (type == BP_VAR_W || type == BP_VAR_RW) ?
                            &EG(error_zval_ptr) : &EG(uninitialized_zval_ptr);
       }
       return retval;
}

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static void zend_fetch_dimension_address_read ( temp_variable result,
zval **  container_ptr,
zval *  dim,
int  dim_is_tmp_var,
int type  TSRMLS_DC 
) [static]

Definition at line 1035 of file zend_execute.c.

{
       zval *container = *container_ptr;
       zval **retval;

       switch (Z_TYPE_P(container)) {

              case IS_ARRAY:
                     retval = zend_fetch_dimension_address_inner(Z_ARRVAL_P(container), dim, type TSRMLS_CC);
                     if (result) {
                            AI_SET_PTR(result->var, *retval);
                            PZVAL_LOCK(*retval);
                     }
                     return;
                     break;

              case IS_NULL:
                     if (result) {
                            AI_SET_PTR(result->var, EG(uninitialized_zval_ptr));
                            PZVAL_LOCK(EG(uninitialized_zval_ptr));
                     }
                     return;
                     break;

              case IS_STRING: {
                            zval tmp;

                            if (Z_TYPE_P(dim) != IS_LONG) {
                                   switch(Z_TYPE_P(dim)) {
                                          /* case IS_LONG: */
                                          case IS_STRING:
                                          case IS_DOUBLE:
                                          case IS_NULL:
                                          case IS_BOOL:
                                                 /* do nothing */
                                                 break;
                                          default:
                                                 zend_error(E_WARNING, "Illegal offset type");
                                                 break;
                                   }

                                   tmp = *dim;
                                   zval_copy_ctor(&tmp);
                                   convert_to_long(&tmp);
                                   dim = &tmp;
                            }
                            if (result) {
                                   if ((Z_LVAL_P(dim) < 0 || Z_STRLEN_P(container) <= Z_LVAL_P(dim)) && type != BP_VAR_IS) {
                                          zend_error(E_NOTICE, "Uninitialized string offset: %ld", Z_LVAL_P(dim));
                                   }
                                   result->str_offset.str = container;
                                   PZVAL_LOCK(container);
                                   result->str_offset.offset = Z_LVAL_P(dim);
                                   result->var.ptr_ptr = NULL;
                                   result->var.ptr = NULL;
                            }
                            return;
                     }
                     break;

              case IS_OBJECT:
                     if (!Z_OBJ_HT_P(container)->read_dimension) {
                            zend_error_noreturn(E_ERROR, "Cannot use object as array");
                     } else {
                            zval *overloaded_result;

                            if (dim_is_tmp_var) {
                                   zval *orig = dim;
                                   MAKE_REAL_ZVAL_PTR(dim);
                                   ZVAL_NULL(orig);
                            }
                            overloaded_result = Z_OBJ_HT_P(container)->read_dimension(container, dim, type TSRMLS_CC);

                            if (overloaded_result) {
                                   if (result) {
                                          AI_SET_PTR(result->var, overloaded_result);
                                          PZVAL_LOCK(overloaded_result);
                                   } else if (Z_REFCOUNT_P(overloaded_result) == 0) {
                                          /* Destroy unused result from offsetGet() magic method */
                                          Z_SET_REFCOUNT_P(overloaded_result, 1);
                                          zval_ptr_dtor(&overloaded_result);
                                   }
                            } else if (result) {
                                   AI_SET_PTR(result->var, EG(uninitialized_zval_ptr));
                                   PZVAL_LOCK(EG(uninitialized_zval_ptr));
                            }
                            if (dim_is_tmp_var) {
                                   zval_ptr_dtor(&dim);
                            }
                     }
                     return;
                     break;

              default:
                     if (result) {
                            AI_SET_PTR(result->var, EG(uninitialized_zval_ptr));
                            PZVAL_LOCK(EG(uninitialized_zval_ptr));
                     }
                     return;
                     break;
       }
}

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static void zend_fetch_property_address ( temp_variable result,
zval **  container_ptr,
zval *  prop_ptr,
int type  TSRMLS_DC 
) [static]

Definition at line 1138 of file zend_execute.c.

{
       zval *container = *container_ptr;;

       if (Z_TYPE_P(container) != IS_OBJECT) {
              if (container == EG(error_zval_ptr)) {
                     result->var.ptr_ptr = &EG(error_zval_ptr);
                     PZVAL_LOCK(*result->var.ptr_ptr);
                     return;
              }

              /* this should modify object only if it's empty */
              if (type != BP_VAR_UNSET &&
                  ((Z_TYPE_P(container) == IS_NULL ||
                   (Z_TYPE_P(container) == IS_BOOL && Z_LVAL_P(container)==0) ||
                   (Z_TYPE_P(container) == IS_STRING && Z_STRLEN_P(container)==0)))) {
                     if (!PZVAL_IS_REF(container)) {
                            SEPARATE_ZVAL(container_ptr);
                            container = *container_ptr;
                     }
                     object_init(container);
              } else {
                     zend_error(E_WARNING, "Attempt to modify property of non-object");
                     result->var.ptr_ptr = &EG(error_zval_ptr);
                     PZVAL_LOCK(EG(error_zval_ptr));
                     return;
              }
       }

       if (Z_OBJ_HT_P(container)->get_property_ptr_ptr) {
              zval **ptr_ptr = Z_OBJ_HT_P(container)->get_property_ptr_ptr(container, prop_ptr TSRMLS_CC);
              if (NULL == ptr_ptr) {
                     zval *ptr;

                     if (Z_OBJ_HT_P(container)->read_property &&
                            (ptr = Z_OBJ_HT_P(container)->read_property(container, prop_ptr, type TSRMLS_CC)) != NULL) {
                            AI_SET_PTR(result->var, ptr);
                            PZVAL_LOCK(ptr);
                     } else {
                            zend_error_noreturn(E_ERROR, "Cannot access undefined property for object with overloaded property access");
                     }
              } else {
                     result->var.ptr_ptr = ptr_ptr;
                     PZVAL_LOCK(*ptr_ptr);
              }
       } else if (Z_OBJ_HT_P(container)->read_property) {
              zval *ptr = Z_OBJ_HT_P(container)->read_property(container, prop_ptr, type TSRMLS_CC);

              AI_SET_PTR(result->var, ptr);
              PZVAL_LOCK(ptr);
       } else {
              zend_error(E_WARNING, "This object doesn't support property references");
              result->var.ptr_ptr = &EG(error_zval_ptr);
              PZVAL_LOCK(EG(error_zval_ptr));
       }
}

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ZEND_API zval** zend_get_compiled_variable_value ( const zend_execute_data *  execute_data_ptr,
zend_uint  var 
)

Definition at line 170 of file zend_execute.c.

{
       return execute_data_ptr->CVs[var];
}
static HashTable* zend_get_target_symbol_table ( const zend_op *  opline,
const temp_variable Ts,
int  type,
const zval *variable  TSRMLS_DC 
) [inline, static]

Definition at line 773 of file zend_execute.c.

{
       switch (opline->op2.u.EA.type) {
              case ZEND_FETCH_LOCAL:
                     if (!EG(active_symbol_table)) {
                            zend_rebuild_symbol_table(TSRMLS_C);
                     }
                     return EG(active_symbol_table);
                     break;
              case ZEND_FETCH_GLOBAL:
              case ZEND_FETCH_GLOBAL_LOCK:
                     return &EG(symbol_table);
                     break;
              case ZEND_FETCH_STATIC:
                     if (!EG(active_op_array)->static_variables) {
                            ALLOC_HASHTABLE(EG(active_op_array)->static_variables);
                            zend_hash_init(EG(active_op_array)->static_variables, 2, NULL, ZVAL_PTR_DTOR, 0);
                     }
                     return EG(active_op_array)->static_variables;
                     break;
              EMPTY_SWITCH_DEFAULT_CASE()
       }
       return NULL;
}

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Definition at line 1307 of file zend_execute.c.

{
       return zend_user_opcode_handlers[opcode];
}
ZEND_API zval* zend_get_zval_ptr ( znode node,
const temp_variable Ts,
zend_free_op should_free,
int type  TSRMLS_DC 
)

Definition at line 1312 of file zend_execute.c.

                                                                                                                      {
       return get_zval_ptr(node, Ts, should_free, type);
}
ZEND_API zval** zend_get_zval_ptr_ptr ( const znode node,
const temp_variable Ts,
zend_free_op should_free,
int type  TSRMLS_DC 
)

Definition at line 1316 of file zend_execute.c.

                                                                                                                                 {
       return get_zval_ptr_ptr(node, Ts, should_free, type);
}
static zend_always_inline void zend_pzval_unlock_free_func ( zval *z  TSRMLS_DC) [static]

Definition at line 84 of file zend_execute.c.

{
       if (!Z_DELREF_P(z)) {
              if (z != &EG(uninitialized_zval)) {
                     GC_REMOVE_ZVAL_FROM_BUFFER(z);
                     zval_dtor(z);
                     efree(z);
              }
       }
}
static zend_always_inline void zend_pzval_unlock_func ( zval *  z,
zend_free_op should_free,
int unref  TSRMLS_DC 
) [static]

Definition at line 68 of file zend_execute.c.

{
       if (!Z_DELREF_P(z)) {
              Z_SET_REFCOUNT_P(z, 1);
              Z_UNSET_ISREF_P(z);
              should_free->var = z;
/*            should_free->is_var = 1; */
       } else {
              should_free->var = 0;
              if (unref && Z_ISREF_P(z) && Z_REFCOUNT_P(z) == 1) {
                     Z_UNSET_ISREF_P(z);
              }
              GC_ZVAL_CHECK_POSSIBLE_ROOT(z);
       }
}

Definition at line 1297 of file zend_execute.c.

{
       if (opcode != ZEND_USER_OPCODE) {
              zend_user_opcodes[opcode] = ZEND_USER_OPCODE;
              zend_user_opcode_handlers[opcode] = handler;
              return SUCCESS;
       }
       return FAILURE;
}
static void zend_switch_free ( temp_variable T,
int extended_value  TSRMLS_DC 
) [inline, static]

Definition at line 371 of file zend_execute.c.

{
       if (T->var.ptr) {
              if (extended_value & ZEND_FE_RESET_VARIABLE) { /* foreach() free */
                     Z_DELREF_P(T->var.ptr);
              }
              zval_ptr_dtor(&T->var.ptr);
       } else if (!T->var.ptr_ptr) {
              /* perform the equivalent of equivalent of a
               * quick & silent get_zval_ptr, and FREE_OP
               */
              PZVAL_UNLOCK_FREE(T->str_offset.str);
       }
}

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static char* zend_verify_arg_class_kind ( const zend_arg_info cur_arg_info,
ulong  fetch_type,
const char **  class_name,
zend_class_entry **pce  TSRMLS_DC 
) [inline, static]

Definition at line 443 of file zend_execute.c.

{
       *pce = zend_fetch_class(cur_arg_info->class_name, cur_arg_info->class_name_len, (fetch_type | ZEND_FETCH_CLASS_AUTO | ZEND_FETCH_CLASS_NO_AUTOLOAD) TSRMLS_CC);

       *class_name = (*pce) ? (*pce)->name: cur_arg_info->class_name;
       if (*pce && (*pce)->ce_flags & ZEND_ACC_INTERFACE) {
              return "implement interface ";
       } else {
              return "be an instance of ";
       }
}

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static int zend_verify_arg_error ( const zend_function zf,
zend_uint  arg_num,
const zend_arg_info cur_arg_info,
const char *  need_msg,
const char *  need_kind,
const char *  given_msg,
char *given_kind  TSRMLS_DC 
) [inline, static]

Definition at line 455 of file zend_execute.c.

{
       zend_execute_data *ptr = EG(current_execute_data)->prev_execute_data;
       char *fname = zf->common.function_name;
       char *fsep;
       char *fclass;

       if (zf->common.scope) {
              fsep =  "::";
              fclass = zf->common.scope->name;
       } else {
              fsep =  "";
              fclass = "";
       }

       if (ptr && ptr->op_array) {
              zend_error(E_RECOVERABLE_ERROR, "Argument %d passed to %s%s%s() must %s%s, %s%s given, called in %s on line %d and defined", arg_num, fclass, fsep, fname, need_msg, need_kind, given_msg, given_kind, ptr->op_array->filename, ptr->opline->lineno);
       } else {
              zend_error(E_RECOVERABLE_ERROR, "Argument %d passed to %s%s%s() must %s%s, %s%s given", arg_num, fclass, fsep, fname, need_msg, need_kind, given_msg, given_kind);
       }
       return 0;
}

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static int zend_verify_arg_type ( zend_function zf,
zend_uint  arg_num,
zval *  arg,
ulong fetch_type  TSRMLS_DC 
) [inline, static]

Definition at line 478 of file zend_execute.c.

{
       zend_arg_info *cur_arg_info;
       char *need_msg;
       zend_class_entry *ce;

       if (!zf->common.arg_info
              || arg_num>zf->common.num_args) {
              return 1;
       }

       cur_arg_info = &zf->common.arg_info[arg_num-1];

       if (cur_arg_info->class_name) {
              const char *class_name;

              if (!arg) {
                     need_msg = zend_verify_arg_class_kind(cur_arg_info, fetch_type, &class_name, &ce TSRMLS_CC);
                     return zend_verify_arg_error(zf, arg_num, cur_arg_info, need_msg, class_name, "none", "" TSRMLS_CC);
              }
              if (Z_TYPE_P(arg) == IS_OBJECT) {
                     need_msg = zend_verify_arg_class_kind(cur_arg_info, fetch_type, &class_name, &ce TSRMLS_CC);
                     if (!ce || !instanceof_function(Z_OBJCE_P(arg), ce TSRMLS_CC)) {
                            return zend_verify_arg_error(zf, arg_num, cur_arg_info, need_msg, class_name, "instance of ", Z_OBJCE_P(arg)->name TSRMLS_CC);
                     }
              } else if (Z_TYPE_P(arg) != IS_NULL || !cur_arg_info->allow_null) {
                     need_msg = zend_verify_arg_class_kind(cur_arg_info, fetch_type, &class_name, &ce TSRMLS_CC);
                     return zend_verify_arg_error(zf, arg_num, cur_arg_info, need_msg, class_name, zend_zval_type_name(arg), "" TSRMLS_CC);
              }
       } else if (cur_arg_info->array_type_hint) {
              if (!arg) {
                     return zend_verify_arg_error(zf, arg_num, cur_arg_info, "be an array", "", "none", "" TSRMLS_CC);
              }
              if (Z_TYPE_P(arg) != IS_ARRAY && (Z_TYPE_P(arg) != IS_NULL || !cur_arg_info->allow_null)) {
                     return zend_verify_arg_error(zf, arg_num, cur_arg_info, "be an array", "", zend_zval_type_name(arg), "" TSRMLS_CC);
              }
       }
       return 1;
}

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Variable Documentation

ZEND_API opcode_handler_t* zend_opcode_handlers

Definition at line 1268 of file zend_execute.c.