Imported from /home/lorry/working-area/delta_php2/php-5.4.13.tar.bz2.HEADphp-5.4.13master

1 files changed, 1545 insertions, 0 deletions

diff --git a/Zend/zend_execute.c b/Zend/zend_execute.c
new file mode 100644
index 0000000..276ad38
--- /dev/null
+++ b/Zend/zend_execute.c
@@ -0,0 +1,1545 @@
+/*
+   +----------------------------------------------------------------------+
+   | Zend Engine                                                          |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 1998-2013 Zend Technologies Ltd. (http://www.zend.com) |
+   +----------------------------------------------------------------------+
+   | This source file is subject to version 2.00 of the Zend license,     |
+   | that is bundled with this package in the file LICENSE, and is        |
+   | available through the world-wide-web at the following url:           |
+   | http://www.zend.com/license/2_00.txt.                                |
+   | If you did not receive a copy of the Zend license and are unable to  |
+   | obtain it through the world-wide-web, please send a note to          |
+   | license@zend.com so we can mail you a copy immediately.              |
+   +----------------------------------------------------------------------+
+   | Authors: Andi Gutmans <andi@zend.com>                                |
+   |          Zeev Suraski <zeev@zend.com>                                |
+   +----------------------------------------------------------------------+
+*/
+
+/* $Id$ */
+
+#define ZEND_INTENSIVE_DEBUGGING 0
+
+#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 "zend_dtrace.h"
+
+/* Virtual current working directory support */
+#include "tsrm_virtual_cwd.h"
+
+#define _CONST_CODE  0
+#define _TMP_CODE    1
+#define _VAR_CODE    2
+#define _UNUSED_CODE 3
+#define _CV_CODE     4
+
+typedef int (*incdec_t)(zval *);
+
+#define get_zval_ptr(op_type, node, Ts, should_free, type) _get_zval_ptr(op_type, node, Ts, should_free, type TSRMLS_CC)
+#define get_zval_ptr_ptr(op_type, node, Ts, should_free, type) _get_zval_ptr_ptr(op_type, node, Ts, should_free, type TSRMLS_CC)
+#define get_obj_zval_ptr(op_type, node, Ts, should_free, type) _get_obj_zval_ptr(op_type, node, Ts, should_free, type TSRMLS_CC)
+#define get_obj_zval_ptr_ptr(op_type, node, Ts, should_free, type) _get_obj_zval_ptr_ptr(op_type, node, Ts, should_free, type TSRMLS_CC)
+
+/* Prototypes */
+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);
+
+#define RETURN_VALUE_USED(opline) (!((opline)->result_type & EXT_TYPE_UNUSED))
+
+#define T(offset) (*(temp_variable *)((char *) Ts + offset))
+#define CV(var)   CVs[var]
+
+#define TEMP_VAR_STACK_LIMIT 2000
+
+static zend_always_inline void zend_pzval_unlock_func(zval *z, zend_free_op *should_free, int unref TSRMLS_DC)
+{
+	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);
+	}
+}
+
+static zend_always_inline void zend_pzval_unlock_free_func(zval *z TSRMLS_DC)
+{
+	if (!Z_DELREF_P(z)) {
+		if (z != &EG(uninitialized_zval)) {
+			GC_REMOVE_ZVAL_FROM_BUFFER(z);
+			zval_dtor(z);
+			efree(z);
+		}
+	}
+}
+
+#undef zval_ptr_dtor
+#define zval_ptr_dtor(pzv) i_zval_ptr_dtor(*(pzv)  ZEND_FILE_LINE_CC)
+
+#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 SELECTIVE_PZVAL_LOCK(pzv, opline)	if (RETURN_VALUE_USED(opline)) { PZVAL_LOCK(pzv); }
+
+#define EXTRACT_ZVAL_PTR(t) do {						\
+		temp_variable *__t = (t);					\
+		if (__t->var.ptr_ptr) {						\
+			__t->var.ptr = *__t->var.ptr_ptr;		\
+			__t->var.ptr_ptr = &__t->var.ptr;		\
+			if (!PZVAL_IS_REF(__t->var.ptr) && 		\
+			    Z_REFCOUNT_P(__t->var.ptr) > 2) {	\
+				SEPARATE_ZVAL(__t->var.ptr_ptr);	\
+			}										\
+		}											\
+	} while (0)
+
+#define AI_SET_PTR(t, val) do {				\
+		temp_variable *__t = (t);			\
+		__t->var.ptr = (val);				\
+		__t->var.ptr_ptr = &__t->var.ptr;	\
+	} while (0)
+
+#define FREE_OP(should_free) \
+	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); \
+		} \
+	}
+
+#define FREE_OP_IF_VAR(should_free) \
+	if (should_free.var != NULL && (((zend_uintptr_t)should_free.var & 1L) == 0)) { \
+		zval_ptr_dtor(&should_free.var); \
+	}
+
+#define FREE_OP_VAR_PTR(should_free) \
+	if (should_free.var) { \
+		zval_ptr_dtor(&should_free.var); \
+	}
+
+#define TMP_FREE(z) (zval*)(((zend_uintptr_t)(z)) | 1L)
+
+#define IS_TMP_FREE(should_free) ((zend_uintptr_t)should_free.var & 1L)
+
+#define MAKE_REAL_ZVAL_PTR(val) \
+	do { \
+		zval *_tmp; \
+		ALLOC_ZVAL(_tmp); \
+		INIT_PZVAL_COPY(_tmp, (val)); \
+		(val) = _tmp; \
+	} while (0)
+
+/* End of zend_execute_locks.h */
+
+#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)))
+
+ZEND_API zval** zend_get_compiled_variable_value(const zend_execute_data *execute_data_ptr, zend_uint var)
+{
+	return execute_data_ptr->CVs[var];
+}
+
+static zend_always_inline zval *_get_zval_ptr_tmp(zend_uint var, const temp_variable *Ts, zend_free_op *should_free TSRMLS_DC)
+{
+	return should_free->var = &T(var).tmp_var;
+}
+
+static zend_always_inline zval *_get_zval_ptr_var(zend_uint var, const temp_variable *Ts, zend_free_op *should_free TSRMLS_DC)
+{
+	zval *ptr = T(var).var.ptr;
+
+	PZVAL_UNLOCK(ptr, should_free);
+	return ptr;
+}
+
+static zend_never_inline zval **_get_zval_cv_lookup(zval ***ptr, zend_uint var, int type TSRMLS_DC)
+{
+	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;
+}
+
+static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_R(zval ***ptr, zend_uint var TSRMLS_DC)
+{
+	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) {
+		zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
+		return &EG(uninitialized_zval_ptr);
+	}
+	return *ptr;
+}
+
+static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_UNSET(zval ***ptr, zend_uint var TSRMLS_DC)
+{
+	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) {
+		zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
+		return &EG(uninitialized_zval_ptr);
+	}
+	return *ptr;
+}
+
+static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_IS(zval ***ptr, zend_uint var TSRMLS_DC)
+{
+	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) {
+		return &EG(uninitialized_zval_ptr);
+	}
+	return *ptr;
+}
+
+static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_RW(zval ***ptr, zend_uint var TSRMLS_DC)
+{
+	zend_compiled_variable *cv = &CV_DEF_OF(var);
+
+	if (!EG(active_symbol_table)) {
+		Z_ADDREF(EG(uninitialized_zval));
+		*ptr = (zval**)EG(current_execute_data)->CVs + (EG(active_op_array)->last_var + var);
+		**ptr = &EG(uninitialized_zval);
+		zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
+	} else if (zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
+		Z_ADDREF(EG(uninitialized_zval));
+		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);
+		zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
+	}
+	return *ptr;
+}
+
+static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_W(zval ***ptr, zend_uint var TSRMLS_DC)
+{
+	zend_compiled_variable *cv = &CV_DEF_OF(var);
+
+	if (!EG(active_symbol_table)) {
+		Z_ADDREF(EG(uninitialized_zval));
+		*ptr = (zval**)EG(current_execute_data)->CVs + (EG(active_op_array)->last_var + var);
+		**ptr = &EG(uninitialized_zval);
+	} else if (zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
+		Z_ADDREF(EG(uninitialized_zval));
+		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);
+	}
+	return *ptr;
+}
+
+static zend_always_inline zval *_get_zval_ptr_cv(zend_uint var, int type TSRMLS_DC)
+{
+	zval ***ptr = &CV_OF(var);
+
+	if (UNEXPECTED(*ptr == NULL)) {
+		return *_get_zval_cv_lookup(ptr, var, type TSRMLS_CC);
+	}
+	return **ptr;
+}
+
+static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_R(zval ***CVs, zend_uint var TSRMLS_DC)
+{
+	zval ***ptr = &CV(var);
+
+	if (UNEXPECTED(*ptr == NULL)) {
+		return *_get_zval_cv_lookup_BP_VAR_R(ptr, var TSRMLS_CC);
+	}
+	return **ptr;
+}
+
+static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_UNSET(zval ***CVs, zend_uint var TSRMLS_DC)
+{
+	zval ***ptr = &CV(var);
+
+	if (UNEXPECTED(*ptr == NULL)) {
+		return *_get_zval_cv_lookup_BP_VAR_UNSET(ptr, var TSRMLS_CC);
+	}
+	return **ptr;
+}
+
+static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_IS(zval ***CVs, zend_uint var TSRMLS_DC)
+{
+	zval ***ptr = &CV(var);
+
+	if (UNEXPECTED(*ptr == NULL)) {
+		return *_get_zval_cv_lookup_BP_VAR_IS(ptr, var TSRMLS_CC);
+	}
+	return **ptr;
+}
+
+static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_RW(zval ***CVs, zend_uint var TSRMLS_DC)
+{
+	zval ***ptr = &CV(var);
+
+	if (UNEXPECTED(*ptr == NULL)) {
+		return *_get_zval_cv_lookup_BP_VAR_RW(ptr, var TSRMLS_CC);
+	}
+	return **ptr;
+}
+
+static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_W(zval ***CVs, zend_uint var TSRMLS_DC)
+{
+	zval ***ptr = &CV(var);
+
+	if (UNEXPECTED(*ptr == NULL)) {
+		return *_get_zval_cv_lookup_BP_VAR_W(ptr, var TSRMLS_CC);
+	}
+	return **ptr;
+}
+
+static inline zval *_get_zval_ptr(int op_type, const znode_op *node, const temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC)
+{
+/*	should_free->is_var = 0; */
+	switch (op_type) {
+		case IS_CONST:
+			should_free->var = 0;
+			return node->zv;
+			break;
+		case IS_TMP_VAR:
+			should_free->var = TMP_FREE(&T(node->var).tmp_var);
+			return &T(node->var).tmp_var;
+			break;
+		case IS_VAR:
+			return _get_zval_ptr_var(node->var, 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->var, type TSRMLS_CC);
+			break;
+		EMPTY_SWITCH_DEFAULT_CASE()
+	}
+	return NULL;
+}
+
+static zend_always_inline zval **_get_zval_ptr_ptr_var(zend_uint var, const temp_variable *Ts, zend_free_op *should_free TSRMLS_DC)
+{
+	zval** ptr_ptr = T(var).var.ptr_ptr;
+
+	if (EXPECTED(ptr_ptr != NULL)) {
+		PZVAL_UNLOCK(*ptr_ptr, should_free);
+	} else {
+		/* string offset */
+		PZVAL_UNLOCK(T(var).str_offset.str, should_free);
+	}
+	return ptr_ptr;
+}
+
+static zend_always_inline zval **_get_zval_ptr_ptr_cv(zend_uint var, int type TSRMLS_DC)
+{
+	zval ***ptr = &CV_OF(var);
+
+	if (UNEXPECTED(*ptr == NULL)) {
+		return _get_zval_cv_lookup(ptr, var, type TSRMLS_CC);
+	}
+	return *ptr;
+}
+
+static zend_always_inline zval **_get_zval_ptr_ptr_cv_BP_VAR_R(zval ***CVs, zend_uint var TSRMLS_DC)
+{
+	zval ***ptr = &CV(var);
+
+	if (UNEXPECTED(*ptr == NULL)) {
+		return _get_zval_cv_lookup_BP_VAR_R(ptr, var TSRMLS_CC);
+	}
+	return *ptr;
+}
+
+static zend_always_inline zval **_get_zval_ptr_ptr_cv_BP_VAR_UNSET(zval ***CVs, zend_uint var TSRMLS_DC)
+{
+	zval ***ptr = &CV(var);
+
+	if (UNEXPECTED(*ptr == NULL)) {
+		return _get_zval_cv_lookup_BP_VAR_UNSET(ptr, var TSRMLS_CC);
+	}
+	return *ptr;
+}
+
+static zend_always_inline zval **_get_zval_ptr_ptr_cv_BP_VAR_IS(zval ***CVs, zend_uint var TSRMLS_DC)
+{
+	zval ***ptr = &CV(var);
+
+	if (UNEXPECTED(*ptr == NULL)) {
+		return _get_zval_cv_lookup_BP_VAR_IS(ptr, var TSRMLS_CC);
+	}
+	return *ptr;
+}
+
+static zend_always_inline zval **_get_zval_ptr_ptr_cv_BP_VAR_RW(zval ***CVs, zend_uint var TSRMLS_DC)
+{
+	zval ***ptr = &CV(var);
+
+	if (UNEXPECTED(*ptr == NULL)) {
+		return _get_zval_cv_lookup_BP_VAR_RW(ptr, var TSRMLS_CC);
+	}
+	return *ptr;
+}
+
+static zend_always_inline zval **_get_zval_ptr_ptr_cv_BP_VAR_W(zval ***CVs, zend_uint var TSRMLS_DC)
+{
+	zval ***ptr = &CV(var);
+
+	if (UNEXPECTED(*ptr == NULL)) {
+		return _get_zval_cv_lookup_BP_VAR_W(ptr, var TSRMLS_CC);
+	}
+	return *ptr;
+}
+
+static inline zval **_get_zval_ptr_ptr(int op_type, const znode_op *node, const temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC)
+{
+	if (op_type == IS_CV) {
+		should_free->var = 0;
+		return _get_zval_ptr_ptr_cv(node->var, type TSRMLS_CC);
+	} else if (op_type == IS_VAR) {
+		return _get_zval_ptr_ptr_var(node->var, Ts, should_free TSRMLS_CC);
+	} else {
+		should_free->var = 0;
+		return NULL;
+	}
+}
+
+static zend_always_inline zval *_get_obj_zval_ptr_unused(TSRMLS_D)
+{
+	if (EXPECTED(EG(This) != NULL)) {
+		return EG(This);
+	} else {
+		zend_error_noreturn(E_ERROR, "Using $this when not in object context");
+		return NULL;
+	}
+}
+
+static inline zval **_get_obj_zval_ptr_ptr(int op_type, const znode_op *op, const temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC)
+{
+	if (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_type, op, Ts, should_free, type);
+}
+
+static zend_always_inline zval **_get_obj_zval_ptr_ptr_unused(TSRMLS_D)
+{
+	if (EXPECTED(EG(This) != NULL)) {
+		return &EG(This);
+	} else {
+		zend_error_noreturn(E_ERROR, "Using $this when not in object context");
+		return NULL;
+	}
+}
+
+static inline zval *_get_obj_zval_ptr(int op_type, znode_op *op, const temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC)
+{
+	if (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_type, op, Ts, should_free, type);
+}
+
+static void zend_assign_to_variable_reference(zval **variable_ptr_ptr, zval **value_ptr_ptr TSRMLS_DC)
+{
+	zval *variable_ptr = *variable_ptr_ptr;
+	zval *value_ptr = *value_ptr_ptr;
+
+	if (variable_ptr == &EG(error_zval) || value_ptr == &EG(error_zval)) {
+		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);
+				ZVAL_COPY_VALUE(*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)
+			|| 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);
+			ZVAL_COPY_VALUE(*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);
+	}
+}
+
+/* this should modify object only if it's empty */
+static inline void make_real_object(zval **object_ptr TSRMLS_DC)
+{
+	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)
+	) {
+		SEPARATE_ZVAL_IF_NOT_REF(object_ptr);
+		zval_dtor(*object_ptr);
+		object_init(*object_ptr);
+		zend_error(E_WARNING, "Creating default object from empty value");
+	}
+}
+
+ZEND_API 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)
+{
+	*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 ";
+	}
+}
+
+ZEND_API int zend_verify_arg_error(int error_type, const zend_function *zf, zend_uint arg_num, const char *need_msg, const char *need_kind, const char *given_msg, const char *given_kind TSRMLS_DC)
+{
+	zend_execute_data *ptr = EG(current_execute_data)->prev_execute_data;
+	const char *fname = zf->common.function_name;
+	char *fsep;
+	const char *fclass;
+
+	if (zf->common.scope) {
+		fsep =  "::";
+		fclass = zf->common.scope->name;
+	} else {
+		fsep =  "";
+		fclass = "";
+	}
+
+	if (ptr && ptr->op_array) {
+		zend_error(error_type, "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(error_type, "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;
+}
+
+static inline int zend_verify_arg_type(zend_function *zf, zend_uint arg_num, zval *arg, ulong fetch_type TSRMLS_DC)
+{
+	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(E_RECOVERABLE_ERROR, zf, arg_num, 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(E_RECOVERABLE_ERROR, zf, arg_num, 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(E_RECOVERABLE_ERROR, zf, arg_num, need_msg, class_name, zend_zval_type_name(arg), "" TSRMLS_CC);
+		}
+	} else if (cur_arg_info->type_hint) {
+		switch(cur_arg_info->type_hint) {
+			case IS_ARRAY:
+				if (!arg) {
+					return zend_verify_arg_error(E_RECOVERABLE_ERROR, zf, arg_num, "be of the type 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(E_RECOVERABLE_ERROR, zf, arg_num, "be of the type array", "", zend_zval_type_name(arg), "" TSRMLS_CC);
+				}
+				break;
+
+			case IS_CALLABLE:
+				if (!arg) {
+					return zend_verify_arg_error(E_RECOVERABLE_ERROR, zf, arg_num, "be callable", "", "none", "" TSRMLS_CC);
+				}
+				if (!zend_is_callable(arg, IS_CALLABLE_CHECK_SILENT, NULL TSRMLS_CC) && (Z_TYPE_P(arg) != IS_NULL || !cur_arg_info->allow_null)) {
+					return zend_verify_arg_error(E_RECOVERABLE_ERROR, zf, arg_num, "be callable", "", zend_zval_type_name(arg), "" TSRMLS_CC);
+				}
+				break;
+
+			default:
+				zend_error(E_ERROR, "Unknown typehint");
+		}
+	}
+	return 1;
+}
+
+static inline void zend_assign_to_object(zval **retval, zval **object_ptr, zval *property_name, int value_type, znode_op *value_op, const temp_variable *Ts, int opcode, const zend_literal *key TSRMLS_DC)
+{
+	zval *object = *object_ptr;
+	zend_free_op free_value;
+ 	zval *value = get_zval_ptr(value_type, value_op, Ts, &free_value, BP_VAR_R);
+
+	if (Z_TYPE_P(object) != IS_OBJECT) {
+		if (object == &EG(error_zval)) {
+ 			if (retval) {
+				*retval = &EG(uninitialized_zval);
+				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_WARNING, "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 (retval) {
+				*retval = &EG(uninitialized_zval);
+				PZVAL_LOCK(*retval);
+			}
+			FREE_OP(free_value);
+			return;
+		}
+	}
+
+	/* separate our value if necessary */
+	if (value_type == IS_TMP_VAR) {
+		zval *orig_value = value;
+
+		ALLOC_ZVAL(value);
+		ZVAL_COPY_VALUE(value, orig_value);
+		Z_UNSET_ISREF_P(value);
+		Z_SET_REFCOUNT_P(value, 0);
+	} else if (value_type == IS_CONST) {
+		zval *orig_value = value;
+
+		ALLOC_ZVAL(value);
+		ZVAL_COPY_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 (retval) {
+				*retval = &EG(uninitialized_zval);
+				PZVAL_LOCK(&EG(uninitialized_zval));
+			}
+			if (value_type == IS_TMP_VAR) {
+				FREE_ZVAL(value);
+			} else if (value_type == IS_CONST) {
+				zval_ptr_dtor(&value);
+			}
+			FREE_OP(free_value);
+			return;
+		}
+		Z_OBJ_HT_P(object)->write_property(object, property_name, value, key 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 (retval && !EG(exception)) {
+		*retval = value;
+		PZVAL_LOCK(value);
+	}
+	zval_ptr_dtor(&value);
+	FREE_OP_IF_VAR(free_value);
+}
+
+static inline int zend_assign_to_string_offset(const temp_variable *T, const zval *value, int value_type TSRMLS_DC)
+{
+	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)) {
+			if (IS_INTERNED(Z_STRVAL_P(T->str_offset.str))) {
+				char *tmp = (char *) emalloc(T->str_offset.offset+1+1);
+
+				memcpy(tmp, Z_STRVAL_P(T->str_offset.str), Z_STRLEN_P(T->str_offset.str)+1);
+				Z_STRVAL_P(T->str_offset.str) = tmp;
+			} else {
+				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;
+		} else if (IS_INTERNED(Z_STRVAL_P(T->str_offset.str))) {
+			char *tmp = (char *) emalloc(Z_STRLEN_P(T->str_offset.str) + 1);
+
+			memcpy(tmp, Z_STRVAL_P(T->str_offset.str), Z_STRLEN_P(T->str_offset.str) + 1);
+			Z_STRVAL_P(T->str_offset.str) = tmp;
+		}
+
+		if (Z_TYPE_P(value) != IS_STRING) {
+			zval tmp;
+
+			ZVAL_COPY_VALUE(&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;
+}
+
+
+static inline zval* zend_assign_tmp_to_variable(zval **variable_ptr_ptr, zval *value TSRMLS_DC)
+{
+	zval *variable_ptr = *variable_ptr_ptr;
+	zval garbage;
+
+	if (Z_TYPE_P(variable_ptr) == IS_OBJECT &&
+	    UNEXPECTED(Z_OBJ_HANDLER_P(variable_ptr, set) != NULL)) {
+		Z_OBJ_HANDLER_P(variable_ptr, set)(variable_ptr_ptr, value TSRMLS_CC);
+		return variable_ptr;
+	}
+
+ 	if (UNEXPECTED(Z_REFCOUNT_P(variable_ptr) > 1) &&
+ 	    EXPECTED(!PZVAL_IS_REF(variable_ptr))) {
+ 	    /* we need to split */
+		Z_DELREF_P(variable_ptr);
+		GC_ZVAL_CHECK_POSSIBLE_ROOT(variable_ptr);
+		ALLOC_ZVAL(variable_ptr);
+		INIT_PZVAL_COPY(variable_ptr, value);
+		*variable_ptr_ptr = variable_ptr;
+		return variable_ptr;
+	} else {
+		if (EXPECTED(Z_TYPE_P(variable_ptr) <= IS_BOOL)) {
+			/* nothing to destroy */
+			ZVAL_COPY_VALUE(variable_ptr, value);
+		} else {
+			ZVAL_COPY_VALUE(&garbage, variable_ptr);
+			ZVAL_COPY_VALUE(variable_ptr, value);
+			_zval_dtor_func(&garbage ZEND_FILE_LINE_CC);
+		}
+		return variable_ptr;
+	}
+}
+
+static inline zval* zend_assign_const_to_variable(zval **variable_ptr_ptr, zval *value TSRMLS_DC)
+{
+	zval *variable_ptr = *variable_ptr_ptr;
+	zval garbage;
+
+	if (Z_TYPE_P(variable_ptr) == IS_OBJECT &&
+	    UNEXPECTED(Z_OBJ_HANDLER_P(variable_ptr, set) != NULL)) {
+		Z_OBJ_HANDLER_P(variable_ptr, set)(variable_ptr_ptr, value TSRMLS_CC);
+		return variable_ptr;
+	}
+
+ 	if (UNEXPECTED(Z_REFCOUNT_P(variable_ptr) > 1) &&
+ 	    EXPECTED(!PZVAL_IS_REF(variable_ptr))) {
+		/* we need to split */
+		Z_DELREF_P(variable_ptr);
+		GC_ZVAL_CHECK_POSSIBLE_ROOT(variable_ptr);
+		ALLOC_ZVAL(variable_ptr);
+		INIT_PZVAL_COPY(variable_ptr, value);
+		zval_copy_ctor(variable_ptr);
+		*variable_ptr_ptr = variable_ptr;
+		return variable_ptr;
+ 	} else {
+		if (EXPECTED(Z_TYPE_P(variable_ptr) <= IS_BOOL)) {
+			/* nothing to destroy */
+			ZVAL_COPY_VALUE(variable_ptr, value);
+			zendi_zval_copy_ctor(*variable_ptr);
+		} else {
+			ZVAL_COPY_VALUE(&garbage, variable_ptr);
+			ZVAL_COPY_VALUE(variable_ptr, value);
+			zendi_zval_copy_ctor(*variable_ptr);
+			_zval_dtor_func(&garbage ZEND_FILE_LINE_CC);
+		}
+		return variable_ptr;
+	}
+}
+
+static inline zval* zend_assign_to_variable(zval **variable_ptr_ptr, zval *value TSRMLS_DC)
+{
+	zval *variable_ptr = *variable_ptr_ptr;
+	zval garbage;
+
+	if (Z_TYPE_P(variable_ptr) == IS_OBJECT &&
+	    UNEXPECTED(Z_OBJ_HANDLER_P(variable_ptr, set) != NULL)) {
+		Z_OBJ_HANDLER_P(variable_ptr, set)(variable_ptr_ptr, value TSRMLS_CC);
+		return variable_ptr;
+	}
+
+ 	if (EXPECTED(!PZVAL_IS_REF(variable_ptr))) {
+		if (Z_REFCOUNT_P(variable_ptr)==1) {
+			if (UNEXPECTED(variable_ptr == value)) {
+				return variable_ptr;
+			} else if (EXPECTED(!PZVAL_IS_REF(value))) {
+				Z_ADDREF_P(value);
+				*variable_ptr_ptr = value;
+				if (EXPECTED(variable_ptr != &EG(uninitialized_zval))) {
+					GC_REMOVE_ZVAL_FROM_BUFFER(variable_ptr);
+					zval_dtor(variable_ptr);
+					efree(variable_ptr);
+				} else {
+					Z_DELREF_P(variable_ptr);
+				}
+				return value;
+			} else {
+				goto copy_value;
+			}
+		} else { /* we need to split */
+			Z_DELREF_P(variable_ptr);
+			GC_ZVAL_CHECK_POSSIBLE_ROOT(variable_ptr);
+			if (PZVAL_IS_REF(value) && Z_REFCOUNT_P(value) > 0) {
+				ALLOC_ZVAL(variable_ptr);
+				*variable_ptr_ptr = variable_ptr;
+				INIT_PZVAL_COPY(variable_ptr, value);
+				zval_copy_ctor(variable_ptr);
+				return variable_ptr;
+			} else {
+				*variable_ptr_ptr = value;
+				Z_ADDREF_P(value);
+				Z_UNSET_ISREF_P(value);
+				return value;
+			}
+		}
+ 	} else {
+		if (EXPECTED(variable_ptr != value)) {
+copy_value:
+			if (EXPECTED(Z_TYPE_P(variable_ptr) <= IS_BOOL)) {
+				/* nothing to destroy */
+				ZVAL_COPY_VALUE(variable_ptr, value);
+				zendi_zval_copy_ctor(*variable_ptr);
+			} else {
+				ZVAL_COPY_VALUE(&garbage, variable_ptr);
+				ZVAL_COPY_VALUE(variable_ptr, value);
+				zendi_zval_copy_ctor(*variable_ptr);
+				_zval_dtor_func(&garbage ZEND_FILE_LINE_CC);
+			}
+		}
+		return variable_ptr;
+	}
+}
+
+/* Utility Functions for Extensions */
+static void zend_extension_statement_handler(const zend_extension *extension, zend_op_array *op_array TSRMLS_DC)
+{
+	if (extension->statement_handler) {
+		extension->statement_handler(op_array);
+	}
+}
+
+
+static void zend_extension_fcall_begin_handler(const zend_extension *extension, zend_op_array *op_array TSRMLS_DC)
+{
+	if (extension->fcall_begin_handler) {
+		extension->fcall_begin_handler(op_array);
+	}
+}
+
+
+static void zend_extension_fcall_end_handler(const zend_extension *extension, zend_op_array *op_array TSRMLS_DC)
+{
+	if (extension->fcall_end_handler) {
+		extension->fcall_end_handler(op_array);
+	}
+}
+
+
+static inline HashTable *zend_get_target_symbol_table(int fetch_type TSRMLS_DC)
+{
+	switch (fetch_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;
+}
+
+static inline zval **zend_fetch_dimension_address_inner(HashTable *ht, const zval *dim, int dim_type, int type TSRMLS_DC)
+{
+	zval **retval;
+	char *offset_key;
+	int offset_key_length;
+	ulong hval;
+
+	switch (dim->type) {
+		case IS_NULL:
+			offset_key = "";
+			offset_key_length = 0;
+			hval = zend_inline_hash_func("", 1);
+			goto fetch_string_dim;
+
+		case IS_STRING:
+
+			offset_key = dim->value.str.val;
+			offset_key_length = dim->value.str.len;
+
+			if (dim_type == IS_CONST) {
+				hval = Z_HASH_P(dim);
+			} else {
+				ZEND_HANDLE_NUMERIC_EX(offset_key, offset_key_length+1, hval, goto num_index);
+				if (IS_INTERNED(offset_key)) {
+					hval = INTERNED_HASH(offset_key);
+				} else {
+					hval = zend_hash_func(offset_key, offset_key_length+1);
+				}
+			}
+fetch_string_dim:
+			if (zend_hash_quick_find(ht, offset_key, offset_key_length+1, hval, (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_hash_quick_update(ht, offset_key, offset_key_length+1, hval, &new_zval, sizeof(zval *), (void **) &retval);
+						}
+						break;
+				}
+			}
+			break;
+		case IS_DOUBLE:
+			hval = 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:
+			hval = Z_LVAL_P(dim);
+num_index:
+			if (zend_hash_index_find(ht, hval, (void **) &retval) == FAILURE) {
+				switch (type) {
+					case BP_VAR_R:
+						zend_error(E_NOTICE,"Undefined offset: %ld", hval);
+						/* 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", hval);
+						/* break missing intentionally */
+					case BP_VAR_W: {
+						zval *new_zval = &EG(uninitialized_zval);
+
+						Z_ADDREF_P(new_zval);
+						zend_hash_index_update(ht, hval, &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;
+}
+
+static void zend_fetch_dimension_address(temp_variable *result, zval **container_ptr, zval *dim, int dim_type, int type TSRMLS_DC)
+{
+	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, dim_type, type TSRMLS_CC);
+			}
+			result->var.ptr_ptr = retval;
+			PZVAL_LOCK(*retval);
+			return;
+			break;
+
+		case IS_NULL:
+			if (container == &EG(error_zval)) {
+				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:
+							if (IS_LONG == is_numeric_string(Z_STRVAL_P(dim), Z_STRLEN_P(dim), NULL, NULL, -1)) {
+								break;
+							}
+							if (type != BP_VAR_UNSET) {
+								zend_error(E_WARNING, "Illegal string offset '%s'", dim->value.str.val);
+							}
+
+							break;
+						case IS_DOUBLE:
+						case IS_NULL:
+						case IS_BOOL:
+							zend_error(E_NOTICE, "String offset cast occurred");
+							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->str_offset.ptr_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_type == 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);
+							ZVAL_COPY_VALUE(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, *retval);
+				PZVAL_LOCK(*retval);
+				if (dim_type == 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, &EG(uninitialized_zval));
+				PZVAL_LOCK(&EG(uninitialized_zval));
+			} 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;
+	}
+}
+
+static void zend_fetch_dimension_address_read(temp_variable *result, zval **container_ptr, zval *dim, int dim_type, int type TSRMLS_DC)
+{
+	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, dim_type, type TSRMLS_CC);
+			AI_SET_PTR(result, *retval);
+			PZVAL_LOCK(*retval);
+			return;
+
+		case IS_NULL:
+			AI_SET_PTR(result, &EG(uninitialized_zval));
+			PZVAL_LOCK(&EG(uninitialized_zval));
+			return;
+
+		case IS_STRING: {
+				zval tmp;
+				zval *ptr;
+
+				if (Z_TYPE_P(dim) != IS_LONG) {
+					switch(Z_TYPE_P(dim)) {
+						/* case IS_LONG: */
+						case IS_STRING:
+							if (IS_LONG == is_numeric_string(Z_STRVAL_P(dim), Z_STRLEN_P(dim), NULL, NULL, -1)) {
+								break;
+							}
+							if (type != BP_VAR_IS) {
+								zend_error(E_WARNING, "Illegal string offset '%s'", dim->value.str.val);
+							}
+							break;
+						case IS_DOUBLE:
+						case IS_NULL:
+						case IS_BOOL:
+							if (type != BP_VAR_IS) {
+								zend_error(E_NOTICE, "String offset cast occurred");
+							}
+							break;
+						default:
+							zend_error(E_WARNING, "Illegal offset type");
+							break;
+					}
+
+					ZVAL_COPY_VALUE(&tmp, dim);
+					zval_copy_ctor(&tmp);
+					convert_to_long(&tmp);
+					dim = &tmp;
+				}
+
+				ALLOC_ZVAL(ptr);
+				INIT_PZVAL(ptr);
+				Z_TYPE_P(ptr) = IS_STRING;
+
+				if (Z_LVAL_P(dim) < 0 || Z_STRLEN_P(container) <= Z_LVAL_P(dim)) {
+					if (type != BP_VAR_IS) {
+						zend_error(E_NOTICE, "Uninitialized string offset: %ld", Z_LVAL_P(dim));
+					}
+					Z_STRVAL_P(ptr) = STR_EMPTY_ALLOC();
+					Z_STRLEN_P(ptr) = 0;
+				} else {
+					Z_STRVAL_P(ptr) = (char*)emalloc(2);
+					Z_STRVAL_P(ptr)[0] = Z_STRVAL_P(container)[Z_LVAL_P(dim)];
+					Z_STRVAL_P(ptr)[1] = 0;
+					Z_STRLEN_P(ptr) = 1;
+				}
+				AI_SET_PTR(result, ptr);
+				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_type == 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) {
+					AI_SET_PTR(result, overloaded_result);
+					PZVAL_LOCK(overloaded_result);
+				} else if (result) {
+					AI_SET_PTR(result, &EG(uninitialized_zval));
+					PZVAL_LOCK(&EG(uninitialized_zval));
+				}
+				if (dim_type == IS_TMP_VAR) {
+					zval_ptr_dtor(&dim);
+				}
+			}
+			return;
+
+		default:
+			AI_SET_PTR(result, &EG(uninitialized_zval));
+			PZVAL_LOCK(&EG(uninitialized_zval));
+			return;
+	}
+}
+
+static void zend_fetch_property_address(temp_variable *result, zval **container_ptr, zval *prop_ptr, const zend_literal *key, int type TSRMLS_DC)
+{
+	zval *container = *container_ptr;;
+
+	if (Z_TYPE_P(container) != IS_OBJECT) {
+		if (container == &EG(error_zval)) {
+			result->var.ptr_ptr = &EG(error_zval_ptr);
+			PZVAL_LOCK(EG(error_zval_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, key 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, key TSRMLS_CC)) != NULL) {
+				AI_SET_PTR(result, 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, key TSRMLS_CC);
+
+		AI_SET_PTR(result, 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));
+	}
+}
+
+static inline zend_brk_cont_element* zend_brk_cont(int nest_levels, int array_offset, const zend_op_array *op_array, const temp_variable *Ts TSRMLS_DC)
+{
+	int original_nest_levels = nest_levels;
+	zend_brk_cont_element *jmp_to;
+
+	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->extended_value & EXT_TYPE_FREE_ON_RETURN)) {
+						zval_ptr_dtor(&T(brk_opline->op1.var).var.ptr);
+					}
+					break;
+				case ZEND_FREE:
+					if (!(brk_opline->extended_value & EXT_TYPE_FREE_ON_RETURN)) {
+						zendi_zval_dtor(T(brk_opline->op1.var).tmp_var);
+					}
+					break;
+			}
+		}
+		array_offset = jmp_to->parent;
+	} while (--nest_levels > 0);
+	return jmp_to;
+}
+
+#if ZEND_INTENSIVE_DEBUGGING
+
+#define CHECK_SYMBOL_TABLES()														\
+	zend_hash_apply(&EG(symbol_table), (apply_func_t) zend_check_symbol TSRMLS_CC);	\
+	if (&EG(symbol_table)!=EG(active_symbol_table)) {								\
+		zend_hash_apply(EG(active_symbol_table), (apply_func_t) zend_check_symbol TSRMLS_CC);	\
+	}
+
+static int zend_check_symbol(zval **pz TSRMLS_DC)
+{
+	if (Z_TYPE_PP(pz) > 9) {
+		fprintf(stderr, "Warning!  %x has invalid type!\n", *pz);
+/* See http://support.microsoft.com/kb/190351 */
+#ifdef PHP_WIN32
+		fflush(stderr);
+#endif
+	} else if (Z_TYPE_PP(pz) == IS_ARRAY) {
+		zend_hash_apply(Z_ARRVAL_PP(pz), (apply_func_t) zend_check_symbol TSRMLS_CC);
+	} else if (Z_TYPE_PP(pz) == IS_OBJECT) {
+
+		/* OBJ-TBI - doesn't support new object model! */
+		zend_hash_apply(Z_OBJPROP_PP(pz), (apply_func_t) zend_check_symbol TSRMLS_CC);
+	}
+
+	return 0;
+}
+
+
+#else
+#define CHECK_SYMBOL_TABLES()
+#endif
+
+ZEND_API opcode_handler_t *zend_opcode_handlers;
+
+ZEND_API void execute_internal(zend_execute_data *execute_data_ptr, int return_value_used TSRMLS_DC)
+{
+	zval **return_value_ptr = &(*(temp_variable *)((char *) execute_data_ptr->Ts + execute_data_ptr->opline->result.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.fn_flags & ZEND_ACC_RETURN_REFERENCE)?return_value_ptr:NULL, execute_data_ptr->object, return_value_used TSRMLS_CC);
+}
+
+#define ZEND_VM_NEXT_OPCODE() \
+	CHECK_SYMBOL_TABLES() \
+	ZEND_VM_INC_OPCODE(); \
+	ZEND_VM_CONTINUE()
+
+#define ZEND_VM_SET_OPCODE(new_op) \
+	CHECK_SYMBOL_TABLES() \
+	OPLINE = new_op
+
+#define ZEND_VM_JMP(new_op) \
+	if (EXPECTED(!EG(exception))) { \
+		ZEND_VM_SET_OPCODE(new_op); \
+	} else { \
+		LOAD_OPLINE(); \
+	} \
+	ZEND_VM_CONTINUE()
+
+#define ZEND_VM_INC_OPCODE() \
+	OPLINE++
+
+#ifdef __GNUC__
+# define ZEND_VM_GUARD(name) __asm__("#" #name)
+#else
+# define ZEND_VM_GUARD(name)
+#endif
+
+#include "zend_vm_execute.h"
+
+ZEND_API int zend_set_user_opcode_handler(zend_uchar opcode, user_opcode_handler_t handler)
+{
+	if (opcode != ZEND_USER_OPCODE) {
+		if (handler == NULL) {
+			/* restore the original handler */			
+			zend_user_opcodes[opcode] = opcode;
+		} else {
+			zend_user_opcodes[opcode] = ZEND_USER_OPCODE;
+		}
+		zend_user_opcode_handlers[opcode] = handler;
+		return SUCCESS;
+	}
+	return FAILURE;
+}
+
+ZEND_API user_opcode_handler_t zend_get_user_opcode_handler(zend_uchar opcode)
+{
+	return zend_user_opcode_handlers[opcode];
+}
+
+ZEND_API zval *zend_get_zval_ptr(int op_type, const znode_op *node, const temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC) {
+	return get_zval_ptr(op_type, node, Ts, should_free, type);
+}
+
+ZEND_API zval **zend_get_zval_ptr_ptr(int op_type, const znode_op *node, const temp_variable *Ts, zend_free_op *should_free, int type TSRMLS_DC) {
+	return get_zval_ptr_ptr(op_type, node, Ts, should_free, type);
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ */