mirror of
https://github.com/php/php-src.git
synced 2024-12-25 09:49:08 +08:00
46fa26ab85
Right now generator functions simply immediately return a new Generator object (no suspension yet).
1548 lines
46 KiB
C
1548 lines
46 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998-2012 Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@zend.com> |
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| Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#define ZEND_INTENSIVE_DEBUGGING 0
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#include <stdio.h>
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#include <signal.h>
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#include "zend.h"
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#include "zend_compile.h"
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#include "zend_execute.h"
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#include "zend_API.h"
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#include "zend_ptr_stack.h"
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#include "zend_constants.h"
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#include "zend_extensions.h"
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#include "zend_ini.h"
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#include "zend_exceptions.h"
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#include "zend_interfaces.h"
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#include "zend_closures.h"
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#include "zend_generators.h"
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#include "zend_vm.h"
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#include "zend_dtrace.h"
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/* Virtual current working directory support */
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#include "tsrm_virtual_cwd.h"
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#define _CONST_CODE 0
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#define _TMP_CODE 1
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#define _VAR_CODE 2
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#define _UNUSED_CODE 3
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#define _CV_CODE 4
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typedef int (*incdec_t)(zval *);
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#define get_zval_ptr(op_type, node, Ts, should_free, type) _get_zval_ptr(op_type, node, Ts, should_free, type TSRMLS_CC)
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#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)
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#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)
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#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)
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/* Prototypes */
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static void zend_extension_statement_handler(const zend_extension *extension, zend_op_array *op_array TSRMLS_DC);
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static void zend_extension_fcall_begin_handler(const zend_extension *extension, zend_op_array *op_array TSRMLS_DC);
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static void zend_extension_fcall_end_handler(const zend_extension *extension, zend_op_array *op_array TSRMLS_DC);
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#define RETURN_VALUE_USED(opline) (!((opline)->result_type & EXT_TYPE_UNUSED))
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#define T(offset) (*(temp_variable *)((char *) Ts + offset))
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#define CV(var) CVs[var]
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#define TEMP_VAR_STACK_LIMIT 2000
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static zend_always_inline void zend_pzval_unlock_func(zval *z, zend_free_op *should_free, int unref TSRMLS_DC)
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{
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if (!Z_DELREF_P(z)) {
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Z_SET_REFCOUNT_P(z, 1);
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Z_UNSET_ISREF_P(z);
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should_free->var = z;
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/* should_free->is_var = 1; */
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} else {
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should_free->var = 0;
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if (unref && Z_ISREF_P(z) && Z_REFCOUNT_P(z) == 1) {
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Z_UNSET_ISREF_P(z);
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}
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GC_ZVAL_CHECK_POSSIBLE_ROOT(z);
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}
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}
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static zend_always_inline void zend_pzval_unlock_free_func(zval *z TSRMLS_DC)
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{
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if (!Z_DELREF_P(z)) {
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if (z != &EG(uninitialized_zval)) {
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GC_REMOVE_ZVAL_FROM_BUFFER(z);
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zval_dtor(z);
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efree(z);
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}
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}
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}
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#undef zval_ptr_dtor
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#define zval_ptr_dtor(pzv) i_zval_ptr_dtor(*(pzv) ZEND_FILE_LINE_CC)
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#define PZVAL_UNLOCK(z, f) zend_pzval_unlock_func(z, f, 1 TSRMLS_CC)
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#define PZVAL_UNLOCK_EX(z, f, u) zend_pzval_unlock_func(z, f, u TSRMLS_CC)
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#define PZVAL_UNLOCK_FREE(z) zend_pzval_unlock_free_func(z TSRMLS_CC)
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#define PZVAL_LOCK(z) Z_ADDREF_P((z))
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#define SELECTIVE_PZVAL_LOCK(pzv, opline) if (RETURN_VALUE_USED(opline)) { PZVAL_LOCK(pzv); }
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#define EXTRACT_ZVAL_PTR(t) do { \
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temp_variable *__t = (t); \
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if (__t->var.ptr_ptr) { \
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__t->var.ptr = *__t->var.ptr_ptr; \
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__t->var.ptr_ptr = &__t->var.ptr; \
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if (!PZVAL_IS_REF(__t->var.ptr) && \
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Z_REFCOUNT_P(__t->var.ptr) > 2) { \
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SEPARATE_ZVAL(__t->var.ptr_ptr); \
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} \
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} \
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} while (0)
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#define AI_SET_PTR(t, val) do { \
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temp_variable *__t = (t); \
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__t->var.ptr = (val); \
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__t->var.ptr_ptr = &__t->var.ptr; \
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} while (0)
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#define FREE_OP(should_free) \
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if (should_free.var) { \
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if ((zend_uintptr_t)should_free.var & 1L) { \
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zval_dtor((zval*)((zend_uintptr_t)should_free.var & ~1L)); \
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} else { \
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zval_ptr_dtor(&should_free.var); \
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} \
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}
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#define FREE_OP_IF_VAR(should_free) \
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if (should_free.var != NULL && (((zend_uintptr_t)should_free.var & 1L) == 0)) { \
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zval_ptr_dtor(&should_free.var); \
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}
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#define FREE_OP_VAR_PTR(should_free) \
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if (should_free.var) { \
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zval_ptr_dtor(&should_free.var); \
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}
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#define TMP_FREE(z) (zval*)(((zend_uintptr_t)(z)) | 1L)
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#define IS_TMP_FREE(should_free) ((zend_uintptr_t)should_free.var & 1L)
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#define MAKE_REAL_ZVAL_PTR(val) \
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do { \
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zval *_tmp; \
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ALLOC_ZVAL(_tmp); \
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INIT_PZVAL_COPY(_tmp, (val)); \
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(val) = _tmp; \
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} while (0)
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/* End of zend_execute_locks.h */
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#define CV_OF(i) (EG(current_execute_data)->CVs[i])
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#define CV_DEF_OF(i) (EG(active_op_array)->vars[i])
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#define CTOR_CALL_BIT 0x1
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#define CTOR_USED_BIT 0x2
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#define IS_CTOR_CALL(ce) (((zend_uintptr_t)(ce)) & CTOR_CALL_BIT)
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#define IS_CTOR_USED(ce) (((zend_uintptr_t)(ce)) & CTOR_USED_BIT)
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#define ENCODE_CTOR(ce, used) \
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((zend_class_entry*)(((zend_uintptr_t)(ce)) | CTOR_CALL_BIT | ((used) ? CTOR_USED_BIT : 0)))
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#define DECODE_CTOR(ce) \
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((zend_class_entry*)(((zend_uintptr_t)(ce)) & ~(CTOR_CALL_BIT|CTOR_USED_BIT)))
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ZEND_API zval** zend_get_compiled_variable_value(const zend_execute_data *execute_data_ptr, zend_uint var)
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{
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return execute_data_ptr->CVs[var];
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}
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static zend_always_inline zval *_get_zval_ptr_tmp(zend_uint var, const temp_variable *Ts, zend_free_op *should_free TSRMLS_DC)
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{
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return should_free->var = &T(var).tmp_var;
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}
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static zend_always_inline zval *_get_zval_ptr_var(zend_uint var, const temp_variable *Ts, zend_free_op *should_free TSRMLS_DC)
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{
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zval *ptr = T(var).var.ptr;
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PZVAL_UNLOCK(ptr, should_free);
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return ptr;
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}
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static zend_never_inline zval **_get_zval_cv_lookup(zval ***ptr, zend_uint var, int type TSRMLS_DC)
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{
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zend_compiled_variable *cv = &CV_DEF_OF(var);
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if (!EG(active_symbol_table) ||
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zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
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switch (type) {
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case BP_VAR_R:
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case BP_VAR_UNSET:
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zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
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/* break missing intentionally */
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case BP_VAR_IS:
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return &EG(uninitialized_zval_ptr);
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break;
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case BP_VAR_RW:
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zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
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/* break missing intentionally */
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case BP_VAR_W:
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Z_ADDREF(EG(uninitialized_zval));
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if (!EG(active_symbol_table)) {
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*ptr = (zval**)EG(current_execute_data)->CVs + (EG(active_op_array)->last_var + var);
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**ptr = &EG(uninitialized_zval);
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} else {
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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);
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}
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break;
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}
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}
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return *ptr;
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}
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static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_R(zval ***ptr, zend_uint var TSRMLS_DC)
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{
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zend_compiled_variable *cv = &CV_DEF_OF(var);
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if (!EG(active_symbol_table) ||
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zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
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zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
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return &EG(uninitialized_zval_ptr);
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}
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return *ptr;
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}
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static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_UNSET(zval ***ptr, zend_uint var TSRMLS_DC)
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{
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zend_compiled_variable *cv = &CV_DEF_OF(var);
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if (!EG(active_symbol_table) ||
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zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
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zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
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return &EG(uninitialized_zval_ptr);
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}
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return *ptr;
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}
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static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_IS(zval ***ptr, zend_uint var TSRMLS_DC)
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{
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zend_compiled_variable *cv = &CV_DEF_OF(var);
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if (!EG(active_symbol_table) ||
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zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
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return &EG(uninitialized_zval_ptr);
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}
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return *ptr;
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}
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static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_RW(zval ***ptr, zend_uint var TSRMLS_DC)
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{
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zend_compiled_variable *cv = &CV_DEF_OF(var);
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if (!EG(active_symbol_table)) {
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Z_ADDREF(EG(uninitialized_zval));
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*ptr = (zval**)EG(current_execute_data)->CVs + (EG(active_op_array)->last_var + var);
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**ptr = &EG(uninitialized_zval);
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zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
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} else if (zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
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Z_ADDREF(EG(uninitialized_zval));
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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);
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zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
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}
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return *ptr;
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}
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static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_W(zval ***ptr, zend_uint var TSRMLS_DC)
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{
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zend_compiled_variable *cv = &CV_DEF_OF(var);
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if (!EG(active_symbol_table)) {
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Z_ADDREF(EG(uninitialized_zval));
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*ptr = (zval**)EG(current_execute_data)->CVs + (EG(active_op_array)->last_var + var);
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**ptr = &EG(uninitialized_zval);
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} else if (zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
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Z_ADDREF(EG(uninitialized_zval));
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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);
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}
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return *ptr;
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}
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static zend_always_inline zval *_get_zval_ptr_cv(zend_uint var, int type TSRMLS_DC)
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{
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zval ***ptr = &CV_OF(var);
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if (UNEXPECTED(*ptr == NULL)) {
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return *_get_zval_cv_lookup(ptr, var, type TSRMLS_CC);
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}
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return **ptr;
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}
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static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_R(zval ***CVs, zend_uint var TSRMLS_DC)
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{
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zval ***ptr = &CV(var);
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if (UNEXPECTED(*ptr == NULL)) {
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return *_get_zval_cv_lookup_BP_VAR_R(ptr, var TSRMLS_CC);
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}
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return **ptr;
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}
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static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_UNSET(zval ***CVs, zend_uint var TSRMLS_DC)
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{
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zval ***ptr = &CV(var);
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if (UNEXPECTED(*ptr == NULL)) {
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return *_get_zval_cv_lookup_BP_VAR_UNSET(ptr, var TSRMLS_CC);
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}
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return **ptr;
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}
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static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_IS(zval ***CVs, zend_uint var TSRMLS_DC)
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{
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zval ***ptr = &CV(var);
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if (UNEXPECTED(*ptr == NULL)) {
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return *_get_zval_cv_lookup_BP_VAR_IS(ptr, var TSRMLS_CC);
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}
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return **ptr;
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}
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static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_RW(zval ***CVs, zend_uint var TSRMLS_DC)
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{
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zval ***ptr = &CV(var);
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if (UNEXPECTED(*ptr == NULL)) {
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return *_get_zval_cv_lookup_BP_VAR_RW(ptr, var TSRMLS_CC);
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}
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return **ptr;
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}
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static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_W(zval ***CVs, zend_uint var TSRMLS_DC)
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{
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zval ***ptr = &CV(var);
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if (UNEXPECTED(*ptr == NULL)) {
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return *_get_zval_cv_lookup_BP_VAR_W(ptr, var TSRMLS_CC);
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}
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return **ptr;
|
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}
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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:
|
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should_free->var = 0;
|
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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;
|
|
}
|
|
|
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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;
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|
|
|
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;
|
|
}
|
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|
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static zend_always_inline zval **_get_zval_ptr_ptr_cv(zend_uint var, int type TSRMLS_DC)
|
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{
|
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zval ***ptr = &CV_OF(var);
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|
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if (UNEXPECTED(*ptr == NULL)) {
|
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return _get_zval_cv_lookup(ptr, var, type TSRMLS_CC);
|
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}
|
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return *ptr;
|
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}
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|
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static zend_always_inline zval **_get_zval_ptr_ptr_cv_BP_VAR_R(zval ***CVs, zend_uint var TSRMLS_DC)
|
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{
|
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zval ***ptr = &CV(var);
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|
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if (UNEXPECTED(*ptr == NULL)) {
|
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return _get_zval_cv_lookup_BP_VAR_R(ptr, var TSRMLS_CC);
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}
|
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return *ptr;
|
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}
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static zend_always_inline zval **_get_zval_ptr_ptr_cv_BP_VAR_UNSET(zval ***CVs, zend_uint var TSRMLS_DC)
|
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{
|
|
zval ***ptr = &CV(var);
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|
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if (UNEXPECTED(*ptr == NULL)) {
|
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return _get_zval_cv_lookup_BP_VAR_UNSET(ptr, var TSRMLS_CC);
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}
|
|
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)
|
|
) {
|
|
zend_error(E_WARNING, "Creating default object from empty value");
|
|
|
|
SEPARATE_ZVAL_IF_NOT_REF(object_ptr);
|
|
zval_dtor(*object_ptr);
|
|
object_init(*object_ptr);
|
|
}
|
|
}
|
|
|
|
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 occured");
|
|
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 occured");
|
|
}
|
|
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:
|
|
*/
|