/Zend/zend_execute.c
C | 4504 lines | 3832 code | 504 blank | 168 comment | 1279 complexity | 7c5eab72c2e4612efe22639a649ff2bb MD5 | raw file
Possible License(s): BSD-2-Clause, BSD-3-Clause, MPL-2.0-no-copyleft-exception, LGPL-2.1
- /*
- +----------------------------------------------------------------------+
- | Zend Engine |
- +----------------------------------------------------------------------+
- | Copyright (c) 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@php.net> |
- | Zeev Suraski <zeev@php.net> |
- | Dmitry Stogov <dmitry@php.net> |
- +----------------------------------------------------------------------+
- */
- #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_generators.h"
- #include "zend_vm.h"
- #include "zend_dtrace.h"
- #include "zend_inheritance.h"
- #include "zend_type_info.h"
- #include "zend_smart_str.h"
- /* Virtual current working directory support */
- #include "zend_virtual_cwd.h"
- #ifdef HAVE_GCC_GLOBAL_REGS
- # if defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(i386)
- # define ZEND_VM_FP_GLOBAL_REG "%esi"
- # define ZEND_VM_IP_GLOBAL_REG "%edi"
- # elif defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(__x86_64__)
- # define ZEND_VM_FP_GLOBAL_REG "%r14"
- # define ZEND_VM_IP_GLOBAL_REG "%r15"
- # elif defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(__powerpc64__)
- # define ZEND_VM_FP_GLOBAL_REG "r28"
- # define ZEND_VM_IP_GLOBAL_REG "r29"
- # elif defined(__IBMC__) && ZEND_GCC_VERSION >= 4002 && defined(__powerpc64__)
- # define ZEND_VM_FP_GLOBAL_REG "r28"
- # define ZEND_VM_IP_GLOBAL_REG "r29"
- # elif defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(__aarch64__)
- # define ZEND_VM_FP_GLOBAL_REG "x27"
- # define ZEND_VM_IP_GLOBAL_REG "x28"
- # endif
- #endif
- #if defined(ZEND_VM_FP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- # pragma GCC diagnostic ignored "-Wvolatile-register-var"
- register zend_execute_data* volatile execute_data __asm__(ZEND_VM_FP_GLOBAL_REG);
- # pragma GCC diagnostic warning "-Wvolatile-register-var"
- #endif
- #if defined(ZEND_VM_FP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- # define EXECUTE_DATA_D void
- # define EXECUTE_DATA_C
- # define EXECUTE_DATA_DC
- # define EXECUTE_DATA_CC
- # define NO_EXECUTE_DATA_CC
- #else
- # define EXECUTE_DATA_D zend_execute_data* execute_data
- # define EXECUTE_DATA_C execute_data
- # define EXECUTE_DATA_DC , EXECUTE_DATA_D
- # define EXECUTE_DATA_CC , EXECUTE_DATA_C
- # define NO_EXECUTE_DATA_CC , NULL
- #endif
- #if defined(ZEND_VM_FP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- # define OPLINE_D void
- # define OPLINE_C
- # define OPLINE_DC
- # define OPLINE_CC
- #else
- # define OPLINE_D const zend_op* opline
- # define OPLINE_C opline
- # define OPLINE_DC , OPLINE_D
- # define OPLINE_CC , OPLINE_C
- #endif
- #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- # pragma GCC diagnostic ignored "-Wvolatile-register-var"
- register const zend_op* volatile opline __asm__(ZEND_VM_IP_GLOBAL_REG);
- # pragma GCC diagnostic warning "-Wvolatile-register-var"
- #else
- #endif
- #define _CONST_CODE 0
- #define _TMP_CODE 1
- #define _VAR_CODE 2
- #define _UNUSED_CODE 3
- #define _CV_CODE 4
- typedef int (ZEND_FASTCALL *incdec_t)(zval *);
- #define get_zval_ptr(op_type, node, type) _get_zval_ptr(op_type, node, type EXECUTE_DATA_CC OPLINE_CC)
- #define get_zval_ptr_deref(op_type, node, type) _get_zval_ptr_deref(op_type, node, type EXECUTE_DATA_CC OPLINE_CC)
- #define get_zval_ptr_undef(op_type, node, type) _get_zval_ptr_undef(op_type, node, type EXECUTE_DATA_CC OPLINE_CC)
- #define get_op_data_zval_ptr_r(op_type, node) _get_op_data_zval_ptr_r(op_type, node EXECUTE_DATA_CC OPLINE_CC)
- #define get_op_data_zval_ptr_deref_r(op_type, node) _get_op_data_zval_ptr_deref_r(op_type, node EXECUTE_DATA_CC OPLINE_CC)
- #define get_zval_ptr_ptr(op_type, node, type) _get_zval_ptr_ptr(op_type, node, type EXECUTE_DATA_CC)
- #define get_zval_ptr_ptr_undef(op_type, node, type) _get_zval_ptr_ptr(op_type, node, type EXECUTE_DATA_CC)
- #define get_obj_zval_ptr(op_type, node, type) _get_obj_zval_ptr(op_type, node, type EXECUTE_DATA_CC OPLINE_CC)
- #define get_obj_zval_ptr_undef(op_type, node, type) _get_obj_zval_ptr_undef(op_type, node, type EXECUTE_DATA_CC OPLINE_CC)
- #define get_obj_zval_ptr_ptr(op_type, node, type) _get_obj_zval_ptr_ptr(op_type, node, type EXECUTE_DATA_CC)
- #define RETURN_VALUE_USED(opline) ((opline)->result_type != IS_UNUSED)
- static ZEND_FUNCTION(pass)
- {
- }
- ZEND_API const zend_internal_function zend_pass_function = {
- ZEND_INTERNAL_FUNCTION, /* type */
- {0, 0, 0}, /* arg_flags */
- 0, /* fn_flags */
- NULL, /* name */
- NULL, /* scope */
- NULL, /* prototype */
- 0, /* num_args */
- 0, /* required_num_args */
- NULL, /* arg_info */
- ZEND_FN(pass), /* handler */
- NULL, /* module */
- {NULL,NULL,NULL,NULL} /* reserved */
- };
- #define FREE_VAR_PTR_AND_EXTRACT_RESULT_IF_NECESSARY(free_var) do { \
- zval *__container_to_free = EX_VAR(free_var); \
- if (UNEXPECTED(Z_REFCOUNTED_P(__container_to_free))) { \
- zend_refcounted *__ref = Z_COUNTED_P(__container_to_free); \
- if (UNEXPECTED(!GC_DELREF(__ref))) { \
- zval *__zv = EX_VAR(opline->result.var); \
- if (EXPECTED(Z_TYPE_P(__zv) == IS_INDIRECT)) { \
- ZVAL_COPY(__zv, Z_INDIRECT_P(__zv)); \
- } \
- rc_dtor_func(__ref); \
- } \
- } \
- } while (0)
- #define FREE_OP(type, var) \
- if ((type) & (IS_TMP_VAR|IS_VAR)) { \
- zval_ptr_dtor_nogc(EX_VAR(var)); \
- }
- #define FREE_UNFETCHED_OP(type, var) \
- FREE_OP(type, var)
- #define FREE_OP_VAR_PTR(type, var) \
- FREE_OP(type, var)
- #define CV_DEF_OF(i) (EX(func)->op_array.vars[i])
- #define ZEND_VM_STACK_PAGE_SLOTS (16 * 1024) /* should be a power of 2 */
- #define ZEND_VM_STACK_PAGE_SIZE (ZEND_VM_STACK_PAGE_SLOTS * sizeof(zval))
- #define ZEND_VM_STACK_PAGE_ALIGNED_SIZE(size, page_size) \
- (((size) + ZEND_VM_STACK_HEADER_SLOTS * sizeof(zval) \
- + ((page_size) - 1)) & ~((page_size) - 1))
- static zend_always_inline zend_vm_stack zend_vm_stack_new_page(size_t size, zend_vm_stack prev) {
- zend_vm_stack page = (zend_vm_stack)emalloc(size);
- page->top = ZEND_VM_STACK_ELEMENTS(page);
- page->end = (zval*)((char*)page + size);
- page->prev = prev;
- return page;
- }
- ZEND_API void zend_vm_stack_init(void)
- {
- EG(vm_stack_page_size) = ZEND_VM_STACK_PAGE_SIZE;
- EG(vm_stack) = zend_vm_stack_new_page(ZEND_VM_STACK_PAGE_SIZE, NULL);
- EG(vm_stack_top) = EG(vm_stack)->top;
- EG(vm_stack_end) = EG(vm_stack)->end;
- }
- ZEND_API void zend_vm_stack_init_ex(size_t page_size)
- {
- /* page_size must be a power of 2 */
- ZEND_ASSERT(page_size > 0 && (page_size & (page_size - 1)) == 0);
- EG(vm_stack_page_size) = page_size;
- EG(vm_stack) = zend_vm_stack_new_page(page_size, NULL);
- EG(vm_stack_top) = EG(vm_stack)->top;
- EG(vm_stack_end) = EG(vm_stack)->end;
- }
- ZEND_API void zend_vm_stack_destroy(void)
- {
- zend_vm_stack stack = EG(vm_stack);
- while (stack != NULL) {
- zend_vm_stack p = stack->prev;
- efree(stack);
- stack = p;
- }
- }
- ZEND_API void* zend_vm_stack_extend(size_t size)
- {
- zend_vm_stack stack;
- void *ptr;
- stack = EG(vm_stack);
- stack->top = EG(vm_stack_top);
- EG(vm_stack) = stack = zend_vm_stack_new_page(
- EXPECTED(size < EG(vm_stack_page_size) - (ZEND_VM_STACK_HEADER_SLOTS * sizeof(zval))) ?
- EG(vm_stack_page_size) : ZEND_VM_STACK_PAGE_ALIGNED_SIZE(size, EG(vm_stack_page_size)),
- stack);
- ptr = stack->top;
- EG(vm_stack_top) = (void*)(((char*)ptr) + size);
- EG(vm_stack_end) = stack->end;
- return ptr;
- }
- ZEND_API zval* zend_get_compiled_variable_value(const zend_execute_data *execute_data, uint32_t var)
- {
- return EX_VAR(var);
- }
- static zend_always_inline zval *_get_zval_ptr_tmp(uint32_t var EXECUTE_DATA_DC)
- {
- zval *ret = EX_VAR(var);
- ZEND_ASSERT(Z_TYPE_P(ret) != IS_REFERENCE);
- return ret;
- }
- static zend_always_inline zval *_get_zval_ptr_var(uint32_t var EXECUTE_DATA_DC)
- {
- zval *ret = EX_VAR(var);
- return ret;
- }
- static zend_always_inline zval *_get_zval_ptr_var_deref(uint32_t var EXECUTE_DATA_DC)
- {
- zval *ret = EX_VAR(var);
- ZVAL_DEREF(ret);
- return ret;
- }
- static zend_never_inline ZEND_COLD zval* zval_undefined_cv(uint32_t var EXECUTE_DATA_DC)
- {
- if (EXPECTED(EG(exception) == NULL)) {
- zend_string *cv = CV_DEF_OF(EX_VAR_TO_NUM(var));
- zend_error(E_WARNING, "Undefined variable $%s", ZSTR_VAL(cv));
- }
- return &EG(uninitialized_zval);
- }
- static zend_never_inline ZEND_COLD zval* ZEND_FASTCALL _zval_undefined_op1(EXECUTE_DATA_D)
- {
- return zval_undefined_cv(EX(opline)->op1.var EXECUTE_DATA_CC);
- }
- static zend_never_inline ZEND_COLD zval* ZEND_FASTCALL _zval_undefined_op2(EXECUTE_DATA_D)
- {
- return zval_undefined_cv(EX(opline)->op2.var EXECUTE_DATA_CC);
- }
- #define ZVAL_UNDEFINED_OP1() _zval_undefined_op1(EXECUTE_DATA_C)
- #define ZVAL_UNDEFINED_OP2() _zval_undefined_op2(EXECUTE_DATA_C)
- static zend_never_inline ZEND_COLD zval *_get_zval_cv_lookup(zval *ptr, uint32_t var, int type EXECUTE_DATA_DC)
- {
- switch (type) {
- case BP_VAR_R:
- case BP_VAR_UNSET:
- ptr = zval_undefined_cv(var EXECUTE_DATA_CC);
- break;
- case BP_VAR_IS:
- ptr = &EG(uninitialized_zval);
- break;
- case BP_VAR_RW:
- zval_undefined_cv(var EXECUTE_DATA_CC);
- /* break missing intentionally */
- case BP_VAR_W:
- ZVAL_NULL(ptr);
- break;
- }
- return ptr;
- }
- static zend_always_inline zval *_get_zval_ptr_cv(uint32_t var, int type EXECUTE_DATA_DC)
- {
- zval *ret = EX_VAR(var);
- if (UNEXPECTED(Z_TYPE_P(ret) == IS_UNDEF)) {
- if (type == BP_VAR_W) {
- ZVAL_NULL(ret);
- } else {
- return _get_zval_cv_lookup(ret, var, type EXECUTE_DATA_CC);
- }
- }
- return ret;
- }
- static zend_always_inline zval *_get_zval_ptr_cv_deref(uint32_t var, int type EXECUTE_DATA_DC)
- {
- zval *ret = EX_VAR(var);
- if (UNEXPECTED(Z_TYPE_P(ret) == IS_UNDEF)) {
- if (type == BP_VAR_W) {
- ZVAL_NULL(ret);
- return ret;
- } else {
- return _get_zval_cv_lookup(ret, var, type EXECUTE_DATA_CC);
- }
- }
- ZVAL_DEREF(ret);
- return ret;
- }
- static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_R(uint32_t var EXECUTE_DATA_DC)
- {
- zval *ret = EX_VAR(var);
- if (UNEXPECTED(Z_TYPE_P(ret) == IS_UNDEF)) {
- return zval_undefined_cv(var EXECUTE_DATA_CC);
- }
- return ret;
- }
- static zend_always_inline zval *_get_zval_ptr_cv_deref_BP_VAR_R(uint32_t var EXECUTE_DATA_DC)
- {
- zval *ret = EX_VAR(var);
- if (UNEXPECTED(Z_TYPE_P(ret) == IS_UNDEF)) {
- return zval_undefined_cv(var EXECUTE_DATA_CC);
- }
- ZVAL_DEREF(ret);
- return ret;
- }
- static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_IS(uint32_t var EXECUTE_DATA_DC)
- {
- zval *ret = EX_VAR(var);
- return ret;
- }
- static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_RW(uint32_t var EXECUTE_DATA_DC)
- {
- zval *ret = EX_VAR(var);
- if (UNEXPECTED(Z_TYPE_P(ret) == IS_UNDEF)) {
- ZVAL_NULL(ret);
- zval_undefined_cv(var EXECUTE_DATA_CC);
- return ret;
- }
- return ret;
- }
- static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_W(uint32_t var EXECUTE_DATA_DC)
- {
- zval *ret = EX_VAR(var);
- if (Z_TYPE_P(ret) == IS_UNDEF) {
- ZVAL_NULL(ret);
- }
- return ret;
- }
- static zend_always_inline zval *_get_zval_ptr(int op_type, znode_op node, int type EXECUTE_DATA_DC OPLINE_DC)
- {
- if (op_type & (IS_TMP_VAR|IS_VAR)) {
- if (!ZEND_DEBUG || op_type == IS_VAR) {
- return _get_zval_ptr_var(node.var EXECUTE_DATA_CC);
- } else {
- ZEND_ASSERT(op_type == IS_TMP_VAR);
- return _get_zval_ptr_tmp(node.var EXECUTE_DATA_CC);
- }
- } else {
- if (op_type == IS_CONST) {
- return RT_CONSTANT(opline, node);
- } else if (op_type == IS_CV) {
- return _get_zval_ptr_cv(node.var, type EXECUTE_DATA_CC);
- } else {
- return NULL;
- }
- }
- }
- static zend_always_inline zval *_get_op_data_zval_ptr_r(int op_type, znode_op node EXECUTE_DATA_DC OPLINE_DC)
- {
- if (op_type & (IS_TMP_VAR|IS_VAR)) {
- if (!ZEND_DEBUG || op_type == IS_VAR) {
- return _get_zval_ptr_var(node.var EXECUTE_DATA_CC);
- } else {
- ZEND_ASSERT(op_type == IS_TMP_VAR);
- return _get_zval_ptr_tmp(node.var EXECUTE_DATA_CC);
- }
- } else {
- if (op_type == IS_CONST) {
- return RT_CONSTANT(opline + 1, node);
- } else if (op_type == IS_CV) {
- return _get_zval_ptr_cv_BP_VAR_R(node.var EXECUTE_DATA_CC);
- } else {
- return NULL;
- }
- }
- }
- static zend_always_inline ZEND_ATTRIBUTE_UNUSED zval *_get_zval_ptr_deref(int op_type, znode_op node, int type EXECUTE_DATA_DC OPLINE_DC)
- {
- if (op_type & (IS_TMP_VAR|IS_VAR)) {
- if (op_type == IS_TMP_VAR) {
- return _get_zval_ptr_tmp(node.var EXECUTE_DATA_CC);
- } else {
- ZEND_ASSERT(op_type == IS_VAR);
- return _get_zval_ptr_var_deref(node.var EXECUTE_DATA_CC);
- }
- } else {
- if (op_type == IS_CONST) {
- return RT_CONSTANT(opline, node);
- } else if (op_type == IS_CV) {
- return _get_zval_ptr_cv_deref(node.var, type EXECUTE_DATA_CC);
- } else {
- return NULL;
- }
- }
- }
- static zend_always_inline ZEND_ATTRIBUTE_UNUSED zval *_get_op_data_zval_ptr_deref_r(int op_type, znode_op node EXECUTE_DATA_DC OPLINE_DC)
- {
- if (op_type & (IS_TMP_VAR|IS_VAR)) {
- if (op_type == IS_TMP_VAR) {
- return _get_zval_ptr_tmp(node.var EXECUTE_DATA_CC);
- } else {
- ZEND_ASSERT(op_type == IS_VAR);
- return _get_zval_ptr_var_deref(node.var EXECUTE_DATA_CC);
- }
- } else {
- if (op_type == IS_CONST) {
- return RT_CONSTANT(opline + 1, node);
- } else if (op_type == IS_CV) {
- return _get_zval_ptr_cv_deref_BP_VAR_R(node.var EXECUTE_DATA_CC);
- } else {
- return NULL;
- }
- }
- }
- static zend_always_inline zval *_get_zval_ptr_undef(int op_type, znode_op node, int type EXECUTE_DATA_DC OPLINE_DC)
- {
- if (op_type & (IS_TMP_VAR|IS_VAR)) {
- if (!ZEND_DEBUG || op_type == IS_VAR) {
- return _get_zval_ptr_var(node.var EXECUTE_DATA_CC);
- } else {
- ZEND_ASSERT(op_type == IS_TMP_VAR);
- return _get_zval_ptr_tmp(node.var EXECUTE_DATA_CC);
- }
- } else {
- if (op_type == IS_CONST) {
- return RT_CONSTANT(opline, node);
- } else if (op_type == IS_CV) {
- return EX_VAR(node.var);
- } else {
- return NULL;
- }
- }
- }
- static zend_always_inline zval *_get_zval_ptr_ptr_var(uint32_t var EXECUTE_DATA_DC)
- {
- zval *ret = EX_VAR(var);
- if (EXPECTED(Z_TYPE_P(ret) == IS_INDIRECT)) {
- ret = Z_INDIRECT_P(ret);
- }
- return ret;
- }
- static inline zval *_get_zval_ptr_ptr(int op_type, znode_op node, int type EXECUTE_DATA_DC)
- {
- if (op_type == IS_CV) {
- return _get_zval_ptr_cv(node.var, type EXECUTE_DATA_CC);
- } else /* if (op_type == IS_VAR) */ {
- ZEND_ASSERT(op_type == IS_VAR);
- return _get_zval_ptr_ptr_var(node.var EXECUTE_DATA_CC);
- }
- }
- static inline ZEND_ATTRIBUTE_UNUSED zval *_get_obj_zval_ptr(int op_type, znode_op op, int type EXECUTE_DATA_DC OPLINE_DC)
- {
- if (op_type == IS_UNUSED) {
- return &EX(This);
- }
- return get_zval_ptr(op_type, op, type);
- }
- static inline ZEND_ATTRIBUTE_UNUSED zval *_get_obj_zval_ptr_undef(int op_type, znode_op op, int type EXECUTE_DATA_DC OPLINE_DC)
- {
- if (op_type == IS_UNUSED) {
- return &EX(This);
- }
- return get_zval_ptr_undef(op_type, op, type);
- }
- static inline ZEND_ATTRIBUTE_UNUSED zval *_get_obj_zval_ptr_ptr(int op_type, znode_op node, int type EXECUTE_DATA_DC)
- {
- if (op_type == IS_UNUSED) {
- return &EX(This);
- }
- return get_zval_ptr_ptr(op_type, node, type);
- }
- static inline void zend_assign_to_variable_reference(zval *variable_ptr, zval *value_ptr)
- {
- zend_reference *ref;
- if (EXPECTED(!Z_ISREF_P(value_ptr))) {
- ZVAL_NEW_REF(value_ptr, value_ptr);
- } else if (UNEXPECTED(variable_ptr == value_ptr)) {
- return;
- }
- ref = Z_REF_P(value_ptr);
- GC_ADDREF(ref);
- if (Z_REFCOUNTED_P(variable_ptr)) {
- zend_refcounted *garbage = Z_COUNTED_P(variable_ptr);
- if (GC_DELREF(garbage) == 0) {
- ZVAL_REF(variable_ptr, ref);
- rc_dtor_func(garbage);
- return;
- } else {
- gc_check_possible_root(garbage);
- }
- }
- ZVAL_REF(variable_ptr, ref);
- }
- static zend_never_inline zval* zend_assign_to_typed_property_reference(zend_property_info *prop_info, zval *prop, zval *value_ptr EXECUTE_DATA_DC)
- {
- if (!zend_verify_prop_assignable_by_ref(prop_info, value_ptr, EX_USES_STRICT_TYPES())) {
- return &EG(uninitialized_zval);
- }
- if (Z_ISREF_P(prop)) {
- ZEND_REF_DEL_TYPE_SOURCE(Z_REF_P(prop), prop_info);
- }
- zend_assign_to_variable_reference(prop, value_ptr);
- ZEND_REF_ADD_TYPE_SOURCE(Z_REF_P(prop), prop_info);
- return prop;
- }
- static zend_never_inline ZEND_COLD int zend_wrong_assign_to_variable_reference(zval *variable_ptr, zval *value_ptr OPLINE_DC EXECUTE_DATA_DC)
- {
- zend_error(E_NOTICE, "Only variables should be assigned by reference");
- if (UNEXPECTED(EG(exception) != NULL)) {
- return 0;
- }
- /* Use IS_TMP_VAR instead of IS_VAR to avoid ISREF check */
- Z_TRY_ADDREF_P(value_ptr);
- value_ptr = zend_assign_to_variable(variable_ptr, value_ptr, IS_TMP_VAR, EX_USES_STRICT_TYPES());
- return 1;
- }
- static zend_never_inline ZEND_COLD void zend_throw_auto_init_in_prop_error(zend_property_info *prop, const char *type) {
- zend_string *type_str = zend_type_to_string(prop->type);
- zend_type_error(
- "Cannot auto-initialize an %s inside property %s::$%s of type %s",
- type,
- ZSTR_VAL(prop->ce->name), zend_get_unmangled_property_name(prop->name),
- ZSTR_VAL(type_str)
- );
- zend_string_release(type_str);
- }
- static zend_never_inline ZEND_COLD void zend_throw_auto_init_in_ref_error(zend_property_info *prop, const char *type) {
- zend_string *type_str = zend_type_to_string(prop->type);
- zend_type_error(
- "Cannot auto-initialize an %s inside a reference held by property %s::$%s of type %s",
- type,
- ZSTR_VAL(prop->ce->name), zend_get_unmangled_property_name(prop->name),
- ZSTR_VAL(type_str)
- );
- zend_string_release(type_str);
- }
- static zend_never_inline ZEND_COLD void zend_throw_access_uninit_prop_by_ref_error(
- zend_property_info *prop) {
- zend_throw_error(NULL,
- "Cannot access uninitialized non-nullable property %s::$%s by reference",
- ZSTR_VAL(prop->ce->name),
- zend_get_unmangled_property_name(prop->name));
- }
- /* this should modify object only if it's empty */
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_throw_non_object_error(zval *object, zval *property OPLINE_DC EXECUTE_DATA_DC)
- {
- zend_string *tmp_property_name;
- zend_string *property_name = zval_get_tmp_string(property, &tmp_property_name);
- if (opline->opcode == ZEND_PRE_INC_OBJ
- || opline->opcode == ZEND_PRE_DEC_OBJ
- || opline->opcode == ZEND_POST_INC_OBJ
- || opline->opcode == ZEND_POST_DEC_OBJ) {
- zend_throw_error(NULL,
- "Attempt to increment/decrement property '%s' of non-object",
- ZSTR_VAL(property_name));
- } else if (opline->opcode == ZEND_FETCH_OBJ_W
- || opline->opcode == ZEND_FETCH_OBJ_RW
- || opline->opcode == ZEND_FETCH_OBJ_FUNC_ARG
- || opline->opcode == ZEND_ASSIGN_OBJ_REF) {
- zend_throw_error(NULL,
- "Attempt to modify property '%s' of non-object", ZSTR_VAL(property_name));
- } else {
- zend_throw_error(NULL,
- "Attempt to assign property '%s' of non-object", ZSTR_VAL(property_name));
- }
- zend_tmp_string_release(tmp_property_name);
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_NULL(EX_VAR(opline->result.var));
- }
- }
- static ZEND_COLD void zend_verify_type_error_common(
- const zend_function *zf, const zend_arg_info *arg_info,
- void **cache_slot, zval *value,
- const char **fname, const char **fsep, const char **fclass,
- zend_string **need_msg, const char **given_kind)
- {
- *fname = ZSTR_VAL(zf->common.function_name);
- if (zf->common.scope) {
- *fsep = "::";
- *fclass = ZSTR_VAL(zf->common.scope->name);
- } else {
- *fsep = "";
- *fclass = "";
- }
- *need_msg = zend_type_to_string_resolved(arg_info->type, zf->common.scope);
- if (value) {
- zend_bool has_class = ZEND_TYPE_HAS_CLASS(arg_info->type)
- || (ZEND_TYPE_FULL_MASK(arg_info->type) & MAY_BE_STATIC);
- if (has_class && Z_TYPE_P(value) == IS_OBJECT) {
- *given_kind = ZSTR_VAL(Z_OBJCE_P(value)->name);
- } else {
- *given_kind = zend_zval_type_name(value);
- }
- } else {
- *given_kind = "none";
- }
- }
- ZEND_API ZEND_COLD void zend_verify_arg_error(
- const zend_function *zf, const zend_arg_info *arg_info,
- int arg_num, void **cache_slot, zval *value)
- {
- zend_execute_data *ptr = EG(current_execute_data)->prev_execute_data;
- const char *fname, *fsep, *fclass;
- zend_string *need_msg;
- const char *given_msg;
- if (EG(exception)) {
- /* The type verification itself might have already thrown an exception
- * through a promoted warning. */
- return;
- }
- if (value) {
- zend_verify_type_error_common(
- zf, arg_info, cache_slot, value,
- &fname, &fsep, &fclass, &need_msg, &given_msg);
- if (zf->common.type == ZEND_USER_FUNCTION) {
- if (ptr && ptr->func && ZEND_USER_CODE(ptr->func->common.type)) {
- zend_type_error("%s%s%s(): Argument #%d ($%s) must be of type %s, %s given, called in %s on line %d",
- fclass, fsep, fname,
- arg_num, ZSTR_VAL(arg_info->name),
- ZSTR_VAL(need_msg), given_msg,
- ZSTR_VAL(ptr->func->op_array.filename), ptr->opline->lineno
- );
- } else {
- zend_type_error("%s%s%s(): Argument #%d ($%s) must be of type %s, %s given",
- fclass, fsep, fname, arg_num, ZSTR_VAL(arg_info->name), ZSTR_VAL(need_msg), given_msg
- );
- }
- } else {
- zend_type_error("%s%s%s(): Argument #%d ($%s) must be of type %s, %s given",
- fclass, fsep, fname, arg_num, ((zend_internal_arg_info*) arg_info)->name, ZSTR_VAL(need_msg), given_msg
- );
- }
- zend_string_release(need_msg);
- } else {
- zend_missing_arg_error(ptr);
- }
- }
- static zend_bool zend_verify_weak_scalar_type_hint(uint32_t type_mask, zval *arg)
- {
- zend_long lval;
- double dval;
- zend_string *str;
- zend_bool bval;
- /* Type preference order: int -> float -> string -> bool */
- if (type_mask & MAY_BE_LONG) {
- /* For an int|float union type and string value,
- * determine chosen type by is_numeric_string() semantics. */
- if ((type_mask & MAY_BE_DOUBLE) && Z_TYPE_P(arg) == IS_STRING) {
- zend_uchar type = is_numeric_string(Z_STRVAL_P(arg), Z_STRLEN_P(arg), &lval, &dval, -1);
- if (type == IS_LONG) {
- zend_string_release(Z_STR_P(arg));
- ZVAL_LONG(arg, lval);
- return 1;
- }
- if (type == IS_DOUBLE) {
- zend_string_release(Z_STR_P(arg));
- ZVAL_DOUBLE(arg, dval);
- return 1;
- }
- } else if (zend_parse_arg_long_weak(arg, &lval)) {
- zval_ptr_dtor(arg);
- ZVAL_LONG(arg, lval);
- return 1;
- }
- }
- if ((type_mask & MAY_BE_DOUBLE) && zend_parse_arg_double_weak(arg, &dval)) {
- zval_ptr_dtor(arg);
- ZVAL_DOUBLE(arg, dval);
- return 1;
- }
- if ((type_mask & MAY_BE_STRING) && zend_parse_arg_str_weak(arg, &str)) {
- /* on success "arg" is converted to IS_STRING */
- return 1;
- }
- if ((type_mask & MAY_BE_BOOL) == MAY_BE_BOOL && zend_parse_arg_bool_weak(arg, &bval)) {
- zval_ptr_dtor(arg);
- ZVAL_BOOL(arg, bval);
- return 1;
- }
- return 0;
- }
- #if ZEND_DEBUG
- /* Used to sanity-check internal arginfo types without performing any actual type conversions. */
- static zend_bool zend_verify_weak_scalar_type_hint_no_sideeffect(uint32_t type_mask, zval *arg)
- {
- zend_long lval;
- double dval;
- zend_bool bval;
- if (type_mask & MAY_BE_LONG) {
- if (Z_TYPE_P(arg) == IS_STRING) {
- /* Handle this case separately to avoid the "non well-formed" warning */
- zend_uchar type = is_numeric_string(Z_STRVAL_P(arg), Z_STRLEN_P(arg), NULL, &dval, 1);
- if (type == IS_LONG) {
- return 1;
- }
- if (type == IS_DOUBLE) {
- if ((type_mask & MAY_BE_DOUBLE)
- || (!zend_isnan(dval) && ZEND_DOUBLE_FITS_LONG(dval))) {
- return 1;
- }
- }
- }
- if (zend_parse_arg_long_weak(arg, &lval)) {
- return 1;
- }
- }
- if (type_mask & MAY_BE_DOUBLE) {
- if (Z_TYPE_P(arg) == IS_STRING) {
- /* Handle this case separately to avoid the "non well-formed" warning */
- if (is_numeric_string(Z_STRVAL_P(arg), Z_STRLEN_P(arg), NULL, NULL, 1) != 0) {
- return 1;
- }
- }
- if (zend_parse_arg_double_weak(arg, &dval)) {
- return 1;
- }
- }
- /* We don't call cast_object here, because this check must be side-effect free. As this
- * is only used for a sanity check of arginfo/zpp consistency, it's okay if we accept
- * more than actually allowed here. */
- if ((type_mask & MAY_BE_STRING) && (Z_TYPE_P(arg) < IS_STRING || Z_TYPE_P(arg) == IS_OBJECT)) {
- return 1;
- }
- if ((type_mask & MAY_BE_BOOL) == MAY_BE_BOOL && zend_parse_arg_bool_weak(arg, &bval)) {
- return 1;
- }
- return 0;
- }
- #endif
- ZEND_API zend_bool zend_verify_scalar_type_hint(uint32_t type_mask, zval *arg, zend_bool strict, zend_bool is_internal_arg)
- {
- if (UNEXPECTED(strict)) {
- /* SSTH Exception: IS_LONG may be accepted as IS_DOUBLE (converted) */
- if (!(type_mask & MAY_BE_DOUBLE) || Z_TYPE_P(arg) != IS_LONG) {
- return 0;
- }
- } else if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL)) {
- /* NULL may be accepted only by nullable hints (this is already checked).
- * As an exception for internal functions, null is allowed for scalar types in weak mode. */
- return is_internal_arg
- && (type_mask & (MAY_BE_TRUE|MAY_BE_FALSE|MAY_BE_LONG|MAY_BE_DOUBLE|MAY_BE_STRING));
- }
- #if ZEND_DEBUG
- if (is_internal_arg) {
- return zend_verify_weak_scalar_type_hint_no_sideeffect(type_mask, arg);
- }
- #endif
- return zend_verify_weak_scalar_type_hint(type_mask, arg);
- }
- ZEND_COLD zend_never_inline void zend_verify_property_type_error(zend_property_info *info, zval *property)
- {
- zend_string *type_str;
- /* we _may_ land here in case reading already errored and runtime cache thus has not been updated (i.e. it contains a valid but unrelated info) */
- if (EG(exception)) {
- return;
- }
- type_str = zend_type_to_string(info->type);
- zend_type_error("Cannot assign %s to property %s::$%s of type %s",
- Z_TYPE_P(property) == IS_OBJECT ? ZSTR_VAL(Z_OBJCE_P(property)->name) : zend_get_type_by_const(Z_TYPE_P(property)),
- ZSTR_VAL(info->ce->name),
- zend_get_unmangled_property_name(info->name),
- ZSTR_VAL(type_str));
- zend_string_release(type_str);
- }
- static zend_class_entry *resolve_single_class_type(zend_string *name, zend_class_entry *self_ce) {
- if (zend_string_equals_literal_ci(name, "self")) {
- /* We need to explicitly check for this here, to avoid updating the type in the trait and
- * later using the wrong "self" when the trait is used in a class. */
- if (UNEXPECTED((self_ce->ce_flags & ZEND_ACC_TRAIT) != 0)) {
- return NULL;
- }
- return self_ce;
- } else if (zend_string_equals_literal_ci(name, "parent")) {
- return self_ce->parent;
- } else {
- return zend_lookup_class_ex(name, NULL, ZEND_FETCH_CLASS_NO_AUTOLOAD);
- }
- }
- static zend_bool zend_check_and_resolve_property_class_type(
- zend_property_info *info, zend_class_entry *object_ce) {
- zend_class_entry *ce;
- if (ZEND_TYPE_HAS_LIST(info->type)) {
- zend_type *list_type;
- ZEND_TYPE_LIST_FOREACH(ZEND_TYPE_LIST(info->type), list_type) {
- if (ZEND_TYPE_HAS_NAME(*list_type)) {
- zend_string *name = ZEND_TYPE_NAME(*list_type);
- ce = resolve_single_class_type(name, info->ce);
- if (!ce) {
- continue;
- }
- zend_string_release(name);
- ZEND_TYPE_SET_CE(*list_type, ce);
- } else {
- ce = ZEND_TYPE_CE(*list_type);
- }
- if (instanceof_function(object_ce, ce)) {
- return 1;
- }
- } ZEND_TYPE_LIST_FOREACH_END();
- return 0;
- } else {
- if (UNEXPECTED(ZEND_TYPE_HAS_NAME(info->type))) {
- zend_string *name = ZEND_TYPE_NAME(info->type);
- ce = resolve_single_class_type(name, info->ce);
- if (UNEXPECTED(!ce)) {
- return 0;
- }
- zend_string_release(name);
- ZEND_TYPE_SET_CE(info->type, ce);
- } else {
- ce = ZEND_TYPE_CE(info->type);
- }
- return instanceof_function(object_ce, ce);
- }
- }
- static zend_always_inline zend_bool i_zend_check_property_type(zend_property_info *info, zval *property, zend_bool strict)
- {
- ZEND_ASSERT(!Z_ISREF_P(property));
- if (EXPECTED(ZEND_TYPE_CONTAINS_CODE(info->type, Z_TYPE_P(property)))) {
- return 1;
- }
- if (ZEND_TYPE_HAS_CLASS(info->type) && Z_TYPE_P(property) == IS_OBJECT
- && zend_check_and_resolve_property_class_type(info, Z_OBJCE_P(property))) {
- return 1;
- }
- uint32_t type_mask = ZEND_TYPE_FULL_MASK(info->type);
- ZEND_ASSERT(!(type_mask & (MAY_BE_CALLABLE|MAY_BE_STATIC)));
- if ((type_mask & MAY_BE_ITERABLE) && zend_is_iterable(property)) {
- return 1;
- }
- return zend_verify_scalar_type_hint(type_mask, property, strict, 0);
- }
- static zend_always_inline zend_bool i_zend_verify_property_type(zend_property_info *info, zval *property, zend_bool strict)
- {
- if (i_zend_check_property_type(info, property, strict)) {
- return 1;
- }
- zend_verify_property_type_error(info, property);
- return 0;
- }
- zend_bool zend_never_inline zend_verify_property_type(zend_property_info *info, zval *property, zend_bool strict) {
- return i_zend_verify_property_type(info, property, strict);
- }
- static zend_never_inline zval* zend_assign_to_typed_prop(zend_property_info *info, zval *property_val, zval *value EXECUTE_DATA_DC)
- {
- zval tmp;
- ZVAL_DEREF(value);
- ZVAL_COPY(&tmp, value);
- if (UNEXPECTED(!i_zend_verify_property_type(info, &tmp, EX_USES_STRICT_TYPES()))) {
- zval_ptr_dtor(&tmp);
- return &EG(uninitialized_zval);
- }
- return zend_assign_to_variable(property_val, &tmp, IS_TMP_VAR, EX_USES_STRICT_TYPES());
- }
- ZEND_API zend_bool zend_value_instanceof_static(zval *zv) {
- if (Z_TYPE_P(zv) != IS_OBJECT) {
- return 0;
- }
- zend_class_entry *called_scope = zend_get_called_scope(EG(current_execute_data));
- if (!called_scope) {
- return 0;
- }
- return instanceof_function(Z_OBJCE_P(zv), called_scope);
- }
- static zend_always_inline zend_bool zend_check_type_slow(
- zend_type type, zval *arg, zend_reference *ref, void **cache_slot, zend_class_entry *scope,
- zend_bool is_return_type, zend_bool is_internal)
- {
- uint32_t type_mask;
- if (ZEND_TYPE_HAS_CLASS(type) && Z_TYPE_P(arg) == IS_OBJECT) {
- zend_class_entry *ce;
- if (ZEND_TYPE_HAS_LIST(type)) {
- zend_type *list_type;
- ZEND_TYPE_LIST_FOREACH(ZEND_TYPE_LIST(type), list_type) {
- if (*cache_slot) {
- ce = *cache_slot;
- } else {
- ce = zend_fetch_class(ZEND_TYPE_NAME(*list_type),
- (ZEND_FETCH_CLASS_AUTO | ZEND_FETCH_CLASS_NO_AUTOLOAD));
- if (!ce) {
- cache_slot++;
- continue;
- }
- *cache_slot = ce;
- }
- if (instanceof_function(Z_OBJCE_P(arg), ce)) {
- return 1;
- }
- cache_slot++;
- } ZEND_TYPE_LIST_FOREACH_END();
- } else {
- if (EXPECTED(*cache_slot)) {
- ce = (zend_class_entry *) *cache_slot;
- } else {
- ce = zend_fetch_class(ZEND_TYPE_NAME(type), (ZEND_FETCH_CLASS_AUTO | ZEND_FETCH_CLASS_NO_AUTOLOAD));
- if (UNEXPECTED(!ce)) {
- goto builtin_types;
- }
- *cache_slot = (void *) ce;
- }
- if (instanceof_function(Z_OBJCE_P(arg), ce)) {
- return 1;
- }
- }
- }
- builtin_types:
- type_mask = ZEND_TYPE_FULL_MASK(type);
- if ((type_mask & MAY_BE_CALLABLE) && zend_is_callable(arg, 0, NULL)) {
- return 1;
- }
- if ((type_mask & MAY_BE_ITERABLE) && zend_is_iterable(arg)) {
- return 1;
- }
- if ((type_mask & MAY_BE_STATIC) && zend_value_instanceof_static(arg)) {
- return 1;
- }
- if (ref && ZEND_REF_HAS_TYPE_SOURCES(ref)) {
- /* We cannot have conversions for typed refs. */
- return 0;
- }
- if (is_internal && is_return_type) {
- /* For internal returns, the type has to match exactly, because we're not
- * going to check it for non-debug builds, and there will be no chance to
- * apply coercions. */
- return 0;
- }
- return zend_verify_scalar_type_hint(type_mask, arg,
- is_return_type ? ZEND_RET_USES_STRICT_TYPES() : ZEND_ARG_USES_STRICT_TYPES(),
- is_internal);
- /* Special handling for IS_VOID is not necessary (for return types),
- * because this case is already checked at compile-time. */
- }
- static zend_always_inline zend_bool zend_check_type(
- zend_type type, zval *arg, void **cache_slot, zend_class_entry *scope,
- zend_bool is_return_type, zend_bool is_internal)
- {
- zend_reference *ref = NULL;
- ZEND_ASSERT(ZEND_TYPE_IS_SET(type));
- if (UNEXPECTED(Z_ISREF_P(arg))) {
- ref = Z_REF_P(arg);
- arg = Z_REFVAL_P(arg);
- }
- if (EXPECTED(ZEND_TYPE_CONTAINS_CODE(type, Z_TYPE_P(arg)))) {
- return 1;
- }
- return zend_check_type_slow(type, arg, ref, cache_slot, scope, is_return_type, is_internal);
- }
- static zend_always_inline int zend_verify_recv_arg_type(zend_function *zf, uint32_t arg_num, zval *arg, void **cache_slot)
- {
- zend_arg_info *cur_arg_info;
- ZEND_ASSERT(arg_num <= zf->common.num_args);
- cur_arg_info = &zf->common.arg_info[arg_num-1];
- if (ZEND_TYPE_IS_SET(cur_arg_info->type)
- && UNEXPECTED(!zend_check_type(cur_arg_info->type, arg, cache_slot, zf->common.scope, 0, 0))) {
- zend_verify_arg_error(zf, cur_arg_info, arg_num, cache_slot, arg);
- return 0;
- }
- return 1;
- }
- static zend_always_inline int zend_verify_variadic_arg_type(zend_function *zf, uint32_t arg_num, zval *arg, void **cache_slot)
- {
- zend_arg_info *cur_arg_info;
- ZEND_ASSERT(arg_num > zf->common.num_args);
- ZEND_ASSERT(zf->common.fn_flags & ZEND_ACC_VARIADIC);
- cur_arg_info = &zf->common.arg_info[zf->common.num_args];
- if (ZEND_TYPE_IS_SET(cur_arg_info->type)
- && UNEXPECTED(!zend_check_type(cur_arg_info->type, arg, cache_slot, zf->common.scope, 0, 0))) {
- zend_verify_arg_error(zf, cur_arg_info, arg_num, cache_slot, arg);
- return 0;
- }
- return 1;
- }
- static zend_never_inline ZEND_ATTRIBUTE_UNUSED int zend_verify_internal_arg_types(zend_function *fbc, zend_execute_data *call)
- {
- uint32_t i;
- uint32_t num_args = ZEND_CALL_NUM_ARGS(call);
- zval *arg = ZEND_CALL_ARG(call, 1);
- for (i = 0; i < num_args; ++i) {
- zend_arg_info *cur_arg_info;
- void *dummy_cache_slot = NULL;
- if (EXPECTED(i < fbc->common.num_args)) {
- cur_arg_info = &fbc->common.arg_info[i];
- } else if (UNEXPECTED(fbc->common.fn_flags & ZEND_ACC_VARIADIC)) {
- cur_arg_info = &fbc->common.arg_info[fbc->common.num_args];
- } else {
- break;
- }
- if (ZEND_TYPE_IS_SET(cur_arg_info->type)
- && UNEXPECTED(!zend_check_type(cur_arg_info->type, arg, &dummy_cache_slot, fbc->common.scope, 0, /* is_internal */ 1))) {
- return 0;
- }
- arg++;
- }
- return 1;
- }
- #if ZEND_DEBUG
- /* Determine whether an internal call should throw, because the passed arguments violate
- * an arginfo constraint. This is only checked in debug builds. In release builds, we
- * trust that arginfo matches what is enforced by zend_parse_parameters. */
- static zend_always_inline zend_bool zend_internal_call_should_throw(zend_function *fbc, zend_execute_data *call)
- {
- if (fbc->common.required_num_args > ZEND_CALL_NUM_ARGS(call)) {
- return 1;
- }
- if ((fbc->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) &&
- !zend_verify_internal_arg_types(fbc, call)) {
- return 1;
- }
- return 0;
- }
- static ZEND_COLD void zend_internal_call_arginfo_violation(zend_function *fbc)
- {
- zend_error(E_CORE_ERROR, "Arginfo / zpp mismatch during call of %s%s%s()",
- fbc->common.scope ? ZSTR_VAL(fbc->common.scope->name) : "",
- fbc->common.scope ? "::" : "",
- ZSTR_VAL(fbc->common.function_name));
- }
- #endif
- ZEND_API ZEND_COLD void ZEND_FASTCALL zend_missing_arg_error(zend_execute_data *execute_data)
- {
- zend_execute_data *ptr = EX(prev_execute_data);
- if (ptr && ptr->func && ZEND_USER_CODE(ptr->func->common.type)) {
- zend_throw_error(zend_ce_argument_count_error, "Too few arguments to function %s%s%s(), %d passed in %s on line %d and %s %d expected",
- EX(func)->common.scope ? ZSTR_VAL(EX(func)->common.scope->name) : "",
- EX(func)->common.scope ? "::" : "",
- ZSTR_VAL(EX(func)->common.function_name),
- EX_NUM_ARGS(),
- ZSTR_VAL(ptr->func->op_array.filename),
- ptr->opline->lineno,
- EX(func)->common.required_num_args == EX(func)->common.num_args ? "exactly" : "at least",
- EX(func)->common.required_num_args);
- } else {
- zend_throw_error(zend_ce_argument_count_error, "Too few arguments to function %s%s%s(), %d passed and %s %d expected",
- EX(func)->common.scope ? ZSTR_VAL(EX(func)->common.scope->name) : "",
- EX(func)->common.scope ? "::" : "",
- ZSTR_VAL(EX(func)->common.function_name),
- EX_NUM_ARGS(),
- EX(func)->common.required_num_args == EX(func)->common.num_args ? "exactly" : "at least",
- EX(func)->common.required_num_args);
- }
- }
- ZEND_API ZEND_COLD void zend_verify_return_error(
- const zend_function *zf, void **cache_slot, zval *value)
- {
- const zend_arg_info *arg_info = &zf->common.arg_info[-1];
- const char *fname, *fsep, *fclass;
- zend_string *need_msg;
- const char *given_msg;
- zend_verify_type_error_common(
- zf, arg_info, cache_slot, value,
- &fname, &fsep, &fclass, &need_msg, &given_msg);
- zend_type_error("Return value of %s%s%s() must be of type %s, %s returned",
- fclass, fsep, fname, ZSTR_VAL(need_msg), given_msg);
- zend_string_release(need_msg);
- }
- #if ZEND_DEBUG
- static ZEND_COLD void zend_verify_internal_return_error(
- const zend_function *zf, void **cache_slot, zval *value)
- {
- const zend_arg_info *arg_info = &zf->common.arg_info[-1];
- const char *fname, *fsep, *fclass;
- zend_string *need_msg;
- const char *given_msg;
- zend_verify_type_error_common(
- zf, arg_info, cache_slot, value,
- &fname, &fsep, &fclass, &need_msg, &given_msg);
- zend_error_noreturn(E_CORE_ERROR, "Return value of %s%s%s() must be of type %s, %s returned",
- fclass, fsep, fname, ZSTR_VAL(need_msg), given_msg);
- }
- static ZEND_COLD void zend_verify_void_return_error(const zend_function *zf, const char *returned_msg, const char *returned_kind)
- {
- const char *fname = ZSTR_VAL(zf->common.function_name);
- const char *fsep;
- const char *fclass;
- if (zf->common.scope) {
- fsep = "::";
- fclass = ZSTR_VAL(zf->common.scope->name);
- } else {
- fsep = "";
- fclass = "";
- }
- zend_type_error("%s%s%s() must not return a value, %s%s returned",
- fclass, fsep, fname, returned_msg, returned_kind);
- }
- static int zend_verify_internal_return_type(zend_function *zf, zval *ret)
- {
- zend_internal_arg_info *ret_info = zf->internal_function.arg_info - 1;
- void *dummy_cache_slot = NULL;
- if (ZEND_TYPE_FULL_MASK(ret_info->type) & MAY_BE_VOID) {
- if (UNEXPECTED(Z_TYPE_P(ret) != IS_NULL)) {
- zend_verify_void_return_error(zf, zend_zval_type_name(ret), "");
- return 0;
- }
- return 1;
- }
- if (UNEXPECTED(!zend_check_type(ret_info->type, ret, &dummy_cache_slot, NULL, 1, /* is_internal */ 1))) {
- zend_verify_internal_return_error(zf, &dummy_cache_slot, ret);
- return 0;
- }
- return 1;
- }
- #endif
- static ZEND_COLD int zend_verify_missing_return_type(const zend_function *zf, void **cache_slot)
- {
- /* VERIFY_RETURN_TYPE is not emitted for "void" functions, so this is always an error. */
- zend_verify_return_error(zf, cache_slot, NULL);
- return 0;
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_use_object_as_array(void)
- {
- zend_throw_error(NULL, "Cannot use object as array");
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_illegal_offset(void)
- {
- zend_type_error("Illegal offset type");
- }
- static zend_never_inline void zend_assign_to_object_dim(zval *object, zval *dim, zval *value OPLINE_DC EXECUTE_DATA_DC)
- {
- Z_OBJ_HT_P(object)->write_dimension(Z_OBJ_P(object), dim, value);
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_COPY(EX_VAR(opline->result.var), value);
- }
- }
- static zend_always_inline int zend_binary_op(zval *ret, zval *op1, zval *op2 OPLINE_DC)
- {
- static const binary_op_type zend_binary_ops[] = {
- add_function,
- sub_function,
- mul_function,
- div_function,
- mod_function,
- shift_left_function,
- shift_right_function,
- concat_function,
- bitwise_or_function,
- bitwise_and_function,
- bitwise_xor_function,
- pow_function
- };
- /* size_t cast makes GCC to better optimize 64-bit PIC code */
- size_t opcode = (size_t)opline->extended_value;
- return zend_binary_ops[opcode - ZEND_ADD](ret, op1, op2);
- }
- static zend_never_inline void zend_binary_assign_op_obj_dim(zval *object, zval *property OPLINE_DC EXECUTE_DATA_DC)
- {
- zval *value;
- zval *z;
- zval rv, res;
- value = get_op_data_zval_ptr_r((opline+1)->op1_type, (opline+1)->op1);
- if ((z = Z_OBJ_HT_P(object)->read_dimension(Z_OBJ_P(object), property, BP_VAR_R, &rv)) != NULL) {
- if (zend_binary_op(&res, z, value OPLINE_CC) == SUCCESS) {
- Z_OBJ_HT_P(object)->write_dimension(Z_OBJ_P(object), property, &res);
- }
- if (z == &rv) {
- zval_ptr_dtor(&rv);
- }
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_COPY(EX_VAR(opline->result.var), &res);
- }
- zval_ptr_dtor(&res);
- } else {
- zend_use_object_as_array();
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_NULL(EX_VAR(opline->result.var));
- }
- }
- FREE_OP((opline+1)->op1_type, (opline+1)->op1.var);
- }
- static zend_never_inline void zend_binary_assign_op_typed_ref(zend_reference *ref, zval *value OPLINE_DC EXECUTE_DATA_DC)
- {
- zval z_copy;
- zend_binary_op(&z_copy, &ref->val, value OPLINE_CC);
- if (EXPECTED(zend_verify_ref_assignable_zval(ref, &z_copy, EX_USES_STRICT_TYPES()))) {
- zval_ptr_dtor(&ref->val);
- ZVAL_COPY_VALUE(&ref->val, &z_copy);
- } else {
- zval_ptr_dtor(&z_copy);
- }
- }
- static zend_never_inline void zend_binary_assign_op_typed_prop(zend_property_info *prop_info, zval *zptr, zval *value OPLINE_DC EXECUTE_DATA_DC)
- {
- zval z_copy;
- zend_binary_op(&z_copy, zptr, value OPLINE_CC);
- if (EXPECTED(zend_verify_property_type(prop_info, &z_copy, EX_USES_STRICT_TYPES()))) {
- zval_ptr_dtor(zptr);
- ZVAL_COPY_VALUE(zptr, &z_copy);
- } else {
- zval_ptr_dtor(&z_copy);
- }
- }
- static zend_never_inline zend_long zend_check_string_offset(zval *dim, int type EXECUTE_DATA_DC)
- {
- zend_long offset;
- try_again:
- if (UNEXPECTED(Z_TYPE_P(dim) != IS_LONG)) {
- switch(Z_TYPE_P(dim)) {
- 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'", Z_STRVAL_P(dim));
- }
- break;
- case IS_UNDEF:
- ZVAL_UNDEFINED_OP2();
- case IS_DOUBLE:
- case IS_NULL:
- case IS_FALSE:
- case IS_TRUE:
- zend_error(E_WARNING, "String offset cast occurred");
- break;
- case IS_REFERENCE:
- dim = Z_REFVAL_P(dim);
- goto try_again;
- default:
- zend_illegal_offset();
- break;
- }
- offset = zval_get_long_func(dim);
- } else {
- offset = Z_LVAL_P(dim);
- }
- return offset;
- }
- static zend_never_inline ZEND_COLD void zend_wrong_string_offset(EXECUTE_DATA_D)
- {
- const char *msg = NULL;
- const zend_op *opline = EX(opline);
- const zend_op *end;
- uint32_t var;
- if (UNEXPECTED(EG(exception) != NULL)) {
- return;
- }
- switch (opline->opcode) {
- case ZEND_ASSIGN_OP:
- case ZEND_ASSIGN_DIM_OP:
- case ZEND_ASSIGN_OBJ_OP:
- case ZEND_ASSIGN_STATIC_PROP_OP:
- msg = "Cannot use assign-op operators with string offsets";
- break;
- case ZEND_FETCH_DIM_W:
- case ZEND_FETCH_DIM_RW:
- case ZEND_FETCH_DIM_FUNC_ARG:
- case ZEND_FETCH_DIM_UNSET:
- case ZEND_FETCH_LIST_W:
- /* TODO: Encode the "reason" into opline->extended_value??? */
- var = opline->result.var;
- opline++;
- end = EG(current_execute_data)->func->op_array.opcodes +
- EG(current_execute_data)->func->op_array.last;
- while (opline < end) {
- if (opline->op1_type == IS_VAR && opline->op1.var == var) {
- switch (opline->opcode) {
- case ZEND_ASSIGN_OBJ_OP:
- msg = "Cannot use string offset as an object";
- break;
- case ZEND_ASSIGN_DIM_OP:
- msg = "Cannot use string offset as an array";
- break;
- case ZEND_ASSIGN_STATIC_PROP_OP:
- case ZEND_ASSIGN_OP:
- msg = "Cannot use assign-op operators with string offsets";
- break;
- case ZEND_PRE_INC_OBJ:
- case ZEND_PRE_DEC_OBJ:
- case ZEND_POST_INC_OBJ:
- case ZEND_POST_DEC_OBJ:
- case ZEND_PRE_INC:
- case ZEND_PRE_DEC:
- case ZEND_POST_INC:
- case ZEND_POST_DEC:
- msg = "Cannot increment/decrement string offsets";
- break;
- case ZEND_FETCH_DIM_W:
- case ZEND_FETCH_DIM_RW:
- case ZEND_FETCH_DIM_FUNC_ARG:
- case ZEND_FETCH_DIM_UNSET:
- case ZEND_FETCH_LIST_W:
- case ZEND_ASSIGN_DIM:
- msg = "Cannot use string offset as an array";
- break;
- case ZEND_FETCH_OBJ_W:
- case ZEND_FETCH_OBJ_RW:
- case ZEND_FETCH_OBJ_FUNC_ARG:
- case ZEND_FETCH_OBJ_UNSET:
- case ZEND_ASSIGN_OBJ:
- msg = "Cannot use string offset as an object";
- break;
- case ZEND_ASSIGN_REF:
- case ZEND_ADD_ARRAY_ELEMENT:
- case ZEND_INIT_ARRAY:
- case ZEND_MAKE_REF:
- msg = "Cannot create references to/from string offsets";
- break;
- case ZEND_RETURN_BY_REF:
- case ZEND_VERIFY_RETURN_TYPE:
- msg = "Cannot return string offsets by reference";
- break;
- case ZEND_UNSET_DIM:
- case ZEND_UNSET_OBJ:
- msg = "Cannot unset string offsets";
- break;
- case ZEND_YIELD:
- msg = "Cannot yield string offsets by reference";
- break;
- case ZEND_SEND_REF:
- case ZEND_SEND_VAR_EX:
- case ZEND_SEND_FUNC_ARG:
- msg = "Only variables can be passed by reference";
- break;
- case ZEND_FE_RESET_RW:
- msg = "Cannot iterate on string offsets by reference";
- break;
- EMPTY_SWITCH_DEFAULT_CASE();
- }
- break;
- }
- if (opline->op2_type == IS_VAR && opline->op2.var == var) {
- ZEND_ASSERT(opline->opcode == ZEND_ASSIGN_REF);
- msg = "Cannot create references to/from string offsets";
- break;
- }
- }
- break;
- EMPTY_SWITCH_DEFAULT_CASE();
- }
- ZEND_ASSERT(msg != NULL);
- zend_throw_error(NULL, "%s", msg);
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_wrong_property_read(zval *property)
- {
- zend_string *tmp_property_name;
- zend_string *property_name = zval_get_tmp_string(property, &tmp_property_name);
- zend_error(E_WARNING, "Trying to get property '%s' of non-object", ZSTR_VAL(property_name));
- zend_tmp_string_release(tmp_property_name);
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_deprecated_function(const zend_function *fbc)
- {
- zend_error(E_DEPRECATED, "Function %s%s%s() is deprecated",
- fbc->common.scope ? ZSTR_VAL(fbc->common.scope->name) : "",
- fbc->common.scope ? "::" : "",
- ZSTR_VAL(fbc->common.function_name));
- }
- static zend_never_inline void zend_assign_to_string_offset(zval *str, zval *dim, zval *value OPLINE_DC EXECUTE_DATA_DC)
- {
- zend_uchar c;
- size_t string_len;
- zend_long offset;
- offset = zend_check_string_offset(dim, BP_VAR_W EXECUTE_DATA_CC);
- if (offset < -(zend_long)Z_STRLEN_P(str)) {
- /* Error on negative offset */
- zend_error(E_WARNING, "Illegal string offset: " ZEND_LONG_FMT, offset);
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_NULL(EX_VAR(opline->result.var));
- }
- return;
- }
- if (Z_TYPE_P(value) != IS_STRING) {
- /* Convert to string, just the time to pick the 1st byte */
- zend_string *tmp = zval_try_get_string_func(value);
- if (UNEXPECTED(!tmp)) {
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_UNDEF(EX_VAR(opline->result.var));
- }
- return;
- }
- string_len = ZSTR_LEN(tmp);
- c = (zend_uchar)ZSTR_VAL(tmp)[0];
- zend_string_release_ex(tmp, 0);
- } else {
- string_len = Z_STRLEN_P(value);
- c = (zend_uchar)Z_STRVAL_P(value)[0];
- }
- if (string_len != 1) {
- if (string_len == 0) {
- /* Error on empty input string */
- zend_throw_error(NULL, "Cannot assign an empty string to a string offset");
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_NULL(EX_VAR(opline->result.var));
- }
- return;
- }
- zend_error(E_WARNING, "Only the first byte will be assigned to the string offset");
- }
- if (offset < 0) { /* Handle negative offset */
- offset += (zend_long)Z_STRLEN_P(str);
- }
- if ((size_t)offset >= Z_STRLEN_P(str)) {
- /* Extend string if needed */
- zend_long old_len = Z_STRLEN_P(str);
- ZVAL_NEW_STR(str, zend_string_extend(Z_STR_P(str), offset + 1, 0));
- memset(Z_STRVAL_P(str) + old_len, ' ', offset - old_len);
- Z_STRVAL_P(str)[offset+1] = 0;
- } else if (!Z_REFCOUNTED_P(str)) {
- ZVAL_NEW_STR(str, zend_string_init(Z_STRVAL_P(str), Z_STRLEN_P(str), 0));
- } else if (Z_REFCOUNT_P(str) > 1) {
- Z_DELREF_P(str);
- ZVAL_NEW_STR(str, zend_string_init(Z_STRVAL_P(str), Z_STRLEN_P(str), 0));
- } else {
- zend_string_forget_hash_val(Z_STR_P(str));
- }
- Z_STRVAL_P(str)[offset] = c;
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- /* Return the new character */
- ZVAL_INTERNED_STR(EX_VAR(opline->result.var), ZSTR_CHAR(c));
- }
- }
- static zend_property_info *zend_get_prop_not_accepting_double(zend_reference *ref)
- {
- zend_property_info *prop;
- ZEND_REF_FOREACH_TYPE_SOURCES(ref, prop) {
- if (!(ZEND_TYPE_FULL_MASK(prop->type) & MAY_BE_DOUBLE)) {
- return prop;
- }
- } ZEND_REF_FOREACH_TYPE_SOURCES_END();
- return NULL;
- }
- static ZEND_COLD zend_long zend_throw_incdec_ref_error(
- zend_reference *ref, zend_property_info *error_prop OPLINE_DC)
- {
- zend_string *type_str = zend_type_to_string(error_prop->type);
- if (ZEND_IS_INCREMENT(opline->opcode)) {
- zend_type_error(
- "Cannot increment a reference held by property %s::$%s of type %s past its maximal value",
- ZSTR_VAL(error_prop->ce->name),
- zend_get_unmangled_property_name(error_prop->name),
- ZSTR_VAL(type_str));
- zend_string_release(type_str);
- return ZEND_LONG_MAX;
- } else {
- zend_type_error(
- "Cannot decrement a reference held by property %s::$%s of type %s past its minimal value",
- ZSTR_VAL(error_prop->ce->name),
- zend_get_unmangled_property_name(error_prop->name),
- ZSTR_VAL(type_str));
- zend_string_release(type_str);
- return ZEND_LONG_MIN;
- }
- }
- static ZEND_COLD zend_long zend_throw_incdec_prop_error(zend_property_info *prop OPLINE_DC) {
- zend_string *type_str = zend_type_to_string(prop->type);
- if (ZEND_IS_INCREMENT(opline->opcode)) {
- zend_type_error("Cannot increment property %s::$%s of type %s past its maximal value",
- ZSTR_VAL(prop->ce->name),
- zend_get_unmangled_property_name(prop->name),
- ZSTR_VAL(type_str));
- zend_string_release(type_str);
- return ZEND_LONG_MAX;
- } else {
- zend_type_error("Cannot decrement property %s::$%s of type %s past its minimal value",
- ZSTR_VAL(prop->ce->name),
- zend_get_unmangled_property_name(prop->name),
- ZSTR_VAL(type_str));
- zend_string_release(type_str);
- return ZEND_LONG_MIN;
- }
- }
- static void zend_incdec_typed_ref(zend_reference *ref, zval *copy OPLINE_DC EXECUTE_DATA_DC)
- {
- zval tmp;
- zval *var_ptr = &ref->val;
- if (!copy) {
- copy = &tmp;
- }
- ZVAL_COPY(copy, var_ptr);
- if (ZEND_IS_INCREMENT(opline->opcode)) {
- increment_function(var_ptr);
- } else {
- decrement_function(var_ptr);
- }
- if (UNEXPECTED(Z_TYPE_P(var_ptr) == IS_DOUBLE) && Z_TYPE_P(copy) == IS_LONG) {
- zend_property_info *error_prop = zend_get_prop_not_accepting_double(ref);
- if (UNEXPECTED(error_prop)) {
- zend_long val = zend_throw_incdec_ref_error(ref, error_prop OPLINE_CC);
- ZVAL_LONG(var_ptr, val);
- }
- } else if (UNEXPECTED(!zend_verify_ref_assignable_zval(ref, var_ptr, EX_USES_STRICT_TYPES()))) {
- zval_ptr_dtor(var_ptr);
- ZVAL_COPY_VALUE(var_ptr, copy);
- ZVAL_UNDEF(copy);
- } else if (copy == &tmp) {
- zval_ptr_dtor(&tmp);
- }
- }
- static void zend_incdec_typed_prop(zend_property_info *prop_info, zval *var_ptr, zval *copy OPLINE_DC EXECUTE_DATA_DC)
- {
- zval tmp;
- if (!copy) {
- copy = &tmp;
- }
- ZVAL_COPY(copy, var_ptr);
- if (ZEND_IS_INCREMENT(opline->opcode)) {
- increment_function(var_ptr);
- } else {
- decrement_function(var_ptr);
- }
- if (UNEXPECTED(Z_TYPE_P(var_ptr) == IS_DOUBLE) && Z_TYPE_P(copy) == IS_LONG) {
- if (!(ZEND_TYPE_FULL_MASK(prop_info->type) & MAY_BE_DOUBLE)) {
- zend_long val = zend_throw_incdec_prop_error(prop_info OPLINE_CC);
- ZVAL_LONG(var_ptr, val);
- }
- } else if (UNEXPECTED(!zend_verify_property_type(prop_info, var_ptr, EX_USES_STRICT_TYPES()))) {
- zval_ptr_dtor(var_ptr);
- ZVAL_COPY_VALUE(var_ptr, copy);
- ZVAL_UNDEF(copy);
- } else if (copy == &tmp) {
- zval_ptr_dtor(&tmp);
- }
- }
- static void zend_pre_incdec_property_zval(zval *prop, zend_property_info *prop_info OPLINE_DC EXECUTE_DATA_DC)
- {
- if (EXPECTED(Z_TYPE_P(prop) == IS_LONG)) {
- if (ZEND_IS_INCREMENT(opline->opcode)) {
- fast_long_increment_function(prop);
- } else {
- fast_long_decrement_function(prop);
- }
- if (UNEXPECTED(Z_TYPE_P(prop) != IS_LONG) && UNEXPECTED(prop_info)
- && !(ZEND_TYPE_FULL_MASK(prop_info->type) & MAY_BE_DOUBLE)) {
- zend_long val = zend_throw_incdec_prop_error(prop_info OPLINE_CC);
- ZVAL_LONG(prop, val);
- }
- } else {
- do {
- if (Z_ISREF_P(prop)) {
- zend_reference *ref = Z_REF_P(prop);
- prop = Z_REFVAL_P(prop);
- if (UNEXPECTED(ZEND_REF_HAS_TYPE_SOURCES(ref))) {
- zend_incdec_typed_ref(ref, NULL OPLINE_CC EXECUTE_DATA_CC);
- break;
- }
- }
- if (UNEXPECTED(prop_info)) {
- zend_incdec_typed_prop(prop_info, prop, NULL OPLINE_CC EXECUTE_DATA_CC);
- } else if (ZEND_IS_INCREMENT(opline->opcode)) {
- increment_function(prop);
- } else {
- decrement_function(prop);
- }
- } while (0);
- }
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_COPY(EX_VAR(opline->result.var), prop);
- }
- }
- static void zend_post_incdec_property_zval(zval *prop, zend_property_info *prop_info OPLINE_DC EXECUTE_DATA_DC)
- {
- if (EXPECTED(Z_TYPE_P(prop) == IS_LONG)) {
- ZVAL_LONG(EX_VAR(opline->result.var), Z_LVAL_P(prop));
- if (ZEND_IS_INCREMENT(opline->opcode)) {
- fast_long_increment_function(prop);
- } else {
- fast_long_decrement_function(prop);
- }
- if (UNEXPECTED(Z_TYPE_P(prop) != IS_LONG) && UNEXPECTED(prop_info)
- && !(ZEND_TYPE_FULL_MASK(prop_info->type) & MAY_BE_DOUBLE)) {
- zend_long val = zend_throw_incdec_prop_error(prop_info OPLINE_CC);
- ZVAL_LONG(prop, val);
- }
- } else {
- if (Z_ISREF_P(prop)) {
- zend_reference *ref = Z_REF_P(prop);
- prop = Z_REFVAL_P(prop);
- if (ZEND_REF_HAS_TYPE_SOURCES(ref)) {
- zend_incdec_typed_ref(ref, EX_VAR(opline->result.var) OPLINE_CC EXECUTE_DATA_CC);
- return;
- }
- }
- if (UNEXPECTED(prop_info)) {
- zend_incdec_typed_prop(prop_info, prop, EX_VAR(opline->result.var) OPLINE_CC EXECUTE_DATA_CC);
- } else {
- ZVAL_COPY(EX_VAR(opline->result.var), prop);
- if (ZEND_IS_INCREMENT(opline->opcode)) {
- increment_function(prop);
- } else {
- decrement_function(prop);
- }
- }
- }
- }
- static zend_never_inline void zend_post_incdec_overloaded_property(zend_object *object, zend_string *name, void **cache_slot OPLINE_DC EXECUTE_DATA_DC)
- {
- zval rv;
- zval *z;
- zval z_copy;
- GC_ADDREF(object);
- z =object->handlers->read_property(object, name, BP_VAR_R, cache_slot, &rv);
- if (UNEXPECTED(EG(exception))) {
- OBJ_RELEASE(object);
- ZVAL_UNDEF(EX_VAR(opline->result.var));
- return;
- }
- ZVAL_COPY_DEREF(&z_copy, z);
- ZVAL_COPY(EX_VAR(opline->result.var), &z_copy);
- if (ZEND_IS_INCREMENT(opline->opcode)) {
- increment_function(&z_copy);
- } else {
- decrement_function(&z_copy);
- }
- object->handlers->write_property(object, name, &z_copy, cache_slot);
- OBJ_RELEASE(object);
- zval_ptr_dtor(&z_copy);
- zval_ptr_dtor(z);
- }
- static zend_never_inline void zend_pre_incdec_overloaded_property(zend_object *object, zend_string *name, void **cache_slot OPLINE_DC EXECUTE_DATA_DC)
- {
- zval rv;
- zval *z;
- zval z_copy;
- GC_ADDREF(object);
- z = object->handlers->read_property(object, name, BP_VAR_R, cache_slot, &rv);
- if (UNEXPECTED(EG(exception))) {
- OBJ_RELEASE(object);
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_NULL(EX_VAR(opline->result.var));
- }
- return;
- }
- ZVAL_COPY_DEREF(&z_copy, z);
- if (ZEND_IS_INCREMENT(opline->opcode)) {
- increment_function(&z_copy);
- } else {
- decrement_function(&z_copy);
- }
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_COPY(EX_VAR(opline->result.var), &z_copy);
- }
- object->handlers->write_property(object, name, &z_copy, cache_slot);
- OBJ_RELEASE(object);
- zval_ptr_dtor(&z_copy);
- zval_ptr_dtor(z);
- }
- static zend_never_inline void zend_assign_op_overloaded_property(zend_object *object, zend_string *name, void **cache_slot, zval *value OPLINE_DC EXECUTE_DATA_DC)
- {
- zval *z;
- zval rv, res;
- GC_ADDREF(object);
- z = object->handlers->read_property(object, name, BP_VAR_R, cache_slot, &rv);
- if (UNEXPECTED(EG(exception))) {
- OBJ_RELEASE(object);
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_UNDEF(EX_VAR(opline->result.var));
- }
- return;
- }
- if (zend_binary_op(&res, z, value OPLINE_CC) == SUCCESS) {
- object->handlers->write_property(object, name, &res, cache_slot);
- }
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_COPY(EX_VAR(opline->result.var), &res);
- }
- zval_ptr_dtor(z);
- zval_ptr_dtor(&res);
- OBJ_RELEASE(object);
- }
- /* Utility Functions for Extensions */
- static void zend_extension_statement_handler(const zend_extension *extension, zend_execute_data *frame)
- {
- if (extension->statement_handler) {
- extension->statement_handler(frame);
- }
- }
- static void zend_extension_fcall_begin_handler(const zend_extension *extension, zend_execute_data *frame)
- {
- if (extension->fcall_begin_handler) {
- extension->fcall_begin_handler(frame);
- }
- }
- static void zend_extension_fcall_end_handler(const zend_extension *extension, zend_execute_data *frame)
- {
- if (extension->fcall_end_handler) {
- extension->fcall_end_handler(frame);
- }
- }
- static zend_always_inline HashTable *zend_get_target_symbol_table(int fetch_type EXECUTE_DATA_DC)
- {
- HashTable *ht;
- if (EXPECTED(fetch_type & (ZEND_FETCH_GLOBAL_LOCK | ZEND_FETCH_GLOBAL))) {
- ht = &EG(symbol_table);
- } else {
- ZEND_ASSERT(fetch_type & ZEND_FETCH_LOCAL);
- if (!(EX_CALL_INFO() & ZEND_CALL_HAS_SYMBOL_TABLE)) {
- zend_rebuild_symbol_table();
- }
- ht = EX(symbol_table);
- }
- return ht;
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_undefined_offset(zend_long lval)
- {
- zend_error(E_NOTICE, "Undefined offset: " ZEND_LONG_FMT, lval);
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_undefined_index(const zend_string *offset)
- {
- zend_error(E_NOTICE, "Undefined index: %s", ZSTR_VAL(offset));
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_undefined_method(const zend_class_entry *ce, const zend_string *method)
- {
- zend_throw_error(NULL, "Call to undefined method %s::%s()", ZSTR_VAL(ce->name), ZSTR_VAL(method));
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_invalid_method_call(zval *object, zval *function_name)
- {
- zend_throw_error(NULL, "Call to a member function %s() on %s", Z_STRVAL_P(function_name), zend_get_type_by_const(Z_TYPE_P(object)));
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_non_static_method_call(const zend_function *fbc)
- {
- zend_throw_error(
- zend_ce_error,
- "Non-static method %s::%s() cannot be called statically",
- ZSTR_VAL(fbc->common.scope->name), ZSTR_VAL(fbc->common.function_name));
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_param_must_be_ref(const zend_function *func, uint32_t arg_num)
- {
- const char *arg_name = get_function_arg_name(func, arg_num);
- zend_error(E_WARNING, "%s%s%s(): Argument #%d%s%s%s must be passed by reference, value given",
- func->common.scope ? ZSTR_VAL(func->common.scope->name) : "",
- func->common.scope ? "::" : "",
- ZSTR_VAL(func->common.function_name),
- arg_num,
- arg_name ? " ($" : "",
- arg_name ? arg_name : "",
- arg_name ? ")" : ""
- );
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_use_scalar_as_array(void)
- {
- zend_throw_error(NULL, "Cannot use a scalar value as an array");
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_cannot_add_element(void)
- {
- zend_throw_error(NULL, "Cannot add element to the array as the next element is already occupied");
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_use_resource_as_offset(const zval *dim)
- {
- zend_error(E_WARNING, "Resource ID#%d used as offset, casting to integer (%d)", Z_RES_HANDLE_P(dim), Z_RES_HANDLE_P(dim));
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_use_new_element_for_string(void)
- {
- zend_throw_error(NULL, "[] operator not supported for strings");
- }
- static ZEND_COLD void zend_binary_assign_op_dim_slow(zval *container, zval *dim OPLINE_DC EXECUTE_DATA_DC)
- {
- if (UNEXPECTED(Z_TYPE_P(container) == IS_STRING)) {
- if (opline->op2_type == IS_UNUSED) {
- zend_use_new_element_for_string();
- } else {
- zend_check_string_offset(dim, BP_VAR_RW EXECUTE_DATA_CC);
- zend_wrong_string_offset(EXECUTE_DATA_C);
- }
- } else {
- zend_use_scalar_as_array();
- }
- FREE_OP((opline+1)->op1_type, (opline+1)->op1.var);
- }
- static zend_never_inline zend_uchar slow_index_convert(const zval *dim, zend_value *value EXECUTE_DATA_DC)
- {
- switch (Z_TYPE_P(dim)) {
- case IS_UNDEF:
- ZVAL_UNDEFINED_OP2();
- /* break missing intentionally */
- case IS_NULL:
- value->str = ZSTR_EMPTY_ALLOC();
- return IS_STRING;
- case IS_DOUBLE:
- value->lval = zend_dval_to_lval(Z_DVAL_P(dim));
- return IS_LONG;
- case IS_RESOURCE:
- zend_use_resource_as_offset(dim);
- value->lval = Z_RES_HANDLE_P(dim);
- return IS_LONG;
- case IS_FALSE:
- value->lval = 0;
- return IS_LONG;
- case IS_TRUE:
- value->lval = 1;
- return IS_LONG;
- default:
- zend_illegal_offset();
- return IS_NULL;
- }
- }
- static zend_always_inline zval *zend_fetch_dimension_address_inner(HashTable *ht, const zval *dim, int dim_type, int type EXECUTE_DATA_DC)
- {
- zval *retval = NULL;
- zend_string *offset_key;
- zend_ulong hval;
- try_again:
- if (EXPECTED(Z_TYPE_P(dim) == IS_LONG)) {
- hval = Z_LVAL_P(dim);
- num_index:
- ZEND_HASH_INDEX_FIND(ht, hval, retval, num_undef);
- return retval;
- num_undef:
- switch (type) {
- case BP_VAR_R:
- zend_undefined_offset(hval);
- /* break missing intentionally */
- case BP_VAR_UNSET:
- case BP_VAR_IS:
- retval = &EG(uninitialized_zval);
- break;
- case BP_VAR_RW:
- zend_undefined_offset(hval);
- retval = zend_hash_index_update(ht, hval, &EG(uninitialized_zval));
- break;
- case BP_VAR_W:
- retval = zend_hash_index_add_new(ht, hval, &EG(uninitialized_zval));
- break;
- }
- } else if (EXPECTED(Z_TYPE_P(dim) == IS_STRING)) {
- offset_key = Z_STR_P(dim);
- if (ZEND_CONST_COND(dim_type != IS_CONST, 1)) {
- if (ZEND_HANDLE_NUMERIC(offset_key, hval)) {
- goto num_index;
- }
- }
- str_index:
- retval = zend_hash_find_ex(ht, offset_key, ZEND_CONST_COND(dim_type == IS_CONST, 0));
- if (retval) {
- /* support for $GLOBALS[...] */
- if (UNEXPECTED(Z_TYPE_P(retval) == IS_INDIRECT)) {
- retval = Z_INDIRECT_P(retval);
- if (UNEXPECTED(Z_TYPE_P(retval) == IS_UNDEF)) {
- switch (type) {
- case BP_VAR_R:
- zend_undefined_index(offset_key);
- /* break missing intentionally */
- case BP_VAR_UNSET:
- case BP_VAR_IS:
- retval = &EG(uninitialized_zval);
- break;
- case BP_VAR_RW:
- zend_undefined_index(offset_key);
- /* break missing intentionally */
- case BP_VAR_W:
- ZVAL_NULL(retval);
- break;
- }
- }
- }
- } else {
- switch (type) {
- case BP_VAR_R:
- zend_undefined_index(offset_key);
- /* break missing intentionally */
- case BP_VAR_UNSET:
- case BP_VAR_IS:
- retval = &EG(uninitialized_zval);
- break;
- case BP_VAR_RW:
- zend_undefined_index(offset_key);
- retval = zend_hash_update(ht, offset_key, &EG(uninitialized_zval));
- break;
- case BP_VAR_W:
- retval = zend_hash_add_new(ht, offset_key, &EG(uninitialized_zval));
- break;
- }
- }
- } else if (EXPECTED(Z_TYPE_P(dim) == IS_REFERENCE)) {
- dim = Z_REFVAL_P(dim);
- goto try_again;
- } else {
- zend_value val;
- zend_uchar t = slow_index_convert(dim, &val EXECUTE_DATA_CC);
- if (t == IS_STRING) {
- offset_key = val.str;
- goto str_index;
- } else if (t == IS_LONG) {
- hval = val.lval;
- goto num_index;
- } else {
- retval = (type == BP_VAR_W || type == BP_VAR_RW) ?
- NULL : &EG(uninitialized_zval);
- }
- }
- return retval;
- }
- static zend_never_inline zval* ZEND_FASTCALL zend_fetch_dimension_address_inner_W(HashTable *ht, const zval *dim EXECUTE_DATA_DC)
- {
- return zend_fetch_dimension_address_inner(ht, dim, IS_TMP_VAR, BP_VAR_W EXECUTE_DATA_CC);
- }
- static zend_never_inline zval* ZEND_FASTCALL zend_fetch_dimension_address_inner_W_CONST(HashTable *ht, const zval *dim EXECUTE_DATA_DC)
- {
- return zend_fetch_dimension_address_inner(ht, dim, IS_CONST, BP_VAR_W EXECUTE_DATA_CC);
- }
- static zend_never_inline zval* ZEND_FASTCALL zend_fetch_dimension_address_inner_RW(HashTable *ht, const zval *dim EXECUTE_DATA_DC)
- {
- return zend_fetch_dimension_address_inner(ht, dim, IS_TMP_VAR, BP_VAR_RW EXECUTE_DATA_CC);
- }
- static zend_never_inline zval* ZEND_FASTCALL zend_fetch_dimension_address_inner_RW_CONST(HashTable *ht, const zval *dim EXECUTE_DATA_DC)
- {
- return zend_fetch_dimension_address_inner(ht, dim, IS_CONST, BP_VAR_RW EXECUTE_DATA_CC);
- }
- static zend_always_inline void zend_fetch_dimension_address(zval *result, zval *container, zval *dim, int dim_type, int type EXECUTE_DATA_DC)
- {
- zval *retval;
- if (EXPECTED(Z_TYPE_P(container) == IS_ARRAY)) {
- try_array:
- SEPARATE_ARRAY(container);
- fetch_from_array:
- if (dim == NULL) {
- retval = zend_hash_next_index_insert(Z_ARRVAL_P(container), &EG(uninitialized_zval));
- if (UNEXPECTED(retval == NULL)) {
- zend_cannot_add_element();
- ZVAL_UNDEF(result);
- return;
- }
- } else {
- retval = zend_fetch_dimension_address_inner(Z_ARRVAL_P(container), dim, dim_type, type EXECUTE_DATA_CC);
- if (UNEXPECTED(!retval)) {
- ZVAL_UNDEF(result);
- return;
- }
- }
- ZVAL_INDIRECT(result, retval);
- return;
- } else if (EXPECTED(Z_TYPE_P(container) == IS_REFERENCE)) {
- zend_reference *ref = Z_REF_P(container);
- container = Z_REFVAL_P(container);
- if (EXPECTED(Z_TYPE_P(container) == IS_ARRAY)) {
- goto try_array;
- } else if (EXPECTED(Z_TYPE_P(container) <= IS_FALSE)) {
- if (type != BP_VAR_UNSET) {
- if (ZEND_REF_HAS_TYPE_SOURCES(ref)) {
- if (UNEXPECTED(!zend_verify_ref_array_assignable(ref))) {
- ZVAL_UNDEF(result);
- return;
- }
- }
- array_init(container);
- goto fetch_from_array;
- } else {
- goto return_null;
- }
- }
- }
- if (UNEXPECTED(Z_TYPE_P(container) == IS_STRING)) {
- if (dim == NULL) {
- zend_use_new_element_for_string();
- } else {
- zend_check_string_offset(dim, type EXECUTE_DATA_CC);
- zend_wrong_string_offset(EXECUTE_DATA_C);
- }
- ZVAL_UNDEF(result);
- } else if (EXPECTED(Z_TYPE_P(container) == IS_OBJECT)) {
- if (ZEND_CONST_COND(dim_type == IS_CV, dim != NULL) && UNEXPECTED(Z_TYPE_P(dim) == IS_UNDEF)) {
- dim = ZVAL_UNDEFINED_OP2();
- }
- if (dim_type == IS_CONST && Z_EXTRA_P(dim) == ZEND_EXTRA_VALUE) {
- dim++;
- }
- retval = Z_OBJ_HT_P(container)->read_dimension(Z_OBJ_P(container), dim, type, result);
- if (UNEXPECTED(retval == &EG(uninitialized_zval))) {
- zend_class_entry *ce = Z_OBJCE_P(container);
- ZVAL_NULL(result);
- zend_error(E_NOTICE, "Indirect modification of overloaded element of %s has no effect", ZSTR_VAL(ce->name));
- } else if (EXPECTED(retval && Z_TYPE_P(retval) != IS_UNDEF)) {
- if (!Z_ISREF_P(retval)) {
- if (result != retval) {
- ZVAL_COPY(result, retval);
- retval = result;
- }
- if (Z_TYPE_P(retval) != IS_OBJECT) {
- zend_class_entry *ce = Z_OBJCE_P(container);
- zend_error(E_NOTICE, "Indirect modification of overloaded element of %s has no effect", ZSTR_VAL(ce->name));
- }
- } else if (UNEXPECTED(Z_REFCOUNT_P(retval) == 1)) {
- ZVAL_UNREF(retval);
- }
- if (result != retval) {
- ZVAL_INDIRECT(result, retval);
- }
- } else {
- ZEND_ASSERT(EG(exception) && "read_dimension() returned NULL without exception");
- ZVAL_UNDEF(result);
- }
- } else {
- if (EXPECTED(Z_TYPE_P(container) <= IS_FALSE)) {
- if (type != BP_VAR_W && UNEXPECTED(Z_TYPE_P(container) == IS_UNDEF)) {
- ZVAL_UNDEFINED_OP1();
- }
- if (type != BP_VAR_UNSET) {
- array_init(container);
- goto fetch_from_array;
- } else {
- return_null:
- /* for read-mode only */
- if (ZEND_CONST_COND(dim_type == IS_CV, dim != NULL) && UNEXPECTED(Z_TYPE_P(dim) == IS_UNDEF)) {
- ZVAL_UNDEFINED_OP2();
- }
- ZVAL_NULL(result);
- }
- } else {
- if (type == BP_VAR_UNSET) {
- zend_throw_error(NULL, "Cannot unset offset in a non-array variable");
- ZVAL_UNDEF(result);
- } else {
- zend_use_scalar_as_array();
- ZVAL_UNDEF(result);
- }
- }
- }
- }
- static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_W(zval *container_ptr, zval *dim, int dim_type OPLINE_DC EXECUTE_DATA_DC)
- {
- zval *result = EX_VAR(opline->result.var);
- zend_fetch_dimension_address(result, container_ptr, dim, dim_type, BP_VAR_W EXECUTE_DATA_CC);
- }
- static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_RW(zval *container_ptr, zval *dim, int dim_type OPLINE_DC EXECUTE_DATA_DC)
- {
- zval *result = EX_VAR(opline->result.var);
- zend_fetch_dimension_address(result, container_ptr, dim, dim_type, BP_VAR_RW EXECUTE_DATA_CC);
- }
- static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_UNSET(zval *container_ptr, zval *dim, int dim_type OPLINE_DC EXECUTE_DATA_DC)
- {
- zval *result = EX_VAR(opline->result.var);
- zend_fetch_dimension_address(result, container_ptr, dim, dim_type, BP_VAR_UNSET EXECUTE_DATA_CC);
- }
- static zend_always_inline void zend_fetch_dimension_address_read(zval *result, zval *container, zval *dim, int dim_type, int type, int is_list, int slow EXECUTE_DATA_DC)
- {
- zval *retval;
- if (!slow) {
- if (EXPECTED(Z_TYPE_P(container) == IS_ARRAY)) {
- try_array:
- retval = zend_fetch_dimension_address_inner(Z_ARRVAL_P(container), dim, dim_type, type EXECUTE_DATA_CC);
- ZVAL_COPY_DEREF(result, retval);
- return;
- } else if (EXPECTED(Z_TYPE_P(container) == IS_REFERENCE)) {
- container = Z_REFVAL_P(container);
- if (EXPECTED(Z_TYPE_P(container) == IS_ARRAY)) {
- goto try_array;
- }
- }
- }
- if (!is_list && EXPECTED(Z_TYPE_P(container) == IS_STRING)) {
- zend_long offset;
- try_string_offset:
- if (UNEXPECTED(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) {
- ZVAL_NULL(result);
- return;
- }
- zend_error(E_WARNING, "Illegal string offset '%s'", Z_STRVAL_P(dim));
- break;
- case IS_UNDEF:
- ZVAL_UNDEFINED_OP2();
- case IS_DOUBLE:
- case IS_NULL:
- case IS_FALSE:
- case IS_TRUE:
- if (type != BP_VAR_IS) {
- zend_error(E_WARNING, "String offset cast occurred");
- }
- break;
- case IS_REFERENCE:
- dim = Z_REFVAL_P(dim);
- goto try_string_offset;
- default:
- zend_illegal_offset();
- break;
- }
- offset = zval_get_long_func(dim);
- } else {
- offset = Z_LVAL_P(dim);
- }
- if (UNEXPECTED(Z_STRLEN_P(container) < ((offset < 0) ? -(size_t)offset : ((size_t)offset + 1)))) {
- if (type != BP_VAR_IS) {
- zend_error(E_WARNING, "Uninitialized string offset: " ZEND_LONG_FMT, offset);
- ZVAL_EMPTY_STRING(result);
- } else {
- ZVAL_NULL(result);
- }
- } else {
- zend_uchar c;
- zend_long real_offset;
- real_offset = (UNEXPECTED(offset < 0)) /* Handle negative offset */
- ? (zend_long)Z_STRLEN_P(container) + offset : offset;
- c = (zend_uchar)Z_STRVAL_P(container)[real_offset];
- ZVAL_INTERNED_STR(result, ZSTR_CHAR(c));
- }
- } else if (EXPECTED(Z_TYPE_P(container) == IS_OBJECT)) {
- if (ZEND_CONST_COND(dim_type == IS_CV, 1) && UNEXPECTED(Z_TYPE_P(dim) == IS_UNDEF)) {
- dim = ZVAL_UNDEFINED_OP2();
- }
- if (dim_type == IS_CONST && Z_EXTRA_P(dim) == ZEND_EXTRA_VALUE) {
- dim++;
- }
- retval = Z_OBJ_HT_P(container)->read_dimension(Z_OBJ_P(container), dim, type, result);
- ZEND_ASSERT(result != NULL);
- if (retval) {
- if (result != retval) {
- ZVAL_COPY_DEREF(result, retval);
- } else if (UNEXPECTED(Z_ISREF_P(retval))) {
- zend_unwrap_reference(result);
- }
- } else {
- ZVAL_NULL(result);
- }
- } else {
- if (type != BP_VAR_IS && UNEXPECTED(Z_TYPE_P(container) == IS_UNDEF)) {
- container = ZVAL_UNDEFINED_OP1();
- }
- if (ZEND_CONST_COND(dim_type == IS_CV, 1) && UNEXPECTED(Z_TYPE_P(dim) == IS_UNDEF)) {
- ZVAL_UNDEFINED_OP2();
- }
- if (!is_list && type != BP_VAR_IS) {
- zend_error(E_WARNING, "Trying to access array offset on value of type %s",
- zend_zval_type_name(container));
- }
- ZVAL_NULL(result);
- }
- }
- static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_read_R(zval *container, zval *dim, int dim_type OPLINE_DC EXECUTE_DATA_DC)
- {
- zval *result = EX_VAR(opline->result.var);
- zend_fetch_dimension_address_read(result, container, dim, dim_type, BP_VAR_R, 0, 0 EXECUTE_DATA_CC);
- }
- static zend_never_inline void zend_fetch_dimension_address_read_R_slow(zval *container, zval *dim OPLINE_DC EXECUTE_DATA_DC)
- {
- zval *result = EX_VAR(opline->result.var);
- zend_fetch_dimension_address_read(result, container, dim, IS_CV, BP_VAR_R, 0, 1 EXECUTE_DATA_CC);
- }
- static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_read_IS(zval *container, zval *dim, int dim_type OPLINE_DC EXECUTE_DATA_DC)
- {
- zval *result = EX_VAR(opline->result.var);
- zend_fetch_dimension_address_read(result, container, dim, dim_type, BP_VAR_IS, 0, 0 EXECUTE_DATA_CC);
- }
- static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_LIST_r(zval *container, zval *dim, int dim_type OPLINE_DC EXECUTE_DATA_DC)
- {
- zval *result = EX_VAR(opline->result.var);
- zend_fetch_dimension_address_read(result, container, dim, dim_type, BP_VAR_R, 1, 0 EXECUTE_DATA_CC);
- }
- ZEND_API void zend_fetch_dimension_const(zval *result, zval *container, zval *dim, int type)
- {
- zend_fetch_dimension_address_read(result, container, dim, IS_TMP_VAR, type, 0, 0 NO_EXECUTE_DATA_CC);
- }
- static zend_never_inline zval* ZEND_FASTCALL zend_find_array_dim_slow(HashTable *ht, zval *offset EXECUTE_DATA_DC)
- {
- zend_ulong hval;
- if (Z_TYPE_P(offset) == IS_DOUBLE) {
- hval = zend_dval_to_lval(Z_DVAL_P(offset));
- num_idx:
- return zend_hash_index_find(ht, hval);
- } else if (Z_TYPE_P(offset) == IS_NULL) {
- str_idx:
- return zend_hash_find_ex_ind(ht, ZSTR_EMPTY_ALLOC(), 1);
- } else if (Z_TYPE_P(offset) == IS_FALSE) {
- hval = 0;
- goto num_idx;
- } else if (Z_TYPE_P(offset) == IS_TRUE) {
- hval = 1;
- goto num_idx;
- } else if (Z_TYPE_P(offset) == IS_RESOURCE) {
- zend_use_resource_as_offset(offset);
- hval = Z_RES_HANDLE_P(offset);
- goto num_idx;
- } else if (/*OP2_TYPE == IS_CV &&*/ Z_TYPE_P(offset) == IS_UNDEF) {
- ZVAL_UNDEFINED_OP2();
- goto str_idx;
- } else {
- zend_type_error("Illegal offset type in isset or empty");
- return NULL;
- }
- }
- static zend_never_inline int ZEND_FASTCALL zend_isset_dim_slow(zval *container, zval *offset EXECUTE_DATA_DC)
- {
- if (/*OP2_TYPE == IS_CV &&*/ UNEXPECTED(Z_TYPE_P(offset) == IS_UNDEF)) {
- offset = ZVAL_UNDEFINED_OP2();
- }
- if (/*OP1_TYPE != IS_CONST &&*/ EXPECTED(Z_TYPE_P(container) == IS_OBJECT)) {
- return Z_OBJ_HT_P(container)->has_dimension(Z_OBJ_P(container), offset, 0);
- } else if (EXPECTED(Z_TYPE_P(container) == IS_STRING)) { /* string offsets */
- zend_long lval;
- if (EXPECTED(Z_TYPE_P(offset) == IS_LONG)) {
- lval = Z_LVAL_P(offset);
- str_offset:
- if (UNEXPECTED(lval < 0)) { /* Handle negative offset */
- lval += (zend_long)Z_STRLEN_P(container);
- }
- if (EXPECTED(lval >= 0) && (size_t)lval < Z_STRLEN_P(container)) {
- return 1;
- } else {
- return 0;
- }
- } else {
- /*if (OP2_TYPE & (IS_CV|IS_VAR)) {*/
- ZVAL_DEREF(offset);
- /*}*/
- if (Z_TYPE_P(offset) < IS_STRING /* simple scalar types */
- || (Z_TYPE_P(offset) == IS_STRING /* or numeric string */
- && IS_LONG == is_numeric_string(Z_STRVAL_P(offset), Z_STRLEN_P(offset), NULL, NULL, 0))) {
- lval = zval_get_long(offset);
- goto str_offset;
- }
- return 0;
- }
- } else {
- return 0;
- }
- }
- static zend_never_inline int ZEND_FASTCALL zend_isempty_dim_slow(zval *container, zval *offset EXECUTE_DATA_DC)
- {
- if (/*OP2_TYPE == IS_CV &&*/ UNEXPECTED(Z_TYPE_P(offset) == IS_UNDEF)) {
- offset = ZVAL_UNDEFINED_OP2();
- }
- if (/*OP1_TYPE != IS_CONST &&*/ EXPECTED(Z_TYPE_P(container) == IS_OBJECT)) {
- return !Z_OBJ_HT_P(container)->has_dimension(Z_OBJ_P(container), offset, 1);
- } else if (EXPECTED(Z_TYPE_P(container) == IS_STRING)) { /* string offsets */
- zend_long lval;
- if (EXPECTED(Z_TYPE_P(offset) == IS_LONG)) {
- lval = Z_LVAL_P(offset);
- str_offset:
- if (UNEXPECTED(lval < 0)) { /* Handle negative offset */
- lval += (zend_long)Z_STRLEN_P(container);
- }
- if (EXPECTED(lval >= 0) && (size_t)lval < Z_STRLEN_P(container)) {
- return (Z_STRVAL_P(container)[lval] == '0');
- } else {
- return 1;
- }
- } else {
- /*if (OP2_TYPE & (IS_CV|IS_VAR)) {*/
- ZVAL_DEREF(offset);
- /*}*/
- if (Z_TYPE_P(offset) < IS_STRING /* simple scalar types */
- || (Z_TYPE_P(offset) == IS_STRING /* or numeric string */
- && IS_LONG == is_numeric_string(Z_STRVAL_P(offset), Z_STRLEN_P(offset), NULL, NULL, 0))) {
- lval = zval_get_long(offset);
- goto str_offset;
- }
- return 1;
- }
- } else {
- return 1;
- }
- }
- static zend_never_inline zend_bool ZEND_FASTCALL zend_array_key_exists_fast(HashTable *ht, zval *key OPLINE_DC EXECUTE_DATA_DC)
- {
- zend_string *str;
- zend_ulong hval;
- try_again:
- if (EXPECTED(Z_TYPE_P(key) == IS_STRING)) {
- str = Z_STR_P(key);
- if (ZEND_HANDLE_NUMERIC(str, hval)) {
- goto num_key;
- }
- str_key:
- return zend_hash_find_ind(ht, str) != NULL;
- } else if (EXPECTED(Z_TYPE_P(key) == IS_LONG)) {
- hval = Z_LVAL_P(key);
- num_key:
- return zend_hash_index_find(ht, hval) != NULL;
- } else if (EXPECTED(Z_ISREF_P(key))) {
- key = Z_REFVAL_P(key);
- goto try_again;
- } else if (Z_TYPE_P(key) == IS_DOUBLE) {
- hval = zend_dval_to_lval(Z_DVAL_P(key));
- goto num_key;
- } else if (Z_TYPE_P(key) == IS_FALSE) {
- hval = 0;
- goto num_key;
- } else if (Z_TYPE_P(key) == IS_TRUE) {
- hval = 1;
- goto num_key;
- } else if (Z_TYPE_P(key) == IS_RESOURCE) {
- zend_use_resource_as_offset(key);
- hval = Z_RES_HANDLE_P(key);
- goto num_key;
- } else if (Z_TYPE_P(key) <= IS_NULL) {
- if (UNEXPECTED(Z_TYPE_P(key) == IS_UNDEF)) {
- ZVAL_UNDEFINED_OP1();
- }
- str = ZSTR_EMPTY_ALLOC();
- goto str_key;
- } else {
- zend_type_error("Illegal offset type");
- return 0;
- }
- }
- static ZEND_COLD void ZEND_FASTCALL zend_array_key_exists_error(
- zval *subject, zval *key OPLINE_DC EXECUTE_DATA_DC)
- {
- if (Z_TYPE_P(key) == IS_UNDEF) {
- ZVAL_UNDEFINED_OP1();
- }
- if (Z_TYPE_P(subject) == IS_UNDEF) {
- ZVAL_UNDEFINED_OP2();
- }
- if (!EG(exception)) {
- zend_type_error("array_key_exists(): Argument #2 ($array) must be of type array, %s given",
- zend_get_type_by_const(Z_TYPE_P(subject))
- );
- }
- }
- static zend_always_inline zend_bool promotes_to_array(zval *val) {
- return Z_TYPE_P(val) <= IS_FALSE
- || (Z_ISREF_P(val) && Z_TYPE_P(Z_REFVAL_P(val)) <= IS_FALSE);
- }
- static zend_always_inline zend_bool check_type_array_assignable(zend_type type) {
- if (!ZEND_TYPE_IS_SET(type)) {
- return 1;
- }
- return (ZEND_TYPE_FULL_MASK(type) & (MAY_BE_ITERABLE|MAY_BE_ARRAY)) != 0;
- }
- /* Checks whether an array can be assigned to the reference. Throws error if not assignable. */
- ZEND_API zend_bool zend_verify_ref_array_assignable(zend_reference *ref) {
- zend_property_info *prop;
- ZEND_ASSERT(ZEND_REF_HAS_TYPE_SOURCES(ref));
- ZEND_REF_FOREACH_TYPE_SOURCES(ref, prop) {
- if (!check_type_array_assignable(prop->type)) {
- zend_throw_auto_init_in_ref_error(prop, "array");
- return 0;
- }
- } ZEND_REF_FOREACH_TYPE_SOURCES_END();
- return 1;
- }
- static zend_property_info *zend_object_fetch_property_type_info(
- zend_object *obj, zval *slot)
- {
- if (EXPECTED(!ZEND_CLASS_HAS_TYPE_HINTS(obj->ce))) {
- return NULL;
- }
- /* Not a declared property */
- if (UNEXPECTED(slot < obj->properties_table ||
- slot >= obj->properties_table + obj->ce->default_properties_count)) {
- return NULL;
- }
- return zend_get_typed_property_info_for_slot(obj, slot);
- }
- static zend_never_inline zend_bool zend_handle_fetch_obj_flags(
- zval *result, zval *ptr, zend_object *obj, zend_property_info *prop_info, uint32_t flags)
- {
- switch (flags) {
- case ZEND_FETCH_DIM_WRITE:
- if (promotes_to_array(ptr)) {
- if (!prop_info) {
- prop_info = zend_object_fetch_property_type_info(obj, ptr);
- if (!prop_info) {
- break;
- }
- }
- if (!check_type_array_assignable(prop_info->type)) {
- zend_throw_auto_init_in_prop_error(prop_info, "array");
- if (result) ZVAL_ERROR(result);
- return 0;
- }
- }
- break;
- case ZEND_FETCH_REF:
- if (Z_TYPE_P(ptr) != IS_REFERENCE) {
- if (!prop_info) {
- prop_info = zend_object_fetch_property_type_info(obj, ptr);
- if (!prop_info) {
- break;
- }
- }
- if (Z_TYPE_P(ptr) == IS_UNDEF) {
- if (!ZEND_TYPE_ALLOW_NULL(prop_info->type)) {
- zend_throw_access_uninit_prop_by_ref_error(prop_info);
- if (result) ZVAL_ERROR(result);
- return 0;
- }
- ZVAL_NULL(ptr);
- }
- ZVAL_NEW_REF(ptr, ptr);
- ZEND_REF_ADD_TYPE_SOURCE(Z_REF_P(ptr), prop_info);
- }
- break;
- EMPTY_SWITCH_DEFAULT_CASE()
- }
- return 1;
- }
- static zend_always_inline void zend_fetch_property_address(zval *result, zval *container, uint32_t container_op_type, zval *prop_ptr, uint32_t prop_op_type, void **cache_slot, int type, uint32_t flags, zend_bool init_undef OPLINE_DC EXECUTE_DATA_DC)
- {
- zval *ptr;
- zend_object *zobj;
- zend_string *name, *tmp_name;
- if (container_op_type != IS_UNUSED && UNEXPECTED(Z_TYPE_P(container) != IS_OBJECT)) {
- do {
- if (Z_ISREF_P(container) && Z_TYPE_P(Z_REFVAL_P(container)) == IS_OBJECT) {
- container = Z_REFVAL_P(container);
- break;
- }
- if (container_op_type == IS_CV
- && type != BP_VAR_W
- && UNEXPECTED(Z_TYPE_P(container) == IS_UNDEF)) {
- ZVAL_UNDEFINED_OP1();
- }
- /* this should modify object only if it's empty */
- if (type == BP_VAR_UNSET) {
- ZVAL_NULL(result);
- return;
- }
- zend_throw_non_object_error(container, prop_ptr OPLINE_CC EXECUTE_DATA_CC);
- ZVAL_ERROR(result);
- return;
- } while (0);
- }
- zobj = Z_OBJ_P(container);
- if (prop_op_type == IS_CONST &&
- EXPECTED(zobj->ce == CACHED_PTR_EX(cache_slot))) {
- uintptr_t prop_offset = (uintptr_t)CACHED_PTR_EX(cache_slot + 1);
- if (EXPECTED(IS_VALID_PROPERTY_OFFSET(prop_offset))) {
- ptr = OBJ_PROP(zobj, prop_offset);
- if (EXPECTED(Z_TYPE_P(ptr) != IS_UNDEF)) {
- ZVAL_INDIRECT(result, ptr);
- if (flags) {
- zend_property_info *prop_info = CACHED_PTR_EX(cache_slot + 2);
- if (prop_info) {
- zend_handle_fetch_obj_flags(result, ptr, NULL, prop_info, flags);
- }
- }
- return;
- }
- } else if (EXPECTED(zobj->properties != NULL)) {
- if (UNEXPECTED(GC_REFCOUNT(zobj->properties) > 1)) {
- if (EXPECTED(!(GC_FLAGS(zobj->properties) & IS_ARRAY_IMMUTABLE))) {
- GC_DELREF(zobj->properties);
- }
- zobj->properties = zend_array_dup(zobj->properties);
- }
- ptr = zend_hash_find_ex(zobj->properties, Z_STR_P(prop_ptr), 1);
- if (EXPECTED(ptr)) {
- ZVAL_INDIRECT(result, ptr);
- return;
- }
- }
- }
- if (prop_op_type == IS_CONST) {
- name = Z_STR_P(prop_ptr);
- } else {
- name = zval_get_tmp_string(prop_ptr, &tmp_name);
- }
- ptr = zobj->handlers->get_property_ptr_ptr(zobj, name, type, cache_slot);
- if (NULL == ptr) {
- ptr = zobj->handlers->read_property(zobj, name, type, cache_slot, result);
- if (ptr == result) {
- if (UNEXPECTED(Z_ISREF_P(ptr) && Z_REFCOUNT_P(ptr) == 1)) {
- ZVAL_UNREF(ptr);
- }
- goto end;
- }
- } else if (UNEXPECTED(Z_ISERROR_P(ptr))) {
- ZVAL_ERROR(result);
- goto end;
- }
- ZVAL_INDIRECT(result, ptr);
- if (flags) {
- zend_property_info *prop_info;
- if (prop_op_type == IS_CONST) {
- prop_info = CACHED_PTR_EX(cache_slot + 2);
- if (prop_info) {
- if (UNEXPECTED(!zend_handle_fetch_obj_flags(result, ptr, NULL, prop_info, flags))) {
- goto end;
- }
- }
- } else {
- if (UNEXPECTED(!zend_handle_fetch_obj_flags(result, ptr, Z_OBJ_P(container), NULL, flags))) {
- goto end;
- }
- }
- }
- if (init_undef && UNEXPECTED(Z_TYPE_P(ptr) == IS_UNDEF)) {
- ZVAL_NULL(ptr);
- }
- end:
- if (prop_op_type != IS_CONST) {
- zend_tmp_string_release(tmp_name);
- }
- }
- static zend_always_inline void zend_assign_to_property_reference(zval *container, uint32_t container_op_type, zval *prop_ptr, uint32_t prop_op_type, zval *value_ptr OPLINE_DC EXECUTE_DATA_DC)
- {
- zval variable, *variable_ptr = &variable;
- void **cache_addr = (prop_op_type == IS_CONST) ? CACHE_ADDR(opline->extended_value & ~ZEND_RETURNS_FUNCTION) : NULL;
- zend_fetch_property_address(variable_ptr, container, container_op_type, prop_ptr, prop_op_type,
- cache_addr, BP_VAR_W, 0, 0 OPLINE_CC EXECUTE_DATA_CC);
- if (EXPECTED(Z_TYPE_P(variable_ptr) == IS_INDIRECT)) {
- variable_ptr = Z_INDIRECT_P(variable_ptr);
- if (/*OP_DATA_TYPE == IS_VAR &&*/
- (opline->extended_value & ZEND_RETURNS_FUNCTION) &&
- UNEXPECTED(!Z_ISREF_P(value_ptr))) {
- if (UNEXPECTED(!zend_wrong_assign_to_variable_reference(
- variable_ptr, value_ptr OPLINE_CC EXECUTE_DATA_CC))) {
- variable_ptr = &EG(uninitialized_zval);
- }
- } else {
- zend_property_info *prop_info = NULL;
- if (prop_op_type == IS_CONST) {
- prop_info = (zend_property_info *) CACHED_PTR_EX(cache_addr + 2);
- } else {
- ZVAL_DEREF(container);
- prop_info = zend_object_fetch_property_type_info(Z_OBJ_P(container), variable_ptr);
- }
- if (UNEXPECTED(prop_info)) {
- variable_ptr = zend_assign_to_typed_property_reference(prop_info, variable_ptr, value_ptr EXECUTE_DATA_CC);
- } else {
- zend_assign_to_variable_reference(variable_ptr, value_ptr);
- }
- }
- } else if (Z_ISERROR_P(variable_ptr)) {
- variable_ptr = &EG(uninitialized_zval);
- } else {
- zend_throw_error(NULL, "Cannot assign by reference to overloaded object");
- zval_ptr_dtor(&variable);
- variable_ptr = &EG(uninitialized_zval);
- }
- if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
- ZVAL_COPY(EX_VAR(opline->result.var), variable_ptr);
- }
- }
- static zend_never_inline void zend_assign_to_property_reference_this_const(zval *container, zval *prop_ptr, zval *value_ptr OPLINE_DC EXECUTE_DATA_DC)
- {
- zend_assign_to_property_reference(container, IS_UNUSED, prop_ptr, IS_CONST, value_ptr
- OPLINE_CC EXECUTE_DATA_CC);
- }
- static zend_never_inline void zend_assign_to_property_reference_var_const(zval *container, zval *prop_ptr, zval *value_ptr OPLINE_DC EXECUTE_DATA_DC)
- {
- zend_assign_to_property_reference(container, IS_VAR, prop_ptr, IS_CONST, value_ptr
- OPLINE_CC EXECUTE_DATA_CC);
- }
- static zend_never_inline void zend_assign_to_property_reference_this_var(zval *container, zval *prop_ptr, zval *value_ptr OPLINE_DC EXECUTE_DATA_DC)
- {
- zend_assign_to_property_reference(container, IS_UNUSED, prop_ptr, IS_VAR, value_ptr
- OPLINE_CC EXECUTE_DATA_CC);
- }
- static zend_never_inline void zend_assign_to_property_reference_var_var(zval *container, zval *prop_ptr, zval *value_ptr OPLINE_DC EXECUTE_DATA_DC)
- {
- zend_assign_to_property_reference(container, IS_VAR, prop_ptr, IS_VAR, value_ptr
- OPLINE_CC EXECUTE_DATA_CC);
- }
- static zend_never_inline int zend_fetch_static_property_address_ex(zval **retval, zend_property_info **prop_info, uint32_t cache_slot, int fetch_type OPLINE_DC EXECUTE_DATA_DC) {
- zend_string *name;
- zend_class_entry *ce;
- zend_property_info *property_info;
- zend_uchar op1_type = opline->op1_type, op2_type = opline->op2_type;
- if (EXPECTED(op2_type == IS_CONST)) {
- zval *class_name = RT_CONSTANT(opline, opline->op2);
- ZEND_ASSERT(op1_type != IS_CONST || CACHED_PTR(cache_slot) == NULL);
- if (EXPECTED((ce = CACHED_PTR(cache_slot)) == NULL)) {
- ce = zend_fetch_class_by_name(Z_STR_P(class_name), Z_STR_P(class_name + 1), ZEND_FETCH_CLASS_DEFAULT | ZEND_FETCH_CLASS_EXCEPTION);
- if (UNEXPECTED(ce == NULL)) {
- FREE_UNFETCHED_OP(op1_type, opline->op1.var);
- return FAILURE;
- }
- if (UNEXPECTED(op1_type != IS_CONST)) {
- CACHE_PTR(cache_slot, ce);
- }
- }
- } else {
- if (EXPECTED(op2_type == IS_UNUSED)) {
- ce = zend_fetch_class(NULL, opline->op2.num);
- if (UNEXPECTED(ce == NULL)) {
- FREE_UNFETCHED_OP(op1_type, opline->op1.var);
- return FAILURE;
- }
- } else {
- ce = Z_CE_P(EX_VAR(opline->op2.var));
- }
- if (EXPECTED(op1_type == IS_CONST) && EXPECTED(CACHED_PTR(cache_slot) == ce)) {
- *retval = CACHED_PTR(cache_slot + sizeof(void *));
- *prop_info = CACHED_PTR(cache_slot + sizeof(void *) * 2);
- return SUCCESS;
- }
- }
- if (EXPECTED(op1_type == IS_CONST)) {
- name = Z_STR_P(RT_CONSTANT(opline, opline->op1));
- *retval = zend_std_get_static_property_with_info(ce, name, fetch_type, &property_info);
- } else {
- zend_string *tmp_name;
- zval *varname = get_zval_ptr_undef(opline->op1_type, opline->op1, BP_VAR_R);
- if (EXPECTED(Z_TYPE_P(varname) == IS_STRING)) {
- name = Z_STR_P(varname);
- tmp_name = NULL;
- } else {
- if (op1_type == IS_CV && UNEXPECTED(Z_TYPE_P(varname) == IS_UNDEF)) {
- zval_undefined_cv(opline->op1.var EXECUTE_DATA_CC);
- }
- name = zval_get_tmp_string(varname, &tmp_name);
- }
- *retval = zend_std_get_static_property_with_info(ce, name, fetch_type, &property_info);
- if (UNEXPECTED(op1_type != IS_CONST)) {
- zend_tmp_string_release(tmp_name);
- FREE_OP(op1_type, opline->op1.var);
- }
- }
- if (UNEXPECTED(*retval == NULL)) {
- return FAILURE;
- }
- *prop_info = property_info;
- if (EXPECTED(op1_type == IS_CONST)) {
- CACHE_POLYMORPHIC_PTR(cache_slot, ce, *retval);
- CACHE_PTR(cache_slot + sizeof(void *) * 2, property_info);
- }
- return SUCCESS;
- }
- static zend_always_inline int zend_fetch_static_property_address(zval **retval, zend_property_info **prop_info, uint32_t cache_slot, int fetch_type, int flags OPLINE_DC EXECUTE_DATA_DC) {
- int success;
- zend_property_info *property_info;
- if (opline->op1_type == IS_CONST && (opline->op2_type == IS_CONST || (opline->op2_type == IS_UNUSED && (opline->op2.num == ZEND_FETCH_CLASS_SELF || opline->op2.num == ZEND_FETCH_CLASS_PARENT))) && EXPECTED(CACHED_PTR(cache_slot) != NULL)) {
- *retval = CACHED_PTR(cache_slot + sizeof(void *));
- property_info = CACHED_PTR(cache_slot + sizeof(void *) * 2);
- if ((fetch_type == BP_VAR_R || fetch_type == BP_VAR_RW)
- && UNEXPECTED(Z_TYPE_P(*retval) == IS_UNDEF)
- && UNEXPECTED(ZEND_TYPE_IS_SET(property_info->type))) {
- zend_throw_error(NULL, "Typed static property %s::$%s must not be accessed before initialization",
- ZSTR_VAL(property_info->ce->name),
- zend_get_unmangled_property_name(property_info->name));
- return FAILURE;
- }
- } else {
- success = zend_fetch_static_property_address_ex(retval, &property_info, cache_slot, fetch_type OPLINE_CC EXECUTE_DATA_CC);
- if (UNEXPECTED(success != SUCCESS)) {
- return FAILURE;
- }
- }
- if (flags && ZEND_TYPE_IS_SET(property_info->type)) {
- zend_handle_fetch_obj_flags(NULL, *retval, NULL, property_info, flags);
- }
- if (prop_info) {
- *prop_info = property_info;
- }
- return SUCCESS;
- }
- ZEND_API ZEND_COLD void zend_throw_ref_type_error_type(zend_property_info *prop1, zend_property_info *prop2, zval *zv) {
- zend_string *type1_str = zend_type_to_string(prop1->type);
- zend_string *type2_str = zend_type_to_string(prop2->type);
- zend_type_error("Reference with value of type %s held by property %s::$%s of type %s is not compatible with property %s::$%s of type %s",
- Z_TYPE_P(zv) == IS_OBJECT ? ZSTR_VAL(Z_OBJCE_P(zv)->name) : zend_get_type_by_const(Z_TYPE_P(zv)),
- ZSTR_VAL(prop1->ce->name),
- zend_get_unmangled_property_name(prop1->name),
- ZSTR_VAL(type1_str),
- ZSTR_VAL(prop2->ce->name),
- zend_get_unmangled_property_name(prop2->name),
- ZSTR_VAL(type2_str)
- );
- zend_string_release(type1_str);
- zend_string_release(type2_str);
- }
- ZEND_API ZEND_COLD void zend_throw_ref_type_error_zval(zend_property_info *prop, zval *zv) {
- zend_string *type_str = zend_type_to_string(prop->type);
- zend_type_error("Cannot assign %s to reference held by property %s::$%s of type %s",
- Z_TYPE_P(zv) == IS_OBJECT ? ZSTR_VAL(Z_OBJCE_P(zv)->name) : zend_get_type_by_const(Z_TYPE_P(zv)),
- ZSTR_VAL(prop->ce->name),
- zend_get_unmangled_property_name(prop->name),
- ZSTR_VAL(type_str)
- );
- zend_string_release(type_str);
- }
- ZEND_API ZEND_COLD void zend_throw_conflicting_coercion_error(zend_property_info *prop1, zend_property_info *prop2, zval *zv) {
- zend_string *type1_str = zend_type_to_string(prop1->type);
- zend_string *type2_str = zend_type_to_string(prop2->type);
- zend_type_error("Cannot assign %s to reference held by property %s::$%s of type %s and property %s::$%s of type %s, as this would result in an inconsistent type conversion",
- Z_TYPE_P(zv) == IS_OBJECT ? ZSTR_VAL(Z_OBJCE_P(zv)->name) : zend_get_type_by_const(Z_TYPE_P(zv)),
- ZSTR_VAL(prop1->ce->name),
- zend_get_unmangled_property_name(prop1->name),
- ZSTR_VAL(type1_str),
- ZSTR_VAL(prop2->ce->name),
- zend_get_unmangled_property_name(prop2->name),
- ZSTR_VAL(type2_str)
- );
- zend_string_release(type1_str);
- zend_string_release(type2_str);
- }
- /* 1: valid, 0: invalid, -1: may be valid after type coercion */
- static zend_always_inline int i_zend_verify_type_assignable_zval(
- zend_property_info *info, zval *zv, zend_bool strict) {
- zend_type type = info->type;
- uint32_t type_mask;
- zend_uchar zv_type = Z_TYPE_P(zv);
- if (EXPECTED(ZEND_TYPE_CONTAINS_CODE(type, zv_type))) {
- return 1;
- }
- if (ZEND_TYPE_HAS_CLASS(type) && zv_type == IS_OBJECT
- && zend_check_and_resolve_property_class_type(info, Z_OBJCE_P(zv))) {
- return 1;
- }
- type_mask = ZEND_TYPE_FULL_MASK(type);
- ZEND_ASSERT(!(type_mask & (MAY_BE_CALLABLE|MAY_BE_STATIC)));
- if (type_mask & MAY_BE_ITERABLE) {
- return zend_is_iterable(zv);
- }
- /* SSTH Exception: IS_LONG may be accepted as IS_DOUBLE (converted) */
- if (strict) {
- if ((type_mask & MAY_BE_DOUBLE) && zv_type == IS_LONG) {
- return -1;
- }
- return 0;
- }
- /* NULL may be accepted only by nullable hints (this is already checked) */
- if (zv_type == IS_NULL) {
- return 0;
- }
- /* Does not contain any type to which a coercion is possible */
- if (!(type_mask & (MAY_BE_LONG|MAY_BE_DOUBLE|MAY_BE_STRING))
- && (type_mask & MAY_BE_BOOL) != MAY_BE_BOOL) {
- return 0;
- }
- /* Coercion may be necessary, check separately */
- return -1;
- }
- ZEND_API zend_bool ZEND_FASTCALL zend_verify_ref_assignable_zval(zend_reference *ref, zval *zv, zend_bool strict)
- {
- zend_property_info *prop;
- /* The value must satisfy each property type, and coerce to the same value for each property
- * type. Remember the first coerced type and value we've seen for this purpose. */
- zend_property_info *first_prop = NULL;
- zval coerced_value;
- ZVAL_UNDEF(&coerced_value);
- ZEND_ASSERT(Z_TYPE_P(zv) != IS_REFERENCE);
- ZEND_REF_FOREACH_TYPE_SOURCES(ref, prop) {
- int result = i_zend_verify_type_assignable_zval(prop, zv, strict);
- if (result == 0) {
- type_error:
- zend_throw_ref_type_error_zval(prop, zv);
- zval_ptr_dtor(&coerced_value);
- return 0;
- }
- if (result < 0) {
- if (!first_prop) {
- first_prop = prop;
- ZVAL_COPY(&coerced_value, zv);
- if (!zend_verify_weak_scalar_type_hint(
- ZEND_TYPE_FULL_MASK(prop->type), &coerced_value)) {
- goto type_error;
- }
- } else if (Z_ISUNDEF(coerced_value)) {
- /* A previous property did not require coercion, but this one does,
- * so they are incompatible. */
- goto conflicting_coercion_error;
- } else {
- zval tmp;
- ZVAL_COPY(&tmp, zv);
- if (!zend_verify_weak_scalar_type_hint(ZEND_TYPE_FULL_MASK(prop->type), &tmp)) {
- zval_ptr_dtor(&tmp);
- goto type_error;
- }
- if (!zend_is_identical(&coerced_value, &tmp)) {
- zval_ptr_dtor(&tmp);
- goto conflicting_coercion_error;
- }
- }
- } else {
- if (!first_prop) {
- first_prop = prop;
- } else if (!Z_ISUNDEF(coerced_value)) {
- /* A previous property required coercion, but this one doesn't,
- * so they are incompatible. */
- conflicting_coercion_error:
- zend_throw_conflicting_coercion_error(first_prop, prop, zv);
- zval_ptr_dtor(&coerced_value);
- return 0;
- }
- }
- } ZEND_REF_FOREACH_TYPE_SOURCES_END();
- if (!Z_ISUNDEF(coerced_value)) {
- zval_ptr_dtor(zv);
- ZVAL_COPY_VALUE(zv, &coerced_value);
- }
- return 1;
- }
- ZEND_API zval* zend_assign_to_typed_ref(zval *variable_ptr, zval *value, zend_uchar value_type, zend_bool strict, zend_refcounted *ref)
- {
- zend_bool need_copy = ZEND_CONST_COND(value_type & (IS_CONST|IS_CV), 1) ||
- ((value_type & IS_VAR) && UNEXPECTED(ref) && GC_REFCOUNT(ref) > 1);
- zend_bool ret;
- zval tmp;
- if (need_copy) {
- ZVAL_COPY(&tmp, value);
- value = &tmp;
- }
- ret = zend_verify_ref_assignable_zval(Z_REF_P(variable_ptr), value, strict);
- if (need_copy) {
- Z_TRY_DELREF_P(value);
- }
- if (!ret) {
- if (value_type & (IS_VAR|IS_TMP_VAR)) {
- zval_ptr_dtor(value);
- }
- return Z_REFVAL_P(variable_ptr);
- }
- variable_ptr = Z_REFVAL_P(variable_ptr);
- if (EXPECTED(Z_REFCOUNTED_P(variable_ptr))) {
- zend_refcounted *garbage = Z_COUNTED_P(variable_ptr);
- zend_copy_to_variable(variable_ptr, value, value_type, ref);
- if (GC_DELREF(garbage) == 0) {
- rc_dtor_func(garbage);
- } else { /* we need to split */
- /* optimized version of GC_ZVAL_CHECK_POSSIBLE_ROOT(variable_ptr) */
- if (UNEXPECTED(GC_MAY_LEAK(garbage))) {
- gc_possible_root(garbage);
- }
- }
- return variable_ptr;
- }
- zend_copy_to_variable(variable_ptr, value, value_type, ref);
- return variable_ptr;
- }
- ZEND_API zend_bool ZEND_FASTCALL zend_verify_prop_assignable_by_ref(zend_property_info *prop_info, zval *orig_val, zend_bool strict) {
- zval *val = orig_val;
- if (Z_ISREF_P(val) && ZEND_REF_HAS_TYPE_SOURCES(Z_REF_P(val))) {
- int result;
- val = Z_REFVAL_P(val);
- result = i_zend_verify_type_assignable_zval(prop_info, val, strict);
- if (result > 0) {
- return 1;
- }
- if (result < 0) {
- /* This is definitely an error, but we still need to determined why: Either because
- * the value is simply illegal for the type, or because or a conflicting coercion. */
- zval tmp;
- ZVAL_COPY(&tmp, val);
- if (zend_verify_weak_scalar_type_hint(ZEND_TYPE_FULL_MASK(prop_info->type), &tmp)) {
- zend_property_info *ref_prop = ZEND_REF_FIRST_SOURCE(Z_REF_P(orig_val));
- zend_throw_ref_type_error_type(ref_prop, prop_info, val);
- zval_ptr_dtor(&tmp);
- return 0;
- }
- zval_ptr_dtor(&tmp);
- }
- } else {
- ZVAL_DEREF(val);
- if (i_zend_check_property_type(prop_info, val, strict)) {
- return 1;
- }
- }
- zend_verify_property_type_error(prop_info, val);
- return 0;
- }
- ZEND_API void ZEND_FASTCALL zend_ref_add_type_source(zend_property_info_source_list *source_list, zend_property_info *prop)
- {
- zend_property_info_list *list;
- if (source_list->ptr == NULL) {
- source_list->ptr = prop;
- return;
- }
- list = ZEND_PROPERTY_INFO_SOURCE_TO_LIST(source_list->list);
- if (!ZEND_PROPERTY_INFO_SOURCE_IS_LIST(source_list->list)) {
- list = emalloc(sizeof(zend_property_info_list) + (4 - 1) * sizeof(zend_property_info *));
- list->ptr[0] = source_list->ptr;
- list->num_allocated = 4;
- list->num = 1;
- } else if (list->num_allocated == list->num) {
- list->num_allocated = list->num * 2;
- list = erealloc(list, sizeof(zend_property_info_list) + (list->num_allocated - 1) * sizeof(zend_property_info *));
- }
- list->ptr[list->num++] = prop;
- source_list->list = ZEND_PROPERTY_INFO_SOURCE_FROM_LIST(list);
- }
- ZEND_API void ZEND_FASTCALL zend_ref_del_type_source(zend_property_info_source_list *source_list, zend_property_info *prop)
- {
- zend_property_info_list *list = ZEND_PROPERTY_INFO_SOURCE_TO_LIST(source_list->list);
- zend_property_info **ptr, **end;
- if (!ZEND_PROPERTY_INFO_SOURCE_IS_LIST(source_list->list)) {
- ZEND_ASSERT(source_list->ptr == prop);
- source_list->ptr = NULL;
- return;
- }
- if (list->num == 1) {
- ZEND_ASSERT(*list->ptr == prop);
- efree(list);
- source_list->ptr = NULL;
- return;
- }
- /* Checking against end here to get a more graceful failure mode if we missed adding a type
- * source at some point. */
- ptr = list->ptr;
- end = ptr + list->num;
- while (ptr < end && *ptr != prop) {
- ptr++;
- }
- ZEND_ASSERT(*ptr == prop);
- /* Copy the last list element into the deleted slot. */
- *ptr = list->ptr[--list->num];
- if (list->num >= 4 && list->num * 4 == list->num_allocated) {
- list->num_allocated = list->num * 2;
- source_list->list = ZEND_PROPERTY_INFO_SOURCE_FROM_LIST(erealloc(list, sizeof(zend_property_info_list) + (list->num_allocated - 1) * sizeof(zend_property_info *)));
- }
- }
- static zend_never_inline void zend_fetch_this_var(int type OPLINE_DC EXECUTE_DATA_DC)
- {
- zval *result = EX_VAR(opline->result.var);
- switch (type) {
- case BP_VAR_R:
- if (EXPECTED(Z_TYPE(EX(This)) == IS_OBJECT)) {
- ZVAL_OBJ(result, Z_OBJ(EX(This)));
- Z_ADDREF_P(result);
- } else {
- ZVAL_NULL(result);
- zend_error(E_WARNING, "Undefined variable $this");
- }
- break;
- case BP_VAR_IS:
- if (EXPECTED(Z_TYPE(EX(This)) == IS_OBJECT)) {
- ZVAL_OBJ(result, Z_OBJ(EX(This)));
- Z_ADDREF_P(result);
- } else {
- ZVAL_NULL(result);
- }
- break;
- case BP_VAR_RW:
- case BP_VAR_W:
- ZVAL_UNDEF(result);
- zend_throw_error(NULL, "Cannot re-assign $this");
- break;
- case BP_VAR_UNSET:
- ZVAL_UNDEF(result);
- zend_throw_error(NULL, "Cannot unset $this");
- break;
- EMPTY_SWITCH_DEFAULT_CASE()
- }
- }
- static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_wrong_clone_call(zend_function *clone, zend_class_entry *scope)
- {
- zend_throw_error(NULL, "Call to %s %s::__clone() from context '%s'", zend_visibility_string(clone->common.fn_flags), ZSTR_VAL(clone->common.scope->name), scope ? ZSTR_VAL(scope->name) : "");
- }
- #if ZEND_INTENSIVE_DEBUGGING
- #define CHECK_SYMBOL_TABLES() \
- zend_hash_apply(&EG(symbol_table), zend_check_symbol); \
- if (&EG(symbol_table)!=EX(symbol_table)) { \
- zend_hash_apply(EX(symbol_table), zend_check_symbol); \
- }
- static int zend_check_symbol(zval *pz)
- {
- if (Z_TYPE_P(pz) == IS_INDIRECT) {
- pz = Z_INDIRECT_P(pz);
- }
- if (Z_TYPE_P(pz) > 10) {
- fprintf(stderr, "Warning! %x has invalid type!\n", *pz);
- /* See http://support.microsoft.com/kb/190351 */
- #ifdef ZEND_WIN32
- fflush(stderr);
- #endif
- } else if (Z_TYPE_P(pz) == IS_ARRAY) {
- zend_hash_apply(Z_ARRVAL_P(pz), zend_check_symbol);
- } else if (Z_TYPE_P(pz) == IS_OBJECT) {
- /* OBJ-TBI - doesn't support new object model! */
- zend_hash_apply(Z_OBJPROP_P(pz), zend_check_symbol);
- }
- return 0;
- }
- #else
- #define CHECK_SYMBOL_TABLES()
- #endif
- ZEND_API void execute_internal(zend_execute_data *execute_data, zval *return_value)
- {
- execute_data->func->internal_function.handler(execute_data, return_value);
- }
- ZEND_API void zend_clean_and_cache_symbol_table(zend_array *symbol_table) /* {{{ */
- {
- if (EG(symtable_cache_ptr) >= EG(symtable_cache_limit)) {
- zend_array_destroy(symbol_table);
- } else {
- /* clean before putting into the cache, since clean
- could call dtors, which could use cached hash */
- zend_symtable_clean(symbol_table);
- *(EG(symtable_cache_ptr)++) = symbol_table;
- }
- }
- /* }}} */
- static zend_always_inline void i_free_compiled_variables(zend_execute_data *execute_data) /* {{{ */
- {
- zval *cv = EX_VAR_NUM(0);
- int count = EX(func)->op_array.last_var;
- while (EXPECTED(count != 0)) {
- i_zval_ptr_dtor(cv);
- cv++;
- count--;
- }
- }
- /* }}} */
- ZEND_API void zend_free_compiled_variables(zend_execute_data *execute_data) /* {{{ */
- {
- i_free_compiled_variables(execute_data);
- }
- /* }}} */
- #define ZEND_VM_INTERRUPT_CHECK() do { \
- if (UNEXPECTED(EG(vm_interrupt))) { \
- ZEND_VM_INTERRUPT(); \
- } \
- } while (0)
- #define ZEND_VM_LOOP_INTERRUPT_CHECK() do { \
- if (UNEXPECTED(EG(vm_interrupt))) { \
- ZEND_VM_LOOP_INTERRUPT(); \
- } \
- } while (0)
- /*
- * Stack Frame Layout (the whole stack frame is allocated at once)
- * ==================
- *
- * +========================================+
- * EG(current_execute_data) -> | zend_execute_data |
- * +----------------------------------------+
- * EX_VAR_NUM(0) --------> | VAR[0] = ARG[1] |
- * | ... |
- * | VAR[op_array->num_args-1] = ARG[N] |
- * | ... |
- * | VAR[op_array->last_var-1] |
- * | VAR[op_array->last_var] = TMP[0] |
- * | ... |
- * | VAR[op_array->last_var+op_array->T-1] |
- * | ARG[N+1] (extra_args) |
- * | ... |
- * +----------------------------------------+
- */
- /* zend_copy_extra_args is used when the actually passed number of arguments
- * (EX_NUM_ARGS) is greater than what the function defined (op_array->num_args).
- *
- * The extra arguments will be copied into the call frame after all the compiled variables.
- *
- * If there are extra arguments copied, a flag "ZEND_CALL_FREE_EXTRA_ARGS" will be set
- * on the zend_execute_data, and when the executor leaves the function, the
- * args will be freed in zend_leave_helper.
- */
- static zend_never_inline void zend_copy_extra_args(EXECUTE_DATA_D)
- {
- zend_op_array *op_array = &EX(func)->op_array;
- uint32_t first_extra_arg = op_array->num_args;
- uint32_t num_args = EX_NUM_ARGS();
- zval *src;
- size_t delta;
- uint32_t count;
- uint32_t type_flags = 0;
- if (EXPECTED((op_array->fn_flags & ZEND_ACC_HAS_TYPE_HINTS) == 0)) {
- /* Skip useless ZEND_RECV and ZEND_RECV_INIT opcodes */
- #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- opline += first_extra_arg;
- #else
- EX(opline) += first_extra_arg;
- #endif
- }
- /* move extra args into separate array after all CV and TMP vars */
- src = EX_VAR_NUM(num_args - 1);
- delta = op_array->last_var + op_array->T - first_extra_arg;
- count = num_args - first_extra_arg;
- if (EXPECTED(delta != 0)) {
- delta *= sizeof(zval);
- do {
- type_flags |= Z_TYPE_INFO_P(src);
- ZVAL_COPY_VALUE((zval*)(((char*)src) + delta), src);
- ZVAL_UNDEF(src);
- src--;
- } while (--count);
- if (Z_TYPE_INFO_REFCOUNTED(type_flags)) {
- ZEND_ADD_CALL_FLAG(execute_data, ZEND_CALL_FREE_EXTRA_ARGS);
- }
- } else {
- do {
- if (Z_REFCOUNTED_P(src)) {
- ZEND_ADD_CALL_FLAG(execute_data, ZEND_CALL_FREE_EXTRA_ARGS);
- break;
- }
- src--;
- } while (--count);
- }
- }
- static zend_always_inline void zend_init_cvs(uint32_t first, uint32_t last EXECUTE_DATA_DC)
- {
- if (EXPECTED(first < last)) {
- uint32_t count = last - first;
- zval *var = EX_VAR_NUM(first);
- do {
- ZVAL_UNDEF(var);
- var++;
- } while (--count);
- }
- }
- static zend_always_inline void i_init_func_execute_data(zend_op_array *op_array, zval *return_value, zend_bool may_be_trampoline EXECUTE_DATA_DC) /* {{{ */
- {
- uint32_t first_extra_arg, num_args;
- ZEND_ASSERT(EX(func) == (zend_function*)op_array);
- #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- opline = op_array->opcodes;
- #else
- EX(opline) = op_array->opcodes;
- #endif
- EX(call) = NULL;
- EX(return_value) = return_value;
- /* Handle arguments */
- first_extra_arg = op_array->num_args;
- num_args = EX_NUM_ARGS();
- if (UNEXPECTED(num_args > first_extra_arg)) {
- if (!may_be_trampoline || EXPECTED(!(op_array->fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE))) {
- zend_copy_extra_args(EXECUTE_DATA_C);
- }
- } else if (EXPECTED((op_array->fn_flags & ZEND_ACC_HAS_TYPE_HINTS) == 0)) {
- /* Skip useless ZEND_RECV and ZEND_RECV_INIT opcodes */
- #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- opline += num_args;
- #else
- EX(opline) += num_args;
- #endif
- }
- /* Initialize CV variables (skip arguments) */
- zend_init_cvs(num_args, op_array->last_var EXECUTE_DATA_CC);
- EX(run_time_cache) = RUN_TIME_CACHE(op_array);
- EG(current_execute_data) = execute_data;
- }
- /* }}} */
- static zend_always_inline void init_func_run_time_cache_i(zend_op_array *op_array) /* {{{ */
- {
- void **run_time_cache;
- ZEND_ASSERT(RUN_TIME_CACHE(op_array) == NULL);
- run_time_cache = zend_arena_alloc(&CG(arena), op_array->cache_size);
- memset(run_time_cache, 0, op_array->cache_size);
- ZEND_MAP_PTR_SET(op_array->run_time_cache, run_time_cache);
- }
- /* }}} */
- static zend_never_inline void ZEND_FASTCALL init_func_run_time_cache(zend_op_array *op_array) /* {{{ */
- {
- init_func_run_time_cache_i(op_array);
- }
- /* }}} */
- ZEND_API zend_function * ZEND_FASTCALL zend_fetch_function(zend_string *name) /* {{{ */
- {
- zval *zv = zend_hash_find(EG(function_table), name);
- if (EXPECTED(zv != NULL)) {
- zend_function *fbc = Z_FUNC_P(zv);
- if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
- init_func_run_time_cache_i(&fbc->op_array);
- }
- return fbc;
- }
- return NULL;
- } /* }}} */
- ZEND_API zend_function * ZEND_FASTCALL zend_fetch_function_str(const char *name, size_t len) /* {{{ */
- {
- zval *zv = zend_hash_str_find(EG(function_table), name, len);
- if (EXPECTED(zv != NULL)) {
- zend_function *fbc = Z_FUNC_P(zv);
- if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
- init_func_run_time_cache_i(&fbc->op_array);
- }
- return fbc;
- }
- return NULL;
- } /* }}} */
- ZEND_API void ZEND_FASTCALL zend_init_func_run_time_cache(zend_op_array *op_array) /* {{{ */
- {
- if (!RUN_TIME_CACHE(op_array)) {
- init_func_run_time_cache_i(op_array);
- }
- } /* }}} */
- static zend_always_inline void i_init_code_execute_data(zend_execute_data *execute_data, zend_op_array *op_array, zval *return_value) /* {{{ */
- {
- ZEND_ASSERT(EX(func) == (zend_function*)op_array);
- EX(opline) = op_array->opcodes;
- EX(call) = NULL;
- EX(return_value) = return_value;
- zend_attach_symbol_table(execute_data);
- if (!ZEND_MAP_PTR(op_array->run_time_cache)) {
- void *ptr;
- ZEND_ASSERT(op_array->fn_flags & ZEND_ACC_HEAP_RT_CACHE);
- ptr = emalloc(op_array->cache_size + sizeof(void*));
- ZEND_MAP_PTR_INIT(op_array->run_time_cache, ptr);
- ptr = (char*)ptr + sizeof(void*);
- ZEND_MAP_PTR_SET(op_array->run_time_cache, ptr);
- memset(ptr, 0, op_array->cache_size);
- }
- EX(run_time_cache) = RUN_TIME_CACHE(op_array);
- EG(current_execute_data) = execute_data;
- }
- /* }}} */
- ZEND_API void zend_init_func_execute_data(zend_execute_data *ex, zend_op_array *op_array, zval *return_value) /* {{{ */
- {
- #if defined(ZEND_VM_FP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- zend_execute_data *orig_execute_data = execute_data;
- #endif
- #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- const zend_op *orig_opline = opline;
- #endif
- #if defined(ZEND_VM_FP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- execute_data = ex;
- #else
- zend_execute_data *execute_data = ex;
- #endif
- EX(prev_execute_data) = EG(current_execute_data);
- if (!RUN_TIME_CACHE(op_array)) {
- init_func_run_time_cache(op_array);
- }
- i_init_func_execute_data(op_array, return_value, 1 EXECUTE_DATA_CC);
- #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- EX(opline) = opline;
- opline = orig_opline;
- #endif
- #if defined(ZEND_VM_FP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- execute_data = orig_execute_data;
- #endif
- }
- /* }}} */
- ZEND_API void zend_init_code_execute_data(zend_execute_data *execute_data, zend_op_array *op_array, zval *return_value) /* {{{ */
- {
- EX(prev_execute_data) = EG(current_execute_data);
- i_init_code_execute_data(execute_data, op_array, return_value);
- }
- /* }}} */
- ZEND_API void zend_init_execute_data(zend_execute_data *execute_data, zend_op_array *op_array, zval *return_value) /* {{{ */
- {
- if (EX_CALL_INFO() & ZEND_CALL_HAS_SYMBOL_TABLE) {
- zend_init_code_execute_data(execute_data, op_array, return_value);
- } else {
- zend_init_func_execute_data(execute_data, op_array, return_value);
- }
- }
- /* }}} */
- static zend_execute_data *zend_vm_stack_copy_call_frame(zend_execute_data *call, uint32_t passed_args, uint32_t additional_args) /* {{{ */
- {
- zend_execute_data *new_call;
- int used_stack = (EG(vm_stack_top) - (zval*)call) + additional_args;
- /* copy call frame into new stack segment */
- new_call = zend_vm_stack_extend(used_stack * sizeof(zval));
- *new_call = *call;
- ZEND_ADD_CALL_FLAG(new_call, ZEND_CALL_ALLOCATED);
- if (passed_args) {
- zval *src = ZEND_CALL_ARG(call, 1);
- zval *dst = ZEND_CALL_ARG(new_call, 1);
- do {
- ZVAL_COPY_VALUE(dst, src);
- passed_args--;
- src++;
- dst++;
- } while (passed_args);
- }
- /* delete old call_frame from previous stack segment */
- EG(vm_stack)->prev->top = (zval*)call;
- /* delete previous stack segment if it became empty */
- if (UNEXPECTED(EG(vm_stack)->prev->top == ZEND_VM_STACK_ELEMENTS(EG(vm_stack)->prev))) {
- zend_vm_stack r = EG(vm_stack)->prev;
- EG(vm_stack)->prev = r->prev;
- efree(r);
- }
- return new_call;
- }
- /* }}} */
- static zend_always_inline void zend_vm_stack_extend_call_frame(zend_execute_data **call, uint32_t passed_args, uint32_t additional_args) /* {{{ */
- {
- if (EXPECTED((uint32_t)(EG(vm_stack_end) - EG(vm_stack_top)) > additional_args)) {
- EG(vm_stack_top) += additional_args;
- } else {
- *call = zend_vm_stack_copy_call_frame(*call, passed_args, additional_args);
- }
- }
- /* }}} */
- static zend_always_inline zend_generator *zend_get_running_generator(EXECUTE_DATA_D) /* {{{ */
- {
- /* The generator object is stored in EX(return_value) */
- zend_generator *generator = (zend_generator *) EX(return_value);
- /* However control may currently be delegated to another generator.
- * That's the one we're interested in. */
- return generator;
- }
- /* }}} */
- static void cleanup_unfinished_calls(zend_execute_data *execute_data, uint32_t op_num) /* {{{ */
- {
- if (UNEXPECTED(EX(call))) {
- zend_execute_data *call = EX(call);
- zend_op *opline = EX(func)->op_array.opcodes + op_num;
- int level;
- int do_exit;
- if (UNEXPECTED(opline->opcode == ZEND_INIT_FCALL ||
- opline->opcode == ZEND_INIT_FCALL_BY_NAME ||
- opline->opcode == ZEND_INIT_NS_FCALL_BY_NAME ||
- opline->opcode == ZEND_INIT_DYNAMIC_CALL ||
- opline->opcode == ZEND_INIT_USER_CALL ||
- opline->opcode == ZEND_INIT_METHOD_CALL ||
- opline->opcode == ZEND_INIT_STATIC_METHOD_CALL ||
- opline->opcode == ZEND_NEW)) {
- ZEND_ASSERT(op_num);
- opline--;
- }
- do {
- /* If the exception was thrown during a function call there might be
- * arguments pushed to the stack that have to be dtor'ed. */
- /* find the number of actually passed arguments */
- level = 0;
- do_exit = 0;
- do {
- switch (opline->opcode) {
- case ZEND_DO_FCALL:
- case ZEND_DO_ICALL:
- case ZEND_DO_UCALL:
- case ZEND_DO_FCALL_BY_NAME:
- level++;
- break;
- case ZEND_INIT_FCALL:
- case ZEND_INIT_FCALL_BY_NAME:
- case ZEND_INIT_NS_FCALL_BY_NAME:
- case ZEND_INIT_DYNAMIC_CALL:
- case ZEND_INIT_USER_CALL:
- case ZEND_INIT_METHOD_CALL:
- case ZEND_INIT_STATIC_METHOD_CALL:
- case ZEND_NEW:
- if (level == 0) {
- ZEND_CALL_NUM_ARGS(call) = 0;
- do_exit = 1;
- }
- level--;
- break;
- case ZEND_SEND_VAL:
- case ZEND_SEND_VAL_EX:
- case ZEND_SEND_VAR:
- case ZEND_SEND_VAR_EX:
- case ZEND_SEND_FUNC_ARG:
- case ZEND_SEND_REF:
- case ZEND_SEND_VAR_NO_REF:
- case ZEND_SEND_VAR_NO_REF_EX:
- case ZEND_SEND_USER:
- if (level == 0) {
- ZEND_CALL_NUM_ARGS(call) = opline->op2.num;
- do_exit = 1;
- }
- break;
- case ZEND_SEND_ARRAY:
- case ZEND_SEND_UNPACK:
- if (level == 0) {
- do_exit = 1;
- }
- break;
- }
- if (!do_exit) {
- opline--;
- }
- } while (!do_exit);
- if (call->prev_execute_data) {
- /* skip current call region */
- level = 0;
- do_exit = 0;
- do {
- switch (opline->opcode) {
- case ZEND_DO_FCALL:
- case ZEND_DO_ICALL:
- case ZEND_DO_UCALL:
- case ZEND_DO_FCALL_BY_NAME:
- level++;
- break;
- case ZEND_INIT_FCALL:
- case ZEND_INIT_FCALL_BY_NAME:
- case ZEND_INIT_NS_FCALL_BY_NAME:
- case ZEND_INIT_DYNAMIC_CALL:
- case ZEND_INIT_USER_CALL:
- case ZEND_INIT_METHOD_CALL:
- case ZEND_INIT_STATIC_METHOD_CALL:
- case ZEND_NEW:
- if (level == 0) {
- do_exit = 1;
- }
- level--;
- break;
- }
- opline--;
- } while (!do_exit);
- }
- zend_vm_stack_free_args(EX(call));
- if (ZEND_CALL_INFO(call) & ZEND_CALL_RELEASE_THIS) {
- OBJ_RELEASE(Z_OBJ(call->This));
- }
- if (call->func->common.fn_flags & ZEND_ACC_CLOSURE) {
- zend_object_release(ZEND_CLOSURE_OBJECT(call->func));
- } else if (call->func->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) {
- zend_string_release_ex(call->func->common.function_name, 0);
- zend_free_trampoline(call->func);
- }
- EX(call) = call->prev_execute_data;
- zend_vm_stack_free_call_frame(call);
- call = EX(call);
- } while (call);
- }
- }
- /* }}} */
- static const zend_live_range *find_live_range(const zend_op_array *op_array, uint32_t op_num, uint32_t var_num) /* {{{ */
- {
- int i;
- for (i = 0; i < op_array->last_live_range; i++) {
- const zend_live_range *range = &op_array->live_range[i];
- if (op_num >= range->start && op_num < range->end
- && var_num == (range->var & ~ZEND_LIVE_MASK)) {
- return range;
- }
- }
- return NULL;
- }
- /* }}} */
- static void cleanup_live_vars(zend_execute_data *execute_data, uint32_t op_num, uint32_t catch_op_num) /* {{{ */
- {
- int i;
- for (i = 0; i < EX(func)->op_array.last_live_range; i++) {
- const zend_live_range *range = &EX(func)->op_array.live_range[i];
- if (range->start > op_num) {
- /* further blocks will not be relevant... */
- break;
- } else if (op_num < range->end) {
- if (!catch_op_num || catch_op_num >= range->end) {
- uint32_t kind = range->var & ZEND_LIVE_MASK;
- uint32_t var_num = range->var & ~ZEND_LIVE_MASK;
- zval *var = EX_VAR(var_num);
- if (kind == ZEND_LIVE_TMPVAR) {
- zval_ptr_dtor_nogc(var);
- } else if (kind == ZEND_LIVE_NEW) {
- zend_object *obj;
- ZEND_ASSERT(Z_TYPE_P(var) == IS_OBJECT);
- obj = Z_OBJ_P(var);
- zend_object_store_ctor_failed(obj);
- OBJ_RELEASE(obj);
- } else if (kind == ZEND_LIVE_LOOP) {
- if (Z_TYPE_P(var) != IS_ARRAY && Z_FE_ITER_P(var) != (uint32_t)-1) {
- zend_hash_iterator_del(Z_FE_ITER_P(var));
- }
- zval_ptr_dtor_nogc(var);
- } else if (kind == ZEND_LIVE_ROPE) {
- zend_string **rope = (zend_string **)var;
- zend_op *last = EX(func)->op_array.opcodes + op_num;
- while ((last->opcode != ZEND_ROPE_ADD && last->opcode != ZEND_ROPE_INIT)
- || last->result.var != var_num) {
- ZEND_ASSERT(last >= EX(func)->op_array.opcodes);
- last--;
- }
- if (last->opcode == ZEND_ROPE_INIT) {
- zend_string_release_ex(*rope, 0);
- } else {
- int j = last->extended_value;
- do {
- zend_string_release_ex(rope[j], 0);
- } while (j--);
- }
- } else if (kind == ZEND_LIVE_SILENCE) {
- /* restore previous error_reporting value */
- if (E_HAS_ONLY_FATAL_ERRORS(EG(error_reporting))
- && !E_HAS_ONLY_FATAL_ERRORS(Z_LVAL_P(var))) {
- EG(error_reporting) = Z_LVAL_P(var);
- }
- }
- }
- }
- }
- }
- /* }}} */
- ZEND_API void zend_cleanup_unfinished_execution(zend_execute_data *execute_data, uint32_t op_num, uint32_t catch_op_num) {
- cleanup_unfinished_calls(execute_data, op_num);
- cleanup_live_vars(execute_data, op_num, catch_op_num);
- }
- #if ZEND_VM_SPEC
- static void zend_swap_operands(zend_op *op) /* {{{ */
- {
- znode_op tmp;
- zend_uchar tmp_type;
- tmp = op->op1;
- tmp_type = op->op1_type;
- op->op1 = op->op2;
- op->op1_type = op->op2_type;
- op->op2 = tmp;
- op->op2_type = tmp_type;
- }
- /* }}} */
- #endif
- static zend_never_inline zend_execute_data *zend_init_dynamic_call_string(zend_string *function, uint32_t num_args) /* {{{ */
- {
- zend_function *fbc;
- zval *func;
- zend_class_entry *called_scope;
- zend_string *lcname;
- const char *colon;
- if ((colon = zend_memrchr(ZSTR_VAL(function), ':', ZSTR_LEN(function))) != NULL &&
- colon > ZSTR_VAL(function) &&
- *(colon-1) == ':'
- ) {
- zend_string *mname;
- size_t cname_length = colon - ZSTR_VAL(function) - 1;
- size_t mname_length = ZSTR_LEN(function) - cname_length - (sizeof("::") - 1);
- lcname = zend_string_init(ZSTR_VAL(function), cname_length, 0);
- called_scope = zend_fetch_class_by_name(lcname, NULL, ZEND_FETCH_CLASS_DEFAULT | ZEND_FETCH_CLASS_EXCEPTION);
- if (UNEXPECTED(called_scope == NULL)) {
- zend_string_release_ex(lcname, 0);
- return NULL;
- }
- mname = zend_string_init(ZSTR_VAL(function) + (cname_length + sizeof("::") - 1), mname_length, 0);
- if (called_scope->get_static_method) {
- fbc = called_scope->get_static_method(called_scope, mname);
- } else {
- fbc = zend_std_get_static_method(called_scope, mname, NULL);
- }
- if (UNEXPECTED(fbc == NULL)) {
- if (EXPECTED(!EG(exception))) {
- zend_undefined_method(called_scope, mname);
- }
- zend_string_release_ex(lcname, 0);
- zend_string_release_ex(mname, 0);
- return NULL;
- }
- zend_string_release_ex(lcname, 0);
- zend_string_release_ex(mname, 0);
- if (UNEXPECTED(!(fbc->common.fn_flags & ZEND_ACC_STATIC))) {
- zend_non_static_method_call(fbc);
- return NULL;
- }
- if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
- init_func_run_time_cache(&fbc->op_array);
- }
- } else {
- if (ZSTR_VAL(function)[0] == '\\') {
- lcname = zend_string_alloc(ZSTR_LEN(function) - 1, 0);
- zend_str_tolower_copy(ZSTR_VAL(lcname), ZSTR_VAL(function) + 1, ZSTR_LEN(function) - 1);
- } else {
- lcname = zend_string_tolower(function);
- }
- if (UNEXPECTED((func = zend_hash_find(EG(function_table), lcname)) == NULL)) {
- zend_throw_error(NULL, "Call to undefined function %s()", ZSTR_VAL(function));
- zend_string_release_ex(lcname, 0);
- return NULL;
- }
- zend_string_release_ex(lcname, 0);
- fbc = Z_FUNC_P(func);
- if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
- init_func_run_time_cache(&fbc->op_array);
- }
- called_scope = NULL;
- }
- return zend_vm_stack_push_call_frame(ZEND_CALL_NESTED_FUNCTION | ZEND_CALL_DYNAMIC,
- fbc, num_args, called_scope);
- }
- /* }}} */
- static zend_never_inline zend_execute_data *zend_init_dynamic_call_object(zend_object *function, uint32_t num_args) /* {{{ */
- {
- zend_function *fbc;
- void *object_or_called_scope;
- zend_class_entry *called_scope;
- zend_object *object;
- uint32_t call_info = ZEND_CALL_NESTED_FUNCTION | ZEND_CALL_DYNAMIC;
- if (EXPECTED(function->handlers->get_closure) &&
- EXPECTED(function->handlers->get_closure(function, &called_scope, &fbc, &object, 0) == SUCCESS)) {
- object_or_called_scope = called_scope;
- if (fbc->common.fn_flags & ZEND_ACC_CLOSURE) {
- /* Delay closure destruction until its invocation */
- GC_ADDREF(ZEND_CLOSURE_OBJECT(fbc));
- call_info |= ZEND_CALL_CLOSURE;
- if (fbc->common.fn_flags & ZEND_ACC_FAKE_CLOSURE) {
- call_info |= ZEND_CALL_FAKE_CLOSURE;
- }
- if (object) {
- call_info |= ZEND_CALL_HAS_THIS;
- object_or_called_scope = object;
- }
- } else if (object) {
- call_info |= ZEND_CALL_RELEASE_THIS | ZEND_CALL_HAS_THIS;
- GC_ADDREF(object); /* For $this pointer */
- object_or_called_scope = object;
- }
- } else {
- zend_throw_error(NULL, "Object of type %s is not callable", ZSTR_VAL(function->ce->name));
- return NULL;
- }
- if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
- init_func_run_time_cache(&fbc->op_array);
- }
- return zend_vm_stack_push_call_frame(call_info,
- fbc, num_args, object_or_called_scope);
- }
- /* }}} */
- static zend_never_inline zend_execute_data *zend_init_dynamic_call_array(zend_array *function, uint32_t num_args) /* {{{ */
- {
- zend_function *fbc;
- void *object_or_called_scope;
- uint32_t call_info = ZEND_CALL_NESTED_FUNCTION | ZEND_CALL_DYNAMIC;
- if (zend_hash_num_elements(function) == 2) {
- zval *obj;
- zval *method;
- obj = zend_hash_index_find(function, 0);
- method = zend_hash_index_find(function, 1);
- if (UNEXPECTED(!obj) || UNEXPECTED(!method)) {
- zend_throw_error(NULL, "Array callback has to contain indices 0 and 1");
- return NULL;
- }
- ZVAL_DEREF(obj);
- if (UNEXPECTED(Z_TYPE_P(obj) != IS_STRING) && UNEXPECTED(Z_TYPE_P(obj) != IS_OBJECT)) {
- zend_throw_error(NULL, "First array member is not a valid class name or object");
- return NULL;
- }
- ZVAL_DEREF(method);
- if (UNEXPECTED(Z_TYPE_P(method) != IS_STRING)) {
- zend_throw_error(NULL, "Second array member is not a valid method");
- return NULL;
- }
- if (Z_TYPE_P(obj) == IS_STRING) {
- zend_class_entry *called_scope = zend_fetch_class_by_name(Z_STR_P(obj), NULL, ZEND_FETCH_CLASS_DEFAULT | ZEND_FETCH_CLASS_EXCEPTION);
- if (UNEXPECTED(called_scope == NULL)) {
- return NULL;
- }
- if (called_scope->get_static_method) {
- fbc = called_scope->get_static_method(called_scope, Z_STR_P(method));
- } else {
- fbc = zend_std_get_static_method(called_scope, Z_STR_P(method), NULL);
- }
- if (UNEXPECTED(fbc == NULL)) {
- if (EXPECTED(!EG(exception))) {
- zend_undefined_method(called_scope, Z_STR_P(method));
- }
- return NULL;
- }
- if (!(fbc->common.fn_flags & ZEND_ACC_STATIC)) {
- zend_non_static_method_call(fbc);
- return NULL;
- }
- object_or_called_scope = called_scope;
- } else {
- zend_object *object = Z_OBJ_P(obj);
- fbc = Z_OBJ_HT_P(obj)->get_method(&object, Z_STR_P(method), NULL);
- if (UNEXPECTED(fbc == NULL)) {
- if (EXPECTED(!EG(exception))) {
- zend_undefined_method(object->ce, Z_STR_P(method));
- }
- return NULL;
- }
- if ((fbc->common.fn_flags & ZEND_ACC_STATIC) != 0) {
- object_or_called_scope = object->ce;
- } else {
- call_info |= ZEND_CALL_RELEASE_THIS | ZEND_CALL_HAS_THIS;
- GC_ADDREF(object); /* For $this pointer */
- object_or_called_scope = object;
- }
- }
- } else {
- zend_throw_error(NULL, "Array callback must have exactly two elements");
- return NULL;
- }
- if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
- init_func_run_time_cache(&fbc->op_array);
- }
- return zend_vm_stack_push_call_frame(call_info,
- fbc, num_args, object_or_called_scope);
- }
- /* }}} */
- #define ZEND_FAKE_OP_ARRAY ((zend_op_array*)(zend_intptr_t)-1)
- static zend_never_inline zend_op_array* ZEND_FASTCALL zend_include_or_eval(zval *inc_filename, int type) /* {{{ */
- {
- zend_op_array *new_op_array = NULL;
- zval tmp_inc_filename;
- ZVAL_UNDEF(&tmp_inc_filename);
- if (Z_TYPE_P(inc_filename) != IS_STRING) {
- zend_string *tmp = zval_try_get_string_func(inc_filename);
- if (UNEXPECTED(!tmp)) {
- return NULL;
- }
- ZVAL_STR(&tmp_inc_filename, tmp);
- inc_filename = &tmp_inc_filename;
- }
- switch (type) {
- case ZEND_INCLUDE_ONCE:
- case ZEND_REQUIRE_ONCE: {
- zend_file_handle file_handle;
- zend_string *resolved_path;
- resolved_path = zend_resolve_path(Z_STRVAL_P(inc_filename), Z_STRLEN_P(inc_filename));
- if (EXPECTED(resolved_path)) {
- if (zend_hash_exists(&EG(included_files), resolved_path)) {
- goto already_compiled;
- }
- } else if (UNEXPECTED(EG(exception))) {
- break;
- } else if (UNEXPECTED(strlen(Z_STRVAL_P(inc_filename)) != Z_STRLEN_P(inc_filename))) {
- zend_message_dispatcher(
- (type == ZEND_INCLUDE_ONCE) ?
- ZMSG_FAILED_INCLUDE_FOPEN : ZMSG_FAILED_REQUIRE_FOPEN,
- Z_STRVAL_P(inc_filename));
- break;
- } else {
- resolved_path = zend_string_copy(Z_STR_P(inc_filename));
- }
- if (SUCCESS == zend_stream_open(ZSTR_VAL(resolved_path), &file_handle)) {
- if (!file_handle.opened_path) {
- file_handle.opened_path = zend_string_copy(resolved_path);
- }
- if (zend_hash_add_empty_element(&EG(included_files), file_handle.opened_path)) {
- zend_op_array *op_array = zend_compile_file(&file_handle, (type==ZEND_INCLUDE_ONCE?ZEND_INCLUDE:ZEND_REQUIRE));
- zend_destroy_file_handle(&file_handle);
- zend_string_release_ex(resolved_path, 0);
- if (Z_TYPE(tmp_inc_filename) != IS_UNDEF) {
- zval_ptr_dtor_str(&tmp_inc_filename);
- }
- return op_array;
- } else {
- zend_file_handle_dtor(&file_handle);
- already_compiled:
- new_op_array = ZEND_FAKE_OP_ARRAY;
- }
- } else {
- zend_message_dispatcher(
- (type == ZEND_INCLUDE_ONCE) ?
- ZMSG_FAILED_INCLUDE_FOPEN : ZMSG_FAILED_REQUIRE_FOPEN,
- Z_STRVAL_P(inc_filename));
- }
- zend_string_release_ex(resolved_path, 0);
- }
- break;
- case ZEND_INCLUDE:
- case ZEND_REQUIRE:
- if (UNEXPECTED(strlen(Z_STRVAL_P(inc_filename)) != Z_STRLEN_P(inc_filename))) {
- zend_message_dispatcher(
- (type == ZEND_INCLUDE) ?
- ZMSG_FAILED_INCLUDE_FOPEN : ZMSG_FAILED_REQUIRE_FOPEN,
- Z_STRVAL_P(inc_filename));
- break;
- }
- new_op_array = compile_filename(type, inc_filename);
- break;
- case ZEND_EVAL: {
- char *eval_desc = zend_make_compiled_string_description("eval()'d code");
- new_op_array = zend_compile_string(inc_filename, eval_desc);
- efree(eval_desc);
- }
- break;
- EMPTY_SWITCH_DEFAULT_CASE()
- }
- if (Z_TYPE(tmp_inc_filename) != IS_UNDEF) {
- zval_ptr_dtor_str(&tmp_inc_filename);
- }
- return new_op_array;
- }
- /* }}} */
- static zend_never_inline zend_bool ZEND_FASTCALL zend_fe_reset_iterator(zval *array_ptr, int by_ref OPLINE_DC EXECUTE_DATA_DC) /* {{{ */
- {
- zend_class_entry *ce = Z_OBJCE_P(array_ptr);
- zend_object_iterator *iter = ce->get_iterator(ce, array_ptr, by_ref);
- zend_bool is_empty;
- if (UNEXPECTED(!iter) || UNEXPECTED(EG(exception))) {
- if (iter) {
- OBJ_RELEASE(&iter->std);
- }
- if (!EG(exception)) {
- zend_throw_exception_ex(NULL, 0, "Object of type %s did not create an Iterator", ZSTR_VAL(ce->name));
- }
- ZVAL_UNDEF(EX_VAR(opline->result.var));
- return 1;
- }
- iter->index = 0;
- if (iter->funcs->rewind) {
- iter->funcs->rewind(iter);
- if (UNEXPECTED(EG(exception) != NULL)) {
- OBJ_RELEASE(&iter->std);
- ZVAL_UNDEF(EX_VAR(opline->result.var));
- return 1;
- }
- }
- is_empty = iter->funcs->valid(iter) != SUCCESS;
- if (UNEXPECTED(EG(exception) != NULL)) {
- OBJ_RELEASE(&iter->std);
- ZVAL_UNDEF(EX_VAR(opline->result.var));
- return 1;
- }
- iter->index = -1; /* will be set to 0 before using next handler */
- ZVAL_OBJ(EX_VAR(opline->result.var), &iter->std);
- Z_FE_ITER_P(EX_VAR(opline->result.var)) = (uint32_t)-1;
- return is_empty;
- }
- /* }}} */
- static zend_always_inline int _zend_quick_get_constant(
- const zval *key, uint32_t flags, int check_defined_only OPLINE_DC EXECUTE_DATA_DC) /* {{{ */
- {
- zval *zv;
- zend_constant *c = NULL;
- /* null/true/false are resolved during compilation, so don't check for them here. */
- zv = zend_hash_find_ex(EG(zend_constants), Z_STR_P(key), 1);
- if (zv) {
- c = (zend_constant*)Z_PTR_P(zv);
- } else if (flags & IS_CONSTANT_UNQUALIFIED_IN_NAMESPACE) {
- key++;
- zv = zend_hash_find_ex(EG(zend_constants), Z_STR_P(key), 1);
- if (zv) {
- c = (zend_constant*)Z_PTR_P(zv);
- }
- }
- if (!c) {
- if (!check_defined_only) {
- zend_throw_error(NULL, "Undefined constant '%s'", Z_STRVAL_P(RT_CONSTANT(opline, opline->op2)));
- ZVAL_UNDEF(EX_VAR(opline->result.var));
- }
- return FAILURE;
- }
- if (!check_defined_only) {
- ZVAL_COPY_OR_DUP(EX_VAR(opline->result.var), &c->value);
- if (ZEND_CONSTANT_FLAGS(c) & CONST_DEPRECATED) {
- zend_error(E_DEPRECATED, "Constant %s is deprecated", ZSTR_VAL(c->name));
- return SUCCESS;
- }
- }
- CACHE_PTR(opline->extended_value, c);
- return SUCCESS;
- }
- /* }}} */
- static zend_never_inline void ZEND_FASTCALL zend_quick_get_constant(
- const zval *key, uint32_t flags OPLINE_DC EXECUTE_DATA_DC) /* {{{ */
- {
- _zend_quick_get_constant(key, flags, 0 OPLINE_CC EXECUTE_DATA_CC);
- } /* }}} */
- static zend_never_inline int ZEND_FASTCALL zend_quick_check_constant(
- const zval *key OPLINE_DC EXECUTE_DATA_DC) /* {{{ */
- {
- return _zend_quick_get_constant(key, 0, 1 OPLINE_CC EXECUTE_DATA_CC);
- } /* }}} */
- #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
- /* Special versions of functions that sets EX(opline) before calling zend_vm_stack_extend() */
- static zend_always_inline zend_execute_data *_zend_vm_stack_push_call_frame_ex(uint32_t used_stack, uint32_t call_info, zend_function *func, uint32_t num_args, void *object_or_called_scope) /* {{{ */
- {
- zend_execute_data *call = (zend_execute_data*)EG(vm_stack_top);
- ZEND_ASSERT_VM_STACK_GLOBAL;
- if (UNEXPECTED(used_stack > (size_t)(((char*)EG(vm_stack_end)) - (char*)call))) {
- EX(opline) = opline; /* this is the only difference */
- call = (zend_execute_data*)zend_vm_stack_extend(used_stack);
- ZEND_ASSERT_VM_STACK_GLOBAL;
- zend_vm_init_call_frame(call, call_info | ZEND_CALL_ALLOCATED, func, num_args, object_or_called_scope);
- return call;
- } else {
- EG(vm_stack_top) = (zval*)((char*)call + used_stack);
- zend_vm_init_call_frame(call, call_info, func, num_args, object_or_called_scope);
- return call;
- }
- } /* }}} */
- static zend_always_inline zend_execute_data *_zend_vm_stack_push_call_frame(uint32_t call_info, zend_function *func, uint32_t num_args, void *object_or_called_scope) /* {{{ */
- {
- uint32_t used_stack = zend_vm_calc_used_stack(num_args, func);
- return _zend_vm_stack_push_call_frame_ex(used_stack, call_info,
- func, num_args, object_or_called_scope);
- } /* }}} */
- #else
- # define _zend_vm_stack_push_call_frame_ex zend_vm_stack_push_call_frame_ex
- # define _zend_vm_stack_push_call_frame zend_vm_stack_push_call_frame
- #endif
- #ifdef ZEND_VM_TRACE_HANDLERS
- # include "zend_vm_trace_handlers.h"
- #elif defined(ZEND_VM_TRACE_MAP)
- # include "zend_vm_trace_map.h"
- #endif
- #define ZEND_VM_NEXT_OPCODE_EX(check_exception, skip) \
- CHECK_SYMBOL_TABLES() \
- if (check_exception) { \
- OPLINE = EX(opline) + (skip); \
- } else { \
- OPLINE = opline + (skip); \
- } \
- ZEND_VM_CONTINUE()
- #define ZEND_VM_NEXT_OPCODE_CHECK_EXCEPTION() \
- ZEND_VM_NEXT_OPCODE_EX(1, 1)
- #define ZEND_VM_NEXT_OPCODE() \
- ZEND_VM_NEXT_OPCODE_EX(0, 1)
- #define ZEND_VM_SET_NEXT_OPCODE(new_op) \
- CHECK_SYMBOL_TABLES() \
- OPLINE = new_op
- #define ZEND_VM_SET_OPCODE(new_op) \
- CHECK_SYMBOL_TABLES() \
- OPLINE = new_op; \
- ZEND_VM_INTERRUPT_CHECK()
- #define ZEND_VM_SET_RELATIVE_OPCODE(opline, offset) \
- ZEND_VM_SET_OPCODE(ZEND_OFFSET_TO_OPLINE(opline, offset))
- #define ZEND_VM_JMP_EX(new_op, check_exception) do { \
- if (check_exception && UNEXPECTED(EG(exception))) { \
- HANDLE_EXCEPTION(); \
- } \
- ZEND_VM_SET_OPCODE(new_op); \
- ZEND_VM_CONTINUE(); \
- } while (0)
- #define ZEND_VM_JMP(new_op) \
- ZEND_VM_JMP_EX(new_op, 1)
- #define ZEND_VM_INC_OPCODE() \
- OPLINE++
- #define ZEND_VM_REPEATABLE_OPCODE \
- do {
- #define ZEND_VM_REPEAT_OPCODE(_opcode) \
- } while (UNEXPECTED((++opline)->opcode == _opcode)); \
- OPLINE = opline; \
- ZEND_VM_CONTINUE()
- #define ZEND_VM_SMART_BRANCH(_result, _check) do { \
- if ((_check) && UNEXPECTED(EG(exception))) { \
- OPLINE = EX(opline); \
- } else if (EXPECTED(opline->result_type == (IS_SMART_BRANCH_JMPZ|IS_TMP_VAR))) { \
- if (_result) { \
- ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
- } else { \
- ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
- } \
- } else if (EXPECTED(opline->result_type == (IS_SMART_BRANCH_JMPNZ|IS_TMP_VAR))) { \
- if (!(_result)) { \
- ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
- } else { \
- ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
- } \
- } else { \
- ZVAL_BOOL(EX_VAR(opline->result.var), _result); \
- ZEND_VM_SET_NEXT_OPCODE(opline + 1); \
- } \
- ZEND_VM_CONTINUE(); \
- } while (0)
- #define ZEND_VM_SMART_BRANCH_JMPZ(_result, _check) do { \
- if ((_check) && UNEXPECTED(EG(exception))) { \
- OPLINE = EX(opline); \
- } else if (_result) { \
- ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
- } else { \
- ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
- } \
- ZEND_VM_CONTINUE(); \
- } while (0)
- #define ZEND_VM_SMART_BRANCH_JMPNZ(_result, _check) do { \
- if ((_check) && UNEXPECTED(EG(exception))) { \
- OPLINE = EX(opline); \
- } else if (!(_result)) { \
- ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
- } else { \
- ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
- } \
- ZEND_VM_CONTINUE(); \
- } while (0)
- #define ZEND_VM_SMART_BRANCH_NONE(_result, _check) do { \
- ZVAL_BOOL(EX_VAR(opline->result.var), _result); \
- ZEND_VM_NEXT_OPCODE_EX(_check, 1); \
- ZEND_VM_CONTINUE(); \
- } while (0)
- #define ZEND_VM_SMART_BRANCH_TRUE() do { \
- if (EXPECTED(opline->result_type == (IS_SMART_BRANCH_JMPNZ|IS_TMP_VAR))) { \
- ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
- } else if (EXPECTED(opline->result_type == (IS_SMART_BRANCH_JMPZ|IS_TMP_VAR))) { \
- ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
- } else { \
- ZVAL_TRUE(EX_VAR(opline->result.var)); \
- ZEND_VM_SET_NEXT_OPCODE(opline + 1); \
- } \
- ZEND_VM_CONTINUE(); \
- } while (0)
- #define ZEND_VM_SMART_BRANCH_TRUE_JMPZ() do { \
- ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
- ZEND_VM_CONTINUE(); \
- } while (0)
- #define ZEND_VM_SMART_BRANCH_TRUE_JMPNZ() do { \
- ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
- ZEND_VM_CONTINUE(); \
- } while (0)
- #define ZEND_VM_SMART_BRANCH_TRUE_NONE() do { \
- ZVAL_TRUE(EX_VAR(opline->result.var)); \
- ZEND_VM_NEXT_OPCODE(); \
- } while (0)
- #define ZEND_VM_SMART_BRANCH_FALSE() do { \
- if (EXPECTED(opline->result_type == (IS_SMART_BRANCH_JMPNZ|IS_TMP_VAR))) { \
- ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
- } else if (EXPECTED(opline->result_type == (IS_SMART_BRANCH_JMPZ|IS_TMP_VAR))) { \
- ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
- } else { \
- ZVAL_FALSE(EX_VAR(opline->result.var)); \
- ZEND_VM_SET_NEXT_OPCODE(opline + 1); \
- } \
- ZEND_VM_CONTINUE(); \
- } while (0)
- #define ZEND_VM_SMART_BRANCH_FALSE_JMPZ() do { \
- ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
- ZEND_VM_CONTINUE(); \
- } while (0)
- #define ZEND_VM_SMART_BRANCH_FALSE_JMPNZ() do { \
- ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
- ZEND_VM_CONTINUE(); \
- } while (0)
- #define ZEND_VM_SMART_BRANCH_FALSE_NONE() do { \
- ZVAL_FALSE(EX_VAR(opline->result.var)); \
- ZEND_VM_NEXT_OPCODE(); \
- } while (0)
- #ifdef __GNUC__
- # define ZEND_VM_GUARD(name) __asm__("#" #name)
- #else
- # define ZEND_VM_GUARD(name)
- #endif
- #define UNDEF_RESULT() do { \
- if (opline->result_type & (IS_VAR | IS_TMP_VAR)) { \
- ZVAL_UNDEF(EX_VAR(opline->result.var)); \
- } \
- } while (0)
- #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(const zend_op *opline, int op_type, const znode_op *node, const zend_execute_data *execute_data, int type)
- {
- zval *ret;
- switch (op_type) {
- case IS_CONST:
- ret = RT_CONSTANT(opline, *node);
- break;
- case IS_TMP_VAR:
- case IS_VAR:
- case IS_CV:
- ret = EX_VAR(node->var);
- break;
- default:
- ret = NULL;
- break;
- }
- return ret;
- }