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zend_types.h
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zend_types.h
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/*
+----------------------------------------------------------------------+
| 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> |
| Xinchen Hui <laruence@php.net> |
+----------------------------------------------------------------------+
*/
#ifndef ZEND_TYPES_H
#define ZEND_TYPES_H
#include "zend_portability.h"
#include "zend_long.h"
#include <stdbool.h>
#include <stdint.h>
#ifdef __SSE2__
# include <mmintrin.h>
# include <emmintrin.h>
#endif
#if defined(__AVX2__)
# include <immintrin.h>
#endif
#if defined(__aarch64__) || defined(_M_ARM64)
# include <arm_neon.h>
#endif
#ifdef WORDS_BIGENDIAN
# define ZEND_ENDIAN_LOHI(lo, hi) hi; lo;
# define ZEND_ENDIAN_LOHI_3(lo, mi, hi) hi; mi; lo;
# define ZEND_ENDIAN_LOHI_4(a, b, c, d) d; c; b; a;
# define ZEND_ENDIAN_LOHI_C(lo, hi) hi, lo
# define ZEND_ENDIAN_LOHI_C_3(lo, mi, hi) hi, mi, lo,
# define ZEND_ENDIAN_LOHI_C_4(a, b, c, d) d, c, b, a
#else
# define ZEND_ENDIAN_LOHI(lo, hi) lo; hi;
# define ZEND_ENDIAN_LOHI_3(lo, mi, hi) lo; mi; hi;
# define ZEND_ENDIAN_LOHI_4(a, b, c, d) a; b; c; d;
# define ZEND_ENDIAN_LOHI_C(lo, hi) lo, hi
# define ZEND_ENDIAN_LOHI_C_3(lo, mi, hi) lo, mi, hi,
# define ZEND_ENDIAN_LOHI_C_4(a, b, c, d) a, b, c, d
#endif
typedef unsigned char zend_uchar;
typedef enum {
SUCCESS = 0,
FAILURE = -1, /* this MUST stay a negative number, or it may affect functions! */
} ZEND_RESULT_CODE;
typedef ZEND_RESULT_CODE zend_result;
#ifdef ZEND_ENABLE_ZVAL_LONG64
# ifdef ZEND_WIN32
# define ZEND_SIZE_MAX _UI64_MAX
# else
# define ZEND_SIZE_MAX SIZE_MAX
# endif
#else
# if defined(ZEND_WIN32)
# define ZEND_SIZE_MAX _UI32_MAX
# else
# define ZEND_SIZE_MAX SIZE_MAX
# endif
#endif
#ifdef ZTS
#define ZEND_TLS static TSRM_TLS
#define ZEND_EXT_TLS TSRM_TLS
#else
#define ZEND_TLS static
#define ZEND_EXT_TLS
#endif
typedef struct _zend_object_handlers zend_object_handlers;
typedef struct _zend_class_entry zend_class_entry;
typedef union _zend_function zend_function;
typedef struct _zend_execute_data zend_execute_data;
typedef struct _zval_struct zval;
typedef struct _zend_refcounted zend_refcounted;
typedef struct _zend_string zend_string;
typedef struct _zend_array zend_array;
typedef struct _zend_object zend_object;
typedef struct _zend_resource zend_resource;
typedef struct _zend_reference zend_reference;
typedef struct _zend_ast_ref zend_ast_ref;
typedef struct _zend_ast zend_ast;
typedef int (*compare_func_t)(const void *, const void *);
typedef void (*swap_func_t)(void *, void *);
typedef void (*sort_func_t)(void *, size_t, size_t, compare_func_t, swap_func_t);
typedef void (*dtor_func_t)(zval *pDest);
typedef void (*copy_ctor_func_t)(zval *pElement);
/*
* zend_type - is an abstraction layer to represent information about type hint.
* It shouldn't be used directly. Only through ZEND_TYPE_* macros.
*
* ZEND_TYPE_IS_SET() - checks if there is a type-hint
* ZEND_TYPE_IS_ONLY_MASK() - checks if type-hint refer to standard type only
* ZEND_TYPE_IS_COMPLEX() - checks if type is a type_list, or contains a class either as a CE or as a name
* ZEND_TYPE_HAS_NAME() - checks if type-hint contains some class as zend_string *
* ZEND_TYPE_HAS_LITERAL_NAME() - checks if type-hint contains some class as const char *
* ZEND_TYPE_IS_INTERSECTION() - checks if the type_list represents an intersection type list
* ZEND_TYPE_IS_UNION() - checks if the type_list represents a union type list
*
* ZEND_TYPE_NAME() - returns referenced class name
* ZEND_TYPE_PURE_MASK() - returns MAY_BE_* type mask
* ZEND_TYPE_FULL_MASK() - returns MAY_BE_* type mask together with other flags
*
* ZEND_TYPE_ALLOW_NULL() - checks if NULL is allowed
*
* ZEND_TYPE_INIT_*() should be used for construction.
*/
typedef struct {
/* Not using a union here, because there's no good way to initialize them
* in a way that is supported in both C and C++ (designated initializers
* are only supported since C++20). */
void *ptr;
uint32_t type_mask;
/* TODO: We could use the extra 32-bit of padding on 64-bit systems. */
} zend_type;
typedef struct {
uint32_t num_types;
zend_type types[1];
} zend_type_list;
#define _ZEND_TYPE_EXTRA_FLAGS_SHIFT 25
#define _ZEND_TYPE_MASK ((1u << 25) - 1)
/* Only one of these bits may be set. */
#define _ZEND_TYPE_NAME_BIT (1u << 24)
// Used to signify that type.ptr is not a `zend_string*` but a `const char*`,
#define _ZEND_TYPE_LITERAL_NAME_BIT (1u << 23)
#define _ZEND_TYPE_LIST_BIT (1u << 22)
#define _ZEND_TYPE_KIND_MASK (_ZEND_TYPE_LIST_BIT|_ZEND_TYPE_NAME_BIT|_ZEND_TYPE_LITERAL_NAME_BIT)
/* For BC behaviour with iterable type */
#define _ZEND_TYPE_ITERABLE_BIT (1u << 21)
/* Whether the type list is arena allocated */
#define _ZEND_TYPE_ARENA_BIT (1u << 20)
/* Whether the type list is an intersection type */
#define _ZEND_TYPE_INTERSECTION_BIT (1u << 19)
/* Whether the type is a union type */
#define _ZEND_TYPE_UNION_BIT (1u << 18)
/* Type mask excluding the flags above. */
#define _ZEND_TYPE_MAY_BE_MASK ((1u << 18) - 1)
/* Must have same value as MAY_BE_NULL */
#define _ZEND_TYPE_NULLABLE_BIT 0x2u
#define ZEND_TYPE_IS_SET(t) \
(((t).type_mask & _ZEND_TYPE_MASK) != 0)
/* If a type is complex it means it's either a list with a union or intersection,
* or the void pointer is a class name */
#define ZEND_TYPE_IS_COMPLEX(t) \
((((t).type_mask) & _ZEND_TYPE_KIND_MASK) != 0)
#define ZEND_TYPE_HAS_NAME(t) \
((((t).type_mask) & _ZEND_TYPE_NAME_BIT) != 0)
#define ZEND_TYPE_HAS_LITERAL_NAME(t) \
((((t).type_mask) & _ZEND_TYPE_LITERAL_NAME_BIT) != 0)
#define ZEND_TYPE_HAS_LIST(t) \
((((t).type_mask) & _ZEND_TYPE_LIST_BIT) != 0)
#define ZEND_TYPE_IS_ITERABLE_FALLBACK(t) \
((((t).type_mask) & _ZEND_TYPE_ITERABLE_BIT) != 0)
#define ZEND_TYPE_IS_INTERSECTION(t) \
((((t).type_mask) & _ZEND_TYPE_INTERSECTION_BIT) != 0)
#define ZEND_TYPE_IS_UNION(t) \
((((t).type_mask) & _ZEND_TYPE_UNION_BIT) != 0)
#define ZEND_TYPE_USES_ARENA(t) \
((((t).type_mask) & _ZEND_TYPE_ARENA_BIT) != 0)
#define ZEND_TYPE_IS_ONLY_MASK(t) \
(ZEND_TYPE_IS_SET(t) && (t).ptr == NULL)
#define ZEND_TYPE_NAME(t) \
((zend_string *) (t).ptr)
#define ZEND_TYPE_LITERAL_NAME(t) \
((const char *) (t).ptr)
#define ZEND_TYPE_LIST(t) \
((zend_type_list *) (t).ptr)
#define ZEND_TYPE_LIST_SIZE(num_types) \
(sizeof(zend_type_list) + ((num_types) - 1) * sizeof(zend_type))
/* This iterates over a zend_type_list. */
#define ZEND_TYPE_LIST_FOREACH(list, type_ptr) do { \
zend_type *_list = (list)->types; \
zend_type *_end = _list + (list)->num_types; \
for (; _list < _end; _list++) { \
type_ptr = _list;
#define ZEND_TYPE_LIST_FOREACH_END() \
} \
} while (0)
/* This iterates over any zend_type. If it's a type list, all list elements will
* be visited. If it's a single type, only the single type is visited. */
#define ZEND_TYPE_FOREACH(type, type_ptr) do { \
zend_type *_cur, *_end; \
if (ZEND_TYPE_HAS_LIST(type)) { \
zend_type_list *_list = ZEND_TYPE_LIST(type); \
_cur = _list->types; \
_end = _cur + _list->num_types; \
} else { \
_cur = &(type); \
_end = _cur + 1; \
} \
do { \
type_ptr = _cur;
#define ZEND_TYPE_FOREACH_END() \
} while (++_cur < _end); \
} while (0)
#define ZEND_TYPE_SET_PTR(t, _ptr) \
((t).ptr = (_ptr))
#define ZEND_TYPE_SET_PTR_AND_KIND(t, _ptr, kind_bit) do { \
(t).ptr = (_ptr); \
(t).type_mask &= ~_ZEND_TYPE_KIND_MASK; \
(t).type_mask |= (kind_bit); \
} while (0)
#define ZEND_TYPE_SET_LIST(t, list) \
ZEND_TYPE_SET_PTR_AND_KIND(t, list, _ZEND_TYPE_LIST_BIT)
/* FULL_MASK() includes the MAY_BE_* type mask, as well as additional metadata bits.
* The PURE_MASK() only includes the MAY_BE_* type mask. */
#define ZEND_TYPE_FULL_MASK(t) \
((t).type_mask)
#define ZEND_TYPE_PURE_MASK(t) \
((t).type_mask & _ZEND_TYPE_MAY_BE_MASK)
#define ZEND_TYPE_FULL_MASK_WITHOUT_NULL(t) \
((t).type_mask & ~_ZEND_TYPE_NULLABLE_BIT)
#define ZEND_TYPE_PURE_MASK_WITHOUT_NULL(t) \
((t).type_mask & _ZEND_TYPE_MAY_BE_MASK & ~_ZEND_TYPE_NULLABLE_BIT)
#define ZEND_TYPE_CONTAINS_CODE(t, code) \
(((t).type_mask & (1u << (code))) != 0)
#define ZEND_TYPE_ALLOW_NULL(t) \
(((t).type_mask & _ZEND_TYPE_NULLABLE_BIT) != 0)
#ifdef __cplusplus
# define _ZEND_TYPE_PREFIX zend_type
#else
/* FIXME: We could add (zend_type) here at some point but this breaks in MSVC because
* (zend_type)(zend_type){} is no longer considered constant. */
# define _ZEND_TYPE_PREFIX
#endif
#define ZEND_TYPE_INIT_NONE(extra_flags) \
_ZEND_TYPE_PREFIX { NULL, (extra_flags) }
#define ZEND_TYPE_INIT_MASK(_type_mask) \
_ZEND_TYPE_PREFIX { NULL, (_type_mask) }
#define ZEND_TYPE_INIT_CODE(code, allow_null, extra_flags) \
ZEND_TYPE_INIT_MASK(((code) == _IS_BOOL ? MAY_BE_BOOL : ( (code) == IS_ITERABLE ? _ZEND_TYPE_ITERABLE_BIT : ((code) == IS_MIXED ? MAY_BE_ANY : (1 << (code))))) \
| ((allow_null) ? _ZEND_TYPE_NULLABLE_BIT : 0) | (extra_flags))
#define ZEND_TYPE_INIT_PTR(ptr, type_kind, allow_null, extra_flags) \
_ZEND_TYPE_PREFIX { (void *) (ptr), \
(type_kind) | ((allow_null) ? _ZEND_TYPE_NULLABLE_BIT : 0) | (extra_flags) }
#define ZEND_TYPE_INIT_PTR_MASK(ptr, type_mask) \
_ZEND_TYPE_PREFIX { (void *) (ptr), (type_mask) }
#define ZEND_TYPE_INIT_UNION(ptr, extra_flags) \
_ZEND_TYPE_PREFIX { (void *) (ptr), (_ZEND_TYPE_LIST_BIT|_ZEND_TYPE_UNION_BIT) | (extra_flags) }
#define ZEND_TYPE_INIT_INTERSECTION(ptr, extra_flags) \
_ZEND_TYPE_PREFIX { (void *) (ptr), (_ZEND_TYPE_LIST_BIT|_ZEND_TYPE_INTERSECTION_BIT) | (extra_flags) }
#define ZEND_TYPE_INIT_CLASS(class_name, allow_null, extra_flags) \
ZEND_TYPE_INIT_PTR(class_name, _ZEND_TYPE_NAME_BIT, allow_null, extra_flags)
#define ZEND_TYPE_INIT_CLASS_MASK(class_name, type_mask) \
ZEND_TYPE_INIT_PTR_MASK(class_name, _ZEND_TYPE_NAME_BIT | (type_mask))
#define ZEND_TYPE_INIT_CLASS_CONST(class_name, allow_null, extra_flags) \
ZEND_TYPE_INIT_PTR(class_name, _ZEND_TYPE_LITERAL_NAME_BIT, allow_null, extra_flags)
#define ZEND_TYPE_INIT_CLASS_CONST_MASK(class_name, type_mask) \
ZEND_TYPE_INIT_PTR_MASK(class_name, (_ZEND_TYPE_LITERAL_NAME_BIT | (type_mask)))
typedef union _zend_value {
zend_long lval; /* long value */
double dval; /* double value */
zend_refcounted *counted;
zend_string *str;
zend_array *arr;
zend_object *obj;
zend_resource *res;
zend_reference *ref;
zend_ast_ref *ast;
zval *zv;
void *ptr;
zend_class_entry *ce;
zend_function *func;
struct {
uint32_t w1;
uint32_t w2;
} ww;
} zend_value;
struct _zval_struct {
zend_value value; /* value */
union {
uint32_t type_info;
struct {
ZEND_ENDIAN_LOHI_3(
uint8_t type, /* active type */
uint8_t type_flags,
union {
uint16_t extra; /* not further specified */
} u)
} v;
} u1;
union {
uint32_t next; /* hash collision chain */
uint32_t cache_slot; /* cache slot (for RECV_INIT) */
uint32_t opline_num; /* opline number (for FAST_CALL) */
uint32_t lineno; /* line number (for ast nodes) */
uint32_t num_args; /* arguments number for EX(This) */
uint32_t fe_pos; /* foreach position */
uint32_t fe_iter_idx; /* foreach iterator index */
uint32_t guard; /* recursion and single property guard */
uint32_t constant_flags; /* constant flags */
uint32_t extra; /* not further specified */
} u2;
};
typedef struct _zend_refcounted_h {
uint32_t refcount; /* reference counter 32-bit */
union {
uint32_t type_info;
} u;
} zend_refcounted_h;
struct _zend_refcounted {
zend_refcounted_h gc;
};
struct _zend_string {
zend_refcounted_h gc;
zend_ulong h; /* hash value */
size_t len;
char val[1];
};
typedef struct _Bucket {
zval val;
zend_ulong h; /* hash value (or numeric index) */
zend_string *key; /* string key or NULL for numerics */
} Bucket;
typedef struct _zend_array HashTable;
struct _zend_array {
zend_refcounted_h gc;
union {
struct {
ZEND_ENDIAN_LOHI_4(
uint8_t flags,
uint8_t _unused,
uint8_t nIteratorsCount,
uint8_t _unused2)
} v;
uint32_t flags;
} u;
uint32_t nTableMask;
union {
uint32_t *arHash; /* hash table (allocated above this pointer) */
Bucket *arData; /* array of hash buckets */
zval *arPacked; /* packed array of zvals */
};
uint32_t nNumUsed;
uint32_t nNumOfElements;
uint32_t nTableSize;
uint32_t nInternalPointer;
zend_long nNextFreeElement;
dtor_func_t pDestructor;
};
/*
* HashTable Data Layout
* =====================
*
* +=============================+
* | HT_HASH(ht, ht->nTableMask) | +=============================+
* | ... | | HT_INVALID_IDX |
* | HT_HASH(ht, -1) | | HT_INVALID_IDX |
* +-----------------------------+ +-----------------------------+
* ht->arData ---> | Bucket[0] | ht->arPacked ---> | ZVAL[0] |
* | ... | | ... |
* | Bucket[ht->nTableSize-1] | | ZVAL[ht->nTableSize-1] |
* +=============================+ +=============================+
*/
#define HT_INVALID_IDX ((uint32_t) -1)
#define HT_MIN_MASK ((uint32_t) -2)
#define HT_MIN_SIZE 8
/* HT_MAX_SIZE is chosen to satisfy the following constraints:
* - HT_SIZE_TO_MASK(HT_MAX_SIZE) != 0
* - HT_SIZE_EX(HT_MAX_SIZE, HT_SIZE_TO_MASK(HT_MAX_SIZE)) does not overflow or
* wrapparound, and is <= the addressable space size
* - HT_MAX_SIZE must be a power of two:
* (nTableSize<HT_MAX_SIZE ? nTableSize+nTableSize : nTableSize) <= HT_MAX_SIZE
*/
#if SIZEOF_SIZE_T == 4
# define HT_MAX_SIZE 0x02000000
# define HT_HASH_TO_BUCKET_EX(data, idx) \
((Bucket*)((char*)(data) + (idx)))
# define HT_IDX_TO_HASH(idx) \
((idx) * sizeof(Bucket))
# define HT_HASH_TO_IDX(idx) \
((idx) / sizeof(Bucket))
#elif SIZEOF_SIZE_T == 8
# define HT_MAX_SIZE 0x40000000
# define HT_HASH_TO_BUCKET_EX(data, idx) \
((data) + (idx))
# define HT_IDX_TO_HASH(idx) \
(idx)
# define HT_HASH_TO_IDX(idx) \
(idx)
#else
# error "Unknown SIZEOF_SIZE_T"
#endif
#define HT_HASH_EX(data, idx) \
((uint32_t*)(data))[(int32_t)(idx)]
#define HT_HASH(ht, idx) \
HT_HASH_EX((ht)->arHash, idx)
#define HT_SIZE_TO_MASK(nTableSize) \
((uint32_t)(-((nTableSize) + (nTableSize))))
#define HT_HASH_SIZE(nTableMask) \
(((size_t)-(uint32_t)(nTableMask)) * sizeof(uint32_t))
#define HT_DATA_SIZE(nTableSize) \
((size_t)(nTableSize) * sizeof(Bucket))
#define HT_SIZE_EX(nTableSize, nTableMask) \
(HT_DATA_SIZE((nTableSize)) + HT_HASH_SIZE((nTableMask)))
#define HT_SIZE(ht) \
HT_SIZE_EX((ht)->nTableSize, (ht)->nTableMask)
#define HT_USED_SIZE(ht) \
(HT_HASH_SIZE((ht)->nTableMask) + ((size_t)(ht)->nNumUsed * sizeof(Bucket)))
#define HT_PACKED_DATA_SIZE(nTableSize) \
((size_t)(nTableSize) * sizeof(zval))
#define HT_PACKED_SIZE_EX(nTableSize, nTableMask) \
(HT_PACKED_DATA_SIZE((nTableSize)) + HT_HASH_SIZE((nTableMask)))
#define HT_PACKED_SIZE(ht) \
HT_PACKED_SIZE_EX((ht)->nTableSize, (ht)->nTableMask)
#define HT_PACKED_USED_SIZE(ht) \
(HT_HASH_SIZE((ht)->nTableMask) + ((size_t)(ht)->nNumUsed * sizeof(zval)))
#if defined(__AVX2__)
# define HT_HASH_RESET(ht) do { \
char *p = (char*)&HT_HASH(ht, (ht)->nTableMask); \
size_t size = HT_HASH_SIZE((ht)->nTableMask); \
__m256i ymm0 = _mm256_setzero_si256(); \
ymm0 = _mm256_cmpeq_epi64(ymm0, ymm0); \
ZEND_ASSERT(size >= 64 && ((size & 0x3f) == 0)); \
do { \
_mm256_storeu_si256((__m256i*)p, ymm0); \
_mm256_storeu_si256((__m256i*)(p+32), ymm0); \
p += 64; \
size -= 64; \
} while (size != 0); \
} while (0)
#elif defined(__SSE2__)
# define HT_HASH_RESET(ht) do { \
char *p = (char*)&HT_HASH(ht, (ht)->nTableMask); \
size_t size = HT_HASH_SIZE((ht)->nTableMask); \
__m128i xmm0 = _mm_setzero_si128(); \
xmm0 = _mm_cmpeq_epi8(xmm0, xmm0); \
ZEND_ASSERT(size >= 64 && ((size & 0x3f) == 0)); \
do { \
_mm_storeu_si128((__m128i*)p, xmm0); \
_mm_storeu_si128((__m128i*)(p+16), xmm0); \
_mm_storeu_si128((__m128i*)(p+32), xmm0); \
_mm_storeu_si128((__m128i*)(p+48), xmm0); \
p += 64; \
size -= 64; \
} while (size != 0); \
} while (0)
#elif defined(__aarch64__) || defined(_M_ARM64)
# define HT_HASH_RESET(ht) do { \
char *p = (char*)&HT_HASH(ht, (ht)->nTableMask); \
size_t size = HT_HASH_SIZE((ht)->nTableMask); \
int32x4_t t = vdupq_n_s32(-1); \
ZEND_ASSERT(size >= 64 && ((size & 0x3f) == 0)); \
do { \
vst1q_s32((int32_t*)p, t); \
vst1q_s32((int32_t*)(p+16), t); \
vst1q_s32((int32_t*)(p+32), t); \
vst1q_s32((int32_t*)(p+48), t); \
p += 64; \
size -= 64; \
} while (size != 0); \
} while (0)
#else
# define HT_HASH_RESET(ht) \
memset(&HT_HASH(ht, (ht)->nTableMask), HT_INVALID_IDX, HT_HASH_SIZE((ht)->nTableMask))
#endif
#define HT_HASH_RESET_PACKED(ht) do { \
HT_HASH(ht, -2) = HT_INVALID_IDX; \
HT_HASH(ht, -1) = HT_INVALID_IDX; \
} while (0)
#define HT_HASH_TO_BUCKET(ht, idx) \
HT_HASH_TO_BUCKET_EX((ht)->arData, idx)
#define HT_SET_DATA_ADDR(ht, ptr) do { \
(ht)->arData = (Bucket*)(((char*)(ptr)) + HT_HASH_SIZE((ht)->nTableMask)); \
} while (0)
#define HT_GET_DATA_ADDR(ht) \
((char*)((ht)->arData) - HT_HASH_SIZE((ht)->nTableMask))
typedef uint32_t HashPosition;
typedef struct _HashTableIterator {
HashTable *ht;
HashPosition pos;
uint32_t next_copy; // circular linked list via index into EG(ht_iterators)
} HashTableIterator;
struct _zend_object {
zend_refcounted_h gc;
uint32_t handle; // TODO: may be removed ???
zend_class_entry *ce;
const zend_object_handlers *handlers;
HashTable *properties;
zval properties_table[1];
};
struct _zend_resource {
zend_refcounted_h gc;
zend_long handle; // TODO: may be removed ???
int type;
void *ptr;
};
typedef struct {
size_t num;
size_t num_allocated;
struct _zend_property_info *ptr[1];
} zend_property_info_list;
typedef union {
struct _zend_property_info *ptr;
uintptr_t list;
} zend_property_info_source_list;
#define ZEND_PROPERTY_INFO_SOURCE_FROM_LIST(list) (0x1 | (uintptr_t) (list))
#define ZEND_PROPERTY_INFO_SOURCE_TO_LIST(list) ((zend_property_info_list *) ((list) & ~0x1))
#define ZEND_PROPERTY_INFO_SOURCE_IS_LIST(list) ((list) & 0x1)
struct _zend_reference {
zend_refcounted_h gc;
zval val;
zend_property_info_source_list sources;
};
struct _zend_ast_ref {
zend_refcounted_h gc;
/*zend_ast ast; zend_ast follows the zend_ast_ref structure */
};
/* Regular data types: Must be in sync with zend_variables.c. */
#define IS_UNDEF 0
#define IS_NULL 1
#define IS_FALSE 2
#define IS_TRUE 3
#define IS_LONG 4
#define IS_DOUBLE 5
#define IS_STRING 6
#define IS_ARRAY 7
#define IS_OBJECT 8
#define IS_RESOURCE 9
#define IS_REFERENCE 10
#define IS_CONSTANT_AST 11 /* Constant expressions */
/* Fake types used only for type hinting.
* These are allowed to overlap with the types below. */
#define IS_CALLABLE 12
#define IS_ITERABLE 13
#define IS_VOID 14
#define IS_STATIC 15
#define IS_MIXED 16
#define IS_NEVER 17
/* internal types */
#define IS_INDIRECT 12
#define IS_PTR 13
#define IS_ALIAS_PTR 14
#define _IS_ERROR 15
/* used for casts */
#define _IS_BOOL 18
#define _IS_NUMBER 19
/* guard flags */
#define ZEND_GUARD_PROPERTY_GET (1<<0)
#define ZEND_GUARD_PROPERTY_SET (1<<1)
#define ZEND_GUARD_PROPERTY_UNSET (1<<2)
#define ZEND_GUARD_PROPERTY_ISSET (1<<3)
#define ZEND_GUARD_PROPERTY_MASK 15
#define ZEND_GUARD_RECURSION_DEBUG (1<<4)
#define ZEND_GUARD_RECURSION_EXPORT (1<<5)
#define ZEND_GUARD_RECURSION_JSON (1<<6)
#define ZEND_GUARD_RECURSION_TYPE(t) ZEND_GUARD_RECURSION_ ## t
#define ZEND_GUARD_IS_RECURSIVE(pg, t) ((*pg & ZEND_GUARD_RECURSION_TYPE(t)) != 0)
#define ZEND_GUARD_PROTECT_RECURSION(pg, t) *pg |= ZEND_GUARD_RECURSION_TYPE(t)
#define ZEND_GUARD_UNPROTECT_RECURSION(pg, t) *pg &= ~ZEND_GUARD_RECURSION_TYPE(t)
static zend_always_inline uint8_t zval_get_type(const zval* pz) {
return pz->u1.v.type;
}
#define ZEND_SAME_FAKE_TYPE(faketype, realtype) ( \
(faketype) == (realtype) \
|| ((faketype) == _IS_BOOL && ((realtype) == IS_TRUE || (realtype) == IS_FALSE)) \
)
/* we should never set just Z_TYPE, we should set Z_TYPE_INFO */
#define Z_TYPE(zval) zval_get_type(&(zval))
#define Z_TYPE_P(zval_p) Z_TYPE(*(zval_p))
#define Z_TYPE_FLAGS(zval) (zval).u1.v.type_flags
#define Z_TYPE_FLAGS_P(zval_p) Z_TYPE_FLAGS(*(zval_p))
#define Z_TYPE_EXTRA(zval) (zval).u1.v.u.extra
#define Z_TYPE_EXTRA_P(zval_p) Z_TYPE_EXTRA(*(zval_p))
#define Z_TYPE_INFO(zval) (zval).u1.type_info
#define Z_TYPE_INFO_P(zval_p) Z_TYPE_INFO(*(zval_p))
#define Z_NEXT(zval) (zval).u2.next
#define Z_NEXT_P(zval_p) Z_NEXT(*(zval_p))
#define Z_CACHE_SLOT(zval) (zval).u2.cache_slot
#define Z_CACHE_SLOT_P(zval_p) Z_CACHE_SLOT(*(zval_p))
#define Z_LINENO(zval) (zval).u2.lineno
#define Z_LINENO_P(zval_p) Z_LINENO(*(zval_p))
#define Z_OPLINE_NUM(zval) (zval).u2.opline_num
#define Z_OPLINE_NUM_P(zval_p) Z_OPLINE_NUM(*(zval_p))
#define Z_FE_POS(zval) (zval).u2.fe_pos
#define Z_FE_POS_P(zval_p) Z_FE_POS(*(zval_p))
#define Z_FE_ITER(zval) (zval).u2.fe_iter_idx
#define Z_FE_ITER_P(zval_p) Z_FE_ITER(*(zval_p))
#define Z_GUARD(zval) (zval).u2.guard
#define Z_GUARD_P(zval_p) Z_GUARD(*(zval_p))
#define Z_CONSTANT_FLAGS(zval) (zval).u2.constant_flags
#define Z_CONSTANT_FLAGS_P(zval_p) Z_CONSTANT_FLAGS(*(zval_p))
#define Z_EXTRA(zval) (zval).u2.extra
#define Z_EXTRA_P(zval_p) Z_EXTRA(*(zval_p))
#define Z_COUNTED(zval) (zval).value.counted
#define Z_COUNTED_P(zval_p) Z_COUNTED(*(zval_p))
#define Z_TYPE_MASK 0xff
#define Z_TYPE_FLAGS_MASK 0xff00
#define Z_TYPE_FLAGS_SHIFT 8
#define Z_TYPE_INFO_EXTRA_SHIFT 16
#define GC_REFCOUNT(p) zend_gc_refcount(&(p)->gc)
#define GC_SET_REFCOUNT(p, rc) zend_gc_set_refcount(&(p)->gc, rc)
#define GC_ADDREF(p) zend_gc_addref(&(p)->gc)
#define GC_DELREF(p) zend_gc_delref(&(p)->gc)
#define GC_ADDREF_EX(p, rc) zend_gc_addref_ex(&(p)->gc, rc)
#define GC_DELREF_EX(p, rc) zend_gc_delref_ex(&(p)->gc, rc)
#define GC_TRY_ADDREF(p) zend_gc_try_addref(&(p)->gc)
#define GC_TRY_DELREF(p) zend_gc_try_delref(&(p)->gc)
#define GC_DTOR(p) \
do { \
zend_refcounted_h *_p = &(p)->gc; \
if (zend_gc_delref(_p) == 0) { \
rc_dtor_func((zend_refcounted *)_p); \
} else { \
gc_check_possible_root((zend_refcounted *)_p); \
} \
} while (0)
#define GC_DTOR_NO_REF(p) \
do { \
zend_refcounted_h *_p = &(p)->gc; \
if (zend_gc_delref(_p) == 0) { \
rc_dtor_func((zend_refcounted *)_p); \
} else { \
gc_check_possible_root_no_ref((zend_refcounted *)_p); \
} \
} while (0)
#define GC_TYPE_MASK 0x0000000f
#define GC_FLAGS_MASK 0x000003f0
#define GC_INFO_MASK 0xfffffc00
#define GC_FLAGS_SHIFT 0
#define GC_INFO_SHIFT 10
static zend_always_inline uint8_t zval_gc_type(uint32_t gc_type_info) {
return (gc_type_info & GC_TYPE_MASK);
}
static zend_always_inline uint32_t zval_gc_flags(uint32_t gc_type_info) {
return (gc_type_info >> GC_FLAGS_SHIFT) & (GC_FLAGS_MASK >> GC_FLAGS_SHIFT);
}
static zend_always_inline uint32_t zval_gc_info(uint32_t gc_type_info) {
return (gc_type_info >> GC_INFO_SHIFT);
}
#define GC_TYPE_INFO(p) (p)->gc.u.type_info
#define GC_TYPE(p) zval_gc_type(GC_TYPE_INFO(p))
#define GC_FLAGS(p) zval_gc_flags(GC_TYPE_INFO(p))
#define GC_INFO(p) zval_gc_info(GC_TYPE_INFO(p))
#define GC_ADD_FLAGS(p, flags) do { \
GC_TYPE_INFO(p) |= (flags) << GC_FLAGS_SHIFT; \
} while (0)
#define GC_DEL_FLAGS(p, flags) do { \
GC_TYPE_INFO(p) &= ~((flags) << GC_FLAGS_SHIFT); \
} while (0)
#define Z_GC_TYPE(zval) GC_TYPE(Z_COUNTED(zval))
#define Z_GC_TYPE_P(zval_p) Z_GC_TYPE(*(zval_p))
#define Z_GC_FLAGS(zval) GC_FLAGS(Z_COUNTED(zval))
#define Z_GC_FLAGS_P(zval_p) Z_GC_FLAGS(*(zval_p))
#define Z_GC_INFO(zval) GC_INFO(Z_COUNTED(zval))
#define Z_GC_INFO_P(zval_p) Z_GC_INFO(*(zval_p))
#define Z_GC_TYPE_INFO(zval) GC_TYPE_INFO(Z_COUNTED(zval))
#define Z_GC_TYPE_INFO_P(zval_p) Z_GC_TYPE_INFO(*(zval_p))
/* zval_gc_flags(zval.value->gc.u.type_info) (common flags) */
#define GC_NOT_COLLECTABLE (1<<4)
#define GC_PROTECTED (1<<5) /* used for recursion detection */
#define GC_IMMUTABLE (1<<6) /* can't be changed in place */
#define GC_PERSISTENT (1<<7) /* allocated using malloc */
#define GC_PERSISTENT_LOCAL (1<<8) /* persistent, but thread-local */
#define GC_NULL (IS_NULL | (GC_NOT_COLLECTABLE << GC_FLAGS_SHIFT))
#define GC_STRING (IS_STRING | (GC_NOT_COLLECTABLE << GC_FLAGS_SHIFT))
#define GC_ARRAY IS_ARRAY
#define GC_OBJECT IS_OBJECT
#define GC_RESOURCE (IS_RESOURCE | (GC_NOT_COLLECTABLE << GC_FLAGS_SHIFT))
#define GC_REFERENCE (IS_REFERENCE | (GC_NOT_COLLECTABLE << GC_FLAGS_SHIFT))
#define GC_CONSTANT_AST (IS_CONSTANT_AST | (GC_NOT_COLLECTABLE << GC_FLAGS_SHIFT))
/* zval.u1.v.type_flags */
#define IS_TYPE_REFCOUNTED (1<<0)
#define IS_TYPE_COLLECTABLE (1<<1)
/* Used for static variables to check if they have been initialized. We can't use IS_UNDEF because
* we can't store IS_UNDEF zvals in the static_variables HashTable. This needs to live in type_info
* so that the ZEND_ASSIGN overrides it but is moved to extra to avoid breaking the Z_REFCOUNTED()
* optimization that only checks for Z_TYPE_FLAGS() without `& (IS_TYPE_COLLECTABLE|IS_TYPE_REFCOUNTED)`. */
#define IS_STATIC_VAR_UNINITIALIZED (1<<0)
#if 1
/* This optimized version assumes that we have a single "type_flag" */
/* IS_TYPE_COLLECTABLE may be used only with IS_TYPE_REFCOUNTED */
# define Z_TYPE_INFO_REFCOUNTED(t) (((t) & Z_TYPE_FLAGS_MASK) != 0)
#else
# define Z_TYPE_INFO_REFCOUNTED(t) (((t) & (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT)) != 0)
#endif
/* extended types */
#define IS_INTERNED_STRING_EX IS_STRING
#define IS_STRING_EX (IS_STRING | (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT))
#define IS_ARRAY_EX (IS_ARRAY | (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT) | (IS_TYPE_COLLECTABLE << Z_TYPE_FLAGS_SHIFT))
#define IS_OBJECT_EX (IS_OBJECT | (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT) | (IS_TYPE_COLLECTABLE << Z_TYPE_FLAGS_SHIFT))
#define IS_RESOURCE_EX (IS_RESOURCE | (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT))
#define IS_REFERENCE_EX (IS_REFERENCE | (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT))
#define IS_CONSTANT_AST_EX (IS_CONSTANT_AST | (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT))
/* string flags (zval.value->gc.u.flags) */
#define IS_STR_CLASS_NAME_MAP_PTR GC_PROTECTED /* refcount is a map_ptr offset of class_entry */
#define IS_STR_INTERNED GC_IMMUTABLE /* interned string */
#define IS_STR_PERSISTENT GC_PERSISTENT /* allocated using malloc */
#define IS_STR_PERMANENT (1<<8) /* relives request boundary */
#define IS_STR_VALID_UTF8 (1<<9) /* valid UTF-8 according to PCRE */
/* array flags */
#define IS_ARRAY_IMMUTABLE GC_IMMUTABLE
#define IS_ARRAY_PERSISTENT GC_PERSISTENT
/* object flags (zval.value->gc.u.flags) */
#define IS_OBJ_WEAKLY_REFERENCED GC_PERSISTENT
#define IS_OBJ_DESTRUCTOR_CALLED (1<<8)
#define IS_OBJ_FREE_CALLED (1<<9)
#define OBJ_FLAGS(obj) GC_FLAGS(obj)
/* Fast class cache */
#define ZSTR_HAS_CE_CACHE(s) (GC_FLAGS(s) & IS_STR_CLASS_NAME_MAP_PTR)
#define ZSTR_GET_CE_CACHE(s) ZSTR_GET_CE_CACHE_EX(s, 1)
#define ZSTR_SET_CE_CACHE(s, ce) ZSTR_SET_CE_CACHE_EX(s, ce, 1)
#define ZSTR_VALID_CE_CACHE(s) EXPECTED((GC_REFCOUNT(s)-1)/sizeof(void *) < CG(map_ptr_last))
#define ZSTR_GET_CE_CACHE_EX(s, validate) \
((!(validate) || ZSTR_VALID_CE_CACHE(s)) ? GET_CE_CACHE(GC_REFCOUNT(s)) : NULL)
#define ZSTR_SET_CE_CACHE_EX(s, ce, validate) do { \
if (!(validate) || ZSTR_VALID_CE_CACHE(s)) { \
ZEND_ASSERT((validate) || ZSTR_VALID_CE_CACHE(s)); \
SET_CE_CACHE(GC_REFCOUNT(s), ce); \
} \
} while (0)
#define GET_CE_CACHE(ce_cache) \
(*(zend_class_entry **)ZEND_MAP_PTR_OFFSET2PTR(ce_cache))
#define SET_CE_CACHE(ce_cache, ce) do { \
*((zend_class_entry **)ZEND_MAP_PTR_OFFSET2PTR(ce_cache)) = ce; \
} while (0)
/* Recursion protection macros must be used only for arrays and objects */
#define GC_IS_RECURSIVE(p) \
(GC_FLAGS(p) & GC_PROTECTED)
#define GC_PROTECT_RECURSION(p) do { \
GC_ADD_FLAGS(p, GC_PROTECTED); \
} while (0)
#define GC_UNPROTECT_RECURSION(p) do { \
GC_DEL_FLAGS(p, GC_PROTECTED); \
} while (0)
#define GC_TRY_PROTECT_RECURSION(p) do { \
if (!(GC_FLAGS(p) & GC_IMMUTABLE)) GC_PROTECT_RECURSION(p); \
} while (0)
#define GC_TRY_UNPROTECT_RECURSION(p) do { \
if (!(GC_FLAGS(p) & GC_IMMUTABLE)) GC_UNPROTECT_RECURSION(p); \
} while (0)
#define Z_IS_RECURSIVE(zval) GC_IS_RECURSIVE(Z_COUNTED(zval))
#define Z_PROTECT_RECURSION(zval) GC_PROTECT_RECURSION(Z_COUNTED(zval))
#define Z_UNPROTECT_RECURSION(zval) GC_UNPROTECT_RECURSION(Z_COUNTED(zval))
#define Z_IS_RECURSIVE_P(zv) Z_IS_RECURSIVE(*(zv))
#define Z_PROTECT_RECURSION_P(zv) Z_PROTECT_RECURSION(*(zv))
#define Z_UNPROTECT_RECURSION_P(zv) Z_UNPROTECT_RECURSION(*(zv))
#define ZEND_GUARD_OR_GC_IS_RECURSIVE(pg, t, zobj) \
(pg ? ZEND_GUARD_IS_RECURSIVE(pg, t) : GC_IS_RECURSIVE(zobj))
#define ZEND_GUARD_OR_GC_PROTECT_RECURSION(pg, t, zobj) do { \
if (pg) { \
ZEND_GUARD_PROTECT_RECURSION(pg, t); \
} else { \
GC_PROTECT_RECURSION(zobj); \
} \
} while(0)
#define ZEND_GUARD_OR_GC_UNPROTECT_RECURSION(pg, t, zobj) do { \
if (pg) { \
ZEND_GUARD_UNPROTECT_RECURSION(pg, t); \
} else { \
GC_UNPROTECT_RECURSION(zobj); \
} \
} while(0)
/* All data types < IS_STRING have their constructor/destructors skipped */
#define Z_CONSTANT(zval) (Z_TYPE(zval) == IS_CONSTANT_AST)
#define Z_CONSTANT_P(zval_p) Z_CONSTANT(*(zval_p))
#if 1
/* This optimized version assumes that we have a single "type_flag" */
/* IS_TYPE_COLLECTABLE may be used only with IS_TYPE_REFCOUNTED */
#define Z_REFCOUNTED(zval) (Z_TYPE_FLAGS(zval) != 0)
#else
#define Z_REFCOUNTED(zval) ((Z_TYPE_FLAGS(zval) & IS_TYPE_REFCOUNTED) != 0)
#endif
#define Z_REFCOUNTED_P(zval_p) Z_REFCOUNTED(*(zval_p))
#define Z_COLLECTABLE(zval) ((Z_TYPE_FLAGS(zval) & IS_TYPE_COLLECTABLE) != 0)
#define Z_COLLECTABLE_P(zval_p) Z_COLLECTABLE(*(zval_p))
/* deprecated: (COPYABLE is the same as IS_ARRAY) */
#define Z_COPYABLE(zval) (Z_TYPE(zval) == IS_ARRAY)
#define Z_COPYABLE_P(zval_p) Z_COPYABLE(*(zval_p))
/* deprecated: (IMMUTABLE is the same as IS_ARRAY && !REFCOUNTED) */
#define Z_IMMUTABLE(zval) (Z_TYPE_INFO(zval) == IS_ARRAY)
#define Z_IMMUTABLE_P(zval_p) Z_IMMUTABLE(*(zval_p))
#define Z_OPT_IMMUTABLE(zval) Z_IMMUTABLE(zval_p)
#define Z_OPT_IMMUTABLE_P(zval_p) Z_IMMUTABLE(*(zval_p))
/* the following Z_OPT_* macros make better code when Z_TYPE_INFO accessed before */
#define Z_OPT_TYPE(zval) (Z_TYPE_INFO(zval) & Z_TYPE_MASK)
#define Z_OPT_TYPE_P(zval_p) Z_OPT_TYPE(*(zval_p))
#define Z_OPT_CONSTANT(zval) (Z_OPT_TYPE(zval) == IS_CONSTANT_AST)
#define Z_OPT_CONSTANT_P(zval_p) Z_OPT_CONSTANT(*(zval_p))
#define Z_OPT_REFCOUNTED(zval) Z_TYPE_INFO_REFCOUNTED(Z_TYPE_INFO(zval))
#define Z_OPT_REFCOUNTED_P(zval_p) Z_OPT_REFCOUNTED(*(zval_p))
/* deprecated: (COPYABLE is the same as IS_ARRAY) */
#define Z_OPT_COPYABLE(zval) (Z_OPT_TYPE(zval) == IS_ARRAY)
#define Z_OPT_COPYABLE_P(zval_p) Z_OPT_COPYABLE(*(zval_p))
#define Z_OPT_ISREF(zval) (Z_OPT_TYPE(zval) == IS_REFERENCE)
#define Z_OPT_ISREF_P(zval_p) Z_OPT_ISREF(*(zval_p))
#define Z_ISREF(zval) (Z_TYPE(zval) == IS_REFERENCE)
#define Z_ISREF_P(zval_p) Z_ISREF(*(zval_p))
#define Z_ISUNDEF(zval) (Z_TYPE(zval) == IS_UNDEF)
#define Z_ISUNDEF_P(zval_p) Z_ISUNDEF(*(zval_p))
#define Z_ISNULL(zval) (Z_TYPE(zval) == IS_NULL)
#define Z_ISNULL_P(zval_p) Z_ISNULL(*(zval_p))
#define Z_ISERROR(zval) (Z_TYPE(zval) == _IS_ERROR)
#define Z_ISERROR_P(zval_p) Z_ISERROR(*(zval_p))
#define Z_LVAL(zval) (zval).value.lval
#define Z_LVAL_P(zval_p) Z_LVAL(*(zval_p))
#define Z_DVAL(zval) (zval).value.dval
#define Z_DVAL_P(zval_p) Z_DVAL(*(zval_p))
#define Z_STR(zval) (zval).value.str
#define Z_STR_P(zval_p) Z_STR(*(zval_p))
#define Z_STRVAL(zval) ZSTR_VAL(Z_STR(zval))
#define Z_STRVAL_P(zval_p) Z_STRVAL(*(zval_p))
#define Z_STRLEN(zval) ZSTR_LEN(Z_STR(zval))
#define Z_STRLEN_P(zval_p) Z_STRLEN(*(zval_p))
#define Z_STRHASH(zval) ZSTR_HASH(Z_STR(zval))
#define Z_STRHASH_P(zval_p) Z_STRHASH(*(zval_p))
#define Z_ARR(zval) (zval).value.arr
#define Z_ARR_P(zval_p) Z_ARR(*(zval_p))
#define Z_ARRVAL(zval) Z_ARR(zval)
#define Z_ARRVAL_P(zval_p) Z_ARRVAL(*(zval_p))
#define Z_OBJ(zval) (zval).value.obj
#define Z_OBJ_P(zval_p) Z_OBJ(*(zval_p))
#define Z_OBJ_HT(zval) Z_OBJ(zval)->handlers
#define Z_OBJ_HT_P(zval_p) Z_OBJ_HT(*(zval_p))
#define Z_OBJ_HANDLER(zval, hf) Z_OBJ_HT((zval))->hf
#define Z_OBJ_HANDLER_P(zv_p, hf) Z_OBJ_HANDLER(*(zv_p), hf)
#define Z_OBJ_HANDLE(zval) (Z_OBJ((zval)))->handle
#define Z_OBJ_HANDLE_P(zval_p) Z_OBJ_HANDLE(*(zval_p))
#define Z_OBJCE(zval) (Z_OBJ(zval)->ce)
#define Z_OBJCE_P(zval_p) Z_OBJCE(*(zval_p))
#define Z_OBJPROP(zval) Z_OBJ_HT((zval))->get_properties(Z_OBJ(zval))