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zend_operators.c
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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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <[email protected]> |
| Zeev Suraski <[email protected]> |
| Dmitry Stogov <[email protected]> |
+----------------------------------------------------------------------+
*/
#include <ctype.h>
#include "zend.h"
#include "zend_operators.h"
#include "zend_variables.h"
#include "zend_globals.h"
#include "zend_list.h"
#include "zend_API.h"
#include "zend_strtod.h"
#include "zend_exceptions.h"
#include "zend_closures.h"
#include <locale.h>
#ifdef HAVE_LANGINFO_H
# include <langinfo.h>
#endif
#ifdef ZEND_INTRIN_AVX2_NATIVE
#include <immintrin.h>
#endif
#ifdef __SSE2__
#include <emmintrin.h>
#endif
#if defined(ZEND_WIN32) && !defined(ZTS) && defined(_MSC_VER)
/* This performance improvement of tolower() on Windows gives 10-18% on bench.php */
#define ZEND_USE_TOLOWER_L 1
#endif
#ifdef ZEND_USE_TOLOWER_L
static _locale_t current_locale = NULL;
/* this is true global! may lead to strange effects on ZTS, but so may setlocale() */
#define zend_tolower(c) _tolower_l(c, current_locale)
#else
#define zend_tolower(c) tolower(c)
#endif
#define TYPE_PAIR(t1,t2) (((t1) << 4) | (t2))
#ifdef ZEND_INTRIN_AVX2_NATIVE
#define HAVE_BLOCKCONV
#define BLOCKCONV_INIT_RANGE(start, end) \
const __m256i blconv_offset = _mm256_set1_epi8((signed char)(SCHAR_MIN - start)); \
const __m256i blconv_threshold = _mm256_set1_epi8(SCHAR_MIN + (end - start) + 1);
#define BLOCKCONV_STRIDE sizeof(__m256i)
#define BLOCKCONV_INIT_DELTA(delta) \
const __m256i blconv_delta = _mm256_set1_epi8(delta);
#define BLOCKCONV_LOAD(input) \
__m256i blconv_operand = _mm256_loadu_si256((__m256i*)(input)); \
__m256i blconv_mask = _mm256_cmpgt_epi8(blconv_threshold, _mm256_add_epi8(blconv_operand, blconv_offset));
#define BLOCKCONV_FOUND() _mm256_movemask_epi8(blconv_mask)
#define BLOCKCONV_STORE(dest) \
__m256i blconv_add = _mm256_and_si256(blconv_mask, blconv_delta); \
__m256i blconv_result = _mm256_add_epi8(blconv_operand, blconv_add); \
_mm256_storeu_si256((__m256i*)(dest), blconv_result);
#elif __SSE2__
#define HAVE_BLOCKCONV
/* Common code for SSE2 accelerated character case conversion */
#define BLOCKCONV_INIT_RANGE(start, end) \
const __m128i blconv_offset = _mm_set1_epi8((signed char)(SCHAR_MIN - start)); \
const __m128i blconv_threshold = _mm_set1_epi8(SCHAR_MIN + (end - start) + 1);
#define BLOCKCONV_STRIDE sizeof(__m128i)
#define BLOCKCONV_INIT_DELTA(delta) \
const __m128i blconv_delta = _mm_set1_epi8(delta);
#define BLOCKCONV_LOAD(input) \
__m128i blconv_operand = _mm_loadu_si128((__m128i*)(input)); \
__m128i blconv_mask = _mm_cmplt_epi8(_mm_add_epi8(blconv_operand, blconv_offset), blconv_threshold);
#define BLOCKCONV_FOUND() _mm_movemask_epi8(blconv_mask)
#define BLOCKCONV_STORE(dest) \
__m128i blconv_add = _mm_and_si128(blconv_mask, blconv_delta); \
__m128i blconv_result = _mm_add_epi8(blconv_operand, blconv_add); \
_mm_storeu_si128((__m128i *)(dest), blconv_result);
#endif /* __SSE2__ */
ZEND_API const unsigned char zend_tolower_map[256] = {
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,
0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,
0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,
0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,
0x40,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x5b,0x5c,0x5d,0x5e,0x5f,
0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7f,
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,
0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,
0xb0,0xb1,0xb2,0xb3,0xb4,0xb5,0xb6,0xb7,0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0xbe,0xbf,
0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,
0xd0,0xd1,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,0xdb,0xdc,0xdd,0xde,0xdf,
0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xeb,0xec,0xed,0xee,0xef,
0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff
};
ZEND_API const unsigned char zend_toupper_map[256] = {
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,
0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,
0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,
0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,
0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,
0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f,
0x60,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,
0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5a,0x7b,0x7c,0x7d,0x7e,0x7f,
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,
0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,
0xb0,0xb1,0xb2,0xb3,0xb4,0xb5,0xb6,0xb7,0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0xbe,0xbf,
0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,
0xd0,0xd1,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,0xdb,0xdc,0xdd,0xde,0xdf,
0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xeb,0xec,0xed,0xee,0xef,
0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff
};
/**
* Functions using locale lowercase:
zend_binary_strncasecmp_l
zend_binary_strcasecmp_l
* Functions using ascii lowercase:
string_compare_function_ex
string_case_compare_function
zend_str_tolower_copy
zend_str_tolower_dup
zend_str_tolower
zend_binary_strcasecmp
zend_binary_strncasecmp
*/
static zend_long ZEND_FASTCALL zend_atol_internal(const char *str, size_t str_len) /* {{{ */
{
if (!str_len) {
str_len = strlen(str);
}
/* Perform following multiplications on unsigned to avoid overflow UB.
* For now overflow is silently ignored -- not clear what else can be
* done here, especially as the final result of this function may be
* used in an unsigned context (e.g. "memory_limit=3G", which overflows
* zend_long on 32-bit, but not size_t). */
zend_ulong retval = (zend_ulong) ZEND_STRTOL(str, NULL, 0);
if (str_len>0) {
switch (str[str_len-1]) {
case 'g':
case 'G':
retval *= 1024;
ZEND_FALLTHROUGH;
case 'm':
case 'M':
retval *= 1024;
ZEND_FALLTHROUGH;
case 'k':
case 'K':
retval *= 1024;
break;
}
}
return (zend_long) retval;
}
/* }}} */
ZEND_API zend_long ZEND_FASTCALL zend_atol(const char *str, size_t str_len)
{
return zend_atol_internal(str, str_len);
}
ZEND_API int ZEND_FASTCALL zend_atoi(const char *str, size_t str_len)
{
return (int) zend_atol_internal(str, str_len);
}
/* {{{ convert_object_to_type: dst will be either ctype or UNDEF */
#define convert_object_to_type(op, dst, ctype) \
ZVAL_UNDEF(dst); \
if (Z_OBJ_HT_P(op)->cast_object(Z_OBJ_P(op), dst, ctype) == FAILURE) { \
zend_error(E_WARNING, \
"Object of class %s could not be converted to %s", ZSTR_VAL(Z_OBJCE_P(op)->name),\
zend_get_type_by_const(ctype)); \
} \
/* }}} */
ZEND_API void ZEND_FASTCALL convert_scalar_to_number(zval *op) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
case IS_STRING:
{
zend_string *str;
str = Z_STR_P(op);
if ((Z_TYPE_INFO_P(op)=is_numeric_string(ZSTR_VAL(str), ZSTR_LEN(str), &Z_LVAL_P(op), &Z_DVAL_P(op), 1)) == 0) {
ZVAL_LONG(op, 0);
}
zend_string_release_ex(str, 0);
break;
}
case IS_NULL:
case IS_FALSE:
ZVAL_LONG(op, 0);
break;
case IS_TRUE:
ZVAL_LONG(op, 1);
break;
case IS_RESOURCE:
{
zend_long l = Z_RES_HANDLE_P(op);
zval_ptr_dtor(op);
ZVAL_LONG(op, l);
}
break;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, _IS_NUMBER);
zval_ptr_dtor(op);
if (Z_TYPE(dst) == IS_LONG || Z_TYPE(dst) == IS_DOUBLE) {
ZVAL_COPY_VALUE(op, &dst);
} else {
ZVAL_LONG(op, 1);
}
}
break;
}
}
/* }}} */
static zend_never_inline zval* ZEND_FASTCALL _zendi_convert_scalar_to_number_silent(zval *op, zval *holder) /* {{{ */
{
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
ZVAL_LONG(holder, 0);
return holder;
case IS_TRUE:
ZVAL_LONG(holder, 1);
return holder;
case IS_STRING:
if ((Z_TYPE_INFO_P(holder) = is_numeric_string(Z_STRVAL_P(op), Z_STRLEN_P(op), &Z_LVAL_P(holder), &Z_DVAL_P(holder), 1)) == 0) {
ZVAL_LONG(holder, 0);
}
return holder;
case IS_RESOURCE:
ZVAL_LONG(holder, Z_RES_HANDLE_P(op));
return holder;
case IS_OBJECT:
convert_object_to_type(op, holder, _IS_NUMBER);
if (UNEXPECTED(EG(exception)) ||
UNEXPECTED(Z_TYPE_P(holder) != IS_LONG && Z_TYPE_P(holder) != IS_DOUBLE)) {
ZVAL_LONG(holder, 1);
}
return holder;
case IS_LONG:
case IS_DOUBLE:
default:
return op;
}
}
/* }}} */
static zend_never_inline zend_result ZEND_FASTCALL _zendi_try_convert_scalar_to_number(zval *op, zval *holder) /* {{{ */
{
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
ZVAL_LONG(holder, 0);
return SUCCESS;
case IS_TRUE:
ZVAL_LONG(holder, 1);
return SUCCESS;
case IS_STRING:
{
bool trailing_data = false;
/* For BC reasons we allow errors so that we can warn on leading numeric string */
if (0 == (Z_TYPE_INFO_P(holder) = is_numeric_string_ex(Z_STRVAL_P(op), Z_STRLEN_P(op),
&Z_LVAL_P(holder), &Z_DVAL_P(holder), /* allow errors */ true, NULL, &trailing_data))) {
/* Will lead to invalid OP type error */
return FAILURE;
}
if (UNEXPECTED(trailing_data)) {
zend_error(E_WARNING, "A non-numeric value encountered");
if (UNEXPECTED(EG(exception))) {
return FAILURE;
}
}
return SUCCESS;
}
case IS_OBJECT:
if (Z_OBJ_HT_P(op)->cast_object(Z_OBJ_P(op), holder, _IS_NUMBER) == FAILURE
|| EG(exception)) {
return FAILURE;
}
ZEND_ASSERT(Z_TYPE_P(holder) == IS_LONG || Z_TYPE_P(holder) == IS_DOUBLE);
return SUCCESS;
case IS_RESOURCE:
case IS_ARRAY:
return FAILURE;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
static zend_always_inline zend_result zendi_try_convert_scalar_to_number(zval *op, zval *holder) /* {{{ */
{
if (Z_TYPE_P(op) == IS_LONG || Z_TYPE_P(op) == IS_DOUBLE) {
ZVAL_COPY_VALUE(holder, op);
return SUCCESS;
} else {
return _zendi_try_convert_scalar_to_number(op, holder);
}
}
/* }}} */
static zend_never_inline zend_long ZEND_FASTCALL zendi_try_get_long(zval *op, bool *failed) /* {{{ */
{
*failed = 0;
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
return 0;
case IS_TRUE:
return 1;
case IS_DOUBLE: {
double dval = Z_DVAL_P(op);
zend_long lval = zend_dval_to_lval(dval);
if (!zend_is_long_compatible(dval, lval)) {
zend_incompatible_double_to_long_error(dval);
if (UNEXPECTED(EG(exception))) {
*failed = 1;
}
}
return lval;
}
case IS_STRING:
{
uint8_t type;
zend_long lval;
double dval;
bool trailing_data = false;
/* For BC reasons we allow errors so that we can warn on leading numeric string */
type = is_numeric_string_ex(Z_STRVAL_P(op), Z_STRLEN_P(op), &lval, &dval,
/* allow errors */ true, NULL, &trailing_data);
if (type == 0) {
*failed = 1;
return 0;
}
if (UNEXPECTED(trailing_data)) {
zend_error(E_WARNING, "A non-numeric value encountered");
if (UNEXPECTED(EG(exception))) {
*failed = 1;
}
}
if (EXPECTED(type == IS_LONG)) {
return lval;
} else {
/* Previously we used strtol here, not is_numeric_string,
* and strtol gives you LONG_MAX/_MIN on overflow.
* We use use saturating conversion to emulate strtol()'s
* behaviour.
*/
lval = zend_dval_to_lval_cap(dval);
if (!zend_is_long_compatible(dval, lval)) {
zend_incompatible_string_to_long_error(Z_STR_P(op));
if (UNEXPECTED(EG(exception))) {
*failed = 1;
}
}
return lval;
}
}
case IS_OBJECT:
{
zval dst;
if (Z_OBJ_HT_P(op)->cast_object(Z_OBJ_P(op), &dst, IS_LONG) == FAILURE
|| EG(exception)) {
*failed = 1;
return 0;
}
ZEND_ASSERT(Z_TYPE(dst) == IS_LONG);
return Z_LVAL(dst);
}
case IS_RESOURCE:
case IS_ARRAY:
*failed = 1;
return 0;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
#define ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(opcode) \
if (UNEXPECTED(Z_TYPE_P(op1) == IS_OBJECT) \
&& UNEXPECTED(Z_OBJ_HANDLER_P(op1, do_operation))) { \
if (EXPECTED(SUCCESS == Z_OBJ_HANDLER_P(op1, do_operation)(opcode, result, op1, op2))) { \
return SUCCESS; \
} \
}
#define ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(opcode) \
if (UNEXPECTED(Z_TYPE_P(op2) == IS_OBJECT) \
&& UNEXPECTED(Z_OBJ_HANDLER_P(op2, do_operation)) \
&& EXPECTED(SUCCESS == Z_OBJ_HANDLER_P(op2, do_operation)(opcode, result, op1, op2))) { \
return SUCCESS; \
}
#define ZEND_TRY_BINARY_OBJECT_OPERATION(opcode) \
ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(opcode) \
else \
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(opcode)
#define ZEND_TRY_UNARY_OBJECT_OPERATION(opcode) \
if (UNEXPECTED(Z_TYPE_P(op1) == IS_OBJECT) \
&& UNEXPECTED(Z_OBJ_HANDLER_P(op1, do_operation)) \
&& EXPECTED(SUCCESS == Z_OBJ_HANDLER_P(op1, do_operation)(opcode, result, op1, NULL))) { \
return SUCCESS; \
}
#define convert_op1_op2_long(op1, op1_lval, op2, op2_lval, result, opcode, sigil) \
do { \
if (UNEXPECTED(Z_TYPE_P(op1) != IS_LONG)) { \
bool failed; \
if (Z_ISREF_P(op1)) { \
op1 = Z_REFVAL_P(op1); \
if (Z_TYPE_P(op1) == IS_LONG) { \
op1_lval = Z_LVAL_P(op1); \
break; \
} \
} \
ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(opcode); \
op1_lval = zendi_try_get_long(op1, &failed); \
if (UNEXPECTED(failed)) { \
zend_binop_error(sigil, op1, op2); \
if (result != op1) { \
ZVAL_UNDEF(result); \
} \
return FAILURE; \
} \
} else { \
op1_lval = Z_LVAL_P(op1); \
} \
} while (0); \
do { \
if (UNEXPECTED(Z_TYPE_P(op2) != IS_LONG)) { \
bool failed; \
if (Z_ISREF_P(op2)) { \
op2 = Z_REFVAL_P(op2); \
if (Z_TYPE_P(op2) == IS_LONG) { \
op2_lval = Z_LVAL_P(op2); \
break; \
} \
} \
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(opcode); \
op2_lval = zendi_try_get_long(op2, &failed); \
if (UNEXPECTED(failed)) { \
zend_binop_error(sigil, op1, op2); \
if (result != op1) { \
ZVAL_UNDEF(result); \
} \
return FAILURE; \
} \
} else { \
op2_lval = Z_LVAL_P(op2); \
} \
} while (0);
ZEND_API void ZEND_FASTCALL convert_to_long(zval *op) /* {{{ */
{
zend_long tmp;
try_again:
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
ZVAL_LONG(op, 0);
break;
case IS_TRUE:
ZVAL_LONG(op, 1);
break;
case IS_RESOURCE:
tmp = Z_RES_HANDLE_P(op);
zval_ptr_dtor(op);
ZVAL_LONG(op, tmp);
break;
case IS_LONG:
break;
case IS_DOUBLE:
ZVAL_LONG(op, zend_dval_to_lval(Z_DVAL_P(op)));
break;
case IS_STRING:
{
zend_string *str = Z_STR_P(op);
ZVAL_LONG(op, zval_get_long(op));
zend_string_release_ex(str, 0);
}
break;
case IS_ARRAY:
tmp = (zend_hash_num_elements(Z_ARRVAL_P(op))?1:0);
zval_ptr_dtor(op);
ZVAL_LONG(op, tmp);
break;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, IS_LONG);
zval_ptr_dtor(op);
if (Z_TYPE(dst) == IS_LONG) {
ZVAL_LONG(op, Z_LVAL(dst));
} else {
ZVAL_LONG(op, 1);
}
return;
}
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_to_double(zval *op) /* {{{ */
{
double tmp;
try_again:
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
ZVAL_DOUBLE(op, 0.0);
break;
case IS_TRUE:
ZVAL_DOUBLE(op, 1.0);
break;
case IS_RESOURCE: {
double d = (double) Z_RES_HANDLE_P(op);
zval_ptr_dtor(op);
ZVAL_DOUBLE(op, d);
}
break;
case IS_LONG:
ZVAL_DOUBLE(op, (double) Z_LVAL_P(op));
break;
case IS_DOUBLE:
break;
case IS_STRING:
{
zend_string *str = Z_STR_P(op);
ZVAL_DOUBLE(op, zend_strtod(ZSTR_VAL(str), NULL));
zend_string_release_ex(str, 0);
}
break;
case IS_ARRAY:
tmp = (zend_hash_num_elements(Z_ARRVAL_P(op))?1:0);
zval_ptr_dtor(op);
ZVAL_DOUBLE(op, tmp);
break;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, IS_DOUBLE);
zval_ptr_dtor(op);
if (Z_TYPE(dst) == IS_DOUBLE) {
ZVAL_DOUBLE(op, Z_DVAL(dst));
} else {
ZVAL_DOUBLE(op, 1.0);
}
break;
}
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_to_null(zval *op) /* {{{ */
{
zval_ptr_dtor(op);
ZVAL_NULL(op);
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_to_boolean(zval *op) /* {{{ */
{
bool tmp;
try_again:
switch (Z_TYPE_P(op)) {
case IS_FALSE:
case IS_TRUE:
break;
case IS_NULL:
ZVAL_FALSE(op);
break;
case IS_RESOURCE: {
zend_long l = (Z_RES_HANDLE_P(op) ? 1 : 0);
zval_ptr_dtor(op);
ZVAL_BOOL(op, l);
}
break;
case IS_LONG:
ZVAL_BOOL(op, Z_LVAL_P(op) ? 1 : 0);
break;
case IS_DOUBLE:
ZVAL_BOOL(op, Z_DVAL_P(op) ? 1 : 0);
break;
case IS_STRING:
{
zend_string *str = Z_STR_P(op);
if (ZSTR_LEN(str) == 0
|| (ZSTR_LEN(str) == 1 && ZSTR_VAL(str)[0] == '0')) {
ZVAL_FALSE(op);
} else {
ZVAL_TRUE(op);
}
zend_string_release_ex(str, 0);
}
break;
case IS_ARRAY:
tmp = (zend_hash_num_elements(Z_ARRVAL_P(op))?1:0);
zval_ptr_dtor(op);
ZVAL_BOOL(op, tmp);
break;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, _IS_BOOL);
zval_ptr_dtor(op);
if (Z_TYPE_INFO(dst) == IS_FALSE || Z_TYPE_INFO(dst) == IS_TRUE) {
Z_TYPE_INFO_P(op) = Z_TYPE_INFO(dst);
} else {
ZVAL_TRUE(op);
}
break;
}
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API void ZEND_FASTCALL _convert_to_string(zval *op) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_UNDEF:
case IS_NULL:
case IS_FALSE: {
ZVAL_EMPTY_STRING(op);
break;
}
case IS_TRUE:
ZVAL_CHAR(op, '1');
break;
case IS_STRING:
break;
case IS_RESOURCE: {
zend_string *str = zend_strpprintf(0, "Resource id #" ZEND_LONG_FMT, (zend_long)Z_RES_HANDLE_P(op));
zval_ptr_dtor(op);
ZVAL_NEW_STR(op, str);
break;
}
case IS_LONG:
ZVAL_STR(op, zend_long_to_str(Z_LVAL_P(op)));
break;
case IS_DOUBLE:
ZVAL_NEW_STR(op, zend_double_to_str(Z_DVAL_P(op)));
break;
case IS_ARRAY:
zend_error(E_WARNING, "Array to string conversion");
zval_ptr_dtor(op);
ZVAL_INTERNED_STR(op, ZSTR_KNOWN(ZEND_STR_ARRAY_CAPITALIZED));
break;
case IS_OBJECT: {
zval tmp;
if (Z_OBJ_HT_P(op)->cast_object(Z_OBJ_P(op), &tmp, IS_STRING) == SUCCESS) {
zval_ptr_dtor(op);
ZVAL_COPY_VALUE(op, &tmp);
return;
}
if (!EG(exception)) {
zend_throw_error(NULL, "Object of class %s could not be converted to string", ZSTR_VAL(Z_OBJCE_P(op)->name));
}
zval_ptr_dtor(op);
ZVAL_EMPTY_STRING(op);
break;
}
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API bool ZEND_FASTCALL _try_convert_to_string(zval *op) /* {{{ */
{
zend_string *str;
ZEND_ASSERT(Z_TYPE_P(op) != IS_STRING);
str = zval_try_get_string_func(op);
if (UNEXPECTED(!str)) {
return 0;
}
zval_ptr_dtor(op);
ZVAL_STR(op, str);
return 1;
}
/* }}} */
static void convert_scalar_to_array(zval *op) /* {{{ */
{
HashTable *ht = zend_new_array(1);
zend_hash_index_add_new(ht, 0, op);
ZVAL_ARR(op, ht);
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_to_array(zval *op) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_ARRAY:
break;
/* OBJECTS_OPTIMIZE */
case IS_OBJECT:
if (Z_OBJCE_P(op) == zend_ce_closure) {
convert_scalar_to_array(op);
} else if (Z_OBJ_P(op)->properties == NULL
&& Z_OBJ_HT_P(op)->get_properties_for == NULL
&& Z_OBJ_HT_P(op)->get_properties == zend_std_get_properties) {
/* Optimized version without rebuilding properties HashTable */
HashTable *ht = zend_std_build_object_properties_array(Z_OBJ_P(op));
OBJ_RELEASE(Z_OBJ_P(op));
ZVAL_ARR(op, ht);
} else {
HashTable *obj_ht = zend_get_properties_for(op, ZEND_PROP_PURPOSE_ARRAY_CAST);
if (obj_ht) {
HashTable *new_obj_ht = zend_proptable_to_symtable(obj_ht,
(Z_OBJCE_P(op)->default_properties_count ||
Z_OBJ_P(op)->handlers != &std_object_handlers ||
GC_IS_RECURSIVE(obj_ht)));
zval_ptr_dtor(op);
ZVAL_ARR(op, new_obj_ht);
zend_release_properties(obj_ht);
} else {
zval_ptr_dtor(op);
/*ZVAL_EMPTY_ARRAY(op);*/
array_init(op);
}
}
break;
case IS_NULL:
/*ZVAL_EMPTY_ARRAY(op);*/
array_init(op);
break;
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
default:
convert_scalar_to_array(op);
break;
}
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_to_object(zval *op) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_ARRAY:
{
HashTable *ht = zend_symtable_to_proptable(Z_ARR_P(op));
zend_object *obj;
if (GC_FLAGS(ht) & IS_ARRAY_IMMUTABLE) {
/* TODO: try not to duplicate immutable arrays as well ??? */
ht = zend_array_dup(ht);
} else if (ht != Z_ARR_P(op)) {
zval_ptr_dtor(op);
} else {
GC_DELREF(ht);
}
obj = zend_objects_new(zend_standard_class_def);
obj->properties = ht;
ZVAL_OBJ(op, obj);
break;
}
case IS_OBJECT:
break;
case IS_NULL:
object_init(op);
break;
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
default: {
zval tmp;
ZVAL_COPY_VALUE(&tmp, op);
object_init(op);
zend_hash_add_new(Z_OBJPROP_P(op), ZSTR_KNOWN(ZEND_STR_SCALAR), &tmp);
break;
}
}
}
/* }}} */
ZEND_API void ZEND_COLD zend_incompatible_double_to_long_error(double d)
{
zend_error_unchecked(E_DEPRECATED, "Implicit conversion from float %.*H to int loses precision", -1, d);
}
ZEND_API void ZEND_COLD zend_incompatible_string_to_long_error(const zend_string *s)
{
zend_error(E_DEPRECATED, "Implicit conversion from float-string \"%s\" to int loses precision", ZSTR_VAL(s));
}
ZEND_API zend_long ZEND_FASTCALL zval_get_long_func(const zval *op, bool is_strict) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_UNDEF:
case IS_NULL:
case IS_FALSE:
return 0;
case IS_TRUE:
return 1;
case IS_RESOURCE:
return Z_RES_HANDLE_P(op);
case IS_LONG:
return Z_LVAL_P(op);
case IS_DOUBLE: {
double dval = Z_DVAL_P(op);
zend_long lval = zend_dval_to_lval(dval);
if (UNEXPECTED(is_strict)) {
if (!zend_is_long_compatible(dval, lval)) {
zend_incompatible_double_to_long_error(dval);
}
}
return lval;
}
case IS_STRING:
{
uint8_t type;
zend_long lval;
double dval;
if (0 == (type = is_numeric_string(Z_STRVAL_P(op), Z_STRLEN_P(op), &lval, &dval, true))) {
return 0;
} else if (EXPECTED(type == IS_LONG)) {
return lval;
} else {
/* Previously we used strtol here, not is_numeric_string,
* and strtol gives you LONG_MAX/_MIN on overflow.
* We use saturating conversion to emulate strtol()'s
* behaviour.
*/
/* Most usages are expected to not be (int) casts */
lval = zend_dval_to_lval_cap(dval);
if (UNEXPECTED(is_strict)) {
if (!zend_is_long_compatible(dval, lval)) {
zend_incompatible_string_to_long_error(Z_STR_P(op));
}
}
return lval;
}
}
case IS_ARRAY:
return zend_hash_num_elements(Z_ARRVAL_P(op)) ? 1 : 0;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, IS_LONG);
if (Z_TYPE(dst) == IS_LONG) {
return Z_LVAL(dst);
} else {
return 1;
}
}
case IS_REFERENCE:
op = Z_REFVAL_P(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
return 0;
}
/* }}} */
ZEND_API double ZEND_FASTCALL zval_get_double_func(const zval *op) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
return 0.0;
case IS_TRUE:
return 1.0;
case IS_RESOURCE:
return (double) Z_RES_HANDLE_P(op);
case IS_LONG:
return (double) Z_LVAL_P(op);
case IS_DOUBLE:
return Z_DVAL_P(op);
case IS_STRING:
return zend_strtod(Z_STRVAL_P(op), NULL);
case IS_ARRAY:
return zend_hash_num_elements(Z_ARRVAL_P(op)) ? 1.0 : 0.0;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, IS_DOUBLE);
if (Z_TYPE(dst) == IS_DOUBLE) {
return Z_DVAL(dst);
} else {
return 1.0;
}
}
case IS_REFERENCE:
op = Z_REFVAL_P(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
return 0.0;
}
/* }}} */
static zend_always_inline zend_string* __zval_get_string_func(zval *op, bool try) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_UNDEF:
case IS_NULL:
case IS_FALSE:
return ZSTR_EMPTY_ALLOC();
case IS_TRUE:
return ZSTR_CHAR('1');
case IS_RESOURCE:
return zend_strpprintf(0, "Resource id #" ZEND_LONG_FMT, (zend_long)Z_RES_HANDLE_P(op));
case IS_LONG:
return zend_long_to_str(Z_LVAL_P(op));
case IS_DOUBLE:
return zend_double_to_str(Z_DVAL_P(op));
case IS_ARRAY:
zend_error(E_WARNING, "Array to string conversion");
return (try && UNEXPECTED(EG(exception))) ?
NULL : ZSTR_KNOWN(ZEND_STR_ARRAY_CAPITALIZED);
case IS_OBJECT: {
zval tmp;
if (Z_OBJ_HT_P(op)->cast_object(Z_OBJ_P(op), &tmp, IS_STRING) == SUCCESS) {
return Z_STR(tmp);