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Merged
merged 2 commits into from
Aug 5, 2025
Merged

ext/json: Various refactorings #18427

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d8e13ee
ext/json: Various small refactorings
Girgias Apr 25, 2025
cbeb323
ext/json: Refactor php_json_encode_array()
Girgias Apr 26, 2025
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46 changes: 15 additions & 31 deletions ext/json/json_encoder.c
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Original file line number Diff line number Diff line change
Expand Up @@ -41,18 +41,6 @@ static zend_always_inline bool php_json_check_stack_limit(void)
#endif
}

static int php_json_determine_array_type(zval *val) /* {{{ */
{
zend_array *myht = Z_ARRVAL_P(val);

if (myht) {
return zend_array_is_list(myht) ? PHP_JSON_OUTPUT_ARRAY : PHP_JSON_OUTPUT_OBJECT;
}

return PHP_JSON_OUTPUT_ARRAY;
}
/* }}} */

/* {{{ Pretty printing support functions */

static inline void php_json_pretty_print_char(smart_str *buf, int options, char c) /* {{{ */
Expand All @@ -63,12 +51,10 @@ static inline void php_json_pretty_print_char(smart_str *buf, int options, char
}
/* }}} */

static inline void php_json_pretty_print_indent(smart_str *buf, int options, php_json_encoder *encoder) /* {{{ */
static inline void php_json_pretty_print_indent(smart_str *buf, int options, const php_json_encoder *encoder) /* {{{ */
{
int i;

if (options & PHP_JSON_PRETTY_PRINT) {
for (i = 0; i < encoder->depth; ++i) {
for (int i = 0; i < encoder->depth; ++i) {
smart_str_appendl(buf, " ", 4);
}
}
Expand Down Expand Up @@ -122,7 +108,8 @@ static inline void php_json_encode_double(smart_str *buf, double d, int options)

static zend_result php_json_encode_array(smart_str *buf, zval *val, int options, php_json_encoder *encoder) /* {{{ */
{
int r, need_comma = 0;
bool encode_as_object = options & PHP_JSON_FORCE_OBJECT;
bool need_comma = false;
HashTable *myht, *prop_ht;
zend_refcounted *recursion_rc;

Expand All @@ -138,17 +125,15 @@ static zend_result php_json_encode_array(smart_str *buf, zval *val, int options,
myht = Z_ARRVAL_P(val);
recursion_rc = (zend_refcounted *)myht;
prop_ht = NULL;
r = (options & PHP_JSON_FORCE_OBJECT) ? PHP_JSON_OUTPUT_OBJECT : php_json_determine_array_type(val);
encode_as_object = encode_as_object || !zend_array_is_list(myht);
} else if (Z_OBJ_P(val)->properties == NULL
&& Z_OBJ_HT_P(val)->get_properties_for == NULL
&& Z_OBJ_HT_P(val)->get_properties == zend_std_get_properties
&& Z_OBJ_P(val)->ce->num_hooked_props == 0
&& !zend_object_is_lazy(Z_OBJ_P(val))) {
/* Optimized version without rebuilding properties HashTable */
zend_object *obj = Z_OBJ_P(val);
zend_class_entry *ce = obj->ce;
zend_property_info *prop_info;
zval *prop;
const zend_class_entry *ce = obj->ce;

if (GC_IS_RECURSIVE(obj)) {
encoder->error_code = PHP_JSON_ERROR_RECURSION;
Expand All @@ -163,15 +148,15 @@ static zend_result php_json_encode_array(smart_str *buf, zval *val, int options,
++encoder->depth;

for (int i = 0; i < ce->default_properties_count; i++) {
prop_info = ce->properties_info_table[i];
zend_property_info *prop_info = ce->properties_info_table[i];
if (!prop_info) {
continue;
}
if (ZSTR_VAL(prop_info->name)[0] == '\0' && ZSTR_LEN(prop_info->name) > 0) {
/* Skip protected and private members. */
continue;
}
prop = OBJ_PROP(obj, prop_info->offset);
zval *prop = OBJ_PROP(obj, prop_info->offset);
if (Z_TYPE_P(prop) == IS_UNDEF) {
continue;
}
Expand Down Expand Up @@ -228,7 +213,7 @@ static zend_result php_json_encode_array(smart_str *buf, zval *val, int options,
* referenced from a different place in the object graph. */
recursion_rc = (zend_refcounted *)obj;
}
r = PHP_JSON_OUTPUT_OBJECT;
encode_as_object = true;
}

if (recursion_rc && GC_IS_RECURSIVE(recursion_rc)) {
Expand All @@ -240,7 +225,7 @@ static zend_result php_json_encode_array(smart_str *buf, zval *val, int options,

PHP_JSON_HASH_PROTECT_RECURSION(recursion_rc);

if (r == PHP_JSON_OUTPUT_ARRAY) {
if (!encode_as_object) {
smart_str_appendc(buf, '[');
} else {
smart_str_appendc(buf, '{');
Expand All @@ -259,7 +244,7 @@ static zend_result php_json_encode_array(smart_str *buf, zval *val, int options,
zval tmp;
ZVAL_UNDEF(&tmp);

if (r == PHP_JSON_OUTPUT_ARRAY) {
if (!encode_as_object) {
ZEND_ASSERT(Z_TYPE_P(data) != IS_PTR);

if (need_comma) {
Expand All @@ -270,7 +255,7 @@ static zend_result php_json_encode_array(smart_str *buf, zval *val, int options,

php_json_pretty_print_char(buf, options, '\n');
php_json_pretty_print_indent(buf, options, encoder);
} else if (r == PHP_JSON_OUTPUT_OBJECT) {
} else {
if (key) {
if (ZSTR_VAL(key)[0] == '\0' && ZSTR_LEN(key) > 0 && Z_TYPE_P(val) == IS_OBJECT) {
/* Skip protected and private members. */
Expand Down Expand Up @@ -354,7 +339,7 @@ static zend_result php_json_encode_array(smart_str *buf, zval *val, int options,
php_json_pretty_print_indent(buf, options, encoder);
}

if (r == PHP_JSON_OUTPUT_ARRAY) {
if (!encode_as_object) {
smart_str_appendc(buf, ']');
} else {
smart_str_appendc(buf, '}');
Expand All @@ -369,7 +354,6 @@ zend_result php_json_escape_string(
smart_str *buf, const char *s, size_t len,
int options, php_json_encoder *encoder) /* {{{ */
{
unsigned int us;
size_t pos, checkpoint;
char *dst;

Expand Down Expand Up @@ -407,7 +391,7 @@ zend_result php_json_escape_string(
0xffffffff, 0x500080c4, 0x10000000, 0x00000000,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff};

us = (unsigned char)s[pos];
unsigned int us = (unsigned char)s[pos];
if (EXPECTED(!ZEND_BIT_TEST(charmap, us))) {
pos++;
len--;
Expand Down Expand Up @@ -626,7 +610,7 @@ static zend_result php_json_encode_serializable_object(smart_str *buf, zend_obje

static zend_result php_json_encode_serializable_enum(smart_str *buf, zval *val, int options, php_json_encoder *encoder)
{
zend_class_entry *ce = Z_OBJCE_P(val);
const zend_class_entry *ce = Z_OBJCE_P(val);
if (ce->enum_backing_type == IS_UNDEF) {
encoder->error_code = PHP_JSON_ERROR_NON_BACKED_ENUM;
smart_str_appendc(buf, '0');
Expand Down
4 changes: 0 additions & 4 deletions ext/json/php_json.h
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Original file line number Diff line number Diff line change
Expand Up @@ -79,10 +79,6 @@ typedef enum {
#define PHP_JSON_INVALID_UTF8_SUBSTITUTE (1<<21)
#define PHP_JSON_THROW_ON_ERROR (1<<22)

/* Internal flags */
#define PHP_JSON_OUTPUT_ARRAY 0
#define PHP_JSON_OUTPUT_OBJECT 1

/* default depth */
#define PHP_JSON_PARSER_DEFAULT_DEPTH 512

Expand Down