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php_reflection.c
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/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Timm Friebe <thekid@thekid.de> |
| George Schlossnagle <george@omniti.com> |
| Andrei Zmievski <andrei@gravitonic.com> |
| Marcus Boerger <helly@php.net> |
| Johannes Schlueter <johannes@php.net> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "php_reflection.h"
#include "ext/standard/info.h"
#include "ext/standard/sha1.h"
#include "ext/random/php_random.h"
#include "zend.h"
#include "zend_API.h"
#include "zend_ast.h"
#include "zend_attributes.h"
#include "zend_exceptions.h"
#include "zend_operators.h"
#include "zend_constants.h"
#include "zend_ini.h"
#include "zend_interfaces.h"
#include "zend_closures.h"
#include "zend_generators.h"
#include "zend_extensions.h"
#include "zend_builtin_functions.h"
#include "zend_smart_str.h"
#include "zend_enum.h"
#include "zend_fibers.h"
#define REFLECTION_ATTRIBUTE_IS_INSTANCEOF (1 << 1)
#include "php_reflection_arginfo.h"
/* Key used to avoid leaking addresses in ReflectionProperty::getId() */
#define REFLECTION_KEY_LEN 16
ZEND_BEGIN_MODULE_GLOBALS(reflection)
bool key_initialized;
unsigned char key[REFLECTION_KEY_LEN];
ZEND_END_MODULE_GLOBALS(reflection)
ZEND_DECLARE_MODULE_GLOBALS(reflection)
#define REFLECTION_G(v) ZEND_MODULE_GLOBALS_ACCESSOR(reflection, v)
static zend_always_inline zval *reflection_prop_name(zval *object) {
/* $name is always in the first property slot. */
ZEND_ASSERT(Z_OBJCE_P(object)->default_properties_count >= 1);
return &Z_OBJ_P(object)->properties_table[0];
}
static zend_always_inline zval *reflection_prop_class(zval *object) {
/* $class is always in the second property slot. */
ZEND_ASSERT(Z_OBJCE_P(object)->default_properties_count >= 2);
return &Z_OBJ_P(object)->properties_table[1];
}
/* Class entry pointers */
PHPAPI zend_class_entry *reflector_ptr;
PHPAPI zend_class_entry *reflection_exception_ptr;
PHPAPI zend_class_entry *reflection_ptr;
PHPAPI zend_class_entry *reflection_function_abstract_ptr;
PHPAPI zend_class_entry *reflection_function_ptr;
PHPAPI zend_class_entry *reflection_generator_ptr;
PHPAPI zend_class_entry *reflection_parameter_ptr;
PHPAPI zend_class_entry *reflection_type_ptr;
PHPAPI zend_class_entry *reflection_named_type_ptr;
PHPAPI zend_class_entry *reflection_intersection_type_ptr;
PHPAPI zend_class_entry *reflection_union_type_ptr;
PHPAPI zend_class_entry *reflection_class_ptr;
PHPAPI zend_class_entry *reflection_object_ptr;
PHPAPI zend_class_entry *reflection_method_ptr;
PHPAPI zend_class_entry *reflection_property_ptr;
PHPAPI zend_class_entry *reflection_class_constant_ptr;
PHPAPI zend_class_entry *reflection_extension_ptr;
PHPAPI zend_class_entry *reflection_zend_extension_ptr;
PHPAPI zend_class_entry *reflection_reference_ptr;
PHPAPI zend_class_entry *reflection_attribute_ptr;
PHPAPI zend_class_entry *reflection_enum_ptr;
PHPAPI zend_class_entry *reflection_enum_unit_case_ptr;
PHPAPI zend_class_entry *reflection_enum_backed_case_ptr;
PHPAPI zend_class_entry *reflection_fiber_ptr;
/* Exception throwing macro */
#define _DO_THROW(msg) \
zend_throw_exception(reflection_exception_ptr, msg, 0);
#define GET_REFLECTION_OBJECT() do { \
intern = Z_REFLECTION_P(ZEND_THIS); \
if (intern->ptr == NULL) { \
if (EG(exception) && EG(exception)->ce == reflection_exception_ptr) { \
RETURN_THROWS(); \
} \
zend_throw_error(NULL, "Internal error: Failed to retrieve the reflection object"); \
RETURN_THROWS(); \
} \
} while (0)
#define GET_REFLECTION_OBJECT_PTR(target) do { \
GET_REFLECTION_OBJECT(); \
target = intern->ptr; \
} while (0)
/* {{{ Object structure */
/* Struct for properties */
typedef struct _property_reference {
zend_property_info *prop;
zend_string *unmangled_name;
} property_reference;
/* Struct for parameters */
typedef struct _parameter_reference {
uint32_t offset;
bool required;
struct _zend_arg_info *arg_info;
zend_function *fptr;
} parameter_reference;
/* Struct for type hints */
typedef struct _type_reference {
zend_type type;
/* Whether to use backwards compatible null representation */
bool legacy_behavior;
} type_reference;
/* Struct for attributes */
typedef struct _attribute_reference {
HashTable *attributes;
zend_attribute *data;
zend_class_entry *scope;
zend_string *filename;
uint32_t target;
} attribute_reference;
typedef enum {
REF_TYPE_OTHER, /* Must be 0 */
REF_TYPE_FUNCTION,
REF_TYPE_GENERATOR,
REF_TYPE_FIBER,
REF_TYPE_PARAMETER,
REF_TYPE_TYPE,
REF_TYPE_PROPERTY,
REF_TYPE_CLASS_CONSTANT,
REF_TYPE_ATTRIBUTE
} reflection_type_t;
/* Struct for reflection objects */
typedef struct {
zval obj;
void *ptr;
zend_class_entry *ce;
reflection_type_t ref_type;
zend_object zo;
} reflection_object;
static inline reflection_object *reflection_object_from_obj(zend_object *obj) {
return (reflection_object*)((char*)(obj) - XtOffsetOf(reflection_object, zo));
}
#define Z_REFLECTION_P(zv) reflection_object_from_obj(Z_OBJ_P((zv)))
/* }}} */
static zend_object_handlers reflection_object_handlers;
static zend_always_inline uint32_t prop_get_flags(property_reference *ref) {
return ref->prop ? ref->prop->flags : ZEND_ACC_PUBLIC;
}
static inline bool is_closure_invoke(zend_class_entry *ce, zend_string *lcname) {
return ce == zend_ce_closure
&& zend_string_equals_literal(lcname, ZEND_INVOKE_FUNC_NAME);
}
static zend_function *_copy_function(zend_function *fptr) /* {{{ */
{
if (fptr
&& (fptr->internal_function.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE))
{
zend_function *copy_fptr;
copy_fptr = emalloc(sizeof(zend_function));
memcpy(copy_fptr, fptr, sizeof(zend_function));
copy_fptr->internal_function.function_name = zend_string_copy(fptr->internal_function.function_name);
return copy_fptr;
} else {
/* no copy needed */
return fptr;
}
}
/* }}} */
static void _free_function(zend_function *fptr) /* {{{ */
{
if (fptr
&& (fptr->internal_function.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE))
{
zend_string_release_ex(fptr->internal_function.function_name, 0);
zend_free_trampoline(fptr);
}
}
/* }}} */
static void reflection_free_property_reference(property_reference *reference)
{
zend_string_release_ex(reference->unmangled_name, 0);
efree(reference);
}
static void reflection_free_parameter_reference(parameter_reference *reference)
{
_free_function(reference->fptr);
efree(reference);
}
static void reflection_free_objects_storage(zend_object *object) /* {{{ */
{
reflection_object *intern = reflection_object_from_obj(object);
if (intern->ptr) {
switch (intern->ref_type) {
case REF_TYPE_PARAMETER:
reflection_free_parameter_reference(intern->ptr);
break;
case REF_TYPE_TYPE:
{
type_reference *type_ref = intern->ptr;
if (ZEND_TYPE_HAS_NAME(type_ref->type)) {
zend_string_release(ZEND_TYPE_NAME(type_ref->type));
}
efree(type_ref);
break;
}
case REF_TYPE_FUNCTION:
_free_function(intern->ptr);
break;
case REF_TYPE_PROPERTY:
reflection_free_property_reference(intern->ptr);
break;
case REF_TYPE_ATTRIBUTE: {
attribute_reference *attr_ref = intern->ptr;
if (attr_ref->filename) {
zend_string_release(attr_ref->filename);
}
efree(intern->ptr);
break;
}
case REF_TYPE_GENERATOR:
case REF_TYPE_FIBER:
case REF_TYPE_CLASS_CONSTANT:
case REF_TYPE_OTHER:
break;
}
}
intern->ptr = NULL;
zval_ptr_dtor(&intern->obj);
zend_object_std_dtor(object);
}
/* }}} */
static HashTable *reflection_get_gc(zend_object *obj, zval **gc_data, int *gc_data_count) /* {{{ */
{
reflection_object *intern = reflection_object_from_obj(obj);
*gc_data = &intern->obj;
*gc_data_count = 1;
return zend_std_get_properties(obj);
}
/* }}} */
static zend_object *reflection_objects_new(zend_class_entry *class_type) /* {{{ */
{
reflection_object *intern = zend_object_alloc(sizeof(reflection_object), class_type);
zend_object_std_init(&intern->zo, class_type);
object_properties_init(&intern->zo, class_type);
return &intern->zo;
}
/* }}} */
static zval *reflection_instantiate(zend_class_entry *pce, zval *object) /* {{{ */
{
object_init_ex(object, pce);
return object;
}
/* }}} */
static void _const_string(smart_str *str, char *name, zval *value, char *indent);
static void _function_string(smart_str *str, zend_function *fptr, zend_class_entry *scope, char* indent);
static void _property_string(smart_str *str, zend_property_info *prop, const char *prop_name, char* indent);
static void _class_const_string(smart_str *str, zend_string *name, zend_class_constant *c, char* indent);
static void _class_string(smart_str *str, zend_class_entry *ce, zval *obj, char *indent);
static void _extension_string(smart_str *str, zend_module_entry *module, char *indent);
static void _zend_extension_string(smart_str *str, zend_extension *extension, char *indent);
/* {{{ _class_string */
static void _class_string(smart_str *str, zend_class_entry *ce, zval *obj, char *indent)
{
int count, count_static_props = 0, count_static_funcs = 0, count_shadow_props = 0;
zend_string *sub_indent = strpprintf(0, "%s ", indent);
/* TBD: Repair indenting of doc comment (or is this to be done in the parser?) */
if (ce->type == ZEND_USER_CLASS && ce->info.user.doc_comment) {
smart_str_append_printf(str, "%s%s", indent, ZSTR_VAL(ce->info.user.doc_comment));
smart_str_appendc(str, '\n');
}
if (obj && Z_TYPE_P(obj) == IS_OBJECT) {
smart_str_append_printf(str, "%sObject of class [ ", indent);
} else {
char *kind = "Class";
if (ce->ce_flags & ZEND_ACC_INTERFACE) {
kind = "Interface";
} else if (ce->ce_flags & ZEND_ACC_TRAIT) {
kind = "Trait";
}
smart_str_append_printf(str, "%s%s [ ", indent, kind);
}
smart_str_append_printf(str, (ce->type == ZEND_USER_CLASS) ? "<user" : "<internal");
if (ce->type == ZEND_INTERNAL_CLASS && ce->info.internal.module) {
smart_str_append_printf(str, ":%s", ce->info.internal.module->name);
}
smart_str_append_printf(str, "> ");
if (ce->get_iterator != NULL) {
smart_str_append_printf(str, "<iterateable> ");
}
if (ce->ce_flags & ZEND_ACC_INTERFACE) {
smart_str_append_printf(str, "interface ");
} else if (ce->ce_flags & ZEND_ACC_TRAIT) {
smart_str_append_printf(str, "trait ");
} else {
if (ce->ce_flags & (ZEND_ACC_IMPLICIT_ABSTRACT_CLASS|ZEND_ACC_EXPLICIT_ABSTRACT_CLASS)) {
smart_str_append_printf(str, "abstract ");
}
if (ce->ce_flags & ZEND_ACC_FINAL) {
smart_str_append_printf(str, "final ");
}
if (ce->ce_flags & ZEND_ACC_READONLY_CLASS) {
smart_str_append_printf(str, "readonly ");
}
smart_str_append_printf(str, "class ");
}
smart_str_append_printf(str, "%s", ZSTR_VAL(ce->name));
if (ce->parent) {
smart_str_append_printf(str, " extends %s", ZSTR_VAL(ce->parent->name));
}
if (ce->num_interfaces) {
uint32_t i;
ZEND_ASSERT(ce->ce_flags & ZEND_ACC_LINKED);
if (ce->ce_flags & ZEND_ACC_INTERFACE) {
smart_str_append_printf(str, " extends %s", ZSTR_VAL(ce->interfaces[0]->name));
} else {
smart_str_append_printf(str, " implements %s", ZSTR_VAL(ce->interfaces[0]->name));
}
for (i = 1; i < ce->num_interfaces; ++i) {
smart_str_append_printf(str, ", %s", ZSTR_VAL(ce->interfaces[i]->name));
}
}
smart_str_append_printf(str, " ] {\n");
/* The information where a class is declared is only available for user classes */
if (ce->type == ZEND_USER_CLASS) {
smart_str_append_printf(str, "%s @@ %s %d-%d\n", indent, ZSTR_VAL(ce->info.user.filename),
ce->info.user.line_start, ce->info.user.line_end);
}
/* Constants */
smart_str_append_printf(str, "\n");
count = zend_hash_num_elements(&ce->constants_table);
smart_str_append_printf(str, "%s - Constants [%d] {\n", indent, count);
if (count > 0) {
zend_string *key;
zend_class_constant *c;
ZEND_HASH_MAP_FOREACH_STR_KEY_PTR(CE_CONSTANTS_TABLE(ce), key, c) {
_class_const_string(str, key, c, ZSTR_VAL(sub_indent));
if (UNEXPECTED(EG(exception))) {
zend_string_release(sub_indent);
return;
}
} ZEND_HASH_FOREACH_END();
}
smart_str_append_printf(str, "%s }\n", indent);
/* Static properties */
/* counting static properties */
count = zend_hash_num_elements(&ce->properties_info);
if (count > 0) {
zend_property_info *prop;
ZEND_HASH_MAP_FOREACH_PTR(&ce->properties_info, prop) {
if ((prop->flags & ZEND_ACC_PRIVATE) && prop->ce != ce) {
count_shadow_props++;
} else if (prop->flags & ZEND_ACC_STATIC) {
count_static_props++;
}
} ZEND_HASH_FOREACH_END();
}
/* static properties */
smart_str_append_printf(str, "\n%s - Static properties [%d] {\n", indent, count_static_props);
if (count_static_props > 0) {
zend_property_info *prop;
ZEND_HASH_MAP_FOREACH_PTR(&ce->properties_info, prop) {
if ((prop->flags & ZEND_ACC_STATIC) && (!(prop->flags & ZEND_ACC_PRIVATE) || prop->ce == ce)) {
_property_string(str, prop, NULL, ZSTR_VAL(sub_indent));
}
} ZEND_HASH_FOREACH_END();
}
smart_str_append_printf(str, "%s }\n", indent);
/* Static methods */
/* counting static methods */
count = zend_hash_num_elements(&ce->function_table);
if (count > 0) {
zend_function *mptr;
ZEND_HASH_MAP_FOREACH_PTR(&ce->function_table, mptr) {
if ((mptr->common.fn_flags & ZEND_ACC_STATIC)
&& ((mptr->common.fn_flags & ZEND_ACC_PRIVATE) == 0 || mptr->common.scope == ce))
{
count_static_funcs++;
}
} ZEND_HASH_FOREACH_END();
}
/* static methods */
smart_str_append_printf(str, "\n%s - Static methods [%d] {", indent, count_static_funcs);
if (count_static_funcs > 0) {
zend_function *mptr;
ZEND_HASH_MAP_FOREACH_PTR(&ce->function_table, mptr) {
if ((mptr->common.fn_flags & ZEND_ACC_STATIC)
&& ((mptr->common.fn_flags & ZEND_ACC_PRIVATE) == 0 || mptr->common.scope == ce))
{
smart_str_append_printf(str, "\n");
_function_string(str, mptr, ce, ZSTR_VAL(sub_indent));
}
} ZEND_HASH_FOREACH_END();
} else {
smart_str_append_printf(str, "\n");
}
smart_str_append_printf(str, "%s }\n", indent);
/* Default/Implicit properties */
count = zend_hash_num_elements(&ce->properties_info) - count_static_props - count_shadow_props;
smart_str_append_printf(str, "\n%s - Properties [%d] {\n", indent, count);
if (count > 0) {
zend_property_info *prop;
ZEND_HASH_MAP_FOREACH_PTR(&ce->properties_info, prop) {
if (!(prop->flags & ZEND_ACC_STATIC)
&& (!(prop->flags & ZEND_ACC_PRIVATE) || prop->ce == ce)) {
_property_string(str, prop, NULL, ZSTR_VAL(sub_indent));
}
} ZEND_HASH_FOREACH_END();
}
smart_str_append_printf(str, "%s }\n", indent);
if (obj && Z_TYPE_P(obj) == IS_OBJECT) {
HashTable *properties = Z_OBJ_HT_P(obj)->get_properties(Z_OBJ_P(obj));
zend_string *prop_name;
smart_str prop_str = {0};
count = 0;
if (properties && zend_hash_num_elements(properties)) {
ZEND_HASH_FOREACH_STR_KEY(properties, prop_name) {
if (prop_name && ZSTR_LEN(prop_name) && ZSTR_VAL(prop_name)[0]) { /* skip all private and protected properties */
if (!zend_hash_exists(&ce->properties_info, prop_name)) {
count++;
_property_string(&prop_str, NULL, ZSTR_VAL(prop_name), ZSTR_VAL(sub_indent));
}
}
} ZEND_HASH_FOREACH_END();
}
smart_str_append_printf(str, "\n%s - Dynamic properties [%d] {\n", indent, count);
smart_str_append_smart_str(str, &prop_str);
smart_str_append_printf(str, "%s }\n", indent);
smart_str_free(&prop_str);
}
/* Non static methods */
count = zend_hash_num_elements(&ce->function_table) - count_static_funcs;
if (count > 0) {
zend_function *mptr;
smart_str method_str = {0};
count = 0;
ZEND_HASH_MAP_FOREACH_PTR(&ce->function_table, mptr) {
if ((mptr->common.fn_flags & ZEND_ACC_STATIC) == 0
&& ((mptr->common.fn_flags & ZEND_ACC_PRIVATE) == 0 || mptr->common.scope == ce))
{
zend_function *closure;
/* see if this is a closure */
if (obj && is_closure_invoke(ce, mptr->common.function_name)
&& (closure = zend_get_closure_invoke_method(Z_OBJ_P(obj))) != NULL)
{
mptr = closure;
} else {
closure = NULL;
}
smart_str_appendc(&method_str, '\n');
_function_string(&method_str, mptr, ce, ZSTR_VAL(sub_indent));
count++;
_free_function(closure);
}
} ZEND_HASH_FOREACH_END();
smart_str_append_printf(str, "\n%s - Methods [%d] {", indent, count);
smart_str_append_smart_str(str, &method_str);
if (!count) {
smart_str_append_printf(str, "\n");
}
smart_str_free(&method_str);
} else {
smart_str_append_printf(str, "\n%s - Methods [0] {\n", indent);
}
smart_str_append_printf(str, "%s }\n", indent);
smart_str_append_printf(str, "%s}\n", indent);
zend_string_release_ex(sub_indent, 0);
}
/* }}} */
/* {{{ _const_string */
static void _const_string(smart_str *str, char *name, zval *value, char *indent)
{
const char *type = zend_zval_type_name(value);
if (Z_TYPE_P(value) == IS_ARRAY) {
smart_str_append_printf(str, "%s Constant [ %s %s ] { Array }\n",
indent, type, name);
} else if (Z_TYPE_P(value) == IS_STRING) {
smart_str_append_printf(str, "%s Constant [ %s %s ] { %s }\n",
indent, type, name, Z_STRVAL_P(value));
} else {
zend_string *tmp_value_str;
zend_string *value_str = zval_get_tmp_string(value, &tmp_value_str);
smart_str_append_printf(str, "%s Constant [ %s %s ] { %s }\n",
indent, type, name, ZSTR_VAL(value_str));
zend_tmp_string_release(tmp_value_str);
}
}
/* }}} */
/* {{{ _class_const_string */
static void _class_const_string(smart_str *str, zend_string *name, zend_class_constant *c, char *indent)
{
if (Z_TYPE(c->value) == IS_CONSTANT_AST && zend_update_class_constant(c, name, c->ce) == FAILURE) {
return;
}
const char *visibility = zend_visibility_string(ZEND_CLASS_CONST_FLAGS(c));
const char *final = ZEND_CLASS_CONST_FLAGS(c) & ZEND_ACC_FINAL ? "final " : "";
zend_string *type_str = ZEND_TYPE_IS_SET(c->type) ? zend_type_to_string(c->type) : NULL;
const char *type = type_str ? ZSTR_VAL(type_str) : zend_zval_type_name(&c->value);
smart_str_append_printf(str, "%sConstant [ %s%s %s %s ] { ",
indent, final, visibility, type, ZSTR_VAL(name));
if (Z_TYPE(c->value) == IS_ARRAY) {
smart_str_appends(str, "Array");
} else if (Z_TYPE(c->value) == IS_OBJECT) {
smart_str_appends(str, "Object");
} else {
zend_string *tmp_value_str;
zend_string *value_str = zval_get_tmp_string(&c->value, &tmp_value_str);
smart_str_append(str, value_str);
zend_tmp_string_release(tmp_value_str);
}
smart_str_appends(str, " }\n");
if (type_str) {
zend_string_release(type_str);
}
}
/* }}} */
static zend_op *get_recv_op(zend_op_array *op_array, uint32_t offset)
{
zend_op *op = op_array->opcodes;
zend_op *end = op + op_array->last;
++offset;
while (op < end) {
if ((op->opcode == ZEND_RECV || op->opcode == ZEND_RECV_INIT
|| op->opcode == ZEND_RECV_VARIADIC) && op->op1.num == offset)
{
return op;
}
++op;
}
ZEND_ASSERT(0 && "Failed to find op");
return NULL;
}
static zval *get_default_from_recv(zend_op_array *op_array, uint32_t offset) {
zend_op *recv = get_recv_op(op_array, offset);
if (!recv || recv->opcode != ZEND_RECV_INIT) {
return NULL;
}
return RT_CONSTANT(recv, recv->op2);
}
static int format_default_value(smart_str *str, zval *value) {
if (Z_TYPE_P(value) <= IS_STRING) {
smart_str_append_scalar(str, value, SIZE_MAX);
} else if (Z_TYPE_P(value) == IS_ARRAY) {
zend_string *str_key;
zend_long num_key;
zval *zv;
bool is_list = zend_array_is_list(Z_ARRVAL_P(value));
bool first = true;
smart_str_appendc(str, '[');
ZEND_HASH_FOREACH_KEY_VAL(Z_ARRVAL_P(value), num_key, str_key, zv) {
if (!first) {
smart_str_appends(str, ", ");
}
first = false;
if (!is_list) {
if (str_key) {
smart_str_appendc(str, '\'');
smart_str_append_escaped(str, ZSTR_VAL(str_key), ZSTR_LEN(str_key));
smart_str_appendc(str, '\'');
} else {
smart_str_append_long(str, num_key);
}
smart_str_appends(str, " => ");
}
format_default_value(str, zv);
} ZEND_HASH_FOREACH_END();
smart_str_appendc(str, ']');
} else if (Z_TYPE_P(value) == IS_OBJECT) {
/* This branch is reached if the constant AST was already evaluated and
* resulted in an object; show enum names, or the type of non-enums
* (GH-15902) */
zend_object *obj = Z_OBJ_P(value);
zend_class_entry *class = obj->ce;
if (class->ce_flags & ZEND_ACC_ENUM) {
smart_str_append(str, class->name);
smart_str_appends(str, "::");
smart_str_append(str, Z_STR_P(zend_enum_fetch_case_name(obj)));
} else {
smart_str_appends(str, "object(");
smart_str_append(str, class->name);
smart_str_appends(str, ")");
}
} else {
ZEND_ASSERT(Z_TYPE_P(value) == IS_CONSTANT_AST);
zend_string *ast_str = zend_ast_export("", Z_ASTVAL_P(value), "");
smart_str_append(str, ast_str);
zend_string_release(ast_str);
}
return SUCCESS;
}
static inline bool has_internal_arg_info(const zend_function *fptr) {
return fptr->type == ZEND_INTERNAL_FUNCTION
&& !(fptr->common.fn_flags & ZEND_ACC_USER_ARG_INFO);
}
/* {{{ _parameter_string */
static void _parameter_string(smart_str *str, zend_function *fptr, struct _zend_arg_info *arg_info, uint32_t offset, bool required, char* indent)
{
smart_str_append_printf(str, "Parameter #%d [ ", offset);
if (!required) {
smart_str_append_printf(str, "<optional> ");
} else {
smart_str_append_printf(str, "<required> ");
}
if (ZEND_TYPE_IS_SET(arg_info->type)) {
zend_string *type_str = zend_type_to_string(arg_info->type);
smart_str_append(str, type_str);
smart_str_appendc(str, ' ');
zend_string_release(type_str);
}
if (ZEND_ARG_SEND_MODE(arg_info)) {
smart_str_appendc(str, '&');
}
if (ZEND_ARG_IS_VARIADIC(arg_info)) {
smart_str_appends(str, "...");
}
smart_str_append_printf(str, "$%s", has_internal_arg_info(fptr)
? ((zend_internal_arg_info*)arg_info)->name : ZSTR_VAL(arg_info->name));
if (!required && !ZEND_ARG_IS_VARIADIC(arg_info)) {
if (fptr->type == ZEND_INTERNAL_FUNCTION) {
smart_str_appends(str, " = ");
/* TODO: We don't have a way to fetch the default value for an internal function
* with userland arg info. */
if (has_internal_arg_info(fptr)
&& ((zend_internal_arg_info*)arg_info)->default_value) {
smart_str_appends(str, ((zend_internal_arg_info*)arg_info)->default_value);
} else {
smart_str_appends(str, "<default>");
}
} else {
zval *default_value = get_default_from_recv((zend_op_array*)fptr, offset);
if (default_value) {
smart_str_appends(str, " = ");
if (format_default_value(str, default_value) == FAILURE) {
return;
}
}
}
}
smart_str_appends(str, " ]");
}
/* }}} */
/* {{{ _function_parameter_string */
static void _function_parameter_string(smart_str *str, zend_function *fptr, char* indent)
{
struct _zend_arg_info *arg_info = fptr->common.arg_info;
uint32_t i, num_args, num_required = fptr->common.required_num_args;
if (!arg_info) {
return;
}
num_args = fptr->common.num_args;
if (fptr->common.fn_flags & ZEND_ACC_VARIADIC) {
num_args++;
}
smart_str_appendc(str, '\n');
smart_str_append_printf(str, "%s- Parameters [%d] {\n", indent, num_args);
for (i = 0; i < num_args; i++) {
smart_str_append_printf(str, "%s ", indent);
_parameter_string(str, fptr, arg_info, i, i < num_required, indent);
smart_str_appendc(str, '\n');
arg_info++;
}
smart_str_append_printf(str, "%s}\n", indent);
}
/* }}} */
/* {{{ _function_closure_string */
static void _function_closure_string(smart_str *str, zend_function *fptr, char* indent)
{
uint32_t i, count;
zend_string *key;
HashTable *static_variables;
if (fptr->type != ZEND_USER_FUNCTION || !fptr->op_array.static_variables) {
return;
}
static_variables = ZEND_MAP_PTR_GET(fptr->op_array.static_variables_ptr);
count = zend_hash_num_elements(static_variables);
if (!count) {
return;
}
smart_str_append_printf(str, "\n");
smart_str_append_printf(str, "%s- Bound Variables [%d] {\n", indent, zend_hash_num_elements(static_variables));
i = 0;
ZEND_HASH_MAP_FOREACH_STR_KEY(static_variables, key) {
smart_str_append_printf(str, "%s Variable #%d [ $%s ]\n", indent, i++, ZSTR_VAL(key));
} ZEND_HASH_FOREACH_END();
smart_str_append_printf(str, "%s}\n", indent);
}
/* }}} */
/* {{{ _function_string */
static void _function_string(smart_str *str, zend_function *fptr, zend_class_entry *scope, char* indent)
{
smart_str param_indent = {0};
zend_function *overwrites;
zend_string *lc_name;
/* TBD: Repair indenting of doc comment (or is this to be done in the parser?)
* What's "wrong" is that any whitespace before the doc comment start is
* swallowed, leading to an unaligned comment.
*/
if (fptr->type == ZEND_USER_FUNCTION && fptr->op_array.doc_comment) {
smart_str_append_printf(str, "%s%s\n", indent, ZSTR_VAL(fptr->op_array.doc_comment));
}
smart_str_appendl(str, indent, strlen(indent));
smart_str_append_printf(str, fptr->common.fn_flags & ZEND_ACC_CLOSURE ? "Closure [ " : (fptr->common.scope ? "Method [ " : "Function [ "));
smart_str_append_printf(str, (fptr->type == ZEND_USER_FUNCTION) ? "<user" : "<internal");
if (fptr->common.fn_flags & ZEND_ACC_DEPRECATED) {
smart_str_appends(str, ", deprecated");
}
if (fptr->type == ZEND_INTERNAL_FUNCTION && ((zend_internal_function*)fptr)->module) {
smart_str_append_printf(str, ":%s", ((zend_internal_function*)fptr)->module->name);
}
if (scope && fptr->common.scope) {
if (fptr->common.scope != scope) {
smart_str_append_printf(str, ", inherits %s", ZSTR_VAL(fptr->common.scope->name));
} else if (fptr->common.scope->parent) {
lc_name = zend_string_tolower(fptr->common.function_name);
if ((overwrites = zend_hash_find_ptr(&fptr->common.scope->parent->function_table, lc_name)) != NULL) {
if (fptr->common.scope != overwrites->common.scope && !(overwrites->common.fn_flags & ZEND_ACC_PRIVATE)) {
smart_str_append_printf(str, ", overwrites %s", ZSTR_VAL(overwrites->common.scope->name));
}
}
zend_string_release_ex(lc_name, 0);
}
}
if (fptr->common.prototype && fptr->common.prototype->common.scope) {
smart_str_append_printf(str, ", prototype %s", ZSTR_VAL(fptr->common.prototype->common.scope->name));
}
if (fptr->common.fn_flags & ZEND_ACC_CTOR) {
smart_str_appends(str, ", ctor");
}
smart_str_appends(str, "> ");
if (fptr->common.fn_flags & ZEND_ACC_ABSTRACT) {
smart_str_appends(str, "abstract ");
}
if (fptr->common.fn_flags & ZEND_ACC_FINAL) {
smart_str_appends(str, "final ");
}
if (fptr->common.fn_flags & ZEND_ACC_STATIC) {
smart_str_appends(str, "static ");
}
if (fptr->common.scope) {
/* These are mutually exclusive */
switch (fptr->common.fn_flags & ZEND_ACC_PPP_MASK) {
case ZEND_ACC_PUBLIC:
smart_str_appends(str, "public ");
break;
case ZEND_ACC_PRIVATE:
smart_str_appends(str, "private ");
break;
case ZEND_ACC_PROTECTED:
smart_str_appends(str, "protected ");
break;
default:
smart_str_appends(str, "<visibility error> ");
break;
}
smart_str_appends(str, "method ");
} else {
smart_str_appends(str, "function ");
}
if (fptr->op_array.fn_flags & ZEND_ACC_RETURN_REFERENCE) {
smart_str_appendc(str, '&');
}
smart_str_append_printf(str, "%s ] {\n", ZSTR_VAL(fptr->common.function_name));
/* The information where a function is declared is only available for user classes */
if (fptr->type == ZEND_USER_FUNCTION) {
smart_str_append_printf(str, "%s @@ %s %d - %d\n", indent,
ZSTR_VAL(fptr->op_array.filename),
fptr->op_array.line_start,
fptr->op_array.line_end);
}
smart_str_append_printf(¶m_indent, "%s ", indent);
smart_str_0(¶m_indent);
if (fptr->common.fn_flags & ZEND_ACC_CLOSURE) {
_function_closure_string(str, fptr, ZSTR_VAL(param_indent.s));
}
_function_parameter_string(str, fptr, ZSTR_VAL(param_indent.s));
smart_str_free(¶m_indent);
if ((fptr->op_array.fn_flags & ZEND_ACC_HAS_RETURN_TYPE)) {
smart_str_append_printf(str, " %s- %s [ ", indent, ZEND_ARG_TYPE_IS_TENTATIVE(&fptr->common.arg_info[-1]) ? "Tentative return" : "Return");
if (ZEND_TYPE_IS_SET(fptr->common.arg_info[-1].type)) {
zend_string *type_str = zend_type_to_string(fptr->common.arg_info[-1].type);
smart_str_append_printf(str, "%s ", ZSTR_VAL(type_str));
zend_string_release(type_str);
}
smart_str_appends(str, "]\n");
}
smart_str_append_printf(str, "%s}\n", indent);
}
/* }}} */
static zval *property_get_default(zend_property_info *prop_info) {
zend_class_entry *ce = prop_info->ce;
if (prop_info->flags & ZEND_ACC_STATIC) {
zval *prop = &ce->default_static_members_table[prop_info->offset];
ZVAL_DEINDIRECT(prop);
return prop;
} else {
return &ce->default_properties_table[OBJ_PROP_TO_NUM(prop_info->offset)];
}
}
/* {{{ _property_string */
static void _property_string(smart_str *str, zend_property_info *prop, const char *prop_name, char* indent)
{
smart_str_append_printf(str, "%sProperty [ ", indent);
if (!prop) {
smart_str_append_printf(str, "<dynamic> public $%s", prop_name);
} else {
/* These are mutually exclusive */
switch (prop->flags & ZEND_ACC_PPP_MASK) {
case ZEND_ACC_PUBLIC:
smart_str_appends(str, "public ");
break;
case ZEND_ACC_PRIVATE:
smart_str_appends(str, "private ");
break;
case ZEND_ACC_PROTECTED:
smart_str_appends(str, "protected ");
break;
}
if (prop->flags & ZEND_ACC_STATIC) {
smart_str_appends(str, "static ");
}
if (prop->flags & ZEND_ACC_READONLY) {
smart_str_appends(str, "readonly ");
}
if (ZEND_TYPE_IS_SET(prop->type)) {
zend_string *type_str = zend_type_to_string(prop->type);
smart_str_append(str, type_str);
smart_str_appendc(str, ' ');
zend_string_release(type_str);
}
if (!prop_name) {
const char *class_name;
zend_unmangle_property_name(prop->name, &class_name, &prop_name);
}
smart_str_append_printf(str, "$%s", prop_name);
zval *default_value = property_get_default(prop);
if (!Z_ISUNDEF_P(default_value)) {
smart_str_appends(str, " = ");
if (format_default_value(str, default_value) == FAILURE) {
return;
}
}
}
smart_str_appends(str, " ]\n");
}
/* }}} */
static void _extension_ini_string(zend_ini_entry *ini_entry, smart_str *str, char *indent, int number) /* {{{ */
{
char *comma = "";
if (number == ini_entry->module_number) {
smart_str_append_printf(str, " %sEntry [ %s <", indent, ZSTR_VAL(ini_entry->name));
if (ini_entry->modifiable == ZEND_INI_ALL) {
smart_str_appends(str, "ALL");
} else {
if (ini_entry->modifiable & ZEND_INI_USER) {
smart_str_appends(str, "USER");
comma = ",";
}
if (ini_entry->modifiable & ZEND_INI_PERDIR) {
smart_str_append_printf(str, "%sPERDIR", comma);
comma = ",";
}
if (ini_entry->modifiable & ZEND_INI_SYSTEM) {
smart_str_append_printf(str, "%sSYSTEM", comma);
}
}
smart_str_appends(str, "> ]\n");
smart_str_append_printf(str, " %s Current = '%s'\n", indent, ini_entry->value ? ZSTR_VAL(ini_entry->value) : "");
if (ini_entry->modified) {
smart_str_append_printf(str, " %s Default = '%s'\n", indent, ini_entry->orig_value ? ZSTR_VAL(ini_entry->orig_value) : "");
}
smart_str_append_printf(str, " %s}\n", indent);
}
}
/* }}} */
static void _extension_class_string(zend_class_entry *ce, zend_string *key, smart_str *str, char *indent, zend_module_entry *module, int *num_classes) /* {{{ */
{
if (ce->type == ZEND_INTERNAL_CLASS && ce->info.internal.module && !strcasecmp(ce->info.internal.module->name, module->name)) {
/* dump class if it is not an alias */
if (zend_string_equals_ci(ce->name, key)) {
smart_str_append_printf(str, "\n");
_class_string(str, ce, NULL, indent);
(*num_classes)++;
}
}
}
/* }}} */
static void _extension_string(smart_str *str, zend_module_entry *module, char *indent) /* {{{ */
{
smart_str_append_printf(str, "%sExtension [ ", indent);
if (module->type == MODULE_PERSISTENT) {