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File: ext/kernel/object.h

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File: ext/kernel/object.h
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/*
  +------------------------------------------------------------------------+
  | Zephir Language                                                        |
  +------------------------------------------------------------------------+
  | Copyright (c) 2011-2015 Zephir Team (http://www.zephir-lang.com)       |
  +------------------------------------------------------------------------+
  | This source file is subject to the New BSD License that is bundled     |
  | with this package in the file docs/LICENSE.txt.                        |
  |                                                                        |
  | If you did not receive a copy of the license and are unable to         |
  | obtain it through the world-wide-web, please send an email             |
  | to license@zephir-lang.com so we can send you a copy immediately.      |
  +------------------------------------------------------------------------+
  | Authors: Andres Gutierrez <andres@zephir-lang.com>                     |
  |          Eduar Carvajal <eduar@zephir-lang.com>                        |
  |          Vladimir Kolesnikov <vladimir@extrememember.com>              |
  +------------------------------------------------------------------------+
*/

#ifndef ZEPHIR_KERNEL_OBJECT_H
#define ZEPHIR_KERNEL_OBJECT_H

#include <php.h>
#include <Zend/zend.h>

#include "kernel/globals.h"
#include "kernel/main.h"

/** Class Retrieving/Checking */
int zephir_class_exists(const zval *class_name, int autoload TSRMLS_DC);
int zephir_interface_exists(const zval *interface_name, int autoload TSRMLS_DC);
void zephir_get_class(zval *result, zval *object, int lower TSRMLS_DC);
void zephir_get_class_ns(zval *result, zval *object, int lower TSRMLS_DC);
void zephir_get_ns_class(zval *result, zval *object, int lower TSRMLS_DC);
void zephir_get_called_class(zval *return_value TSRMLS_DC);
zend_class_entry *zephir_fetch_class(const zval *class_name TSRMLS_DC);
zend_class_entry* zephir_fetch_self_class(TSRMLS_D);
zend_class_entry* zephir_fetch_parent_class(TSRMLS_D);
zend_class_entry* zephir_fetch_static_class(TSRMLS_D);

#define ZEPHIR_GET_CLASS_CONSTANT(return_value, ce, const_name) \
	do { \
		if (FAILURE == zephir_get_class_constant(return_value, ce, const_name, strlen(const_name)+1 TSRMLS_CC)) { \
			ZEPHIR_MM_RESTORE(); \
			return; \
		} \
	} while (0)

/** Class constants */
int zephir_get_class_constant(zval *return_value, zend_class_entry *ce, char *constant_name, unsigned int constant_length TSRMLS_DC);

/** Cloning/Instance of*/
int zephir_clone(zval *destiny, zval *obj TSRMLS_DC);
int zephir_instance_of(zval *result, const zval *object, const zend_class_entry *ce TSRMLS_DC);
int zephir_is_instance_of(zval *object, const char *class_name, unsigned int class_length TSRMLS_DC);
int zephir_instance_of_ev(const zval *object, const zend_class_entry *ce TSRMLS_DC);
int zephir_zval_is_traversable(zval *object TSRMLS_DC);

/** Method exists */
int zephir_method_exists(const zval *object, const zval *method_name TSRMLS_DC);
int zephir_method_exists_ex(const zval *object, const char *method_name, unsigned int method_len TSRMLS_DC);
int zephir_method_quick_exists_ex(const zval *object, const char *method_name, unsigned int method_len, unsigned long hash TSRMLS_DC);

/** Isset properties */
int zephir_isset_property(zval *object, const char *property_name, unsigned int property_length TSRMLS_DC);
int zephir_isset_property_quick(zval *object, const char *property_name, unsigned int property_length, unsigned long hash TSRMLS_DC);
int zephir_isset_property_zval(zval *object, const zval *property TSRMLS_DC);

/** Reading properties */
zval* zephir_fetch_property_this_quick(zval *object, const char *property_name, zend_uint property_length, ulong key, int silent TSRMLS_DC);
int zephir_read_property(zval **result, zval *object, const char *property_name, zend_uint property_length, int silent TSRMLS_DC);
int zephir_read_property_zval(zval **result, zval *object, zval *property, int silent TSRMLS_DC);
int zephir_return_property(zval *return_value, zval **return_value_ptr, zval *object, char *property_name, unsigned int property_length TSRMLS_DC);
int zephir_return_property_quick(zval *return_value, zval **return_value_ptr, zval *object, char *property_name, unsigned int property_length, unsigned long key TSRMLS_DC);
int zephir_fetch_property(zval **result, zval *object, const char *property_name, zend_uint property_length, int silent TSRMLS_DC);
int zephir_fetch_property_zval(zval **result, zval *object, zval *property, int silent TSRMLS_DC);

/** Updating properties */
int zephir_update_property_this(zval *object, char *property_name, unsigned int property_length, zval *value TSRMLS_DC);
int zephir_update_property_long(zval *obj, char *property_name, unsigned int property_length, long value TSRMLS_DC);
int zephir_update_property_string(zval *object, char *property_name, unsigned int property_length, char *str, unsigned int str_length TSRMLS_DC);
int zephir_update_property_bool(zval *obj, char *property_name, unsigned int property_length, int value TSRMLS_DC);
int zephir_update_property_null(zval *obj, char *property_name, unsigned int property_length TSRMLS_DC);
int zephir_update_property_zval(zval *obj, const char *property_name, unsigned int property_length, zval *value TSRMLS_DC);
int zephir_update_property_zval_zval(zval *obj, zval *property, zval *value TSRMLS_DC);
int zephir_update_property_empty_array(zend_class_entry *ce, zval *object, char *property, unsigned int property_length TSRMLS_DC);

/** Updating array properties */
int zephir_update_property_array(zval *object, const char *property, zend_uint property_length, const zval *index, zval *value TSRMLS_DC);
int zephir_update_property_array_string(zval *object, char *property, unsigned int property_length, char *index, unsigned int index_length, zval *value TSRMLS_DC);
int zephir_update_property_array_append(zval *object, char *property, unsigned int property_length, zval *value TSRMLS_DC);
int zephir_update_property_array_multi(zval *object, const char *property, zend_uint property_length, zval **value TSRMLS_DC, const char *types, int types_length, int types_count, ...);

/** Increment/Decrement properties */
int zephir_property_incr(zval *object, char *property_name, unsigned int property_length TSRMLS_DC);
int zephir_property_decr(zval *object, char *property_name, unsigned int property_length TSRMLS_DC);

/** Unset properties */
int zephir_unset_property(zval* object, const char* name TSRMLS_DC);
int zephir_unset_property_array(zval *object, char *property, unsigned int property_length, zval *index TSRMLS_DC);

/** Static properties */
int zephir_read_static_property(zval **result, const char *class_name, unsigned int class_length, char *property_name, unsigned int property_length TSRMLS_DC);
int zephir_update_static_property_ce(zend_class_entry *ce, const char *name, int len, zval **value TSRMLS_DC);
int zephir_update_static_property_ce_cache(zend_class_entry *ce, const char *name, int len, zval **value, zend_property_info **property_info TSRMLS_DC);
int zephir_update_static_property(const char *class_name, unsigned int class_length, char *name, unsigned int name_length, zval **value TSRMLS_DC);
int zephir_read_static_property_ce(zval **result, zend_class_entry *ce, const char *property, int len TSRMLS_DC);
int zephir_read_class_property(zval **result, int type, const char *property, int len TSRMLS_DC);
zval* zephir_fetch_static_property_ce(zend_class_entry *ce, const char *property, int len TSRMLS_DC);
int zephir_update_static_property_array_multi_ce(zend_class_entry *ce, const char *property, zend_uint property_length, zval **value TSRMLS_DC, const char *types, int types_length, int types_count, ...);

/** Create instances */
int zephir_create_instance(zval *return_value, const zval *class_name TSRMLS_DC);
int zephir_create_instance_params(zval *return_value, const zval *class_name, zval *params TSRMLS_DC);

/** Create closures */
int zephir_create_closure_ex(zval *return_value, zval *this_ptr, zend_class_entry *ce, const char *method_name, zend_uint method_length TSRMLS_DC);

/**
 * Reads a property from this_ptr (with pre-calculated key)
 * Variables must be defined in the class definition. This function ignores magic methods or dynamic properties
 */
ZEPHIR_ATTR_NONNULL static inline int zephir_read_property_this_quick(zval **result, zval *object, const char *property_name, zend_uint property_length, ulong key, int silent TSRMLS_DC)
{
  zval *tmp = zephir_fetch_property_this_quick(object, property_name, property_length, key, silent TSRMLS_CC);
  if (EXPECTED(tmp != NULL)) {
	*result = tmp;
	Z_ADDREF_PP(result);
	return SUCCESS;
  }

  ALLOC_INIT_ZVAL(*result);
  return FAILURE;
}

/**
 * Reads a property from this_ptr
 * Variables must be defined in the class definition. This function ignores magic methods or dynamic properties
 */
ZEPHIR_ATTR_NONNULL static inline int zephir_read_property_this(zval **result, zval *object, const char *property_name, zend_uint property_length, int silent TSRMLS_DC)
{
#ifdef __GNUC__
  if (__builtin_constant_p(property_name) && __builtin_constant_p(property_length)) {
	return zephir_read_property_this_quick(result, object, property_name, property_length, zend_inline_hash_func(property_name, property_length + 1), silent TSRMLS_CC);
  }
#endif

  return zephir_read_property_this_quick(result, object, property_name, property_length, zend_hash_func(property_name, property_length + 1), silent TSRMLS_CC);
}

ZEPHIR_ATTR_NONNULL static inline zval* zephir_fetch_nproperty_this_quick(zval *object, const char *property_name, zend_uint property_length, ulong key, int silent TSRMLS_DC)
{
#ifdef __GNUC__
  if (__builtin_constant_p(property_name) && __builtin_constant_p(property_length)) {
	zval *result = zephir_fetch_property_this_quick(object, property_name, property_length, key, silent TSRMLS_CC);
	return result ? result : EG(uninitialized_zval_ptr);
  }
#endif

  zval *result = zephir_fetch_property_this_quick(object, property_name, property_length, key, silent TSRMLS_CC);
  return result ? result : EG(uninitialized_zval_ptr);
}

ZEPHIR_ATTR_NONNULL static inline zval* zephir_fetch_nproperty_this(zval *object, const char *property_name, zend_uint property_length, int silent TSRMLS_DC)
{
#ifdef __GNUC__
  if (__builtin_constant_p(property_name) && __builtin_constant_p(property_length)) {
	return zephir_fetch_nproperty_this_quick(object, property_name, property_length, zend_inline_hash_func(property_name, property_length + 1), silent TSRMLS_CC);
  }
#endif

  return zephir_fetch_nproperty_this_quick(object, property_name, property_length, zend_hash_func(property_name, property_length + 1), silent TSRMLS_CC);
}

ZEPHIR_ATTR_NONNULL static inline zval* zephir_fetch_property_this(zval *object, const char *property_name, zend_uint property_length, int silent TSRMLS_DC)
{
#ifdef __GNUC__
  if (__builtin_constant_p(property_name) && __builtin_constant_p(property_length)) {
	return zephir_fetch_property_this_quick(object, property_name, property_length, zend_inline_hash_func(property_name, property_length + 1), silent TSRMLS_CC);
  }
#endif

  return zephir_fetch_property_this_quick(object, property_name, property_length, zend_hash_func(property_name, property_length + 1), silent TSRMLS_CC);
}

#endif

#define zephir_fetch_safe_class(destination, var) \
  	{ \
		if (Z_TYPE_P(var) == IS_STRING) { \
			ZEPHIR_CPY_WRT(destination, var); \
		} else { \
			ZEPHIR_INIT_NVAR(destination); \
			ZVAL_STRING(destination, "<undefined class>", 1); \
		} \
	}