--- /dev/null
+/*
+ +--------------------------------------------------------------------+
+ | PECL :: propro |
+ +--------------------------------------------------------------------+
+ | Redistribution and use in source and binary forms, with or without |
+ | modification, are permitted provided that the conditions mentioned |
+ | in the accompanying LICENSE file are met. |
+ +--------------------------------------------------------------------+
+ | Copyright (c) 2013 Michael Wallner <mike@php.net> |
+ +--------------------------------------------------------------------+
+*/
+
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <php.h>
+#include <ext/standard/info.h>
+
+#include "php_propro.h"
+
+typedef int STATUS;
+
+#define DEBUG_PROPRO 0
+
+#if PHP_VERSION_ID < 50400
+# define object_properties_init(o, ce) zend_hash_copy(((zend_object *) o)->properties, &(ce->default_properties), (copy_ctor_func_t) zval_add_ref, NULL, sizeof(zval*))
+#endif
+
+PHP_PROPRO_API php_property_proxy_t *php_property_proxy_init(zval *container, const char *member_str, size_t member_len TSRMLS_DC)
+{
+ php_property_proxy_t *proxy = ecalloc(1, sizeof(*proxy));
+
+ Z_ADDREF_P(container);
+ proxy->container = container;
+ proxy->member_str = estrndup(member_str, member_len);
+ proxy->member_len = member_len;
+
+ return proxy;
+}
+
+PHP_PROPRO_API void php_property_proxy_free(php_property_proxy_t **proxy)
+{
+ if (*proxy) {
+ zval_ptr_dtor(&(*proxy)->container);
+ efree((*proxy)->member_str);
+ efree(*proxy);
+ *proxy = NULL;
+ }
+}
+
+static zend_class_entry *php_property_proxy_class_entry;
+static zend_object_handlers php_property_proxy_object_handlers;
+
+PHP_PROPRO_API zend_class_entry *php_property_proxy_get_class_entry(void)
+{
+ return php_property_proxy_class_entry;
+}
+
+PHP_PROPRO_API zend_object_value php_property_proxy_object_new(zend_class_entry *ce TSRMLS_DC)
+{
+ return php_property_proxy_object_new_ex(ce, NULL, NULL TSRMLS_CC);
+}
+
+static void php_property_proxy_object_free(void *object TSRMLS_DC)
+{
+ php_property_proxy_object_t *o = object;
+
+#if DEBUG_PROPRO
+ fprintf(stderr, "#PP %p free\n", o);
+#endif
+
+ if (o->proxy) {
+ php_property_proxy_free(&o->proxy);
+ }
+ if (o->parent) {
+ zend_objects_store_del_ref_by_handle_ex(o->parent->zv.handle, o->parent->zv.handlers TSRMLS_CC);
+ o->parent = NULL;
+ }
+ zend_object_std_dtor((zend_object *) o TSRMLS_CC);
+ efree(o);
+}
+
+PHP_PROPRO_API zend_object_value php_property_proxy_object_new_ex(zend_class_entry *ce, php_property_proxy_t *proxy, php_property_proxy_object_t **ptr TSRMLS_DC)
+{
+ php_property_proxy_object_t *o;
+
+ o = ecalloc(1, sizeof(*o));
+ zend_object_std_init((zend_object *) o, ce TSRMLS_CC);
+ object_properties_init((zend_object *) o, ce);
+
+ if (ptr) {
+ *ptr = o;
+ }
+ o->proxy = proxy;
+
+ o->zv.handle = zend_objects_store_put(o, NULL, php_property_proxy_object_free, NULL TSRMLS_CC);
+ o->zv.handlers = &php_property_proxy_object_handlers;
+
+#if DEBUG_PROPRO
+ fprintf(stderr, "#PP %p init\n", o);
+#endif
+
+ return o->zv;
+}
+
+#if DEBUG_PROPRO
+/* we do not really care about TS when debugging */
+static int level = 1;
+static const char space[] = " ";
+static const char *inoutstr[] = {"< return",""," > enter"};
+static void _walk(php_property_proxy_object_t *obj TSRMLS_DC)
+{
+ if (obj) {
+ _walk(obj->parent TSRMLS_CC);
+ fprintf(stderr, ".%s", obj->proxy->member_str);
+ }
+}
+
+static void debug_propro(int inout, const char *f, zval *object, zval *offset, zval *value TSRMLS_DC)
+{
+ php_property_proxy_object_t *obj = zend_object_store_get_object(object TSRMLS_CC);
+
+ fprintf(stderr, "#PP %p %s %s %s ", obj, &space[sizeof(space)-level], inoutstr[inout+1], f);
+
+ level += inout;
+
+ _walk(obj TSRMLS_CC);
+
+ if (*f++=='d'
+ && *f++=='i'
+ && *f++=='m'
+ ) {
+ char *offset_str = "[]";
+ zval *o = offset;
+
+ if (o) {
+ convert_to_string_ex(&o);
+ offset_str = Z_STRVAL_P(o);
+ }
+
+ fprintf(stderr, ".%s", offset_str);
+
+ if (o && o != offset) {
+ zval_ptr_dtor(&o);
+ }
+ }
+ if (value) {
+ const char *t[] = {
+ "NULL",
+ "int",
+ "float",
+ "bool",
+ "Array",
+ "Object",
+ "string",
+ "resource",
+ "const",
+ "const Array",
+ "callable"
+ };
+ fprintf(stderr, " = (%s) ", t[Z_TYPE_P(value)&0xf]);
+ zend_print_flat_zval_r(value TSRMLS_CC);
+ }
+
+ fprintf(stderr, "\n");
+}
+#else
+#define debug_propro(l, f, obj, off, val)
+#endif
+
+static zval *get_parent_proxied_value(zval *object TSRMLS_DC);
+static zval *get_proxied_value(zval *object TSRMLS_DC);
+static zval *read_dimension(zval *object, zval *offset, int type TSRMLS_DC);
+static STATUS cast_proxied_value(zval *object, zval *return_value, int type TSRMLS_DC);
+static void write_dimension(zval *object, zval *offset, zval *value TSRMLS_DC);
+static void set_proxied_value(zval **object, zval *value TSRMLS_DC);
+
+static zval *get_parent_proxied_value(zval *object TSRMLS_DC)
+{
+ zval *value = NULL;
+ php_property_proxy_object_t *obj = zend_object_store_get_object(object TSRMLS_CC);
+
+ if (obj->proxy) {
+ if (obj->parent) {
+ zval *parent;
+
+ MAKE_STD_ZVAL(parent);
+ parent->type = IS_OBJECT;
+ parent->value.obj = obj->parent->zv;
+ zend_objects_store_add_ref_by_handle(obj->parent->zv.handle TSRMLS_CC);
+ value = get_proxied_value(parent TSRMLS_CC);
+ zval_ptr_dtor(&parent);
+ }
+ }
+
+ return value;
+}
+
+static zval *get_proxied_value(zval *object TSRMLS_DC)
+{
+ zval **hash_value, *value = NULL;
+ php_property_proxy_object_t *obj = zend_object_store_get_object(object TSRMLS_CC);
+
+ debug_propro(1, "get", object, NULL, NULL TSRMLS_CC);
+
+ if (obj->proxy) {
+ if (obj->parent) {
+ zval *parent_value = get_parent_proxied_value(object TSRMLS_CC);
+
+ if (parent_value && parent_value != obj->proxy->container) {
+ Z_ADDREF_P(parent_value);
+ zval_ptr_dtor(&obj->proxy->container);
+ obj->proxy->container = parent_value;
+ }
+ }
+ switch (Z_TYPE_P(obj->proxy->container)) {
+ case IS_OBJECT:
+ value = zend_read_property(Z_OBJCE_P(obj->proxy->container), obj->proxy->container, obj->proxy->member_str, obj->proxy->member_len, 0 TSRMLS_CC);
+ break;
+
+ case IS_ARRAY:
+ if (SUCCESS == zend_symtable_find(Z_ARRVAL_P(obj->proxy->container), obj->proxy->member_str, obj->proxy->member_len + 1, (void *) &hash_value)) {
+ value = *hash_value;
+ }
+ break;
+ }
+ }
+
+ debug_propro(-1, "get", object, NULL, value TSRMLS_CC);
+
+ return value;
+}
+
+static STATUS cast_proxied_value(zval *object, zval *return_value, int type TSRMLS_DC)
+{
+ zval *proxied_value;
+
+ if ((proxied_value = get_proxied_value(object TSRMLS_CC))) {
+ RETVAL_ZVAL(proxied_value, 1, 0);
+ if (Z_TYPE_P(proxied_value) != type) {
+ convert_to_explicit_type(return_value, type);
+ }
+ return SUCCESS;
+ }
+
+ return FAILURE;
+}
+
+static void set_proxied_value(zval **object, zval *value TSRMLS_DC)
+{
+ php_property_proxy_object_t *obj = zend_object_store_get_object(*object TSRMLS_CC);
+
+ debug_propro(1, "set", *object, NULL, value TSRMLS_CC);
+
+ if (obj->proxy) {
+ if (obj->parent) {
+ zval *parent_value = get_parent_proxied_value(*object TSRMLS_CC);
+
+ if (parent_value && parent_value != obj->proxy->container) {
+ Z_ADDREF_P(parent_value);
+ zval_ptr_dtor(&obj->proxy->container);
+ obj->proxy->container = parent_value;
+ }
+ }
+
+ switch (Z_TYPE_P(obj->proxy->container)) {
+ case IS_OBJECT:
+ zend_update_property(Z_OBJCE_P(obj->proxy->container), obj->proxy->container, obj->proxy->member_str, obj->proxy->member_len, value TSRMLS_CC);
+ break;
+
+ case IS_ARRAY:
+ Z_ADDREF_P(value);
+ zend_symtable_update(Z_ARRVAL_P(obj->proxy->container), obj->proxy->member_str, obj->proxy->member_len + 1, (void *) &value, sizeof(zval *), NULL);
+ break;
+ }
+
+ if (obj->parent) {
+ zval *zparent;
+ MAKE_STD_ZVAL(zparent);
+ zparent->type = IS_OBJECT;
+ zparent->value.obj = obj->parent->zv;
+ zend_objects_store_add_ref_by_handle(obj->parent->zv.handle TSRMLS_CC);
+ set_proxied_value(&zparent, obj->proxy->container TSRMLS_CC);
+ zval_ptr_dtor(&zparent);
+ }
+ }
+
+ debug_propro(-1, "set", *object, NULL, NULL TSRMLS_CC);
+}
+
+static zval *read_dimension(zval *object, zval *offset, int type TSRMLS_DC)
+{
+ zval *value = NULL;
+ zval *proxied_value;
+ zval *o = offset;
+
+ debug_propro(1, type == BP_VAR_R ? "dim_read" : "dim_read_ref", object, offset, NULL TSRMLS_CC);
+
+ proxied_value = get_proxied_value(object TSRMLS_CC);
+ convert_to_string_ex(&o);
+
+ if (BP_VAR_R == type && proxied_value) {
+ if (Z_TYPE_P(proxied_value) == IS_ARRAY) {
+ zval **hash_value;
+ if (SUCCESS == zend_symtable_find(Z_ARRVAL_P(proxied_value), Z_STRVAL_P(o), Z_STRLEN_P(o), (void *) &hash_value)) {
+ Z_ADDREF_PP(hash_value);
+ value = *hash_value;
+ }
+ }
+ } else {
+ php_property_proxy_t *proxy;
+ php_property_proxy_object_t *proxy_obj;
+
+ if (proxied_value) {
+ convert_to_array(proxied_value);
+ Z_ADDREF_P(proxied_value);
+ } else {
+ MAKE_STD_ZVAL(proxied_value);
+ array_init(proxied_value);
+ set_proxied_value(&object, proxied_value TSRMLS_CC);
+ }
+
+ proxy = php_property_proxy_init(proxied_value, Z_STRVAL_P(o), Z_STRLEN_P(o) TSRMLS_CC);
+ zval_ptr_dtor(&proxied_value);
+ MAKE_STD_ZVAL(value);
+ Z_SET_REFCOUNT_P(value, 0);
+ value->type = IS_OBJECT;
+ value->value.obj = php_property_proxy_object_new_ex(php_property_proxy_get_class_entry(), proxy, &proxy_obj TSRMLS_CC);
+ proxy_obj->parent = zend_object_store_get_object(object TSRMLS_CC);
+ zend_objects_store_add_ref_by_handle(proxy_obj->parent->zv.handle TSRMLS_CC);
+ }
+ if (o && o != offset) {
+ zval_ptr_dtor(&o);
+ }
+
+ debug_propro(-1, type == BP_VAR_R ? "dim_read" : "dim_read_ref", object, offset, value TSRMLS_CC);
+
+ return value;
+}
+
+static int has_dimension(zval *object, zval *offset, int check_empty TSRMLS_DC)
+{
+ zval *proxied_value;
+ int exists = 0;
+
+ debug_propro(1, "dim_exists", object, offset, NULL TSRMLS_CC);
+
+ proxied_value = get_proxied_value(object TSRMLS_CC);
+ if (!proxied_value) {
+ exists = 0;
+ } else {
+ zval *o = offset;
+
+ convert_to_string_ex(&o);
+
+ if (Z_TYPE_P(proxied_value) == IS_ARRAY) {
+ zval **zentry;
+
+ if (SUCCESS != zend_symtable_find(Z_ARRVAL_P(proxied_value), Z_STRVAL_P(o), Z_STRLEN_P(o) + 1, (void *) &zentry)) {
+ exists = 0;
+ } else {
+ if (check_empty) {
+ exists = Z_TYPE_PP(zentry) != IS_NULL;
+ } else {
+ exists = 1;
+ }
+ }
+ }
+
+ if (o != offset) {
+ zval_ptr_dtor(&o);
+ }
+ }
+
+ debug_propro(-1, "dim_exists", object, offset, NULL TSRMLS_CC);
+
+ return exists;
+}
+
+static void write_dimension(zval *object, zval *offset, zval *value TSRMLS_DC)
+{
+ zval *proxied_value, *o = offset;
+
+ debug_propro(1, "dim_write", object, offset, value TSRMLS_CC);
+
+ proxied_value = get_proxied_value(object TSRMLS_CC);
+
+ if (proxied_value) {
+ convert_to_array(proxied_value);
+ Z_ADDREF_P(proxied_value);
+ } else {
+ MAKE_STD_ZVAL(proxied_value);
+ array_init(proxied_value);
+ }
+
+ if (Z_REFCOUNT_P(value) > 1) {
+ SEPARATE_ZVAL(&value);
+ }
+ Z_ADDREF_P(value);
+
+ if (o) {
+ convert_to_string_ex(&o);
+ zend_symtable_update(Z_ARRVAL_P(proxied_value), Z_STRVAL_P(o), Z_STRLEN_P(o) + 1, (void *) &value, sizeof(zval *), NULL);
+ } else {
+ zend_hash_next_index_insert(Z_ARRVAL_P(proxied_value), (void *) &value, sizeof(zval *), NULL);
+ }
+
+ if (o && o != offset) {
+ zval_ptr_dtor(&o);
+ }
+
+ set_proxied_value(&object, proxied_value TSRMLS_CC);
+
+ debug_propro(-1, "dim_write", object, offset, proxied_value TSRMLS_CC);
+
+ zval_ptr_dtor(&proxied_value);
+}
+
+static void unset_dimension(zval *object, zval *offset TSRMLS_DC)
+{
+ zval *proxied_value;
+
+ debug_propro(1, "dim_unset", object, offset, NULL TSRMLS_CC);
+
+ proxied_value = get_proxied_value(object TSRMLS_CC);
+
+ if (proxied_value && Z_TYPE_P(proxied_value) == IS_ARRAY) {
+ zval *o = offset;
+
+ convert_to_string_ex(&o);
+
+ if (SUCCESS == zend_symtable_del(Z_ARRVAL_P(proxied_value), Z_STRVAL_P(o), Z_STRLEN_P(o) + 1)) {
+ set_proxied_value(&object, proxied_value TSRMLS_CC);
+ }
+
+ if (o != offset) {
+ zval_ptr_dtor(&o);
+ }
+ }
+
+ debug_propro(-1, "dim_unset", object, offset, proxied_value TSRMLS_CC);
+}
+
+ZEND_BEGIN_ARG_INFO_EX(ai_propro_construct, 0, 0, 2)
+ ZEND_ARG_INFO(1, object)
+ ZEND_ARG_INFO(0, member)
+ ZEND_ARG_OBJ_INFO(0, parent, php\\PropertyProxy, 1)
+ZEND_END_ARG_INFO();
+static PHP_METHOD(propro, __construct) {
+ zend_error_handling zeh;
+ zval *container, *parent = NULL;
+ char *member_str;
+ int member_len;
+
+ zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
+ if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zs|O!", &container, &member_str, &member_len, &parent, php_property_proxy_class_entry)) {
+ php_property_proxy_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+
+ obj->proxy = php_property_proxy_init(container, member_str, member_len TSRMLS_CC);
+ if (parent) {
+ zend_objects_store_add_ref(parent TSRMLS_CC);
+ obj->parent = zend_object_store_get_object(parent TSRMLS_CC);
+ }
+ }
+ zend_restore_error_handling(&zeh TSRMLS_CC);
+}
+
+static const zend_function_entry php_property_proxy_method_entry[] = {
+ PHP_ME(propro, __construct, ai_propro_construct, ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
+ {0}
+};
+
+static PHP_MINIT_FUNCTION(propro)
+{
+ zend_class_entry ce = {0};
+
+ INIT_NS_CLASS_ENTRY(ce, "php", "PropertyProxy", php_property_proxy_method_entry);
+ php_property_proxy_class_entry = zend_register_internal_class_ex(&ce, NULL, NULL TSRMLS_CC);
+ php_property_proxy_class_entry->create_object = php_property_proxy_object_new;
+ php_property_proxy_class_entry->ce_flags |= ZEND_ACC_FINAL_CLASS;
+
+ memcpy(&php_property_proxy_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
+ php_property_proxy_object_handlers.set = set_proxied_value;
+ php_property_proxy_object_handlers.get = get_proxied_value;
+ php_property_proxy_object_handlers.cast_object = cast_proxied_value;
+ php_property_proxy_object_handlers.read_dimension = read_dimension;
+ php_property_proxy_object_handlers.write_dimension = write_dimension;
+ php_property_proxy_object_handlers.has_dimension = has_dimension;
+ php_property_proxy_object_handlers.unset_dimension = unset_dimension;
+
+ return SUCCESS;
+}
+
+PHP_MINFO_FUNCTION(propro)
+{
+ php_info_print_table_start();
+ php_info_print_table_header(2, "Property proxy support", "enabled");
+ php_info_print_table_row(2, "Extension version", PHP_PROPRO_VERSION);
+ php_info_print_table_end();
+}
+
+static const zend_function_entry propro_functions[] = {
+ {0}
+};
+
+zend_module_entry propro_module_entry = {
+ STANDARD_MODULE_HEADER,
+ "propro",
+ propro_functions,
+ PHP_MINIT(propro),
+ NULL,
+ NULL,
+ NULL,
+ PHP_MINFO(propro),
+ PHP_PROPRO_VERSION,
+ STANDARD_MODULE_PROPERTIES
+};
+
+#ifdef COMPILE_DL_PROPRO
+ZEND_GET_MODULE(propro)
+#endif
+
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: noet sw=4 ts=4 fdm=marker
+ * vim<600: noet sw=4 ts=4
+ */
projects / m6w6 / ext-propro / commitdiff
