archive/php-src
1
0
Fork 0
mirror of https://github.com/php/php-src.git synced 2025-08-16 05:58:45 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

- s/inheritence/inheritance/g

Browse source 
- Added is_subclass_of() function
This commit is contained in:
Andrei Zmievski 1999-12-15 21:26:43 +00:00
parent d8000684bf
commit c9c6446aa1
2 changed files with 45 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

41
Zend/zend_builtin_functions.c
View file

@ -44,6 +44,7 @@ static ZEND_FUNCTION(function_exists);
static ZEND_FUNCTION(leak);
static ZEND_FUNCTION(get_used_files);
static ZEND_FUNCTION(get_imported_files);
static ZEND_FUNCTION(is_subclass_of);
extern unsigned char first_arg_force_ref[];
@ -67,6 +68,7 @@ static zend_function_entry builtin_functions[] = {
ZEND_FE(leak, NULL)
ZEND_FE(get_used_files, NULL)
ZEND_FE(get_imported_files, NULL)
ZEND_FE(is_subclass_of, NULL)
{ NULL, NULL, NULL }
};
@ -393,6 +395,45 @@ ZEND_FUNCTION(get_parent_class)
}
/* }}} */
/* {{{ proto bool is_subclass_of(object object, string class_name)
Returns true if the object is part of hierarchy derived from passed class */
ZEND_FUNCTION(is_subclass_of)
{
zval **obj, **class_name;
char *lcname;
zend_class_entry *parent_ce = NULL;
CLS_FETCH();
if (ARG_COUNT(ht) != 2 || getParametersEx(2, &obj, &class_name)==FAILURE) {
RETURN_FALSE;
}
if ((*obj)->type != IS_OBJECT) {
RETURN_FALSE;
}
parent_ce = (*obj)->value.obj.ce->parent;
if (!parent_ce) {
RETURN_FALSE;
}
convert_to_string_ex(class_name);
lcname = estrndup((*class_name)->value.str.val, (*class_name)->value.str.len);
zend_str_tolower(lcname, (*class_name)->value.str.len);
do {
if (!strcmp(parent_ce->name, lcname)) {
efree(lcname);
RETURN_TRUE;
}
} while (parent_ce->parent
&& zend_hash_find(CG(class_table), parent_ce->parent->name,
parent_ce->parent->name_length+1, (void**)&parent_ce)==SUCCESS);
efree(lcname);
RETURN_FALSE;
}
/* }}} */
/* {{{ proto bool method_exists(object object, string method)
Checks if the class method exists ...
*/