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|
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2003 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.0 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: |
| http://www.php.net/license/3_0.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: Marcus Boerger <helly@php.net> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "zend_compile.h"
#include "php_spl.h"
#include "spl_functions.h"
#include "spl_engine.h"
/* {{{ spl_instanciate */
void spl_instanciate(zend_class_entry *pce, zval **object TSRMLS_DC)
{
ALLOC_ZVAL(*object);
object_init_ex(*object, pce);
(*object)->refcount = 1;
(*object)->is_ref = 1; /* check if this can be hold always */
}
/* }}} */
/* {{{ spl_instanciate_arg_ex2 */
int spl_instanciate_arg_ex2(zend_class_entry *pce, zval **retval, zval *arg1, zval *arg2 TSRMLS_DC)
{
zval *object;
spl_instanciate(pce, &object TSRMLS_CC);
retval = &EG(uninitialized_zval_ptr);
spl_call_method(&object, pce, &pce->constructor, pce->constructor->common.function_name, strlen(pce->constructor->common.function_name), retval, 2, arg1, arg2 TSRMLS_CC);
*retval = object;
return 0;
}
/* }}} */
/* {{{ spl_get_zval_ptr_ptr
Remember to call spl_unlock_ptr_ptr when needed */
zval ** spl_get_zval_ptr_ptr(znode *node, temp_variable *Ts TSRMLS_DC)
{
if (node->op_type==IS_VAR) {
return T(node->u.var).var.ptr_ptr;
} else {
return NULL;
}
}
/* }}} */
/* {{{ spl_unlock_zval_ptr_ptr */
void spl_unlock_zval_ptr_ptr(znode *node, temp_variable *Ts TSRMLS_DC)
{
if (node->op_type==IS_VAR) {
if (T(node->u.var).var.ptr_ptr) {
spl_pzval_unlock_func(*T(node->u.var).var.ptr_ptr TSRMLS_CC);
} else if (T(node->u.var).EA.type==IS_STRING_OFFSET) {
spl_pzval_unlock_func(T(node->u.var).EA.data.str_offset.str TSRMLS_CC);
}
}
}
/* }}} */
/* {{{ spl_get_zval_ptr */
zval * spl_get_zval_ptr(znode *node, temp_variable *Ts, zval **should_free TSRMLS_DC)
{
switch (node->op_type) {
case IS_CONST:
*should_free = 0;
return &node->u.constant;
break;
case IS_TMP_VAR:
return *should_free = &T(node->u.var).tmp_var;
break;
case IS_VAR:
if (T(node->u.var).var.ptr) {
spl_pzval_unlock_func(T(node->u.var).var.ptr TSRMLS_CC);
*should_free = 0;
return T(node->u.var).var.ptr;
} else {
*should_free = &T(node->u.var).tmp_var;
switch (T(node->u.var).EA.type) {
case IS_STRING_OFFSET: {
temp_variable *T = &T(node->u.var);
zval *str = T->EA.data.str_offset.str;
if (T->EA.data.str_offset.str->type != IS_STRING
|| (T->EA.data.str_offset.offset<0)
|| (T->EA.data.str_offset.str->value.str.len <= T->EA.data.str_offset.offset)) {
zend_error(E_NOTICE, "Uninitialized string offset: %d", T->EA.data.str_offset.offset);
T->tmp_var.value.str.val = empty_string;
T->tmp_var.value.str.len = 0;
} else {
char c = str->value.str.val[T->EA.data.str_offset.offset];
T->tmp_var.value.str.val = estrndup(&c, 1);
T->tmp_var.value.str.len = 1;
}
spl_pzval_unlock_func(str TSRMLS_CC);
T->tmp_var.refcount=1;
T->tmp_var.is_ref=1;
T->tmp_var.type = IS_STRING;
return &T->tmp_var;
}
break;
}
}
break;
case IS_UNUSED:
*should_free = 0;
return NULL;
break;
EMPTY_SWITCH_DEFAULT_CASE()
}
return NULL;
}
/* }}} */
/* {{{ spl_is_instance_of */
int spl_is_instance_of(zval **obj, zend_class_entry *ce TSRMLS_DC)
{
/* Ensure everything needed is available before checking for the type.
*/
zend_class_entry *instance_ce;
if (obj && (instance_ce = spl_get_class_entry(*obj TSRMLS_CC)) != NULL) {
return instanceof_function(instance_ce, ce TSRMLS_CC);
}
return 0;
}
/* }}} */
/* {{{ spl_implements */
spl_is_a spl_implements(zend_class_entry *ce)
{
register spl_is_a is_a = 0;
register int i = ce->num_interfaces;
register zend_class_entry **pce = ce->interfaces;
while (i--) {
if (*pce == spl_ce_iterator) is_a |= SPL_IS_A_ITERATOR;
else if (*pce == spl_ce_forward) is_a |= SPL_IS_A_FORWARD;
else if (*pce == spl_ce_assoc) is_a |= SPL_IS_A_ASSOC;
else if (*pce == spl_ce_sequence) is_a |= SPL_IS_A_SEQUENCE;
else if (*pce == spl_ce_array_read) is_a |= SPL_IS_A_ARRAY_READ;
else if (*pce == spl_ce_array_access) is_a |= SPL_IS_A_ARRAY_ACCESS;
pce++;
}
return is_a;
}
/* }}} */
/* {{{ spl_call_method */
zval * spl_call_method(zval **object_pp, zend_class_entry *obj_ce, zend_function **fn_proxy, char *function_name, int function_name_len, zval **retval_ptr, int param_count, zval* arg1, zval* arg2 TSRMLS_DC)
{
int result;
zend_fcall_info fci;
zval z_fname;
zval *retval;
zval **params[2];
params[0] = &arg1;
params[1] = &arg2;
fci.size = sizeof(fci);
/*fci.function_table = NULL; will be read form zend_class_entry of object if needed */
fci.object_pp = object_pp;
fci.function_name = &z_fname;
fci.retval_ptr_ptr = retval_ptr ? retval_ptr : &retval;
fci.param_count = param_count;
fci.params = params;
fci.no_separation = 1;
fci.symbol_table = NULL;
if (!fn_proxy && !obj_ce) {
/* no interest in caching and no information already present that is
* needed later inside zend_call_function. */
ZVAL_STRINGL(&z_fname, function_name, function_name_len, 0);
result = zend_call_function(&fci, NULL TSRMLS_CC);
} else {
zend_fcall_info_cache fcic;
fcic.initialized = 1;
if (!obj_ce) {
obj_ce = Z_OBJCE_PP(object_pp);
}
if (!fn_proxy || !*fn_proxy) {
if (zend_hash_find(&obj_ce->function_table, function_name, function_name_len+1, (void **) &fcic.function_handler) == FAILURE) {
/* error at c-level */
zend_error(E_CORE_ERROR, "Couldn't find implementation for method %s::%s\n", obj_ce->name, function_name);
}
if (fn_proxy) {
*fn_proxy = fcic.function_handler;
}
} else {
fcic.function_handler = *fn_proxy;
}
fcic.calling_scope = obj_ce;
fcic.object_pp = object_pp;
result = zend_call_function(&fci, &fcic TSRMLS_CC);
}
if (result == FAILURE) {
/* error at c-level */
if (!obj_ce) {
obj_ce = Z_OBJCE_PP(object_pp);
}
zend_error(E_CORE_ERROR, "Couldn't execute method %s::%s\n", obj_ce->name, function_name);
}
if (!retval_ptr && retval) {
zval_dtor(retval);
FREE_ZVAL(retval);
return NULL;
}
return *retval_ptr;
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: fdm=marker
* vim: noet sw=4 ts=4
*/
|
