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<?php
/**
* Class describing a PHP class within a PECL extension
*
* PHP versions 5
*
* LICENSE: This source file is subject to version 3.0 of the PHP license
* that is available through the world-wide-web at the following URI:
* 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 web, please
* send a note to license@php.net so we can mail you a copy immediately.
*
* @category Tools and Utilities
* @package CodeGen
* @author Hartmut Holzgraefe <hartmut@php.net>
* @copyright 2005 Hartmut Holzgraefe
* @license http://www.php.net/license/3_0.txt PHP License 3.0
* @version CVS: $Id: Class.php,v 1.28 2006/07/08 21:29:49 hholzgra Exp $
* @link http://pear.php.net/package/CodeGen
*/
/**
* includes
*/
require_once "CodeGen/PECL/Element.php";
require_once "CodeGen/PECL/Element/Property.php";
require_once "CodeGen/PECL/Element/ClassConstant.php";
require_once "CodeGen/PECL/Element/Method.php";
require_once "CodeGen/PECL/Element/ObjectInterface.php";
/**
* Class describing a PHP class within a PECL extension
*
* @category Tools and Utilities
* @package CodeGen
* @author Hartmut Holzgraefe <hartmut@php.net>
* @copyright 2005 Hartmut Holzgraefe
* @license http://www.php.net/license/3_0.txt PHP License 3.0
* @version Release: @package_version@
* @link http://pear.php.net/package/CodeGen
*/
class CodeGen_PECL_Element_Class
extends CodeGen_PECL_Element
implements CodeGen_PECL_Element_ObjectInterface
{
/**
* The class name
*
* @var string
*/
protected $name = "unknown";
/**
* class name setter
*
* @param string Classname
*/
function setName($name)
{
if (!self::isName($name)) {
return PEAR::raiseError("'$name' is not a valid class name");
}
$this->name = $name;
return true;
}
/**
* class name getter
*
* @return string Classname
*/
function getName()
{
return $this->name;
}
/**
* A short description
*
* @var string
*/
protected $summary = "";
/**
* Description summary setter
*
* @param string Description summary
*/
function setSummary($text)
{
$this->summary = $text;
return true;
}
/**
* A long description
*
* @var string
*/
protected $description = "";
/**
* Class description setter
*
* @param string Class description
*/
function setDescription($text)
{
$this->description = $text;
return true;
}
/**
* Documentation
*
* TODO: isn't this in Element base class already?
*
* @var string
*/
protected $documentation = "";
/**
* Class documentation setter
*
* @param string Class documentation
*/
function setDocumentation($text) {
$this->documentation = $text;
}
/**
* Extents which class?
*
* @var string
*/
protected $extends = "";
/**
* Set parent class that this class inherits from
*
* @param string parent class name
*/
function setExtends($parent)
{
if (!self::isName($parent)) {
return PEAR::raiseError("'$parent' is not a valid parent class name");
}
$this->extends = $parent;
}
/**
* Implemented Interfaces
*
* @var array
*/
protected $implements = array();
/**
* Add an interface that this class implements
*
* @param string interface name
*/
function addInterface($interface)
{
if (!self::isName($interface)) {
return PEAR::raiseError("'$interface' is not a valid interface name");
}
if (isset($this->implements[$interface])) {
return PEAR::raiseError("interface '$interface' added twice");
}
$this->implements[$interface] = $interface;
}
/**
* Properties
*
* @var array
*/
protected $properties = array();
/**
* Add a class property
*
* @param object a class property object
*/
function addProperty(CodeGen_PECL_Element_Property $property)
{
$name = $property->getName();
if (isset($this->properties[$name])) {
return PEAR::raiseError("property '$name' already exists");
}
$this->properties[$name] = $property;
}
/**
* Constants
*
* @var array
*/
protected $constants = array();
/**
* Add a constant to a class
*
* @param object a class constant object
*/
function addConstant(CodeGen_PECL_Element_ClassConstant $constant)
{
$name = $constant->getName();
if (isset($this->constants[$name])) {
return PEAR::raiseError("constant '$name' already exists");
}
$this->constants[$name] = $constant;
}
/**
* Member Functions
*
* @var array
*/
protected $methods = array();
/**
* Add a method definition to the class
*
* @param object class method object
*/
function addMethod(CodeGen_PECL_Element_Method $method)
{
$name = $method->getName();
if (isset($this->functions[$name])) {
return PEAR::raiseError("method '$name' already exists");
}
$this->methods[$name] = $method;
return true;
}
/**
* Is this an abstract class?
*
* @var bool
*/
protected $isAbstract = false;
/**
* Make class abstract
*/
function isAbstract()
{
$this->isAbstract = true;
}
/**
* Is this class final?
*
* @var bool
*/
protected $isFinal = false;
/**
* Make class final
*/
function isFinal()
{
$this->isFinal = true;
}
/**
* Is this an interface?
*
* @var bool
*/
protected $isInterface = false;
/**
* Make class an interface
*/
function isInterface()
{
// TODO: check for already added non-abstract stuff
$this->isInterface = true;
}
/**
* Class payload data type
*
* @var string C type name class payload data
*/
protected $payloadType = "";
/**
* Payload type setter
*
* @param string
*/
function setPayloadType($type)
{
// TODO check
$this->payloadType = $type;
}
/**
* Payload type getter
*
* @return string
*/
function getPayloadType()
{
return $this->payloadType;
}
/**
* Allocate storage space for payload data?
*
* @var bool
*/
protected $payloadAlloc = true;
/**
* Payload alloc setter
*
* @param string
*/
function setPayloadAlloc($alloc)
{
$this->payloadAlloc = (bool)$alloc;
}
/**
* Payload init code snippet
*
* @param string
*/
protected $payloadCtor = "";
/**
* Payload init code setter
*
* @param string code snippet
*/
function setPayloadCtor($code)
{
$this->payloadCtor = $code;
}
/**
* Payload init code getter
*
* @return string code snippet
*/
function getPayloadCtor($extension)
{
$code = "";
if ($this->payloadAlloc) {
$code.= " payload->data = ({$this->payloadType} *)malloc(sizeof({$this->payloadType}));\n";
}
$code .= $extension->codegen->varblock($this->payloadCtor);
return $code;
}
/**
* Payload dtor code snippet
*
* @param string
*/
protected $payloadDtor = "";
/**
* Payload dtor code setter
*
* @param string code snippet
*/
function setPayloadDtor($code)
{
$this->payloadDtor = $code;
}
/**
* Payload dtor code getter
*
* @return string code snippet
*/
function getPayloadDtor($extension)
{
$code = $extension->codegen->varblock($this->payloadDtor);
if ($this->payloadAlloc) {
$code.= " free(payload->data);\n";
}
return $code;
}
/**
* Create C header entry for clas
*
* @access public
* @param class Extension extension the function is part of
* @return string C header code snippet
*/
function hCode($extension)
{
$code = "";
if ($this->payloadType) {
$upname = strtoupper($this->name);
echo "
typedef struct _php_obj_{$this->name} {
zend_object obj;
{$this->payloadType} *data;
} php_obj_{$this->name};
";
}
foreach ($this->methods as $method) {
$code.= $method->hCode($extension);
}
return $code;
}
/**
* Generate global scope code
*
* @access public
* @return string
*/
function globalCode($extension)
{
$upname = strtoupper($this->name);
ob_start();
echo "/* {{{ Class {$this->name} */\n\n";
echo "static zend_class_entry * {$this->name}_ce_ptr = NULL;\n\n";
echo "/* {{{ Methods */\n\n";
foreach ($this->methods as $method) {
echo $method->cCode($extension);
echo "\n";
}
echo "static zend_function_entry {$this->name}_methods[] = {\n";
foreach ($this->methods as $method) {
echo " ".$method->methodEntry()."\n";
}
echo " { NULL, NULL, NULL }\n";
echo "};\n\n";
echo "/* }}} Methods */\n\n";
if ($this->payloadType) {
echo "
static zend_object_handlers {$this->name}_obj_handlers;
static void {$this->name}_obj_free(void *object TSRMLS_DC)
{
php_obj_{$this->name} *payload = (php_obj_{$this->name} *)object;
{$this->payloadType} *data = payload->data;
".$this->getPayloadDtor($extension)."
efree(object);
}
static zend_object_value {$this->name}_obj_create(zend_class_entry *class_type TSRMLS_DC)
{
php_obj_{$this->name} *payload;
zval *tmp;
zend_object_value retval;
payload = (php_obj_{$this->name} *)emalloc(sizeof(php_obj_{$this->name}));
memset(payload, 0, sizeof(php_obj_{$this->name}));
payload->obj.ce = class_type;
".$this->getPayloadCtor($extension)."
retval.handle = zend_objects_store_put(payload, NULL, (zend_objects_free_object_storage_t) {$this->name}_obj_free, NULL TSRMLS_CC);
retval.handlers = &{$this->name}_obj_handlers;
return retval;
}
";
}
echo "static void class_init_{$this->name}(void)\n{\n";
echo " zend_class_entry ce;\n\n";
echo " INIT_CLASS_ENTRY(ce, \"{$this->name}\", {$this->name}_methods);\n";
if ($this->payloadType) {
echo " ce.create_object = {$this->name}_obj_create;\n";
}
if ($this->extends) {
echo " {$this->name}_ce_ptr = zend_register_internal_class_ex(&ce, NULL, \"{$this->extends}\" TSRMLS_CC);\n";
} else {
echo " {$this->name}_ce_ptr = zend_register_internal_class(&ce);\n";
}
if ($this->payloadType) {
echo " memcpy(&{$this->name}_obj_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));\n";
echo " {$this->name}_obj_handlers.clone_obj = NULL;\n";
}
if ($this->isFinal) {
echo " {$this->name}_ce_ptr->ce_flags |= ZEND_ACC_FINAL_CLASS;\n";
}
if ($this->isAbstract) {
echo " {$this->name}_ce_ptr->ce_flags |= ZEND_ACC_EXPLICIT_ABSTRACT_CLASS;\n";
}
if (!empty($this->properties)) {
echo "\n /* {{{ Property registration */\n\n";
foreach ($this->properties as $property) {
echo $property->minitCode($this->name."_ce_ptr");
}
echo " /* }}} Property registration */\n\n";
}
if (!empty($this->constants)) {
echo "\n";
echo CodeGen_PECL_Element_ClassConstant::minitHeader();
foreach ($this->constants as $constant) {
echo $constant->minitCode($this->name."_ce_ptr");
}
echo CodeGen_PECL_Element_ClassConstant::minitFooter();
}
if (count($this->implements)) {
ob_start();
echo "zend_class_entry **tmp;\n";
$interfaces = array();
foreach ($this->implements as $interface) {
echo sprintf("if (SUCCESS == zend_hash_find(CG(class_table), \"%s\", %d, (void **)&tmp)) {\n",
strtolower($interface), strlen($interface) + 1);
echo " zend_class_implements({$this->name}_ce_ptr TSRMLS_CC, 1, *tmp);\n";
echo "} else {\n";
echo " php_error(E_WARNING, \"Couldn't find interface '$interface' while setting up class '{$this->name}', skipped\");\n";
echo "}\n";
}
echo $extension->codegen->varblock(ob_get_clean());
}
echo "}\n\n";
echo "/* }}} Class {$this->name} */\n\n";
return ob_get_clean();
}
/**
* MINIT code fragment
*
* @access public
* @return string
*/
function minitCode($extension)
{
return "class_init_{$this->name}();\n";
}
/**
* DocBook documentation fragment
*
* @access public
* @return string
*/
function docEntry($base)
{
$xml = "";
return $xml;
}
/**
* Write method test cases
*
* @param object Extension to write tests for
*/
function writeTests(CodeGen_PECL_Extension $extension)
{
foreach ($this->methods as $method) {
$method->writeTest($extension);
}
}
/**
* Return function alias entries for all methods
*
*/
function functionAliasEntries()
{
$code = "";
foreach($this->methods as $method)
{
$code.= $method->functionAliasEntry();
}
return $code;
}
}
?>
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