ben/sihnon-php-lib
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Updates class autoloader to use class_alias

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Makes Exceptions extend the base classes, rather than the subclasses to
avoid class redefinition errors.
Makes PluginFactories define the interface using the base class rather
than a subclass to avoid class_implements() to fail by testing for a
class not in the hierarchy.
This commit is contained in:
Ben Roberts
2010-10-11 23:04:20 +01:00
parent f592abe15f
commit 6d1705f5a9
4 changed files with 43 additions and 43 deletions
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54
source/lib/SihnonFramework/Main.class.php
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@@ -114,7 +114,7 @@ class SihnonFramework_Main {
// Ensure the class to load begins with our prefix
if (preg_match("/^{$class['base']}_/", $classname)) {
// Special case: all related exceptions are grouped into a single file
if (preg_match("/^({$class['base']}_(?:.*_))Exception/", $classname, $matches = array())) {
if (preg_match("/^({$class['base']}_(?:.*?_)?)Exception/", $classname, $matches)) {
require_once($class['base_dir_prefix'] . preg_replace('/_/', '/', $matches[1]) . 'Exceptions.class.php');
return;
}
@@ -124,7 +124,7 @@ class SihnonFramework_Main {
// If this file exists, load it
if (file_exists($filename)) {
require_once $filename;
require_once(realpath($filename));
return;
}
} elseif ($class['subclass'] && preg_match("/^{$class['subclass']}_/", $classname)) {
@@ -132,9 +132,16 @@ class SihnonFramework_Main {
// If a subclass doesn't exist, create it on the fly
// Special case: all related exceptions are grouped into a single file
if (preg_match("/^({$class['subclass']}_(?:.*_))Exception/", $classname, $matches = array())) {
require_once($class['subclass_dir_prefix'] . preg_replace('/_/', '/', $matches[1]) . 'Exceptions.class.php');
return;
if (preg_match("/^({$class['subclass']}_(?:.*?_)?)Exception/", $classname, $matches)) {
$exceptions_filename = $class['subclass_dir_prefix'] . preg_replace('/_/', '/', $matches[1]) . 'Exceptions.class.php';
if (file_exists($exceptions_filename)) {
require_once($exceptions_filename);
} else {
// Create this class to extend the Framework parent
$parent_classname = preg_replace("/^{$class['subclass']}_/", "{$class['base']}_", $classname);
class_alias($parent_classname, $classname);
return;
}
}
// Replace any underscores with directory separators
@@ -142,32 +149,12 @@ class SihnonFramework_Main {
// If this file exists, load it
if (file_exists($filename)) {
require_once $filename;
require_once(realpath($filename));
return;
} else {
// Create this class to extend the Framework parent
$parent_classname = preg_replace("/^{$class['subclass']}_/", "{$class['base']}_", $classname);
// Determine if the classname represents a class or an interface
$parent_class = new ReflectionClass($parent_classname);
$class_definition = '';
if ($parent_class->isFinal()) {
// Final classes cannot be extended
return;
}
if ($parent_class->isInterface()) {
$class_definition .= 'interface ';
} else {
if ($parent_class->isAbstract()) {
$class_definition .= 'abstract ';
}
$class_definition .= 'class ';
}
$class_definition .= "{$classname} extends {$parent_classname} {};";
eval($class_definition);
class_alias($parent_classname, $classname);
return;
}
}
@@ -190,6 +177,14 @@ class SihnonFramework_Main {
* @param unknown_type $subclass_dir_prefix
*/
public static function registerAutoloadClasses($base, $base_dir_prefix, $subclass = null, $subclass_dir_prefix = null) {
// The paths must end with a trailing slash
if ($base_dir_prefix && $base_dir_prefix[strlen($base_dir_prefix) - 1] != DIRECTORY_SEPARATOR) {
$base_dir_prefix .= DIRECTORY_SEPARATOR;
}
if ($subclass_dir_prefix && $subclass_dir_prefix[strlen($subclass_dir_prefix) - 1] != DIRECTORY_SEPARATOR) {
$subclass_dir_prefix .= DIRECTORY_SEPARATOR;
}
self::$autoload_classes[] = array(
'base' => $base,
'base_dir_prefix' => $base_dir_prefix,
@@ -210,6 +205,11 @@ class SihnonFramework_Main {
}
}
public static function makeAbsolutePath($relative_path) {
$absolute_path = getcwd() . DIRECTORY_SEPARATOR . $relative_path;
return realpath($absolute_path);
}
public static function mkdir_recursive($directory, $permissions=0777) {
$parts = explode('/', $directory);
$path = '';