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-rw-r--r--lib/composer/composer/ClassLoader.php36
1 files changed, 31 insertions, 5 deletions
diff --git a/lib/composer/composer/ClassLoader.php b/lib/composer/composer/ClassLoader.php
index ac67d302a18..4626994fd4d 100644
--- a/lib/composer/composer/ClassLoader.php
+++ b/lib/composer/composer/ClassLoader.php
@@ -55,6 +55,7 @@ class ClassLoader
private $classMap = array();
private $classMapAuthoritative = false;
private $missingClasses = array();
+ private $apcuPrefix;
public function getPrefixes()
{
@@ -272,6 +273,26 @@ class ClassLoader
}
/**
+ * APCu prefix to use to cache found/not-found classes, if the extension is enabled.
+ *
+ * @param string|null $apcuPrefix
+ */
+ public function setApcuPrefix($apcuPrefix)
+ {
+ $this->apcuPrefix = function_exists('apcu_fetch') && ini_get('apc.enabled') ? $apcuPrefix : null;
+ }
+
+ /**
+ * The APCu prefix in use, or null if APCu caching is not enabled.
+ *
+ * @return string|null
+ */
+ public function getApcuPrefix()
+ {
+ return $this->apcuPrefix;
+ }
+
+ /**
* Registers this instance as an autoloader.
*
* @param bool $prepend Whether to prepend the autoloader or not
@@ -313,11 +334,6 @@ class ClassLoader
*/
public function findFile($class)
{
- // work around for PHP 5.3.0 - 5.3.2 https://bugs.php.net/50731
- if ('\\' == $class[0]) {
- $class = substr($class, 1);
- }
-
// class map lookup
if (isset($this->classMap[$class])) {
return $this->classMap[$class];
@@ -325,6 +341,12 @@ class ClassLoader
if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {
return false;
}
+ if (null !== $this->apcuPrefix) {
+ $file = apcu_fetch($this->apcuPrefix.$class, $hit);
+ if ($hit) {
+ return $file;
+ }
+ }
$file = $this->findFileWithExtension($class, '.php');
@@ -333,6 +355,10 @@ class ClassLoader
$file = $this->findFileWithExtension($class, '.hh');
}
+ if (null !== $this->apcuPrefix) {
+ apcu_add($this->apcuPrefix.$class, $file);
+ }
+
if (false === $file) {
// Remember that this class does not exist.
$this->missingClasses[$class] = true;