public-mirrors
/
composer
mirror of https://github.com/composer/composer
1
0
Fork 0
Code

PSR-4 class loader: Add getters for PSR-4 prefixes. Rename PSR-0 related attributes by appending *Psr0. Add more comments.

pull/2459/head
Andreas Hennings 2013-07-29 13:38:46 +02:00
parent 8142126b16
commit c49a651d81
1 changed files with 60 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

78
src/Composer/Autoload/ClassLoader.php
View File

@ -59,11 +59,21 @@ class ClassLoader
return call_user_func_array('array_merge', $this->prefixesPsr0);
}
public function getPrefixesPsr4()
{
return $this->prefixDirsPsr4;
}
public function getFallbackDirs()
{
return $this->fallbackDirsPsr0;
}
public function getFallbackDirsPsr4()
{
return $this->fallbackDirsPsr4;
}
public function getClassMap()
{
return $this->classMap;
@ -82,9 +92,10 @@ class ClassLoader
}
/**
* Registers a set of classes, merging with any others previously set.
* Registers a set of PSR-4 directories for a given namespace, either
* appending or prepending to the ones previously set for this namespace.
*
* @param string $prefix The classes prefix
* @param string $prefix The namespace, with trailing '\\'.
* @param array|string $paths The location(s) of the classes
* @param bool $prepend Prepend the location(s)
*/
@ -125,9 +136,17 @@ class ClassLoader
}
}
/**
* Registers a set of classes, merging with any others previously set.
*
* @param string $prefix The namespace, with trailing '\\'.
* @param array|string $paths The location(s) of the classes
* @param bool $prepend Prepend the location(s)
*/
public function addPsr4($prefix, $paths, $prepend = false)
{
if (!$prefix) {
// Register directories for the root namespace.
if ($prepend) {
$this->fallbackDirsPsr4 = array_merge(
(array) $paths,
@ -139,24 +158,22 @@ class ClassLoader
(array) $paths
);
}
return;
}
$prefix = rtrim($prefix, '\\');
$prefix = $prefix . '\\';
if (!isset($this->prefixDirsPsr4[$prefix])) {
$this->prefixLengthsPsr4[$prefix[0]][$prefix] = strlen($prefix);
} elseif (!isset($this->prefixDirsPsr4[$prefix])) {
// Register directories for a new namespace.
$length = strlen($prefix);
if ('\\' !== $prefix[$length - 1]) {
throw new \Exception("A non-empty PSR-4 prefix must end with a namespace separator.");
}
$this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
$this->prefixDirsPsr4[$prefix] = (array) $paths;
return;
}
if ($prepend) {
} elseif ($prepend) {
// Prepend directories for an already registered namespace.
$this->prefixDirsPsr4[$prefix] = array_merge(
(array) $paths,
$this->prefixDirsPsr4[$prefix]
);
} else {
// Append directories for an already registered namespace.
$this->prefixDirsPsr4[$prefix] = array_merge(
$this->prefixDirsPsr4[$prefix],
(array) $paths
@ -174,10 +191,29 @@ class ClassLoader
{
if (!$prefix) {
$this->fallbackDirsPsr0 = (array) $paths;
return;
} else {
$this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;
}
}
/**
* Registers a set of PSR-4 directories for a given namespace,
* replacing any others previously set for this namespace.
*
* @param string $prefix The namespace, with trailing slash.
* @param array|string $paths The location(s) of the classes
*/
public function setPsr4($prefix, $paths) {
if (!$prefix) {
$this->fallbackDirsPsr4 = (array) $paths;
} else {
$length = strlen($prefix);
if ('\\' !== $prefix[$length - 1]) {
throw new \Exception("A non-empty PSR-4 prefix must end with a namespace separator.");
}
$this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
$this->prefixDirsPsr4[$prefix] = (array) $paths;
}
$this->prefixesPsr0[substr($prefix, 0, 1)][$prefix] = (array) $paths;
}
/**
@ -248,10 +284,12 @@ class ClassLoader
$class = substr($class, 1);
}
// class map lookup
if (isset($this->classMap[$class])) {
return $this->classMap[$class];
}
// PSR-4 lookup
$logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . '.php';
$first = $class[0];
@ -267,12 +305,14 @@ class ClassLoader
}
}
// PSR-4 fallback dirs
foreach ($this->fallbackDirsPsr4 as $dir) {
if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
return $file;
}
}
// PSR-0 lookup
if (false !== $pos = strrpos($class, '\\')) {
// namespaced class name
$logicalPathPsr0
@ -284,7 +324,6 @@ class ClassLoader
$logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR);
}
$first = $class[0];
if (isset($this->prefixesPsr0[$first])) {
foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
if (0 === strpos($class, $prefix)) {
@ -297,16 +336,19 @@ class ClassLoader
}
}
// PSR-0 fallback dirs
foreach ($this->fallbackDirsPsr0 as $dir) {
if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
return $file;
}
}
// PSR-0 include paths.
if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
return $file;
}
// Remember that this class does not exist.
return $this->classMap[$class] = false;
}
}