namespace Illuminate\Filesystem;
use Symfony\Component\Finder\Finder;
// use Finder
class ClassFinder
{
/**
* Find all the class and interface names in a given directory.
*
* @param string $directory
* @return array
*/
public function findClasses($directory)
{// find all class and interface name maybe is too exaggerated
$classes = [];// class listener
foreach (Finder::create()->in($directory)->name(‘*.php‘) as $file) {
$classes[] = $this->findClass($file->getRealPath());
}// check all of this .php files name, if has .class.php ,
return array_filter($classes);// if only on parameter ,then they will delete this value that it is null.
}
/**
* Extract the class name from the file at the given path.
*
* @param string $path
* @return string|null
*/
public function findClass($path)
{// extract means get something from other thing.
// like get class name by file path,
$namespace = null;// set a null namespace
$tokens = token_get_all(file_get_contents($path));// get all string like a php code
foreach ($tokens as $key => $token) {
if ($this->tokenIsNamespace($token)) {// if has namespace
$namespace = $this->getNamespace($key + 2, $tokens);// get it
} elseif ($this->tokenIsClassOrInterface($token)) {// if this class is a interface
return ltrim($namespace.‘\\‘.$this->getClass($key + 2, $tokens), ‘\\‘);// use it self to make ltrim
}
}
}
/**
* Find the namespace in the tokens starting at a given key.
*
* @param int $key
* @param array $tokens
* @return string|null
*/
protected function getNamespace($key, array $tokens)
{// Find the namespace in tokens starting at a given key.
$namespace = null;// a namespace
$tokenCount = count($tokens);// get this array count
for ($i = $key; $i < $tokenCount; $i++) {// if has tokens
if ($this->isPartOfNamespace($tokens[$i])) {// if this is a namespace ,even it is a array
$namespace .= $tokens[$i][1];//
} elseif ($tokens[$i] == ‘;‘) {// if
return $namespace;// null return
}
}
}
/**
* Find the class in the tokens starting at a given key.
*
* @param int $key
* @param array $tokens
* @return string|null
*/
protected function getClass($key, array $tokens)
{
$class = null;
$tokenCount = count($tokens);
for ($i = $key; $i < $tokenCount; $i++) {
if ($this->isPartOfClass($tokens[$i])) {
$class .= $tokens[$i][1];
} elseif ($this->isWhitespace($tokens[$i])) {
return $class;
}
}
}// same too
/**
* Determine if the given token is a namespace keyword.
*
* @param array|string $token
* @return bool
*/
protected function tokenIsNamespace($token)
{
return is_array($token) && $token[0] == T_NAMESPACE;// is a array then check this token[0] is a T_NAMESPACE
}// determine given token is a namespace keyword
/**
* Determine if the given token is a class or interface keyword.
*
* @param array|string $token
* @return bool
*/
protected function tokenIsClassOrInterface($token)
{
return is_array($token) && ($token[0] == T_CLASS || $token[0] == T_INTERFACE);
}//Determine if the given token is a class or interface keyword.
// first this token is array, and the first is a T_CLASS
/**
* Determine if the given token is part of the namespace.
*
* @param array|string $token
* @return bool
*/
protected function isPartOfNamespace($token)
{
return is_array($token) && ($token[0] == T_STRING || $token[0] == T_NS_SEPARATOR);
}// check given token is part of the namesapce.
/**
* Determine if the given token is part of the class.
*
* @param array|string $token
* @return bool
*/
protected function isPartOfClass($token)
{
return is_array($token) && $token[0] == T_STRING;
}// check class
/**
* Determine if the given token is whitespace.
*
* @param array|string $token
* @return bool
*/
protected function isWhitespace($token)
{
return is_array($token) && $token[0] == T_WHITESPACE;
}// check is Whitespace
}
时间： 2024-10-24 23:40:57