src/Support/ClassLoader.php
public function loadClass($class)
    {
        if (
            isset($this->manifest[$class]) &&
            $this->isRealFilePath($path = $this->manifest[$class])
        ) {
            require_once $this->basePath.DIRECTORY_SEPARATOR.$path;

            return TRUE;
        }

        // Try to load a mapped file for the prefix and relative class
        if ($mappedFile = $this->loadMappedClass($class)) {
            return $mappedFile;
        }

        // never found a mapped file
        return FALSE;
    }
public function loadClass($class)
    {
        if (
            isset($this->manifest[$class]) &&
            $this->isRealFilePath($path = $this->manifest[$class])
        ) {
            require_once $this->basePath.DIRECTORY_SEPARATOR.$path;

            return TRUE;
        }

        // Try to load a mapped file for the prefix and relative class
        if ($mappedFile = $this->loadMappedClass($class)) {
            return $mappedFile;
        }

        // never found a mapped file
        return FALSE;
    }
Loads the class file for a given class name.

@param string $class The fully-qualified class name.

@return mixed The mapped file name on success, or boolean false on
failure.