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<?php
/**
* The content of this file is copied from composer's src/Composer/Autoload/ClassMapGenerator.php
* the findClasses method was extracted, to prevent using any dependency.
*
* Composer (and thus this file) is distributed under the expat license, and
* ClassMapGenerator.php also contains this notice:
*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* This file is copied from the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* To the extent to wich it makes sense, as the author of the extract:
* Copyright © 2020 Julien Lepiller <julien@lepiller.eu>
*/
/**
* Extract the classes in the given file
*
* @param string $path The file to check
* @throws \RuntimeException
* @return array The found classes
*/
function findClasses($path)
{
$extraTypes = PHP_VERSION_ID < 50400 ? '' : '|trait';
if (defined('HHVM_VERSION') && version_compare(HHVM_VERSION, '3.3', '>=')) {
$extraTypes .= '|enum';
}
// Use @ here instead of Silencer to actively suppress 'unhelpful' output
// @link https://github.com/composer/composer/pull/4886
$contents = @php_strip_whitespace($path);
if (!$contents) {
if (!file_exists($path)) {
$message = 'File at "%s" does not exist, check your classmap definitions';
} elseif (!is_readable($path)) {
$message = 'File at "%s" is not readable, check its permissions';
} elseif ('' === trim(file_get_contents($path))) {
// The input file was really empty and thus contains no classes
return array();
} else {
$message = 'File at "%s" could not be parsed as PHP, it may be binary or corrupted';
}
$error = error_get_last();
if (isset($error['message'])) {
$message .= PHP_EOL . 'The following message may be helpful:' . PHP_EOL . $error['message'];
}
throw new \RuntimeException(sprintf($message, $path));
}
// return early if there is no chance of matching anything in this file
if (!preg_match('{\b(?:class|interface'.$extraTypes.')\s}i', $contents)) {
return array();
}
// strip heredocs/nowdocs
$contents = preg_replace('{<<<[ \t]*([\'"]?)(\w+)\\1(?:\r\n|\n|\r)(?:.*?)(?:\r\n|\n|\r)(?:\s*)\\2(?=\s+|[;,.)])}s', 'null', $contents);
// strip strings
$contents = preg_replace('{"[^"\\\\]*+(\\\\.[^"\\\\]*+)*+"|\'[^\'\\\\]*+(\\\\.[^\'\\\\]*+)*+\'}s', 'null', $contents);
// strip leading non-php code if needed
if (substr($contents, 0, 2) !== '<?') {
$contents = preg_replace('{^.+?<\?}s', '<?', $contents, 1, $replacements);
if ($replacements === 0) {
return array();
}
}
// strip non-php blocks in the file
$contents = preg_replace('{\?>(?:[^<]++|<(?!\?))*+<\?}s', '?><?', $contents);
// strip trailing non-php code if needed
$pos = strrpos($contents, '?>');
if (false !== $pos && false === strpos(substr($contents, $pos), '<?')) {
$contents = substr($contents, 0, $pos);
}
// strip comments if short open tags are in the file
if (preg_match('{(<\?)(?!(php|hh))}i', $contents)) {
$contents = preg_replace('{//.* | /\*(?:[^*]++|\*(?!/))*\*/}x', '', $contents);
}
preg_match_all('{
(?:
\b(?<![\$:>])(?P<type>class|interface'.$extraTypes.') \s++ (?P<name>[a-zA-Z_\x7f-\xff:][a-zA-Z0-9_\x7f-\xff:\-]*+)
| \b(?<![\$:>])(?P<ns>namespace) (?P<nsname>\s++[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+(?:\s*+\\\\\s*+[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+)*+)? \s*+ [\{;]
)
}ix', $contents, $matches);
$classes = array();
$namespace = '';
for ($i = 0, $len = count($matches['type']); $i < $len; $i++) {
if (!empty($matches['ns'][$i])) {
$namespace = str_replace(array(' ', "\t", "\r", "\n"), '', $matches['nsname'][$i]) . '\\';
} else {
$name = $matches['name'][$i];
// skip anon classes extending/implementing
if ($name === 'extends' || $name === 'implements') {
continue;
}
if ($name[0] === ':') {
// This is an XHP class, https://github.com/facebook/xhp
$name = 'xhp'.substr(str_replace(array('-', ':'), array('_', '__'), $name), 1);
} elseif ($matches['type'][$i] === 'enum') {
// In Hack, something like:
// enum Foo: int { HERP = '123'; }
// The regex above captures the colon, which isn't part of
// the class name.
$name = rtrim($name, ':');
}
$classes[] = ltrim($namespace . $name, '\\');
}
}
return $classes;
}
$options = getopt('i:f:', []);
$file = $options["f"];
$input = $options["i"];
$classes = findClasses($file);
foreach($classes as $class) {
echo '$classmap[\''.$class.'\'] = \''.$input.'/'.$file.'\';';
echo "\n";
}
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