mirror of
https://github.com/danog/psalm.git
synced 2024-12-15 02:47:02 +01:00
787 lines
22 KiB
PHP
787 lines
22 KiB
PHP
<?php
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namespace Psalm\Checker;
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use Psalm\Codebase;
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use Psalm\Config;
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use Psalm\Context;
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use Psalm\Provider\ClassLikeStorageCacheProvider;
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use Psalm\Provider\ClassLikeStorageProvider;
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use Psalm\Provider\FileProvider;
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use Psalm\Provider\FileReferenceProvider;
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use Psalm\Provider\FileStorageCacheProvider;
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use Psalm\Provider\FileStorageProvider;
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use Psalm\Provider\ParserCacheProvider;
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use Psalm\Provider\Providers;
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use Psalm\Provider\StatementsProvider;
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use Psalm\Type;
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use RecursiveDirectoryIterator;
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use RecursiveIteratorIterator;
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use Sabre\Event\Loop;
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class ProjectChecker
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{
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/**
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* Cached config
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*
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* @var Config
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*/
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public $config;
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/**
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* @var self
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*/
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public static $instance;
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/**
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* An object representing everything we know about the code
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*
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* @var Codebase
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*/
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public $codebase;
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/** @var FileProvider */
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private $file_provider;
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/** @var FileStorageProvider */
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public $file_storage_provider;
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/** @var ClassLikeStorageProvider */
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public $classlike_storage_provider;
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/** @var ?ParserCacheProvider */
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public $parser_cache_provider;
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/** @var FileReferenceProvider */
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public $file_reference_provider;
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/**
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* Whether or not to use colors in error output
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*
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* @var bool
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*/
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public $use_color;
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/**
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* Whether or not to show snippets in error output
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*
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* @var bool
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*/
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public $show_snippet;
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/**
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* Whether or not to show informational messages
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*
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* @var bool
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*/
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public $show_info;
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/**
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* @var string
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*/
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public $output_format;
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/**
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* @var bool
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*/
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public $debug_output = false;
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/**
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* @var bool
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*/
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public $debug_lines = false;
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/**
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* @var bool
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*/
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public $alter_code = false;
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/**
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* @var bool
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*/
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public $show_issues = true;
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/** @var int */
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public $threads;
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/**
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* Whether or not to infer types from usage. Computationally expensive, so turned off by default
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*
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* @var bool
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*/
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public $infer_types_from_usage = false;
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/**
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* @var array<string,string>
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*/
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public $reports = [];
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/**
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* @var array<string, bool>
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*/
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private $issues_to_fix = [];
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/**
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* @var int
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*/
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public $php_major_version = PHP_MAJOR_VERSION;
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/**
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* @var int
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*/
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public $php_minor_version = PHP_MINOR_VERSION;
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/**
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* @var bool
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*/
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public $dry_run = false;
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/**
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* @var bool
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*/
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public $cache_results = false;
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/**
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* @var bool
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*/
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public $only_replace_php_types_with_non_docblock_types = false;
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const TYPE_CONSOLE = 'console';
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const TYPE_PYLINT = 'pylint';
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const TYPE_JSON = 'json';
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const TYPE_EMACS = 'emacs';
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const TYPE_XML = 'xml';
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const SUPPORTED_OUTPUT_TYPES = [
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self::TYPE_CONSOLE,
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self::TYPE_PYLINT,
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self::TYPE_JSON,
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self::TYPE_EMACS,
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self::TYPE_XML,
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];
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/**
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* @param FileProvider $file_provider
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* @param Providers $cache_provider
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* @param bool $use_color
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* @param bool $show_info
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* @param string $output_format
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* @param int $threads
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* @param bool $debug_output
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* @param string $reports
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* @param bool $show_snippet
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*/
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public function __construct(
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Config $config,
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Providers $providers,
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$use_color = true,
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$show_info = true,
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$output_format = self::TYPE_CONSOLE,
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$threads = 1,
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$debug_output = false,
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$reports = null,
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$show_snippet = true
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) {
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$this->parser_cache_provider = $providers->parser_cache_provider;
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$this->file_provider = $providers->file_provider;
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$this->file_storage_provider = $providers->file_storage_provider;
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$this->classlike_storage_provider = $providers->classlike_storage_provider;
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$this->file_reference_provider = $providers->file_reference_provider;
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$this->use_color = $use_color;
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$this->show_info = $show_info;
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$this->debug_output = $debug_output;
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$this->threads = $threads;
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$this->config = $config;
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$this->show_snippet = $show_snippet;
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$this->codebase = new Codebase(
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$config,
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$providers,
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$debug_output
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);
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if (!in_array($output_format, self::SUPPORTED_OUTPUT_TYPES, true)) {
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throw new \UnexpectedValueException('Unrecognised output format ' . $output_format);
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}
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if ($reports) {
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/**
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* @var array<string,string>
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*/
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$mapping = [
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'.xml' => self::TYPE_XML,
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'.json' => self::TYPE_JSON,
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'.txt' => self::TYPE_EMACS,
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'.emacs' => self::TYPE_EMACS,
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'.pylint' => self::TYPE_PYLINT,
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];
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foreach ($mapping as $extension => $type) {
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if (substr($reports, -strlen($extension)) === $extension) {
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$this->reports[$type] = $reports;
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break;
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}
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}
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if (empty($this->reports)) {
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throw new \UnexpectedValueException('Unrecognised report format ' . $reports);
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}
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}
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$this->output_format = $output_format;
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self::$instance = $this;
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if ($this->parser_cache_provider) {
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$this->parser_cache_provider->use_igbinary = $config->use_igbinary;
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}
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}
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/**
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* @return self
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*/
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public static function getInstance()
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{
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return self::$instance;
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}
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/**
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* @param string $base_dir
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* @param bool $is_diff
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*
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* @return void
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*/
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public function check($base_dir, $is_diff = false)
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{
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$start_checks = (int)microtime(true);
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if (!$base_dir) {
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throw new \InvalidArgumentException('Cannot work with empty base_dir');
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}
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$diff_files = null;
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$deleted_files = null;
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$reference_cache = $this->file_reference_provider->loadReferenceCache();
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if ($is_diff
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&& $reference_cache
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&& $this->parser_cache_provider
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&& $this->parser_cache_provider->canDiffFiles()
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) {
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$deleted_files = $this->file_reference_provider->getDeletedReferencedFiles();
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$diff_files = $deleted_files;
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foreach ($this->config->getProjectDirectories() as $dir_name) {
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$diff_files = array_merge($diff_files, $this->getDiffFilesInDir($dir_name, $this->config));
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}
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}
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if ($this->output_format === self::TYPE_CONSOLE) {
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echo 'Scanning files...' . "\n";
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}
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if ($diff_files === null || $deleted_files === null || count($diff_files) > 200) {
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foreach ($this->config->getProjectDirectories() as $dir_name) {
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$this->checkDirWithConfig($dir_name, $this->config);
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}
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foreach ($this->config->getProjectFiles() as $file_path) {
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$this->codebase->addFilesToAnalyze([$file_path => $file_path]);
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}
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$this->config->initializePlugins($this);
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$this->codebase->scanFiles();
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} else {
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if ($this->debug_output) {
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echo count($diff_files) . ' changed files' . "\n";
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}
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if ($diff_files) {
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$file_list = $this->getReferencedFilesFromDiff($diff_files);
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// strip out deleted files
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$file_list = array_diff($file_list, $deleted_files);
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$this->checkDiffFilesWithConfig($this->config, $file_list);
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$this->config->initializePlugins($this);
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$this->codebase->scanFiles();
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}
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}
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if ($this->output_format === self::TYPE_CONSOLE) {
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echo 'Analyzing files...' . "\n";
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}
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$this->config->visitStubFiles($this->codebase, $this->debug_output);
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$this->codebase->analyzer->analyzeFiles($this, $this->threads, $this->alter_code);
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if ($this->parser_cache_provider) {
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$removed_parser_files = $this->parser_cache_provider->deleteOldParserCaches(
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$is_diff ? $this->parser_cache_provider->getLastGoodRun() : $start_checks
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);
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if ($this->debug_output && $removed_parser_files) {
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echo 'Removed ' . $removed_parser_files . ' old parser caches' . "\n";
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}
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if ($is_diff) {
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$this->parser_cache_provider->touchParserCaches($this->getAllFiles($this->config), $start_checks);
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}
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}
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}
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/**
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* @return void
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*/
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public function checkClassReferences()
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{
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if (!$this->codebase->collect_references) {
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throw new \UnexpectedValueException('Should not be checking references');
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}
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$this->codebase->classlikes->checkClassReferences();
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}
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/**
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* @param string $symbol
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*
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* @return void
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*/
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public function findReferencesTo($symbol)
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{
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$locations_by_files = $this->codebase->findReferencesToSymbol($symbol);
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foreach ($locations_by_files as $locations) {
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$bounds_starts = [];
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foreach ($locations as $location) {
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$snippet = $location->getSnippet();
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$snippet_bounds = $location->getSnippetBounds();
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$selection_bounds = $location->getSelectionBounds();
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if (isset($bounds_starts[$selection_bounds[0]])) {
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continue;
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}
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$bounds_starts[$selection_bounds[0]] = true;
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$selection_start = $selection_bounds[0] - $snippet_bounds[0];
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$selection_length = $selection_bounds[1] - $selection_bounds[0];
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echo $location->file_name . ':' . $location->getLineNumber() . "\n" .
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(
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$this->use_color
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? substr($snippet, 0, $selection_start) .
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"\e[97;42m" . substr($snippet, $selection_start, $selection_length) .
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"\e[0m" . substr($snippet, $selection_length + $selection_start)
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: $snippet
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) . "\n" . "\n";
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}
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}
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}
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/**
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* @param string $dir_name
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*
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* @return void
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*/
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public function checkDir($dir_name)
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{
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$this->file_reference_provider->loadReferenceCache();
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$this->checkDirWithConfig($dir_name, $this->config, true);
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if ($this->output_format === self::TYPE_CONSOLE) {
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echo 'Scanning files...' . "\n";
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}
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$this->config->initializePlugins($this);
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$this->codebase->scanFiles();
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$this->config->visitStubFiles($this->codebase, $this->debug_output);
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if ($this->output_format === self::TYPE_CONSOLE) {
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echo 'Analyzing files...' . "\n";
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}
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$this->codebase->analyzer->analyzeFiles($this, $this->threads, $this->alter_code);
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}
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/**
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* @param string $dir_name
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* @param Config $config
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* @param bool $allow_non_project_files
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*
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* @return void
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*/
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private function checkDirWithConfig($dir_name, Config $config, $allow_non_project_files = false)
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{
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$file_extensions = $config->getFileExtensions();
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/** @var RecursiveDirectoryIterator */
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$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir_name));
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$iterator->rewind();
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$files_to_scan = [];
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while ($iterator->valid()) {
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if (!$iterator->isDot()) {
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$extension = $iterator->getExtension();
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if (in_array($extension, $file_extensions, true)) {
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$file_path = (string)$iterator->getRealPath();
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if ($allow_non_project_files || $config->isInProjectDirs($file_path)) {
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$files_to_scan[$file_path] = $file_path;
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}
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}
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}
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$iterator->next();
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}
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$this->codebase->addFilesToAnalyze($files_to_scan);
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}
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/**
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* @param Config $config
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*
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* @return array<int, string>
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*/
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private function getAllFiles(Config $config)
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{
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$file_extensions = $config->getFileExtensions();
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$file_names = [];
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foreach ($config->getProjectDirectories() as $dir_name) {
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/** @var RecursiveDirectoryIterator */
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$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir_name));
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$iterator->rewind();
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while ($iterator->valid()) {
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if (!$iterator->isDot()) {
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$extension = $iterator->getExtension();
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if (in_array($extension, $file_extensions, true)) {
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$file_names[] = (string)$iterator->getRealPath();
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}
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}
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$iterator->next();
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}
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}
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return $file_names;
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}
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/**
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* @param string $dir_name
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* @param Config $config
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*
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* @return array<string>
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*/
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protected function getDiffFilesInDir($dir_name, Config $config)
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{
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$file_extensions = $config->getFileExtensions();
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if (!$this->parser_cache_provider) {
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throw new \UnexpectedValueException('Parser cache provider cannot be null here');
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}
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/** @var RecursiveDirectoryIterator */
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$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir_name));
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$iterator->rewind();
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$diff_files = [];
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$last_good_run = $this->parser_cache_provider->getLastGoodRun();
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while ($iterator->valid()) {
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if (!$iterator->isDot()) {
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$extension = $iterator->getExtension();
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if (in_array($extension, $file_extensions, true)) {
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$file_path = (string)$iterator->getRealPath();
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if ($config->isInProjectDirs($file_path)) {
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if ($this->file_provider->getModifiedTime($file_path) > $last_good_run) {
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$diff_files[] = $file_path;
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}
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}
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}
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}
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$iterator->next();
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}
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return $diff_files;
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}
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/**
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* @param Config $config
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* @param array<string> $file_list
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*
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* @return void
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*/
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private function checkDiffFilesWithConfig(Config $config, array $file_list = [])
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{
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$files_to_scan = [];
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foreach ($file_list as $file_path) {
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if (!file_exists($file_path)) {
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continue;
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}
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if (!$config->isInProjectDirs($file_path)) {
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if ($this->debug_output) {
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echo 'skipping ' . $file_path . "\n";
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}
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continue;
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}
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$files_to_scan[$file_path] = $file_path;
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}
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$this->codebase->addFilesToAnalyze($files_to_scan);
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}
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/**
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* @param string $file_path
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*
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* @return void
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*/
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public function checkFile($file_path)
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{
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if ($this->debug_output) {
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echo 'Checking ' . $file_path . "\n";
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}
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$this->config->hide_external_errors = $this->config->isInProjectDirs($file_path);
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$this->codebase->addFilesToAnalyze([$file_path => $file_path]);
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$this->file_reference_provider->loadReferenceCache();
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if ($this->output_format === self::TYPE_CONSOLE) {
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echo 'Scanning files...' . "\n";
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}
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$this->config->initializePlugins($this);
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$this->codebase->scanFiles();
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$this->config->visitStubFiles($this->codebase, $this->debug_output);
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if ($this->output_format === self::TYPE_CONSOLE) {
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echo 'Analyzing files...' . "\n";
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}
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$this->codebase->analyzer->analyzeFiles($this, $this->threads, $this->alter_code);
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}
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/**
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* @param string[] $paths_to_check
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* @return void
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*/
|
|
public function checkPaths(array $paths_to_check)
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{
|
|
foreach ($paths_to_check as $path) {
|
|
if ($this->debug_output) {
|
|
echo 'Checking ' . $path . "\n";
|
|
}
|
|
|
|
if (is_dir($path)) {
|
|
$this->checkDirWithConfig($path, $this->config, true);
|
|
} elseif (is_file($path)) {
|
|
$this->codebase->addFilesToAnalyze([$path => $path]);
|
|
$this->config->hide_external_errors = $this->config->isInProjectDirs($path);
|
|
}
|
|
}
|
|
|
|
$this->file_reference_provider->loadReferenceCache();
|
|
|
|
if ($this->output_format === self::TYPE_CONSOLE) {
|
|
echo 'Scanning files...' . "\n";
|
|
}
|
|
|
|
$this->config->initializePlugins($this);
|
|
|
|
$this->codebase->scanFiles();
|
|
|
|
$this->config->visitStubFiles($this->codebase, $this->debug_output);
|
|
|
|
if ($this->output_format === self::TYPE_CONSOLE) {
|
|
echo 'Analyzing files...' . "\n";
|
|
}
|
|
|
|
$this->codebase->analyzer->analyzeFiles($this, $this->threads, $this->alter_code);
|
|
}
|
|
|
|
/**
|
|
* @return Config
|
|
*/
|
|
public function getConfig()
|
|
{
|
|
return $this->config;
|
|
}
|
|
|
|
/**
|
|
* @param array<string> $diff_files
|
|
* @param bool $include_referencing_files
|
|
*
|
|
* @return array<string, string>
|
|
*/
|
|
public function getReferencedFilesFromDiff(array $diff_files, $include_referencing_files = true)
|
|
{
|
|
$all_inherited_files_to_check = $diff_files;
|
|
|
|
while ($diff_files) {
|
|
$diff_file = array_shift($diff_files);
|
|
|
|
$dependent_files = $this->file_reference_provider->getFilesInheritingFromFile($diff_file);
|
|
$new_dependent_files = array_diff($dependent_files, $all_inherited_files_to_check);
|
|
|
|
$all_inherited_files_to_check += $new_dependent_files;
|
|
$diff_files += $new_dependent_files;
|
|
}
|
|
|
|
$all_files_to_check = $all_inherited_files_to_check;
|
|
|
|
if ($include_referencing_files) {
|
|
foreach ($all_inherited_files_to_check as $file_name) {
|
|
$dependent_files = $this->file_reference_provider->getFilesReferencingFile($file_name);
|
|
$all_files_to_check = array_merge($dependent_files, $all_files_to_check);
|
|
}
|
|
}
|
|
|
|
return array_combine($all_files_to_check, $all_files_to_check);
|
|
}
|
|
|
|
/**
|
|
* @param string $file_path
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function fileExists($file_path)
|
|
{
|
|
return $this->file_provider->fileExists($file_path);
|
|
}
|
|
|
|
/**
|
|
* @param int $php_major_version
|
|
* @param int $php_minor_version
|
|
* @param bool $dry_run
|
|
* @param bool $safe_types
|
|
*
|
|
* @return void
|
|
*/
|
|
public function alterCodeAfterCompletion(
|
|
$php_major_version,
|
|
$php_minor_version,
|
|
$dry_run = false,
|
|
$safe_types = false
|
|
) {
|
|
$this->alter_code = true;
|
|
$this->show_issues = false;
|
|
$this->php_major_version = $php_major_version;
|
|
$this->php_minor_version = $php_minor_version;
|
|
$this->dry_run = $dry_run;
|
|
$this->only_replace_php_types_with_non_docblock_types = $safe_types;
|
|
}
|
|
|
|
/**
|
|
* @param array<string, bool> $issues
|
|
*
|
|
* @return void
|
|
*/
|
|
public function setIssuesToFix(array $issues)
|
|
{
|
|
$this->issues_to_fix = $issues;
|
|
}
|
|
|
|
/**
|
|
* @return array<string, bool>
|
|
*
|
|
* @psalm-suppress PossiblyUnusedMethod - need to fix #422
|
|
*/
|
|
public function getIssuesToFix()
|
|
{
|
|
return $this->issues_to_fix;
|
|
}
|
|
|
|
/**
|
|
* @return Codebase
|
|
*/
|
|
public function getCodebase()
|
|
{
|
|
return $this->codebase;
|
|
}
|
|
|
|
/**
|
|
* @param string $fq_class_name
|
|
*
|
|
* @return FileChecker
|
|
*/
|
|
public function getFileCheckerForClassLike($fq_class_name)
|
|
{
|
|
$fq_class_name_lc = strtolower($fq_class_name);
|
|
|
|
$file_path = $this->codebase->scanner->getClassLikeFilePath($fq_class_name_lc);
|
|
|
|
$file_checker = new FileChecker(
|
|
$this,
|
|
$file_path,
|
|
$this->config->shortenFileName($file_path)
|
|
);
|
|
|
|
return $file_checker;
|
|
}
|
|
|
|
/**
|
|
* @param string $original_method_id
|
|
* @param Context $this_context
|
|
*
|
|
* @return void
|
|
*/
|
|
public function getMethodMutations($original_method_id, Context $this_context)
|
|
{
|
|
list($fq_class_name) = explode('::', $original_method_id);
|
|
|
|
$file_checker = $this->getFileCheckerForClassLike($fq_class_name);
|
|
|
|
$appearing_method_id = $this->codebase->methods->getAppearingMethodId($original_method_id);
|
|
|
|
if (!$appearing_method_id) {
|
|
// this can happen for some abstract classes implementing (but not fully) interfaces
|
|
return;
|
|
}
|
|
|
|
list($appearing_fq_class_name) = explode('::', $appearing_method_id);
|
|
|
|
$appearing_class_storage = $this->classlike_storage_provider->get($appearing_fq_class_name);
|
|
|
|
if (!$appearing_class_storage->user_defined) {
|
|
return;
|
|
}
|
|
|
|
if (strtolower($appearing_fq_class_name) !== strtolower($fq_class_name)) {
|
|
$file_checker = $this->getFileCheckerForClassLike($appearing_fq_class_name);
|
|
}
|
|
|
|
$stmts = $this->codebase->getStatementsForFile(
|
|
$file_checker->getFilePath()
|
|
);
|
|
|
|
$file_checker->populateCheckers($stmts);
|
|
|
|
if (!$this_context->self) {
|
|
$this_context->self = $fq_class_name;
|
|
$this_context->vars_in_scope['$this'] = Type::parseString($fq_class_name);
|
|
}
|
|
|
|
$file_checker->getMethodMutations($appearing_method_id, $this_context);
|
|
}
|
|
}
|