mirror of
https://github.com/danog/psalm.git
synced 2024-12-14 10:17:33 +01:00
806 lines
26 KiB
PHP
806 lines
26 KiB
PHP
<?php
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namespace Psalm\Codebase;
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use Psalm\Codebase;
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use Psalm\Config;
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use Psalm\Provider\FileProvider;
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use Psalm\Provider\FileReferenceProvider;
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use Psalm\Provider\FileStorageProvider;
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use Psalm\Scanner\FileScanner;
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/**
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* @psalm-type IssueData = array{
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* severity: string,
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* line_from: int,
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* line_to: int,
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* type: string,
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* message: string,
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* file_name: string,
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* file_path: string,
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* snippet: string,
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* from: int,
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* to: int,
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* snippet_from: int,
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* snippet_to: int,
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* column_from: int,
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* column_to: int
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* }
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*
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* @psalm-type PoolData = array{
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* classlikes_data:array{
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* 0:array<string, bool>,
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* 1:array<string, bool>,
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* 2:array<string, bool>,
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* 3:array<string, bool>,
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* 4:array<string, bool>,
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* 5:array<string, bool>,
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* 6:array<string, bool>,
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* 7:array<string, \PhpParser\Node\Stmt\Trait_>,
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* 8:array<string, \Psalm\Aliases>,
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* 9:array<string, int>
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* },
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* scanner_data:array{
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* 0:array<string, string>,
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* 1:array<string, string>,
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* 2:array<string, string>,
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* 3:array<string, bool>,
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* 4:array<string, bool>,
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* 5:array<string, string>,
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* 6:array<string, bool>,
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* 7:array<string, bool>,
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* 8:array<string, bool>
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* },
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* issues:array<int, IssueData>,
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* changed_members:array<string, array<string, bool>>,
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* unchanged_signature_members:array<string, array<string, bool>>,
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* diff_map:array<string, array<int, array{0:int, 1:int, 2:int, 3:int}>>,
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* classlike_storage:array<string, \Psalm\Storage\ClassLikeStorage>,
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* file_storage:array<string, \Psalm\Storage\FileStorage>,
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* new_file_content_hashes: array<string, string>
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* }
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*/
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/**
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* @internal
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*
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* Contains methods that aid in the scanning of Psalm's codebase
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*/
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class Scanner
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{
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/**
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* @var Codebase
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*/
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private $codebase;
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/**
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* @var array<string, string>
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*/
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private $classlike_files = [];
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/**
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* @var array<string, bool>
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*/
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private $deep_scanned_classlike_files = [];
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/**
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* @var array<string, string>
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*/
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private $files_to_scan = [];
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/**
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* @var array<string, string>
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*/
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private $classes_to_scan = [];
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/**
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* @var array<string, bool>
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*/
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private $classes_to_deep_scan = [];
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/**
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* @var array<string, string>
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*/
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private $files_to_deep_scan = [];
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/**
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* @var array<string, bool>
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*/
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private $scanned_files = [];
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/**
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* @var array<string, bool>
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*/
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private $store_scan_failure = [];
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/**
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* @var array<string, bool>
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*/
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private $reflected_classlikes_lc = [];
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/**
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* @var Reflection
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*/
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private $reflection;
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/**
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* @var Config
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*/
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private $config;
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/**
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* @var bool
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*/
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private $debug_output;
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/**
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* @var FileStorageProvider
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*/
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private $file_storage_provider;
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/**
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* @var FileProvider
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*/
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private $file_provider;
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/**
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* @var FileReferenceProvider
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*/
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private $file_reference_provider;
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/**
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* @var bool
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*/
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private $is_forked = false;
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/**
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* @param bool $debug_output
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*/
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public function __construct(
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Codebase $codebase,
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Config $config,
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FileStorageProvider $file_storage_provider,
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FileProvider $file_provider,
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Reflection $reflection,
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FileReferenceProvider $file_reference_provider,
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$debug_output
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) {
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$this->codebase = $codebase;
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$this->reflection = $reflection;
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$this->file_provider = $file_provider;
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$this->debug_output = $debug_output;
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$this->file_storage_provider = $file_storage_provider;
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$this->config = $config;
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$this->file_reference_provider = $file_reference_provider;
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}
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/**
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* @param array<string, string> $files_to_scan
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*
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* @return void
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*/
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public function addFilesToShallowScan(array $files_to_scan)
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{
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$this->files_to_scan += $files_to_scan;
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}
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/**
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* @param array<string, string> $files_to_scan
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*
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* @return void
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*/
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public function addFilesToDeepScan(array $files_to_scan)
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{
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$this->files_to_scan += $files_to_scan;
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$this->files_to_deep_scan += $files_to_scan;
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}
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/**
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* @param string $file_path
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*
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* @return void
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*/
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public function addFileToShallowScan($file_path)
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{
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$this->files_to_scan[$file_path] = $file_path;
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}
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/**
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* @param string $file_path
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*
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* @return void
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*/
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public function addFileToDeepScan($file_path)
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{
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$this->files_to_scan[$file_path] = $file_path;
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$this->files_to_deep_scan[$file_path] = $file_path;
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}
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/**
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* @param string $file_path
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*
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* @return void
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*/
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public function removeFile($file_path)
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{
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unset($this->scanned_files[$file_path]);
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}
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/**
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* @param string $fq_classlike_name_lc
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* @return void
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*/
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public function removeClassLike($fq_classlike_name_lc)
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{
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unset($this->classlike_files[$fq_classlike_name_lc]);
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unset($this->deep_scanned_classlike_files[$fq_classlike_name_lc]);
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}
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/**
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* @param string $fq_classlike_name_lc
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* @param string $file_path
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*
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* @return void
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*/
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public function setClassLikeFilePath($fq_classlike_name_lc, $file_path)
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{
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$this->classlike_files[$fq_classlike_name_lc] = $file_path;
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}
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/**
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* @param string $fq_classlike_name_lc
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*
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* @return string
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*/
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public function getClassLikeFilePath($fq_classlike_name_lc)
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{
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if (!isset($this->classlike_files[$fq_classlike_name_lc])) {
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throw new \UnexpectedValueException('Could not find file for ' . $fq_classlike_name_lc);
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}
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return $this->classlike_files[$fq_classlike_name_lc];
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}
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/**
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* @param string $fq_classlike_name
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* @param string|null $referencing_file_path
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* @param bool $analyze_too
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* @param bool $store_failure
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*
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* @return void
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*/
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public function queueClassLikeForScanning(
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$fq_classlike_name,
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$referencing_file_path = null,
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$analyze_too = false,
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$store_failure = true
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) {
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$fq_classlike_name_lc = strtolower($fq_classlike_name);
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// avoid checking classes that we know will just end in failure
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if ($fq_classlike_name_lc === 'null' || substr($fq_classlike_name_lc, -5) === '\null') {
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return;
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}
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if (!isset($this->classlike_files[$fq_classlike_name_lc])
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|| ($analyze_too && !isset($this->deep_scanned_classlike_files[$fq_classlike_name_lc]))
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) {
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if (!isset($this->classes_to_scan[$fq_classlike_name_lc]) || $store_failure) {
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$this->classes_to_scan[$fq_classlike_name_lc] = $fq_classlike_name;
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}
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if ($analyze_too) {
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$this->classes_to_deep_scan[$fq_classlike_name_lc] = true;
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}
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$this->store_scan_failure[$fq_classlike_name] = $store_failure;
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if (PropertyMap::inPropertyMap($fq_classlike_name_lc)) {
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$public_mapped_properties = PropertyMap::getPropertyMap()[$fq_classlike_name_lc];
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foreach ($public_mapped_properties as $public_mapped_property) {
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if (strtolower($public_mapped_property) !== $fq_classlike_name_lc) {
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$property_type = \Psalm\Type::parseString($public_mapped_property);
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$property_type->queueClassLikesForScanning($this->codebase);
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}
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}
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}
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}
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if ($referencing_file_path) {
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$this->file_reference_provider->addFileReferenceToClass($referencing_file_path, $fq_classlike_name_lc);
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}
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}
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/**
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* @return bool
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*/
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public function scanFiles(ClassLikes $classlikes, int $pool_size = 1)
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{
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$has_changes = false;
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while ($this->files_to_scan || $this->classes_to_scan) {
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if ($this->files_to_scan) {
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if ($this->scanFilePaths($pool_size)) {
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$has_changes = true;
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}
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} else {
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$this->convertClassesToFilePaths($classlikes);
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}
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}
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return $has_changes;
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}
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private function scanFilePaths(int $pool_size) : bool
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{
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$filetype_scanners = $this->config->getFiletypeScanners();
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$files_to_scan = array_filter(
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$this->files_to_scan,
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function (string $file_path) : bool {
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return !isset($this->scanned_files[$file_path])
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|| (isset($this->files_to_deep_scan[$file_path]) && !$this->scanned_files[$file_path]);
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}
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);
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$this->files_to_scan = [];
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if (!$files_to_scan) {
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return false;
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}
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$files_to_deep_scan = $this->files_to_deep_scan;
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$scanner_worker =
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/**
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* @param int $_
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* @param string $file_path
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*
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* @return void
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*/
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function ($_, $file_path) use ($filetype_scanners, $files_to_deep_scan) {
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$this->scanFile(
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$file_path,
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$filetype_scanners,
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isset($files_to_deep_scan[$file_path])
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);
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};
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if (!$this->is_forked && $pool_size > 1 && count($files_to_scan) > 512) {
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$pool_size = ceil(min($pool_size, count($files_to_scan) / 256));
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} else {
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$pool_size = 1;
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}
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if ($pool_size > 1) {
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$process_file_paths = [];
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$i = 0;
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foreach ($files_to_scan as $file_path) {
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$process_file_paths[$i % $pool_size][] = $file_path;
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++$i;
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}
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// Run scanning one file at a time, splitting the set of
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// files up among a given number of child processes.
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$pool = new \Psalm\Fork\Pool(
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$process_file_paths,
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/** @return void */
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function () {
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$project_checker = \Psalm\Checker\ProjectChecker::getInstance();
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$statements_provider = $project_checker->codebase->statements_provider;
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$project_checker->codebase->scanner->isForked();
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$project_checker->codebase->file_storage_provider->deleteAll();
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$project_checker->codebase->classlike_storage_provider->deleteAll();
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$statements_provider->resetDiffs();
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},
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$scanner_worker,
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/**
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* @return PoolData
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*/
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function () {
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$project_checker = \Psalm\Checker\ProjectChecker::getInstance();
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$statements_provider = $project_checker->codebase->statements_provider;
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return [
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'classlikes_data' => $project_checker->codebase->classlikes->getThreadData(),
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'scanner_data' => $project_checker->codebase->scanner->getThreadData(),
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'issues' => \Psalm\IssueBuffer::getIssuesData(),
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'changed_members' => $statements_provider->getChangedMembers(),
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'unchanged_signature_members' => $statements_provider->getUnchangedSignatureMembers(),
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'diff_map' => $statements_provider->getDiffMap(),
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'classlike_storage' => $project_checker->classlike_storage_provider->getAll(),
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'file_storage' => $project_checker->file_storage_provider->getAll(),
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'new_file_content_hashes' => $statements_provider->parser_cache_provider
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? $statements_provider->parser_cache_provider->getNewFileContentHashes()
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: [],
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];
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}
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);
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// Wait for all tasks to complete and collect the results.
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/**
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* @var array<int, PoolData>
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*/
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$forked_pool_data = $pool->wait();
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foreach ($forked_pool_data as $pool_data) {
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\Psalm\IssueBuffer::addIssues($pool_data['issues']);
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$this->codebase->statements_provider->addChangedMembers(
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$pool_data['changed_members']
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);
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$this->codebase->statements_provider->addUnchangedSignatureMembers(
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$pool_data['unchanged_signature_members']
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);
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$this->codebase->statements_provider->addDiffMap(
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$pool_data['diff_map']
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);
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$this->codebase->file_storage_provider->addMore($pool_data['file_storage']);
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$this->codebase->classlike_storage_provider->addMore($pool_data['classlike_storage']);
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$this->codebase->classlikes->addThreadData($pool_data['classlikes_data']);
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$this->addThreadData($pool_data['scanner_data']);
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if ($this->codebase->statements_provider->parser_cache_provider) {
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$this->codebase->statements_provider->parser_cache_provider->addNewFileContentHashes(
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$pool_data['new_file_content_hashes']
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);
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}
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}
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if ($pool->didHaveError()) {
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exit(1);
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}
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} else {
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$i = 0;
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foreach ($files_to_scan as $file_path => $_) {
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$scanner_worker($i, $file_path);
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++$i;
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}
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}
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if ($this->codebase->statements_provider->parser_cache_provider) {
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$this->codebase->statements_provider->parser_cache_provider->saveFileContentHashes();
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}
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return true;
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}
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/**
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* @return void
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*/
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private function convertClassesToFilePaths(ClassLikes $classlikes)
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{
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$classes_to_scan = $this->classes_to_scan;
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$this->classes_to_scan = [];
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foreach ($classes_to_scan as $fq_classlike_name) {
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$fq_classlike_name_lc = strtolower($fq_classlike_name);
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if (isset($this->reflected_classlikes_lc[$fq_classlike_name_lc])) {
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continue;
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}
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if ($classlikes->isMissingClassLike($fq_classlike_name_lc)) {
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continue;
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}
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if (!isset($this->classlike_files[$fq_classlike_name_lc])) {
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if ($classlikes->doesClassLikeExist($fq_classlike_name_lc)) {
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if ($this->debug_output) {
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echo 'Using reflection to get metadata for ' . $fq_classlike_name . "\n";
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}
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$reflected_class = new \ReflectionClass($fq_classlike_name);
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$this->reflection->registerClass($reflected_class);
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$this->reflected_classlikes_lc[$fq_classlike_name_lc] = true;
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} elseif ($this->fileExistsForClassLike($classlikes, $fq_classlike_name)) {
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// even though we've checked this above, calling the method invalidates it
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if (isset($this->classlike_files[$fq_classlike_name_lc])) {
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/** @var string */
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$file_path = $this->classlike_files[$fq_classlike_name_lc];
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$this->files_to_scan[$file_path] = $file_path;
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if (isset($this->classes_to_deep_scan[$fq_classlike_name_lc])) {
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unset($this->classes_to_deep_scan[$fq_classlike_name_lc]);
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$this->files_to_deep_scan[$file_path] = $file_path;
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}
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}
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} elseif ($this->store_scan_failure[$fq_classlike_name]) {
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$classlikes->registerMissingClassLike($fq_classlike_name_lc);
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}
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} elseif (isset($this->classes_to_deep_scan[$fq_classlike_name_lc])
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&& !isset($this->deep_scanned_classlike_files[$fq_classlike_name_lc])
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) {
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$file_path = $this->classlike_files[$fq_classlike_name_lc];
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$this->files_to_scan[$file_path] = $file_path;
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unset($this->classes_to_deep_scan[$fq_classlike_name_lc]);
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$this->files_to_deep_scan[$file_path] = $file_path;
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$this->deep_scanned_classlike_files[$fq_classlike_name_lc] = true;
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}
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}
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}
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/**
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* @param string $file_path
|
|
* @param array<string, string> $filetype_scanners
|
|
* @param bool $will_analyze
|
|
*
|
|
* @return FileScanner
|
|
*
|
|
* @psalm-suppress MixedOffset
|
|
*/
|
|
private function scanFile(
|
|
$file_path,
|
|
array $filetype_scanners,
|
|
$will_analyze = false
|
|
) {
|
|
$file_scanner = $this->getScannerForPath($file_path, $filetype_scanners, $will_analyze);
|
|
|
|
if (isset($this->scanned_files[$file_path])
|
|
&& (!$will_analyze || $this->scanned_files[$file_path])
|
|
) {
|
|
throw new \UnexpectedValueException('Should not be rescanning ' . $file_path);
|
|
}
|
|
|
|
$file_contents = $this->file_provider->getContents($file_path);
|
|
|
|
$from_cache = $this->file_storage_provider->has($file_path, $file_contents);
|
|
|
|
if (!$from_cache) {
|
|
$this->file_storage_provider->create($file_path);
|
|
}
|
|
|
|
$this->scanned_files[$file_path] = $will_analyze;
|
|
|
|
$file_storage = $this->file_storage_provider->get($file_path);
|
|
|
|
$file_scanner->scan(
|
|
$this->codebase,
|
|
$file_storage,
|
|
$from_cache,
|
|
$this->debug_output
|
|
);
|
|
|
|
if (!$from_cache) {
|
|
if (!$file_storage->has_visitor_issues && $this->file_storage_provider->cache) {
|
|
$this->file_storage_provider->cache->writeToCache($file_storage, $file_contents);
|
|
}
|
|
} else {
|
|
$this->codebase->statements_provider->setUnchangedFile($file_path);
|
|
|
|
foreach ($file_storage->required_file_paths as $required_file_path) {
|
|
if ($will_analyze) {
|
|
$this->addFileToDeepScan($required_file_path);
|
|
} else {
|
|
$this->addFileToShallowScan($required_file_path);
|
|
}
|
|
}
|
|
|
|
foreach ($file_storage->classlikes_in_file as $fq_classlike_name) {
|
|
$this->codebase->exhumeClassLikeStorage($fq_classlike_name, $file_path);
|
|
}
|
|
|
|
foreach ($file_storage->required_classes as $fq_classlike_name) {
|
|
$this->queueClassLikeForScanning($fq_classlike_name, $file_path, $will_analyze, false);
|
|
}
|
|
|
|
foreach ($file_storage->required_interfaces as $fq_classlike_name) {
|
|
$this->queueClassLikeForScanning($fq_classlike_name, $file_path, false, false);
|
|
}
|
|
|
|
foreach ($file_storage->referenced_classlikes as $fq_classlike_name) {
|
|
$this->queueClassLikeForScanning($fq_classlike_name, $file_path, false, false);
|
|
}
|
|
|
|
if ($this->codebase->register_autoload_files) {
|
|
foreach ($file_storage->functions as $function_storage) {
|
|
$this->codebase->functions->addGlobalFunction($function_storage->cased_name, $function_storage);
|
|
}
|
|
|
|
foreach ($file_storage->constants as $name => $type) {
|
|
$this->codebase->addGlobalConstantType($name, $type);
|
|
}
|
|
}
|
|
}
|
|
|
|
return $file_scanner;
|
|
}
|
|
|
|
/**
|
|
* @param string $file_path
|
|
* @param array<string, string> $filetype_scanners
|
|
* @param bool $will_analyze
|
|
*
|
|
* @return FileScanner
|
|
*/
|
|
private function getScannerForPath(
|
|
$file_path,
|
|
array $filetype_scanners,
|
|
$will_analyze = false
|
|
) {
|
|
$path_parts = explode(DIRECTORY_SEPARATOR, $file_path);
|
|
$file_name_parts = explode('.', array_pop($path_parts));
|
|
$extension = count($file_name_parts) > 1 ? array_pop($file_name_parts) : null;
|
|
|
|
$file_name = $this->config->shortenFileName($file_path);
|
|
|
|
if (isset($filetype_scanners[$extension])) {
|
|
/** @var FileScanner */
|
|
return new $filetype_scanners[$extension]($file_path, $file_name, $will_analyze);
|
|
}
|
|
|
|
return new FileScanner($file_path, $file_name, $will_analyze);
|
|
}
|
|
|
|
/**
|
|
* @return array<string, bool>
|
|
*/
|
|
public function getScannedFiles()
|
|
{
|
|
return $this->scanned_files;
|
|
}
|
|
|
|
/**
|
|
* Checks whether a class exists, and if it does then records what file it's in
|
|
* for later checking
|
|
*
|
|
* @param string $fq_class_name
|
|
*
|
|
* @return bool
|
|
*/
|
|
private function fileExistsForClassLike(ClassLikes $classlikes, $fq_class_name)
|
|
{
|
|
$fq_class_name_lc = strtolower($fq_class_name);
|
|
|
|
if (isset($this->classlike_files[$fq_class_name_lc])) {
|
|
return true;
|
|
}
|
|
|
|
if (isset($this->existing_classlikes_lc[$fq_class_name_lc])) {
|
|
throw new \InvalidArgumentException('Why are you asking about a builtin class?');
|
|
}
|
|
|
|
$composer_file_path = $this->config->getComposerFilePathForClassLike($fq_class_name);
|
|
|
|
if ($composer_file_path && file_exists($composer_file_path)) {
|
|
if ($this->debug_output) {
|
|
echo 'Using composer to locate file for ' . $fq_class_name . "\n";
|
|
}
|
|
|
|
$classlikes->addFullyQualifiedClassLikeName(
|
|
$fq_class_name_lc,
|
|
realpath($composer_file_path)
|
|
);
|
|
|
|
return true;
|
|
}
|
|
|
|
$old_level = error_reporting();
|
|
|
|
if (!$this->debug_output) {
|
|
error_reporting(E_ERROR);
|
|
}
|
|
|
|
try {
|
|
if ($this->debug_output) {
|
|
echo 'Using reflection to locate file for ' . $fq_class_name . "\n";
|
|
}
|
|
|
|
$reflected_class = new \ReflectionClass($fq_class_name);
|
|
} catch (\ReflectionException $e) {
|
|
error_reporting($old_level);
|
|
|
|
// do not cache any results here (as case-sensitive filenames can screw things up)
|
|
|
|
return false;
|
|
}
|
|
|
|
error_reporting($old_level);
|
|
|
|
/** @psalm-suppress MixedMethodCall due to Reflection class weirdness */
|
|
$file_path = (string)$reflected_class->getFileName();
|
|
|
|
// if the file was autoloaded but exists in evaled code only, return false
|
|
if (!file_exists($file_path)) {
|
|
return false;
|
|
}
|
|
|
|
$fq_class_name = $reflected_class->getName();
|
|
$classlikes->addFullyQualifiedClassLikeName($fq_class_name_lc);
|
|
|
|
if ($reflected_class->isInterface()) {
|
|
$classlikes->addFullyQualifiedInterfaceName($fq_class_name, $file_path);
|
|
} elseif ($reflected_class->isTrait()) {
|
|
$classlikes->addFullyQualifiedTraitName($fq_class_name, $file_path);
|
|
} else {
|
|
$classlikes->addFullyQualifiedClassName($fq_class_name, $file_path);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @return array{
|
|
* 0: array<string, string>,
|
|
* 1: array<string, string>,
|
|
* 2: array<string, string>,
|
|
* 3: array<string, bool>,
|
|
* 4: array<string, bool>,
|
|
* 5: array<string, string>,
|
|
* 6: array<string, bool>,
|
|
* 7: array<string, bool>,
|
|
* 8: array<string, bool>
|
|
* }
|
|
*/
|
|
public function getThreadData()
|
|
{
|
|
return [
|
|
$this->files_to_scan,
|
|
$this->files_to_deep_scan,
|
|
$this->classes_to_scan,
|
|
$this->classes_to_deep_scan,
|
|
$this->store_scan_failure,
|
|
$this->classlike_files,
|
|
$this->deep_scanned_classlike_files,
|
|
$this->scanned_files,
|
|
$this->reflected_classlikes_lc
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @param array{
|
|
* 0: array<string, string>,
|
|
* 1: array<string, string>,
|
|
* 2: array<string, string>,
|
|
* 3: array<string, bool>,
|
|
* 4: array<string, bool>,
|
|
* 5: array<string, string>,
|
|
* 6: array<string, bool>,
|
|
* 7: array<string, bool>,
|
|
* 8: array<string, bool>
|
|
* } $thread_data
|
|
*
|
|
* @return void
|
|
*/
|
|
public function addThreadData(array $thread_data)
|
|
{
|
|
list(
|
|
$files_to_scan,
|
|
$files_to_deep_scan,
|
|
$classes_to_scan,
|
|
$classes_to_deep_scan,
|
|
$store_scan_failure,
|
|
$classlike_files,
|
|
$deep_scanned_classlike_files,
|
|
$scanned_files,
|
|
$reflected_classlikes_lc
|
|
) = $thread_data;
|
|
|
|
$this->files_to_scan = array_merge($files_to_scan, $this->files_to_scan);
|
|
$this->files_to_deep_scan = array_merge($files_to_deep_scan, $this->files_to_deep_scan);
|
|
$this->classes_to_scan = array_merge($classes_to_scan, $this->classes_to_scan);
|
|
$this->classes_to_deep_scan = array_merge($classes_to_deep_scan, $this->classes_to_deep_scan);
|
|
$this->store_scan_failure = array_merge($store_scan_failure, $this->store_scan_failure);
|
|
$this->classlike_files = array_merge($classlike_files, $this->classlike_files);
|
|
$this->deep_scanned_classlike_files = array_merge(
|
|
$deep_scanned_classlike_files,
|
|
$this->deep_scanned_classlike_files
|
|
);
|
|
$this->scanned_files = array_merge($scanned_files, $this->scanned_files);
|
|
$this->reflected_classlikes_lc = array_merge($reflected_classlikes_lc, $this->reflected_classlikes_lc);
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function isForked()
|
|
{
|
|
$this->is_forked = true;
|
|
}
|
|
}
|