BetterReflectionSourceLocator - playground mode

Author: ondrejmirtes

conf/config.neon

@@ -257,6 +257,7 @@ parameters:
 	editorUrlTitle: null
 	errorFormat: null
 	sysGetTempDir: ::sys_get_temp_dir()
+	sourceLocatorPlaygroundMode: false
 	pro:
 		dnsServers:
 			- '1.1.1.2'
@@ -2063,6 +2064,7 @@ services:
 			analysedPaths: %analysedPaths%
 			composerAutoloaderProjectPaths: %composerAutoloaderProjectPaths%
 			analysedPathsFromConfig: %analysedPathsFromConfig%
+			playgroundMode: %sourceLocatorPlaygroundMode%
 
 	-
 		implement: PHPStan\Reflection\BetterReflection\BetterReflectionProviderFactory

conf/parametersSchema.neon

@@ -224,6 +224,9 @@ parametersSchema:
 	env: arrayOf(string(), anyOf(int(), string()))
 	sysGetTempDir: string()
 
+	# playground mode
+	sourceLocatorPlaygroundMode: bool()
+
 	# irrelevant Nette parameters
 	debugMode: bool()
 	productionMode: bool()

src/Reflection/BetterReflection/BetterReflectionSourceLocatorFactory.php

@@ -55,6 +55,7 @@ public function __construct(
 		private array $analysedPaths,
 		private array $composerAutoloaderProjectPaths,
 		private array $analysedPathsFromConfig,
+		private bool $playgroundMode, // makes all PHPStan classes in the PHAR discoverable with PSR-4
 	)
 	{
 	}
@@ -112,11 +113,16 @@ public function create(): SourceLocator
 		if (extension_loaded('phar')) {
 			$pharProtocolPath = Phar::running();
 			if ($pharProtocolPath !== '') {
+				$mappings = [
+					'PHPStan\\BetterReflection\\' => [$pharProtocolPath . '/vendor/ondrejmirtes/better-reflection/src/'],
+				];
+				if ($this->playgroundMode) {
+					$mappings['PHPStan\\'] = [$pharProtocolPath . '/src/'];
+				} else {
+					$mappings['PHPStan\\Testing\\'] = [$pharProtocolPath . '/src/Testing/'];
+				}
 				$fileLocators[] = $this->optimizedPsrAutoloaderLocatorFactory->create(
-					Psr4Mapping::fromArrayMappings([
-						'PHPStan\\Testing\\' => [$pharProtocolPath . '/src/Testing/'],
-						'PHPStan\\BetterReflection\\' => [$pharProtocolPath . '/vendor/ondrejmirtes/better-reflection/src/'],
-					]),
+					Psr4Mapping::fromArrayMappings($mappings),
 				);
 			}
 		}