Move exception printing utilities from MainLogger to Utils

where they can be useful to other stuff apart from just the logger

src/utils/MainLogger.php

@@ -24,15 +24,10 @@ declare(strict_types=1);
 namespace pocketmine\utils;
 
 use LogLevel;
-use pocketmine\errorhandler\ErrorTypeToStringMap;
 use pocketmine\thread\Thread;
 use pocketmine\thread\Worker;
-use function get_class;
 use function implode;
-use function is_int;
-use function preg_replace;
 use function sprintf;
-use function trim;
 use const PHP_EOL;
 use const PTHREADS_INHERIT_NONE;
 
@@ -137,46 +132,11 @@ class MainLogger extends \AttachableThreadedLogger implements \BufferedLogger{
 	 * @return void
 	 */
 	public function logException(\Throwable $e, $trace = null){
-		if($trace === null){
-			$trace = $e->getTrace();
-		}
-
-		$lines = [self::printExceptionMessage($e)];
-		$lines[] = "--- Stack trace ---";
-		foreach(Utils::printableTrace($trace) as $line){
-			$lines[] = "  " . $line;
-		}
-		for($prev = $e->getPrevious(); $prev !== null; $prev = $prev->getPrevious()){
-			$lines[] = "--- Previous ---";
-			$lines[] = self::printExceptionMessage($prev);
-			foreach(Utils::printableTrace($prev->getTrace()) as $line){
-				$lines[] = "  " . $line;
-			}
-		}
-		$lines[] = "--- End of exception information ---";
-		$this->critical(implode("\n", $lines));
+		$this->critical(implode("\n", Utils::printableExceptionInfo($e, $trace)));
 
 		$this->syncFlushBuffer();
 	}
 
-	private static function printExceptionMessage(\Throwable $e) : string{
-		$errstr = preg_replace('/\s+/', ' ', trim($e->getMessage()));
-
-		$errno = $e->getCode();
-		if(is_int($errno)){
-			try{
-				$errno = ErrorTypeToStringMap::get($errno);
-			}catch(\InvalidArgumentException $ex){
-				//pass
-			}
-		}
-
-		$errfile = Filesystem::cleanPath($e->getFile());
-		$errline = $e->getLine();
-
-		return get_class($e) . ": \"$errstr\" ($errno) in \"$errfile\" at line $errline";
-	}
-
 	public function log($level, $message){
 		switch($level){
 			case LogLevel::EMERGENCY:

src/utils/Utils.php

@@ -28,6 +28,7 @@ declare(strict_types=1);
 namespace pocketmine\utils;
 
 use DaveRandom\CallbackValidator\CallbackType;
+use pocketmine\errorhandler\ErrorTypeToStringMap;
 use Ramsey\Uuid\Uuid;
 use Ramsey\Uuid\UuidInterface;
 use function array_combine;
@@ -46,6 +47,7 @@ use function file;
 use function file_exists;
 use function file_get_contents;
 use function function_exists;
+use function get_class;
 use function get_current_user;
 use function get_loaded_extensions;
 use function getenv;
@@ -53,6 +55,7 @@ use function gettype;
 use function implode;
 use function is_array;
 use function is_bool;
+use function is_int;
 use function is_object;
 use function is_string;
 use function mb_check_encoding;
@@ -384,6 +387,49 @@ final class Utils{
 		return -1;
 	}
 
+	private static function printableExceptionMessage(\Throwable $e) : string{
+		$errstr = preg_replace('/\s+/', ' ', trim($e->getMessage()));
+
+		$errno = $e->getCode();
+		if(is_int($errno)){
+			try{
+				$errno = ErrorTypeToStringMap::get($errno);
+			}catch(\InvalidArgumentException $ex){
+				//pass
+			}
+		}
+
+		$errfile = Filesystem::cleanPath($e->getFile());
+		$errline = $e->getLine();
+
+		return get_class($e) . ": \"$errstr\" ($errno) in \"$errfile\" at line $errline";
+	}
+
+	/**
+	 * @param mixed[] $trace
+	 * @return string[]
+	 */
+	public static function printableExceptionInfo(\Throwable $e, $trace = null) : array{
+		if($trace === null){
+			$trace = $e->getTrace();
+		}
+
+		$lines = [self::printableExceptionMessage($e)];
+		$lines[] = "--- Stack trace ---";
+		foreach(Utils::printableTrace($trace) as $line){
+			$lines[] = "  " . $line;
+		}
+		for($prev = $e->getPrevious(); $prev !== null; $prev = $prev->getPrevious()){
+			$lines[] = "--- Previous ---";
+			$lines[] = self::printableExceptionMessage($prev);
+			foreach(Utils::printableTrace($prev->getTrace()) as $line){
+				$lines[] = "  " . $line;
+			}
+		}
+		$lines[] = "--- End of exception information ---";
+		return $lines;
+	}
+
 	/**
 	 * @param mixed[][] $trace
 	 * @phpstan-param list<array<string, mixed>> $trace

tests/phpstan/configs/check-explicit-mixed-baseline.neon

@@ -180,21 +180,26 @@ parameters:
 			count: 1
 			path: ../../../src/utils/Internet.php
 
-		-
-			message: "#^Part \\$errno \\(mixed\\) of encapsed string cannot be cast to string\\.$#"
-			count: 1
-			path: ../../../src/utils/MainLogger.php
-
 		-
 			message: "#^Parameter \\#1 \\$path of static method pocketmine\\\\utils\\\\Filesystem\\:\\:cleanPath\\(\\) expects string, mixed given\\.$#"
 			count: 1
 			path: ../../../src/utils/Utils.php
 
+		-
+			message: "#^Parameter \\#1 \\$trace of static method pocketmine\\\\utils\\\\Utils\\:\\:printableTrace\\(\\) expects array\\<int, array\\<string, mixed\\>\\>, array given\\.$#"
+			count: 1
+			path: ../../../src/utils/Utils.php
+
 		-
 			message: "#^Parameter \\#2 \\$array of function array_map expects array, mixed given\\.$#"
 			count: 1
 			path: ../../../src/utils/Utils.php
 
+		-
+			message: "#^Part \\$errno \\(mixed\\) of encapsed string cannot be cast to string\\.$#"
+			count: 1
+			path: ../../../src/utils/Utils.php
+
 		-
 			message: "#^Parameter \\#1 \\$keys of function array_fill_keys expects array, mixed given\\.$#"
 			count: 1