Use ??= more

Author: nicolas-grekas

Application.php

@@ -143,13 +143,8 @@ public function run(InputInterface $input = null, OutputInterface $output = null
             @putenv('COLUMNS='.$this->terminal->getWidth());
         }
 
-        if (null === $input) {
-            $input = new ArgvInput();
-        }
-
-        if (null === $output) {
-            $output = new ConsoleOutput();
-        }
+        $input ??= new ArgvInput();
+        $output ??= new ConsoleOutput();
 
         $renderException = function (\Throwable $e) use ($output) {
             if ($output instanceof ConsoleOutputInterface) {

Cursor.php

@@ -183,11 +183,7 @@ public function getCurrentPosition(): array
     {
         static $isTtySupported;
 
-        if (null === $isTtySupported) {
-            $isTtySupported = ('/' === \DIRECTORY_SEPARATOR && stream_isatty(\STDOUT));
-        }
-
-        if (!$isTtySupported) {
+        if (!$isTtySupported ??= '/' === \DIRECTORY_SEPARATOR && stream_isatty(\STDOUT)) {
             return [1, 1];
         }
 

Helper/ProgressIndicator.php

@@ -54,14 +54,8 @@ public function __construct(OutputInterface $output, string $format = null, int
     {
         $this->output = $output;
 
-        if (null === $format) {
-            $format = $this->determineBestFormat();
-        }
-
-        if (null === $indicatorValues) {
-            $indicatorValues = ['-', '\\', '|', '/'];
-        }
-
+        $format ??= $this->determineBestFormat();
+        $indicatorValues ??= ['-', '\\', '|', '/'];
         $indicatorValues = array_values($indicatorValues);
 
         if (2 > \count($indicatorValues)) {

Output/StreamOutput.php

@@ -47,9 +47,7 @@ public function __construct($stream, int $verbosity = self::VERBOSITY_NORMAL, bo
 
         $this->stream = $stream;
 
-        if (null === $decorated) {
-            $decorated = $this->hasColorSupport();
-        }
+        $decorated ??= $this->hasColorSupport();
 
         parent::__construct($verbosity, $decorated, $formatter);
     }