optimization code (#3471)

Author: assert6

src/Container.php

@@ -114,8 +114,7 @@ public function get($name)
         if (isset($this->resolvedEntries[$name]) || array_key_exists($name, $this->resolvedEntries)) {
             return $this->resolvedEntries[$name];
         }
-        $this->resolvedEntries[$name] = $value = $this->make($name);
-        return $value;
+        return $this->resolvedEntries[$name] = $this->make($name);
     }
 
     /**

src/Definition/DefinitionSource.php

@@ -18,7 +18,6 @@
 use function is_callable;
 use function is_string;
 use function method_exists;
-use function print_r;
 
 class DefinitionSource implements DefinitionSourceInterface
 {
@@ -37,10 +36,7 @@ public function __construct(array $source)
      */
     public function getDefinition(string $name): ?DefinitionInterface
     {
-        if (! isset($this->source[$name])) {
-            $this->source[$name] = $this->autowire($name);
-        }
-        return $this->source[$name];
+        return $this->source[$name] ?? $this->source[$name] = $this->autowire($name);
     }
 
     /**
@@ -141,9 +137,4 @@ private function autowire(string $name, ObjectDefinition $definition = null): ?O
 
         return $definition;
     }
-
-    private function printLn(string $message): void
-    {
-        print_r($message . PHP_EOL);
-    }
 }

src/Resolver/DepthGuard.php

@@ -68,18 +68,14 @@ public function decrement()
 
     public function call(string $name, callable $callable)
     {
-        $guard = DepthGuard::getInstance();
-
         try {
             $this->increment();
-            $result = $callable();
+            return $callable();
         } catch (CircularDependencyException $exception) {
             $exception->addDefinitionName($name);
             throw $exception;
         } finally {
-            $guard->decrement();
+            $this->decrement();
         }
-
-        return $result;
     }
 }