first commit

vendor/php-di/invoker/src/Reflection/CallableReflection.php

@@ -0,0 +1,56 @@
+<?php declare(strict_types=1);
+
+namespace Invoker\Reflection;
+
+use Closure;
+use Invoker\Exception\NotCallableException;
+use ReflectionException;
+use ReflectionFunction;
+use ReflectionFunctionAbstract;
+use ReflectionMethod;
+
+/**
+ * Create a reflection object from a callable or a callable-like.
+ *
+ * @internal
+ */
+class CallableReflection
+{
+    /**
+     * @param callable|array|string $callable Can be a callable or a callable-like.
+     * @throws NotCallableException|ReflectionException
+     */
+    public static function create($callable): ReflectionFunctionAbstract
+    {
+        // Closure
+        if ($callable instanceof Closure) {
+            return new ReflectionFunction($callable);
+        }
+
+        // Array callable
+        if (is_array($callable)) {
+            [$class, $method] = $callable;
+
+            if (! method_exists($class, $method)) {
+                throw NotCallableException::fromInvalidCallable($callable);
+            }
+
+            return new ReflectionMethod($class, $method);
+        }
+
+        // Callable object (i.e. implementing __invoke())
+        if (is_object($callable) && method_exists($callable, '__invoke')) {
+            return new ReflectionMethod($callable, '__invoke');
+        }
+
+        // Standard function
+        if (is_string($callable) && function_exists($callable)) {
+            return new ReflectionFunction($callable);
+        }
+
+        throw new NotCallableException(sprintf(
+            '%s is not a callable',
+            is_string($callable) ? $callable : 'Instance of ' . get_class($callable)
+        ));
+    }
+}