v.0.1

vendor/illuminate/support/Reflector.php

@@ -0,0 +1,102 @@
+<?php
+
+namespace Illuminate\Support;
+
+use ReflectionClass;
+use ReflectionMethod;
+use ReflectionNamedType;
+
+class Reflector
+{
+    /**
+     * This is a PHP 7.4 compatible implementation of is_callable.
+     *
+     * @param  mixed  $var
+     * @param  bool  $syntaxOnly
+     * @return bool
+     */
+    public static function isCallable($var, $syntaxOnly = false)
+    {
+        if (! is_array($var)) {
+            return is_callable($var, $syntaxOnly);
+        }
+
+        if ((! isset($var[0]) || ! isset($var[1])) ||
+            ! is_string($var[1] ?? null)) {
+            return false;
+        }
+
+        if ($syntaxOnly &&
+            (is_string($var[0]) || is_object($var[0])) &&
+            is_string($var[1])) {
+            return true;
+        }
+
+        $class = is_object($var[0]) ? get_class($var[0]) : $var[0];
+
+        $method = $var[1];
+
+        if (! class_exists($class)) {
+            return false;
+        }
+
+        if (method_exists($class, $method)) {
+            return (new ReflectionMethod($class, $method))->isPublic();
+        }
+
+        if (is_object($var[0]) && method_exists($class, '__call')) {
+            return (new ReflectionMethod($class, '__call'))->isPublic();
+        }
+
+        if (! is_object($var[0]) && method_exists($class, '__callStatic')) {
+            return (new ReflectionMethod($class, '__callStatic'))->isPublic();
+        }
+
+        return false;
+    }
+
+    /**
+     * Get the class name of the given parameter's type, if possible.
+     *
+     * @param  \ReflectionParameter  $parameter
+     * @return string|null
+     */
+    public static function getParameterClassName($parameter)
+    {
+        $type = $parameter->getType();
+
+        if (! $type instanceof ReflectionNamedType || $type->isBuiltin()) {
+            return;
+        }
+
+        $name = $type->getName();
+
+        if (! is_null($class = $parameter->getDeclaringClass())) {
+            if ($name === 'self') {
+                return $class->getName();
+            }
+
+            if ($name === 'parent' && $parent = $class->getParentClass()) {
+                return $parent->getName();
+            }
+        }
+
+        return $name;
+    }
+
+    /**
+     * Determine if the parameter's type is a subclass of the given type.
+     *
+     * @param  \ReflectionParameter  $parameter
+     * @param  string  $className
+     * @return bool
+     */
+    public static function isParameterSubclassOf($parameter, $className)
+    {
+        $paramClassName = static::getParameterClassName($parameter);
+
+        return ($paramClassName && class_exists($paramClassName))
+            ? (new ReflectionClass($paramClassName))->isSubclassOf($className)
+            : false;
+    }
+}