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vendor/psy/psysh/src/Reflection/ReflectionClassConstant.php

@@ -0,0 +1,228 @@
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2018 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\Reflection;
+
+/**
+ * Somehow the standard reflection library didn't include class constants until 7.1.
+ *
+ * ReflectionClassConstant corrects that omission.
+ */
+class ReflectionClassConstant implements \Reflector
+{
+    public $class;
+    public $name;
+    private $value;
+
+    /**
+     * Construct a ReflectionClassConstant object.
+     *
+     * @param string|object $class
+     * @param string        $name
+     */
+    public function __construct($class, $name)
+    {
+        if (!$class instanceof \ReflectionClass) {
+            $class = new \ReflectionClass($class);
+        }
+
+        $this->class = $class;
+        $this->name  = $name;
+
+        $constants = $class->getConstants();
+        if (!\array_key_exists($name, $constants)) {
+            throw new \InvalidArgumentException('Unknown constant: ' . $name);
+        }
+
+        $this->value = $constants[$name];
+    }
+
+    /**
+     * Exports a reflection.
+     *
+     * @param string|object $class
+     * @param string        $name
+     * @param bool          $return pass true to return the export, as opposed to emitting it
+     *
+     * @return null|string
+     */
+    public static function export($class, $name, $return = false)
+    {
+        $refl = new self($class, $name);
+        $value = $refl->getValue();
+
+        $str = \sprintf('Constant [ public %s %s ] { %s }', \gettype($value), $refl->getName(), $value);
+
+        if ($return) {
+            return $str;
+        }
+
+        echo $str . "\n";
+    }
+
+    /**
+     * Gets the declaring class.
+     *
+     * @return \ReflectionClass
+     */
+    public function getDeclaringClass()
+    {
+        $parent = $this->class;
+
+        // Since we don't have real reflection constants, we can't see where
+        // it's actually defined. Let's check for a constant that is also
+        // available on the parent class which has exactly the same value.
+        //
+        // While this isn't _technically_ correct, it's prolly close enough.
+        do {
+            $class  = $parent;
+            $parent = $class->getParentClass();
+        } while ($parent && $parent->hasConstant($this->name) && $parent->getConstant($this->name) === $this->value);
+
+        return $class;
+    }
+
+    /**
+     * Get the constant's docblock.
+     *
+     * @return false
+     */
+    public function getDocComment()
+    {
+        return false;
+    }
+
+    /**
+     * Gets the class constant modifiers.
+     *
+     * Since this is only used for PHP < 7.1, we can just return "public". All
+     * the fancier modifiers are only available on PHP versions which have their
+     * own ReflectionClassConstant class :)
+     *
+     * @return int
+     */
+    public function getModifiers()
+    {
+        return \ReflectionMethod::IS_PUBLIC;
+    }
+
+    /**
+     * Gets the constant name.
+     *
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Gets the value of the constant.
+     *
+     * @return mixed
+     */
+    public function getValue()
+    {
+        return $this->value;
+    }
+
+    /**
+     * Checks if class constant is private.
+     *
+     * @return bool false
+     */
+    public function isPrivate()
+    {
+        return false;
+    }
+
+    /**
+     * Checks if class constant is protected.
+     *
+     * @return bool false
+     */
+    public function isProtected()
+    {
+        return false;
+    }
+
+    /**
+     * Checks if class constant is public.
+     *
+     * @return bool true
+     */
+    public function isPublic()
+    {
+        return true;
+    }
+
+    /**
+     * To string.
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        return $this->getName();
+    }
+
+    /**
+     * Gets the constant's file name.
+     *
+     * Currently returns null, because if it returns a file name the signature
+     * formatter will barf.
+     */
+    public function getFileName()
+    {
+        return;
+        // return $this->class->getFileName();
+    }
+
+    /**
+     * Get the code start line.
+     *
+     * @throws \RuntimeException
+     */
+    public function getStartLine()
+    {
+        throw new \RuntimeException('Not yet implemented because it\'s unclear what I should do here :)');
+    }
+
+    /**
+     * Get the code end line.
+     *
+     * @throws \RuntimeException
+     */
+    public function getEndLine()
+    {
+        return $this->getStartLine();
+    }
+
+    /**
+     * Get a ReflectionClassConstant instance.
+     *
+     * In PHP >= 7.1, this will return a \ReflectionClassConstant from the
+     * standard reflection library. For older PHP, it will return this polyfill.
+     *
+     * @param string|object $class
+     * @param string        $name
+     *
+     * @return ReflectionClassConstant|\ReflectionClassConstant
+     */
+    public static function create($class, $name)
+    {
+        if (\class_exists('\\ReflectionClassConstant')) {
+            return new \ReflectionClassConstant($class, $name);
+        }
+
+        return new self($class, $name);
+    }
+}