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vendor/psy/psysh/src/Psy/TabCompletion/Matcher/ClassAttributesMatcher.php

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+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2017 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\TabCompletion\Matcher;
+
+/**
+ * A class attribute tab completion Matcher.
+ *
+ * Given a namespace and class, this matcher provides completion for constants
+ * and static properties.
+ *
+ * @author Marc Garcia <markcial@gmail.com>
+ */
+class ClassAttributesMatcher extends AbstractMatcher
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function getMatches(array $tokens, array $info = array())
+    {
+        $input = $this->getInput($tokens);
+
+        $firstToken = array_pop($tokens);
+        if (self::tokenIs($firstToken, self::T_STRING)) {
+            // second token is the nekudotayim operator
+            array_pop($tokens);
+        }
+
+        $class = $this->getNamespaceAndClass($tokens);
+
+        $reflection = new \ReflectionClass($class);
+        $vars = array_merge(
+            array_map(
+                function ($var) {
+                    return '$' . $var;
+                },
+                array_keys($reflection->getStaticProperties())
+            ),
+            array_keys($reflection->getConstants())
+        );
+
+        return array_map(
+            function ($name) use ($class) {
+                return $class . '::' . $name;
+            },
+            array_filter(
+                $vars,
+                function ($var) use ($input) {
+                    return AbstractMatcher::startsWith($input, $var);
+                }
+            )
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasMatched(array $tokens)
+    {
+        $token = array_pop($tokens);
+        $prevToken = array_pop($tokens);
+
+        switch (true) {
+            case self::tokenIs($prevToken, self::T_DOUBLE_COLON) && self::tokenIs($token, self::T_STRING):
+            case self::tokenIs($token, self::T_DOUBLE_COLON):
+                return true;
+        }
+
+        return false;
+    }
+}