--- /dev/null
+<?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\Command\ListCommand;
+
+use Symfony\Component\Console\Input\InputInterface;
+
+/**
+ * Function Enumerator class.
+ */
+class FunctionEnumerator extends Enumerator
+{
+ /**
+ * {@inheritdoc}
+ */
+ protected function listItems(InputInterface $input, \Reflector $reflector = null, $target = null)
+ {
+ // only list functions when no Reflector is present.
+ //
+ // TODO: make a NamespaceReflector and pass that in for commands like:
+ //
+ // ls --functions Foo
+ //
+ // ... for listing functions in the Foo namespace
+
+ if ($reflector !== null || $target !== null) {
+ return;
+ }
+
+ // only list functions if we are specifically asked
+ if (!$input->getOption('functions')) {
+ return;
+ }
+
+ if ($input->getOption('user')) {
+ $label = 'User Functions';
+ $functions = $this->getFunctions('user');
+ } elseif ($input->getOption('internal')) {
+ $label = 'Internal Functions';
+ $functions = $this->getFunctions('internal');
+ } else {
+ $label = 'Functions';
+ $functions = $this->getFunctions();
+ }
+
+ $functions = $this->prepareFunctions($functions);
+
+ if (empty($functions)) {
+ return;
+ }
+
+ $ret = array();
+ $ret[$label] = $functions;
+
+ return $ret;
+ }
+
+ /**
+ * Get defined functions.
+ *
+ * Optionally limit functions to "user" or "internal" functions.
+ *
+ * @param null|string $type "user" or "internal" (default: both)
+ *
+ * @return array
+ */
+ protected function getFunctions($type = null)
+ {
+ $funcs = get_defined_functions();
+
+ if ($type) {
+ return $funcs[$type];
+ } else {
+ return array_merge($funcs['internal'], $funcs['user']);
+ }
+ }
+
+ /**
+ * Prepare formatted function array.
+ *
+ * @param array $functions
+ *
+ * @return array
+ */
+ protected function prepareFunctions(array $functions)
+ {
+ natcasesort($functions);
+
+ // My kingdom for a generator.
+ $ret = array();
+
+ foreach ($functions as $name) {
+ if ($this->showItem($name)) {
+ $ret[$name] = array(
+ 'name' => $name,
+ 'style' => self::IS_FUNCTION,
+ 'value' => $this->presentSignature($name),
+ );
+ }
+ }
+
+ return $ret;
+ }
+}