<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2020 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 = [])
{
$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);
try {
$reflection = new \ReflectionClass($class);
} catch (\ReflectionException $re) {
return [];
}
$vars = \array_merge(
\array_map(
function ($var) {
return '$' . $var;
},
\array_keys($reflection->getStaticProperties())
),
\array_keys($reflection->getConstants())
);
return \array_map(
function ($name) use ($class) {
$chunks = \explode('\\', $class);
$className = \array_pop($chunks);
return $className . '::' . $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;
}
}