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1 <?php
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2
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3 /*
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4 * This file is part of Psy Shell.
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5 *
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6 * (c) 2012-2018 Justin Hileman
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7 *
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8 * For the full copyright and license information, please view the LICENSE
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9 * file that was distributed with this source code.
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10 */
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11
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12 namespace Psy\TabCompletion\Matcher;
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13
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14 /**
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15 * A class attribute tab completion Matcher.
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16 *
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17 * Given a namespace and class, this matcher provides completion for constants
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18 * and static properties.
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19 *
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20 * @author Marc Garcia <markcial@gmail.com>
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21 */
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22 class ClassAttributesMatcher extends AbstractMatcher
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23 {
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24 /**
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25 * {@inheritdoc}
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26 */
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27 public function getMatches(array $tokens, array $info = [])
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28 {
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29 $input = $this->getInput($tokens);
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30
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31 $firstToken = \array_pop($tokens);
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32 if (self::tokenIs($firstToken, self::T_STRING)) {
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33 // second token is the nekudotayim operator
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34 \array_pop($tokens);
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35 }
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36
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37 $class = $this->getNamespaceAndClass($tokens);
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38
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39 try {
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40 $reflection = new \ReflectionClass($class);
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41 } catch (\ReflectionException $re) {
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42 return [];
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43 }
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44
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45 $vars = \array_merge(
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46 \array_map(
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47 function ($var) {
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48 return '$' . $var;
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49 },
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50 \array_keys($reflection->getStaticProperties())
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51 ),
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52 \array_keys($reflection->getConstants())
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53 );
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54
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55 return \array_map(
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56 function ($name) use ($class) {
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57 $chunks = \explode('\\', $class);
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58 $className = \array_pop($chunks);
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59
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60 return $className . '::' . $name;
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61 },
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62 \array_filter(
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63 $vars,
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64 function ($var) use ($input) {
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65 return AbstractMatcher::startsWith($input, $var);
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66 }
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67 )
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68 );
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69 }
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70
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71 /**
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72 * {@inheritdoc}
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73 */
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74 public function hasMatched(array $tokens)
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75 {
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76 $token = \array_pop($tokens);
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77 $prevToken = \array_pop($tokens);
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78
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79 switch (true) {
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80 case self::tokenIs($prevToken, self::T_DOUBLE_COLON) && self::tokenIs($token, self::T_STRING):
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81 case self::tokenIs($token, self::T_DOUBLE_COLON):
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82 return true;
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83 }
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84
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85 return false;
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86 }
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87 }
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