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1 | <?php |
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2 | declare(strict_types=1); |
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3 | |||
4 | /** |
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5 | * This file is part of phpDocumentor. |
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6 | * |
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7 | * For the full copyright and license information, please view the LICENSE |
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8 | * file that was distributed with this source code. |
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9 | * |
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10 | * @author Mike van Riel <[email protected]> |
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11 | * @copyright 2010-2018 Mike van Riel / Naenius (http://www.naenius.com) |
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12 | * @license http://www.opensource.org/licenses/mit-license.php MIT |
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13 | * @link http://phpdoc.org |
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14 | */ |
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15 | |||
16 | namespace phpDocumentor\Plugin\Scrybe\Converter\RestructuredText\Directives; |
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17 | |||
18 | use \phpDocumentor\Plugin\Scrybe\Converter\RestructuredText\Visitors\Discover; |
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19 | use phpDocumentor\Plugin\Scrybe\Converter\Metadata\Assets; |
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20 | |||
21 | /** |
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22 | * Directive used to process `.. image::` and collect images as assets to be copied. |
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23 | * |
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24 | * The filenames of the images are taken from the directive and added onto the assets collection during the discovery |
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25 | * phase. These assets may then be copied to the destination location by the invoker. |
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26 | * |
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27 | * @see \phpDocumentor\Plugin\Scrybe\Converter\Metadata\Assets |
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28 | */ |
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29 | class Image extends \ezcDocumentRstImageDirective |
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30 | { |
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31 | /** @var Discover The visitor used to discover the images */ |
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32 | protected $visitor; |
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33 | |||
34 | /** |
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35 | * Converts the Image directive to aDocBook image tag. |
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36 | * |
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37 | * This method takes an image directive and converts it into its DocBook representation and stores a reference in |
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38 | * the Asset manager of the Converter. |
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39 | * |
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40 | * @see ConverterInterface::getAssets() for the asset manager |
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41 | */ |
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42 | public function toDocbook(\DOMDocument $document, \DOMElement $root) |
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43 | { |
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44 | $this->storeAsset(); |
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45 | |||
46 | parent::toDocbook($document, $root); |
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47 | } |
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48 | |||
49 | /** |
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50 | * Converts the Image directive to an <img/> tag. |
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51 | * |
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52 | * This method takes an image directive and converts it into its HTML representation and stores a reference in the |
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53 | * Asset manager of the Converter. |
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54 | * |
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55 | * @see ConverterInterface::getAssets() for the asset manager |
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56 | */ |
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57 | public function toXhtml(\DOMDocument $document, \DOMElement $root) |
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58 | { |
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59 | $this->storeAsset(); |
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60 | |||
61 | parent::toXhtml($document, $root); |
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62 | } |
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63 | |||
64 | /** |
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65 | * Stores the asset in the asset manager. |
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66 | * |
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67 | * This method takes an asset defined in the directive and stores that in the asset manager. |
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68 | * |
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69 | * The following rules apply: |
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70 | * |
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71 | * 1. The source of the asset is the relative path of the asset prefixed with a path based on the following rules: |
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72 | * |
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73 | * 1. If the asset starts with a slash then the path is calculated from the project's root or |
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74 | * 2. if the asset does not start with a slash then the path is calculated from the file's directory. |
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75 | * |
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76 | * 2. the destination of the asset is the path relative to the project root. |
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77 | * |
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78 | * 1. When the asset starts with a slash then this equals that path without the leading slash. |
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79 | * 2. If not, the destination must be calculated by subtracting the project root from the current file's path |
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80 | * and prepending that to the asset path (resolving `../` patterns in the mean time). |
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81 | */ |
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82 | protected function storeAsset() |
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83 | { |
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84 | if (!$this->visitor instanceof Discover) { |
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85 | return; |
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86 | } |
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87 | |||
88 | $assets = $this->getAssetManager(); |
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89 | $project_root = $assets->getProjectRoot(); |
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90 | $asset_path = trim($this->node->parameters); |
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91 | $file_path = $this->visitor->getDocument()->getFile()->getRealPath(); |
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92 | |||
93 | // get source path |
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94 | $source = ($asset_path[0] !== '/') |
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95 | ? dirname($file_path) . '/' . $asset_path |
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96 | : $project_root . $asset_path; |
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97 | |||
98 | // get destination path |
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99 | $destination = ($asset_path[0] !== '/') |
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100 | ? substr(dirname($file_path) . '/' . $asset_path, strlen($project_root)) |
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101 | : substr($asset_path, 1); |
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102 | |||
103 | // set asset |
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104 | $assets->set($source, $destination); |
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105 | } |
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106 | |||
107 | /** |
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108 | * Returns the asset manager. |
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109 | * |
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110 | * @return Assets |
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111 | */ |
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112 | protected function getAssetManager() |
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113 | { |
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114 | return $this->visitor->getDocument()->getConverter()->getAssets(); |
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115 | } |
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116 | } |
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117 |
PHP Analyzer performs a side-effects analysis of your code. A side-effect is basically anything that might be visible after the scope of the method is left.
Let’s take a look at an example:
If we look at the
getEmail()
method, we can see that it has no side-effect. Whether you call this method or not, no future calls to other methods are affected by this. As such code as the following is useless:On the hand, if we look at the
setEmail()
, this method _has_ side-effects. In the following case, we could not remove the method call: