| Total Complexity | 55 |
| Total Lines | 311 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like TextRenderer often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use TextRenderer, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 33 | class TextRenderer extends Renderer |
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| 34 | { |
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| 35 | /** |
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| 36 | * TextRenderer plugins should be instances of Kint\Renderer\Text\Plugin. |
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| 37 | */ |
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| 38 | public static $plugins = array( |
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| 39 | 'blacklist' => 'Kint\\Renderer\\Text\\BlacklistPlugin', |
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| 40 | 'depth_limit' => 'Kint\\Renderer\\Text\\DepthLimitPlugin', |
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| 41 | 'microtime' => 'Kint\\Renderer\\Text\\MicrotimePlugin', |
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| 42 | 'recursion' => 'Kint\\Renderer\\Text\\RecursionPlugin', |
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| 43 | 'trace' => 'Kint\\Renderer\\Text\\TracePlugin', |
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| 44 | ); |
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| 45 | |||
| 46 | /** |
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| 47 | * Parser plugins must be instanceof one of these or |
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| 48 | * it will be removed for performance reasons. |
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| 49 | */ |
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| 50 | public static $parser_plugin_whitelist = array( |
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| 51 | 'Kint\\Parser\\BlacklistPlugin', |
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| 52 | 'Kint\\Parser\\MicrotimePlugin', |
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| 53 | 'Kint\\Parser\\StreamPlugin', |
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| 54 | 'Kint\\Parser\\TracePlugin', |
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| 55 | ); |
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| 56 | |||
| 57 | /** |
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| 58 | * The maximum length of a string before it is truncated. |
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| 59 | * |
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| 60 | * Falsey to disable |
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| 61 | * |
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| 62 | * @var int |
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| 63 | */ |
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| 64 | public static $strlen_max = 0; |
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| 65 | |||
| 66 | /** |
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| 67 | * The default width of the terminal for headers. |
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| 68 | * |
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| 69 | * @var int |
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| 70 | */ |
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| 71 | public static $default_width = 80; |
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| 72 | |||
| 73 | /** |
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| 74 | * Indentation width. |
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| 75 | * |
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| 76 | * @var int |
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| 77 | */ |
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| 78 | public static $default_indent = 4; |
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| 79 | |||
| 80 | /** |
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| 81 | * Decorate the header and footer. |
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| 82 | * |
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| 83 | * @var bool |
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| 84 | */ |
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| 85 | public static $decorations = true; |
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| 86 | |||
| 87 | /** |
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| 88 | * Sort mode for object properties. |
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| 89 | * |
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| 90 | * @var int |
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| 91 | */ |
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| 92 | public static $sort = self::SORT_NONE; |
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| 93 | |||
| 94 | public $header_width = 80; |
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| 95 | public $indent_width = 4; |
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| 96 | |||
| 97 | protected $plugin_objs = array(); |
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| 98 | |||
| 99 | public function __construct() |
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| 100 | { |
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| 101 | $this->header_width = self::$default_width; |
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| 102 | $this->indent_width = self::$default_indent; |
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| 103 | } |
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| 104 | |||
| 105 | public function render(BasicObject $o) |
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| 106 | { |
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| 107 | if ($plugin = $this->getPlugin(self::$plugins, $o->hints)) { |
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| 108 | if (\strlen($output = $plugin->render($o))) { |
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| 109 | return $output; |
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| 110 | } |
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| 111 | } |
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| 112 | |||
| 113 | $out = ''; |
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| 114 | |||
| 115 | if (0 == $o->depth) { |
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| 116 | $out .= $this->colorTitle($this->renderTitle($o)).PHP_EOL; |
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| 117 | } |
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| 118 | |||
| 119 | $out .= $this->renderHeader($o); |
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| 120 | $out .= $this->renderChildren($o).PHP_EOL; |
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| 121 | |||
| 122 | return $out; |
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| 123 | } |
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| 124 | |||
| 125 | public function renderNothing() |
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| 126 | { |
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| 127 | if (self::$decorations) { |
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| 128 | return $this->colorTitle( |
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| 129 | $this->boxText('No argument', $this->header_width) |
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| 130 | ).PHP_EOL; |
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| 131 | } |
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| 132 | |||
| 133 | return $this->colorTitle('No argument').PHP_EOL; |
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| 134 | } |
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| 135 | |||
| 136 | public function boxText($text, $width) |
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| 137 | { |
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| 138 | $out = '┌'.\str_repeat('─', $width - 2).'┐'.PHP_EOL; |
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| 139 | |||
| 140 | if (\strlen($text)) { |
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| 141 | $text = Utils::truncateString($text, $width - 4); |
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| 142 | $text = \str_pad($text, $width - 4); |
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| 143 | |||
| 144 | $out .= '│ '.$this->escape($text).' │'.PHP_EOL; |
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| 145 | } |
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| 146 | |||
| 147 | $out .= '└'.\str_repeat('─', $width - 2).'┘'; |
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| 148 | |||
| 149 | return $out; |
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| 150 | } |
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| 151 | |||
| 152 | public function renderTitle(BasicObject $o) |
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| 153 | { |
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| 154 | $name = (string) $o->getName(); |
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| 155 | |||
| 156 | if (self::$decorations) { |
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| 157 | return $this->boxText($name, $this->header_width); |
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| 158 | } |
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| 159 | |||
| 160 | return Utils::truncateString($name, $this->header_width); |
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| 161 | } |
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| 162 | |||
| 163 | public function renderHeader(BasicObject $o) |
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| 164 | { |
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| 165 | $output = array(); |
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| 166 | |||
| 167 | if ($o->depth) { |
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| 168 | if (null !== ($s = $o->getModifiers())) { |
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| 169 | $output[] = $s; |
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| 170 | } |
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| 171 | |||
| 172 | if (null !== $o->name) { |
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| 173 | $output[] = $this->escape(\var_export($o->name, true)); |
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| 174 | |||
| 175 | if (null !== ($s = $o->getOperator())) { |
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| 176 | $output[] = $this->escape($s); |
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| 177 | } |
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| 178 | } |
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| 179 | } |
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| 180 | |||
| 181 | if (null !== ($s = $o->getType())) { |
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| 182 | if ($o->reference) { |
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| 183 | $s = '&'.$s; |
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| 184 | } |
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| 185 | |||
| 186 | $output[] = $this->colorType($this->escape($s)); |
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| 187 | } |
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| 188 | |||
| 189 | if (null !== ($s = $o->getSize())) { |
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| 190 | $output[] = '('.$this->escape($s).')'; |
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| 191 | } |
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| 192 | |||
| 193 | if (null !== ($s = $o->getValueShort())) { |
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| 194 | if (self::$strlen_max) { |
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| 195 | $s = Utils::truncateString($s, self::$strlen_max); |
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| 196 | } |
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| 197 | $output[] = $this->colorValue($this->escape($s)); |
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| 198 | } |
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| 199 | |||
| 200 | return \str_repeat(' ', $o->depth * $this->indent_width).\implode(' ', $output); |
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| 201 | } |
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| 202 | |||
| 203 | public function renderChildren(BasicObject $o) |
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| 204 | { |
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| 205 | if ('array' === $o->type) { |
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| 206 | $output = ' ['; |
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| 207 | } elseif ('object' === $o->type) { |
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| 208 | $output = ' ('; |
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| 209 | } else { |
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| 210 | return ''; |
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| 211 | } |
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| 212 | |||
| 213 | $children = ''; |
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| 214 | |||
| 215 | if ($o->value && \is_array($o->value->contents)) { |
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| 216 | if ($o instanceof InstanceObject && 'properties' === $o->value->getName()) { |
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| 217 | foreach (self::sortProperties($o->value->contents, self::$sort) as $obj) { |
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| 218 | $children .= $this->render($obj); |
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| 219 | } |
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| 220 | } else { |
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| 221 | foreach ($o->value->contents as $child) { |
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| 222 | $children .= $this->render($child); |
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| 223 | } |
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| 224 | } |
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| 225 | } |
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| 226 | |||
| 227 | if ($children) { |
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| 228 | $output .= PHP_EOL.$children; |
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| 229 | $output .= \str_repeat(' ', $o->depth * $this->indent_width); |
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| 230 | } |
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| 231 | |||
| 232 | if ('array' === $o->type) { |
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| 233 | $output .= ']'; |
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| 234 | } else { |
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| 235 | $output .= ')'; |
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| 236 | } |
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| 237 | |||
| 238 | return $output; |
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| 239 | } |
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| 240 | |||
| 241 | public function colorValue($string) |
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| 242 | { |
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| 243 | return $string; |
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| 244 | } |
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| 245 | |||
| 246 | public function colorType($string) |
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| 247 | { |
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| 248 | return $string; |
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| 249 | } |
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| 250 | |||
| 251 | public function colorTitle($string) |
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| 252 | { |
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| 253 | return $string; |
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| 254 | } |
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| 255 | |||
| 256 | public function postRender() |
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| 257 | { |
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| 258 | if (self::$decorations) { |
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| 259 | $output = \str_repeat('═', $this->header_width); |
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| 260 | } else { |
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| 261 | $output = ''; |
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| 262 | } |
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| 263 | |||
| 264 | if (!$this->show_trace) { |
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| 265 | return $this->colorTitle($output); |
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| 266 | } |
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| 267 | |||
| 268 | if ($output) { |
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| 269 | $output .= PHP_EOL; |
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| 270 | } |
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| 271 | |||
| 272 | return $this->colorTitle($output.$this->calledFrom().PHP_EOL); |
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| 273 | } |
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| 274 | |||
| 275 | public function filterParserPlugins(array $plugins) |
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| 276 | { |
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| 277 | $return = array(); |
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| 278 | |||
| 279 | foreach ($plugins as $index => $plugin) { |
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| 280 | foreach (self::$parser_plugin_whitelist as $whitelist) { |
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| 281 | if ($plugin instanceof $whitelist) { |
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| 282 | $return[] = $plugin; |
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| 283 | continue 2; |
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| 284 | } |
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| 285 | } |
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| 286 | } |
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| 287 | |||
| 288 | return $return; |
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| 289 | } |
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| 290 | |||
| 291 | public function ideLink($file, $line) |
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| 294 | } |
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| 295 | |||
| 296 | public function escape($string, $encoding = false) |
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| 297 | { |
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| 299 | } |
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| 300 | |||
| 301 | protected function calledFrom() |
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| 302 | { |
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| 303 | $output = ''; |
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| 304 | |||
| 305 | if (isset($this->call_info['callee']['file'])) { |
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| 332 | } |
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| 333 | |||
| 334 | protected function getPlugin(array $plugins, array $hints) |
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| 344 | } |
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| 345 | } |
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| 347 |
This check looks for parameters that have been defined for a function or method, but which are not used in the method body.