winforms-php /
VoidFramework
| Total Complexity | 52 |
| Total Lines | 258 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Interpreter 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 Interpreter, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
||
| 8 | class Interpreter |
||
| 9 | { |
||
| 10 | static array $objects = []; // Массив созданных объектов (название => объект) |
||
| 11 | |||
| 12 | static bool $throw_errors = true; // Выводить ли ошибки интерпретации |
||
| 13 | static bool $allow_multimethods_calls = true; // Можно ли использовать многоуровневые вызовы методов (->method1->method2) |
||
| 14 | |||
| 15 | private static array $imported_styles = []; |
||
| 16 | |||
| 17 | /** |
||
| 18 | * Интерпретирование синтаксического дерева |
||
| 19 | * |
||
| 20 | * @param AST $tree - Абстрактное Синтаксическое Дерево (АСД), сгенерированное VLF Parser'ом |
||
| 21 | * [@param array $parent = null] - нода-родитель дерева (системная настройка) |
||
| 22 | * |
||
| 23 | * @return array - возвращает список созданных объектов |
||
| 24 | */ |
||
| 25 | public static function run (AST $tree, Node $parent = null): array |
||
| 26 | { |
||
| 27 | foreach ($tree->getNodes () as $node) |
||
| 28 | { |
||
| 29 | switch ($node->type) |
||
| 30 | { |
||
| 31 | case OBJECT_DEFINITION: |
||
| 32 | $class = $node->args['class']; |
||
| 33 | $name = $node->args['name']; |
||
| 34 | $args = []; |
||
| 35 | |||
| 36 | if (isset (self::$objects[$name])) |
||
| 37 | break; |
||
| 38 | |||
| 39 | if (isset ($node->args['args'])) |
||
| 40 | { |
||
| 41 | $args = $node->args['args']; |
||
| 42 | |||
| 43 | foreach ($args as $arg_id => $arg) |
||
| 44 | $args[$arg_id] = self::formatLine ($arg, self::$objects); |
||
| 45 | } |
||
| 46 | |||
| 47 | try |
||
| 48 | { |
||
| 49 | self::$objects[$name] = eval ("namespace VoidEngine; return new $class (". implode (', ', $args) .");"); |
||
| 50 | |||
| 51 | try |
||
| 52 | { |
||
| 53 | self::$objects[$name]->name = $name; |
||
| 54 | } |
||
| 55 | |||
| 56 | catch (\Throwable $e) {} |
||
| 57 | } |
||
| 58 | |||
| 59 | catch (\Throwable $e) |
||
| 60 | { |
||
| 61 | if (self::$throw_errors) |
||
| 62 | throw new \Exception ('Interpeter couldn\'t create object "'. $class .'" with name "'. $name .'" at line "'. $node->line .'". Exception info:'. "\n\n". (string) $e, 0, $e); |
||
| 63 | } |
||
| 64 | break; |
||
| 65 | |||
| 66 | case PROPERTY_SET: |
||
| 67 | if ($parent !== null) |
||
| 68 | { |
||
| 69 | $name = $parent->args['name']; |
||
| 70 | |||
| 71 | $propertyName = $node->args['name']; |
||
| 72 | $propertyValue = $node->args['value']; |
||
| 73 | $preset = ''; |
||
| 74 | |||
| 75 | if (preg_match ('/function \((.*)\) use \((.*)\)/', $propertyValue)) |
||
| 76 | { |
||
| 77 | $use = substr ($propertyValue, strpos ($propertyValue, 'use')); |
||
| 78 | $use = $ouse = substr ($use, ($pos = strpos ($use, '(') + 1), strpos ($use, ')') - $pos); |
||
| 79 | $use = explode (' ', $use); |
||
| 80 | |||
| 81 | foreach ($use as $id => $useParam) |
||
| 82 | if (isset (self::$objects[$useParam]) && $use[$id + 1][0] == '$') |
||
| 83 | { |
||
| 84 | $fname = $use[$id + 1]; |
||
| 85 | |||
| 86 | if (substr ($fname, strlen ($fname) - 1) == ',') |
||
| 87 | $fname = substr ($fname, 0, -1); |
||
| 88 | |||
| 89 | $preset .= "$fname = $useParam; "; |
||
| 90 | |||
| 91 | unset ($use[$id]); |
||
| 92 | } |
||
| 93 | |||
| 94 | $preset = self::formatLine ($preset, self::$objects); |
||
| 95 | $propertyValue = self::formatLine (str_replace ($ouse, implode (' ', $use), $propertyValue), self::$objects); |
||
| 96 | } |
||
| 97 | |||
| 98 | else $propertyValue = self::formatLine ($propertyValue, self::$objects); |
||
| 99 | |||
| 100 | try |
||
| 101 | { |
||
| 102 | if (strpos ($propertyName, '->') !== false && self::$allow_multimethods_calls) |
||
| 103 | eval ('namespace VoidEngine; '. $preset .' _c('. self::$objects[$name]->selector .')->'. $propertyName .' = '. $propertyValue .';'); |
||
| 104 | |||
| 105 | else self::$objects[$name]->$propertyName = eval ("namespace VoidEngine; $preset return $propertyValue;"); |
||
| 106 | } |
||
| 107 | |||
| 108 | catch (\Throwable $e) |
||
| 109 | { |
||
| 110 | if (self::$throw_errors) |
||
| 111 | throw new \Exception ('Interpeter couldn\'t set property "'. $propertyName .'" with value "'. $propertyValue .'" at line "'. $node->line .'". Exception info:'. "\n\n". (string) $e, 0, $e); |
||
| 112 | } |
||
| 113 | } |
||
| 114 | |||
| 115 | elseif (self::$throw_errors) |
||
| 116 | throw new \Exception ('Setting property to an non-object at line "'. $node->line); |
||
| 117 | break; |
||
| 118 | |||
| 119 | case METHOD_CALL: |
||
| 120 | if ($parent !== null) |
||
| 121 | { |
||
| 122 | $name = $parent->args['name']; |
||
| 123 | |||
| 124 | $methodName = $node->args['name']; |
||
| 125 | $methodArgs = $node->args['args']; |
||
| 126 | |||
| 127 | foreach ($methodArgs as $arg_id => $arg) |
||
| 128 | $methodArgs[$arg_id] = self::formatLine ($arg, self::$objects); |
||
| 129 | |||
| 130 | try |
||
| 131 | { |
||
| 132 | if (strpos ($methodName, '->') !== false && self::$allow_multimethods_calls) |
||
| 133 | eval ('namespace VoidEngine; _c('. self::$objects[$name]->selector .')->'. $methodName .' ('. implode (', ', $methodArgs) .');'); |
||
| 134 | |||
| 135 | elseif (sizeof ($methodArgs) > 0) |
||
| 136 | self::$objects[$name]->$methodName (...eval ('namespace VoidEngine; return ['. implode (', ', $methodArgs) .'];')); |
||
| 137 | |||
| 138 | else self::$objects[$name]->$methodName (); |
||
| 139 | } |
||
| 140 | |||
| 141 | catch (\Throwable $e) |
||
| 142 | { |
||
| 143 | if (self::$throw_errors) |
||
| 144 | throw new \Exception ('Interpeter couldn\'t call method "'. $methodName .'" with arguments '. json_encode ($methodArgs) .' at line "'. $node->line .'". Exception info:'. "\n\n". (string) $e, 0, $e); |
||
| 145 | } |
||
| 146 | } |
||
| 147 | |||
| 148 | elseif (self::$throw_errors) |
||
| 149 | throw new \Exception ('Calling method to an non-object at line "'. $node->line .'"'); |
||
| 150 | break; |
||
| 151 | |||
| 152 | case STYLES_IMPORTING: |
||
| 153 | foreach ($node->args['imports'] as $style) |
||
| 154 | { |
||
| 155 | $path = eval ('namespace VoidEngine; return '. self::formatLine ($style, self::$objects) .';'); |
||
| 156 | |||
| 157 | if (!file_exists ($path)) |
||
| 158 | { |
||
| 159 | if (self::$throw_errors) |
||
| 160 | throw new \Exception ('Trying to import nonexistent style at line "'. $node->line .'"'); |
||
| 161 | } |
||
| 162 | |||
| 163 | elseif (!isset (self::$imported_styles[$path])) |
||
| 164 | { |
||
| 165 | \VLF\VST\Interpreter::run (\VLF\VST\Parser::parse (file_get_contents ($path))); |
||
| 166 | |||
| 167 | self::$imported_styles[$path] = true; |
||
| 168 | } |
||
| 169 | } |
||
| 170 | break; |
||
| 171 | |||
| 172 | case RUNTIME_EXECUTION: |
||
| 173 | eval (self::formatLine ($node->args['code'], self::$objects)); |
||
| 174 | break; |
||
| 175 | } |
||
| 176 | |||
| 177 | $nodes = $node->getNodes (); |
||
| 178 | |||
| 179 | if ($node->type == OBJECT_DEFINITION) |
||
| 180 | { |
||
| 181 | if (isset (\VLF\VST\Interpreter::$default_styles[$node->args['class']])) |
||
| 182 | $nodes = array_merge ($nodes, \VLF\VST\Interpreter::$default_styles[$node->args['class']]); |
||
| 183 | |||
| 184 | if (isset ($node->args['styles'])) |
||
| 185 | foreach ($node->args['styles'] as $style) |
||
| 186 | if (isset (\VLF\VST\Interpreter::$styles[$style])) |
||
| 187 | $nodes = array_merge ($nodes, \VLF\VST\Interpreter::$styles[$style]); |
||
| 188 | |||
| 189 | elseif (self::$throw_errors) |
||
| 190 | throw new \Exception ('Trying to set undefined style "'. $style .'" to object at line "'. $node->line .'"'); |
||
| 191 | } |
||
| 192 | |||
| 193 | self::$objects = self::run (new AST (array_map ( |
||
| 194 | fn ($node) => $node->export (), $nodes)), $node); |
||
| 195 | } |
||
| 196 | |||
| 197 | return self::$objects; |
||
| 198 | } |
||
| 199 | |||
| 200 | /** |
||
| 201 | * Форматирование строки |
||
| 202 | * |
||
| 203 | * @param string $line - строка для форматирования |
||
| 204 | * [@param array $objects = []] - список объектов, которые будут участвовать в форматировании |
||
| 205 | * |
||
| 206 | * @return string - возвращает форматированную строку |
||
| 207 | */ |
||
| 208 | public static function formatLine (string $line, array $objects = []): string |
||
| 260 | } |
||
| 261 | |||
| 262 | public static function clear (): void |
||
| 268 |
Loading history...