zordius /
lightncandy
Complex classes like Validator 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. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
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 Validator, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 31 | class Validator { |
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| 32 | /** |
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| 33 | * Verify template |
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| 34 | * |
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| 35 | * @param array<string,array|string|integer> $context Current context |
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| 36 | * @param string $template handlebars template |
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| 37 | */ |
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| 38 | 729 | public static function verify(&$context, $template) { |
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| 39 | 729 | $template = SafeString::stripExtendedComments($template); |
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| 40 | 729 | $context['level'] = 0; |
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| 41 | 729 | Parser::setDelimiter($context); |
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| 42 | |||
| 43 | 729 | while (preg_match($context['tokens']['search'], $template, $matches)) { |
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| 44 | // Skip a token when it is slash escaped |
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| 45 | 718 | if ($context['flags']['slash'] && ($matches[Token::POS_LSPACE] === '') && preg_match('/^(.*?)(\\\\+)$/s', $matches[Token::POS_LOTHER], $escmatch)) { |
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| 46 | 4 | if (strlen($escmatch[2]) % 4) { |
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| 47 | 2 | static::pushToken($context, substr($matches[Token::POS_LOTHER], 0, -2) . $context['tokens']['startchar']); |
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| 48 | 2 | $matches[Token::POS_BEGINTAG] = substr($matches[Token::POS_BEGINTAG], 1); |
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| 49 | 2 | $template = implode('', array_slice($matches, Token::POS_BEGINTAG)); |
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| 50 | 2 | continue; |
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| 51 | } else { |
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| 52 | 2 | $matches[Token::POS_LOTHER] = $escmatch[1] . str_repeat('\\', strlen($escmatch[2]) / 2); |
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| 53 | } |
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| 54 | } |
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| 55 | 716 | $context['tokens']['count']++; |
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| 56 | 716 | $V = static::token($matches, $context); |
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| 57 | 716 | static::pushLeft($context); |
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| 58 | 716 | if ($V) { |
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| 59 | 677 | if (is_array($V)) { |
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| 60 | 670 | array_push($V, $matches, $context['tokens']['partialind']); |
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| 61 | } |
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| 62 | 677 | static::pushToken($context, $V); |
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| 63 | } |
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| 64 | 716 | $template = "{$matches[Token::POS_RSPACE]}{$matches[Token::POS_ROTHER]}"; |
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| 65 | } |
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| 66 | 729 | static::pushToken($context, $template); |
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| 67 | |||
| 68 | 729 | if ($context['level'] > 0) { |
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| 69 | 6 | array_pop($context['stack']); |
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| 70 | 6 | array_pop($context['stack']); |
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| 71 | 6 | $token = array_pop($context['stack']); |
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| 72 | 6 | $context['error'][] = 'Unclosed token ' . ($context['rawblock'] ? "{{{{{$token}}}}}" : "{{#{$token}}}") . ' !!'; |
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| 73 | } |
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| 74 | 729 | } |
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| 75 | |||
| 76 | /** |
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| 77 | * push left string of current token and clear it |
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| 78 | * |
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| 79 | * @param array<string,array|string|integer> $context Current context |
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| 80 | */ |
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| 81 | 716 | protected static function pushLeft(&$context) { |
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| 85 | |||
| 86 | /** |
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| 87 | * push a token into the stack when it is not empty string |
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| 88 | * |
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| 89 | * @param array<string,array|string|integer> $context Current context |
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| 90 | * @param string|array $token a parsed token or a string |
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| 91 | */ |
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| 92 | 729 | protected static function pushToken(&$context, $token) { |
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| 104 | |||
| 105 | /** |
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| 106 | * push current token into the section stack |
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| 107 | * |
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| 108 | * @param array<string,array|string|integer> $context Current context |
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| 109 | * @param string $operation operation string |
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| 110 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 111 | */ |
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| 112 | 355 | protected static function pushStack(&$context, $operation, $vars) { |
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| 119 | |||
| 120 | /** |
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| 121 | * Verify delimiters and operators |
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| 122 | * |
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| 123 | * @param string[] $token detected handlebars {{ }} token |
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| 124 | * @param array<string,array|string|integer> $context current compile context |
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| 125 | * |
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| 126 | * @return boolean|null Return true when invalid |
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| 127 | * |
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| 128 | * @expect null when input array_fill(0, 11, ''), array() |
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| 129 | * @expect null when input array(0, 0, 0, 0, 0, '{{', '#', '...', '}}'), array() |
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| 130 | * @expect true when input array(0, 0, 0, 0, 0, '{', '#', '...', '}'), array() |
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| 131 | */ |
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| 132 | 717 | protected static function delimiter($token, &$context) { |
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| 144 | |||
| 145 | /** |
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| 146 | * Verify operators |
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| 147 | * |
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| 148 | * @param string $operator the operator string |
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| 149 | * @param array<string,array|string|integer> $context current compile context |
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| 150 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 151 | * |
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| 152 | * @return boolean|integer|null Return true when invalid or detected |
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1 ignored issue
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| 153 | * |
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| 154 | * @expect null when input '', array(), array() |
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| 155 | * @expect 2 when input '^', array('usedFeature' => array('isec' => 1), 'level' => 0, 'currentToken' => array(0,0,0,0,0,0,0,0), 'flags' => array('spvar' => 0), 'helperresolver' => 0), array(array('foo')) |
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| 156 | * @expect true when input '/', array('stack' => array('[with]', '#'), 'level' => 1, 'currentToken' => array(0,0,0,0,0,0,0,'with'), 'flags' => array('nohbh' => 0)), array(array()) |
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| 157 | * @expect 4 when input '#', array('usedFeature' => array('sec' => 3), 'level' => 0, 'currentToken' => array(0,0,0,0,0,0,0,0), 'flags' => array('spvar' => 0), 'elseif' => false, 'elselvl' => array(), 'helperresolver' => 0), array(array('x')) |
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| 158 | * @expect 5 when input '#', array('usedFeature' => array('if' => 4), 'level' => 0, 'currentToken' => array(0,0,0,0,0,0,0,0), 'flags' => array('spvar' => 0, 'nohbh' => 0), 'elseif' => false, 'elselvl' => array(), 'helperresolver' => 0), array(array('if')) |
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| 159 | * @expect 6 when input '#', array('usedFeature' => array('with' => 5), 'level' => 0, 'flags' => array('nohbh' => 0, 'runpart' => 0, 'spvar' => 0), 'currentToken' => array(0,0,0,0,0,0,0,0), 'elseif' => false, 'elselvl' => array(), 'helperresolver' => 0), array(array('with')) |
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| 160 | * @expect 7 when input '#', array('usedFeature' => array('each' => 6), 'level' => 0, 'currentToken' => array(0,0,0,0,0,0,0,0), 'flags' => array('spvar' => 0, 'nohbh' => 0), 'elseif' => false, 'elselvl' => array(), 'helperresolver' => 0), array(array('each')) |
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| 161 | * @expect 8 when input '#', array('usedFeature' => array('unless' => 7), 'level' => 0, 'currentToken' => array(0,0,0,0,0,0,0,0), 'flags' => array('spvar' => 0, 'nohbh' => 0), 'elseif' => false, 'elselvl' => array(), 'helperresolver' => 0), array(array('unless')) |
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| 162 | * @expect 9 when input '#', array('helpers' => array('abc' => ''), 'usedFeature' => array('helper' => 8), 'level' => 0, 'currentToken' => array(0,0,0,0,0,0,0,0), 'flags' => array('spvar' => 0), 'elseif' => false, 'elselvl' => array()), array(array('abc')) |
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| 163 | * @expect 11 when input '#', array('helpers' => array('abc' => ''), 'usedFeature' => array('helper' => 10), 'level' => 0, 'currentToken' => array(0,0,0,0,0,0,0,0), 'flags' => array('spvar' => 0), 'elseif' => false, 'elselvl' => array()), array(array('abc')) |
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| 164 | * @expect true when input '>', array('partialresolver' => false, 'usedFeature' => array('partial' => 7), 'level' => 0, 'flags' => array('skippartial' => 0, 'runpart' => 0, 'spvar' => 0), 'currentToken' => array(0,0,0,0,0,0,0,0), 'elseif' => false, 'elselvl' => array()), array('test') |
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| 165 | */ |
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| 166 | 678 | protected static function operator($operator, &$context, &$vars) { |
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| 228 | |||
| 229 | /** |
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| 230 | * validate inline partial begin token |
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| 231 | * |
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| 232 | * @param array<string,array|string|integer> $context current compile context |
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| 233 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 234 | * |
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| 235 | * @return boolean|null Return true when inline partial ends |
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| 236 | */ |
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| 237 | 677 | protected static function inlinePartial(&$context, $vars) { |
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| 265 | |||
| 266 | /** |
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| 267 | * validate partial block token |
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| 268 | * |
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| 269 | * @param array<string,array|string|integer> $context current compile context |
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| 270 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 271 | * |
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| 272 | * @return boolean|null Return true when partial block ends |
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| 273 | */ |
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| 274 | 677 | protected static function partialBlock(&$context, $vars) { |
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| 306 | |||
| 307 | /** |
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| 308 | * handle else if |
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| 309 | * |
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| 310 | * @param array<string,array|string|integer> $context current compile context |
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| 311 | */ |
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| 312 | 76 | protected static function doElseIf(&$context) { |
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| 319 | |||
| 320 | /** |
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| 321 | * validate block begin token |
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| 322 | * |
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| 323 | * @param array<string,array|string|integer> $context current compile context |
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| 324 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 325 | * |
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| 326 | * @return boolean Return true always |
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| 327 | */ |
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| 328 | 256 | protected static function blockBegin(&$context, $vars) { |
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| 345 | |||
| 346 | /** |
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| 347 | * validate builtin helpers |
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| 348 | * |
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| 349 | * @param array<string,array|string|integer> $context current compile context |
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| 350 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 351 | */ |
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| 352 | 146 | protected static function builtin(&$context, $vars) { |
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| 364 | |||
| 365 | /** |
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| 366 | * validate section token |
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| 367 | * |
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| 368 | * @param array<string,array|string|integer> $context current compile context |
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| 369 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 370 | * @param boolean $isEach the section is #each |
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| 371 | * |
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| 372 | * @return boolean Return true always |
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| 373 | */ |
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| 374 | 171 | protected static function section(&$context, $vars, $isEach = false) { |
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| 385 | |||
| 386 | /** |
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| 387 | * validate with token |
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| 388 | * |
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| 389 | * @param array<string,array|string|integer> $context current compile context |
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| 390 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 391 | * |
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| 392 | * @return boolean Return true always |
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| 393 | */ |
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| 394 | 30 | protected static function with(&$context, $vars) { |
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| 398 | |||
| 399 | /** |
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| 400 | * validate unless token |
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| 401 | * |
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| 402 | * @param array<string,array|string|integer> $context current compile context |
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| 403 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 404 | * |
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| 405 | * @return boolean Return true always |
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| 406 | */ |
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| 407 | 7 | protected static function unless(&$context, $vars) { |
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| 412 | |||
| 413 | /** |
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| 414 | * validate if token |
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| 415 | * |
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| 416 | * @param array<string,array|string|integer> $context current compile context |
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| 417 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 418 | * |
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| 419 | * @return boolean Return true always |
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| 420 | */ |
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| 421 | 70 | protected static function doIf(&$context, $vars) { |
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| 426 | |||
| 427 | /** |
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| 428 | * validate block custom helper token |
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| 429 | * |
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| 430 | * @param array<string,array|string|integer> $context current compile context |
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| 431 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 432 | * @param boolean $inverted the logic will be inverted |
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| 433 | * |
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| 434 | * @return integer|null Return number of used custom helpers |
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1 ignored issue
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| 435 | */ |
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| 436 | 59 | protected static function blockCustomHelper(&$context, $vars, $inverted = false) { |
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| 443 | |||
| 444 | /** |
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| 445 | * validate inverted section |
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| 446 | * |
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| 447 | * @param array<string,array|string|integer> $context current compile context |
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| 448 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 449 | * |
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| 450 | * @return integer Return number of inverted sections |
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1 ignored issue
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| 451 | */ |
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| 452 | 38 | protected static function invertedSection(&$context, $vars) { |
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| 455 | |||
| 456 | /** |
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| 457 | * Return compiled PHP code for a handlebars block end token |
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| 458 | * |
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| 459 | * @param array<string,array|string|integer> $context current compile context |
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| 460 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 461 | * @param string|null $match should also match to this operator |
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| 462 | * |
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| 463 | * @return boolean Return true |
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| 464 | */ |
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| 465 | 350 | protected static function blockEnd(&$context, &$vars, $match = null) { |
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| 505 | |||
| 506 | /** |
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| 507 | * handle delimiter change |
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| 508 | * |
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| 509 | * @param array<string,array|string|integer> $context current compile context |
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| 510 | * |
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| 511 | * @return boolean|null Return true when delimiter changed |
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| 512 | */ |
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| 513 | 706 | protected static function isDelimiter(&$context) { |
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| 520 | |||
| 521 | /** |
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| 522 | * handle raw block |
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| 523 | * |
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| 524 | * @param string[] $token detected handlebars {{ }} token |
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| 525 | * @param array<string,array|string|integer> $context current compile context |
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| 526 | * |
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| 527 | * @return boolean|null Return true when in rawblock mode |
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| 528 | */ |
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| 529 | 716 | protected static function rawblock(&$token, &$context) { |
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| 559 | |||
| 560 | /** |
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| 561 | * handle comment |
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| 562 | * |
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| 563 | * @param string[] $token detected handlebars {{ }} token |
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| 564 | * @param array<string,array|string|integer> $context current compile context |
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| 565 | * |
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| 566 | * @return boolean|null Return true when is comment |
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| 567 | */ |
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| 568 | 697 | protected static function comment(&$token, &$context) { |
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| 574 | |||
| 575 | /** |
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| 576 | * Collect handlebars usage information, detect template error. |
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| 577 | * |
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| 578 | * @param string[] $token detected handlebars {{ }} token |
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| 579 | * @param array<string,array|string|integer> $context current compile context |
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| 580 | */ |
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| 581 | 716 | protected static function token(&$token, &$context) { |
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| 656 | |||
| 657 | /** |
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| 658 | * Return 1 or larger number when else token detected |
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| 659 | * |
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| 660 | * @param array<string,array|string|integer> $context current compile context |
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| 661 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 662 | * |
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| 663 | * @return integer Return 1 or larger number when else token detected |
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1 ignored issue
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| 664 | */ |
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| 665 | 50 | protected static function doElse(&$context, $vars) { |
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| 679 | |||
| 680 | /** |
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| 681 | * Return true when this is {{log ...}} |
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| 682 | * |
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| 683 | * @param array<string,array|string|integer> $context current compile context |
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| 684 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 685 | * |
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| 686 | * @return boolean|null Return true when it is custom helper |
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| 687 | */ |
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| 688 | 350 | public static function log(&$context, $vars) { |
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| 699 | |||
| 700 | /** |
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| 701 | * Return true when this is {{lookup ...}} |
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| 702 | * |
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| 703 | * @param array<string,array|string|integer> $context current compile context |
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| 704 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 705 | * |
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| 706 | * @return boolean|null Return true when it is custom helper |
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| 707 | */ |
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| 708 | 350 | public static function lookup(&$context, $vars) { |
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| 721 | |||
| 722 | /** |
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| 723 | * Return true when the name is listed in helper table |
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| 724 | * |
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| 725 | * @param array<string,array|string|integer> $context current compile context |
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| 726 | * @param string $name token name |
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| 727 | * |
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| 728 | * @return boolean Return true when it is custom helper |
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| 729 | */ |
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| 730 | 468 | public static function helper(&$context, $name) { |
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| 738 | |||
| 739 | /** |
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| 740 | * use helperresolver to resolve helper, return true when helper founded |
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| 741 | * |
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| 742 | * @param array<string,array|string|integer> $context Current context of compiler progress. |
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| 743 | * @param string $name helper name |
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| 744 | * |
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| 745 | * @return string|null $content helper function name or callable |
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1 ignored issue
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| 746 | */ |
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| 747 | 619 | public static function resolveHelper(&$context, &$name) { |
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| 760 | |||
| 761 | /** |
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| 762 | * detect for block custom helper |
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| 763 | * |
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| 764 | * @param array<string,array|string|integer> $context current compile context |
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| 765 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 766 | * |
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| 767 | * @return boolean|null Return true when this token is block custom helper |
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| 768 | */ |
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| 769 | 338 | protected static function isBlockHelper($context, $vars) { |
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| 780 | |||
| 781 | /** |
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| 782 | * validate inline partial |
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| 783 | * |
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| 784 | * @param array<string,array|string|integer> $context current compile context |
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| 785 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 786 | * |
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| 787 | * @return boolean Return true always |
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| 788 | */ |
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| 789 | 13 | protected static function inline(&$context, $vars) { |
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| 801 | |||
| 802 | /** |
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| 803 | * validate partial |
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| 804 | * |
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| 805 | * @param array<string,array|string|integer> $context current compile context |
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| 806 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 807 | * |
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| 808 | * @return integer|boolean Return 1 or larger number for runtime partial, return true for other case |
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1 ignored issue
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| 809 | */ |
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| 810 | 95 | protected static function partial(&$context, $vars) { |
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| 832 | |||
| 833 | /** |
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| 834 | * Modify $token when spacing rules matched. |
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| 835 | * |
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| 836 | * @param array<string> $token detected handlebars {{ }} token |
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| 837 | * @param array<string,array|string|integer> $context current compile context |
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| 838 | * @param boolean $nost do not do stand alone logic |
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| 839 | * |
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| 840 | * @return string|null Return compiled code segment for the token |
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| 841 | */ |
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| 842 | 706 | protected static function spacing(&$token, &$context, $nost = false) { |
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| 893 | } |
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| 894 | |||
| 895 |
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This check compares the return type specified in the
@returnannotation of a function or method doc comment with the types returned by the function and raises an issue if they mismatch.