zordius /
lightncandy
Complex classes like Compiler 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 Compiler, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 31 | class Compiler extends Validator |
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| 32 | { |
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| 33 | public static $lastParsed; |
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| 34 | |||
| 35 | /** |
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| 36 | * Compile template into PHP code |
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| 37 | * |
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| 38 | * @param array<string,array|string|integer> $context Current context |
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| 39 | * @param string $template handlebars template |
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| 40 | * |
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| 41 | * @return string|null generated PHP code |
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| 42 | */ |
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| 43 | 702 | public static function compileTemplate(&$context, $template) { |
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| 77 | |||
| 78 | /** |
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| 79 | * Compose LightnCandy render codes for include() |
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| 80 | * |
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| 81 | * @param array<string,array|string|integer> $context Current context |
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| 82 | * @param string $code generated PHP code |
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| 83 | * |
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| 84 | * @return string Composed PHP code |
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| 85 | */ |
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| 86 | 633 | public static function composePHPRender($context, $code) { |
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| 140 | |||
| 141 | /** |
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| 142 | * Get function name for standalone or none standalone template. |
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| 143 | * |
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| 144 | * @param array<string,array|string|integer> $context Current context of compiler progress. |
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| 145 | * @param string $name base function name |
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| 146 | * @param string $tag original handlabars tag for debug |
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| 147 | * |
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| 148 | * @return string compiled Function name |
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| 149 | * |
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| 150 | * @expect 'LR::test(' when input array('flags' => array('standalone' => 0, 'debug' => 0), 'runtime' => 'Runtime'), 'test', '' |
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| 151 | * @expect 'LR::test2(' when input array('flags' => array('standalone' => 0, 'debug' => 0), 'runtime' => 'Runtime'), 'test2', '' |
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| 152 | * @expect "\$cx['funcs']['test3'](" when input array('flags' => array('standalone' => 1, 'debug' => 0), 'runtime' => 'Runtime'), 'test3', '' |
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| 153 | * @expect 'LR::debug(\'abc\', \'test\', ' when input array('flags' => array('standalone' => 0, 'debug' => 1), 'runtime' => 'Runtime'), 'test', 'abc' |
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| 154 | */ |
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| 155 | 569 | protected static function getFuncName(&$context, $name, $tag) { |
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| 168 | |||
| 169 | /** |
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| 170 | * Get string presentation of variables |
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| 171 | * |
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| 172 | * @param array<string,array|string|integer> $context current compile context |
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| 173 | * @param array<array> $vn variable name array. |
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| 174 | * @param array<string>|null $blockParams block param list |
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| 175 | * |
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| 176 | * @return array<string|array> variable names |
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| 177 | * |
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| 178 | * @expect array('array(array($in),array())', array('this')) when input array('flags'=>array('spvar'=>true)), array(null) |
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| 179 | * @expect array('array(array($in,$in),array())', array('this', 'this')) when input array('flags'=>array('spvar'=>true)), array(null, null) |
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| 180 | * @expect array('array(array(),array(\'a\'=>$in))', array('this')) when input array('flags'=>array('spvar'=>true)), array('a' => null) |
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| 181 | */ |
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| 182 | 246 | protected static function getVariableNames(&$context, $vn, $blockParams = null) { |
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| 197 | |||
| 198 | /** |
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| 199 | * Get string presentation of a sub expression |
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| 200 | * |
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| 201 | * @param array<string,array|string|integer> $context current compile context |
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| 202 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 203 | * |
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| 204 | * @return array<string> code representing passed expression |
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| 205 | */ |
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| 206 | 41 | public static function compileSubExpression(&$context, $vars) { |
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| 207 | 41 | $origSeperator = $context['ops']['seperator']; |
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| 208 | 41 | $context['ops']['seperator'] = ''; |
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| 209 | |||
| 210 | 41 | $ret = static::customHelper($context, $vars, true); |
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| 211 | |||
| 212 | 41 | if (($ret === null) && $context['flags']['lambda']) { |
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| 213 | 4 | $ret = static::compileVariable($context, $vars, true); |
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| 214 | } |
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| 215 | |||
| 216 | 41 | $context['ops']['seperator'] = $origSeperator; |
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| 217 | |||
| 218 | 41 | return array($ret ? $ret : '', 'FIXME: $subExpression'); |
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| 219 | } |
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| 220 | |||
| 221 | /** |
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| 222 | * Get string presentation of a subexpression or a variable |
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| 223 | * |
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| 224 | * @param array<array|string|integer> $context current compile context |
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| 225 | * @param array<array|string|integer> $var variable parsed path |
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| 226 | * |
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| 227 | * @return array<string> variable names |
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| 228 | */ |
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| 229 | 348 | protected static function getVariableNameOrSubExpression(&$context, $var) { |
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| 230 | 348 | return Parser::isSubExp($var) ? static::compileSubExpression($context, $var[1]) : static::getVariableName($context, $var); |
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| 231 | } |
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| 232 | |||
| 233 | /** |
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| 234 | * Get string presentation of a variable |
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| 235 | * |
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| 236 | * @param array<array|string|integer> $var variable parsed path |
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| 237 | * @param array<array|string|integer> $context current compile context |
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| 238 | * @param array<string> $lookup extra lookup string as valid PHP variable name |
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| 239 | * |
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| 240 | * @return array<string> variable names |
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| 241 | * |
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| 242 | * @expect array('$in', 'this') when input array('flags'=>array('spvar'=>true,'debug'=>0)), array(null) |
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| 243 | * @expect array('((isset($in[\'true\']) && is_array($in)) ? $in[\'true\'] : null)', '[true]') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array('true') |
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| 244 | * @expect array('((isset($in[\'false\']) && is_array($in)) ? $in[\'false\'] : null)', '[false]') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array('false') |
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| 245 | * @expect array('true', 'true') when input array('flags'=>array('spvar'=>true,'debug'=>0)), array(-1, 'true') |
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| 246 | * @expect array('false', 'false') when input array('flags'=>array('spvar'=>true,'debug'=>0)), array(-1, 'false') |
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| 247 | * @expect array('((isset($in[\'2\']) && is_array($in)) ? $in[\'2\'] : null)', '[2]') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array('2') |
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| 248 | * @expect array('2', '2') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0)), array(-1, '2') |
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| 249 | * @expect array('((isset($in[\'@index\']) && is_array($in)) ? $in[\'@index\'] : null)', '[@index]') when input array('flags'=>array('spvar'=>false,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array('@index') |
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| 250 | * @expect array("((isset(\$cx['sp_vars']['index']) && is_array(\$cx['sp_vars'])) ? \$cx['sp_vars']['index'] : null)", '@[index]') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array('@index') |
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| 251 | * @expect array("((isset(\$cx['sp_vars']['key']) && is_array(\$cx['sp_vars'])) ? \$cx['sp_vars']['key'] : null)", '@[key]') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array('@key') |
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| 252 | * @expect array("((isset(\$cx['sp_vars']['first']) && is_array(\$cx['sp_vars'])) ? \$cx['sp_vars']['first'] : null)", '@[first]') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array('@first') |
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| 253 | * @expect array("((isset(\$cx['sp_vars']['last']) && is_array(\$cx['sp_vars'])) ? \$cx['sp_vars']['last'] : null)", '@[last]') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array('@last') |
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| 254 | * @expect array('((isset($in[\'"a"\']) && is_array($in)) ? $in[\'"a"\'] : null)', '["a"]') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array('"a"') |
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| 255 | * @expect array('"a"', '"a"') when input array('flags'=>array('spvar'=>true,'debug'=>0)), array(-1, '"a"') |
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| 256 | * @expect array('((isset($in[\'a\']) && is_array($in)) ? $in[\'a\'] : null)', '[a]') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array('a') |
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| 257 | * @expect array('((isset($cx[\'scopes\'][count($cx[\'scopes\'])-1][\'a\']) && is_array($cx[\'scopes\'][count($cx[\'scopes\'])-1])) ? $cx[\'scopes\'][count($cx[\'scopes\'])-1][\'a\'] : null)', '../[a]') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array(1,'a') |
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| 258 | * @expect array('((isset($cx[\'scopes\'][count($cx[\'scopes\'])-3][\'a\']) && is_array($cx[\'scopes\'][count($cx[\'scopes\'])-3])) ? $cx[\'scopes\'][count($cx[\'scopes\'])-3][\'a\'] : null)', '../../../[a]') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array(3,'a') |
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| 259 | * @expect array('((isset($in[\'id\']) && is_array($in)) ? $in[\'id\'] : null)', 'this.[id]') when input array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)), array(null, 'id') |
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| 260 | * @expect array('LR::v($cx, $in, isset($in) ? $in : null, array(\'id\'))', 'this.[id]') when input array('flags'=>array('prop'=>true,'spvar'=>true,'debug'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0,'standalone'=>0), 'runtime' => 'Runtime'), array(null, 'id') |
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| 261 | */ |
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| 262 | 564 | protected static function getVariableName(&$context, $var, $lookup = null, $args = null) { |
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| 307 | |||
| 308 | /** |
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| 309 | * Return compiled PHP code for a handlebars token |
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| 310 | * |
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| 311 | * @param array<string,array|string|integer> $context current compile context |
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| 312 | * @param array<string,array|boolean> $info parsed information |
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| 313 | * |
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| 314 | * @return string Return compiled code segment for the token |
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| 315 | */ |
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| 316 | 593 | protected static function compileToken(&$context, $info) { |
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| 345 | |||
| 346 | /** |
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| 347 | * handle partial |
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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> $vars parsed arguments list |
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| 351 | * |
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| 352 | * @return string Return compiled code segment for the partial |
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| 353 | */ |
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| 354 | 73 | public static function partial(&$context, $vars) { |
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| 377 | |||
| 378 | /** |
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| 379 | * handle inline partial |
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| 380 | * |
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| 381 | * @param array<string,array|string|integer> $context current compile context |
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| 382 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 383 | * |
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| 384 | * @return string Return compiled code segment for the partial |
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| 385 | */ |
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| 386 | 38 | public static function inline(&$context, $vars) { |
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| 397 | |||
| 398 | /** |
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| 399 | * Return compiled PHP code for a handlebars inverted section begin token |
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| 400 | 61 | * |
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| 401 | 61 | * @param array<string,array|string|integer> $context current compile context |
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| 402 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 403 | 61 | * |
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| 404 | 61 | * @return string Return compiled code segment for the token |
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| 405 | 61 | */ |
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| 406 | 61 | protected static function invertedSection(&$context, $vars) { |
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| 410 | |||
| 411 | /** |
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| 412 | * Return compiled PHP code for a handlebars block custom helper begin token |
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| 413 | * |
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| 414 | * @param array<string,array|string|integer> $context current compile context |
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| 415 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 416 | * @param boolean $inverted the logic will be inverted |
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| 417 | * |
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| 418 | * @return string Return compiled code segment for the token |
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| 419 | */ |
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| 420 | 313 | protected static function blockCustomHelper(&$context, $vars, $inverted = false) { |
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| 431 | |||
| 432 | 2 | /** |
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| 433 | 236 | * Return compiled PHP code for a handlebars block end token |
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| 434 | 29 | * |
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| 435 | 28 | * @param array<string,array|string|integer> $context current compile context |
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| 436 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 437 | * |
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| 438 | * @return string Return compiled code segment for the token |
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| 439 | 239 | */ |
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| 440 | protected static function blockEnd(&$context, $vars) { |
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| 471 | 74 | ||
| 472 | 24 | /** |
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| 473 | 24 | * Return compiled PHP code for a handlebars block begin token |
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| 474 | * |
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| 475 | * @param array<string,array|string|integer> $context current compile context |
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| 476 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 477 | * |
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| 478 | 112 | * @return string Return compiled code segment for the token |
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| 479 | */ |
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| 480 | protected static function blockBegin(&$context, $vars) { |
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| 500 | |||
| 501 | /** |
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| 502 | 159 | * compile {{#foo}} token |
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| 503 | 66 | * |
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| 504 | 66 | * @param array<string,array|string|integer> $context current compile context |
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| 505 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 506 | 93 | * @param boolean $isEach the section is #each |
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| 507 | * |
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| 508 | 159 | * @return string|null Return compiled code segment for the token |
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| 509 | 159 | */ |
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| 510 | protected static function section(&$context, $vars, $isEach = false) { |
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| 531 | |||
| 532 | /** |
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| 533 | * compile {{with}} token |
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| 534 | * |
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| 535 | * @param array<string,array|string|integer> $context current compile context |
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| 536 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 537 | 445 | * |
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| 538 | 445 | * @return string|null Return compiled code segment for the token |
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| 539 | 445 | */ |
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| 540 | 335 | protected static function with(&$context, $vars) { |
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| 547 | 123 | ||
| 548 | /** |
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| 549 | * Return compiled PHP code for a handlebars custom helper token |
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| 550 | * |
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| 551 | * @param array<string,array|string|integer> $context current compile context |
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| 552 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 553 | * @param boolean $raw is this {{{ token or not |
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| 554 | * |
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| 555 | * @return string|null Return compiled code segment for the token when the token is custom helper |
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| 556 | */ |
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| 557 | 46 | protected static function customHelper(&$context, $vars, $raw) { |
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| 569 | |||
| 570 | /** |
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| 571 | * Return compiled PHP code for a handlebars else token |
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| 572 | * |
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| 573 | * @param array<string,array|string|integer> $context current compile context |
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| 574 | * |
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| 575 | * @return string Return compiled code segment for the token when the token is else |
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| 576 | */ |
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| 577 | 2 | protected static function doElse(&$context) { |
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| 587 | |||
| 588 | /** |
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| 589 | * Return compiled PHP code for a handlebars lookup token |
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| 590 | * |
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| 591 | * @param array<string,array|string|integer> $context current compile context |
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| 592 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 593 | * @param boolean $raw is this {{{ token or not |
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| 594 | * |
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| 595 | * @return string Return compiled code segment for the token |
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| 596 | 357 | */ |
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| 597 | 357 | protected static function compileLookup(&$context, &$vars, $raw) { |
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| 606 | 35 | ||
| 607 | /** |
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| 608 | * Return compiled PHP code for a handlebars variable token |
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| 609 | * |
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| 610 | * @param array<string,array|string|integer> $context current compile context |
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| 611 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 612 | * @param boolean $raw is this {{{ token or not |
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| 613 | * |
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| 614 | * @return string Return compiled code segment for the token |
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| 615 | */ |
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| 616 | protected static function compileVariable(&$context, &$vars, $raw) { |
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| 629 | |||
| 630 | /** |
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| 631 | * Add usage count to context |
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| 632 | * |
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| 633 | * @param array<string,array|string|integer> $context current context |
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| 634 | * @param string $category ctegory name, can be one of: 'var', 'helpers', 'blockhelpers' |
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| 635 | * @param string $name used name |
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| 636 | * @param integer $count increment |
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| 637 | * |
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| 638 | * @expect 1 when input array('usedCount' => array('test' => array())), 'test', 'testname' |
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| 639 | * @expect 3 when input array('usedCount' => array('test' => array('testname' => 2))), 'test', 'testname' |
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| 640 | * @expect 5 when input array('usedCount' => array('test' => array('testname' => 2))), 'test', 'testname', 3 |
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| 641 | */ |
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| 642 | protected static function addUsageCount(&$context, $category, $name, $count = 1) { |
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| 648 | } |
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| 649 | |||
| 650 |
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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.