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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| 30 | class Compiler extends Validator |
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| 31 | { |
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| 32 | public static $lastParsed; |
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| 33 | |||
| 34 | /** |
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| 35 | * Compile template into PHP code |
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| 36 | * |
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| 37 | * @param array<string,array|string|integer> $context Current context |
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| 38 | * @param string $template handlebars template |
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| 39 | * |
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| 40 | * @return string|null generated PHP code |
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| 41 | */ |
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| 42 | 630 | public static function compileTemplate(&$context, $template) { |
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| 76 | |||
| 77 | /** |
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| 78 | * Compose LightnCandy render codes for include() |
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| 79 | * |
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| 80 | * @param array<string,array|string|integer> $context Current context |
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| 81 | * @param string $code generated PHP code |
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| 82 | * |
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| 83 | * @return string Composed PHP code |
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| 84 | */ |
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| 85 | 566 | public static function composePHPRender($context, $code) { |
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| 86 | 566 | $flagJStrue = Expression::boolString($context['flags']['jstrue']); |
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| 87 | 566 | $flagJSObj = Expression::boolString($context['flags']['jsobj']); |
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| 88 | 566 | $flagSPVar = Expression::boolString($context['flags']['spvar']); |
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| 89 | 566 | $flagProp = Expression::boolString($context['flags']['prop']); |
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| 90 | 566 | $flagMethod = Expression::boolString($context['flags']['method']); |
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| 91 | 566 | $flagLambda = Expression::boolString($context['flags']['lambda']); |
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| 92 | 566 | $flagMustlok = Expression::boolString($context['flags']['mustlok']); |
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| 93 | 566 | $flagMustlam = Expression::boolString($context['flags']['mustlam']); |
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| 94 | 566 | $flagEcho = Expression::boolString($context['flags']['echo']); |
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| 95 | |||
| 96 | 566 | $libstr = Exporter::runtime($context); |
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| 97 | 566 | $constants = Exporter::constants($context); |
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| 98 | 566 | $helpers = Exporter::helpers($context); |
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| 99 | 566 | $bhelpers = Exporter::helpers($context, 'blockhelpers'); |
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| 100 | 566 | $hbhelpers = Exporter::helpers($context, 'hbhelpers'); |
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| 101 | 566 | $debug = Runtime::DEBUG_ERROR_LOG; |
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| 102 | 566 | $phpstart = $context['flags']['bare'] ? '' : "<?php use {$context['runtime']} as LR;\n"; |
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| 103 | 566 | $phpend = $context['flags']['bare'] ? ';' : "\n?>"; |
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| 104 | |||
| 105 | // Return generated PHP code string. |
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| 106 | 566 | return "{$phpstart}return function (\$in, \$options = null) { |
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| 107 | \$cx = array( |
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| 108 | 'flags' => array( |
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| 109 | 566 | 'jstrue' => $flagJStrue, |
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| 110 | 566 | 'jsobj' => $flagJSObj, |
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| 111 | 566 | 'spvar' => $flagSPVar, |
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| 112 | 566 | 'prop' => $flagProp, |
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| 113 | 566 | 'method' => $flagMethod, |
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| 114 | 566 | 'lambda' => $flagLambda, |
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| 115 | 566 | 'mustlok' => $flagMustlok, |
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| 116 | 566 | 'mustlam' => $flagMustlam, |
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| 117 | 566 | 'echo' => $flagEcho, |
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| 118 | 566 | 'debug' => isset(\$options['debug']) ? \$options['debug'] : $debug, |
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| 119 | ), |
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| 120 | 566 | 'constants' => $constants, |
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| 121 | 566 | 'helpers' => $helpers, |
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| 122 | 566 | 'blockhelpers' => $bhelpers, |
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| 123 | 566 | 'hbhelpers' => isset(\$options['helpers']) ? array_merge($hbhelpers, \$options['helpers']) : $hbhelpers, |
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| 124 | 566 | 'partials' => array({$context['partialCode']}), |
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| 125 | 'scopes' => array(), |
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| 126 | 'sp_vars' => isset(\$options['data']) ? array_merge(array('root' => \$in), \$options['data']) : array('root' => \$in), |
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| 127 | 566 | 'runtime' => '{$context['runtime']}', |
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| 128 | 566 | $libstr |
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| 129 | ); |
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| 130 | 566 | {$context['renderex']} |
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| 131 | 566 | {$context['ops']['op_start']}'$code'{$context['ops']['op_end']} |
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| 132 | 566 | }$phpend"; |
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| 133 | } |
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| 134 | |||
| 135 | /** |
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| 136 | * Get function name for standalone or none standalone template. |
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| 137 | * |
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| 138 | * @param array<string,array|string|integer> $context Current context of compiler progress. |
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| 139 | * @param string $name base function name |
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| 140 | * @param string $tag original handlabars tag for debug |
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| 141 | * |
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| 142 | * @return string compiled Function name |
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| 143 | * |
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| 144 | * @expect 'LR::test(' when input array('flags' => array('standalone' => 0, 'debug' => 0), 'runtime' => 'Runtime'), 'test', '' |
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| 145 | * @expect 'LR::test2(' when input array('flags' => array('standalone' => 0, 'debug' => 0), 'runtime' => 'Runtime'), 'test2', '' |
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| 146 | * @expect "\$cx['funcs']['test3'](" when input array('flags' => array('standalone' => 1, 'debug' => 0), 'runtime' => 'Runtime'), 'test3', '' |
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| 147 | * @expect 'LR::debug(\'abc\', \'test\', ' when input array('flags' => array('standalone' => 0, 'debug' => 1), 'runtime' => 'Runtime'), 'test', 'abc' |
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| 148 | */ |
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| 149 | 502 | protected static function getFuncName(&$context, $name, $tag) { |
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| 162 | |||
| 163 | /** |
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| 164 | * Get string presentation of variables |
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| 165 | * |
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| 166 | * @param array<array> $vn variable name array. |
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| 167 | * @param array<string,array|string|integer> $context current compile context |
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| 168 | * |
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| 169 | * @return array<string|array> variable names |
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| 170 | * |
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| 171 | * @expect array('array(array($in),array())', array('this')) when input array(null), array('flags'=>array('spvar'=>true)) |
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| 172 | * @expect array('array(array($in,$in),array())', array('this', 'this')) when input array(null, null), array('flags'=>array('spvar'=>true)) |
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| 173 | * @expect array('array(array(),array(\'a\'=>$in))', array('this')) when input array('a' => null), array('flags'=>array('spvar'=>true)) |
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| 174 | */ |
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| 175 | 210 | protected static function getVariableNames($vn, &$context) { |
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| 189 | |||
| 190 | /** |
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| 191 | * Get string presentation of a sub expression |
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| 192 | * |
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| 193 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 194 | * @param array<string,array|string|integer> $context current compile context |
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| 195 | * |
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| 196 | * @return array<string> code representing passed expression |
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| 197 | */ |
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| 198 | 35 | public static function compileSubExpression($vars, &$context) { |
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| 212 | |||
| 213 | /** |
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| 214 | * Get string presentation of a subexpression or a variable |
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| 215 | * |
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| 216 | * @param array<array|string|integer> $var variable parsed path |
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| 217 | * @param array<array|string|integer> $context current compile context |
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| 218 | * |
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| 219 | * @return array<string> variable names |
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| 220 | */ |
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| 221 | 341 | protected static function getVariableNameOrSubExpression($var, &$context) { |
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| 224 | |||
| 225 | /** |
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| 226 | * Get string presentation of a variable |
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| 227 | * |
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| 228 | * @param array<array|string|integer> $var variable parsed path |
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| 229 | * @param array<array|string|integer> $context current compile context |
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| 230 | * @param array<string> $lookup extra lookup string as valid PHP variable name |
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| 231 | * |
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| 232 | * @return array<string> variable names |
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| 233 | * |
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| 234 | * @expect array('$in', 'this') when input array(null), array('flags'=>array('spvar'=>true,'debug'=>0)) |
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| 235 | * @expect array('((isset($in[\'true\']) && is_array($in)) ? $in[\'true\'] : null)', '[true]') when input array('true'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 236 | * @expect array('((isset($in[\'false\']) && is_array($in)) ? $in[\'false\'] : null)', '[false]') when input array('false'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 237 | * @expect array('true', 'true') when input array(0, 'true'), array('flags'=>array('spvar'=>true,'debug'=>0)) |
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| 238 | * @expect array('false', 'false') when input array(0, 'false'), array('flags'=>array('spvar'=>true,'debug'=>0)) |
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| 239 | * @expect array('((isset($in[\'2\']) && is_array($in)) ? $in[\'2\'] : null)', '[2]') when input array('2'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 240 | * @expect array('2', '2') when input array(0, '2'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0)) |
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| 241 | * @expect array('((isset($in[\'@index\']) && is_array($in)) ? $in[\'@index\'] : null)', '[@index]') when input array('@index'), array('flags'=>array('spvar'=>false,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 242 | * @expect array("((isset(\$cx['sp_vars']['index']) && is_array(\$cx['sp_vars'])) ? \$cx['sp_vars']['index'] : null)", '@[index]') when input array('@index'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 243 | * @expect array("((isset(\$cx['sp_vars']['key']) && is_array(\$cx['sp_vars'])) ? \$cx['sp_vars']['key'] : null)", '@[key]') when input array('@key'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 244 | * @expect array("((isset(\$cx['sp_vars']['first']) && is_array(\$cx['sp_vars'])) ? \$cx['sp_vars']['first'] : null)", '@[first]') when input array('@first'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 245 | * @expect array("((isset(\$cx['sp_vars']['last']) && is_array(\$cx['sp_vars'])) ? \$cx['sp_vars']['last'] : null)", '@[last]') when input array('@last'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 246 | * @expect array('((isset($in[\'"a"\']) && is_array($in)) ? $in[\'"a"\'] : null)', '["a"]') when input array('"a"'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 247 | * @expect array('"a"', '"a"') when input array(0, '"a"'), array('flags'=>array('spvar'=>true,'debug'=>0)) |
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| 248 | * @expect array('((isset($in[\'a\']) && is_array($in)) ? $in[\'a\'] : null)', '[a]') when input array('a'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 249 | * @expect array('((isset($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(1,'a'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 250 | * @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(3,'a'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 251 | * @expect array('((isset($in[\'id\']) && is_array($in)) ? $in[\'id\'] : null)', 'this.[id]') when input array(null, 'id'), array('flags'=>array('spvar'=>true,'debug'=>0,'prop'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0)) |
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| 252 | * @expect array('LR::v($cx, isset($in) ? $in : null, array(\'id\'))', 'this.[id]') when input array(null, 'id'), array('flags'=>array('prop'=>true,'spvar'=>true,'debug'=>0,'method'=>0,'mustlok'=>0,'mustlam'=>0, 'lambda'=>0,'standalone'=>0), 'runtime' => 'Runtime') |
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| 253 | */ |
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| 254 | 502 | protected static function getVariableName($var, &$context, $lookup = null) { |
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| 296 | |||
| 297 | /** |
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| 298 | * Return compiled PHP code for a handlebars token |
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| 299 | * |
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| 300 | * @param array<string,array|boolean> $info parsed information |
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| 301 | * @param array<string,array|string|integer> $context current compile context |
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| 302 | * |
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| 303 | * @return string Return compiled code segment for the token |
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| 304 | */ |
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| 305 | 526 | protected static function compileToken($info, &$context) { |
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| 334 | |||
| 335 | /** |
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| 336 | * handle partial |
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| 337 | * |
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| 338 | * @param array<string,array|string|integer> $context current compile context |
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| 339 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 340 | * |
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| 341 | * @return string Return compiled code segment for the partial |
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| 342 | */ |
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| 343 | 62 | public static function partial(&$context, $vars) { |
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| 365 | |||
| 366 | /** |
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| 367 | * Return compiled PHP code for a handlebars inverted section begin token |
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| 368 | * |
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| 369 | * @param array<string,array|string|integer> $context current compile context |
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| 370 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 371 | * |
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| 372 | * @return string Return compiled code segment for the token |
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| 373 | */ |
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| 374 | 37 | protected static function invertedSection(&$context, $vars) { |
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| 378 | |||
| 379 | /** |
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| 380 | * Return compiled PHP code for a handlebars block custom helper begin token |
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| 381 | * |
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| 382 | * @param array<string,array|string|integer> $context current compile context |
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| 383 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 384 | * @param boolean $inverted the logic will be inverted |
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| 385 | * |
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| 386 | * @return string Return compiled code segment for the token |
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| 387 | */ |
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| 388 | 52 | protected static function blockCustomHelper(&$context, $vars, $inverted = false) { |
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| 398 | |||
| 399 | /** |
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| 400 | * Return compiled PHP code for a handlebars block end 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> $vars parsed arguments list |
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| 404 | * |
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| 405 | * @return string Return compiled code segment for the token |
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| 406 | */ |
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| 407 | 279 | protected static function blockEnd(&$context, $vars) { |
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| 438 | |||
| 439 | /** |
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| 440 | * Return compiled PHP code for a handlebars block begin token |
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| 441 | * |
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| 442 | * @param array<string,array|string|integer> $context current compile context |
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| 443 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 444 | * |
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| 445 | * @return string Return compiled code segment for the token |
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| 446 | */ |
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| 447 | 205 | protected static function blockBegin(&$context, $vars) { |
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| 467 | |||
| 468 | /** |
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| 469 | * compile {{#foo}} token |
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| 470 | * |
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| 471 | * @param array<string,array|string|integer> $context current compile context |
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| 472 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 473 | * @param boolean $isEach the section is #each |
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| 474 | * |
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| 475 | * @return string|null Return compiled code segment for the token |
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| 476 | */ |
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| 477 | 148 | protected static function section(&$context, $vars, $isEach = false) { |
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| 488 | |||
| 489 | /** |
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| 490 | * compile {{with}} token |
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| 491 | * |
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| 492 | * @param array<string,array|string|integer> $context current compile context |
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| 493 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 494 | * |
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| 495 | * @return string|null Return compiled code segment for the token |
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| 496 | */ |
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| 497 | 15 | protected static function with(&$context, $vars) { |
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| 501 | |||
| 502 | /** |
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| 503 | * Return compiled PHP code for a handlebars custom helper token |
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| 504 | * |
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| 505 | * @param array<string,array|string|integer> $context current compile context |
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| 506 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 507 | * @param boolean $raw is this {{{ token or not |
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| 508 | * |
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| 509 | * @return string|null Return compiled code segment for the token when the token is custom helper |
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| 510 | */ |
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| 511 | 389 | protected static function customHelper(&$context, $vars, $raw) { |
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| 523 | |||
| 524 | /** |
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| 525 | * Return compiled PHP code for a handlebars else token |
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| 526 | * |
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| 527 | * @param array<string,array|string|integer> $context current compile context |
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| 528 | * |
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| 529 | * @return string Return compiled code segment for the token when the token is else |
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| 530 | */ |
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| 531 | 44 | protected static function doElse(&$context) { |
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| 541 | |||
| 542 | /** |
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| 543 | * Return compiled PHP code for a handlebars lookup token |
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| 544 | * |
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| 545 | * @param array<string,array|string|integer> $context current compile context |
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| 546 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 547 | * @param boolean $raw is this {{{ token or not |
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| 548 | * |
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| 549 | * @return string Return compiled code segment for the token |
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| 550 | */ |
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| 551 | 2 | protected static function compileLookup(&$context, &$vars, $raw) { |
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| 560 | |||
| 561 | /** |
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| 562 | * Return compiled PHP code for a handlebars variable token |
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| 563 | * |
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| 564 | * @param array<string,array|string|integer> $context current compile context |
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| 565 | * @param array<boolean|integer|string|array> $vars parsed arguments list |
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| 566 | * @param boolean $raw is this {{{ token or not |
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| 567 | * |
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| 568 | * @return string Return compiled code segment for the token |
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| 569 | */ |
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| 570 | 313 | protected static function compileVariable(&$context, &$vars, $raw) { |
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| 578 | |||
| 579 | /** |
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| 580 | * Add usage count to context |
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| 581 | * |
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| 582 | * @param array<string,array|string|integer> $context current context |
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| 583 | * @param string $category ctegory name, can be one of: 'var', 'helpers', 'blockhelpers' |
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| 584 | * @param string $name used name |
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| 585 | * @param integer $count increment |
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| 586 | * |
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| 587 | * @expect 1 when input array('usedCount' => array('test' => array())), 'test', 'testname' |
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| 588 | * @expect 3 when input array('usedCount' => array('test' => array('testname' => 2))), 'test', 'testname' |
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| 589 | * @expect 5 when input array('usedCount' => array('test' => array('testname' => 2))), 'test', 'testname', 3 |
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| 590 | */ |
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| 591 | 502 | protected static function addUsageCount(&$context, $category, $name, $count = 1) { |
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| 597 | } |
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| 598 | |||
| 599 |
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This check looks for
@paramannotations where the type inferred by our type inference engine differs from the declared type.It makes a suggestion as to what type it considers more descriptive.
Most often this is a case of a parameter that can be null in addition to its declared types.