stenin-nikita /
PHP-Yacc
| Conditions | 54 |
| Paths | 230 |
| Total Lines | 191 |
| Code Lines | 142 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 0 | ||
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | <?php |
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| 82 | public function render(CompressResult $result, $resultFile, $headerFile = null) |
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| 83 | { |
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| 84 | $headerFile = $headerFile ?: \fopen('php://memory', 'rw'); |
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| 85 | |||
| 86 | $this->language->begin($resultFile, $headerFile); |
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| 87 | |||
| 88 | $this->compress = $result; |
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| 89 | unset($result); |
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| 90 | |||
| 91 | $skipMode = false; |
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| 92 | $lineChanged = false; |
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| 93 | $tailCode = false; |
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| 94 | $reduceMode = [ |
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| 95 | 'enabled' => false, |
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| 96 | 'm' => -1, |
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| 97 | 'n' => 0, |
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| 98 | 'mac' => [], |
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| 99 | ]; |
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| 100 | $tokenMode = [ |
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| 101 | 'enabled' => false, |
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| 102 | 'mac' => [], |
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| 103 | ]; |
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| 104 | $buffer = ''; |
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| 105 | |||
| 106 | foreach ($this->template as $line) { |
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| 107 | $line .= "\n"; |
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| 108 | if ($tailCode) { |
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| 109 | $this->language->write($buffer.$line); |
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| 110 | continue; |
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| 111 | } |
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| 112 | |||
| 113 | if ($skipMode) { |
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| 114 | if ($this->metaMatch(\ltrim($line), 'endif')) { |
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| 115 | $skipMode = false; |
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| 116 | } |
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| 117 | continue; |
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| 118 | } |
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| 119 | |||
| 120 | if ($reduceMode['enabled']) { |
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| 121 | if ($this->metaMatch(\trim($line), 'endreduce')) { |
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| 122 | $reduceMode['enabled'] = false; |
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| 123 | $this->lineNumber++; |
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| 124 | if ($reduceMode['m'] < 0) { |
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| 125 | $reduceMode['m'] = $reduceMode['n']; |
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| 126 | } |
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| 127 | |||
| 128 | foreach ($this->context->grams as $gram) { |
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| 129 | if ($gram->action) { |
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| 130 | for ($j = 0; $j < $reduceMode['m']; $j++) { |
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| 131 | $this->expandMacro($reduceMode['mac'][$j], $gram->num, null); |
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| 132 | } |
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| 133 | } else { |
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| 134 | for ($j = $reduceMode['m']; $j < $reduceMode['n']; $j++) { |
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| 135 | $this->expandMacro($reduceMode['mac'][$j], $gram->num, null); |
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| 136 | } |
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| 137 | } |
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| 138 | } |
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| 139 | continue; |
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| 140 | } elseif ($this->metaMatch(\trim($line), 'noact')) { |
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| 141 | $reduceMode['m'] = $reduceMode['n']; |
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| 142 | continue; |
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| 143 | } |
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| 144 | $reduceMode['mac'][$reduceMode['n']++] = $line; |
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| 145 | continue; |
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| 146 | } |
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| 147 | |||
| 148 | if ($tokenMode['enabled']) { |
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| 149 | if ($this->metaMatch(\trim($line), 'endtokenval')) { |
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| 150 | $tokenMode['enabled'] = false; |
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| 151 | $this->lineNumber++; |
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| 152 | for ($i = 1; $i < $this->context->countTerminals; $i++) { |
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| 153 | $symbol = $this->context->symbol($i); |
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| 154 | if ($symbol->name[0] != '\'') { |
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| 155 | $str = $symbol->name; |
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| 156 | if ($i === 1) { |
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| 157 | $str = 'YYERRTOK'; |
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| 158 | } |
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| 159 | foreach ($tokenMode['mac'] as $mac) { |
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| 160 | $this->expandMacro($mac, $symbol->value, $str); |
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| 161 | } |
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| 162 | } |
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| 163 | } |
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| 164 | } else { |
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| 165 | $tokenMode['mac'][] = $line; |
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| 166 | } |
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| 167 | continue; |
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| 168 | } |
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| 169 | $p = $line; |
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| 170 | $buffer = ''; |
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| 171 | for ($i = 0; $i < \mb_strlen($line); $i++) { |
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| 172 | $p = \mb_substr($line, $i); |
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| 173 | if ($p[0] !== $this->metaChar) { |
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| 174 | $buffer .= $line[$i]; |
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| 175 | } elseif ($i + 1 < \mb_strlen($line) && $p[1] === $this->metaChar) { |
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| 176 | $i++; |
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| 177 | $buffer .= $this->metaChar; |
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| 178 | } elseif ($this->metaMatch($p, '(')) { |
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| 179 | $start = $i + 2; |
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| 180 | $val = \mb_substr($p, 2); |
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| 181 | while ($i < \mb_strlen($line) && $line[$i] !== ')') { |
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| 182 | $i++; |
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| 183 | } |
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| 184 | if (!isset($line[$i])) { |
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| 185 | throw new TemplateException('$(: missing ")"'); |
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| 186 | } |
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| 187 | $length = $i - $start; |
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| 188 | |||
| 189 | $buffer .= $this->genValueOf(\mb_substr($val, 0, $length)); |
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| 190 | } elseif ($this->metaMatch($p, 'TYPEOF(')) { |
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| 191 | throw new LogicException('TYPEOF is not implemented'); |
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| 192 | } else { |
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| 193 | break; |
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| 194 | } |
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| 195 | } |
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| 196 | if (isset($p[0]) && $p[0] === $this->metaChar) { |
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| 197 | if (\trim($buffer) !== '') { |
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| 198 | throw new TemplateException('Non-blank character before $-keyword'); |
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| 199 | } |
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| 200 | if ($this->metaMatch($p, 'header')) { |
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| 201 | $this->copyHeader = true; |
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| 202 | } elseif ($this->metaMatch($p, 'endheader')) { |
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| 203 | $this->copyHeader = false; |
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| 204 | } elseif ($this->metaMatch($p, 'tailcode')) { |
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| 205 | //$this->printLine(); |
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| 206 | $tailCode = true; |
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| 207 | continue; |
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| 208 | } elseif ($this->metaMatch($p, 'verification-table')) { |
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| 209 | throw new TemplateException('verification-table is not implemented'); |
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| 210 | } elseif ($this->metaMatch($p, 'union')) { |
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| 211 | throw new TemplateException('union is not implemented'); |
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| 212 | } elseif ($this->metaMatch($p, 'tokenval')) { |
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| 213 | $tokenMode = [ |
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| 214 | 'enabled' => true, |
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| 215 | 'mac' => [], |
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| 216 | ]; |
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| 217 | } elseif ($this->metaMatch($p, 'reduce')) { |
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| 218 | $reduceMode = [ |
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| 219 | 'enabled' => true, |
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| 220 | 'm' => -1, |
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| 221 | 'n' => 0, |
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| 222 | 'mac' => [], |
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| 223 | ]; |
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| 224 | } elseif ($this->metaMatch($p, 'switch-for-token-name')) { |
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| 225 | for ($i = 0; $i < $this->context->countTerminals; $i++) { |
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| 226 | if ($this->context->cTermIndex[$i] >= 0) { |
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| 227 | $symbol = $this->context->symbol($i); |
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| 228 | $this->language->caseBlock($buffer, $symbol->value, $symbol->name); |
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| 229 | } |
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| 230 | } |
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| 231 | } elseif ($this->metaMatch($p, 'production-strings')) { |
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| 232 | foreach ($this->context->grams as $gram) { |
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| 233 | $info = \array_slice($gram->body, 0); |
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| 234 | $this->language->write($buffer.'"'); |
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| 235 | $this->language->writeQuoted($info[0]->name); |
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| 236 | $this->language->writeQuoted(' :'); |
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| 237 | if (\count($info) === 1) { |
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| 238 | $this->language->writeQuoted(' /* empty */'); |
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| 239 | } |
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| 240 | for ($i = 1; $i < \count($info); $i++) { |
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| 241 | $this->language->writeQuoted(' '.$info[$i]->name); |
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| 242 | } |
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| 243 | if ($gram->num + 1 === $this->context->countGrams) { |
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| 244 | $this->language->write("\"\n"); |
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| 245 | } else { |
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| 246 | $this->language->write("\",\n"); |
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| 247 | } |
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| 248 | } |
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| 249 | } elseif ($this->metaMatch($p, 'listvar')) { |
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| 250 | $var = \trim(\mb_substr($p, 9)); |
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| 251 | $this->genListVar($buffer, $var); |
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| 252 | } elseif ($this->metaMatch($p, 'ifnot')) { |
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| 253 | $skipMode = $skipMode || !$this->skipIf($p); |
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| 254 | } elseif ($this->metaMatch($p, 'if')) { |
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| 255 | $skipMode = $skipMode || $this->skipIf($p); |
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| 256 | } elseif ($this->metaMatch($p, 'endif')) { |
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| 257 | $skipMode = false; |
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| 258 | } else { |
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| 259 | throw new TemplateException("Unknown \$: $line"); |
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| 260 | } |
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| 261 | $lineChanged = true; |
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| 262 | } else { |
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| 263 | if ($lineChanged) { |
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| 264 | //$this->printLine(); |
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| 265 | $lineChanged = false; |
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| 266 | } |
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| 267 | $this->language->write($buffer, $this->copyHeader); |
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| 268 | } |
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| 269 | } |
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| 270 | |||
| 271 | $this->language->commit(); |
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| 272 | } |
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| 273 | |||
| 536 |
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Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it.
The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production.
This check looks for comments that seem to be mostly valid code and reports them.