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<?php |
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/** |
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* @copyright (c) 2014-2017 brian ridley |
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* @author brian ridley <[email protected]> |
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* @license http://opensource.org/licenses/MIT MIT |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace ptlis\SemanticVersion\Version; |
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use ptlis\SemanticVersion\Parse\Token; |
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use ptlis\SemanticVersion\Version\Label\LabelBuilder; |
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/** |
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* Immutable builder for version instances. |
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*/ |
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final class VersionBuilder |
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{ |
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/** |
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* @var LabelBuilder |
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*/ |
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private $labelBuilder; |
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/** |
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* Constructor. |
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* |
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* @param LabelBuilder $labelBuilder |
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*/ |
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public function __construct(LabelBuilder $labelBuilder) |
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{ |
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$this->labelBuilder = $labelBuilder; |
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} |
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/** |
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* Build a label from a token list. |
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* |
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* @param Token[] $versionTokenList |
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* @param Token[] $labelTokenList |
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* |
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* @return VersionInterface|null |
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*/ |
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public function buildFromTokens(array $versionTokenList, array $labelTokenList) |
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{ |
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$minor = 0; |
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$patch = 0; |
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$label = null; |
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switch (count($versionTokenList)) { |
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// Major Only |
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5 |
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case 1: |
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1 |
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$major = $versionTokenList[0]->getValue(); |
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1 |
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break; |
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// Major, minor |
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4 |
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case 3: |
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1 |
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$major = $versionTokenList[0]->getValue(); |
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1 |
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$minor = $versionTokenList[2]->getValue(); |
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1 |
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break; |
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// Major, minor, patch |
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3 |
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case 5: |
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2 |
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$major = $versionTokenList[0]->getValue(); |
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2 |
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$minor = $versionTokenList[2]->getValue(); |
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2 |
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$patch = $versionTokenList[4]->getValue(); |
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2 |
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break; |
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default: |
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1 |
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throw new \RuntimeException('Invalid version'); |
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} |
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return new Version( |
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$major, |
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$minor, |
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$patch, |
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4 |
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$this->labelBuilder->buildFromTokens($labelTokenList) |
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); |
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} |
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} |
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This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.