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<?php |
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namespace HumbugBox451\Composer\Semver; |
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use HumbugBox451\Composer\Semver\Constraint\Constraint; |
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use HumbugBox451\Composer\Semver\Constraint\ConstraintInterface; |
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use HumbugBox451\Composer\Semver\Constraint\MatchAllConstraint; |
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use HumbugBox451\Composer\Semver\Constraint\MatchNoneConstraint; |
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use HumbugBox451\Composer\Semver\Constraint\MultiConstraint; |
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/** @internal */ |
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class Intervals |
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{ |
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/** |
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@phpstan-var |
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*/ |
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private static $intervalsCache = array(); |
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/** |
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@phpstan-var |
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*/ |
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private static $opSortOrder = array('>=' => -3, '<' => -2, '>' => 2, '<=' => 3); |
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public static function clear() |
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{ |
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self::$intervalsCache = array(); |
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} |
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public static function isSubsetOf(ConstraintInterface $candidate, ConstraintInterface $constraint) |
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{ |
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if ($constraint instanceof MatchAllConstraint) { |
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return \true; |
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} |
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if ($candidate instanceof MatchNoneConstraint || $constraint instanceof MatchNoneConstraint) { |
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return \false; |
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} |
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$intersectionIntervals = self::get(new MultiConstraint(array($candidate, $constraint), \true)); |
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$candidateIntervals = self::get($candidate); |
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if (\count($intersectionIntervals['numeric']) !== \count($candidateIntervals['numeric'])) { |
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return \false; |
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} |
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foreach ($intersectionIntervals['numeric'] as $index => $interval) { |
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if (!isset($candidateIntervals['numeric'][$index])) { |
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return \false; |
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} |
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if ((string) $candidateIntervals['numeric'][$index]->getStart() !== (string) $interval->getStart()) { |
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return \false; |
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} |
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if ((string) $candidateIntervals['numeric'][$index]->getEnd() !== (string) $interval->getEnd()) { |
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return \false; |
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} |
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} |
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if ($intersectionIntervals['branches']['exclude'] !== $candidateIntervals['branches']['exclude']) { |
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return \false; |
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} |
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if (\count($intersectionIntervals['branches']['names']) !== \count($candidateIntervals['branches']['names'])) { |
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return \false; |
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} |
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foreach ($intersectionIntervals['branches']['names'] as $index => $name) { |
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if ($name !== $candidateIntervals['branches']['names'][$index]) { |
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return \false; |
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} |
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} |
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return \true; |
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} |
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public static function haveIntersections(ConstraintInterface $a, ConstraintInterface $b) |
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{ |
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if ($a instanceof MatchAllConstraint || $b instanceof MatchAllConstraint) { |
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return \true; |
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} |
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if ($a instanceof MatchNoneConstraint || $b instanceof MatchNoneConstraint) { |
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return \false; |
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} |
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$intersectionIntervals = self::generateIntervals(new MultiConstraint(array($a, $b), \true), \true); |
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return \count($intersectionIntervals['numeric']) > 0 || $intersectionIntervals['branches']['exclude'] || \count($intersectionIntervals['branches']['names']) > 0; |
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} |
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public static function compactConstraint(ConstraintInterface $constraint) |
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{ |
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if (!$constraint instanceof MultiConstraint) { |
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return $constraint; |
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} |
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$intervals = self::generateIntervals($constraint); |
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$constraints = array(); |
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$hasNumericMatchAll = \false; |
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if (\count($intervals['numeric']) === 1 && (string) $intervals['numeric'][0]->getStart() === (string) Interval::fromZero() && (string) $intervals['numeric'][0]->getEnd() === (string) Interval::untilPositiveInfinity()) { |
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$constraints[] = $intervals['numeric'][0]->getStart(); |
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$hasNumericMatchAll = \true; |
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} else { |
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$unEqualConstraints = array(); |
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for ($i = 0, $count = \count($intervals['numeric']); $i < $count; $i++) { |
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$interval = $intervals['numeric'][$i]; |
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if ($interval->getEnd()->getOperator() === '<' && $i + 1 < $count) { |
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$nextInterval = $intervals['numeric'][$i + 1]; |
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if ($interval->getEnd()->getVersion() === $nextInterval->getStart()->getVersion() && $nextInterval->getStart()->getOperator() === '>') { |
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if (\count($unEqualConstraints) === 0 && (string) $interval->getStart() !== (string) Interval::fromZero()) { |
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$unEqualConstraints[] = $interval->getStart(); |
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} |
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$unEqualConstraints[] = new Constraint('!=', $interval->getEnd()->getVersion()); |
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continue; |
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} |
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} |
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if (\count($unEqualConstraints) > 0) { |
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if ((string) $interval->getEnd() !== (string) Interval::untilPositiveInfinity()) { |
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$unEqualConstraints[] = $interval->getEnd(); |
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} |
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if (\count($unEqualConstraints) > 1) { |
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$constraints[] = new MultiConstraint($unEqualConstraints, \true); |
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} else { |
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$constraints[] = $unEqualConstraints[0]; |
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} |
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$unEqualConstraints = array(); |
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continue; |
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} |
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if ($interval->getStart()->getVersion() === $interval->getEnd()->getVersion() && $interval->getStart()->getOperator() === '>=' && $interval->getEnd()->getOperator() === '<=') { |
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$constraints[] = new Constraint('==', $interval->getStart()->getVersion()); |
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continue; |
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} |
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if ((string) $interval->getStart() === (string) Interval::fromZero()) { |
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$constraints[] = $interval->getEnd(); |
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} elseif ((string) $interval->getEnd() === (string) Interval::untilPositiveInfinity()) { |
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$constraints[] = $interval->getStart(); |
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} else { |
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$constraints[] = new MultiConstraint(array($interval->getStart(), $interval->getEnd()), \true); |
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} |
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} |
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} |
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$devConstraints = array(); |
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if (0 === \count($intervals['branches']['names'])) { |
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if ($intervals['branches']['exclude']) { |
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if ($hasNumericMatchAll) { |
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return new MatchAllConstraint(); |
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} |
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} |
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} else { |
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foreach ($intervals['branches']['names'] as $branchName) { |
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if ($intervals['branches']['exclude']) { |
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$devConstraints[] = new Constraint('!=', $branchName); |
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} else { |
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$devConstraints[] = new Constraint('==', $branchName); |
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} |
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} |
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if ($intervals['branches']['exclude']) { |
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if (\count($constraints) > 1) { |
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return new MultiConstraint(\array_merge(array(new MultiConstraint($constraints, \false)), $devConstraints), \true); |
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} |
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if (\count($constraints) === 1 && (string) $constraints[0] === (string) Interval::fromZero()) { |
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if (\count($devConstraints) > 1) { |
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return new MultiConstraint($devConstraints, \true); |
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} |
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return $devConstraints[0]; |
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} |
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return new MultiConstraint(\array_merge($constraints, $devConstraints), \true); |
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} |
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$constraints = \array_merge($constraints, $devConstraints); |
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} |
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if (\count($constraints) > 1) { |
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return new MultiConstraint($constraints, \false); |
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} |
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if (\count($constraints) === 1) { |
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return $constraints[0]; |
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} |
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return new MatchNoneConstraint(); |
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} |
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/** |
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@phpstan-return |
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*/ |
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public static function get(ConstraintInterface $constraint) |
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{ |
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$key = (string) $constraint; |
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if (!isset(self::$intervalsCache[$key])) { |
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self::$intervalsCache[$key] = self::generateIntervals($constraint); |
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} |
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return self::$intervalsCache[$key]; |
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} |
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/** |
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@phpstan-return |
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*/ |
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private static function generateIntervals(ConstraintInterface $constraint, $stopOnFirstValidInterval = \false) |
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{ |
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if ($constraint instanceof MatchAllConstraint) { |
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return array('numeric' => array(new Interval(Interval::fromZero(), Interval::untilPositiveInfinity())), 'branches' => Interval::anyDev()); |
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} |
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if ($constraint instanceof MatchNoneConstraint) { |
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return array('numeric' => array(), 'branches' => array('names' => array(), 'exclude' => \false)); |
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} |
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if ($constraint instanceof Constraint) { |
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return self::generateSingleConstraintIntervals($constraint); |
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} |
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if (!$constraint instanceof MultiConstraint) { |
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throw new \UnexpectedValueException('The constraint passed in should be an MatchAllConstraint, Constraint or MultiConstraint instance, got ' . \get_class($constraint) . '.'); |
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} |
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$constraints = $constraint->getConstraints(); |
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$numericGroups = array(); |
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$constraintBranches = array(); |
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foreach ($constraints as $c) { |
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$res = self::get($c); |
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$numericGroups[] = $res['numeric']; |
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$constraintBranches[] = $res['branches']; |
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} |
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if ($constraint->isDisjunctive()) { |
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$branches = Interval::noDev(); |
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foreach ($constraintBranches as $b) { |
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if ($b['exclude']) { |
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if ($branches['exclude']) { |
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$branches['names'] = \array_intersect($branches['names'], $b['names']); |
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} else { |
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$branches['exclude'] = \true; |
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$branches['names'] = \array_diff($b['names'], $branches['names']); |
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} |
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} else { |
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if ($branches['exclude']) { |
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$branches['names'] = \array_diff($branches['names'], $b['names']); |
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} else { |
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$branches['names'] = \array_merge($branches['names'], $b['names']); |
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} |
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} |
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} |
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} else { |
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$branches = Interval::anyDev(); |
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foreach ($constraintBranches as $b) { |
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if ($b['exclude']) { |
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if ($branches['exclude']) { |
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$branches['names'] = \array_merge($branches['names'], $b['names']); |
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} else { |
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$branches['names'] = \array_diff($branches['names'], $b['names']); |
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} |
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} else { |
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if ($branches['exclude']) { |
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$branches['names'] = \array_diff($b['names'], $branches['names']); |
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$branches['exclude'] = \false; |
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} else { |
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$branches['names'] = \array_intersect($branches['names'], $b['names']); |
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} |
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} |
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} |
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} |
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$branches['names'] = \array_unique($branches['names']); |
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if (\count($numericGroups) === 1) { |
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return array('numeric' => $numericGroups[0], 'branches' => $branches); |
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} |
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$borders = array(); |
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foreach ($numericGroups as $group) { |
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foreach ($group as $interval) { |
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$borders[] = array('version' => $interval->getStart()->getVersion(), 'operator' => $interval->getStart()->getOperator(), 'side' => 'start'); |
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$borders[] = array('version' => $interval->getEnd()->getVersion(), 'operator' => $interval->getEnd()->getOperator(), 'side' => 'end'); |
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} |
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} |
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$opSortOrder = self::$opSortOrder; |
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\usort($borders, function ($a, $b) use($opSortOrder) { |
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$order = \version_compare($a['version'], $b['version']); |
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if ($order === 0) { |
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return $opSortOrder[$a['operator']] - $opSortOrder[$b['operator']]; |
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} |
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return $order; |
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}); |
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$activeIntervals = 0; |
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$intervals = array(); |
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$index = 0; |
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$activationThreshold = $constraint->isConjunctive() ? \count($numericGroups) : 1; |
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$start = null; |
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foreach ($borders as $border) { |
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if ($border['side'] === 'start') { |
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$activeIntervals++; |
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} else { |
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$activeIntervals--; |
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} |
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if (!$start && $activeIntervals >= $activationThreshold) { |
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$start = new Constraint($border['operator'], $border['version']); |
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} elseif ($start && $activeIntervals < $activationThreshold) { |
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if (\version_compare($start->getVersion(), $border['version'], '=') && ($start->getOperator() === '>' && $border['operator'] === '<=' || $start->getOperator() === '>=' && $border['operator'] === '<')) { |
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unset($intervals[$index]); |
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} else { |
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$intervals[$index] = new Interval($start, new Constraint($border['operator'], $border['version'])); |
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270
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$index++; |
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if ($stopOnFirstValidInterval) { |
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break; |
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} |
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} |
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$start = null; |
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} |
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} |
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return array('numeric' => $intervals, 'branches' => $branches); |
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} |
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/** |
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@phpstan-return |
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282
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*/ |
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283
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private static function generateSingleConstraintIntervals(Constraint $constraint) |
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{ |
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$op = $constraint->getOperator(); |
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286
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if (\strpos($constraint->getVersion(), 'dev-') === 0) { |
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$intervals = array(); |
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288
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$branches = array('names' => array(), 'exclude' => \false); |
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289
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if ($op === '!=') { |
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$intervals[] = new Interval(Interval::fromZero(), Interval::untilPositiveInfinity()); |
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$branches = array('names' => array($constraint->getVersion()), 'exclude' => \true); |
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} elseif ($op === '==') { |
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$branches['names'][] = $constraint->getVersion(); |
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|
} |
|
295
|
|
|
return array('numeric' => $intervals, 'branches' => $branches); |
|
296
|
|
|
} |
|
297
|
|
|
if ($op[0] === '>') { |
|
298
|
|
|
return array('numeric' => array(new Interval($constraint, Interval::untilPositiveInfinity())), 'branches' => Interval::noDev()); |
|
299
|
|
|
} |
|
300
|
|
|
if ($op[0] === '<') { |
|
301
|
|
|
return array('numeric' => array(new Interval(Interval::fromZero(), $constraint)), 'branches' => Interval::noDev()); |
|
302
|
|
|
} |
|
303
|
|
|
if ($op === '!=') { |
|
304
|
|
|
return array('numeric' => array(new Interval(Interval::fromZero(), new Constraint('<', $constraint->getVersion())), new Interval(new Constraint('>', $constraint->getVersion()), Interval::untilPositiveInfinity())), 'branches' => Interval::anyDev()); |
|
305
|
|
|
} |
|
306
|
|
|
return array('numeric' => array(new Interval(new Constraint('>=', $constraint->getVersion()), new Constraint('<=', $constraint->getVersion()))), 'branches' => Interval::noDev()); |
|
307
|
|
|
} |
|
308
|
|
|
} |
|
309
|
|
|
|
humbug /
box
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