function Intervals::isSubsetOf

Checks whether $candidate is a subset of $constraint

Return value

bool

2 calls to Intervals::isSubsetOf()

PoolBuilder::markPackageNameForLoading in vendor/composer/composer/src/Composer/DependencyResolver/PoolBuilder.php

VersionBumper::bumpRequirement in vendor/composer/composer/src/Composer/Package/Version/VersionBumper.php

Given a constraint, this returns a new constraint with the lower bound bumped to match the given package's version.

File

vendor/composer/semver/src/Intervals.php, line 64

Class

Intervals

Helper class generating intervals from constraints

Namespace

Composer\Semver

Code

public static function isSubsetOf(ConstraintInterface $candidate, ConstraintInterface $constraint) {
    if ($constraint instanceof MatchAllConstraint) {
        return true;
    }
    if ($candidate instanceof MatchNoneConstraint || $constraint instanceof MatchNoneConstraint) {
        return false;
    }
    $intersectionIntervals = self::get(new MultiConstraint(array(
        $candidate,
        $constraint,
    ), true));
    $candidateIntervals = self::get($candidate);
    if (\count($intersectionIntervals['numeric']) !== \count($candidateIntervals['numeric'])) {
        return false;
    }
    foreach ($intersectionIntervals['numeric'] as $index => $interval) {
        if (!isset($candidateIntervals['numeric'][$index])) {
            return false;
        }
        if ((string) $candidateIntervals['numeric'][$index]->getStart() !== (string) $interval->getStart()) {
            return false;
        }
        if ((string) $candidateIntervals['numeric'][$index]->getEnd() !== (string) $interval->getEnd()) {
            return false;
        }
    }
    if ($intersectionIntervals['branches']['exclude'] !== $candidateIntervals['branches']['exclude']) {
        return false;
    }
    if (\count($intersectionIntervals['branches']['names']) !== \count($candidateIntervals['branches']['names'])) {
        return false;
    }
    foreach ($intersectionIntervals['branches']['names'] as $index => $name) {
        if ($name !== $candidateIntervals['branches']['names'][$index]) {
            return false;
        }
    }
    return true;
}