Determines if a constraint is satisfied by earlier versions of Drupal 8.

Parameters

string $constraint: A core semantic version constraint.

string $version: A core version.

Return value

bool TRUE if the constraint is satisfied by a core version prior to the provided version.

File

core/lib/Drupal/Core/Extension/InfoParserDynamic.php, line 155

Class

InfoParserDynamic

Parses dynamic .info.yml files that might change during the page request.

Namespace

Drupal\Core\Extension

Code

protected static function isConstraintSatisfiedByPreviousVersion($constraint, $version) {
  static $evaluated_constraints = [];
  // Any particular constraint and version combination only needs to be
  // evaluated once.
  if (!isset($evaluated_constraints[$constraint][$version])) {
    $evaluated_constraints[$constraint][$version] = FALSE;
    foreach (static::getAllPreviousCoreVersions($version) as $previous_version) {
      if (Semver::satisfies($previous_version, $constraint)) {
        $evaluated_constraints[$constraint][$version] = TRUE;
        // The constraint only has to satisfy one previous version so break
        // when the first one is found.
        break;

      }
    }
  }
  return $evaluated_constraints[$constraint][$version];
}

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