return $this->configVars[$hash];
}
+ /**
+ * Recursively get all explicit and implicit dependencies for to the given module.
+ *
+ * @param array $registryData
+ * @param string $moduleName
+ * @return array
+ */
+ protected static function getImplicitDependencies( Array $registryData, $moduleName ) {
+ static $dependencyCache = array();
+
+ // The list of implicit dependencies won't be altered, so we can
+ // cache them without having to worry.
+ if ( !isset( $dependencyCache[$moduleName] ) ) {
+
+ if ( !isset( $registryData[$moduleName] ) ) {
+ // Dependencies may not exist
+ $dependencyCache[$moduleName] = array();
+ } else {
+ $data = $registryData[$moduleName];
+ $dependencyCache[$moduleName] = $data['dependencies'];
+
+ foreach ( $data['dependencies'] as $dependency ) {
+ // Recursively get the dependencies of the dependencies
+ $dependencyCache[$moduleName] = array_merge(
+ $dependencyCache[$moduleName],
+ self::getImplicitDependencies( $registryData, $dependency )
+ );
+ }
+ }
+ }
+
+ return $dependencyCache[$moduleName];
+ }
+
+ /**
+ * Optimize the dependency tree in $this->modules and return it.
+ *
+ * The optimization basically works like this:
+ * Given we have module A with the dependencies B and C
+ * and module B with the dependency C.
+ * Now we don't have to tell the client to explicitly fetch module
+ * C as that's already included in module B.
+ *
+ * This way we can reasonably reduce the amout of module registration
+ * data send to the client.
+ *
+ * @param Array &$registryData Modules keyed by name with properties:
+ * - string 'version'
+ * - array 'dependencies'
+ * - string|null 'group'
+ * - string 'source'
+ * - string|false 'loader'
+ */
+ public static function compileUnresolvedDependencies( Array &$registryData ) {
+ foreach ( $registryData as $name => &$data ) {
+ if ( $data['loader'] !== false ) {
+ continue;
+ }
+ $dependencies = $data['dependencies'];
+ foreach ( $data['dependencies'] as $dependency ) {
+ $implicitDependencies = self::getImplicitDependencies( $registryData, $dependency );
+ $dependencies = array_diff( $dependencies, $implicitDependencies );
+ }
+ // Rebuild keys
+ $data['dependencies'] = array_values( $dependencies );
+ }
+ }
+
+
/**
* Get registration code for all modules.
*
);
}
+ self::compileUnresolvedDependencies( $registryData );
+
// Register sources
$out .= ResourceLoader::makeLoaderSourcesScript( $resourceLoader->getSources() );