WIP SourcePluginManager

src/SourcePluginManager.php

@@ -43,12 +43,28 @@ class SourcePluginManager extends DefaultPluginManager implements ContextAwarePl
    */
   public function getDefinitionsForPropType(string $prop_type_id, array $contexts = []): array {
     $definitions = $this->getDefinitionsForContexts($contexts);
+   // $yo = $this->
     $definitions = array_filter($definitions, function ($definition) use ($prop_type_id) {
       return in_array($prop_type_id, $definition['prop_types']);
     });
     return $definitions;
   }
 
+  /**
+   * ...
+   */
+  protected function getConvertibleDefinitions(string $prop_type_id, array $contexts = []): array {
+    $definitions = [];
+    $prop_type_definition = $this->prop_type_manager->getDefinition($prop_type_id);
+    if (!isset($prop_type_definition['convert_from'])) {
+      return [];
+    }
+    foreach ($prop_type_definition['convert_from'] as $convertible_prop_type_id) {
+      $definitions[$convertible_prop_type_id]) = $this->getDefinitionsForPropType($convertible_prop_type_id, $contexts); 
+    }
+    return $definitions;
+  }
+
   /**
    * Returns the default source identifier for a prop type.
    */