Added $context properties.

Author: evert

lib/Sabre/XML/Reader.php

@@ -29,6 +29,19 @@ class Reader extends XMLReader {
      */
     public $elementMap = [];
 
+    /**
+     * Context information.
+     *
+     * This array has no pre-defined meaning. It can be used by the the user to
+     * store arbitrary information.
+     *
+     * This is handy when a Property class needs access to this data. The only
+     * direct relation they have back to other objects is the Reader itself.
+     *
+     * @var array
+     */
+    public $context = [];
+
     /**
      * Returns the current nodename in clark-notation.
      *

lib/Sabre/XML/Writer.php

@@ -42,6 +42,19 @@ class Writer extends XMLWriter {
      */
     public $namespaceMap = [];
 
+    /**
+     * Context information.
+     *
+     * This array has no pre-defined meaning. It can be used by the the user to
+     * store arbitrary information.
+     *
+     * This is handy when a Property class needs access to this data. The only
+     * direct relation they have back to other objects is the Writer itself.
+     *
+     * @var array
+     */
+    public $context = [];
+
     /**
      * Any namespace that the writer is asked to write, will be added here.
      *