[vala/1270-remove-static-codecontext-access: 22/44] CodeNode: add CodeContext property

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit f6742a9f9964f0e4472e3799a0582b15190b28b7
Author: Daniel Espinosa <esodan gmail com>
Date:   Sat Jan 1 22:05:17 2022 -0600

    CodeNode: add CodeContext property

 vala/valacodenode.vala | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
---
diff --git a/vala/valacodenode.vala b/vala/valacodenode.vala
index 4ca44c8d9..52757d9b6 100644
--- a/vala/valacodenode.vala
+++ b/vala/valacodenode.vala
@@ -29,6 +29,10 @@ using GLib;
  * compilation process.
  */
 public abstract class Vala.CodeNode {
+       /**
+        * Current context.
+        */
+       public weak CodeContext context { get; protected set; }
        /**
         * Parent of this code node.
         */
@@ -429,6 +433,28 @@ public abstract class Vala.CodeNode {
        public virtual void get_error_types (Collection<DataType> collection, SourceReference? 
source_reference = null) {
        }
 
+       /**
+        * Traverse tree for the current {@link CodeContext}
+        */
+       public CodeContext traverse_for_context () {
+               CodeContext ctx = null;
+               if (this is Namespace) {
+                       ctx = this.context;
+               }
+
+               CodeNode parent = parent_node;
+               while (ctx == null) {
+                       parent = parent.parent_node;
+                       if (parent == null) {
+                               break;
+                       }
+
+                       ctx = parent.context;
+               }
+
+               return ctx;
+       }
+
        public static string get_temp_name () {
                return "." + (++last_temp_nr).to_string ();
        }