From 6e7be51cb5455e9c5c721d4ba5121a6ab04673dd Mon Sep 17 00:00:00 2001
From: Rico Tzschichholz <ricotz@ubuntu.com>
Date: Sat, 16 Jan 2021 17:11:14 +0100
Subject: vala: Don't allow assigning GtkChild fields/properties

These are handled exclusively by GtkBuilder

See https://gitlab.gnome.org/GNOME/vala/issues/1121
---
 vala/valaunaryexpression.vala | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'vala/valaunaryexpression.vala')

diff --git a/vala/valaunaryexpression.vala b/vala/valaunaryexpression.vala
index 76c31cd7a..4bf6d4bc4 100644
--- a/vala/valaunaryexpression.vala
+++ b/vala/valaunaryexpression.vala
@@ -229,6 +229,11 @@ public class Vala.UnaryExpression : Expression {
 				Report.error (source_reference, "ref and out method arguments can only be used with fields, parameters, local variables, and array element access");
 				return false;
 			}
+			if (inner.symbol_reference.get_attribute ("GtkChild") != null) {
+				error = true;
+				Report.error (source_reference, "Assignment of [GtkChild] `%s' is not allowed", inner.symbol_reference.get_full_name ());
+				return false;
+			}
 			break;
 		default:
 			error = true;
-- 
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