From fed0786795db4812effd995d553ae9a582c70f07 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=90=D0=BB=D0=B5=D0=BA=D1=81=D0=B0=D0=BD=D0=B4=D1=80=20?=
 =?UTF-8?q?=D0=97=D0=B5=D0=BC=D0=BB=D1=8F=D0=BA?=
 <92867056+AlexanderZemlyak@users.noreply.github.com>
Date: Fri, 16 Jan 2026 23:06:38 +0300
Subject: [PATCH] Add basic support for first_assignment_defines_type in
 Intellisense (#3376)

---
 CodeCompletion/DomSyntaxTreeVisitor.cs | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/CodeCompletion/DomSyntaxTreeVisitor.cs b/CodeCompletion/DomSyntaxTreeVisitor.cs
index 13c2b8751..82f59cc00 100644
--- a/CodeCompletion/DomSyntaxTreeVisitor.cs
+++ b/CodeCompletion/DomSyntaxTreeVisitor.cs
@@ -308,7 +308,8 @@ namespace CodeCompletion
             var co = new CompilerOptions();
             co.SavePCU = false;
             co.GenerateCode = false;
-            co.UnitSyntaxTree = cu;
+            if (!currentUnitLanguage.ApplySyntaxTreeConvertersForIntellisense)
+                co.UnitSyntaxTree = cu;
             co.SourceFileName = cu.source_context.FileName;
             co.ForIntellisense = true;
             co.SaveDocumentation = false;
@@ -488,6 +489,13 @@ namespace CodeCompletion
                     }
                 }
             }
+
+            if (_assign.first_assignment_defines_type)
+            {
+                _assign.from.visit(this);
+                var variableScope = (ElementScope)cur_scope.FindName(((ident)_assign.to).name);
+                variableScope.sc = returned_scope;
+            }
         }
 
         public override void visit(bin_expr _bin_expr)