From b27872d5c5bfecae74195771f5c1f4e73385b6d6 Mon Sep 17 00:00:00 2001
From: Eugen Wissner <belka@caraus.de>
Date: Tue, 8 Sep 2026 21:14:03 +0200
Subject: Fix ICE with offset trait and non-type identifier

---
 boot/type_check.cc | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'boot')

diff --git a/boot/type_check.cc b/boot/type_check.cc
index ab22a1c..5078da1 100644
--- a/boot/type_check.cc
+++ b/boot/type_check.cc
@@ -17,6 +17,7 @@ along with GCC; see the file COPYING3.  If not see
 
 #include "elna/boot/type_check.h"
 #include "elna/boot/evaluator.h"
+#include "elna/boot/name_analysis.h"
 
 #include <ranges>
 #include <utility>
@@ -1738,7 +1739,20 @@ namespace elna::boot
                 add_error<trait_error>(trait->name.position(), trait->name.name(),
                         trait_error::unsupported_type{ trait->types.front() });
             }
-            else if (trait->arguments.at(1)->is_named() == nullptr)
+            else if (auto *field = trait->arguments.at(1)->is_named())
+            {
+                if (erase_generic(trait->types.front()).get<record_type>() == nullptr)
+                {
+                    add_error<trait_error>(trait->name.position(), trait->name.name(),
+                            trait_error::unsupported_type{ trait->types.front() });
+                }
+                else if (lookup_field(trait->types.front(), field->name).empty())
+                {
+                    add_error<member_error>(field->position(), field->name,
+                            trait->types.front(), member_error::kind::not_found);
+                }
+            }
+            else
             {
                 add_error<trait_error>(trait->arguments.at(1)->position(), trait->name.name(),
                         trait_error::offset_not_field_name{});
-- 
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