From 94b6103c6c3475e3bf10eb905d504a5d239305b7 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 21 Feb 2024 13:55:45 +0200
Subject: Improve diagnostics

---
 libbuild2/parser.cxx | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'libbuild2/parser.cxx')

diff --git a/libbuild2/parser.cxx b/libbuild2/parser.cxx
index 5572104..2623bf3 100644
--- a/libbuild2/parser.cxx
+++ b/libbuild2/parser.cxx
@@ -6257,7 +6257,7 @@ namespace build2
                           type kind)
   {
     attributes as (attributes_pop ());
-    const location& l (as.loc);
+    const location& l (as.loc); // This points to value if no attributes.
 
     // Essentially this is an attribute-augmented assign/append/prepend.
     //
@@ -6376,6 +6376,17 @@ namespace build2
     }
     else
     {
+      auto df = make_diag_frame (
+        [this, var, &l](const diag_record& dr)
+        {
+          if (!l.empty ())
+          {
+            dr << info (l);
+            if (var != nullptr) dr << "variable " << var->name << ' ';
+            dr << "value is assigned here";
+          }
+        });
+
       if (kind == type::assign)
       {
         if (rhs)
-- 
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