From e21f9ae1a3e36160259a449e06ff52692e58b28c Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 12 Jan 2021 10:28:29 +0200
Subject: Diagnose typed and project-qualified empty names

---
 libbuild2/file.cxx | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'libbuild2/file.cxx')

diff --git a/libbuild2/file.cxx b/libbuild2/file.cxx
index 396b0fe..5d1487f 100644
--- a/libbuild2/file.cxx
+++ b/libbuild2/file.cxx
@@ -2549,6 +2549,11 @@ namespace build2
     context& ctx (base.ctx);
     assert (ctx.phase == run_phase::load);
 
+    // Validate the name.
+    //
+    if (tgt.qualified () && tgt.empty ())
+      fail (loc) << "project-qualified empty name " << tgt;
+
     // If metadata is requested, delegate to import_direct() which will lookup
     // the target and verify the metadata was loaded.
     //
-- 
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