Don't print empty location, zero line/column

1 files changed, 8 insertions, 1 deletions

diff --git a/bpkg/diagnostics.hxx b/bpkg/diagnostics.hxx
index 2816f3c..21bc157 100644
--- a/bpkg/diagnostics.hxx
+++ b/bpkg/diagnostics.hxx
@@ -95,10 +95,17 @@ namespace bpkg
   class location
   {
   public:
-    location () {}
+    // Zero lines or columns are not printed.
+    //
+    explicit
     location (string f, uint64_t l, uint64_t c)
         : file (move (f)), line (l), column (c) {}
 
+    location () = default;
+
+    bool
+    empty () const {return file.empty ();}
+
     string file;
     uint64_t line;
     uint64_t column;