libcmd/repl.cc: Explain evalString call and defend

2024-07-15 19:23:23 +02:00
parent 21817473e8
commit ac89df815d
1 changed files with 6 additions and 1 deletions
--- a/src/libcmd/repl.cc
+++ b/src/libcmd/repl.cc
@@ -632,8 +632,13 @@ ProcessLineResult NixRepl::processLine(std::string line)
            assert(attrs);
            auto attr = attrs->get(name);
            if (!attr) {
-                // Trigger the normal error
+                // When missing, trigger the normal exception
+                // e.g. :doc builtins.foo
+                // behaves like
+                // nix-repl> builtins.foo      
+                // error: attribute 'foo' missing
                evalString(arg, v);
+                assert(false);
            }
            if (attr->pos) {
                fallbackPos = attr->pos;