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-rw-r--r--libbuild2/parser.hxx3
1 files changed, 3 insertions, 0 deletions
diff --git a/libbuild2/parser.hxx b/libbuild2/parser.hxx
index 658f266..79cbead 100644
--- a/libbuild2/parser.hxx
+++ b/libbuild2/parser.hxx
@@ -333,6 +333,9 @@ namespace build2
// it is the result of a sole, unquoted variable expansion, function call,
// or context evaluation.
//
+ // In the pre-parse mode no names are appended and the result is always
+ // {true, nullptr, nullopt}.
+ //
struct parse_names_result
{
bool not_null;