From bd43c80c29a02eeebc8667cd14ccb2784e6f5534 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Fri, 12 Jul 2019 12:07:57 +0300
Subject: Implement pre-parse mode for parse_names_trailer()

---
 libbuild2/parser.hxx | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'libbuild2/parser.hxx')

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;
-- 
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