From ce29e3d72ded432b9ac9354ac92c588142de9b89 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 20 Mar 2020 08:40:59 +0200
Subject: Lexer support for default value assignment (?=)

Note: not yet supported in the parser.
---
 libbuild2/token.cxx | 1 +
 1 file changed, 1 insertion(+)

(limited to 'libbuild2/token.cxx')

diff --git a/libbuild2/token.cxx b/libbuild2/token.cxx
index 0f9a189..4975a02 100644
--- a/libbuild2/token.cxx
+++ b/libbuild2/token.cxx
@@ -41,6 +41,7 @@ namespace build2
     case token_type::assign:         os << q << '='  << q; break;
     case token_type::prepend:        os << q << "=+" << q; break;
     case token_type::append:         os << q << "+=" << q; break;
+    case token_type::default_assign: os << q << "?=" << q; break;
 
     case token_type::equal:          os << q << "==" << q; break;
     case token_type::not_equal:      os << q << "!=" << q; break;
-- 
cgit v1.1