From fd1818e7cc30a928859a82e910f7c2825e585352 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Thu, 9 Dec 2021 13:10:10 +0300
Subject: Adjust types for future support of multiple requirements in an
 alternative

---
 libbpkg/manifest.hxx | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

(limited to 'libbpkg/manifest.hxx')

diff --git a/libbpkg/manifest.hxx b/libbpkg/manifest.hxx
index ef44fcb..08f8a8e 100644
--- a/libbpkg/manifest.hxx
+++ b/libbpkg/manifest.hxx
@@ -504,7 +504,26 @@ namespace bpkg
 
   // requires
   //
-  class requirement_alternatives: public butl::small_vector<std::string, 1>
+  class requirement_alternative: public butl::small_vector<std::string, 1>
+  {
+  public:
+    butl::optional<std::string> enable;
+
+    requirement_alternative () = default;
+    requirement_alternative (butl::optional<std::string> e)
+        : enable (std::move (e)) {}
+
+    // Parse the requirement alternative string representation.
+    //
+    explicit LIBBPKG_EXPORT
+    requirement_alternative (const std::string&);
+
+    LIBBPKG_EXPORT std::string
+    string () const;
+  };
+
+  class requirement_alternatives:
+    public butl::small_vector<requirement_alternative, 1>
   {
   public:
     bool conditional;
@@ -517,7 +536,7 @@ namespace bpkg
 
     // Parse the requirement alternatives string representation in the
     // `[?] [<requirement> [ '|' <requirement>]*] [; <comment>]` form. Throw
-    // std::invalid_argument if the value is invalid.
+    // std::invalid_argument if the value is invalid. @@ DEP @@ TMP update.
     //
     explicit LIBBPKG_EXPORT
     requirement_alternatives (const std::string&);
-- 
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