From 977d07a3ae47ef204665d1eda2d642e5064724f3 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 24 Jun 2019 12:01:19 +0200
Subject: Split build system into library and driver

---
 libbuild2/functions-process-path.cxx | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 libbuild2/functions-process-path.cxx

(limited to 'libbuild2/functions-process-path.cxx')

diff --git a/libbuild2/functions-process-path.cxx b/libbuild2/functions-process-path.cxx
new file mode 100644
index 0000000..65e426b
--- /dev/null
+++ b/libbuild2/functions-process-path.cxx
@@ -0,0 +1,25 @@
+// file      : libbuild2/functions-process-path.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#include <libbuild2/function.hxx>
+#include <libbuild2/variable.hxx>
+
+using namespace std;
+
+namespace build2
+{
+  void
+  process_path_functions ()
+  {
+    function_family f ("process_path");
+
+    // As discussed in value_traits<process_path>, we always have recall.
+    //
+    f["recall"] = &process_path::recall;
+    f["effect"] = [](process_path p)
+    {
+      return move (p.effect.empty () ? p.recall : p.effect);
+    };
+  }
+}
-- 
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