From 89f8e08550d437eedd16f6aa0cc5333a7db75bea Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 1 Nov 2016 14:20:49 +0200
Subject: Establish testscript builtins infrastructure

---
 build2/test/script/builtin.cxx | 67 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 build2/test/script/builtin.cxx

(limited to 'build2/test/script/builtin.cxx')

diff --git a/build2/test/script/builtin.cxx b/build2/test/script/builtin.cxx
new file mode 100644
index 0000000..f3a0bd4
--- /dev/null
+++ b/build2/test/script/builtin.cxx
@@ -0,0 +1,67 @@
+// file      : build2/test/script/builtin.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#include <build2/test/script/builtin>
+
+#include <butl/fdstream>
+
+using namespace std;
+using namespace butl;
+
+namespace build2
+{
+  //@@ auto_fd handover
+  //
+  // 1. We need auto_fd in libbutl
+  // 2. Overload fdstream ctors for auto_fd&& (or replace? also process data
+  //    members?)
+  // 3. The builtin signature then will become:
+  //
+  // static int
+  // echo (const strings& args, auto_fd in, auto_fd out, auto_fd err)
+
+  static int
+  echo (const strings& args, int in_fd, int out_fd, int err_fd)
+  try
+  {
+    int r (0);
+    ofdstream cerr (err_fd);
+
+    try
+    {
+      fdclose (in_fd); //@@ TMP
+      ofdstream cout (out_fd);
+
+      for (auto b (args.begin ()), i (b), e (args.end ()); i != e; ++i)
+        cout << (i != b ? " " : "") << *i;
+
+      cout << endl;
+
+      cout.close ();
+    }
+    catch (const std::exception& e)
+    {
+      cerr << "echo: " << e.what ();
+      r = 1;
+    }
+
+    cerr.close ();
+    return r;
+  }
+  catch (const std::exception&)
+  {
+    return 1;
+  }
+
+  namespace test
+  {
+    namespace script
+    {
+      const builtin_map builtins
+      {
+        {"echo", &echo}
+      };
+    }
+  }
+}
-- 
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