From 9ec2bdd87659438b4aa021a10c4a4977ef77118e Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 5 Jun 2020 06:36:30 +0200
Subject: Add ability to specify ad hoc recipe actions

We are reusing the buildspec syntax for that.
---
 libbuild2/buildspec.cxx | 109 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 libbuild2/buildspec.cxx

(limited to 'libbuild2/buildspec.cxx')

diff --git a/libbuild2/buildspec.cxx b/libbuild2/buildspec.cxx
new file mode 100644
index 0000000..bd580ca
--- /dev/null
+++ b/libbuild2/buildspec.cxx
@@ -0,0 +1,109 @@
+// file      : libbuild2/buildspec.cxx -*- C++ -*-
+// license   : MIT; see accompanying LICENSE file
+
+#include <libbuild2/buildspec.hxx>
+
+#include <libbuild2/diagnostics.hxx>
+
+using namespace std;
+
+namespace build2
+{
+  ostream&
+  operator<< (ostream& os, const targetspec& s)
+  {
+    if (!s.src_base.empty ())
+    {
+      // Avoid printing './' in './@...', similar to what we do for the
+      // {target,prerequisite}_key.
+      //
+      if (stream_verb (os).path < 1)
+      {
+        const string& r (diag_relative (s.src_base, false));
+
+        if (!r.empty ())
+          os << r << '@';
+      }
+      else
+        os << s.src_base << '@';
+    }
+
+    os << s.name;
+    return os;
+  }
+
+  ostream&
+  operator<< (ostream& os, const opspec& s)
+  {
+    bool hn (!s.name.empty ());
+    bool ht (!s.empty ());
+
+    os << (hn ? "\"" : "") << s.name << (hn ? "\"" : "");
+
+    if (hn && ht)
+      os << '(';
+
+    for (auto b (s.begin ()), i (b); i != s.end (); ++i)
+      os << (i != b ? " " : "") << *i;
+
+    for (const value& v: s.params)
+    {
+      os << ", ";
+
+      if (v)
+      {
+        names storage;
+        os << reverse (v, storage);
+      }
+      else
+        os << "[null]";
+    }
+
+    if (hn && ht)
+      os << ')';
+
+    return os;
+  }
+
+  ostream&
+  operator<< (ostream& os, const metaopspec& s)
+  {
+    bool hn (!s.name.empty ());
+    bool ho (!s.empty ());
+
+    os << (hn ? "\'" : "") << s.name << (hn ? "\'" : "");
+
+    if (hn && ho)
+      os << '(';
+
+    for (auto b (s.begin ()), i (b); i != s.end (); ++i)
+      os << (i != b ? " " : "") << *i;
+
+    for (const value& v: s.params)
+    {
+      os << ", ";
+
+      if (v)
+      {
+        names storage;
+        os << reverse (v, storage);
+      }
+      else
+        os << "[null]";
+    }
+
+    if (hn && ho)
+      os << ')';
+
+    return os;
+  }
+
+  ostream&
+  operator<< (ostream& os, const buildspec& s)
+  {
+    for (auto b (s.begin ()), i (b); i != s.end (); ++i)
+      os << (i != b ? " " : "") << *i;
+
+    return os;
+  }
+}
-- 
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