From 8caa111ec27dc21973b764d9892e7100f4bd2628 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 13 Oct 2016 15:50:16 +0200
Subject: Add testscript runner interface and implementation stub

---
 build2/buildfile              |  1 +
 build2/test/script/parser     | 10 ++++++++--
 build2/test/script/parser.cxx | 26 ++++++++++++++++++--------
 build2/test/script/runner     | 36 ++++++++++++++++++++++++++++++++++++
 build2/test/script/runner.cxx | 22 ++++++++++++++++++++++
 5 files changed, 85 insertions(+), 10 deletions(-)
 create mode 100644 build2/test/script/runner
 create mode 100644 build2/test/script/runner.cxx

diff --git a/build2/buildfile b/build2/buildfile
index 6e71856..28d9b38 100644
--- a/build2/buildfile
+++ b/build2/buildfile
@@ -77,6 +77,7 @@ exe{b}:                                           \
        test/{hxx         cxx}{ rule             } \
 test/script/{hxx         cxx}{ lexer            } \
 test/script/{hxx         cxx}{ parser           } \
+test/script/{hxx         cxx}{ runner           } \
 test/script/{hxx         cxx}{ script           } \
                                $libs
 
diff --git a/build2/test/script/parser b/build2/test/script/parser
index 0ba4710..55dc003 100644
--- a/build2/test/script/parser
+++ b/build2/test/script/parser
@@ -21,14 +21,19 @@ namespace build2
     namespace script
     {
       class lexer;
+      class runner;
 
       class parser: protected build2::parser
       {
       public:
         // Issue diagnostics and throw failed in case of an error.
         //
-        script
-        parse (istream&, const path& name, target& test, target& script);
+        void
+        parse (istream&,
+               const path& name,
+               target& test,
+               target& script,
+               runner&);
 
         // Recursive descent parser.
         //
@@ -60,6 +65,7 @@ namespace build2
 
         lexer* lexer_;
         script* script_;
+        runner* runner_;
       };
     }
   }
diff --git a/build2/test/script/parser.cxx b/build2/test/script/parser.cxx
index ce867b3..b99ab09 100644
--- a/build2/test/script/parser.cxx
+++ b/build2/test/script/parser.cxx
@@ -5,6 +5,7 @@
 #include <build2/test/script/parser>
 
 #include <build2/test/script/lexer>
+#include <build2/test/script/runner>
 
 using namespace std;
 
@@ -16,8 +17,12 @@ namespace build2
     {
       using type = token_type;
 
-      script parser::
-      parse (istream& is, const path& p, target& test_t, target& script_t)
+      void parser::
+      parse (istream& is,
+             const path& p,
+             target& test_t,
+             target& script_t,
+             runner& r)
       {
         path_ = &p;
 
@@ -25,8 +30,10 @@ namespace build2
         lexer_ = &l;
         base_parser::lexer_ = &l;
 
-        script r (test_t, script_t);
-        script_ = &r;
+        script s (test_t, script_t);
+        script_ = &s;
+
+        runner_ = &r;
 
         token t (type::eos, false, 0, 0);
         type tt;
@@ -36,8 +43,6 @@ namespace build2
 
         if (tt != type::eos)
           fail (t) << "unexpected " << t;
-
-        return r;
       }
 
       void parser::
@@ -498,8 +503,7 @@ namespace build2
         expire_mode (); // Done parsing test-line.
 
         // Parse here-document fragments in the order they were mentioned on
-        // the command line. The end marker is temporarily stored as the
-        // redirect's value.
+        // the command line.
         //
         if (!hd.empty ())
         {
@@ -509,11 +513,17 @@ namespace build2
           mode (lexer_mode::here_line);
           next (t, tt);
 
+          // The end marker is temporarily stored as the redirect's value.
+          //
           for (redirect& r: hd)
             r.value = parse_here_document (t, tt, r.value);
 
           expire_mode ();
         }
+
+        // Now that we have all the pieces, run the test.
+        //
+        runner_->run (ts);
       }
 
       command_exit parser::
diff --git a/build2/test/script/runner b/build2/test/script/runner
new file mode 100644
index 0000000..74913c8
--- /dev/null
+++ b/build2/test/script/runner
@@ -0,0 +1,36 @@
+// file      : build2/test/script/runner -*- C++ -*-
+// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef BUILD2_TEST_SCRIPT_RUNNER
+#define BUILD2_TEST_SCRIPT_RUNNER
+
+#include <build2/types>
+#include <build2/utility>
+
+#include <build2/test/script/script>
+
+namespace build2
+{
+  namespace test
+  {
+    namespace script
+    {
+      class runner
+      {
+      public:
+        virtual void
+        run (const test&) = 0;
+      };
+
+      class concurrent_runner: public runner
+      {
+      public:
+        virtual void
+        run (const test&) override;
+      };
+    }
+  }
+}
+
+#endif // BUILD2_TEST_SCRIPT_RUNNER
diff --git a/build2/test/script/runner.cxx b/build2/test/script/runner.cxx
new file mode 100644
index 0000000..3789281
--- /dev/null
+++ b/build2/test/script/runner.cxx
@@ -0,0 +1,22 @@
+// file      : build2/test/script/runner.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#include <build2/test/script/runner>
+
+using namespace std;
+
+namespace build2
+{
+  namespace test
+  {
+    namespace script
+    {
+      void concurrent_runner::
+      run (const test&)
+      {
+        assert (false); // @@ TODO
+      }
+    }
+  }
+}
-- 
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