From 96908ec43ed27d9f34da27b6a94a6db357465056 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Thu, 14 May 2020 14:18:50 +0300
Subject: Add build script

---
 libbuild2/build/script/runner.hxx | 78 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 libbuild2/build/script/runner.hxx

(limited to 'libbuild2/build/script/runner.hxx')

diff --git a/libbuild2/build/script/runner.hxx b/libbuild2/build/script/runner.hxx
new file mode 100644
index 0000000..db211df
--- /dev/null
+++ b/libbuild2/build/script/runner.hxx
@@ -0,0 +1,78 @@
+// file      : libbuild2/build/script/runner.hxx -*- C++ -*-
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef LIBBUILD2_BUILD_SCRIPT_RUNNER_HXX
+#define LIBBUILD2_BUILD_SCRIPT_RUNNER_HXX
+
+#include <libbuild2/types.hxx>
+#include <libbuild2/utility.hxx>
+
+#include <libbuild2/build/script/script.hxx>
+
+namespace build2
+{
+  namespace build
+  {
+    struct common;
+
+    namespace script
+    {
+      class runner
+      {
+      public:
+        // Location is the script start location (for diagnostics, etc).
+        //
+        virtual void
+        enter (environment&, const location&) = 0;
+
+        // Index is the 1-base index of this command line in the command list.
+        // If it is 0 then it means there is only one command. This
+        // information can be used, for example, to derive file names.
+        //
+        // Location is the start position of this command line in the script.
+        // It can be used in diagnostics.
+        //
+        virtual void
+        run (environment&,
+             const command_expr&,
+             size_t index,
+             const location&) = 0;
+
+        virtual bool
+        run_if (environment&,
+                const command_expr&,
+                size_t,
+                const location&) = 0;
+
+        // Location is the script end location (for diagnostics, etc).
+        //
+        virtual void
+        leave (environment&, const location&) = 0;
+      };
+
+      class default_runner: public runner
+      {
+      public:
+        virtual void
+        enter (environment&, const location&) override;
+
+        virtual void
+        run (environment&,
+             const command_expr&,
+             size_t,
+             const location&) override;
+
+        virtual bool
+        run_if (environment&,
+                const command_expr&,
+                size_t,
+                const location&) override;
+
+        virtual void
+        leave (environment&, const location&) override;
+      };
+    }
+  }
+}
+
+#endif // LIBBUILD2_BUILD_SCRIPT_RUNNER_HXX
-- 
cgit v1.1