Setup command line infrastructure for new command

1 files changed, 70 insertions, 0 deletions

diff --git a/bdep/new-types.hxx b/bdep/new-types.hxx
new file mode 100644
index 0000000..2612f62
--- /dev/null
+++ b/bdep/new-types.hxx
@@ -0,0 +1,70 @@
+// file      : bdep/new-types.hxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef BDEP_NEW_TYPES_HXX
+#define BDEP_NEW_TYPES_HXX
+
+namespace bdep
+{
+  // We could have defined cmd_new_*_options in a separate .cli file, include
+  // that here, and so on. Or we can abuse templates and keep everything
+  // together.
+
+  // --type
+  //
+  class cmd_new_exe_options;
+  class cmd_new_lib_options;
+  class cmd_new_bare_options;
+
+  template <typename EXE  = cmd_new_exe_options,
+            typename LIB  = cmd_new_lib_options,
+            typename BARE = cmd_new_bare_options>
+  struct cmd_new_type_template
+  {
+    enum type_type {exe, lib, bare} type;
+
+    operator type_type () const {return type;}
+
+    union
+    {
+      EXE   exe_opt;
+      LIB   lib_opt;
+      BARE bare_opt;
+    };
+
+    // Default is bare with no options.
+    //
+    cmd_new_type_template (): type (bare) {bare_opt = BARE ();}
+  };
+
+  using cmd_new_type = cmd_new_type_template<>;
+
+  // --lang
+  //
+  class cmd_new_c_options;
+  class cmd_new_cxx_options;
+
+  template <typename C   = cmd_new_c_options,
+            typename CXX = cmd_new_cxx_options>
+  struct cmd_new_lang_template
+  {
+    enum lang_type {c, cxx} lang;
+
+    operator lang_type () const {return lang;}
+
+    union
+    {
+      C     c_opt;
+      CXX cxx_opt;
+    };
+
+    // Default is C++ with no options.
+    //
+    cmd_new_lang_template (): lang (cxx) {cxx_opt = CXX ();}
+  };
+
+  using cmd_new_lang = cmd_new_lang_template<>;
+}
+
+#endif // BDEP_NEW_TYPES_HXX