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Diffstat (limited to 'libbuild2/variable.hxx')
| -rw-r--r-- | libbuild2/variable.hxx | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/libbuild2/variable.hxx b/libbuild2/variable.hxx index 6047bf3..c03838f 100644 --- a/libbuild2/variable.hxx +++ b/libbuild2/variable.hxx @@ -1147,6 +1147,35 @@ namespace build2 static const map_value_type<K, V> value_type; }; + // Canned command line to be re-lexed (used in {Build,Test}scripts). + // + // Note that because the executable can be specific as a target or as + // process_path_ex, this is a list of names rather than a list of strings. + // Note also that unlike vector<name> this type allows name pairs. + // + struct cmdline: vector<name> + { + using vector<name>::vector; + + cmdline () {} // For Clang. + }; + + template <> + struct LIBBUILD2_SYMEXPORT value_traits<cmdline> + { + static_assert (sizeof (cmdline) <= value::size_, "insufficient space"); + + static cmdline convert (names&&); + static void assign (value&, cmdline&&); + static void append (value&, cmdline&&); + static void prepend (value&, cmdline&&); + static bool empty (const cmdline& x) {return x.empty ();} + + static const cmdline empty_instance; + static const char* const type_name; + static const build2::value_type value_type; + }; + // Explicitly pre-instantiate and export value_traits templates for // vector/map value types used in the build2 project. Note that this is not // merely an optimization since not doing so we may end up with multiple |