diff options
Diffstat (limited to 'src/compat/option.hpp')
| -rw-r--r-- | src/compat/option.hpp | 49 |
1 files changed, 40 insertions, 9 deletions
diff --git a/src/compat/option.hpp b/src/compat/option.hpp index 7beef6f..b6e7655 100644 --- a/src/compat/option.hpp +++ b/src/compat/option.hpp @@ -24,8 +24,6 @@ #include <utility> -#include "attr.hpp" - namespace tmwa { @@ -423,13 +421,46 @@ namespace option if (o.maybe_ref.is_none()) falsy; \ tmwa::option::option_unwrap(std::move(o)); \ }).maybe_ref_fun() -// immediately preceded by 'if'; not double-eval-safe -#define OPTION_IS_SOME_INLOOP(var, expr) \ - ((expr).is_some()) \ - WITH_VAR_INLOOP(auto&, var, *(expr).ptr_or(nullptr)) -#define OPTION_IS_SOME_NOLOOP(var, expr) \ - ((expr).is_some()) \ - WITH_VAR_NOLOOP(auto&, var, *(expr).ptr_or(nullptr)) + +#define OMATCH_BEGIN(expr) \ + { \ + auto&& _omatch_var = (expr); \ + switch (_omatch_var.is_some()) \ + { \ + { \ + { \ + /*}}}}*/ +#define OMATCH_END() \ + /*{{{{*/ \ + } \ + } \ + } \ + (void) _omatch_var; \ + } + +#define OMATCH_BEGIN_SOME(var, expr) \ + OMATCH_BEGIN (expr) \ + OMATCH_CASE_SOME (var) + +#define OMATCH_CASE_SOME(var) \ + /*{{{{*/ \ + } \ + break; \ + } \ + { \ + case true: \ + { \ + auto&& var = *_omatch_var.ptr_or(nullptr); \ + /*}}}}*/ +#define OMATCH_CASE_NONE() \ + /*{{{{*/ \ + } \ + break; \ + } \ + { \ + case false: \ + { \ + /*}}}}*/ } // namespace option //using option::Option; |