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Add helper macros for result try/catch.

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This commit is contained in:
Michael Scire 2019-06-01 20:39:11 -07:00
parent 8e650c8ff7
commit ee05e2d91a
1 changed files with 33 additions and 0 deletions
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33
include/stratosphere/results/utilities.h
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@ -20,6 +20,39 @@ extern "C" {
} \
} while (0)
/// Helpers for pattern-matching on a result expression, if the result would fail.
#define R_TRY_CATCH(res_expr) \
do { \
const Result _tmp_r_try_catch_rc = res_expr; \
if (R_FAILED(_tmp_r_try_catch_rc)) { \
if (false)
#define R_CATCH(catch_result) \
} else if (_tmp_r_try_catch_rc == catch_result) { \
_Static_assert(R_FAILED(catch_result), "Catch result must be constexpr error Result!"); \
if (false) { } \
else
#define R_CATCH_RANGE(catch_result_start, catch_result_end) \
} else if (catch_result_start <= _tmp_r_try_catch_rc && _tmp_r_try_catch_rc <= catch_result_end) { \
_Static_assert(R_FAILED(catch_result_start), "Catch start result must be constexpr error Result!"); \
_Static_assert(R_FAILED(catch_result_end), "Catch end result must be constexpr error Result!"); \
_Static_assert(R_MODULE(catch_result_start) == R_MODULE(catch_result_end), "Catch range modules must be equal!"); \
if (false) { } \
else
#define R_CATCH_MODULE(module) \
} else if (R_MODULE(_tmp_r_try_catch_rc) == module) { \
_Static_assert(module != 0, "Catch module must be error!"); \
if (false) { } \
else
#define R_END_TRY_CATCH \
} else if (R_FAILED(_tmp_r_try_catch_rc)) { \
return _tmp_r_try_catch_rc; \
} \
} while (0)
#ifdef __cplusplus
}
#endif