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Add R_TRY_CLEANUP utility.

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This commit is contained in:
Michael Scire 2019-06-17 14:44:07 -07:00
parent afcd075354
commit b5f1ec02b3
1 changed files with 19 additions and 4 deletions
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23
include/stratosphere/results/utilities.h
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@ -13,16 +13,17 @@ extern "C" {
/// Evaluates an expression that returns a result, and returns the result if it would fail. /// Evaluates an expression that returns a result, and returns the result if it would fail.
#define R_TRY(res_expr) \ #define R_TRY(res_expr) \
do { \ { \
const Result _tmp_r_try_rc = res_expr; \ const Result _tmp_r_try_rc = res_expr; \
if (R_FAILED(_tmp_r_try_rc)) { \ if (R_FAILED(_tmp_r_try_rc)) { \
return _tmp_r_try_rc; \ return _tmp_r_try_rc; \
} \ } \
} while (0) } \
do {} while (0)
/// Helpers for pattern-matching on a result expression, if the result would fail. /// Helpers for pattern-matching on a result expression, if the result would fail.
#define R_TRY_CATCH(res_expr) \ #define R_TRY_CATCH(res_expr) \
do { \ { \
const Result _tmp_r_try_catch_rc = res_expr; \ const Result _tmp_r_try_catch_rc = res_expr; \
if (R_FAILED(_tmp_r_try_catch_rc)) { \ if (R_FAILED(_tmp_r_try_catch_rc)) { \
if (false) if (false)
@ -51,7 +52,21 @@ extern "C" {
} else if (R_FAILED(_tmp_r_try_catch_rc)) { \ } else if (R_FAILED(_tmp_r_try_catch_rc)) { \
return _tmp_r_try_catch_rc; \ return _tmp_r_try_catch_rc; \
} \ } \
} while (0) } \
do {} while (0)
/// Evaluates an expression that returns a result, and returns the result (after evaluating a cleanup expression) if it would fail.
#define R_TRY_CLEANUP(res_expr, cleanup_expr) \
{ \
const Result _tmp_r_try_cleanup_rc = res_expr; \
if (R_FAILED(_tmp_r_try_cleanup_rc)) { \
do { \
cleanup_expr \
} while (0); \
return _tmp_r_try_cleanup_rc; \
} \
} \
do {} while (0)
#ifdef __cplusplus #ifdef __cplusplus
} }