serge-sans-paille
e243ec2784
Both debug and non-debug configuration have been tested, through
for debug in DEBUG NDEBUG; do
clang-tidy mfbt/*.h '-config={"Checks": ["-*", "misc-include-cleaner"], "CheckOptions": [{"key": "misc-include-cleaner.IgnoreHeaders", "value": ".*-inl.h;.*.inc;new"}, {"key": "misc-include-cleaner.MissingIncludes", "value": false}]}' --extra-arg-before=-xc++ --extra-arg=-std=c++20 --extra-arg=-I$PWD/obj-x86_64-pc-linux-gnu/dist/include --extra-arg=-DXP_UNIX --extra-arg=-I./nsprpub/pr/include/ --extra-arg=-I./config/external/nspr/ --extra-arg=-D$debug
done
Some IWYU pragma: keep(reason) comments have been added when necessary.
Differential Revision: https://phabricator.services.mozilla.com/D287540
37 lines
1.4 KiB
C
37 lines
1.4 KiB
C
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_Try_h
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#define mozilla_Try_h
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#include "mozilla/Likely.h"
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#include "mozilla/Result.h" // IWYU pragma: keep(used by macro MOZ_TRY)
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/**
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* MOZ_TRY(expr) is the C++ equivalent of Rust's `target = try!(expr);`, using
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* gcc's statement expressions [0]. First, it evaluates expr, which must produce
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* a Result value. On success, the result's success value is 'returned' as
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* rvalue. On error, immediately returns the error result. This pattern allows
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* to directly assign the success value:
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*
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* ```
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* SuccessValue val = MOZ_TRY(Func());
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* ```
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*
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* Where `Func()` returns a `Result<SuccessValue, E>` and is called in a
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* function that returns `Result<T, E>`.
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*
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* [0]: https://gcc.gnu.org/onlinedocs/gcc/Statement-Exprs.html
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*/
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#define MOZ_TRY(expr) \
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__extension__({ \
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auto mozTryVarTempResult = ::mozilla::ToResult(expr); \
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if (MOZ_UNLIKELY(mozTryVarTempResult.isErr())) { \
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return mozTryVarTempResult.propagateErr(); \
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} \
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mozTryVarTempResult.unwrap(); \
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})
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#endif // mozilla_Try_h
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