API parity with anyhow - bail / ensure, Result alias, downcast, chain#10
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- add `Result<T>` alias for `Expected<T>` in `anyhow.hpp` - add `ANYHOW_BAIL` and `ANYHOW_ENSURE` macros; short aliases under `ANYHOW_SHORT_MACROS` - add `ErrorInfo::payload` (`std::any`) and `fail_with()` for typed payloads - add `Failure::downcast<T>()` and `Failure::is<T>()` for payload inspection - add `Failure::chain()` and `Failure::root_cause()` for error inspection - add `test_failure.cpp` covering downcast, ring buffer, is, chain, root_cause - expand `test_expected.cpp` with `Result<T>` alias tests - expand `test_macros.cpp` with bail/ensure tests - drop redundant `-std=c++20` flag in tests CMake - update README and docs/vs-rust.md for new API surface - add CHANGELOG for 0.1.0 first release closes #1, closes #2
MihaiStreames
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anyhow - bail / ensure, Result alias, downcast, chain
MihaiStreames
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enhancement
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Summary
Result<T>alias forExpected<T>matching Rust's namingANYHOW_BAIL/ANYHOW_ENSUREmacros withBAIL/ENSUREshort aliasesfail_with(payload, msg, domain)+Failure::downcast<T>()/Failure::is<T>()for typed payloadsFailure::chain()andFailure::root_cause()for error inspectiontest_failure.cppcovering all newFailureAPI; expanded macro and expected testsCloses #1 and #2