diff options
Diffstat (limited to 'gnu/packages/cpp.scm')
| -rw-r--r-- | gnu/packages/cpp.scm | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/gnu/packages/cpp.scm b/gnu/packages/cpp.scm index f0d8cd2a40..2591d339d6 100644 --- a/gnu/packages/cpp.scm +++ b/gnu/packages/cpp.scm @@ -731,3 +731,41 @@ of C++14 components that complements @code{std} and Boost.") ;; 32-bit is not supported: https://github.com/facebook/folly/issues/103 (supported-systems '("aarch64-linux" "x86_64-linux")) (license license:asl2.0))) + +(define-public libexpected + (package + (name "libexpected") + (version "1.0.0") + (source + (origin + (method git-fetch) + (uri (git-reference + (url "https://github.com/TartanLlama/expected") + (commit (string-append "v" version)) + ;; NOTE: Requires TL_CMAKE from custom + ;; repository. Should not affect reproducibility. + (recursive? #t))) + (file-name (git-file-name name version)) + ;; NOTE: This patch will be unnecessary on subsequent tags. + (patches (search-patches "libexpected-nofetch.patch")) + (sha256 + (base32 "1ckzfrljzzdw9wf8hvdfjz4wjx5na57iwxc48mbv9rf5067m21a5")))) + (build-system cmake-build-system) + ;; TODO: Clean up install phase. + (arguments + `(#:phases + (modify-phases %standard-phases + (replace 'check + (lambda _ + (invoke "./tests")))))) + (native-inputs + `(("catch2" ,catch-framework2))) + (synopsis "C++11/14/17 std::expected with functional-style extensions") + (description "@code{std::expected} is proposed as the preferred way to +represent objects which will either have an expected value, or an unexpected +value giving information about why something failed. Unfortunately, chaining +together many computations which may fail can be verbose, as error-checking +code will be mixed in with the actual programming logic. This implementation +provides a number of utilities to make coding with expected cleaner.") + (home-page "https://tl.tartanllama.xyz/") + (license license:cc0))) |