tweag/nickel 1.10.0

on GitHub

Nickel 1.10 includes various bug fixes and quality of life improvements. Nickel now comes with more prebuilt binary packages (adding Windows and arm-based MacOS), is now built with LTO (Link-Time Optimization), and comes with official python bindings to be published on PyPI together with this release.

Under the hood, a lot of work has been devoted to internal refactorings in order to prepare the implementation of a bytecode compiler and virtual machine (RFC007). Those changes shouldn't have any noticeable effects currently for users.

Breaking changes

• Record freezing (#2113, #2131). To fix an unsound and unexpected behavior appearing when first altering a record with dictionary operations (std.record.remove, std.record.insert or std.record.update - see #1877) and then overriding it, the aforementioned stdlib operations now freeze the returned record, which removes the possibility of performing further recursive overriding.

  Typically, the record returned by one of those operations is a static dictionary instead of a record with recursive dependencies. While you can still override specific fields through merging, the information about internal dependencies is lost and their reverse dependencies won't be updated automatically.

Documentation

• Mention any_of as alternative to enum by @yannham in #2119
• Link to the CLI chapter in the manual intro by @yannham in #2144

Stdlib

• Add the package std module by @jneem in #2104
• Fix empty capture groups in regexes by @jneem in #2109
• Add filter_map, dedup and some variants to the stdlib by @yannham in #2120

LSP

• Fix crash in NLS by @jneem in #2093
• Fix NLS crash when typechecking parse errors by @jneem in #2154

Tooling

• Add support for packages to nickel-lang-core by @jneem in #2094
• Add support warnings by @jneem in #2086
• Fixed Debug impl of EvalOrDeserError printing entire source of files by @rben01 in #2118
• Do deep eval for doctests by @jneem in #2110
• pass thru feature nix-experimental by @KiaraGrouwstra in #2132
• Add github action for packaging and publishing python packages to PyPI (#1592) by @vlcek in #2126
• Include a release artifact for nls by @jneem in #2139
• Update rustyline to 15.0 by @neuschaefer in #2142
• Add LTO to static builds by @jneem in #2147
• Add import_paths parameter to Python bindings by @yannham in #2157

New Contributors

• @rben01 made their first contribution in #2098
• @KiaraGrouwstra made their first contribution in #2132
• @vlcek made their first contribution in #2126
• @neuschaefer made their first contribution in #2142

Full Changelog: 1.9.1...1.10.0