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Vincent Ambo 4c9d3fa2a6 chore(tvix/eval): explicitly set #[repr(transparent)] on wrappers 
For representation wrappers that are used to control the visibility of
type internals, this ensures that the wrapper does not increase the
size of the type.

In practice, the optimiser likely does this anyways but it is good to
guarantee it.

Change-Id: Ic6df7d668fe6006dfbd5b6cfcfc2088afa95b810
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6178
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2022-08-27 09:27:13 +00:00
..
benches feat(tvix/eval): Add initial benchmarking infrastructure 2022-08-25 16:03:55 +00:00
docs docs(tvix/eval): add design documentation for attrset opcodes 2022-08-13 15:31:50 +00:00
src chore(tvix/eval): explicitly set #[repr(transparent)] on wrappers 2022-08-27 09:27:13 +00:00
.gitignore feat(tvix/eval): check in generated project skeleton 2022-08-12 12:34:29 +00:00
.skip-subtree feat(tvix/tests): check in Nix' language test suite 2022-08-24 21:25:41 +00:00
Cargo.lock chore(tvix/cargo): add dirs dependency 2022-08-26 17:19:51 +00:00
Cargo.toml chore(tvix/cargo): add dirs dependency 2022-08-26 17:19:51 +00:00
default.nix test(tvix/eval): make sure all language tests also pass with C++ Nix 2022-08-26 20:46:03 +00:00
README.md docs(tvix/eval): add README note on running the Nix test suite 2022-08-24 23:11:12 +00:00

README.md

Tvix Evaluator

This project implements an interpreter for the Nix programming language.

The interpreter aims to be compatible with nixpkgs, on the foundation of Nix 2.3.

Work on this project is extremely in-progress, and the state of the project in the public repository may not necessarily reflect the state of the private codebase, as we are slowly working on publishing it.

We expect this to have caught up in a handful of weeks (as of 2022-08-12).

Please contact TVL with any questions you might have.

Nix test suite

C++ Nix implements a language test suite in the form of Nix source code files, and their expected output. The coverage of this test suite is not complete, but we intend to be compatible with it.

We have ported the test suite to Tvix, but do not run it by default as we are not yet compatible with it.

You can run the test suite by enabling the nix_tests feature in Cargo.

rnix-parser

Tvix is written in memory of jD91mZM2, the author of rnix-parser who sadly passed away.

Tvix makes heavy use of rnix-parser in its bytecode compiler. The parser is now maintained by Nix community members.