History

Vincent Ambo f7305eed47 refactor(tvix/eval): collect vector of errors in compiler Instead of exiting the compiler at the first sight of an error, skip any erroneous nodes and continue compiling, collecting more errors along the way. This paves the way for nicer error reporting in which multiple errors can be reported at once, avoiding situations in which users are hunting a fault error-by-error and possibly getting distracted by less useful output. Change-Id: I80c9a87272e33a31297167ae2eb2706a46adf15a Reviewed-on: https://cl.tvl.fyi/c/depot/+/6236 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>		2022-09-01 21:40:50 +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	refactor(tvix/eval): collect vector of errors in compiler	2022-09-01 21:40:50 +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/eval): bump rnix-parser to latest master	2022-09-01 17:41:22 +00:00
Cargo.toml	chore(tvix/eval): bump rnix-parser to latest master	2022-09-01 17:41:22 +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.