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tvl-depot/tvix/eval
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Vincent Ambo 671915837a fix(tvix/eval): add operation to assert boolean type 
This operation is required because both sides of the logical operators
are strictly evaluated by Nix, even if the resulting value is not used
further.

For example, in our implementation of `&&`, if the left-hand side is
`true`, then the result of the expression is simply the right-hand
side value. This value must be asserted to be a boolean for the
semantics of the language to work correctly.

Change-Id: I34f5364f2a444753fa1d8b0a1a2b2d9cdf7c6700
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6157
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: grfn <grfn@gws.fyi>
2022-08-26 09:02:38 +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 fix(tvix/eval): add operation to assert boolean type 2022-08-26 09:02:38 +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 feat(tvix/eval): Add initial benchmarking infrastructure 2022-08-25 16:03:55 +00:00
Cargo.toml feat(tvix/eval): Add initial benchmarking infrastructure 2022-08-25 16:03:55 +00:00
default.nix chore(tvix/eval): enable test runs in naersk 2022-08-24 23:18:07 +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.