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| author | Griffin Smith <grfn@gws.fyi> | 2022-10-13T02·47-0400 |
|---|---|---|
| committer | grfn <grfn@gws.fyi> | 2022-10-22T18·11+0000 |
| commit | d4fa3152e92ef72d9ee050000b1fd4952203e383 (patch) | |
| tree | 288cd7bd6f47169aec08e402edd0cf5fb90560fa /tvix/eval/src/tests | |
| parent | 8724d2fff871827dc66503f9b3dfa1d29149ddc7 (diff) | |
feat(tvix/eval): Implement builtins.deepSeq r/5175
This is done via a new `deepForce` function on Value. Since values can be cyclical (for example, see the test-case), we need to do some extra work to avoid RefCell borrow errors if we ever hit a graph cycle: While deep-forcing values, we keep a set of thunks that we have already seen and avoid doing any work on the same thunk twice. The set is encapsulated in a separate type to stop potentially invalid pointers from leaking out. Finally, since deep_force is conceptually similar to `VM::force_for_output` (but more suited to usage in eval since it doesn't clone the values) this removes the latter, replacing it with the former. Co-Authored-By: Vincent Ambo <tazjin@tvl.su> Change-Id: Iefddefcf09fae3b6a4d161a5873febcff54b9157 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7000 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi> Reviewed-by: tazjin <tazjin@tvl.su>
Diffstat (limited to 'tvix/eval/src/tests')
| -rw-r--r-- | tvix/eval/src/tests/nix_tests/eval-okay-deepseq.exp (renamed from tvix/eval/src/tests/nix_tests/notyetpassing/eval-okay-deepseq.exp) | 0 | ||||
| -rw-r--r-- | tvix/eval/src/tests/nix_tests/eval-okay-deepseq.nix (renamed from tvix/eval/src/tests/nix_tests/notyetpassing/eval-okay-deepseq.nix) | 0 | ||||
| -rw-r--r-- | tvix/eval/src/tests/tvix_tests/eval-fail-deepseq.nix | 1 | ||||
| -rw-r--r-- | tvix/eval/src/tests/tvix_tests/eval-okay-deepseq.exp | 1 | ||||
| -rw-r--r-- | tvix/eval/src/tests/tvix_tests/eval-okay-deepseq.nix | 1 |
5 files changed, 3 insertions, 0 deletions
diff --git a/tvix/eval/src/tests/nix_tests/notyetpassing/eval-okay-deepseq.exp b/tvix/eval/src/tests/nix_tests/eval-okay-deepseq.exp index 8d38505c16..8d38505c16 100644 --- a/tvix/eval/src/tests/nix_tests/notyetpassing/eval-okay-deepseq.exp +++ b/tvix/eval/src/tests/nix_tests/eval-okay-deepseq.exp diff --git a/tvix/eval/src/tests/nix_tests/notyetpassing/eval-okay-deepseq.nix b/tvix/eval/src/tests/nix_tests/eval-okay-deepseq.nix index 53aa4b1dc2..53aa4b1dc2 100644 --- a/tvix/eval/src/tests/nix_tests/notyetpassing/eval-okay-deepseq.nix +++ b/tvix/eval/src/tests/nix_tests/eval-okay-deepseq.nix diff --git a/tvix/eval/src/tests/tvix_tests/eval-fail-deepseq.nix b/tvix/eval/src/tests/tvix_tests/eval-fail-deepseq.nix new file mode 100644 index 0000000000..9baa49b063 --- /dev/null +++ b/tvix/eval/src/tests/tvix_tests/eval-fail-deepseq.nix @@ -0,0 +1 @@ +builtins.deepSeq { x = abort "foo"; } 456 diff --git a/tvix/eval/src/tests/tvix_tests/eval-okay-deepseq.exp b/tvix/eval/src/tests/tvix_tests/eval-okay-deepseq.exp new file mode 100644 index 0000000000..8d38505c16 --- /dev/null +++ b/tvix/eval/src/tests/tvix_tests/eval-okay-deepseq.exp @@ -0,0 +1 @@ +456 diff --git a/tvix/eval/src/tests/tvix_tests/eval-okay-deepseq.nix b/tvix/eval/src/tests/tvix_tests/eval-okay-deepseq.nix new file mode 100644 index 0000000000..53aa4b1dc2 --- /dev/null +++ b/tvix/eval/src/tests/tvix_tests/eval-okay-deepseq.nix @@ -0,0 +1 @@ +builtins.deepSeq (let as = { x = 123; y = as; }; in as) 456 |