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2022-12-02 r/5369 test(tvix/eval): verify pointer equality checkssterni2-0/+47
Change-Id: I9baf2810fbd5b6ee8bfe10fce5b64801a35c1d67 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7369 Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: Adam Joseph <adam@westernsemico.com> Tested-by: BuildkiteCI
2022-12-02 r/5368 test(tvix/eval): verify pointer equality in list comparisonssterni2-0/+7
Change-Id: I617d402c8ecc7aaf607c4bdcd58a06ebddb71fac Reviewed-on: https://cl.tvl.fyi/c/depot/+/7370 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Reviewed-by: Adam Joseph <adam@westernsemico.com>
2022-11-26 r/5339 fix(tvix/eval): OpAdd must weakly stringify if either arg is stringAdam Joseph2-0/+8
Tests included. Change-Id: I7a4905d6103813373e383e2e8629c5fd243d6bca Reviewed-on: https://cl.tvl.fyi/c/depot/+/7377 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: Adam Joseph <adam@westernsemico.com>
2022-11-25 r/5310 test(tvix/eval): add eval-okay-closure-pointer-compareAdam Joseph2-0/+15
This test case checks two things: * A sanity check that "pointer equality for functions" means not just the lambda, but also the upvalues. * To be pointer-equal, it is not enough for the upvalues to be normal-form equal (i.e. `nix_eq()`-equal); the upvalues must be *pointer*-equal. The second part of the test case checks for this. Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I4e59327a6f199b8212e97197b212e3c3934bb3f0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7372 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-11-24 r/5308 test(tvix/eval): test limits of builtins.seq's forcingsterni2-2/+2
Change-Id: I6dfc9108220762ef3372cd2739e91d79c01a55e1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7366 Tested-by: BuildkiteCI Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su>
2022-11-21 r/5296 test(tvix/eval): enable eval-okay-closure test from nix_testsVincent Ambo2-1/+2
This function covers builtins.genericClosure, seemingly including weird behaviour around the order in which the work set is processed. For some reason, in C++ Nix the test expectation is written in XML which we do not yet support, so I have created a new expectation file using `nix-instantiate --eval --strict` on the file (yes, using C++ Nix). Change-Id: Id90e7117d120dc66d963a51083c4d8e8f2d9f181 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7311 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-11-10 r/5276 feat(tvix/eval): detect division by zerojhahn2-0/+2
This detects if the second argument of a division is a zero (either as integer or as float). If so, an error message is displayed. This fixes b/219. Change-Id: I50203d14a71482bc757832a2c8dee08eb7d35c49 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7258 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de>
2022-11-06 r/5255 feat(tvix/eval): placeholder builtin implementationsVincent Ambo2-0/+0
Adds initial placeholders for builtins.{derivation, unsafeDiscardStringContext}. Change-Id: I67a126c9b9f9f4f11e2256e69b9a32ebd9eb1b0e Reviewed-on: https://cl.tvl.fyi/c/depot/+/7187 Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-11-04 r/5244 feat(tvix/eval): implement builtins.splitAdam Joseph2-0/+0
This implements builtins.split, and passes eval-okay-regex-split.nix (which is moved out of notyetpassing). Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: Ieb0975da2058966c697ee0e2f5b3f26ccabfae57 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7143 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-11-04 r/5242 test(tvix/eval): add a test case for groupBy with thunksAdam Joseph2-0/+7
We have to be careful implementing `builtins.groupBy`, since the list may contain thunks, and tvix's to_xxx() functions do not work on thunks. Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I182b6fc2d4296f864ed16744ef70b153e8e6978a Reviewed-on: https://cl.tvl.fyi/c/depot/+/7039 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-11-04 r/5241 fix(tvix/eval): quote keys which are not valid identifiersAdam Joseph2-0/+2
The impl Display for NixAttrs needs to wrap double quotes around any keys which are not valid Nix identifiers. This commit does that, and adds a test (which fails prior to this commit and passes after this commit). Change-Id: Ie31ce91e8637cb27073f23f115db81feefdc6424 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7084 Autosubmit: Adam Joseph <adam@westernsemico.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-31 r/5226 fix(tvix/eval): nix_eq() must recurseAdam Joseph4-0/+2
The current implementation of nix_eq will force one level of thunks and then switch to the (non-forcing) rust Eq::eq() method. This gives incorrect results for lists-of-thunks. This commit changes nix_eq() to be recursive. A regression test (which fails prior to this commit) is included. This fix also causes nix_tests/eval-okay-fromjson.nix to pass, so it is moved out of notyetpassing. Change-Id: I655fd7a5294208a7b39df8e2c3c12a8b9768292f Signed-off-by: Adam Joseph <adam@westernsemico.com> Reviewed-on: https://cl.tvl.fyi/c/depot/+/7142 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-29 r/5223 test(tvix/eval): builtins.sort must preserve order of equal elementssterni2-0/+8
Change-Id: I59a0756940d1e5360a2ab4e886cf0bc9af7b8901 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7133 Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-29 r/5222 feat(tvix/eval): Implement builtins.sortGriffin Smith2-0/+0
This is a bit tricky because the comparator can throw errors, so we need to propagate them out if they exist and try to avoid sorting forever by returning a reasonable ordering in this case (as short-circuiting is not available). Co-Authored-By: Vincent Ambo <tazjin@tvl.su> Change-Id: Icae1d30f43ec1ae64b2ba51e73ee467605686792 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7072 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-10-29 r/5221 feat(tvix/eval): Implement comparison for listsGriffin Smith2-0/+18
Lists are compared lexicographically in C++ nix as of [0], and our updated nix test suites depend on this. This implements comparison of list values in `Value::nix_cmp` using a very similar algorithm to what C++ does - similarly to there, this requires passing in the VM so we can force thunks in the list elements as we go. [0]: https://github.com/NixOS/nix/commit/09471d2680292af48b2788108de56a8da755d661# Change-Id: I5d8bb07f90647a1fec83f775243e21af856afbb1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7070 Autosubmit: grfn <grfn@gws.fyi> Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-10-28 r/5219 feat(tvix/eval): add builtins.replaceStringsJames Landrein4-0/+6
Change-Id: I93dcdaeb101364ee2273bcaeb19acb57cf6b9e7d Reviewed-on: https://cl.tvl.fyi/c/depot/+/7034 Autosubmit: j4m3s <james.landrein@gmail.com> Reviewed-by: Adam Joseph <adam@westernsemico.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-26 r/5199 feat(tvix/eval): include filename of failing test when failingAdam Joseph1-5/+5
Unfortunately we have to mangle test case filenames into rust-valid symbols, since test-generator doesn't use `r#"..."` (deliberately?). This means that when a test fails, there's nothing on the console you can copy-and-paste in order to view/edit the code of the failing test case. This commit (partially) fixes it by including the unmangled name in the panic!() string. However failures due to panic!()s inside the vm (including deliberate panics due to panic!()-debugging) still won't display an unmangled filename. Maybe we should reconsider the use of test-generator? Change-Id: I2208a859ffab1264f17f48fd303ff5e19675967e Signed-off-by: Adam Joseph <adam@westernsemico.com> Reviewed-on: https://cl.tvl.fyi/c/depot/+/7092 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-25 r/5198 feat(tvix/eval): add builtins.{floor,ceil}James Landrein4-0/+4
Change-Id: I4e6c4f96f6f5097a5c637eb3dbbd7bb8b34b7d52 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7032 Autosubmit: j4m3s <james.landrein@gmail.com> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: grfn <grfn@gws.fyi>
2022-10-24 r/5192 feat(tvix/eval): Implement builtins.mapAttrsGriffin Smith2-0/+0
I played around a little bit with doing this in-place, but ended up going with this perhaps slightly clone-heavy approach for now because ideally most clones on Value are cheap - but later we should benchmark alternate approaches that get to reuse allocations better if necessary or possible. Change-Id: If998eb2056cedefdf2fb480b0568ac8329ccfc44 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7068 Autosubmit: grfn <grfn@gws.fyi> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-24 r/5190 feat(tvix/eval): implement builtins.currentSystemAdam Joseph2-0/+0
This commit implements builtins.currentSystem, by capturing the cargo environment variable `TARGET` and exposing it to rustc as `TVIX_CURRENT_SYSTEM` so it can be inserted into the source code using `env!()`. The resulting value needs to be massaged a bit, since it is an "LLVM triple". The current code should work for all the platforms for which cppnix works (thanks qyliss for generating the list!). It does *not* reject all of the triples that cppnix's configure.ac rejects -- it is much more forgiving. We can tighten this up in a future commit. Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I947f504b2af5a7fee8cf0cb301421d2fc9174ce1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6986 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-23 r/5185 test(tvix/eval): add a test case for nested sibling accessVincent Ambo2-0/+8
Change-Id: I3898284bc4871e5483ead0c27e0f2832d66f2b29 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7061 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-10-22 r/5176 test(tvix/eval): add a test for observing an infinite attribute setVincent Ambo2-0/+5
Note that this test (ironically) fails if the observer is used (e.g. with --trace-runtime), but that's a separate issue. Change-Id: I952eaeac8b5a7acce9c66cd4744ec570280748e7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7055 Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-10-22 r/5175 feat(tvix/eval): Implement builtins.deepSeqGriffin Smith5-0/+3
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>
2022-10-22 r/5174 fix(tvix/eval): use top-level span for `force_with_output`Vincent Ambo2-0/+2
When forcing thunks in `force_with_output`, the call stack of the VM is actually empty (as the calls are synthetic and no longer part of the evaluation of the top-level expression). This means that Tvix crashed when constructing error spans for the `fallible` macro, as the assumption of there being an enclosing span was violated. To work around this, we instead pass the span for the whole top-level expression to force_for_output and set this as the span for the enclosing error chain. Existing output logic will already avoid printing the entire expression as an error span. This fixes b/213. Change-Id: I93978e0deaf5bcb0f47a6fa95b3f5bebef5bad4c Reviewed-on: https://cl.tvl.fyi/c/depot/+/7052 Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-10-20 r/5168 fix(tvix/eval): restore .exp.xml files and skip in test suitesterni3-0/+7
Change-Id: Iebda5e0d99925a0a8c1d6ae1d7a35397d127bf31 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7047 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-20 r/5167 fix(tvix/eval): fix path in notyetpassing testssterni4-4/+4
cl/7036 moved these paths around, but neglected to update the relative paths they contain. Without these updated, they will never start passing! Change-Id: Ib16468611af59729883e501be8486f43d850fd58 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7046 Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-20 r/5166 test(tvix/eval): eval-okay-eq.nix can actually be testedsterni3-1/+1
eval-okay-eq.nix is actually an ancient test case that used the ATerm syntax for the test result. It was disabled for a while, since the behavior got reverted for a bit, but works on any reasonably modern Nix implementation. This change matches my [C++ Nix PR]. [C++ Nix PR]: https://github.com/NixOS/nix/pull/7196 Change-Id: I602fd7c83a0bc104ab502c8b6a74e4591272be1a Reviewed-on: https://cl.tvl.fyi/c/depot/+/7045 Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-20 r/5165 fix(tvix/eval): eval-okay-pathexists test can be executedsterni2-0/+0
Change-Id: Ibdcaa165024584370ce9578e67985a3526e44f77 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7044 Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-20 r/5164 test(tvix/eval): update C++ Nix test suite to current mastersterni22-31/+85
The language test suite actually doesn't require flakes and the new features are mostly sensible (added builtins) as well as some tests for regressions the C++ implementation experienced. The path interpolation test is not included in this update because there is no way to construct an location-independent .exp file for it (the C++ repo also doesn't have one). We may still want to implement that feature eventually (in case rnix adds support for it). The C++ Nix revision used is ac0fb38e8a5a25a84fa17704bd31b453211263eb. Change-Id: I75f1e780ddeeee6f6b1f28cf3c66c288dca2c20c Reviewed-on: https://cl.tvl.fyi/c/depot/+/7043 Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-19 r/5161 feat(tvix/eval): expect not-yet-passing tests to failAdam Joseph73-14/+48
It is helpful to be able to use the test suite as a regression test: make a change to the compiler/vm, re-run the tests, and if there are any failures you know it's your fault. Right now we can't do that, because the expected-to-fail tests are mixed in with the expected-to-pass tests. So we can't use them as a regression test. Change-Id: Ied606882b9835a7effd7e75bfcf3e5f827e0a2c8 Signed-off-by: Adam Joseph <adam@westernsemico.com> Reviewed-on: https://cl.tvl.fyi/c/depot/+/7036 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-18 r/5156 fix(tvix/eval): wrap dynamic resolution in an extra thunkVincent Ambo3-1/+7
Without this change it was possible to cause situations (see the new test) in which a `with`-namespace was forced prematurely. Change-Id: I879ea7763b43edc693feace2c73c890d426fafd3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7031 Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Reviewed-by: Adam Joseph <adam@westernsemico.com>
2022-10-17 r/5155 feat(nix/eval): Implement builtins.functionArgsGriffin Smith2-0/+81
Now that we're tracking formals on Lambda this ends up being quite easy; we just pull them off of the Lambda for the argument closure and use them to construct the result attribute set. Change-Id: I811cb61ec34c6bef123a4043000b18c0e4ea0125 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7003 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-17 r/5154 feat(tvix/eval): Validate closed formalsGriffin Smith1-0/+1
Validate "closed formals" (formal parameters without an ellipsis) via a new ValidateClosedFormals op, which checks the arguments (in an attr set at the top of the stack) against the formal parameters on the Lambda in the current frame, and returns a new UnexpectedArgument error (including the span of the formals themselves!!) if any arguments aren't allowed Change-Id: Idcc47a59167a83be1832a6229f137d84e426c56c Reviewed-on: https://cl.tvl.fyi/c/depot/+/7002 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-17 r/5152 feat(tvix/eval): Implement builtins.seqGriffin Smith3-0/+3
Since we already have infra for forcing arguments to builtins, this ends up being almost *too* simple - we just return the second argument! Change-Id: I070d3d0b551c4dcdac095f67b31e22e0de90cbd7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6999 Reviewed-by: kanepyork <rikingcoding@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-16 r/5148 feat(tvix/eval): implement builtins.partitionJames Landrein2-0/+14
Change-Id: I8b591f3057c68c1542046fc5a771973f2238c9df Reviewed-on: https://cl.tvl.fyi/c/depot/+/7020 Autosubmit: j4m3s <james.landrein@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-16 r/5141 fix(tvix/eval): don't coerce variable name to stringsterni1-0/+1
Change-Id: I8aa878dee009901feb453c489ce37c12fa3a31a8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7026 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: Adam Joseph <adam@westernsemico.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-15 r/5137 feat(tvix/eval): Implement builtins.intersectAttrsGriffin Smith2-0/+4
Change-Id: Iaba9bcfa19f283cd0c1931be2f211e2528a1a940 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6998 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: kanepyork <rikingcoding@gmail.com>
2022-10-15 r/5136 feat(tvix/eval): Initial impl of builtins.matchGriffin Smith2-0/+30
Implement an *initial* version of builtins.match, using the rust `regex` crate for regular expressions. The rust regex crate definitely has different semantics than nix's regular expressions - but we'd like to see how far we can get before the incompatibility starts to matter. This consciously leaves out any sort of memo for compiled regular expressions (which upstream nix also has) for the sake of expediency - in the future we should implement that so we don't have to compile the same regular expression multiple times. Change-Id: I5b718635831ec83397940e417a9047c4342b6fa1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6989 Tested-by: BuildkiteCI Reviewed-by: Adam Joseph <adam@westernsemico.com> Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-15 r/5135 feat(tvix/eval): Implement builtins.fromJSONGriffin Smith4-0/+28
Using `serde_json` for parsing JSON here, plus an `impl FromJSON for Value`. The latter is primarily to stay "dependency light" for now - likely going with an actual serde `Deserialize` impl in the future is going to be way better as it allows saving significantly on intermediary allocations. Change-Id: I152a0448ff7c87cf7ebaac927c38912b99de1c18 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6920 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-15 r/5133 fix(tvix/eval): bring foldl' strictness in line with C++ Nixsterni5-0/+9
Working on https://github.com/NixOS/nix/pull/7158, I discovered that C++ Nix actually is strict in the accumulator, just not in the first value. This seems due to the fact that in the C++ evaluator, function calls don't seem to be thunked unconditionally and foldl' just elects not to wrap it in a thunk (don't quote me on this summary, even though it seems to line up with the code for primop_foldlStrict and testable behavior). It doesn't seem worth it to risk breaking the odd Nix expression just to be strict in one more value per invocation of foldl' (i.e. the initial accumulator value `nul`), so let's match the existing C++ Nix behavior here. Change-Id: If59e62271a90d97cb440f0ca72a58ec7840d1690 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7022 Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-15 r/5132 feat(tvix/eval): implement builtins.dirOfAdam Joseph2-0/+11
This commit causes the test eval-okay-builtins.nix to pass. It also adds tests/tvix_tests/eval-okay-dirof.nix which has better coverage than the nix tests for this builtin. Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I71d96b48680696fd6e4fea3a9861742b35cfaa66 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6987 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-13 r/5125 feat(tvix/eval): implement builtins.baseNameOfAdam Joseph2-0/+11
This commit implements builtins.baseNameOf and adds a test case eval-okay-basenameof.nix to the test suite. Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: Ib8bbafba2ac9ca0e1d3dc5e844167f94890d9fee Reviewed-on: https://cl.tvl.fyi/c/depot/+/6997 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-10-13 r/5124 fix(tvix/eval): parseDrvName should not coerce, and xfail testAdam Joseph1-0/+1
builtins.parseDrvName should not coerce its argument to a string. This commit fixes that oversight in my previous commit, and adds an xfail test to cover this condition. Thanks to @sterni for noticing this. Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I76bc78f1a82e1e08fe5c787c563a221d55de2639 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6991 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-10-13 r/5123 feat(tvix/eval): enable the XFAIL testsAdam Joseph2-14/+45
This commit adds support for running the "expected failure" tests in both the nix and tvix test suites. I have disabled the eval-fail-blackhole.nix test because it gets stuck running forever. Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: Iba75ce6c8f2becab3c834fcfdd9f4fdc5a4bdb9f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6990 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: grfn <grfn@gws.fyi>
2022-10-13 r/5122 test(tvix/eval): update for cppnix PR #7149Adam Joseph1-0/+3
cppnix has merged #7149, so let's update our copy of their tests: https://github.com/NixOS/nix/pull/7149 Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I0be3bf9da937abd24102e1997daa2087ecfafd98 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6992 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-13 r/5117 feat(tvix/eval): allow to disable warningsAdam Joseph1-2/+3
The nix_tests test suite produces lots of warnings. We can't fix these, since they are kept in sync with upstream, so there's little point in cluttering up the console with them every time the tests are run. Let's add a clap flag "warnings" and TVIX_WARNINGS environment variable. The default is "true". The test runner overrides this default and mutes the warnings. Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I4b065f96fe15838afcca6970491a54e248ae4df7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6985 Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-10-12 r/5115 test(tvix/eval): add eval-okay-parsedrvname.{exp,nix}Adam Joseph2-0/+13
Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I59254a0ac513b3d2a6b2184554358bb6eba2ba99 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6949 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-11 r/5105 fix(tvix/eval/builtins): force acc not list element in foldl'sterni2-0/+9
When investigating discrepancies between foldl' in tvix and C++ Nix, I discovered that C++ Nix's foldl' doesn't seem to be strict at all. Since this seemed wrong, I looked into Haskell's foldl' implementation which doesn't force the list elements (`val` in our code), but the accumulation value (`res` in our code). You can look at the code here: https://hackage.haskell.org/package/base-4.17.0.0/docs/src/GHC.List.html#foldl%27 This actually makes a lot of sense: If `res` is not forced after each application of `op`, we'll end up thunks nested as deeply as the list is long, potentially taking up a lot of space. This can be limited by forcing the `res` thunk before applying `op` again (and creating a new thunk). I've also PR-ed an equivalent change for C++ Nix at https://github.com/NixOS/nix/pull/7158. Since this is not merged nor backported to our Nix 2.3 fork, I've not copied the eval fail test yet, since it wouldn't when checking our tests against C++ Nix in depot. Change-Id: I34edf6fc3031fc1485c3e714f2280b4fba8f004b Reviewed-on: https://cl.tvl.fyi/c/depot/+/6947 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-10-11 r/5102 feat(tvix/eval): Implement builtins.removeAttrsGriffin Smith3-0/+11
Change-Id: I28910991a0108436a42ac7bf3458f9180a44154e Reviewed-on: https://cl.tvl.fyi/c/depot/+/6928 Reviewed-by: Adam Joseph <adam@westernsemico.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-11 r/5100 fix(tvix/eval): Pop frames even if running op failsGriffin Smith2-1/+2
Previously, the VM assumed that if an error was returned from `run()`, the evaluation was "finished" and the state of the VM didn't matter. This used to be a reasonable assumption, but now that we've got `tryEval` around we need to actually make sure that we clean up after ourselves if we're about to return an error. Specifically, if the *last* instruction in an evaluation frame returns an error, we previously wouldn't pop that evaluation frame, which could cause all sorts of bizarre errors based on what happened to be in the stack at the time. This commit splits out a `run_op` method from `VM::run`, and uses that to check the evaluation frame return condition even if the op we're running is about to return an error, and pop the evaluation frame if we're at the last instruction. Change-Id: Ib40649d8915ee1571153cb71e3d76492542fc3d7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6940 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
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