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2022-08-25 r/4477 refactor(tvix/vm): simplify implementation of OpEqualVincent Ambo1-8/+1
This can now fully delegate to PartialEq of Value Change-Id: Iaa9f4ec9b8830d516d72f83a93ab2df9a6e5697c Reviewed-on: https://cl.tvl.fyi/c/depot/+/6142 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-08-25 r/4476 feat(tvix): implement not-equals (!=) operatorVincent Ambo9-8/+21
Change-Id: Ic259d6d0cf30553e944682a0d1d2c610df7fe5c2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6141 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-08-25 r/4475 feat(tvix/eval): implement attrset update (`//`) operatorVincent Ambo13-1/+87
The underlying implementation does a few tricks based on which pair of attrset representations is encountered. Particularly the effect of short-circuiting the empty cases might be relevant in nixpkgs/NixOS, due to the use of lib.optionalAttrs. Change-Id: I22b978b1c69af12926489a71087c6a6219c012f3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6140 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-08-25 r/4474 fix(tvix/value): explicitly delegate `Ord` to &str representationVincent Ambo1-1/+9
I assumed that `Ord` is a marker trait like `Eq`, but it actually has a member. Without this ordering was incoherent. Change-Id: Id37cbdf333daf748d29b85243046c7e061b1ce29 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6139 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-08-25 r/4473 fix(tvix/value): ensure only string values of NixString are hashedVincent Ambo1-1/+8
Change-Id: I1b97cf5a9e4e235fac72a507de49a8df508bcaa1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6138 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-08-25 r/4472 feat(tvix/eval): implement string concatenationVincent Ambo6-1/+23
Change-Id: If61066e59232b2bad42b5cb5f0f2d9b9c416be8b Reviewed-on: https://cl.tvl.fyi/c/depot/+/6137 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-08-25 r/4471 refactor(tvix/vm): use a macro to handle binary arithmetic operatorsVincent Ambo1-49/+32
Instead of constructing another runtime value representing the pair on which to perform arithmetic, implement the same logic in the shape of a macro. This is designed to be compatible with operators like `+` that work both as an arithmetic operator AND as an operator on another pair of types. Change-Id: I1c83649ead6117f811f1fb45482d0cadf811125e Reviewed-on: https://cl.tvl.fyi/c/depot/+/6136 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-08-25 r/4470 test(tvix/eval): add some eval-okay-* tests for trivial typesVincent Ambo13-16/+50
Change-Id: I85ccc07e08c67abf4fcd3752c58e1702943239ac Reviewed-on: https://cl.tvl.fyi/c/depot/+/6135 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-08-25 r/4469 fix(tvix/value): fix display representation of floatsVincent Ambo1-1/+7
Nix displays a maximum of 5 digits for floating points. Change-Id: Ifa3c0d96fa0b24e3be8f94dfebc99e602a258355 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6133 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-08-24 r/4468 chore(tvix/eval): enable test runs in naerskVincent Ambo1-0/+1
Change-Id: I08c3a66a3f5c98d914d17a2ad6de98b1c02e50b2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6134 Tested-by: BuildkiteCI Autosubmit: tazjin <tazjin@tvl.su> Reviewed-by: grfn <grfn@gws.fyi>
2022-08-24 r/4467 test(tvix/eval): add identity tests for literal evaluationVincent Ambo19-2/+56
Change-Id: Id3f37fbe341e15e9428ef1d579d61a514232c0e8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6132 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-24 r/4466 fix(tvix/value): align Display representation with NixVincent Ambo1-6/+2
Displaying the optimised representation is not useful anymore. Change-Id: Icb962ff8865ec4207c144fbcb1aae87483b0fb7c Reviewed-on: https://cl.tvl.fyi/c/depot/+/6131 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-24 r/4465 docs(tvix/eval): add README note on running the Nix test suiteVincent Ambo1-0/+12
Change-Id: I792154d5fea05414f2b14367ea4087dc2a88758e Reviewed-on: https://cl.tvl.fyi/c/depot/+/6130 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-24 r/4464 chore(tvix/tests): gate Nix test suite behind `nix_tests` featureVincent Ambo2-0/+6
Once we have full coverage they should be enabled by default. Change-Id: Iace9e1ae9a9f901a0979ad336434004b8028fe8a Reviewed-on: https://cl.tvl.fyi/c/depot/+/6129 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-24 r/4463 chore(tvix/eval): only print AST if requestedVincent Ambo1-1/+3
Change-Id: If32c7fd03458a27aecb8c473f2c48b12f8cb5175 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6128 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi> Autosubmit: tazjin <tazjin@tvl.su>
2022-08-24 r/4462 fix(tvix/value): add ident_str representation of stringsVincent Ambo2-8/+25
When printing strings as identifiers (in attribute sets), the string should only be quoted and escaped if it contains escape characters. Change-Id: If2bcfa1e93dc8f00be4d7a57ec1d82fc679103c3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6127 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi> Autosubmit: tazjin <tazjin@tvl.su>
2022-08-24 r/4461 feat(tvix/tests): check in Nix' language test suiteVincent Ambo248-9/+2217
This adds scaffolding code for running the Nix language test suite. The majority of eval-okay-* tests should eventually be runnable as-is by Tvix, however the eval-fail-* tests might not as we intend to have more useful error messages than upstream Nix. Change-Id: I4f3227f0889c55e4274b804a3072850fb78dd1bd Reviewed-on: https://cl.tvl.fyi/c/depot/+/6126 Tested-by: BuildkiteCI Autosubmit: tazjin <tazjin@tvl.su> Reviewed-by: grfn <grfn@gws.fyi>
2022-08-24 r/4460 chore(tvix/eval): add 'test-generator' as dev-dependencyVincent Ambo2-0/+57
This crate makes it easy to generate test cases from files on disk, which is used for running the Nix test suite against Tvix. Change-Id: I60ef26484d05e723982679dd42958adf52735916 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6125 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-24 r/4459 fix(tvix/value): add escaping logic for Nix stringsVincent Ambo1-10/+46
Nix strings displayed to users must be escaped the same way as they are in C++ Nix. This adds the scaffolding for escapes, but is most likely not yet complete. Change-Id: Icfdcb2ac98d292c567ba894a92b6529a53e0cc17 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6124 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-24 r/4458 fix(tvix/value): implement PartialOrd/PartialEq for stringsVincent Ambo1-1/+13
Instead of comparing the enum variants (which does not yield useful behaviour), compare &str representations of the string instead. Change-Id: I5e94b5f6c91b4561e1bc7c36d586f3d23c243764 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6112 Tested-by: BuildkiteCI Reviewed-by: eta <tvl@eta.st>
2022-08-24 r/4457 feat(tvix/value): introduce string representation with &'static strVincent Ambo4-26/+44
For cases where the strings are statically known (such as the oft-occuring name/value), this can be a useful optimisation. It's also much more convenient in tests. Change-Id: Ie462b684805bd4986ea5e85ca4bff663bc2d3c3c Reviewed-on: https://cl.tvl.fyi/c/depot/+/6111 Tested-by: BuildkiteCI Reviewed-by: eta <tvl@eta.st>
2022-08-24 r/4456 test(tvix/value): add simple attrset construction testsVincent Ambo3-0/+62
These do not yet test nested attribute sets; we need to add some more inspection primitives first. Change-Id: Icfc99bf17c73ebefc0d882a84f0ca73ec688a54d Reviewed-on: https://cl.tvl.fyi/c/depot/+/6110 Reviewed-by: eta <tvl@eta.st> Tested-by: BuildkiteCI
2022-08-24 r/4455 feat(tvix/value): implement nested attribute set literalsVincent Ambo1-14/+44
With this change, nested attribute sets can now be created from literals. This required some logic for dealing with cases where at a deeper nesting point a literal attribute set was constructed from an optimised representation. For example, this is valid Nix code: ```nix { a = {}; # creates optimised empty representation a.b = 1; # wants to add a `b = 1` to it b = { name = "foo"; value = "bar"; }; # creates optimised K/V repr b.foo = 42; # wants to add an additional `foo = 42` } ``` In these cases, the attribute set must be coerced to a map representation first which is achieved by the new internal NixAttr::map_mut helper. Change-Id: Ia61d3d9d14c4e0f5e207c00f6a2f4daa3265afb2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6109 Reviewed-by: eta <tvl@eta.st> Tested-by: BuildkiteCI
2022-08-24 r/4454 refactor(tvix/value): encapsulate attrset logic within value::attrsVincent Ambo3-191/+194
The internal optimisations of the set representation were previously leaking into the VM, which is highly undesirable. Keeping it encapsulated allows us to do additional optimisations within value::attrs without being concerned about its use in the VM. Change-Id: I7e7020bb0983b9d355d3db747b049b2faa60131f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6108 Reviewed-by: eta <tvl@eta.st> Tested-by: BuildkiteCI
2022-08-22 r/4453 chore(paroxysm): bump cargo dependenciesVincent Ambo1-89/+183
Change-Id: Ibf82bf6b9a10274fe6928db7a6a2beb74da92b13 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6122 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-08-22 r/4452 chore(web/atward): bump cargo dependenciesVincent Ambo1-64/+210
Change-Id: I691e87c6b596fcc7028717a5a22d5619bd87a089 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6121 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-08-22 r/4451 chore(tools/cheddar): bump cargo dependenciesVincent Ambo1-125/+248
Change-Id: I41e26046a67635ec3dba2ac955e31e6ca7451cc6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6120 Reviewed-by: sterni <sternenseemann@systemli.org> Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-08-22 r/4450 chore(tazjin/tgsa): bump cargo dependenciesVincent Ambo1-98/+195
Change-Id: Id52ab2937e32385324ba93f4df7e1da17a1f4eec Reviewed-on: https://cl.tvl.fyi/c/depot/+/6119 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-08-22 r/4449 chore(3p/sources): Bump channels & overlayssterni5-66/+76
* //users/tazjin/predlozhnik: bump wasm-bindgen & run `cargo update` * //users/Profpatsch/writers: use proper keyword syntax to make make flake8 happy. * //third_party/nixpkgs: pick binaryen from stable channel Change-Id: Ia711d8c396aa09b78413d80f35eedf63fa315596 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6118 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: Profpatsch <mail@profpatsch.de>
2022-08-22 r/4448 feat(users/Profpatsch): init haskell arglib-netencodeProfpatsch3-0/+64
Mirrors the rust exec-helpers Change-Id: I96f211d6545e228b8ae0c1dce4e60e6f6867690c Reviewed-on: https://cl.tvl.fyi/c/depot/+/6117 Tested-by: BuildkiteCI Reviewed-by: Profpatsch <mail@profpatsch.de>
2022-08-22 r/4447 feat(users/Profpatsch): init haskell exec-helpersProfpatsch3-0/+80
Mirrors the rust exec-helpers Change-Id: I8fba49525949a8f38ca8c215e2ec7ba9d97d3bf9 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6116 Tested-by: BuildkiteCI Reviewed-by: Profpatsch <mail@profpatsch.de>
2022-08-22 r/4446 fix(users/Profpatsch/my-prelude): use exactSourceProfpatsch1-1/+4
Change-Id: I1b797fb69f69e09f2dda99fce2f12adef0ac2ad2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6115 Tested-by: BuildkiteCI Reviewed-by: Profpatsch <mail@profpatsch.de>
2022-08-22 r/4445 feat(users/Profpatsch): init netencode-hsProfpatsch3-0/+445
Haskell implementation of the netncode parser & generators. Change-Id: I904df752e78641110af2857e71d8206bf432d427 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6114 Tested-by: BuildkiteCI Reviewed-by: Profpatsch <mail@profpatsch.de>
2022-08-16 r/4444 chore(sterni/emacs): weed out subscriptionssterni1-26/+2
Change-Id: Ie5f57300c380874a83d1cbd25a61eb595760bbf4 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6113 Reviewed-by: sterni <sternenseemann@systemli.org> Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-08-14 r/4443 refactor(tvix/rm): introduce helper for AttrSet Entry APIVincent Ambo1-20/+27
There are multiple points where an insertion needs to be done into an attribute set, but copying the key or checking for presence before insertion should be avoided As that is a little bit noisy, it's been factored out into a helper function in this commit. Change-Id: Ibcb054ebeb25a1236c06c812f47c8e74180d4fc9 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6107 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-14 r/4442 feat(tvix/vm): implement first nested attribute set constructionVincent Ambo2-39/+134
This can construct non-overlapping nested attribute sets (i.e. `{ a.b = 1; b.c = 2; }`, but not `{ a.b = 1; a.c = 2; }`). In order to do the latter, it's necessary to gain the ability to manipulate the in-progress attribute set construction. There's multiple different options for this ... Change-Id: If1a762a720b175e8eb4216cbf96a7434d22640fb Reviewed-on: https://cl.tvl.fyi/c/depot/+/6106 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-13 r/4441 refactor(tvix/value): explicitly implement PartialEq for valueVincent Ambo1-1/+26
There are some notions of equality (due to e.g. different backing variants for types, or Nix particularities) that don't work correctly when deriving PartialEq. Change-Id: Ide83ae67d051cc0b3ca89cefb283f17d0207acce Reviewed-on: https://cl.tvl.fyi/c/depot/+/6105 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-13 r/4440 fix(tvix/eval): Fail on duplicate attribute set keysVincent Ambo2-1/+9
Change-Id: I57373ca76d0e25a5d08a8dfce9d5949099326fc0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6104 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-13 r/4439 feat(tvix/eval): construct internal attribute path representationVincent Ambo4-1/+30
This is required for constructing nested attribute sets at runtime. There'll be quite a lot of optimisation potential with this solution eventually, if it should turn out to be a bottleneck. This introduces a conceptual change, in that the `Value` enum is now an enum representing "all runtime values" instead of "all Nix language types". This makes sense in general, as this type will also contain Chunk representations etc. which are not exposed to users. Change-Id: Ic5f72b2a0965b146c6a451efad34c6a81ca1aad8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6103 Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-08-13 r/4438 feat(tvix/vm): implement construction of optimised KV attrsetsVincent Ambo1-0/+77
For name/value pairs (which occur extremely often in Nix and make up a significant chunk of the runtime cost of evaluating nixpkgs) we substitute an optimised representation. For now this will only be used if the name/value pair keys were specified as literal identifiers or strings (i.e. if chunks are encountered as keys they are not forced and a normal attribute set backed by a map will be constructed). Change-Id: Ic79746c323e627528bd58b1a6024ee8d0aff7858 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6102 Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-08-13 r/4437 fix(tvix/value): KV struct needs to carry name as Value, tooVincent Ambo1-1/+2
Users may construct a pair that falls into the name/value optimisation but where `name` is not actually a string, as from the language perspective there is nothing special about this attribute set. We also can not conditionally apply this by forcing the key at this point, as this would change the language semantics. Therefore, the name in the optimised representation is also carried as `Value`. Change-Id: I5be8a4c98ba19ebdfb7203a929f714a04492512e Reviewed-on: https://cl.tvl.fyi/c/depot/+/6101 Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-08-13 r/4436 feat(tvix/value): implement Display properly for listsVincent Ambo1-2/+8
Change-Id: I991d235cf52fbd42eb839b384f9c55ee64fa86c4 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6100 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-13 r/4435 fix(tvix/errors): display a useful intermediate error representationVincent Ambo1-1/+1
Change-Id: If979a2aa21444320427f54e6530a55cab873856b Reviewed-on: https://cl.tvl.fyi/c/depot/+/6099 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-13 r/4434 feat(tvix): implement string interpolationVincent Ambo3-1/+25
This adds a new instruction which assembles an interpolated string from a specified number of fragments, which are already going to be located on the stack in the right position. This will raise a type error if any of the fragments do not evaluate to a string. Change-Id: I5756248fa3e9fcc3d063c14db40b332f7e20a588 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6098 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-13 r/4433 feat(tvix/compiler): compile non-interpolated string literalsVincent Ambo1-0/+35
This sets up the scaffolding for compiling interpolation, but those instructions do not yet exist. Change-Id: Ife41bbbf432d9661abe566c92437409dd0da44e7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6097 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-13 r/4432 style(tvix/eval): display `Display` representation of runtime valuesVincent Ambo1-1/+1
Change-Id: Ifbe05c2da9493c9e132a2d2e94a451d6091542a5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6096 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-13 r/4431 feat(tvix/compiler): compile list literalsVincent Ambo1-0/+23
Change-Id: I2c6fedc3dbb7d449d700f3972c3fbd4a7d147f6c Reviewed-on: https://cl.tvl.fyi/c/depot/+/6095 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi> Autosubmit: tazjin <tazjin@tvl.su>
2022-08-13 r/4430 feat(tvix/vm): implement list constructionVincent Ambo2-1/+20
Change-Id: Iec2b4910800ab29daae6d71b58a8acd14ccb1cc1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6094 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi> Autosubmit: tazjin <tazjin@tvl.su>
2022-08-13 r/4429 feat(tvix/value): add runtime representation of simple listsVincent Ambo2-0/+19
There might be more logic in the future to encapsulate different backing implementations of lists as well. Change-Id: Ib7064fab48bf88b0c8913b0ecfa2108177c7c9fd Reviewed-on: https://cl.tvl.fyi/c/depot/+/6093 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi> Autosubmit: tazjin <tazjin@tvl.su>
2022-08-13 r/4428 docs(tvix/eval): add design documentation for attrset opcodesVincent Ambo1-0/+122
Change-Id: I303b57e035543f4597c6247983d1d533e4014638 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6092 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
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