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2022-09-17 r/4894 test(tvix/eval): Add proptests covering trait impls for StringGriffin Smith3-0/+153
Add a suite of proptests covering the laws of the handwritten stdlib trait impls (Eq, Ord, and Hash) for String, generated from a new set of macros for generating those tests which can be applied to other types. Change-Id: Ib3276c9e96fca497aece094e5612707d3dc77ccd Reviewed-on: https://cl.tvl.fyi/c/depot/+/6626 Autosubmit: grfn <grfn@gws.fyi> Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-17 r/4893 test(tvix/eval): Test StringRepr::Smol as wellGriffin Smith1-1/+8
The From<String> impl for NixString only generates StringRepr::Heap strings, but we want to make sure we're testing StringRepr::Smol too Change-Id: I6d04b9cf12ef8462fe2788e0c6414b165f40311d Reviewed-on: https://cl.tvl.fyi/c/depot/+/6629 Autosubmit: grfn <grfn@gws.fyi> Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-17 r/4892 test(tvix/eval): impl Arbitrary for NixStringGriffin Smith1-0/+17
Change-Id: I3fe2d410c789429493a1278d571ca8fe74c2a69d Reviewed-on: https://cl.tvl.fyi/c/depot/+/6625 Autosubmit: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-17 r/4891 chore(tvix/eval): Add deps on proptest+test_strategyGriffin Smith2-2/+151
It's proptest time! Add deps on the proptest and test_strategy crates, gated behind a new (default-enabled) "arbitrary" feature flag so that they don't affect dependencies of things like tvixbolt that depend on tvix. These are going in dependencies, not dev-dependencies, so that we can impl Arbitrary for stuff outside of test modules (which will be important for integration suites which want to run proptests) Change-Id: I1613bd3ea9a835e22986ad4e59700e8736007963 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6624 Autosubmit: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-17 r/4890 refactor(tvix/eval): rename OpAttrsIsSet -> OpHasAttrVincent Ambo3-3/+3
This matches the name of the AST node from which it was compiled. Suggested by sterni in cl/6231 Change-Id: Ia51525158d2f47467c01fce2282005b1a8417a47 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6623 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: grfn <grfn@gws.fyi>
2022-09-17 r/4889 refactor(tvix/eval): clean up implementation of `compile_literal`Vincent Ambo1-10/+7
Suggested by sterni in cl/6231 Change-Id: I58bbc8a922d360ea79a4dacb76cf8aa1fad93757 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6622 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-17 r/4888 test(tvix/eval): add a test for lazy evaluation of with namespaceVincent Ambo2-0/+7
Suggested by grfn in cl/6222 Change-Id: I8413af6404786bd43e5cb462a307cc236c4fb9ae Reviewed-on: https://cl.tvl.fyi/c/depot/+/6621 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-17 r/4887 chore(tvix/eval): add simple .envrc / shell.nixsterni2-0/+19
Change-Id: I10a44b92391a8ac4d7ec5e4b878953c215f59908 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6620 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-17 r/4886 test(tvix/eval): Add the start of a nix oracle test suiteGriffin Smith4-30/+165
Add the start of a test suite that compares tvix eval results against nix, using the string repr of the value as the comparison. This shells out to a nix-instantiate binary, which is configurable as an environment variable, to eval - there's some extra machinery there to setup a new nix store as a tempdir to allow running this test inside the nix build for tvix-eval itself. Currently this has a macro that'll allow writing lots and lots of hardcoded tests, but going forward I'm also going to be looking into adding proptest-based generation of expressions to compare. Change-Id: I9f4895fab1e668ed2b7dfd6f92f8c80de1bbb16b Reviewed-on: https://cl.tvl.fyi/c/depot/+/6307 Autosubmit: grfn <grfn@gws.fyi> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-17 r/4885 feat(tvix_eval): Support builtins.compareVersionsThoFrank4-0/+144
Added an Iterator over &str wich yields the VersionParts. Change-Id: I8043d423127446a173d01d290aab10de0c24a6fc Reviewed-on: https://cl.tvl.fyi/c/depot/+/6619 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-17 r/4884 refactor(tvix/eval): use new ToSpan trait wherever possibleVincent Ambo1-24/+16
... it would be nice if we could thread it through to the `Scope` stuff (declaring phantoms & locals). Change-Id: Id3b84e79032b8fbb12138b719e657565355fbc79 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6616 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-17 r/4883 feat(tvix/eval): introduce `ToSpan` trait in compiler moduleVincent Ambo2-18/+96
This trait can be used to convert most structures from rnix-parser into a codemap::Span. It uses a macro to implement the trait for the various expression types in the rnix AST, as Rust's silly semantic versioning restriction stops us from doing a blanket implementation. This will be used in the next commit to clean up the span handling in the compiler a bit. Change-Id: I0a437034e5fa203b5a49c6f25c45932a9f3b2bca Reviewed-on: https://cl.tvl.fyi/c/depot/+/6615 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-17 r/4882 feat(tvix/eval): Support builtins.elemAtWilliam Carroll4-2/+22
(Attempt to) index into a list. Change-Id: I3592e60a79e64d265e34100d4062041b0b410e00 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6551 Reviewed-by: wpcarro <wpcarro@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: wpcarro <wpcarro@gmail.com> Tested-by: BuildkiteCI
2022-09-16 r/4881 refactor(tvix/eval): fix current clippy lintssterni2-9/+6
Change-Id: I88482453a62955515a0dcc0b243351b2bbac5236 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6618 Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-09-16 r/4879 test(tvix/eval): add tests for legacy let syntaxVincent Ambo4-0/+15
Change-Id: I42d6240056c93cf90986ef3fec88b42f804b06ef Reviewed-on: https://cl.tvl.fyi/c/depot/+/6613 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-16 r/4878 test(tvix/eval): add some tests for recursive attribute setsVincent Ambo4-0/+19
Change-Id: I6a4fbe6d5aa6d2ce223bf77330d6c0f512d4300d Reviewed-on: https://cl.tvl.fyi/c/depot/+/6612 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-16 r/4877 feat(tvix/eval): implement legacy let syntaxVincent Ambo2-4/+18
... and emit a warning if anyone decides to use. Change-Id: Iaa6fe9fa932340e6d0fa9f357155e78823702576 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6611 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-16 r/4876 feat(tvix/eval): implement recursive attribute setsVincent Ambo2-34/+77
Yep. This is kind of ugly right now. The idea is that the recursive_scope compilation function is used for recursive sets as well by emitting the keys. The rest of the logic is pretty much identical. There is quite a lot of code here that can be cleaned up (duplication between attrs and let, duplication inside of the recursive scope compilation function etc.), but I'd like to get it working first and then make it nice. Note that nested keys are *not* supported yet. Change-Id: I45c7cdd5f0e1d35fd94797093904740af3a97134 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6610 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-16 r/4875 refactor(tvix/eval): introduce a type for tracking bindingsVincent Ambo1-24/+64
This type is used in the list temporarily populated by the *second* pass over all identifiers in a recursive scope. This first pass only serves to make all bindings known to the compiler, without populating their values yet. Having a type here is going to be useful once we implement `rec`, which needs to thread through slightly more information. Change-Id: Ie33e0f096c5fcb6c864c991255466748b6f0d1eb Reviewed-on: https://cl.tvl.fyi/c/depot/+/6609 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-16 r/4874 refactor(tvix/eval): extract recursive scope logic into a helperVincent Ambo1-7/+14
This needs to be reused between let & `rec` attrs. Change-Id: I4a3bb90af4be32771b0f9e405c19370e105c0fef Reviewed-on: https://cl.tvl.fyi/c/depot/+/6608 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-16 r/4873 refactor(tvix/eval): move compile_inherit_attrs to compiler::attrsVincent Ambo2-62/+62
Plain move, no other changes. Change-Id: Ic4f89709f5c2cbc03182a848af080c820e39a0fd Reviewed-on: https://cl.tvl.fyi/c/depot/+/6607 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-16 r/4872 refactor(tvix/eval): explicitly construct attrs in phasesVincent Ambo2-32/+101
This makes the phases of attribute set construction that Nix has very explicit (inherits, static keys, dynamic keys). This change focuses on the split between dynamic/static keys by collecting all dynamic ones while compiling the static ones, and then phasing them in afterwards. It's possible we also need to do some additional splitting inside of the inherits. Change-Id: Icae782e2a5c106e3ce0831dda47ed81c923c0a42 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6530 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-16 r/4870 docs(tvix): Update components.mdFlorian Klink2-31/+63
This extends various ideas around the store and its slightly different internal model. Thanks to store composition, lazy substitution and more efficient transfer, we can also simplify some complicated logic while building. Change-Id: Ib3380af650fe06e114f54e8dc2df231f18af876b Reviewed-on: https://cl.tvl.fyi/c/depot/+/6585 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-15 r/4869 feat(tvix/eval): Support builtins.bitXorWilliam Carroll3-0/+20
Bitwise "exclusive-or" on integers. Change-Id: I90a0a15afb3a58662d70e82ea14e48b877476e04 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6550 Autosubmit: wpcarro <wpcarro@gmail.com> Reviewed-by: wpcarro <wpcarro@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-15 r/4868 feat(tvix/eval): Support builtins.bitOrWilliam Carroll3-0/+18
Bitwise `or` on integers. Change-Id: I45b0897331d1a9b6840f9d0feedcf10acc67fcec Reviewed-on: https://cl.tvl.fyi/c/depot/+/6549 Autosubmit: wpcarro <wpcarro@gmail.com> Reviewed-by: wpcarro <wpcarro@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-15 r/4867 feat(tvix/eval): Support builtins.bitAndWilliam Carroll4-0/+19
Bitwise `and` on integers. Change-Id: I9f2a9182a057af26906683acd97a40dfabbdded8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6548 Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: wpcarro <wpcarro@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-15 r/4866 feat(tvix/eval): Support builtins.attrValuesWilliam Carroll3-0/+17
:) Change-Id: Idf170b506ed6fab035b1e6f61055fee02e5c9be8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6547 Reviewed-by: wpcarro <wpcarro@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: wpcarro <wpcarro@gmail.com> Tested-by: BuildkiteCI
2022-09-15 r/4865 feat(tvix/eval): implement Value::coerce_to_path()sterni4-1/+48
This function is necessary for all builtins that expect some form of path as an argument. It is merely a wrapper around coerce_to_string that can shortcut if we already have a path. The absolute path check is done in the same way as in C++ Nix for compatibility, although it should probably be revised in the long term (think about Windows, for example). Since coercing to a path is not an operation possible in the language directly, this function can live in the builtins module as the only place it is required. Change-Id: I69ed5455c00d193fea88b8fa83e28907a761cab5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6574 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-15 r/4864 feat(tvix/eval): Support builtins.attrNamesWilliam Carroll4-2/+36
Define `.len()` method on `NixAttrs` to preallocate the capacity of the result vector. Also anchor an errant comment to its context (I think). Change-Id: I268f15025d453d7b3ae1146558c80e51433dd2a8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6546 Reviewed-by: wpcarro <wpcarro@gmail.com> Reviewed-by: sterni <sternenseemann@systemli.org> Autosubmit: wpcarro <wpcarro@gmail.com> Tested-by: BuildkiteCI
2022-09-15 r/4863 chore(tvix): add grfn & sterni to OWNERSVincent Ambo1-0/+2
Change-Id: Ieb7647a571332f49f896b5c4a86784d8ea31a5d8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6605 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-15 r/4862 feat(tvix/eval): Support builtins.headWilliam Carroll5-0/+27
TL;DR: - support `builtins.head` - define `ErrorKind::IndexOutOfBounds` and canonical error code - support basic unit tests Change-Id: I859107ffb4e220cba1be8c2ac41d1913dcca37ff Reviewed-on: https://cl.tvl.fyi/c/depot/+/6544 Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: wpcarro <wpcarro@gmail.com> Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-15 r/4861 refactor(tvix/eval): don't move parts Vec in compile_str_partssterni1-7/+5
This allows us to get rid of the count local variable which was a bit confusing. Calling parts.len() multiple times is fine, since the length doesn't need to be computed. Change-Id: I4f626729ad1bf23a93cb701385c3f4b50c57456d Reviewed-on: https://cl.tvl.fyi/c/depot/+/6584 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-15 r/4860 fix(tvix/eval): coerce string interpolation parts to stringsterni3-36/+59
With this puzzle piece of string compilation in place, `compile_str` becomes less redundant, as every part now needs to be compiled the same. The thunking logic becomes a bit trickier, since we need to thunk even in the case of `count == 1` if the single part is interpolating. Splitting the inner (shared) code in a separate function turned out to be easier for making rustc content. Change-Id: I6a554ca599926ae5907d7acffce349c9616f568f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6582 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-15 r/4859 fix(tvix/eval): thunk string interpolationsterni3-18/+40
If we have multiple string parts, we need to thunk assembling the string. If we have a single literal, it is strict (like all literals), but a single interpolation part may compile to a thunk, depending on how the expression inside is compiled – we can avoid forcing to early here compared to the previous behavior. Note that this CL retains the bug that `"${x}"` is erroneously translated to `x`, implying e.g. `"${12}" == 12`. The use of `parts.len()` is unproblematic, since normalized_parts() builds a `Vec` instead of returning an iterator. Change-Id: I3aecbfefef65cc627b1b8a65be27cbaeada3582b Reviewed-on: https://cl.tvl.fyi/c/depot/+/6580 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-15 r/4857 feat(tvix/eval): implement correct toString behaviorsterni6-14/+196
Implement C++ Nix's `EvalState::coerceToString` minus some of the Path / store handling. This is currently only used for `toString` which does all possible coercions, but we've already prepared the weaker coercion variant which is e.g. used for builtins that expect string arguments. `EvalState::coerceToPath` is still missing for builtins that need a path, but it'll be easy to build on top of this. Change-Id: I78d15576b18921791d04b6b1e964b951fdef22c6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6571 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-13 r/4849 fix(tvix/eval): force left argument of `?` before checking for attrssterni3-0/+29
OpAttrsIsSet and OpAttrsTrySelect will fail silently if the attribute set value on the stack is actually a thunk, so we need to make sure to force at every step of the way. Emitting the force instructions in the compiler because it is easier to add, but maybe the VM should do this when handling the relevant opcodes? Comments welcome. Change-Id: I65c5ef348d59b2d07c9bb06abb24f9f3e6a0fdb2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6540 Reviewed-by: grfn <grfn@gws.fyi> Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-13 r/4848 fix(tvix/eval): force value in builtins.typeOfsterni3-2/+27
This prevents Nix programs to observe the "internal" type of thunks. Possibly .type_of() is also an area of the runtime where we should panic if "internal" would ever be returned. Change-Id: I9f358044c48ad64896fb6a1b1a42f00a29efac00 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6539 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: wpcarro <wpcarro@gmail.com> Reviewed-by: grfn <grfn@gws.fyi> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-13 r/4847 fix(tvix/eval): force exprs inside string interpolationsterni1-1/+5
The expression inside ${…} may return arbitrary values, including thunks, so we need to make sure to force them just in case. Change-Id: Ic11ba00c4c92a10a83becd91233db5f57f6e59c8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6541 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-13 r/4846 refactor(tvix/eval): cover all Value variants in force_for_outputVincent Ambo1-1/+8
Avoids accidentally dropping one on the floor if we add more, pointed out by sterni in cl/6372 Change-Id: Ib7bb0ce9c8331c8337003d20c4d5240dfae1c32a Reviewed-on: https://cl.tvl.fyi/c/depot/+/6570 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-13 r/4845 fix(tvix/eval): add branch for directly comparing two thunksVincent Ambo1-0/+1
Pointed out by sterni in cl/6370 Change-Id: I324d8049a2702ced8f30ad43a64d63ae79dd0eab Reviewed-on: https://cl.tvl.fyi/c/depot/+/6569 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-13 r/4844 fix(tvix/eval): use fragment span for OpAttrsSelectVincent Ambo1-2/+2
Pointed out by sterni in cl/6389 Change-Id: I648056a760266a8cfd7adcdc478c7ff2132991f7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6568 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-13 r/4843 refactor(tvix/eval): point `OpPushWith` span at namespaceVincent Ambo1-1/+1
Pointed out by sterni in cl/6395 Change-Id: I2dda2bb11fef702df05fd7a4fd93b9e717a85dad Reviewed-on: https://cl.tvl.fyi/c/depot/+/6567 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-13 r/4842 refactor(tvix/eval): point `OpAssert` span at conditionVincent Ambo1-1/+1
This is more useful than pointing it at the entire assert expression, as that includes the body as well which is not going to be relevant in the error. Pointed out by sterni in cl/6391 Change-Id: I95a5d1edf90df65e7fa53d4d04502afd6e99e89a Reviewed-on: https://cl.tvl.fyi/c/depot/+/6566 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-13 r/4841 chore(tvix/eval): do not inherit scope depth in new scopesVincent Ambo1-1/+0
This is no longer required, resolution is now more sane. Pointed out by sterni in cl/6422. Change-Id: Icc8983c648f864e66813948df6e2d4bad6a7f312 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6565 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-13 r/4840 refactor(tvix/eval): encapsulate scope_depth in compiler::scopeVincent Ambo3-15/+20
This field no longer needs to be directly accessible by the compiler. Addresses a sterni lint from cl/6466 Change-Id: I5e6791943d7f0ab3d9b7a30bb1654c4a6a435b1f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6564 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-13 r/4839 fix(tvix/eval): address current clippy lintsVincent Ambo2-6/+6
Change-Id: I5288849d0e93511b0b5664fa92f1c6882e4a1356 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6563 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-13 r/4838 refactor(tvix/eval): use CodeIdx wrapper for instruction pointerVincent Ambo3-9/+34
As suggested by sterni in cl/6453. Change-Id: I3cf80d97c11fd7d085ab510f6be4b5f937c791ec Reviewed-on: https://cl.tvl.fyi/c/depot/+/6562 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-13 r/4836 feat(tvix/eval): implement initial fancy formatting for errorsVincent Ambo3-27/+145
This very closely follows the way it's done for warnings, but errors have a lot more information available in some cases which we do not surface yet. Note also that due to requiring the `CodeMap`, this is not yet called from eval.rs as the way that is threaded through needs to be refactored, so only the method for reporting these errors as strings is implemented so far. Next steps for this will be to add a generic diagnostics module that reduces some of the boilerplate for this between warnings & errors, and which will also give us a good point in the future to switch to a fancier diagnostics crate. Change-Id: If6bb209f8e7a568d866e516a90335b9b2afbf66d Reviewed-on: https://cl.tvl.fyi/c/depot/+/6534 Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-09-13 r/4830 feat(tvix/eval): implement initial fancy display for warningsVincent Ambo3-9/+94
This implements an initial fancy display for warnings emitted by the tvix compiler, using the codemap_diagnostic crate. Each warning variant has an associated message, and optionally an associated annotation for the span displayed to the user. In theory we could get a lot more fancy with the display for specific variants if needed (e.g. re-parse the AST and actually add multiple semantic spans based on context), but this is already a good start. Example: tvix-repl> let toString = https://tvl.fyi; in let inherit toString; in ({}: 42) rec {} warning[W004]: declared variable 'toString' shadows a built-in global! --> [tvix-repl]:1:5 | 1 | let toString = https://tvl.fyi; in let inherit toString; in ({}: 42) rec {} | ^^^^^^^^ variable declared here warning[W001]: URL literal syntax is deprecated, use a quoted string instead --> [tvix-repl]:1:16 | 1 | let toString = https://tvl.fyi; in let inherit toString; in ({}: 42) rec {} | ^^^^^^^^^^^^^^^ warning[W002]: inherited variable already exists with the same value --> [tvix-repl]:1:40 | 1 | let toString = https://tvl.fyi; in let inherit toString; in ({}: 42) rec {} | ^^^^^^^^^^^^^^^^^ warning[W999]: feature not yet implemented in tvix: recursive attribute sets --> [tvix-repl]:1:70 | 1 | let toString = https://tvl.fyi; in let inherit toString; in ({}: 42) rec {} | ^^^^^^ warning[W999]: feature not yet implemented in tvix: closed formals --> [tvix-repl]:1:62 | 1 | let toString = https://tvl.fyi; in let inherit toString; in ({}: 42) rec {} | ^^ warning[W003]: variable 'toString' is declared, but never used: --> [tvix-repl]:1:5 | 1 | let toString = https://tvl.fyi; in let inherit toString; in ({}: 42) rec {} | ^^^^^^^^ variable declared here => 42 :: int These are coloured when output to a terminal. Change-Id: If315648a07e333895db4ae1d0915ee2013806585 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6532 Autosubmit: tazjin <tazjin@tvl.su> Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-09-13 r/4827 chore(tvix/eval): add dependency on codemap-diagnosticVincent Ambo2-0/+22
This is a crate for source-span based error reporting. Since all of our spans are already codemap spans, it is a good starting point. We have to figure out quite a bit of logic for neat error printing; later on if we want fancier presentation we might want to look at one of the other libraries in this space like miette. Change-Id: I4e28886af1ed199b7112d9dbf063c9f29b612bf1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6531 Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: grfn <grfn@gws.fyi>
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