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2022-10-10 r/5074 feat(tvix/eval): Implement builtins.concatMapGriffin Smith1-0/+13
Change-Id: I08bfd040a242aa43b64760c19f48a28303f206ac Reviewed-on: https://cl.tvl.fyi/c/depot/+/6900 Autosubmit: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-09 r/5073 feat(tvix/eval): Implement builtins.listToAttrsGriffin Smith1-0/+17
Implement the listToAttrs builtin, which constructs an attribute set from a list of attribute sets with keys name and value. This is tested using an adaptation of the nix `eval-ok-listtoattrs.nix`, with the utilities from `lib.nix` inlined. Change-Id: Ib5bf743466dda9722c2c1e00797df4b58448cf0f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6894 Autosubmit: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-08 r/5067 refactor(tvix/eval): Encapsulate Value::Attrs constructionGriffin Smith1-2/+1
Factor out the construction of Value::Attrs (including the Rc) into a new `attrs` constructor function, to abstract away the presence of the Rc itself. Change-Id: I42fd4c3841e1db368db999ddd651277ff995f025 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6892 Autosubmit: grfn <grfn@gws.fyi> Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-06 r/5041 feat(tvix/eval): initial implementation of `builtins.import`Vincent Ambo1-1/+1
This adds an initial working version of builtins.import which encapsulates the entire functionality of `import` within the builtin itself, without requiring any changes in the compiler or VM. The key insight that enables this is that we can simply return a Thunk from `import` that is constructed from the output of running the compiler and - ta-da! - no other component needs to know about it. A couple of notes: * builtins.import needs to capture variables like the SourceCode structure. This means it can not currently be constructed the same way as other builtins and has special handling, which leaks out to `eval.rs`. I have postponed dealing with that until we have this working a bit more. * the `globals` are not yet passed through * the error representation for the new variants is absolutely not done yet, we probably want to switch to something that supports cause-chaining now (like miette) * there is no mechanism for emitting warnings at runtime; we need to add that Change-Id: I3117a7ae3ff2432bf44f5ff05ad35f47faca31d5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6857 Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: wpcarro <wpcarro@gmail.com> Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-10-06 r/5040 refactor(tvix/eval): builtins now contain closuresVincent Ambo1-86/+100
For some upcoming builtins (notably, import) we need to capture arguments in the builtin's implementation. To allow this, we can no longer use function pointers for builtins, but must use a reference-counted closure object instead. Unfortunately this adds an extra pointer operation to every builtin call. We should benchmark this later against having a split builtin representation. Change-Id: I109d98d0e25998870542f47573eb1ec2e546f2a2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6856 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-10-05 r/5038 feat(tvix/eval): implement tvix's user-agent, err, nixVersionVincent Ambo1-0/+6
nixpkgs has hardcoded references to Nix versions, we need to provide it with something that looks like a Nix version while actually being a Tvix version. For now, we do this by stealing a trick out of the browser book and constructing a version that looks like a Nix version to Nix, but like a Tvix version to people who know what they are looking for. Nevermind that we don't actually have any kind of versioning for Tvix (yet?), other than depot revisions. Change-Id: I7ce8079dd8164a2079891d38e707f09a45f0bbc1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6858 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-10-04 r/5026 refactor(tvix/eval): allow impure Value builtinsVincent Ambo1-7/+5
Allows impure builtins that have a different shape than a Rust function pointer; specifically this is required for builtins.currentTime which does not work in WASM. Change-Id: I1362d8eeafe770ce4d1c5ebe4d119aeb0abb5c9b Reviewed-on: https://cl.tvl.fyi/c/depot/+/6849 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi> Reviewed-by: wpcarro <wpcarro@gmail.com>
2022-10-03 r/5024 feat(tvix/eval): implement `builtins.any`Vincent Ambo1-0/+14
Change-Id: I640ee20e7c0a68c4e024a577e429fed9b3a49ece Reviewed-on: https://cl.tvl.fyi/c/depot/+/6845 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-10-03 r/5023 feat(tvix/eval): implement `builtins.all`Vincent Ambo1-0/+14
Change-Id: I19ec2b2194681efd73041f4aa1e5f2c893e839c2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6844 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-10-03 r/5022 feat(tvix/eval): implement builtins.concatListsVincent Ambo1-0/+14
Concatenates (but not flattens) a list of lists. Change-Id: I692e0b3e7b5a5ff93d5768d3a27849b432ec5747 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6843 Autosubmit: tazjin <tazjin@tvl.su> Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-29 r/4991 chore(tvix/eval): fix all current clippy lintsVincent Ambo1-2/+2
Change-Id: I28d6af8cb408f8427a75d30b9120aaa809a1ea40 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6784 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-23 r/4964 chore(tvix/eval): mark coerce_value_to_path as intentionally unusedVincent Ambo1-0/+1
This was added in preparation for some builtins that don't exist yet and is producing some noise during compilation. Change-Id: I51fb0d14c3edf0bd6d9a288d50e44dacf35166c6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6769 Reviewed-by: flokli <flokli@flokli.de> Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-23 r/4963 feat(tvix/eval): implement 'builtins.filter'Vincent Ambo1-0/+29
This is a little ugly because the plain Iterator::filter method can not be used (it does not support fallible primitives), so we need to resort to an `Iterator::filter_map` and deal with the wrapping in Options everywhere. This prevents use of `?` which introduces the need for some matching, but it's not *too* bad. Change-Id: Ie2c3c0c9756c4c627176f64fb4e0054e717c26d1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6765 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-22 r/4961 feat(tvix/eval): add builtins.stringLengthsterni1-0/+5
Fairly straightforward, only thing of note is that we coerce (weakly) to string here as well. Change-Id: I03b427e657e402f1f9eb0f795b689bbf5092aba1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6745 Tested-by: BuildkiteCI Reviewed-by: wpcarro <wpcarro@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-22 r/4960 fix(tvix/eval): handle thunks in arithmetic builtinssterni1-20/+20
The simplest solution seems to be to pass references to arithmetic_op!() which avoids the moving annoyance we had to deal with in the builtins (no more popping!). We then use .force() to force the values and dereference any Thunks (which arithmetic_op! doesn't do for us). Change-Id: I0eb8ad60e80a0b3ba9d9f411e973ef8bcf136989 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6724 Tested-by: BuildkiteCI Reviewed-by: wpcarro <wpcarro@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-22 r/4955 feat(tvix/eval): Support builtins.lessThanWilliam Carroll1-1/+6
Extend and export the `cmp_op`, and this becomes trivial. Change-Id: I9c93fa4db0f5a1fc8b56928ea144676f79247de1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6557 Autosubmit: wpcarro <wpcarro@gmail.com> Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-22 r/4954 feat(tvix/eval): Sketch out impure builtinsGriffin Smith1-2/+12
Sketch out a new set of "impure" builtins, which supplement the existing set of "pure" builtins but are gated behind a feature flag, which allows them to be omitted by crates depending on tvix-eval that only want pure evaluation, such as tvixbolt. Change-Id: I2736017b5c9b4776bbba8758e108ec84887abd66 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6655 Reviewed-by: wpcarro <wpcarro@gmail.com> Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-21 r/4950 fix(tvix/eval): compare versions with an extra empty componentsterni1-2/+2
This is necessary because builtins.compareVersions compares versions in a subtly not-quite-but-still-lexicographical way: `pre` for example can have an effect if it is post-fixed: `2.3 < 2.3pre`. This is a violation of the rule that in a lexicographical ordering, the longer string is considered greater if they are otherwise equal. builtins.compareVersion is comparing lexicographically though, if you do the following transformation beforehand: 2.3 --split--> [ "2" "3" ] --append--> [ "2" "3" "" ] 2.3pre --split--> [ "2" "3" "pre" ] --append--> [ "2" "3" "pre" "" ] Comparing the transformed version is then done lexicographically: 2.3 < 2.3.0pre since [ "2" "3" "" ] < [ "2" "3" "0" "pre" ] Here, the `pre` rule never comes into effect because no comparison on it happens, instead we use the longer string rule of a lexicographical comparison. In the C++ codebase, the reason for this behavior is that the iterator-esque construct they use always yields the empty string before it exposes it has been fully consumed. This is probably intentional to support the postfixed `pre` which is, for example, used by NixOS versions (e.g. unstable post 22.05 is 22.11-pre). We replicate this behavior using the `Chain` iterator in `VersionPartsIter::new_for_cmp`. Change-Id: I021c69aa27b0b7deb949dffe50ed18b6de3a7b1f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6720 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-21 r/4947 fix(tvix/eval/versions): preserve the Number string exactlysterni1-2/+1
This is relevant for builtins.splitVersion: nix-repl> builtins.splitVersion "unstable-2022-02-21" [ "unstable" "2022" "02" "21" ] Change-Id: I0a0add178d95d5a82e112b41ed5f3ca5a19608f8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6710 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-21 r/4945 feat(tvix/eval): implement builtins.splitVersionsterni1-1/+16
This was fairly easy, thanks to the work already done by Thomas Frank. However, the implementation is suboptimal because we parse number parts only to convert them back to strings afterwards. I've chosen to tackle this problem in the future, since having an (inefficient) implementation of splitVersion will be helpful for debugging the slight discrepancies between C++ Nix and Tvix in the case of compareVersions. Change-Id: Id6ed8eeb77663ff650c8c53ea952875b1fb7ea84 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6688 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: grfn <grfn@gws.fyi> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-20 r/4943 refactor(tvix/eval): add VM::call_value helper methodVincent Ambo1-4/+2
This makes it possible to call a callable value (builtin or closure/lambda) directly, without unwrapping it first. This is needed for pretty much all higher-order functions to work correctly. This is mostly equivalent to the previous code in coerce_to_string for calling `__toString`, except it expects the argument(s) to already be placed on the stack. Note that the span for the `NotCallable` error is not currently guaranteed to make any sense, will experiment with this. Change-Id: I821224368d438a28900858b343defc1817e46a0a Reviewed-on: https://cl.tvl.fyi/c/depot/+/6717 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-20 r/4941 feat(tvix/eval): implement builtins.mapVincent Ambo1-1/+17
As we already have a VM passed to the builtins, we can simply execute the provided closure/lambda in it for each value. The primary annoyance with this is that we have to clone the upvalues for each element, but we can try making this cheaper in the future (it's also a general problem in the VM itself). Change-Id: I5bcf56d58c509c0eb081e7cf52f6093216451ce4 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6714 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-20 r/4936 fix(tvix/eval): make sure to deref thunk in type predicate builtinssterni1-18/+28
Previously we only matched the outer constructor after forcing which would mean that we would always return `false` if the inspected value was a thunk, regardless what value would be present inside. Change-Id: I361ea6e855e23ef8e5b59098a50b9cd59253803f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6692 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-20 r/4933 fix(tvix/eval): make sure to force before selecting in catAttrssterni1-5/+6
Previously, this would almost always crash because list items are thunked more often nowadays and selecting from a thunk would fail. Also we no longer pop from args, accessing it by index should avoid an unnecessary clone here. Change-Id: I4410c4c2e28cc255a2c7cf2a5322db3d2c556a0e Reviewed-on: https://cl.tvl.fyi/c/depot/+/6693 Reviewed-by: grfn <grfn@gws.fyi> Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-20 r/4932 refactor(tvix/eval/builtins): avoid unnecessary poppingsterni1-8/+4
Change-Id: I631b442e19e5c05455d705291c11037eae9ed9e0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6694 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-09-20 r/4931 refactor(tvix/eval): don't unnecessarily force in toStringsterni1-1/+2
Change-Id: I2bcc720ce7b6aa67ea5f145b1f2381a3ae833ac5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6691 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-19 r/4928 feat(tvix/eval): Support builtins.getAttrWilliam Carroll1-0/+11
Support looking-up values from attrsets by their keys. Change-Id: Ib37a472a511dab145f99ebc849879b3494e8e89f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6554 Reviewed-by: wpcarro <wpcarro@gmail.com> Reviewed-by: sterni <sternenseemann@systemli.org> Autosubmit: wpcarro <wpcarro@gmail.com> Tested-by: BuildkiteCI
2022-09-19 r/4927 feat(tvix/eval): Support builtins.hasAttrWilliam Carroll1-0/+6
See unit tests for examples :) Change-Id: Ieec51d780a7762cc455ca03a9dc1648a0711924a Reviewed-on: https://cl.tvl.fyi/c/depot/+/6553 Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: wpcarro <wpcarro@gmail.com> Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-19 r/4919 fix(tvix/eval): fix flipped sign in builtins.compareVersionssterni1-2/+2
Change-Id: I42fc0dc633fbd525eaa35689a41ec3717f4352a2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6690 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-19 r/4918 refactor(tvix/eval): handle forcing in Builtin::applysterni1-58/+46
Instead of arity, we pass a array reference to Builtin::new that describes how many arguments there are and which of them need to be forced, eliminating the need to force manually. Note that this change doesn't fix some of the instances where the the Builtin doesn't consider that the value could be a Thunk. Change-Id: Iadb58bb79886c30dc6b09dcf0ffad8abf28036a1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6662 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-19 r/4917 feat(tvix/eval): Support builtins.tailWilliam Carroll1-0/+10
TL;DR: - support `builtins.tail` - define `ErrorKind::TailEmptyList` and canonical error code - support basic unit tests Unsure whether or not the error should be a dedicated `ErrorKind`... Change-Id: Iae90fda1bb21ce7bdb1aaa2aeb2b8c1e6dcb0f05 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6545 Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: wpcarro <wpcarro@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-19 r/4916 feat(tvix/eval): Support builtins.substringWilliam Carroll1-0/+29
Nix's `builtins.substring`: - doesn't accept negative indexes for `beg` or `end`. Compare the error messages for: - `builtins.substring -3 5 "testing"` - `builtins.substring 3 -5 "testing"` - `builtins.substring -3 -5 "testing"` - returns an empty string when `beg >= end` - allows `end` to exceed the length of the input string Change-Id: I83af7a099d81b6d537ebe5029d946c7031cb7113 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6555 Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: wpcarro <wpcarro@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-18 r/4914 refactor(tvix/eval): Simplify forcing in builtinsGriffin Smith1-97/+57
Refactor the `force!` macro to a method on `Value` which returns a smart-pointer-esque type, which simplifies the callsite and eliminates rightward drift, especially for high-arity builtins. Change-Id: I97a7837580accfb4bbd03b24f2acdbd38645efa5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6656 Autosubmit: grfn <grfn@gws.fyi> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-09-17 r/4885 feat(tvix_eval): Support builtins.compareVersionsThoFrank1-0/+23
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/4882 feat(tvix/eval): Support builtins.elemAtWilliam Carroll1-0/+14
(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 lintssterni1-1/+1
Change-Id: I88482453a62955515a0dcc0b243351b2bbac5236 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6618 Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-09-15 r/4869 feat(tvix/eval): Support builtins.bitXorWilliam Carroll1-0/+7
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 Carroll1-0/+7
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 Carroll1-0/+7
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 Carroll1-0/+12
:) 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()sterni1-0/+26
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 Carroll1-0/+12
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/4862 feat(tvix/eval): Support builtins.headWilliam Carroll1-0/+8
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/4857 feat(tvix/eval): implement correct toString behaviorsterni1-4/+4
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/4848 fix(tvix/eval): force value in builtins.typeOfsterni1-2/+4
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
2022-09-10 r/4786 fix(tvix/eval): fix doc comment syntax where applicableVincent Ambo1-0/+3
As pointed out by grfn on cl/6091 Change-Id: I28308577b7cf99dffb4a4fd3cc8783eb9ab4d0d6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6460 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-09 r/4782 fix(tvix/eval): force value passed to builtins.toStringVincent Ambo1-3/+25
This introduces a macro to do the forcing, but this solution isn't very nice and also does not work in all cases yet. Change-Id: Icd18862ec47edb82c0efc3af5835a6cb6126f629 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6456 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4750 fix(tvix/eval): force argument of builtins.lengthVincent Ambo1-1/+4
Change-Id: Iaf94dfc7cb058f5c1c311066d92e01512e09cf71 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6417 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4745 refactor(tvix/eval): add macros for generating Value castersVincent Ambo1-4/+4
The casting methods of `Value` are pretty verbose, and actually incorrect before this commit as they did not account for inner thunk values. To address this, we first attempt to make them correct by introducing a standard macro to generate them and traverse the inner thunk(s) if necessary. This is likely to be a performance hit as it will now involve more cloning of values. We can do multiple things to alleviate this, but should do some measurements first. Change-Id: If315d6e2afe7b69db727df535bc6cbfb89a691aa Reviewed-on: https://cl.tvl.fyi/c/depot/+/6412 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4744 refactor(tvix/eval): pass a VM reference to builtinsVincent Ambo1-19/+19
This makes it possible for builtins to force values on their own, without the VM having to apply a strictness mask to the arguments first. Change-Id: Ib49a94e56ca2a8d515c39647381ab55a727766e3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6411 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
generated by cgit-pink 1.4.1 (git 2.44.2) at 2024-11-04T06·55+0000