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2022-10-28 r/5217 docs(tvix/eval): add "intern literals" to future optimisationsAdam Joseph1-0/+6
Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I460230863de853ca5248733bc977d4780b216f36 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7096 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-10-28 r/5216 feat(wpcarro/blog): Importing subtrees blog postWilliam Carroll2-0/+154
:) Change-Id: Ib6a5990551cb0c86d0fc7f9a4121e3a6613ec6a1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7125 Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: wpcarro <wpcarro@gmail.com> Tested-by: BuildkiteCI
2022-10-27 r/5215 fix(tvix/eval): correct wasm32-unknown-unknown to wasm32-noneAdam Joseph1-0/+11
Rustc uses wasm32-unknown-unknown, which is rejected by config.sub, for wasm-in-the-browser environments. Rustc should be using wasm32-unknown-none, which config.sub accepts. Hopefully the rustc people will change their triple before stabilising this triple. In the meantime, we fix it here in order to unbreak tvixbolt. https://doc.rust-lang.org/beta/nightly-rustc/rustc_target/spec/wasm32_unknown_unknown/index.html Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I941fd8d6f3db4e249901772fd79321ad88cd9cc6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7107 Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-10-27 r/5214 refactor(tvix/eval): search-and-replace changesAdam Joseph1-5/+5
This commit contains two search-and-replace renames which are broken out from I04131501029772f30e28da8281d864427685097f in order to reduce the noise in that CL: - `is_thunk -> is_suspended_thunk`, since there are now OpThunkClosure and OpThunkSuspended - `compile_lambda_or_thunk` -> `compile_lambda_or_suspension` Change-Id: I7cc5bbb75ef6605e3428c7be27e812f41a10c127 Signed-off-by: Adam Joseph <adam@westernsemico.com> Reviewed-on: https://cl.tvl.fyi/c/depot/+/7037 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-27 r/5213 feat(tvix/eval): builtins.import without RefCellAdam Joseph6-138/+155
CL/6867 added support for builtins.import, which required a cyclic reference import->globals->builtins->import. This was implemented using a RefCell, which makes it possible to mutate the builtins during evaluation. The commit message for CL/6867 expressed a desire to eliminate this possibility: This opens up a potentially dangerous footgun in which we could mutate the builtins at runtime leading to different compiler invocations seeing different builtins, so it'd be nice to have some kind of "finalised" status for them or some such, but I'm not sure how to represent that atm. This CL replaces the RefCell with Rc::new_cyclic(), making the globals/builtins immutable once again. At VM runtime (once opcodes start executing) everything is the same as before this CL, except that the Rc<RefCell<>> introduced by CL/6867 is turned into an rc::Weak<>. The function passed to Rc::new_cyclic works very similarly to overlays in nixpkgs: a function takes its own result as an argument. However instead of laziness "breaking the cycle", Rust's Rc::new_cyclic() instead uses an rc::Weak. This is done to prevent memory leaks rather than divergence. This CL also resolves the following TODO from CL/6867: // TODO: encapsulate this import weirdness in builtins The main disadvantage of this CL is the fact that the VM now must ensure that it holds a strong reference to the globals while a program is executing; failure to do so will cause a panic when the weak reference in the builtins is upgrade()d. In theory it should be possible to create strong reference cycles the same way Rc::new_cyclic() creates weak cycles, but these cycles would cause a permanent memory leak -- without either an rc::Weak or RefCell there is no way to break the cycle. At some point we will have to implement some form of cycle collection; whatever library we choose for that purpose is likely to provide an "immutable strong reference cycle" primitive similar to Rc::new_cyclic(), and we should be able to simply drop it in. Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I34bb5821628eb97e426bdb880b02e2097402adb7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7097 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-27 r/5212 chore(ops/pipelines/depot/protoCheck): include name in labelFlorian Klink1-1/+1
Change-Id: I2010bd6e4600e9f1dd6e6af40e81ecbbb72c20d0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7054 Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2022-10-27 r/5211 chore(3p/sources): Bump channels & overlayssterni4-19/+23
* //users/grfn/system/home/modules: The MultiMC saga continues with: > PolyMC has been removed from nixpkgs due to a hostile takeover > by a rogue maintainer. The rest of the maintainers have made a > fork which is packaged as 'prismlauncher'. * //third_party/overlays: Override tdlib to 1.8.7 while waiting for nixpkgs to catch up. * //users/tazjin/finito: Disable on CI temporarily as it has been broken by some change in nixpkgs, now failing to compile a dependency. Change-Id: Ide038a8d466bfdc19dc9016beb03ae4817939a2b Reviewed-on: https://cl.tvl.fyi/c/depot/+/7066 Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: grfn <grfn@gws.fyi> Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-10-27 r/5210 chore(3p): obtain home-manager source from upstream directlysterni4-0/+24
Instead of waiting for nixpkgs to [update home-manager], we can track the upstream repository directly (using master as a channel seems to be common practice) and overlay the up to date source into our nixpkgs instance. For //users/tazjin/home and //users/wpcarro/nixos/marcus, we need to set `home.stateVersion`, since the default value for this option was removed some time this summer. [update home-manager]: https://github.com/NixOS/nixpkgs/issues/197907 Change-Id: I8c153fb7d3b55a4040652a5d619761b640119105 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7098 Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-10-27 r/5209 feat(web/tvl): add ezemtsov to TVL graphVincent Ambo1-0/+3
Change-Id: Iaf21baa512c4ef3f9c6e56745ae524f9a943f5f5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7106 Autosubmit: tazjin <tazjin@tvl.su> Reviewed-by: ezemtsov <eugene.zemtsov@gmail.com> Tested-by: BuildkiteCI
2022-10-27 r/5208 feat(web/tvl): add etu to TVL graphVincent Ambo1-0/+2
Change-Id: I77cd2686891a166860d6720930743667e667043e Reviewed-on: https://cl.tvl.fyi/c/depot/+/7105 Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Reviewed-by: ezemtsov <eugene.zemtsov@gmail.com>
2022-10-27 r/5207 chore(web/tvl): clean up TVL graph a bitVincent Ambo1-16/+9
* add an explicit `tvix` node to track who arrived here through Tvix-related means * remove nodes that aren't actually relevant or informative for how people got to TVL (e.g. `anon1` or `lgbtslack`). * remove some people that have been missing for a long time and are probably not coming back Change-Id: I110180daa3c3c8f48593000b9e8d7cd4cf32b741 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7104 Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: ezemtsov <eugene.zemtsov@gmail.com>
2022-10-26 r/5206 feat(wpcarro/blog): git revision numbers as refsWilliam Carroll2-0/+92
See blog post Change-Id: I4b7dcdc85e5125876441b2f157e3d6ddc3cd3140 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7103 Tested-by: BuildkiteCI Reviewed-by: wpcarro <wpcarro@gmail.com>
2022-10-26 r/5205 feat(wpcarro/blog): NixOS disk clean-up (note to self)William Carroll2-0/+120
Another note to Future Me Change-Id: Icf2edbbc6118b2b689ff403c38e91a69089a27a2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7099 Reviewed-by: wpcarro <wpcarro@gmail.com> Tested-by: BuildkiteCI
2022-10-26 r/5204 feat(web/tvl): add amjoseph to graphAdam Joseph1-0/+2
Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I5d58ba2eb756c981ab86f741888024822ab65da6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7100 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-26 r/5203 feat(web/tvl): add j4m3s to graphJames Landrein1-0/+2
Change-Id: Ibd8dfe38b5863fd2a02aa20558089f059c1cb1b5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7102 Autosubmit: j4m3s <james.landrein@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-26 r/5202 feat(wpcarro/git): Set --autostash during rebasesWilliam Carroll1-0/+2
Much less painful Change-Id: I77f1220979d3ab2b2a4c45c7d0018b92df84fee1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7101 Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: wpcarro <wpcarro@gmail.com> Tested-by: BuildkiteCI
2022-10-26 r/5201 docs(tvix/eval): StackIdx, LocalIdx UpvalueIdxAdam Joseph2-5/+7
This adds a comment noting that StackIdx is an offset relative to the base of the current CallFrame, whereas UpvalueIdx is an absolute index into the upvalues array. It also removes the confusing mention of StackIdx in the descriptive comment for LocalIdx. They index into totally different structures; one exists at runtime and the other exists at compile time. Change-Id: Ib932b1b0679734c15001e8c5c95a08293fa016b4 Signed-off-by: Adam Joseph <adam@westernsemico.com> Reviewed-on: https://cl.tvl.fyi/c/depot/+/7017 Reviewed-by: grfn <grfn@gws.fyi> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-26 r/5200 feat(tvix/eval): add NixList::force_elements()Adam Joseph1-0/+5
This adds a function NixList::force_elements() which forces each element of the list shallowly. This behavior is needed for `builtins.replaceStrings`, and probably a few other builtins as well. Signed-off-by: Adam Joseph <adam@westernsemico.com> Change-Id: I3f0681acbbfe50e781b5f07b6a441647f5e6f8da Reviewed-on: https://cl.tvl.fyi/c/depot/+/7094 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
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 Landrein7-0/+13
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>
2022-10-25 r/5197 feat(wpcarro/compiler): Support Vector typeWilliam Carroll5-95/+192
Support an array that dynamically resizes itself, and replace usages of `List`, `Array`, and `Queue` with `Vec`. Change-Id: I910b140b7c1bdddae40e08f8191986dccbc6fddf Reviewed-on: https://cl.tvl.fyi/c/depot/+/7080 Tested-by: BuildkiteCI Reviewed-by: wpcarro <wpcarro@gmail.com>
2022-10-25 r/5196 feat(wpcarro/compiler): Support string literal typeWilliam Carroll3-5/+34
``` repl> "Hello, world" String repl> (fn x "testing") a0 -> String ``` Change-Id: Ia76299a56aa4d2032c9a21277e2fddfb2e055831 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7079 Tested-by: BuildkiteCI Reviewed-by: wpcarro <wpcarro@gmail.com>
2022-10-25 r/5195 refactor(wpcarro/compiler): Modularize debug fnsWilliam Carroll7-85/+91
Define `debug.ml` and `prettify.ml` to clean-up some code. Change-Id: Iee2e1ed666f2ccb5e56cc50054ca85b8ba513f3b Reviewed-on: https://cl.tvl.fyi/c/depot/+/7078 Tested-by: BuildkiteCI Reviewed-by: wpcarro <wpcarro@gmail.com>
2022-10-24 r/5194 feat(wpcarro/scratch): Implement "Algorithm W"William Carroll7-1/+658
I've been wanting to grok Haskell-style type inference for awhile, so instead of just watching conference talks and reading papers about it, I've decided to attempt to implement it to more readily test my understanding of it. Change-Id: I69261202a3d74d55c6e38763d7ddfec73c392465 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6988 Tested-by: BuildkiteCI Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: wpcarro <wpcarro@gmail.com>
2022-10-24 r/5193 refactor(tvix/eval): Implement value comparison with a methodGriffin Smith3-26/+47
Rather than implementing all of the interesting semantics of value comparison with a macro bound to the VM, implement the bulk of the logic with a method on Value itself that returns an Ordering, and then use the macro to implement the comparison against that Ordering. This has no functional change, but paves the way to implementing lexicographic comparison of list values, which is supported in the latest version of upstream nix. Change-Id: I8af1a020b41577021af5939f5edc160c407d4a9e Reviewed-on: https://cl.tvl.fyi/c/depot/+/7069 Autosubmit: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-24 r/5192 feat(tvix/eval): Implement builtins.mapAttrsGriffin Smith4-0/+23
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/5191 feat(tvix/eval): add builtins.langVersionVincent Ambo1-0/+2
The last bump in langVersion (5->6) in C++ Nix was due to making lists comparable (commit `09471d2680292af48b2788108de56a8da755d661`), which we support in Tvix with cl/7070. Change-Id: Id3beed5150b8fb6e0a46a4d1b7e3942022a65346 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7074 Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-10-24 r/5190 feat(tvix/eval): implement builtins.currentSystemAdam Joseph6-0/+360
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>
2022-10-24 r/5189 feat(nix/eval): Implement builtins.groupByGriffin Smith3-0/+34
Change-Id: I3e0aa017a7100cbeb86d2e5747471b36affcc102 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7038 Autosubmit: grfn <grfn@gws.fyi> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2022-10-23 r/5188 refactor(sterni/nix/fun): key can also be an intsterni1-8/+6
Change-Id: Ia27be70ef07d9aa7d13821a2808ded9cf16506c8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7073 Reviewed-by: sterni <sternenseemann@systemli.org> Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-10-23 r/5187 fix(tvix/eval): Use natural arg order for call_withGriffin Smith2-2/+3
Since we push arguments onto a stack when calling multi-argument functions, we actually were ending up calling `call_with` with the arguments in the *reverse order* - we patched around this by passing the arguments in the reverse order for `foldl'`, but it makes more sense to have them just be the order that the function would be called with in user surface code instead. Change-Id: Ifddb98f46970ac89872383709c3ce758dc965c65 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7067 Reviewed-by: sterni <sternenseemann@systemli.org> Autosubmit: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-10-23 r/5186 feat(tvix/eval): initial attempt at setting lambda namesVincent Ambo4-15/+39
When compiling a lambda, take the name of the outer slot (if available) and store it as the name on the lambda. These names are then shown in the observer, and nowhere else (so far). It is of course common for these things to thread through many different context levels (e.g. `f = a: b: c: ...`), in this setup only the outermost closure or thunk gains the name, but it's better than nothing. Change-Id: I681ba74e624f2b9e7a147144a27acf364fe6ccc7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7065 Reviewed-by: grfn <grfn@gws.fyi> Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
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>
2022-10-23 r/5184 fix(tvix/eval): thunk let-expressionVincent Ambo1-1/+5
There are some rare scope cases with deferred access where this doesn't behave correctly otherwise. Change-Id: I6c774f5e62c1cb50b598026c54727017a52cd22d Reviewed-on: https://cl.tvl.fyi/c/depot/+/7064 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-10-23 r/5183 fix(tvix/eval): fix condition for useless inherit warningVincent Ambo1-2/+2
The warning needs to consider whether it is occuring inside of a thunk, i.e. the dynamic ancestry chain of lambda contexts must be inspected and not just the current scope. Change-Id: I5cf5482d67a8bbb9f03b0ecee7a62f58754f8e59 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7063 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: grfn <grfn@gws.fyi>
2022-10-23 r/5182 refactor(tvix/eval): simplify check for deferring upvalue resolutionVincent Ambo1-9/+4
This check is now actually simply equivalent to checking whether the target has been initialised or not. Change-Id: I30660d11073ba313358f3a64234a90ed81abf74c Reviewed-on: https://cl.tvl.fyi/c/depot/+/7062 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-10-23 r/5181 feat(tvix/eval): add mechanism for placeholder builtinsVincent Ambo1-0/+19
These are builtins which can be basically implemented as the identity function from the perspective of pure evaluation, and which help us get closer to evaluating nixpkgs. For now, builtins added here will be "usable" and just emit a warning about not being implemented yet. Change-Id: I0fce94677f01c98c0392aeefb7ab353c7dc7ec82 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7060 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-10-23 r/5180 refactor(tvix/eval): simplify self-reference checkVincent Ambo1-1/+1
Checking the computed depth and stack slot against the computed depth and stack slot is equivalent to just checking the indices into the locals vector against each other (i.e. "is the slot we're compiling into the slot we're accessing?") Change-Id: Ie85a68df073e3b2e3d9aba7fe8634c48eada81fc Reviewed-on: https://cl.tvl.fyi/c/depot/+/7059 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-10-23 r/5179 chore(tvix/eval): return detailed TvixBug if an upvalue is missingVincent Ambo1-1/+17
When capturing an upvalue, return a detailed TvixBug error that contains metadata about what exactly was missing. This particular thing helps with debugging some scope issues we still seem to have. Change-Id: I1089a1df4b3bbc63411a4907c3641a5dc3fad984 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7058 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-10-23 r/5178 fix(tvix/eval): detect cycles when printing infinite valuesVincent Ambo4-24/+45
Using the same method as in Thunk::deep_force, detect cycles when printing values by maintaining a set of already seen thunks. With this, display of infinite values matches that of Nix: > nix-instantiate --eval --strict -E 'let as = { x = 123; y = as; }; in as' { x = 123; y = { x = 123; y = <CYCLE>; }; } > tvix-eval -E 'let as = { x = 123; y = as; }; in as' => { x = 123; y = { x = 123; y = <CYCLE>; }; } :: set Change-Id: I007b918d5131d82c28884e46e46ff365ef691aa8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7056 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-10-22 r/5177 feat(tvix/eval): add `TvixBug` error kindVincent Ambo1-1/+23
This can be raised in cases where some panics lurk (e.g. indexed accesses). Change-Id: I93f4d60568277e9c5635aa52f378645626d68c5e Reviewed-on: https://cl.tvl.fyi/c/depot/+/7057 Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
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 Smith10-62/+100
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 Ambo3-6/+29
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>
2022-10-21 r/5173 chore(buf): Use nixpkgs-provided bufFlorian Klink5-37/+14
The version of buf used is quite old. nixpkgs provides a more recent version, but it requires us to migrate config to the latest version. depot_scanner.proto doesn't honor some of the conventions, so we need allow_comment_ignores and drop a bunch of comments in there. Change-Id: Ic978fe92fb7c8471f58c137497528f18aad8f3ab Reviewed-on: https://cl.tvl.fyi/c/depot/+/7053 Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: tazjin <tazjin@tvl.su>
2022-10-21 r/5172 fix(tvix): distinguish search- and relative path resolution errorssterni4-11/+19
Failures to resolve a nix search path lookup in angle brackets can be caught using tryEval (if it reaches the runtime). Resolving relative paths (either to the current directory or the current user's home) can never be caught, even if they happen inside a thunk at runtime (which is currently the case for home-relative paths). Change-Id: I7f73221df66d82a381dd4063358906257826995a Reviewed-on: https://cl.tvl.fyi/c/depot/+/7025 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: Adam Joseph <adam@westernsemico.com> Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-10-20 r/5171 refactor(nix/dependency-analyzer): use unsafeDiscardOutputDependencysterni1-18/+2
Turns out that pathContextDrvPath already exists as a builtin which is very convenient. Actually somewhat embarassing that I missed this for so long. Change-Id: Ieb5e113d70dec548b3053911ff9dbe9ed48402be Reviewed-on: https://cl.tvl.fyi/c/depot/+/7050 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-20 r/5170 test(tvix/verify-lang-tests): also check notyetpassing testssterni1-12/+12
Adding these to the C++ Nix CI ensures that it is possible for the tests in that directory to pass at all. Mainly this would catch situations like fixed in a previous CL when moving the tests around would break them so that they wouldn't even pass in C++ Nix. For this to work, we need to track skips by basename to be directory-independent (assuming that every skipped test name is unique is hopefully okay). Change-Id: If6cb63ebdef0fc19b082b6a04e79ada2e47c658e Reviewed-on: https://cl.tvl.fyi/c/depot/+/7048 Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-10-20 r/5169 fix(nix/buildkite) don't fail if gated step has no branchesEvgeny Zemtsov1-1/+1
Change-Id: Id3365c18bc3904b42e8b129a513cff4480a2cb07 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7051 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
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