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2022-09-07 r/4694 feat(tvix/eval): insert strictness points for attribute set keysVincent Ambo1-2/+10
All attribute set *key* related operations strictly evaluate all key fragments, including during construction of an attribute set. Change-Id: I3519e5e9b0886c2cdc8615ea7dcb5f7be0c59b3f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6358 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-07 r/4693 feat(tvix/eval): insert strictness points for unary/binary operatorsVincent Ambo1-1/+17
The arguments of all unary/binary operators that are built in to Nix are forced when encountered. This emits the necessary OpForce operations. Change-Id: I691fcdbebfe7586cfe217c68d44b10b1192f82d1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6357 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-07 r/4692 chore(tvix/eval): thread `slot` value through all compiler methodsVincent Ambo1-54/+58
With this change any compilation of an expression is aware of its own stack slot if it is leaving identifiers on the stack. Change-Id: I0c9f148ae06b078a46b25180c4961686d5f2e166 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6356 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-07 r/4691 chore(tvix/eval): thread `slot` value through Compiler:compile_attrVincent Ambo1-17/+23
This threads the current local slot through the `compile_attr` function and all of its callers. At the moment this does not improve any user-facing behaviour, just internally changes the way in which some correct expressions would fail to run. Eventually this slot will need to reach everywhere ... Change-Id: Iba73123dd1ced421093d8fc18ebeeffc16efacf8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6355 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-07 r/4690 test(tvix/eval): test very simple late-bound identifier accessVincent Ambo2-0/+5
This is the simplest kind of thunk that can be created (and so far the only one the compiler knows how to create), in which an identifier inside a `let` encounters a value that is bound *after* it is initialised. Change-Id: I6ea4408a3baef1e7d5137365d70804283f2dbf8e Reviewed-on: https://cl.tvl.fyi/c/depot/+/6354 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-07 r/4689 feat(tvix/eval): always emit OpForce as the last instructionVincent Ambo3-0/+14
Change-Id: Id70c987f654dc5d9b47db74e395281309762b468 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6353 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-07 r/4688 feat(tvix/eval): implement OpForce in VMVincent Ambo4-2/+46
This operation forces the evaluation of a thunk. There is some potential here for making an implementation that avoids some copies, but the thunk machinery is tricky to get right so the first priority is to make sure it is correct by keeping the implementation simple. Change-Id: Ib381455b02f42ded717faff63f55afed4c8fb7e3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6352 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4687 feat(wpcarro/rust): Define Rc<T> exampleWilliam Carroll3-2/+15
My foray into "smart pointer" land. Change-Id: I4ca775c72168dd34d90bf88fa41149867cd7fdae Reviewed-on: https://cl.tvl.fyi/c/depot/+/6244 Tested-by: BuildkiteCI Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: wpcarro <wpcarro@gmail.com>
2022-09-06 r/4686 feat(wpcarro/emacs): Drop racer.el supportWilliam Carroll2-3/+5
AFAIU `racer` is deprecated in favor of LSP. Change-Id: I8bee3bb32d208b4f21cd7699ae93fc76a69ec964 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6051 Tested-by: BuildkiteCI Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: wpcarro <wpcarro@gmail.com>
2022-09-06 r/4685 chore(overlays/tvl): Remove stale overlaysWilliam Carroll1-29/+0
As the comments explain: > Workaround for srcOnly with separateDebugInfo until > https://github.com/NixOS/nixpkgs/pull/179170 is merged. > upgrade home-manager until the service-generation fix has landed upstream > https://github.com/nix-community/home-manager/issues/2846 > Outdated test-data, see https://github.com/pganssle/zoneinfo/pull/115 > Can be dropped when https://github.com/NixOS/nixpkgs/pull/170450 lands. All of the linked issues appear merged (or closed with a link to a merge PR), so -- barring any failing Buildkite builds -- these may be safe to remove. Change-Id: I85e9f3ba2ca970a11754a85cb9574705144bfdfa Reviewed-on: https://cl.tvl.fyi/c/depot/+/6162 Reviewed-by: wpcarro <wpcarro@gmail.com> Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-06 r/4684 fix(users/wpcarro): Fix Hadrian pathWilliam Carroll2-2/+2
This looks like a copy-paste error. Change-Id: I21594412075d361d824074b7612c8dbafb4f9f30 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6369 Tested-by: BuildkiteCI Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: wpcarro <wpcarro@gmail.com>
2022-09-06 r/4683 feat(wpcarro/emacs): Set initial-buffer-choice per-hostWilliam Carroll4-4/+7
Work machines should prefer `/hadrian` and personal machines should prefer `/depot`. Change-Id: I03b605cc5ce233767146d83f14f368863897cf8b Reviewed-on: https://cl.tvl.fyi/c/depot/+/6368 Tested-by: BuildkiteCI Reviewed-by: wpcarro <wpcarro@gmail.com> Autosubmit: wpcarro <wpcarro@gmail.com>
2022-09-06 r/4682 fix(tvix/eval): allocate Thunk::upvalues with known capacityVincent Ambo1-1/+1
The capacity (i.e. number of builtins) is known from the lambda, so we can size it correctly right away. Change-Id: Iab0b5a3f47d450fa9866c091ebbbed935b934907 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6351 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4681 feat(tvix/eval): implement OpThunk for runtime thunk constructionVincent Ambo1-2/+17
Implements an operation very similar to `OpClosure` which populates a thunk's upvalues and leaves it on the stack. Change-Id: I753b4dfeeaae6919316c7028ec361aaa13d87646 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6350 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4680 chore(3p/sources): Bump channels & overlayssterni1-21/+21
Change-Id: I3a5cca3ac327d6437c8b47fcd496ad4d969b958c Reviewed-on: https://cl.tvl.fyi/c/depot/+/6364 Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-06 r/4679 refactor(tvix/eval): extract VM::populate_upvalues functionVincent Ambo1-30/+42
This function is reusable between thunks & closures. Change-Id: I44d5f9897b087a385c8e75027d2ff39c48a096f0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6349 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4678 refactor(tvix/eval): Carry lambda & upvalues directly in CallFrameVincent Ambo1-13/+25
CallFrame has to work for both thunks & closures (as a thunk is basically a "weird 0-argument closure"). We opt to store the common, relevant fields directly in the frame to avoid having to dereference through the nested structures constantly (which would be especially annoying in the case of thunks). Change-Id: I47781597b84ec5cd55502dba1713e92cf2592af3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6348 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4677 refactor(tvix/eval): introduce UpvalueCarrier traitVincent Ambo5-18/+81
This trait abstracts over the commonalities of upvalue handling between closures and thunks. It allows the VM to simplify the code used for setting up upvalues, without duplicating between the two different types. Note that this does not yet refactor the VM code to optimally make use of this. Change-Id: If8de5181f26ae1fa00d554f1ae6ea473ee4b6070 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6347 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4676 refactor(tvix/eval): simplify thunk representationsVincent Ambo2-8/+8
For now, do not distinguish between closing and non-closing thunks, it will make the initial implementation easier. See Knuth etc. Change-Id: I0bd51e0f89f2c77e90bac63b507e5027b649e3d8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6346 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4675 feat(tvix/eval): emit thunks for recursive local scope resolutionVincent Ambo1-6/+13
When resolving a value on the same level that is known but not yet defined, emit a thunk. Consider for example: let # v--- requires a thunk a = 1 * b; b = 10; in a Change-Id: I922cb50973ebe05e335a7bc7cb851960cf34733b Reviewed-on: https://cl.tvl.fyi/c/depot/+/6345 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4674 feat(tvix/eval): Add Compiler::thunk method for emitting thunksVincent Ambo3-1/+41
The logic in this method is *very* similar to `compile_lambda`. It is intended to be called around any expression that should be thunked (such as function applications, attribute set values, etc.). Change-Id: Idfbb2daa9f4b735095378fb9c39a2fd07c8cff91 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6344 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4673 feat(tvix/eval): introduce Value::Thunk variantVincent Ambo2-1/+61
Introduces the representation of runtime thunks, that is lazily evaluated values. Their representation is very similar to closures. Change-Id: I24d1ab7947c070ae72ca6260a7bbe6198bc8c7c5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6343 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4672 refactor(tvix/eval): extract compiler's upvalue logic into helperVincent Ambo1-14/+20
This exact same logic is reused for thunk creation. Change-Id: I731db9cc659a1f2ca87db55d58d6ff632f417812 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6342 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4671 test(tvix/eval): add a test case for nested, deferred upvaluesVincent Ambo2-0/+7
This test case was previously broken by the bug introduced by confusing local and stack indexes. Change-Id: Ibef299dad266c6105deac1da5dde112fe9f640b1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6341 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4670 fix(tvix/eval): distinguish statically between StackIdx and LocalIdxVincent Ambo2-94/+115
Previously the functions in the scope module returned usize values, which - sometimes from the same function - were either indexes into the runtime stack *or* indexes into the compiler's local stack. This is extremely confusing because it requires the caller to be aware of the difference, and it actually caused subtle bugs. To avoid this, there is now a new LocalIdx wrapper type which is used by the scope module to return indexes into the compiler's stack, as well as helpers for accounting for the differences between these indexes and the runtime indexes. Change-Id: I58f0b50ad94b28a304e3372fd9731b6590b3fdb8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6340 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4669 feat(tvix/eval): emit OpFinalise when local scopes are completeVincent Ambo3-0/+13
With this change, the runtime can correctly capture deferred upvalues. Change-Id: I1e43b7b1ac2553b1812424adfc8bd08ef77bf1ea Reviewed-on: https://cl.tvl.fyi/c/depot/+/6339 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4668 feat(tvix/eval): track whether locals needs to be finalisedVincent Ambo2-0/+12
When encountering a deferred local upvalue, the compiler will now mark the corresponding local as needing a finaliser which makes it possible to emit the OpFinalise instruction for this stack slot a little bit down the line. Change-Id: I3962066f10fc6c6e1472722b8bdb415a811e0740 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6338 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4667 feat(tvix/eval): implement OpFinalise instructionVincent Ambo3-1/+28
This instruction finalises the initialisation of deferred upvalues in closures (and soon, thunks). The compiler does not yet emit this instruction, some more accounting is needed for that. Change-Id: Ic4181b26e19779e206f51e17388559400da5f93a Reviewed-on: https://cl.tvl.fyi/c/depot/+/6337 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4666 feat(tvix/eval): set up deferred upvalues at runtimeVincent Ambo2-3/+7
This will leave a sentinel value in the upvalue slot in which the actual value is to be captured after resolution once a scope is fully set up. Change-Id: I12b37b0dc8d32603b03e675c3bd039468e70b354 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6336 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4665 feat(tvix/eval): detect deferred upvalue capturingVincent Ambo3-3/+22
Uses the threaded through slot offset to determine whether initialisation of a captured local upvalue must be defered to a later point where all values of a scope are available. This adds a new data representation to the opcode for this situation, but the equivalent runtime handling is not yet implemented. This is in part because there is more compiler machinery needed to find the resolution point. Change-Id: Ifd0c393f76abfe6e2d91483faf0f58947ab1dedc Reviewed-on: https://cl.tvl.fyi/c/depot/+/6329 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-06 r/4664 chore(tvix/eval): thread current slot index through compilerVincent Ambo1-34/+34
While compiling local bindings, we now know the stack slot of the value currently being compiled. This will let us determine whether an upvalue can be captured directly or whether it needs to wait for a synchronisation point at which the upvalue can be instantiated. This machinery lets us avoid unnecessary work at runtime when instantiating closures that actually do not need complicated recursive resolution. This change itself introduces no new functionality, but since the threading is noisy it is split out as a separate change. Change-Id: I847c677ee8f6725fda1d2efd689b6a58bdccb779 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6328 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-06 r/4663 refactor(tvix/eval): optimise initialisation of localsVincent Ambo1-23/+19
Instead of looking up the local to be initialised by its name again, we can simply track the index at which it was declared from the point where the declaration was made. This reduces some string cloning and removes unnecessary logic. It also theoretically makes the *current* index available during locals compilation, which can be used to optimise some recursion cases. Change-Id: I06f403603d4f86c3d319debfe74b5a52eec00990 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6327 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4662 refactor(tvix/eval): declare all locals before compiling themVincent Ambo1-1/+12
This actually makes things full-circle, as this tree already had this implementation once before all the other required components were in place. With this commit, the compiler can resolve recursive upvalues within the same scope (though they will not yet work at runtime). Change-Id: I6267e477d08f367257c3a6dde054b880d7b47211 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6326 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4661 refactor(tvix/eval): decouple local depth & initialisation trackingVincent Ambo2-56/+33
In order to resolve recursive references correctly, these two can not be initialised the same way as a potentially large number of (nested!) locals can be declared without initialising their depth. This would lead to issues with detecting things like shadowed variables, so making both bits explicit is preferable. Change-Id: I100cdf1724faa4a2b5a0748429841cf8ef206252 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6325 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4660 fix(tvix/eval): correct runtime error for missing dynamic upvalueVincent Ambo1-0/+6
Change-Id: I75c351619780fdc5186a54f3df9b244ada984069 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6324 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4659 fix(tvix/eval): instantiate *new* closures from blueprints each timeVincent Ambo6-17/+33
The previous closure refactoring introduced a bug in which the same closure object would get mutated constantly for each instance of a closure, which is incorrect behaviour. This commit instead introduces an explicit new Value variant for the internal "blueprint" that the compiler generates (essentially just the lambda) and uses this variant to construct the closure at runtime. If the blueprint ever leaks out to a user somehow that is a critical bug and tvix-eval will panic. As a ~treat~ test for this, the fibonacci function is being used as it is a self-recursive closure (i.e. different instantiations of the same "blueprint") getting called with different values and it's good to have it around. Change-Id: I485de675e9bb0c599ed7d5dc0f001eb34ab4c15f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6323 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4658 fix(tvix/eval): correctly thread through dynamic upvaluesVincent Ambo6-12/+112
This puts together the puzzle pieces for threading dynamic upvalues (that is, upvalues resolved from the `with`-stack) all the way through. Reading the test case enclosed in this commit and walking through it is recommended to understand what problem is being tackled here. In short, because the compiler can not statically know *which* with-scope a dynamic argument is resolved from it needs to lay the groundwork for resolving from *all* possible scopes. There are multiple different approaches to doing this. The approach chosen in this commit is that if a dynamic upvalue is detected, the compiler will emit instructions to close over this dynamic value in *all* enclosing lambda contexts. It uses a new instruction for this that will leave around a sentinel value in case an identifier could not be resolved, and wire the location of this found value (or sentinel) up through the upvalues to the next level of nesting. In this tradeoff, tvix potentially closes over more upvalues than are needed (but in practice, how often do people create *really* deep `with`-stacks? and in *this* kind of code situation? maybe we should even warn for this!) but avoids keeping the entire attribute sets themselves around. Looking at the test case, each surrounding closure will close over *all* dynamic identifiers that are referenced later on visible to it, but only the last one for each identifier will actually end up being used. This also covers our bases for an additional edge-case this creates, in which an identifier potentially resolves to a dynamic upvalue *and* to a dynamic value within the function's own scope (again, would anyone really do this?) by introducing a resolution instruction for that particular case. There is likely some potential for cleaning up this code which is quite ugly in some parts, but as this implementation is now carefully calibrated to work I decided it is time to commit it and clean it up in subsequent commits. Change-Id: Ib701e3e6da39bd2c95938d1384036ff4f9fb3749 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6322 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4657 refactor(tvix/eval): thread dynamic upvalues through all contextsVincent Ambo2-9/+65
With this change, encountering a dynamic upvalue will thread through all contexts starting from the lowest context that has a non-empty `with`-stack. The additional upvalues are not actually used yet, so the effective behaviour remains mostly the same. This is done in preparation for an upcoming change, which will implement proper dynamic resolution for complex cases of nested dynamic upvalues. Yes, this whole upvalue + dynamic values thing is a little bit mind-bending, but we would like to not give up being able to resolve a large chunk of the scoping behaviour statically. Change-Id: Ia58cdd47d79212390a6503ef13cef46b6b3e19a2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6321 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4656 feat(tvix/eval): allow ignoring locals by prefixing with _Vincent Ambo1-1/+2
This is a common idiom in both Nix and other languages when a local is declared without actually being used. Since Tvix warns for unused locals, having this available is useful and can be included in the final error message as a suggestion if an unused variable is intentional. Change-Id: Ia85f704ba183499a3bae657c58166e2e29f9bde5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6320 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4655 fix(tvix/eval): correctly resolve dynamic upvalues one scope upVincent Ambo5-6/+29
This does not yet correctly resolve them if they are more than one scope up, however. Change-Id: I6687073c60aee0282f2b6ffc98b34c1e96a60f20 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6319 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4654 fix(tvix/eval): account for stack offset when pushing a `with` scopeVincent Ambo1-1/+4
Change-Id: I4b98eaea3ed5059c29938a117a9d59499a0bb95d Reviewed-on: https://cl.tvl.fyi/c/depot/+/6318 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4653 feat(tvix/eval): implement capture of self-recursive upvaluesVincent Ambo4-7/+22
With this change, it becomes possible for functions to call themselves as they are being defined in local bindings. Change-Id: Ib46a39ba17b1452b5673d96fa729d633d237241a Reviewed-on: https://cl.tvl.fyi/c/depot/+/6314 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4652 docs(tvix/eval): start a document on known optimisation potentialVincent Ambo1-0/+57
Change-Id: I9bc41e57e1cfdf536d7b9048bac2e7aff1ee2ffa Reviewed-on: https://cl.tvl.fyi/c/depot/+/6313 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-06 r/4651 refactor(tvix/eval): encapsulate internal mutability within ClosureVincent Ambo3-25/+47
This is required to efficiently construct the upvalue array at runtime, as there are situations where during Closure construction multiple things already have a reference to the closure (e.g. a self-reference). Change-Id: I35263b845fdc695dc873de489f5168d39b370f6a Reviewed-on: https://cl.tvl.fyi/c/depot/+/6312 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-05 r/4650 fix(corp/tvixbolt): make label really clickableProfpatsch1-1/+1
It looks like this was intended, but typoed. Change-Id: I830d6f0488b75b859bcf4175531c35d79cd40985 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6335 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-05 r/4649 fix(corp/tvixbolt): move output above bytecode sectionVincent Ambo1-1/+1
Most expressions people enter will probably have a fairly small result. It's useful to see *that* it did the correct thing before looking at *how* it did that. Change-Id: I50d7d4c07e41f11b71a16c00c49b9553ae9e90a5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6334 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-04 r/4648 docs(tvix/eval): pad pure column so it can fit "false"sterni1-107/+107
Change-Id: Iaedfc281db82de1e8eb2400db1118c8431d2579f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6333 Tested-by: BuildkiteCI Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-04 r/4647 docs(tvix/eval): add a list of builtins added in Nix >= 2.4sterni1-0/+11
`builtins.getFlake` doesn't interest us, of course, but some others may be worth (or easy) to implement. They are pretty low priority, though, since nixpkgs has compatiblity wrappers for the ones it uses. The new debugging-related builtins (break and traceVerbose) are interesting to note, but may not make sense to implement at all. Change-Id: Icae547aa3bd9d6ee6b87897ba8210eb9b9b044c7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6332 Tested-by: BuildkiteCI Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-04 r/4646 fix(tvix/eval): don't rebuild drv upon changes in cargo target dirsterni1-1/+4
This avoids unnecessary rebuilds of //tvix/eval when working on it locally using impure cargo. Change-Id: I028033a6345a9655e2877a534448706b8f85a1a1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6317 Tested-by: BuildkiteCI Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su>
2022-09-04 r/4645 feat(corp/tvixbolt): implement optional runtime tracingVincent Ambo1-6/+28
Uses Tvix's new `TracingObserver` to optionally produce a runtime trace, which the user can toggle via a checkbox. Runtime traces can be quite long, so they're only produced if asked for. Change-Id: Id0f27dc8ef6e9d81a31ecf22c81757b066815320 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6331 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
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