Storing a full BString here incurs the extra overhead of the capacity
for the inner byte-vector, which we basically never use as Nix strings
are immutable (and we don't do any mutation / sharing analysis).
Switching to a Box<BStr> cuts us from 72 bytes to 64 bytes per
string (and there are a lot of strings!)
Change-Id: I11f34c14a08fa02759f260b1c78b2a2b981714e4
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10794
Autosubmit: aspen <root@gws.fyi>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
These strings are allocated once and never changed, so they don't need
the additional overhead of a capacity given by String - instead, we can
use Box<str> and save on 16 bytes for each of these, *and* for each
Value since this is currently the largest Value variant.
Change-Id: I3e5cb070fe6c5bf82114c92d04f6bae775663a7e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10796
Autosubmit: aspen <root@gws.fyi>
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
serde_json::Value is pretty large, and is contributing (albeit not
exclusively) to the large size of the Value repr. Putting it in a box
is *especially* cheap (since it's rarely used) and allows us
to (eventually) cut down on the size of Value.
Change-Id: I005a802d8527b639beb4e938e3320b11ffa1ef23
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10795
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: aspen <root@gws.fyi>
Tested-by: BuildkiteCI
Adds a bunch (notably certain overlapping) tests for catchable situations.
This should cover many scenarios, argument is catchable, element in argument is catchable, function returns
catchable in the middle of the processing, etc.
Co-authored-by: Aspen Smith <root@gws.fyi>
Change-Id: Icd722cf8dbc91a24f45cd540a328711e5826f76c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10621
Reviewed-by: aspen <root@gws.fyi>
Tested-by: BuildkiteCI
Correctly propagate the case where the *key* of an attrset is a
Value::Catchable (eg { "${builtins.throw "c"}" = "b"; }) in
`NixAttrs::construct`, by converting the return type to
`Result<Result<Self, CatchableErrorKind>, ErrorKind>` (ugh!!) and
correctly handling that everywhere (including an `expect` in the
Deserialize impl for NixAttrs, since afaict this is impossible to hit
when deserializing from stuff like JSON).
Change-Id: Ic4bc611fbfdab27c0bd8a40759689a87c4004a17
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10786
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
In order to correctly propagate errors in the comparator passed to
builtins.sort, we need to do all the sorting in a context where we can
short-circuit return `Value`s (because catchables are Values on the `Ok`
side of the Result , not `Err`s). Unfortunately this means we have
to *inline* the List `sort_by` implementation into the builtin_sort
function - fortunately this is the only place that was called so this is
relatively low cost. This does that, and adds the requisite `try_value!`
invocation to allow us to propagate comparator errors here.
As before, this doesn't include tests, primarily since those are coming
in the next commit.
Change-Id: I8453c3aa2cd82299eae89828e2a2bb118da4cd48
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10754
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Nix doesn't propagate errors for the function argument to some builtins,
like genList and map:
❯ nix repl
Welcome to Nix version 2.3.17. Type :? for help.
nix-repl> (builtins.tryEval (builtins.genList (builtins.throw "a") 10)).success
true
nix-repl> (builtins.tryEval (builtins.map (builtins.throw "a") [ "" ])).success
true
Note that this is untested as of this particular commit, only because a
big test suite covering all sorts of catchable error propagation issues
is coming next
Change-Id: I48c8eb390a541204b1a6d438c753fa1ca9b3877e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10753
Autosubmit: aspen <root@gws.fyi>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Propagate catchables that we get from forcing thunks in builtins in a
few more places using the new try_value! macro
Change-Id: I95fd41a231f877ff153f4adbabd944372d4cc7eb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10738
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Rather than explicitly checking for Value::Catchable in all builtins,
make the #[builtin] proc macro insert this for all strict arguments by
default, with support for a #[catch] attribute on the argument to
disable this behavior. That attribute hasn't actually been *used*
anywhere here, primarily because the tests pass without it, even for
those builtins which weren't previously checking for Value::Catchable -
if some time passes without this being used I might get rid of support
for it entirely.
There's also a `try_value` macro in builtins directly for the places
where builtins were eg forcing something, then explicitly propagating a
catchable value.
Change-Id: Ie22037b9d3e305e3bdb682d105fe467bd90d53e9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10732
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
NixString is *quite* large - like 80 bytes - because of the extra
capacity value for BString and because of the context. We want to keep
Value small since we're passing it around a lot, so let's box the
NixString inside Value::String to save on some memory, and make cloning
ostensibly a little cheaper
Change-Id: I343c8b4e7f61dc3dcbbaba4382efb3b3e5bbabb2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10729
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
In the compiler, skip emitting an OpForce if the last op was an
OpConstant for a non-thunk constant. This gives a small (~1% on my
machine) perf boost, eg when evaluating hello.outPath:
❯ hyperfine \
"./before --no-warnings -E '(import <nixpkgs> {}).hello.outPath'" \
"./after --no-warnings -E '(import <nixpkgs> {}).hello.outPath'"
Benchmark 1: ./before --no-warnings -E '(import <nixpkgs> {}).hello.outPath'
Time (mean ± σ): 1.151 s ± 0.022 s [User: 1.003 s, System: 0.151 s]
Range (min … max): 1.123 s … 1.184 s 10 runs
Benchmark 2: ./after --no-warnings -E '(import <nixpkgs> {}).hello.outPath'
Time (mean ± σ): 1.140 s ± 0.022 s [User: 0.989 s, System: 0.152 s]
Range (min … max): 1.115 s … 1.175 s 10 runs
Summary
./after --no-warnings -E '(import <nixpkgs> {}).hello.outPath' ran
1.01 ± 0.03 times faster than ./before --no-warnings -E '(import <nixpkgs> {}).hello.outPath'
Change-Id: I2105fd431d4bad699087907e16c789418e9a4062
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10714
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
PathBuf internally contains a heap pointer (an OsString), so we were in
effect double-boxing here. Removing the extra layer by making
Tvix::Value represented by a Box<Path> rather than a Box<PathBuf> saves
us an indirection, while still avoiding the extra memory overhead of the
capacity which was the reason we were boxing PathBuf in the first place.
Change-Id: I8c185b9d4646161d1921917f83e87421496a3e24
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10725
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: aspen <root@gws.fyi>
Tested-by: BuildkiteCI
C++ nix uses C-style zero-terminated char pointers to represent strings
internally - however, up to this point, tvix has used Rust `String` and
`str` for string values. Since those are required to be valid utf-8, we
haven't been able to properly represent all the string values that Nix
supports.
To fix that, this change converts the internal representation of the
NixString struct from `Box<str>` to `BString`, from the `bstr` crate -
this is a wrapper around a `Vec<u8>` with extra functions for treating
that byte vector as a "morally string-like" value, which is basically
exactly what we need.
Since this changes a pretty fundamental assumption about a pretty core
type, there are a *lot* of changes in a lot of places to make this work,
but I've tried to keep the general philosophy and intent of most of the
code in most places intact. Most notably, there's nothing that's been
done to make the derivation stuff in //tvix/glue work with non-utf8
strings everywhere, instead opting to just convert to String/str when
passing things into that - there *might* be something to be done there,
but I don't know what the rules should be and I don't want to figure
them out in this change.
To deal with OS-native paths in a way that also works in WASM for
tvixbolt, this also adds a dependency on the "os_str_bytes" crate.
Fixes: b/189
Fixes: b/337
Change-Id: I5e6eb29c62f47dd91af954f5e12bfc3d186f5526
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10200
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: aspen <root@gws.fyi>
Tested-by: BuildkiteCI
Add a new --trace-runtime-timing flag (probably a better bikeshed for
this) that enables capturing the time, relative to the last event, of
each event recorded with the tracing observer.
This probably isn't *super* useful yet, but I'd like to start here in
adding new profiling tools to the VM, specifically based on the runtime
observer
Change-Id: Id7f12077291c39bf3eef42ab6744bfba53687a65
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10713
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
In case a .exp.xml file is provided alongside the test, compare its
output with the desired state.
Also, add some function .exp.xml that were presumably moved out of the
way back to src/tests/nix_tests, as they now produce the correct XML
output.
Change-Id: Ibd8123f3e6ed7bae3a44407d2284a2b2c8ce9a28
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10687
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
These need to be preserved at least for builtins.toXML.
Also, we incorrectly only wrote an <attrspat> in case ellipsis was true,
but that's not the case.
Change-Id: I6bff9c47c2922f878d5c43e48280cda9c9ddb692
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10686
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: aspen <root@gws.fyi>
At least toXML wants to get these out in a sorted fashion.
Change-Id: I6373d7488fff7c40dc2ddeeecd03ba537c92c4af
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10685
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
It's debateable on whether the serialization code should be exposed a
bit more prominently or not.
Change-Id: Iff7a28f884b1490b12b145dfdadbedacb84fd387
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10684
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: tazjin <tazjin@tvl.su>
This relies on TEST_VAR=foo being set to "foo".
Nix does this in tests/functional/lang.sh, we do it in the test suite.
Change-Id: I7ffa9ed27124530b7758aeadf07c79477656f34f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10683
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
There's no `expected_failures` feature, we run them unconditionally.
Change-Id: Ibe1c93497e040d0d5b6cbfcaa043027814c191f1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10681
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Our docs say it's still todo, but that's wrong, it landed in cl/7835
and cl/7962.
Change-Id: Ice374ae47ab653146be18c02dce27145e7488397
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10674
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: sterni <sternenseemann@systemli.org>
- Adjust to ecl 23.9.9 release
- Regenerate go protos after protoc-gen-go update
- Drop dhall fork which hasn't kept up with 1.42.*
- Address new clippy warnings:
- Variant naming of Error::ValidationError
- Simplify .try_into().unwrap()
- Drop unnecessary identity function
- Test module must be last in file
- Drop unused `pub use`
- Update agenix to 0.15.0. Current master has a installCheckPhase that
doesn't work with C++ Nix 2.3.*:
a23aa271be (commitcomment-137185861)
Change-Id: Ic29eef20d6fd1362ce1031364a5ca6b4edf195bd
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10615
Reviewed-by: aspen <root@gws.fyi>
Tested-by: BuildkiteCI
Autosubmit: sterni <sternenseemann@systemli.org>
Have a Evaluation::new() function that's used to set up the Evaluation
struct initially - which is also used by both new_pure and new_impure
internally.
It's generic over the exact type of IO, making it easier to instantiate
Evaluation with non-tvix-eval EvalIO implementations, that might not be
in a Box.
Change-Id: Ibf728da24aca59639c5b6df58d00ae98c99a63f5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10640
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Don't restrict to a Box<dyn EvalIO>.
There's still one or two places where we do restrict, this will be
solved by b/262.
Change-Id: Ic8d927d6ea81fa12d90b1e4352f35ffaafbd1adf
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10639
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
`throw (throw "a")` should work and propagate the internal throw.
Before this commit, it didn't work.
Change-Id: Id5d46f74e484dba99e912ad9fa211f3bf1617bac
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10600
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
`elem` did not catch the list being a catchable.
This surfaced during Nixpkgs evaluation.
Change-Id: Icf19b94e914e35a435c4412d769ee63ba59ab7b0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10599
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
This is an additional test suite on the top of the Nix ones
for context strings matters.
It already smoked out multiple mistakes and potential bugs and non-deterministic result from the evaluator.
It uses a similar technology as the one in the tvix-eval albeit we instantiate a fully fledged evaluator
with in-memory store.
We copy the files instead of symlinking them because crates are built in
isolation, so symlinks cannot work.
Change-Id: I63ae225ce4f83c6e2c8ccd60d779c2f8eb9d08fb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10619
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Previously, we were assembling very naively an attribute set composed of context we saw.
But it was forgetting that `"${drv}${drv.drvPath}"` would contain 2 contexts with the same key, but
with different values, one with `outputs = [ "out" ];` and `allOutputs = true;`.
Following this reasoning and comparing with what Nix does, we ought to merge underlying values systematically.
Hence, I bring `itertools` to perform a group by on the key and merge everything on the fly, it's not
beautiful but it's the best I could find, notice that I don't use
`group_by` but I talk about group by, that is, because `group_by` is a
`group_by_consecutive`, see
https://github.com/rust-itertools/itertools/issues/374.
Initially, I tried to do it without a `into_grouping_map_by`, it was akin to assemble the final `NixAttrs` directly,
it was less readable and harder to pull out because we don't have a lot of in-place mutable functions on
our data structures.
Change-Id: I9933c9bd88ffe04de50dda14f21879b60d8b8cd4
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10620
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Yes, `hasContext e` should work where `e` is a contextful strings, otherwise, it is really useless.
Change-Id: I5eb071fc257217d6e8a63fe519132ebd98186696
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10617
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
`test-generator` has not been updated in the past 2 years.
`rstest` has not been updated in the past 5 months.
This is an improvement in the maintenance state… I guess?
We get also new features, it changes the name of the tests with numbers too.
Change-Id: I5376104c7704f525dba7524da78daa09867cc669
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10623
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
We want to handle bottoms in a consistent fashion. Previously this was
handled by repetitive is_catchable checks, which were not consistently
present.
Change-Id: I9614c479cc6297d1f64efba22b620a26e2a96802
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10485
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
A bunch of operations in Tvix are not aware of catchable values
and does not propagate them.
In the meantime, as we wait for a better solution, we just offer this
commit for moving the needle.
Change-Id: Ic3f0e1550126b0847b597dfc1402c35e0eeef469
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10473
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Allow other crates (like tvix-glue) to look at a Value in JSON, which is
used by the structured attrs feature.
Change-Id: Iba02ace6e11a74c3f9b19dcbef4b008b76dec046
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10602
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
The error message is misleading. The errors we return can happen both
during serialization or deserialization, though the messages suggested
the latter only.
Change-Id: I2dafe17ec78ee75cab5937a3a81540fda3175eac
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10603
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
cl/10475 updated the API of tvix_eval::Evaluation, but didn't update
this benchmark to use that new API.
Also, fixes the docstring to no longer specify that there is a "given
snippet".
Change-Id: Ibb8285731849dbeec814e2585bbaa36f22368afe
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10542
Autosubmit: aspen <root@gws.fyi>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Nix does something like:
```cpp
NixStringContext context;
const auto str = state.forceString(*args[1], context, pos, "while evaluating the second argument passed to builtins.split");
```
And then do nothing with that context, therefore, we follow them and
make `split` aware of the context but still do nothing with it.
Change-Id: I4fee1936600ce86d99d00893ca3f64013213935b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10428
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: raitobezarius <tvl@lahfa.xyz>
This removes the reference tracking and uses instead the context for
references and returns some.
Change-Id: Ic359ca6b903b63f1a9c679c566004c617b792442
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10435
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
In the past reference tracking system, `tvix-io` glue was appending
plain paths in the known path state.
Now, we make up for this by just making contextful coercion of file
imports.
Change-Id: Ieb9b04dd83302c77909252d5f7733857ac3cf8fd
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10443
Tested-by: BuildkiteCI
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Reviewed-by: tazjin <tazjin@tvl.su>
String with contexts are always coerced to a string with the same
context.
Change-Id: I224814febd9cad196bb28876793e76bed564dc72
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10440
Tested-by: BuildkiteCI
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Reviewed-by: sterni <sternenseemann@systemli.org>
Otherwise, you just fail because they are not... contextless strings!
Change-Id: I0b8f63a18cd89c3841b613d41c12ec4ee336f953
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10442
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
`match` silently ignore the input context and do not propagate
it and successful matches.
The why is unclear but nixpkgs does rely implicitly on this behavior
because dynamic attribute selection cannot be done with contextful
strings.
Change-Id: I5167fa9b2c2db8ecab0c2fb3e9895c9cfce6eeb2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10441
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
And it also preserve the original context if it exists.
Change-Id: I904f7c13b7f003a267aace6301723780fccaafb7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10434
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: raitobezarius <tvl@lahfa.xyz>
We just perform union of contexts of every pieces.
Change-Id: Ief925c1818cd8bbec0503e9c625b0630feebfdda
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10432
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Autosubmit: raitobezarius <tvl@lahfa.xyz>
`substring` has a very funny behavior when it comes to empty strings,
it propagates the context too, this is used in nixpkgs to attach context
to strings without using any builtin: `lib.addContextFrom`.
Change-Id: Id655356799b3485f7519b3d1914c630f9d8416c3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10448
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
We make a case for adding a `reject_context` `CoercionKind` here.
It does happen during concatenation actually for path concats.
Change-Id: I0c196aad917550b9bcd0896cd2127a94f8181ffb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10444
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: raitobezarius <tvl@lahfa.xyz>
I am still undecided whether we need a CoercionKind to control
the coerced context, here's a simple attempt.
Change-Id: Ibe59d09ef26c519a6acfdfe392014446646dd6d8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10426
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Autosubmit: raitobezarius <tvl@lahfa.xyz>
And include a test to ensure we show the warning.
Change-Id: Ib6a436dbba2592b398b54e44f15a48d1aa345099
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10470
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
In the past, we had `emit_warning` be no-op and we used `push_warnings` exclusively
but as we have consumers of this function, we need it to work somewhat.
Change-Id: I78a5ece199a473dec9ef5ea1fae60b36e35137b8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10477
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Instead, it's passed in the evaluate/compile_only functions, which feels
more naturally. It lets us set up the Evaluation struct long before
we actually feed it with data to evaluate.
Now that Evaluation::new() would be accepting an empty list of
arguments, we can simply implement Default, making things a bit more
idiomatic.
Change-Id: I4369658634909a0c504fdffa18242a130daa0239
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10475
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>
By default, we don't want contextful strings and we almost always want contextless strings.
To this end, we make taking a contextful string a very explicit operation under `to_contextful_str`
and we implement manually the `to_str` cast which requires a `if !s.has_context()` guard that
the macro cannot cover.
Change-Id: I7aae8e57a7d73e547e62b1edb0b1cc7e8c0c69b6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10425
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
This prepares the data structures to implement string contexts
in Nix.
Change-Id: Idd913c9c881daeb8d446907f4b940e462e730978
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10420
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Explain why we had to take the bullet on context strings now
and move the historical approach in a historical section.
Change-Id: Ie3bcc2213b391c6ba06547cc05c850891a41d06b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10446
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
I'm still trying to work out the exact stack invariants for tvix.
We really should add assertions for them; getting the stack messed
up is no fun. This commit adds one simple assertion. It also adds
a missing stack-push (my mistake) in one place, which was uncovered
by the assertion.
Change-Id: I9d8b4bd1702d954e325832c5935b0d7e3eb68422
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10369
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
r/7176 introduced an incorrect assumption was the benefit of the
nonrecursive coercion algorithm, namely that a coercion operation always
returns a non empty string. This allows to detect whether we are
coercing a list or not by checking if the intermediate result is empty
or not. Unfortunately, coercing null and false yields an empty string,
so we need to explicitly track whether we are coercing a list.
Updated the test case to hopefully catch similar bugs in the future. I'm
not a hundred percent certain I have not introduced a new edge case with
this, so it may be interesting to add a prop test case for this to
nix_oracle down the line. At least lists are the only nested data
structures that can be serialized as nested data structures, so the
problem is kind of limited.
Change-Id: Ia41e904356f1c41a9d35e4e65ec02f2fe5a4100e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10418
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
The default behavior of string coercion in C++ Nix is to weakly coerce
and import to store if necessary. There is a flag to make it strongly
coerce (coerceMore) and a flag that controls whether path values have
the corresponding file/directory imported into the store before
returning the (store) path as a string (copyToStore). We need to
implement our equivalent to the copyToStore (import_paths) flag for the
benefit of weak coercions that don't import into the store (dirOf,
baseNameOf, readFile, ...) and strong coercions that don't import into
the store (toString).
This makes coerce_to_string as well as CoercionKind weirder and more
versatile, but prevents us from reimplementing parts of the coercion
logic constantly as can be seen in the case of baseNameOf.
Note that it is not possible to test this properly in //tvix/eval tests
due to the lack of an appropriate EvalIO implementation being available.
Tests should be added to //tvix/glue down the line.
Change-Id: I8fb8ab99c7fe08e311d2ba1c36960746bf22f566
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10361
Autosubmit: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Reviewed-by: Adam Joseph <adam@westernsemico.com>
This matches the behavior of C++ Nix more closely where the decision is
made based on the first type based to ExprConcatStrings:
1f93fa2ed2/src/libexpr/eval.cc (L1967-L2025)
Note that this doesn't make a difference in any successful
evaluation (at least to my knowledge), but ensures that our error
messages will match C++ Nix more closely, e.g. in the case of
`1 + "string"`.
Change-Id: I8059930788f9c8d98baf98e3d93d8a060ef961f2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10360
Tested-by: BuildkiteCI
Autosubmit: sterni <sternenseemann@systemli.org>
Reviewed-by: Adam Joseph <adam@westernsemico.com>
This commit fixes out builtins.length so it propagates catchables
like cppnix does.
Change-Id: I7670bec5eee1d4cd3f67a04c9a6808979fb56a8d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10315
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: Adam Joseph <adam@westernsemico.com>
Tested-by: BuildkiteCI
This commit fixes builtins.filter so it propagates catchables
correctly.
Change-Id: Ib23a383bc5e272e42052205ffd1e94649a0ebc47
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10313
Autosubmit: Adam Joseph <adam@westernsemico.com>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
This adds an unimplemented placeholder for builtins.hashString.
Change-Id: Ibc770103acf5dbc3ea7589ab5ca23fe6e07bd91a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10311
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Autosubmit: Adam Joseph <adam@westernsemico.com>
This commit fixes builtins.elemAt so it propagates catchables like
cppnix does.
Change-Id: Ieca5e128da17e78af0b14dae4a28a1ff8796e4f2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10308
Autosubmit: Adam Joseph <adam@westernsemico.com>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
This fixes our implementation of builtins.splitVersion so it
propagates catchables like cppnix does.
Change-Id: Id5d83ea76229f8c8f202aa42353cb609e67de43f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10305
Autosubmit: Adam Joseph <adam@westernsemico.com>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Currently this just `throw`s a message explaining that it is not
implemented. This is necessary in order to allow enumerating the
nixpkgs release attrset (afaict only one package uses this builtin).
Change-Id: I45266d46af579ddb5856b192b6be4b481369543c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10302
Autosubmit: Adam Joseph <adam@westernsemico.com>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
... since this may import them to the store which changes their
basename.
Fixes b/350.
Change-Id: Iabd08ff4d6a424c66d6d7784d7a96b0c078f0a91
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10298
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Autosubmit: Adam Joseph <adam@westernsemico.com>
This commit adds __curPos (to the global scope, yuck) and
builtins.filterSource. These are not implemented; forcing them will
produce the same result as `throw "message"`.
Unfortunately these two post-2.3 features are used throughout
nixpkgs. Since an unresolved indentifier is a catchable error, this
breaks the entire release eval. With this commit, it simply causes
those broken packages that use these features to appear as they are:
broken.
Change-Id: Ib43dea571f6a9fab4d54869349f80ee4ec5424c2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10297
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Autosubmit: Adam Joseph <adam@westernsemico.com>
This commit fixes our handling of `throw` within an `assert`
condition.
Fixes: b/340
Change-Id: I40a383639ec266da50a853f16216b1b7868495da
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10318
Autosubmit: Adam Joseph <adam@westernsemico.com>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
This commit fixes out `?` operator so it correctly propagates
catchables.
Change-Id: Iebaa153a8492101ee3ddd29893c98730ff331547
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10317
Autosubmit: Adam Joseph <adam@westernsemico.com>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Previously, using a catchable as either argument of OpAttrsSelect
would result in an unrecoverable error. This commit matches cppnix
behavior by propagating the catchable.
Change-Id: I4877f4068ec2b823225f185290693c101d0b9c9e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10303
Tested-by: BuildkiteCI
Autosubmit: Adam Joseph <adam@westernsemico.com>
Reviewed-by: tazjin <tazjin@tvl.su>
When attempting to call a Value, if it is a Value::Catchable we must
not cause an uncatchable failure. This commit simply reuses the
Value::Catchable as the result of attempting to call it. This is
safe because nix is designed so that nix code cannot distinguish
between different catchable failures -- they all look the same to
the interpreted code.
This fixes b/351.
Change-Id: Ibf763a08753e541843626182ff59fdbf15ea2959
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10300
Autosubmit: Adam Joseph <adam@westernsemico.com>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
