Commit graph

15138 commits

Author SHA1 Message Date
puck e425a1d18d Import C bindings from NixOS/nix#8699
Co-authored-by: Yorick van Pelt <yorick@yorickvanpelt.nl>
Co-authored-by: José Luis Lafuente <jose.lafuente@tweag.io>
Change-Id: I48aa262d880aa75aa5b230553f663c35c283d5f6
2024-03-17 16:38:04 +00:00
puck de17a2f0fa libexpr: Lessen const bound on Value::listElems() const
I do not like this being a requirement, but it is necessary to make the
C api work with the least amount of ABI changes.

listElems() const returns a constant pointer to N constant pointers of
Value. This bound is lessened (within defined behavior) to a constant
pointer to N *mutable* pointers of Value. The upstream reasoning behind
this is reasonable enough, though I strongly distrust it.

It might be better to drop the `const` off of the C ABI instead.

Change-Id: I8e750b086c1b8d13972aa748ce8f6139f6bcbadb
2024-03-17 16:25:12 +00:00
puck 7f9e09a434 libexpr: rename parseSearchPath to SearchPath::parse
This was never called??

Change-Id: I5c1b3ce0d5479a638fda98467efb2f34faaac726
2024-03-17 16:06:00 +00:00
puck 883d2ad4d2 libexpr: use std::function rather than C function pointers for primops
In preparation for the C bindings, which use this.

Change-Id: Ic1c58998951e69e66a794976585a381754dfbbeb
2024-03-17 16:04:36 +00:00
Qyriad 7acdcf5511 meson: better match autotools cxxflags
Change-Id: I667c8685b13b7bab91e281053f807a11616ae3d4
2024-03-16 19:23:19 -06:00
Qyriad f150b3f7f8 meson: migrate generated headers to a generator() object
Change-Id: Ie7b9cab4189825e8f02dfb39d298302bc36fcb61
2024-03-15 18:55:59 -06:00
Qyriad 75f823f2e4 meson: fix libstore on linux
Change-Id: I95fef8e630575c970538d2d8ba4c91d16ae5f8ac
2024-03-15 18:55:28 -06:00
Qyriad 6fb79d08ae meson: getting the nix command building
Change-Id: If2f4a82b0d23a11a828bb4b305fabe4e30e1e91b
2024-03-15 16:44:54 -06:00
Qyriad 557dc678fd meson: we can now build libcmd!
Change-Id: I3506b3d599cd038020d208b899f81b7251932fd8
2024-03-13 21:16:03 -06:00
Qyriad f2113c2416 meson: we can now build libmain!
Change-Id: I2333a18d790df843d07163ff884c80095d89e0cc
2024-03-13 21:08:34 -06:00
Qyriad e30dac46fe meson: we can now build libexpr!
Change-Id: I937a217fdcb5bd33491cc20f04a734e9d732d5e5
2024-03-13 20:53:51 -06:00
Qyriad 1af43a19a2 meson: we can now build libfetchers!
Change-Id: Ic3a64bbc6bb1a77d01652f339f62b7f301e6e7dc
2024-03-12 21:58:53 -06:00
Qyriad e2310d7cb2 meson: we can now build libstore!
Change-Id: I615bba179ce445af42a631f3859ef46308af50e2
2024-03-12 14:05:36 -06:00
Qyriad 8c54e1ac26 meson: can now build libutil!
Change-Id: I6088a5a68637e19f85fcb4660b03ed9d1fc5f3a1
2024-03-12 07:19:52 -06:00
Qyriad bace7379b7 meson: generate a config.h that works with the current build system
Change-Id: I578982fdfc34af1f24ad0c1335dcd7bdef01fd9d
2024-03-09 20:29:51 -07:00
Qyriad a98500320e package: cleanup of all intermediaries
Change-Id: I0da5182de6b01c192cfcba407959d659d70c6dc9
2024-03-09 15:51:31 -07:00
Qyriad 5afa84342c package: migrate devShells
Change-Id: Ic63721667edd4bef79aa699a0de8411639e5159b
2024-03-09 15:51:27 -07:00
Qyriad 2fe0b373e9 package: migrate internal-api-docs
Change-Id: I344d73a412c2c6e4bb2eb14bd4859056324f1ba7
2024-03-09 15:51:24 -07:00
Qyriad e14b56943d package: migrate testNixVersions
Change-Id: I71845f8a6d7b77c3617d055e726ed4a28cd05fa3
2024-03-09 15:51:20 -07:00
Qyriad 1b8f5bb870 package: use pname, version, and doBuild (first change with diff hash)
The src fileset, preConfigure, and separateDebugInfo also respond to doBuild if its overridden

This commit is logically just a continuation of the previous commit's
refactor, but exists separately to delineate when the core Nix
derivation hash changed (this commit).

Change-Id: I67a61bc9608d91b6a833ebc5c3894b2d2e694050
2024-03-09 15:51:16 -07:00
Qyriad f8efdea4a2 package: refactor Nix out of flake.nix and into package.nix
This series takes a somewhat different approach from the flake rework
done in NixOS/nix. The package.nix here does not provide callPackage
options for all the various settings in the build, and instead the other
places Nix derivations are used (like internal-api-docs) will .overrideAttrs
the normal Nix package derivation. This more closely matches how these
things were structured originally, and results in less churn and more
atomicity in these changes.

In the future, package.nix likely will migrate to have more build
options in the callPackage arguments, but we are also planning to
rewrite the build system anyway.

Change-Id: I170c4e5a4184bab62e1fd75e56db876d4ff116cf
2024-03-09 15:48:16 -07:00
eldritch horrors b221a14f0a Merge pull request #9925 from 9999years/fmt-cleanup
Cleanup `fmt.hh`

(cherry picked from commit 47a1dbb4b8e7913cbb9b4d604728b912e76e4ca0)
Change-Id: Id076a45cb39652f437fe3f8bda10c310a9894777
2024-03-09 07:00:13 -07:00
eldritch horrors 3d9c7fc1e7 Add comment
(cherry picked from commit 9723f533d85133fa3c4d9421a58c7765cb61e733)
Change-Id: Idd729febc0bb8c7c8db72a0fae73b680f66767f4
2024-03-09 04:47:05 -07:00
eldritch horrors f536696b73 Add comments
(cherry picked from commit 474fc4078acbe062fcc31ce91c69c8f33bf00d5f)
Change-Id: I9f78f7afd8468d0ab676c0f60c4f7d6140128583
2024-03-09 04:47:05 -07:00
eldritch horrors f27a27f49e Remove EXCEPTION_NEEDS_THROW_SPEC
We're on C++ 20 now, we don't need this

(cherry picked from commit faaccecbc82d98288582bdc8ca96991796561371)
Change-Id: I172fa336107fd18b1aac2262309682e0d7065d07
2024-03-09 04:47:05 -07:00
eldritch horrors 7eb15e13aa Attach positions to errors in derivationStrict
(cherry picked from commit 87dc4bc7d139a7eccb257e71558314a0d99e8d6a)
Change-Id: Ib7509cbb1d246ca5aa3607ff860420fe7a754f6a
2024-03-09 04:47:05 -07:00
eldritch horrors 08252967a8 libexpr: Support structured error classes
While preparing PRs like #9753, I've had to change error messages in
dozens of code paths. It would be nice if instead of

    EvalError("expected 'boolean' but found '%1%'", showType(v))

we could write

    TypeError(v, "boolean")

or similar. Then, changing the error message could be a mechanical
refactor with the compiler pointing out places the constructor needs to
be changed, rather than the error-prone process of grepping through the
codebase. Structured errors would also help prevent the "same" error
from having multiple slightly different messages, and could be a first
step towards error codes / an error index.

This PR reworks the exception infrastructure in `libexpr` to
support exception types with different constructor signatures than
`BaseError`. Actually refactoring the exceptions to use structured data
will come in a future PR (this one is big enough already, as it has to
touch every exception in `libexpr`).

The core design is in `eval-error.hh`. Generally, errors like this:

    state.error("'%s' is not a string", getAttrPathStr())
      .debugThrow<TypeError>()

are transformed like this:

    state.error<TypeError>("'%s' is not a string", getAttrPathStr())
      .debugThrow()

The type annotation has moved from `ErrorBuilder::debugThrow` to
`EvalState::error`.

(cherry picked from commit c6a89c1a1659b31694c0fbcd21d78a6dd521c732)
Change-Id: Iced91ba4e00ca9e801518071fb43798936cbd05a
2024-03-09 04:47:05 -07:00
eldritch horrors d4c738fe4c Move PodIdx to pos-idx.hh and PosTable to pos-table.hh
(cherry picked from commit c62c21e29af20f1c14a59ab37d7a25dd0b70f69e)
Change-Id: Id4ea2fc33b0874b2f1f2a32cabcbeb0afa26808f
2024-03-09 04:47:05 -07:00
eldritch horrors 7673312ccc Merge pull request #9928 from 9999years/error-messages-in-nix-repl
Improve error printing in `nix repl`

(cherry picked from commit a8050d9b83052e4b5c52bf2d116381aedec3a93e)
Change-Id: I588f92d1dd4c546c98788b71403cc034f5e7129a
2024-03-09 03:37:35 -07:00
eldritch horrors c864923928 Merge pull request #9929 from 9999years/dont-print-values-in-magenta
Don't print the first bracket in values in magenta in error messages

(cherry picked from commit 46a0625a40aef6946a35f92fdacf0e6b4a14414f)
Change-Id: I8435565c87db182116140eaeea9df1243e67ea94
2024-03-09 03:37:35 -07:00
eldritch horrors 3e1be9c530 Merge pull request #9917 from 9999years/enter-debugger-more-reliably
Enter debugger more reliably in `let` expressions and function calls

(cherry picked from commit c4ed92fa6f836d3d8eb354a48c37a2f9eeecc3aa)
Change-Id: I16d0cad7e898feecd2399723b92ba8df67222fb4
2024-03-09 03:37:35 -07:00
eldritch horrors 3796811571 Merge pull request #9927 from 9999years/catch-error-in-value-printer
Catch `Error`, not `BaseError` in `ValuePrinter`

BaseError includes Interrupt. We probably don't want the value printer to tell you Ctrl-C was pressed while it was printing.

(cherry picked from commit c291d2d8dda38aa88b004e2ed05b28653c07e342)
Change-Id: I70b105bfb2f52a8f345ae0281d12f022aa36b14e
2024-03-09 03:37:35 -07:00
eldritch horrors b6b31d255a Merge pull request #9926 from 9999years/fix-cycle-detection-in-nix-repl
Fix cycle detection in `nix repl`

(cherry picked from commit e190c20c3394fd1a5cd9be1afc3f30ab32dcd36b)
Change-Id: Ie385e781b9f0b7171ca653bcd53a990bb41f9e4b
2024-03-09 03:37:35 -07:00
eldritch horrors 1bb8fe48a2 Minor formatting tweaks
(cherry picked from commit 365b831e6f290c733da6879dae871dada343a1eb)
Change-Id: Ife3d269d2f87d6e3fe8a348995019dfc08ac75eb
2024-03-09 00:25:54 -07:00
eldritch horrors 0cf06c5ab5 Update src/libexpr/eval.cc
Co-authored-by: John Ericson <git@JohnEricson.me>
(cherry picked from commit 80b84710b8c676620ed1e8bf8ff3bb1d5bc19b80)
Change-Id: I128555f1ae13cf0e202f565ee439f698efe12431
2024-03-09 00:25:54 -07:00
eldritch horrors f7b2476415 don't repeatedly look up ast internal symbols
these symbols are used a *lot*, so it makes sense to cache them. this
mostly increases clarity of the code (however clear one may wish to call
the parser desugaring here), but it also provides a small performance
benefit.

(cherry picked from commit 09a1128d9e2ff0ae6176784938047350d6f8a782)
Change-Id: I73d9f66be4555168e048cb2d542277251580c2d1
2024-03-09 00:25:54 -07:00
eldritch horrors 92693973b6 decouple parser and EvalState
there's no reason the parser itself should be doing semantic analysis
like bindVars. split this bit apart (retaining the previous name in
EvalState) and have the parser really do *only* parsing, decoupled from
EvalState.

(cherry picked from commit b596cc9e7960b9256bcd557334d81e9d555be5a2)
Change-Id: I481a7623afc783e9d28a6eb4627552cf8a780986
2024-03-09 00:25:54 -07:00
eldritch horrors faaae9d045 slim down parser.y
most EvalState and Expr members defined here could be elsewhere, where
they'd be easier to maintain (not being embedded in a file with arcane
syntax) and *somewhat* more faithfully placed according to the path of
the file they're defined in.

(cherry picked from commit e1aa585964c3d864ebff0030584f3349a539d615)
Change-Id: Ibc704567462bb40f37cda05d8fadd465519db5f5
2024-03-09 00:25:54 -07:00
eldritch horrors f9f8664879 rename ParserState::{makeCurPos -> at}
most instances of this being used do not refer to the "current"
position, sometimes not even to one reasonably close by. it could also
be called `makePos` instead, but `at` seems clear in context.

(cherry picked from commit 835a6c7bcfd0b22acc16f31de5fc7bb650d52017)
Change-Id: I17cab8a6cc14cac5b64624431957bfcf04140809
2024-03-09 00:25:54 -07:00
eldritch horrors e1cd0077f3 move ParseData to own header, rename to ParserState
ParserState better describes what this struct really is. the parser
really does modify its state (most notably position and symbol tables),
so calling it that rather than obliquely "data" (which implies being
input only) makes sense.

(cherry picked from commit 007605616477f4f0d8a0064c375b1d3cf6188ac5)
Change-Id: I92feaec796530e1d4d0f7d4fba924229591cea95
2024-03-09 00:25:54 -07:00
eldritch horrors 60e3a05175 make parser utility functions members of ParseData
all of them need access to parser state in some way. make them members
to allow this without fussing so much.

(cherry picked from commit 1b09b80afac27c67157d4b315c237fa7bb9b8d08)
Change-Id: I3145c95666a5617b735eff7cb403c54c0fe86347
2024-03-09 00:25:54 -07:00
eldritch horrors ba16d99124 simplify parse error reporting
since nix doesn't use the bison `error` terminal anywhere any invocation
of yyerror will immediately cause a failure. since we're *already*
leaking tons of memory whatever little bit bison allocates internally
doesn't much matter any more, and we'll be replacing the parser soon anyway.

coincidentally this now also matches the error behavior of URIs when
they are disabled or ~/ paths in pure eval mode, duplicate attr
detection etc.

(cherry picked from commit e8d9de967fe47a7f9324b0022a2ef50df59f419d)
Change-Id: I560c50d11dceddc2d7cf9ed2c6c631a309ce574e
2024-03-09 00:25:54 -07:00
eldritch horrors 2cea973e29 remove ParserFormals
this is a proper subset of Formals anyway, so let's just use those and
avoid the extra allocations and moves.

(cherry picked from commit f07388bf985c2440413f398cf93d5f5840d1ec8c)
Change-Id: I4508c9c9c918cbaaed649dc753eb86f5cafc7ab6
2024-03-09 00:25:54 -07:00
eldritch horrors 609a8e0d94 Merge pull request #9754 from 9999years/print-value-when-coercion-fails
Print the value in `error: cannot coerce` messages

(cherry picked from commit 5b7bfd2d6b89d7dd5f54c1ca6c8072358d31a84e)

===

test taken from 6e8d5983143ae576e3f4b1d2954a5267f2943a49; it was added
previously (and not backported because its pr was a mostly-revert), but
it's useful to have around.

Change-Id: Icbd14b55e3610ce7b774667bf14b82e6dc717982
2024-03-09 00:05:41 -07:00
eldritch horrors 2f7c3fa251 Merge pull request #9818 from Ma27/print-value-on-function-call-type-error
libexpr: print value of what is attempted to be called as function
(cherry picked from commit 50e5d7b883042852538371237e32a66bb22f0485)
Change-Id: I7cb6290bd8f244e83bfce3b2eed2a4c8b4f16a83
2024-03-09 00:05:41 -07:00
eldritch horrors 87e6ac5eb7 Merge pull request #9753 from 9999years/print-value-on-type-error
Print the value in `value is X while a Y is expected` error

(cherry picked from commit 5f72a97092da6af28a7d2b2a50d74e9d34fae7e1)
Change-Id: Idb4bc903ae59a0f5b6fb3b1da4d47970fe0a6efe
2024-03-09 00:05:41 -07:00
eldritch horrors 896e525681 Disable bear on all the things with darwin as hostPlatform
Just `stdenv.isDarwin` isn't enough because it doesn't apply to the
build platform, which mean that cross packages building from darwin to
another platform will have `isDarwin` set to false.
Replace it by `stdenv.buildPlatform.isDarwin`.

(cherry picked from commit a0cb75d96f76a3be48b9319e26d8ad78ef4e4525)

(h/t jade for finding this one)
Change-Id: If3cb74e6feaa5d51de550d9a140c71683c2214cd
2024-03-09 00:03:50 -07:00
eldritch horrors 7e1f8b09a4 Merge pull request #9755 from 9999years/printer-followup
Printer followup

(cherry picked from commit 51f524c629b778b75cb62a9e0c85bae655984abc)
Change-Id: I29214cc86c5e846cbcfec382022293a70011b316
2024-03-09 04:04:46 +01:00
eldritch horrors 512c1f05c3 Unify and refactor value printing
Previously, there were two mostly-identical value printers -- one in
`libexpr/eval.cc` (which didn't force values) and one in
`libcmd/repl.cc` (which did force values and also printed ANSI color
codes).

This PR unifies both of these printers into `print.cc` and provides a
`PrintOptions` struct for controlling the output, which allows for
toggling whether values are forced, whether repeated values are tracked,
and whether ANSI color codes are displayed.

Additionally, `PrintOptions` allows tuning the maximum number of
attributes, list items, and bytes in a string that will be displayed;
this makes it ideal for contexts where printing too much output (e.g.
all of Nixpkgs) is distracting. (As requested by @roberth in
https://github.com/NixOS/nix/pull/9554#issuecomment-1845095735)

Please read the tests for example output.

Future work:
- It would be nice to provide this function as a builtin, perhaps
  `builtins.toStringDebug` -- a printing function that never fails would
  be useful when debugging Nix code.
- It would be nice to support customizing `PrintOptions` members on the
  command line, e.g. `--option to-string-max-attrs 1000`.

(cherry picked from commit 0fa08b451682fb3311fe58112ff05c4fe5bee3a4, )

===

Restore ambiguous value printer for `nix-instantiate`

The Nix team has requested that this output format remain unchanged.
I've added a warning to the man page explaining that `nix-instantiate
--eval` output will not parse correctly in many situations.

(cherry picked from commit df84dd4d8dd3fd6381ac2ca3064432ab31a16b79)

Change-Id: I7cca6b4b53cd0642f2d49af657d5676a8554c9f8
2024-03-09 03:50:06 +01:00
eldritch horrors 0e8f505f66 Unindent print.hh declarations
(cherry picked from commit c9125603a535f82cc9a53f47533f0a3d174e7008)
Change-Id: I137a272feee7eb42a017f373cbe4705b0e79b7c1
2024-03-08 18:54:10 -07:00