Johannes Kirschbauer
56b5634a90
doc: manual fixup after migration
2024-03-19 22:01:38 +01:00
Johannes Kirschbauer
f917ed536b
doc: migrate lib.attrsets to use doc-comments
2024-03-15 17:18:35 +01:00
Silvan Mosberger
012faf046f
Merge pull request #292941 from adisbladis/lib-getattrfrompath-env
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lib.getAttrFromPath: Don't use errorMessage variable
2024-03-06 19:41:34 +01:00
Silvan Mosberger
2dc95cded0
Merge pull request #292938 from adisbladis/mapattrsrecursivecond-env
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lib.mapAttrsRecursiveCond: Eliminate intermediate one intermediate variable environment
2024-03-06 19:40:52 +01:00
Silvan Mosberger
b180a6af30
Merge pull request #292937 from adisbladis/zipattrs-env
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lib.zipAttrs: Remove needless function wrapping
2024-03-06 19:39:48 +01:00
Silvan Mosberger
0d49917ded
Merge pull request #292934 from adisbladis/lib-choosedevoutput
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lib.chooseDevOutputs: Remove needless function wrapping
2024-03-06 19:39:30 +01:00
Valentin Gagarin
73c0b48dd6
doc: add details on mapAttrsRecursive[Cond] ( #293509 )
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* doc: add details on `mapAttrsRecursive[Cond]`
from first reading it wasn't clear that `f` also takes the current
attribute path. also the value f receives is tricky due to how the
condition is evaluated.
Co-authored-by: Daniel Sidhion <DanielSidhion@users.noreply.github.com>
2024-03-06 10:21:23 +01:00
adisbladis
948e5b841d
lib.getAttrFromPath: Don't use errorMessage variable
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We can just pass the error message on without creating an environment.
2024-03-03 16:30:00 +13:00
adisbladis
34fefe4e16
lib.mapAttrsRecursiveCond: Eliminate intermediate one intermediate variable environment
2024-03-03 16:18:38 +13:00
adisbladis
4338bfde09
lib.zipAttrs: Remove needless function wrapping
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Returning the partially applied `zipAttrsWith fn` is the same as `sets: zipAttrsWith fn sets`.
2024-03-03 16:17:49 +13:00
adisbladis
3ee9d185f3
lib.chooseDevOutputs: Remove needless function wrapping
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Returning the partially applied `map getDev` is the same as `drvs: map getDev drvs`.
2024-03-03 16:03:01 +13:00
Silvan Mosberger
31d23ba418
lib.attrsets: Remove unneeded polyfills
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Nix 2.3 (the minimum version needed to evaluate Nixpkgs) supports these, so no need to keep them around.
2024-02-09 05:46:03 +01:00
Alois Wohlschlager
d33127863e
lib: make deprecation warnings consistent
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The deprecation warnings in lib were wildly inconsistent. Different
formulations were used in different places for the same meaning. Some warnings
used builtins.trace instead of lib.warn, which prevents silencing; one even
only had a comment instead. Make everything more uniform.
2024-02-03 19:01:39 +01:00
Robert Hensing
a7aa95db53
lib/attrsets: Document and link Nix language operators
2023-12-13 18:38:41 +01:00
Robert Hensing
7d993b9521
lib.attrsets.hasAttrByPath: Document law and laziness, and test it
2023-12-08 23:19:09 +01:00
Robert Hensing
72bd4bbb58
lib.attrsets.longestValidPathPrefix: init
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Allows finding the most specific path that exists.
This is useful for error messages relating to attribute paths.
2023-12-08 23:15:13 +01:00
Robert Hensing
51357572f2
Merge pull request #269552 from adisbladis/lib-matchattrs-list-allocs
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lib.attrsets.matchAttrs: Avoid some list allocations when walking structure
2023-11-27 14:44:37 +01:00
adisbladis
544a1d375b
lib.attrsets.attrByPath: Don't allocate one extra list per lookup recursion
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Using `tail` in a recursive loop like this needlessly allocates.
This changes the loop to look up by list index instead.
2023-11-27 11:37:57 +13:00
adisbladis
7e07b3ecd5
lib.attrsets.hasAttrByPath: Don't allocate one extra list per lookup recursion
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Using `tail` in a recursive loop like this needlessly allocates.
This changes the loop to look up by list index instead.
2023-11-27 11:37:56 +13:00
adisbladis
013a0a1357
lib.attrsets.matchAttrs: Avoid some list allocations when walking structure
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Benchmarks (`nix-instantiate ./. -A python3`):
- Before:
``` json
{
"cpuTime": 0.29049500823020935,
"envs": {
"bytes": 4484216,
"elements": 221443,
"number": 169542
},
"gc": {
"heapSize": 402915328,
"totalBytes": 53086800
},
"list": {
"bytes": 749424,
"concats": 4242,
"elements": 93678
},
"nrAvoided": 253991,
"nrFunctionCalls": 149848,
"nrLookups": 49612,
"nrOpUpdateValuesCopied": 1587837,
"nrOpUpdates": 10104,
"nrPrimOpCalls": 130356,
"nrThunks": 358981,
"sets": {
"bytes": 30423600,
"elements": 1859999,
"number": 41476
},
"sizes": {
"Attr": 16,
"Bindings": 16,
"Env": 16,
"Value": 24
},
"symbols": {
"bytes": 236145,
"number": 24453
},
"values": {
"bytes": 10502520,
"number": 437605
}
}
```
- After:
``` json
{
"cpuTime": 0.2946169972419739,
"envs": {
"bytes": 3315224,
"elements": 172735,
"number": 120834
},
"gc": {
"heapSize": 402915328,
"totalBytes": 48718432
},
"list": {
"bytes": 347568,
"concats": 4242,
"elements": 43446
},
"nrAvoided": 173252,
"nrFunctionCalls": 101140,
"nrLookups": 73595,
"nrOpUpdateValuesCopied": 1587837,
"nrOpUpdates": 10104,
"nrPrimOpCalls": 83067,
"nrThunks": 304216,
"sets": {
"bytes": 29704096,
"elements": 1831673
2023-11-27 11:20:50 +13:00
Silvan Mosberger
055ba65fed
lib: Take advantage of section descriptions
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See https://github.com/nix-community/nixdoc/releases/tag/v2.6.0
2023-11-20 03:02:11 +01:00
Silvan Mosberger
5323fbf703
Merge pull request #254452 from flyingcircusio/lib-attrsToList
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lib.attrsets.attrsToList: add function
2023-10-10 19:49:17 +02:00
Oliver Schmidt
d70633f91c
lib.attrsets.attrsToList: add function
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For transforming back between lists and attrsets, it makes sense to have
a quasi-inverse of `builtins.listToAttrs` available as a library
function.
Co-authored-by: Silvan Mosberger <github@infinisil.com>
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-10-10 16:11:01 +02:00
Silvan Mosberger
dd72ff27f7
lib.attrsets.foldlAttrs: Make stricter
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See the parent commit for the same change to lib.lists.foldl'
2023-09-27 02:43:59 +02:00
Silvan Mosberger
3b6169f87b
lib.lists.foldl': Make strict in the initial accumulator
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To maintain backwards compatibility, this can't be changed in the Nix language.
We can however ensure that the version Nixpkgs has the more intuitive behavior.
2023-09-27 02:43:59 +02:00
Silvan Mosberger
fa503f4b92
lib.attrsets.mergeAttrsList: init
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Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-07-18 20:27:15 +02:00
figsoda
12e01c677c
lib/attrsets: remove unused let bindings
2023-06-23 09:41:04 +00:00
Robert Hensing
5319ddf7dc
lib.concatMapAttrs: Simplify stack trace
2023-05-31 14:57:37 +02:00
zimbatm
ad0b21fbbc
lib: add missing removeAttrs builtin
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I'm expecting all the builtins.* functions to be available in lib.*
2023-04-19 21:27:38 +02:00
hsjobeki
15a8d05ba5
init: lib.foldlAttrs
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- provide comprehensive example
- add unit test
2023-03-11 10:42:00 +01:00
Colin Arnott
6ff66fcbd7
lib: standardise attrset type syntax
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There are a number of different syntaxes used for attrset type
signatures in our doc strings, this change standardises upon one that
uses :: for specifying attribute type, and ; terminators to be
consistent with nix syntax. There are no bugs in the functions
themselves, just that different syntaxes may confuse new users.
2023-01-30 23:53:44 +00:00
Adam Joseph
a4e3e16258
Update lib/attrsets.nix
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Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-01-25 02:52:54 +00:00
Adam Joseph
ee00af7a32
attrsets: clarify that mapAttrs maps over *leaf* attrs
2023-01-22 15:19:09 -08:00
YoshiRulz
7fba83890c
lib: Fix mismatched quotes in lib.* doc comments
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caused problems for automated rich text generation such as
https://teu5us.github.io/nix-lib.html#customisation-functions
2023-01-02 08:25:17 +10:00
hsjobeki
5ff21bfc73
attrsets: fix and add some doc types
2022-12-24 14:08:11 +01:00
figsoda
695d4bc76b
lib: fix typos
2022-12-17 18:59:29 -05:00
Ryan Mulligan
ac1ae0a58e
doc: auto-generate asserts and attrset library docs
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If all the docs are auto-generated, it should be easier to convert
them to Commonmark.
Co-Authored-By: Valentin Gagarin <valentin.gagarin@tweag.io>
Co-Authored-By: Silvan Mosberger <contact@infinisil.com>
2022-12-08 22:58:22 +01:00
figsoda
f993f8a186
lib/attrsets: add concatMapAttrs
2022-11-17 10:41:53 -05:00
figsoda
4536ebad69
lib/attrsets: simplify chooseDevOutputs
2022-11-17 09:41:47 -05:00
Adam Joseph
037cf2fad1
unionOfDisjoint: use builtins.intersectAttrs
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This brings two benefits:
1. The complete list of collisions is printed in the whenever any colliding
attribute is accessed.
2. The sets are intersected using a C++ primitive, which runs in O(n) time
(intersecting pre-sorted lists) with small constants rather than interpreted
Nix code.
Thanks to @toonn for prompting this improvement.
2022-09-25 00:09:15 -07:00
Adam Joseph
99da193877
note that unionOfDisjoint is commutative, unlike //
2022-09-12 12:59:16 -07:00
Adam Joseph
47de66b1a4
lib/attrsets.nix: add unionOfDisjoint
2022-09-12 12:53:31 -07:00
Robert Hensing
4d2237c841
lib.foldAttrs: Clarify example
2022-05-10 07:01:00 +02:00
Robert Hensing
5ff918bf55
Merge pull request #147077 from Infinisil/updateAttrPaths
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Introduce `lib.updateManyAttrsByPath`
2022-03-19 19:00:03 +01:00
Silvan Mosberger
85003ecdbb
lib.attrsets: Introduce updateManyAttrsByPath
2022-03-18 00:08:29 +01:00
Silvan Mosberger
71b130c581
lib.attrsets: Introduce showAttrPath
2022-03-18 00:05:08 +01:00
Robert Hensing
3ddac7a41a
lib.isDerivation: Simplify
2022-03-09 15:48:30 +01:00
John Rinehart
5688e7ff35
fix: typo in lib/attrsets.nix
2022-02-10 01:16:20 +02:00
pennae
6d44bc5b90
Merge pull request #152392 from polykernel/attrset-optimizations-patch-1
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lib/attrset: various function optimizations
2022-01-11 16:01:52 +00:00
polykernel
63ce7d3184
lib/attrset: miscellaneous optimizations
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- Eta reduce `mapAttrsRecursiveCond`, `foldAttrs`, `getAttrFromPath`.
- Modify `matchAttrs` to use `elemAt` instead of `head (tail xs)` to access
elements.
- Modify `matchAttrs` to use `any id` instead of `foldr and true`.
2021-12-27 22:24:28 -05:00
