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lib.attrsets.genAttrs': init (#436434)

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* lib.attrsets.genAttrs': init

* lib.attrsets.genAttrs: rewrite with lib.attrsets.genAttrs'

* lib.attrsets.{genAttrs,genAttrs'}: add tests

* Update lib/attrsets.nix

Co-authored-by: Johannes Kirschbauer <hsjobeki+github@gmail.com>

* Update lib/attrsets.nix

Co-authored-by: Johannes Kirschbauer <hsjobeki+github@gmail.com>

* lib.attrsets.genAttrs': document and test attrName collision

---------

Co-authored-by: Johannes Kirschbauer <hsjobeki+github@gmail.com>
This commit is contained in:
Plume
2025-09-01 17:58:28 +08:00
committed by GitHub
parent 0696dd4a7a
commit 0477b30ab6
3 changed files with 72 additions and 1 deletions
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33
lib/tests/misc.nix
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@@ -2006,6 +2006,39 @@ runTests {
# ATTRSETS
testGenAttrs = {
expr = attrsets.genAttrs [ "foo" "bar" ] (name: "x_" + name);
expected = {
foo = "x_foo";
bar = "x_bar";
};
};
testGenAttrs' = {
expr = attrsets.genAttrs' [ "foo" "bar" ] (s: nameValuePair ("x_" + s) ("y_" + s));
expected = {
x_foo = "y_foo";
x_bar = "y_bar";
};
};
testGenAttrs'Example2 = {
expr = attrsets.genAttrs' [
{
x = "foo";
y = "baz";
}
] (s: lib.nameValuePair ("x_" + s.x) ("y_" + s.y));
expected = {
x_foo = "y_baz";
};
};
testGenAttrs'ConflictingName = {
# c.f. warning of genAttrs'
expr = attrsets.genAttrs' [ "foo" "bar" "baz" ] (s: nameValuePair "foo" s);
expected = {
foo = "foo";
};
};
testConcatMapAttrs = {
expr =
concatMapAttrs