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lib.types: improve performance on attrsWith

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This commit is contained in:
Johannes Kirschbauer 2024-12-02 16:39:29 +01:00
parent e60e2e6916
commit 58c115499f
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1 changed files with 21 additions and 21 deletions
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42
lib/types.nix
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@ -597,17 +597,31 @@ rec {
# base type for lazyAttrsOf and attrsOf
attrsWith =
let
# Push down position info.
pushPositions = map (def: mapAttrs (n: v: { inherit (def) file; value = v; }) def.value);
binOp = lhs: rhs:
let
elemType = lhs.elemType.typeMerge rhs.elemType.functor;
lazy =
if lhs.lazy == rhs.lazy then
lhs.lazy
else
null;
in
if elemType == null || lazy == null then
null
else
{
inherit elemType lazy;
};
in
{
elemType,
lazy ? false,
}:
let
typeName = if lazy then "lazyAttrsOf" else "attrsOf";
# Push down position info.
pushPositions = map (def: mapAttrs (n: v: { inherit (def) file; value = v; }) def.value);
in
mkOptionType {
name = typeName;
name = if lazy then "lazyAttrsOf" else "attrsOf";
description = (if lazy then "lazy attribute set" else "attribute set") + " of ${optionDescriptionPhrase (class: class == "noun" || class == "composite") elemType}";
descriptionClass = "composite";
check = isAttrs;
@ -642,21 +656,7 @@ rec {
# Important!: Add new function attributes here in case of future changes
inherit elemType lazy;
};
binOp = lhs: rhs:
let
elemType = lhs.elemType.typeMerge rhs.elemType.functor;
lazy =
if lhs.lazy == rhs.lazy then
lhs.lazy
else
null;
in
if elemType == null || lazy == null then
null
else
{
inherit elemType lazy;
};
inherit binOp;
};
nestedTypes.elemType = elemType;
};