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Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
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Johannes Kirschbauer 2024-09-11 17:01:31 +02:00 committed by GitHub
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8
lib/fixed-points.nix
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@ -347,7 +347,7 @@ rec {
: Each overlay function takes two arguments, by convention `final` and `prev`, and returns an attribute set.
- `final` is the result of the fixed-point function, with all overlays applied.
- `prev` is the result of the previous overlay function.
- `prev` is the result of the previous overlay function(s).
# Type
@ -356,9 +356,9 @@ rec {
let
# final prev
# ↓ ↓
OverlayFn :: ( { ... } -> { ... } -> { ... } );
OverlayFn = { ... } -> { ... } -> { ... };
in
composeManyExtensions :: [ OverlayFn ] -> OverlayFn
composeManyExtensions :: ListOf OverlayFn -> OverlayFn
```
# Examples
@ -368,7 +368,7 @@ rec {
```nix
let
# The "original function" that is extended by the overlays.
# Note that it doesn't have prev: as argument since it can be thought of as the first function.
# Note that it doesn't have prev: as argument since no overlay function precedes it.
original = final: { a = 1; };
# Each overlay function has 'final' and 'prev' as arguments.