forked from Fediversity/Fediversity
Kiara Grouwstra
09db4d6217
lifts the `{ input output }` function wrapper out of the user interface to `function.nix`, simplifying usage.
Reviewed-on: Fediversity/Fediversity#503
58 lines
1.2 KiB
Nix
58 lines
1.2 KiB
Nix
/**
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Modular function type
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*/
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{ config, lib, ... }:
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let
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inherit (lib) mkOption types;
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inherit (types)
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submodule
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functionTo
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optionType
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;
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in
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{
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options = {
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input-type = mkOption {
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type = optionType;
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};
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output-type = mkOption {
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type = optionType;
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};
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function-type = mkOption {
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type = optionType;
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readOnly = true;
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default = functionTo config.output-type;
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};
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wrapper-type = mkOption {
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type = optionType;
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readOnly = true;
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default = functionTo (submodule {
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options = {
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input = mkOption {
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type = config.input-type;
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};
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output = mkOption {
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type = config.output-type;
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};
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};
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});
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};
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implementation = mkOption {
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type = config.function-type;
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default = _: { };
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};
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wrapper = mkOption {
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type = config.wrapper-type;
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readOnly = true;
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default = input: fn: {
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inherit input;
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output = config.implementation fn.config.input;
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};
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};
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apply = mkOption {
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type = config.function-type;
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readOnly = true;
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default = input: (config.wrapper input).output;
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};
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};
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}
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