commit 5b7a21358d674be722cc0c81b9d2c04a2b710916 · pyrox.dev/nixpkgs

lib/tests/modules.sh

···

       575
        
       # nested options work

     

       576
        
       checkConfigOutput '^34$' options.nested.nestedLine34.declarationPositions.0.line ./declaration-positions.nix

     

       577
        
       

     

       0
        
       
     

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       578
        
       cat <<EOF

     

       579
        
       ====== module tests ======

     

       580
        
       $pass Pass

···

       575
        
       # nested options work

     

       576
        
       checkConfigOutput '^34$' options.nested.nestedLine34.declarationPositions.0.line ./declaration-positions.nix

     

       577
        
       

     

       578
       +
       # AttrsWith tests

     

       579
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       checkConfigOutput '^11$' config.result ./lazy-attrsWith.nix

     

       580
       +
       

     

       581
        
       cat <<EOF

     

       582
        
       ====== module tests ======

     

       583
        
       $pass Pass

+45

lib/tests/modules/lazy-attrsWith.nix

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       1
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       # Check that AttrsWith { lazy = true; } is lazy

     

       2
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       { lib, ... }:

     

       3
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       let

     

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         inherit (lib) types mkOption;

     

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       in

     

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       {

     

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         imports = [

     

       8
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           #  Module A

     

       9
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           (

     

       10
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             { ... }:

     

       11
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             {

     

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               options.mergedLazy = mkOption {

     

       13
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                 # Same as lazyAttrsOf

     

       14
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                 type = types.attrsWith {

     

       15
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                   lazy = true;

     

       16
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                   elemType = types.int;

     

       17
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                 };

     

       18
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               };

     

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             }

     

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           )

     

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           # Module B

     

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           (

     

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             { ... }:

     

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             {

     

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               options.mergedLazy = lib.mkOption {

     

       26
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                 # Same as lazyAttrsOf

     

       27
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                 type = types.attrsWith {

     

       28
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                   lazy = true;

     

       29
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                   elemType = types.int;

     

       30
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                 };

     

       31
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               };

     

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             }

     

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           )

     

       34
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           # Result

     

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           (

     

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             { config, ... }:

     

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             {

     

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               # Can only evaluate if lazy

     

       39
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               config.mergedLazy.bar = config.mergedLazy.baz + 1;

     

       40
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               config.mergedLazy.baz = 10;

     

       41
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               options.result = mkOption { default = config.mergedLazy.bar; };

     

       42
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             }

     

       43
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           )

     

       44
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         ];

     

       45
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       }

+58 -31

lib/types.nix

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       582
        
               substSubModules = m: nonEmptyListOf (elemType.substSubModules m);

     

       583
        
             };

     

       584
        
       

     

       585
       -
           attrsOf = elemType: mkOptionType rec {

     

       586
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             name = "attrsOf";

     

       587
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             description = "attribute set of ${optionDescriptionPhrase (class: class == "noun" || class == "composite") elemType}";

     

       588
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             descriptionClass = "composite";

     

       589
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             check = isAttrs;

     

       590
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             merge = loc: defs:

     

       591
       -
               mapAttrs (n: v: v.value) (filterAttrs (n: v: v ? value) (zipAttrsWith (name: defs:

     

       592
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                   (mergeDefinitions (loc ++ [name]) elemType defs).optionalValue

     

       593
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                 )

     

       594
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                 # Push down position info.

     

       595
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                 (map (def: mapAttrs (n: v: { inherit (def) file; value = v; }) def.value) defs)));

     

       596
       -
             emptyValue = { value = {}; };

     

       597
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             getSubOptions = prefix: elemType.getSubOptions (prefix ++ ["<name>"]);

     

       598
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             getSubModules = elemType.getSubModules;

     

       599
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             substSubModules = m: attrsOf (elemType.substSubModules m);

     

       600
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             functor = (defaultFunctor name) // { wrapped = elemType; };

     

       601
       -
             nestedTypes.elemType = elemType;

     

       602
       -
           };

     

       603
        
       

     

       604
        
           # A version of attrsOf that's lazy in its values at the expense of

     

       605
        
           # conditional definitions not working properly. E.g. defining a value with

     

       606
        
           # `foo.attr = mkIf false 10`, then `foo ? attr == true`, whereas with

     

       607
        
           # attrsOf it would correctly be `false`. Accessing `foo.attr` would throw an

     

       608
        
           # error that it's not defined. Use only if conditional definitions don't make sense.

     

       609
       -
           lazyAttrsOf = elemType: mkOptionType rec {

     

       610
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             name = "lazyAttrsOf";

     

       611
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             description = "lazy attribute set of ${optionDescriptionPhrase (class: class == "noun" || class == "composite") elemType}";

     

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       612
        
             descriptionClass = "composite";

     

       613
        
             check = isAttrs;

     

       614
       -
             merge = loc: defs:

     

       615
       -
               zipAttrsWith (name: defs:

     

       616
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                 let merged = mergeDefinitions (loc ++ [name]) elemType defs;

     

       617
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                 # mergedValue will trigger an appropriate error when accessed

     

       618
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                 in merged.optionalValue.value or elemType.emptyValue.value or merged.mergedValue

     

       619
       -
               )

     

       620
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               # Push down position info.

     

       621
       -
               (map (def: mapAttrs (n: v: { inherit (def) file; value = v; }) def.value) defs);

     

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       622
        
             emptyValue = { value = {}; };

     

       623
        
             getSubOptions = prefix: elemType.getSubOptions (prefix ++ ["<name>"]);

     

       624
        
             getSubModules = elemType.getSubModules;

     

       625
       -
             substSubModules = m: lazyAttrsOf (elemType.substSubModules m);

     

       626
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             functor = (defaultFunctor name) // { wrapped = elemType; };

     

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       627
        
             nestedTypes.elemType = elemType;

     

       628
        
           };

     

       629

···

       582
        
               substSubModules = m: nonEmptyListOf (elemType.substSubModules m);

     

       583
        
             };

     

       584
        
       

     

       585
       +
           attrsOf = elemType: attrsWith { inherit elemType; };

     

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       586
        
       

     

       587
        
           # A version of attrsOf that's lazy in its values at the expense of

     

       588
        
           # conditional definitions not working properly. E.g. defining a value with

     

       589
        
           # `foo.attr = mkIf false 10`, then `foo ? attr == true`, whereas with

     

       590
        
           # attrsOf it would correctly be `false`. Accessing `foo.attr` would throw an

     

       591
        
           # error that it's not defined. Use only if conditional definitions don't make sense.

     

       592
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           lazyAttrsOf = elemType: attrsWith { inherit elemType; lazy = true; };

     

       593
       +
       

     

       594
       +
           # base type for lazyAttrsOf and attrsOf

     

       595
       +
           attrsWith = {

     

       596
       +
             elemType,

     

       597
       +
             lazy ? false,

     

       598
       +
           }:

     

       599
       +
           let

     

       600
       +
             typeName = if lazy then "lazyAttrsOf" else "attrsOf";

     

       601
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             # Push down position info.

     

       602
       +
             pushPositions = map (def: mapAttrs (n: v: { inherit (def) file; value = v; }) def.value);

     

       603
       +
           in

     

       604
       +
           mkOptionType {

     

       605
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             name = typeName;

     

       606
       +
             description = (if lazy then "lazy attribute set" else "attribute set") + " of ${optionDescriptionPhrase (class: class == "noun" || class == "composite") elemType}";

     

       607
        
             descriptionClass = "composite";

     

       608
        
             check = isAttrs;

     

       609
       +
             merge = if lazy then (

     

       610
       +
               # Lazy merge Function

     

       611
       +
               loc: defs:

     

       612
       +
                 zipAttrsWith (name: defs:

     

       613
       +
                   let merged = mergeDefinitions (loc ++ [name]) elemType defs;

     

       614
       +
                   # mergedValue will trigger an appropriate error when accessed

     

       615
       +
                   in merged.optionalValue.value or elemType.emptyValue.value or merged.mergedValue

     

       616
       +
                 )

     

       617
       +
                 # Push down position info.

     

       618
       +
                 (pushPositions defs)

     

       619
       +
             ) else (

     

       620
       +
               # Non-lazy merge Function

     

       621
       +
               loc: defs:

     

       622
       +
                 mapAttrs (n: v: v.value) (filterAttrs (n: v: v ? value) (zipAttrsWith (name: defs:

     

       623
       +
                     (mergeDefinitions (loc ++ [name]) elemType (defs)).optionalValue

     

       624
       +
                   )

     

       625
       +
                 # Push down position info.

     

       626
       +
                 (pushPositions defs)))

     

       627
       +
             );

     

       628
        
             emptyValue = { value = {}; };

     

       629
        
             getSubOptions = prefix: elemType.getSubOptions (prefix ++ ["<name>"]);

     

       630
        
             getSubModules = elemType.getSubModules;

     

       631
       +
             substSubModules = m: attrsWith { elemType = elemType.substSubModules m; inherit lazy; };

     

       632
       +
             functor = defaultFunctor "attrsWith" // {

     

       633
       +
               wrapped = elemType;

     

       634
       +
               payload = {

     

       635
       +
                 # Important!: Add new function attributes here in case of future changes

     

       636
       +
                 inherit elemType lazy;

     

       637
       +
               };

     

       638
       +
               binOp = lhs: rhs:

     

       639
       +
                 let

     

       640
       +
                   elemType = lhs.elemType.typeMerge rhs.elemType.functor;

     

       641
       +
                   lazy =

     

       642
       +
                     if lhs.lazy == rhs.lazy then

     

       643
       +
                       lhs.lazy

     

       644
       +
                     else

     

       645
       +
                       null;

     

       646
       +
                 in

     

       647
       +
                 if elemType == null || lazy == null then

     

       648
       +
                   null

     

       649
       +
                 else

     

       650
       +
                   {

     

       651
       +
                     inherit elemType lazy;

     

       652
       +
                   };

     

       653
       +
             };

     

       654
        
             nestedTypes.elemType = elemType;

     

       655
        
           };

     

       656