attrsets: fix and add some doc types
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hsjobeki
parent
d9c3fbfcdc
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5ff21bfc73
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@ -16,6 +16,8 @@ rec {
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Example:
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x = { a = { b = 3; }; }
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# ["a" "b"] is equivalent to x.a.b
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# 6 is a default value to return if the path does not exist in attrset
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attrByPath ["a" "b"] 6 x
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=> 3
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attrByPath ["z" "z"] 6 x
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@ -23,6 +25,7 @@ rec {
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Type:
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attrByPath :: [String] -> Any -> AttrSet -> Any
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*/
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attrByPath =
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# A list of strings representing the attribute path to return from `set`
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@ -96,7 +99,7 @@ rec {
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=> error: cannot find attribute `z.z'
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Type:
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getAttrFromPath :: [String] -> AttrSet -> Value
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getAttrFromPath :: [String] -> AttrSet -> Any
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*/
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getAttrFromPath =
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# A list of strings representing the attribute path to get from `set`
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@ -109,10 +112,7 @@ rec {
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/* Map each attribute in the given set and merge them into a new attribute set.
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Type:
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concatMapAttrs ::
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(String -> a -> AttrSet)
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-> AttrSet
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-> AttrSet
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concatMapAttrs :: (String -> a -> AttrSet) -> AttrSet -> AttrSet
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Example:
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concatMapAttrs
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@ -168,8 +168,7 @@ rec {
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] { a.b.c = 0; }
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=> { a = { b = { d = 1; }; }; x = { y = "xy"; }; }
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Type:
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updateManyAttrsByPath :: [AttrSet] -> AttrSet -> AttrSet
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Type: updateManyAttrsByPath :: [{ path :: [String], update :: (Any -> Any) }] -> AttrSet -> AttrSet
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*/
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updateManyAttrsByPath = let
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# When recursing into attributes, instead of updating the `path` of each
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@ -252,6 +251,7 @@ rec {
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Example:
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attrValues {c = 3; a = 1; b = 2;}
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=> [1 2 3]
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Type:
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attrValues :: AttrSet -> [Any]
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*/
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@ -341,6 +341,7 @@ rec {
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Type:
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foldAttrs :: (Any -> Any -> Any) -> Any -> [AttrSets] -> Any
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*/
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foldAttrs =
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# A function, given a value and a collector combines the two.
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@ -394,7 +395,7 @@ rec {
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{ a = 2; b = 20; }
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]
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Type:
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cartesianProductOfSets :: AttrSet -> [AttrSet]
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cartesianProductOfSets :: AttrSet -> [AttrSet]
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*/
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cartesianProductOfSets =
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# Attribute set with attributes that are lists of values
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@ -413,7 +414,7 @@ rec {
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=> { name = "some"; value = 6; }
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Type:
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nameValuePair :: String -> Any -> AttrSet
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nameValuePair :: String -> Any -> { name :: String, value :: Any }
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*/
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nameValuePair =
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# Attribute name
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@ -600,7 +601,7 @@ rec {
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=> { }
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Type:
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optionalAttrs :: Bool -> AttrSet
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optionalAttrs :: Bool -> AttrSet -> AttrSet
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*/
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optionalAttrs =
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# Condition under which the `as` attribute set is returned.
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@ -646,7 +647,7 @@ rec {
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=> { a = ["x" "y"]; b = ["z"] }
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Type:
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zipAttrsWith :: (String -> [ Any ] -> Any) -> [ AttrSet ] -> AttrSet
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zipAttrsWith :: (String -> [ Any ] -> Any) -> [ AttrSet ] -> AttrSet
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*/
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zipAttrsWith =
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builtins.zipAttrsWith or (f: sets: zipAttrsWithNames (concatMap attrNames sets) f sets);
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@ -737,7 +738,7 @@ rec {
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}
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Type:
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recursiveUpdate :: AttrSet -> AttrSet -> AttrSet
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recursiveUpdate :: AttrSet -> AttrSet -> AttrSet
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*/
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recursiveUpdate =
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# Left attribute set of the merge.
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@ -795,6 +796,7 @@ rec {
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/* Turns a list of strings into a human-readable description of those
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strings represented as an attribute path. The result of this function is
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not intended to be machine-readable.
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Create a new attribute set with `value` set at the nested attribute location specified in `attrPath`.
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Example:
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showAttrPath [ "foo" "10" "bar" ]
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@ -831,11 +833,11 @@ rec {
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If the output does not exist, fallback to `.out` and then to the default.
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Example:
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getOutput pkgs.openssl
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getBin pkgs.openssl
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=> "/nix/store/9rz8gxhzf8sw4kf2j2f1grr49w8zx5vj-openssl-1.0.1r"
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Type:
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getOutput :: Derivation -> String
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getBin :: Derivation -> String
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*/
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getBin = getOutput "bin";
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@ -844,11 +846,11 @@ rec {
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If the output does not exist, fallback to `.out` and then to the default.
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Example:
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getOutput pkgs.openssl
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getLib pkgs.openssl
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=> "/nix/store/9rz8gxhzf8sw4kf2j2f1grr49w8zx5vj-openssl-1.0.1r-lib"
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Type:
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getOutput :: Derivation -> String
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getLib :: Derivation -> String
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*/
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getLib = getOutput "lib";
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@ -857,11 +859,11 @@ rec {
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If the output does not exist, fallback to `.out` and then to the default.
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Example:
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getOutput pkgs.openssl
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getDev pkgs.openssl
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=> "/nix/store/9rz8gxhzf8sw4kf2j2f1grr49w8zx5vj-openssl-1.0.1r-dev"
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Type:
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getOutput :: Derivation -> String
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getDev :: Derivation -> String
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*/
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getDev = getOutput "dev";
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@ -870,15 +872,19 @@ rec {
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If the output does not exist, fallback to `.out` and then to the default.
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Example:
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getOutput pkgs.openssl
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getMan pkgs.openssl
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=> "/nix/store/9rz8gxhzf8sw4kf2j2f1grr49w8zx5vj-openssl-1.0.1r-man"
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Type:
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getOutput :: Derivation -> String
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getMan :: Derivation -> String
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*/
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getMan = getOutput "man";
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/* Pick the outputs of packages to place in `buildInputs` */
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/* Pick the outputs of packages to place in `buildInputs`
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Type: chooseDevOutputs :: [Derivation] -> [String]
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*/
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chooseDevOutputs =
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# List of packages to pick `dev` outputs from
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drvs:
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@ -900,6 +906,7 @@ rec {
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Type:
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recurseIntoAttrs :: AttrSet -> AttrSet
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*/
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recurseIntoAttrs =
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# An attribute set to scan for derivations.
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@ -909,7 +916,7 @@ rec {
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/* Undo the effect of recurseIntoAttrs.
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Type:
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recurseIntoAttrs :: AttrSet -> AttrSet
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dontRecurseIntoAttrs :: AttrSet -> AttrSet
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*/
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dontRecurseIntoAttrs =
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# An attribute set to not scan for derivations.
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@ -919,7 +926,10 @@ rec {
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/* `unionOfDisjoint x y` is equal to `x // y // z` where the
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attrnames in `z` are the intersection of the attrnames in `x` and
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`y`, and all values `assert` with an error message. This
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operator is commutative, unlike (//). */
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operator is commutative, unlike (//).
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Type: unionOfDisjoint :: AttrSet -> AttrSet -> AttrSet
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*/
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unionOfDisjoint = x: y:
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let
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intersection = builtins.intersectAttrs x y;
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@ -930,9 +940,10 @@ rec {
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in
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(x // y) // mask;
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# deprecated
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# DEPRECATED
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zipWithNames = zipAttrsWithNames;
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# deprecated
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# DEPRECATED
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zip = builtins.trace
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"lib.zip is deprecated, use lib.zipAttrsWith instead" zipAttrsWith;
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}
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@ -104,8 +104,6 @@ rec {
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/* Creates an Option attribute set for an option that specifies the
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package a module should use for some purpose.
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Type: mkPackageOption :: pkgs -> string -> { default :: [string], example :: null | string | [string] } -> option
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The package is specified as a list of strings representing its attribute path in nixpkgs.
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Because of this, you need to pass nixpkgs itself as the first argument.
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@ -116,6 +114,8 @@ rec {
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You can omit the default path if the name of the option is also attribute path in nixpkgs.
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Type: mkPackageOption :: pkgs -> string -> { default :: [string], example :: null | string | [string] } -> option
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Example:
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mkPackageOption pkgs "hello" { }
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=> { _type = "option"; default = «derivation /nix/store/3r2vg51hlxj3cx5vscp0vkv60bqxkaq0-hello-2.10.drv»; defaultText = { ... }; description = "The hello package to use."; type = { ... }; }
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