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setAttrByPath

lib.attrsets.setAttrByPath

Docs pulled from | This Revision | 10 minutes ago


Create a new attribute set with value set at the nested attribute location specified in attrPath.

Inputs

attrPath

A list of strings representing the attribute path to set

value

The value to set at the location described by attrPath

Type

setAttrByPath :: [String] -> Any -> AttrSet

Examples

lib.attrsets.setAttrByPath usage example

setAttrByPath ["a" "b"] 3
=> { a = { b = 3; }; }

Noogle detected

Aliases

Implementation

The following is the current implementation of this function.

setAttrByPath =
    attrPath:
    value:
    let
      len = length attrPath;
      atDepth = n:
        if n == len
        then value
        else { ${elemAt attrPath n} = atDepth (n + 1); };
    in atDepth 0;