def props.fold

gralha-svg-render@0.1.0.1 · svg.bend:2018

import Base
import gralha-xml-doc@0.1.0.1/xml.bend as XML

2018def props.fold(spec: List<&2, Prop>, +parent: List<&2, XML.Attr>, +as: List<&2, XML.Attr>) -> List<&2, XML.Attr>:
2019  match spec:
2020    case Nil{}: as
2021    case Con{Prop{key, initial, inherited}, rest}:
2022      +k = key
2023      +ini = initial
2024      Con{XML.Attr{k, style.value(as, k, props.head.value(parent, k, ini), ini, inherited)}, props.fold(rest, props.advance(parent, k), as)}