def find.at

emerging-ezjson@1.3.0.0 · src/value.bend:305

import Base

305# the matched value, or the next pair when the key differs
306def find.at(rest: Json, +key: String, eq: Bool, vv: Json) -> Json:
307  match rest key eq vv:
308    case r k True{} val:
309      val
310    case JPair{k2, v2, r2} k False{} val:
311      find.at(r2, k, find.eq(k2, k), v2)
312    case JBind{src, n, v2, r2} k False{} val:
313      find.at(r2, k, span.eq(src, n, k), v2)
314    case r k s val:
315      JNull{}