def update_current

stelliferous@0.0.2.0 · proofs/traversal_visit_witness.bend:63

import Base
import stelliferous@0.0.2.0/traversal_array.bend as Traversal
import stelliferous@0.0.2.0/proofs/storage_witness.bend as Witness
import stelliferous@0.0.2.0/proofs/traversal_witness.bend as TraversalWitness

63def update_current(~Reader: Type,~Element: Data,~Context: Data,~read: Reader -> Context -> Reader & Traversal.Visited<Context,Element>,
64  ~combine: Element -> Element -> Element,+depth: Nat,-reader: Reader,position: U32,context: Context,-output: Array<Element>,-result: Array<Element> & Element,
65  output_evidence: Witness.Witness(Element,depth,output),observed: Witness.Read<Element,output,result>,sample: Sample<Reader,Element,Context,reader,read(reader,context)>) ->
66  TraversalWitness.StateEvidence<Reader,Element,Context,reader,depth,Traversal.visit_update_current(~Reader,~Element,~Context,~read,~combine,position,context,reader,result)>:
67  match observed:
68    case Witness.Read{value,equation}:
69      %Equal.sym(Array<Element> & Element,result,(output,value),equation) :
70        TraversalWitness.StateEvidence<Reader,Element,Context,reader,depth,Traversal.visit_update_current(~Reader,~Element,~Context,~read,~combine,position,context,reader,_)>
71      update_sample(~Reader,~Element,~Context,~combine,depth,reader,position,output,value,read(reader,context),output_evidence,sample)