Method setProposal

src/runtime/join.ts:191–201

(index, toProvide, scopeIx)

  }

  setProposal(index, toProvide, scopeIx) {
    let proposal = this.proposalObject;
    if(index) {
      proposal.providing = toProvide;
      proposal.index[scopeIx] = index.index;
      proposal.cardinality += index.cardinality;
      return true;
    }
    proposal.index[scopeIx] = undefined;
    return false;
  }

  toLookupType(resolved) {
    let [e,a,v,node] = resolved;