return &event{
		key:       string(kv.Key),
		value:     kv.Value,
		prevValue: nil,
		rev:       kv.ModRevision,
		isDeleted: false,
		isCreated: true,
	}
}

func parseEvent(e *clientv3.Event) (*event, error) {
	if !e.IsCreate() && e.PrevKv == nil {
		// If the previous value is nil, error. One example of how this is possible is if the previous value has been compacted already.

	buf, err := p.readFull(int(sz))
	if err != nil {
		return "", fmt.Errorf("failed to read trace: %w", err)
	}
	return string(buf), nil
}

// parseEvent transforms raw events into events.
// It does analyze and verify per-event-type arguments.
func (p *parser) parseEvent(raw *rawEvent, ev *Event) error {
	desc := &EventDescriptions[raw.typ]
	if desc.Name == "" {
		return fmt.Errorf("missing description for event type %d", raw.typ)

			continue
		}

		for _, e := range wres.Events {
			metrics.RecordEtcdEvent(wc.watcher.groupResource.String())
			parsedEvent, err := parseEvent(e)
			if err != nil {
				logWatchChannelErr(err)
				wc.sendError(err)
				return
			}
			wc.sendEvent(parsedEvent)
		}
	}
	// When we come to this point, it's only possible that client side ends the watch.
	// e.g. cancel the context, close the client.

					continue
				}
				events = append(events, e)
				lines = append(lines, string(line))
			}
		}
		return events, lines
	}
	haveEvents, haveLines := parseEvents(have)
	wantEvents, wantLines := parseEvents(want)
	if t.Failed() {
		return
	}

	// Make sure the events we have match the events we want.
	// At each step we're matching haveEvents[i] against wantEvents[j].

}

func (p *parser) parseIdentList() (list []*ast.Ident) {
	if p.trace {
		defer un(trace(p, "IdentList"))
	}

	list = append(list, p.parseIdent())
	for p.tok == token.COMMA {
		p.next()
		list = append(list, p.parseIdent())
	}

	return
}

// ----------------------------------------------------------------------------
// Common productions

}

func (p *parser) parseIdentList() (list []*ast.Ident) {
	if p.trace {
		defer un(trace(p, "IdentList"))
	}

	list = append(list, p.parseIdent())
	for p.tok == token.COMMA {
		p.next()
		list = append(list, p.parseIdent())
	}

	return
}

// ----------------------------------------------------------------------------
// Common productions

if(this.is64bit_===undefined){throw Error('Cannot determine pointer size of the system trace.'+'Consider deselecting "System tracing" or disabling the "Paging '+'Executive" feature of Windows');}